commit 31e31b8a248ffa216223dad49f75efbdfca5df23
Author: bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
Date:   Tue Feb 18 22:55:36 2003 +0000

    This commit was generated by cvs2svn to compensate for changes in r2,
    which included commits to RCS files with non-trunk default branches.
    
    
    git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3 c046a42c-6fe2-441c-8c8c-71466251a162

diff --git a/COPYING.LIB b/COPYING.LIB
new file mode 100644
index 0000000..8d4919e
--- /dev/null
+++ b/COPYING.LIB
@@ -0,0 +1,504 @@
+------------------------------------------------------------------------------
+NOTE:
+Some code of the Twin package was modified for DOSEMU by the DOSEMU-team.
+The original is 'Copyright 1997 Willows Software, Inc.' and generously
+was put under the GNU Library General Public License.
+( for more information see http://www.willows.com/ )
+
+We make use of section 3 of the GNU Library General Public License
+('...opt to apply the terms of the ordinary GNU General Public License...'),
+because the resulting product is an integrated part of DOSEMU and
+can not be considered to be a 'library' in the terms of Library License.
+
+Therefore, the below GNU LIBRARY GENERAL PUBLIC LICENSE applies only to the
+_unchanged_ Twin package from Willows. For the DOSEMU-changed parts the normal
+GNU GENERAL PUBLIC LICENSE applies. This GPL (file COPYING) can be found in
+the root directory of the DOSEMU distribution.
+
+The act of transformation to GPL was indicated to the maintainer of the Twin
+package (Rob Penrose <rob@Canopy.Com>) and he acknowledge agreement.
+
+Nov. 1 1997, The DOSEMU team.
+
+------------------------------------------------------------------------------
+		  GNU LIBRARY GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1991 Free Software Foundation, Inc.
+                    675 Mass Ave, Cambridge, MA 02139, USA
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+That's all there is to it!
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..4e5689a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,37 @@
+CFLAGS=-Wall -O2 -g
+LDFLAGS=-g
+DEFINES=-D_GNU_SOURCE -DGEMU -DDOSEMU #-DNO_TRACE_MSGS
+
+OBJS= i386/fp87.o i386/interp_main.o i386/interp_modrm.o i386/interp_16_32.o \
+      i386/interp_32_16.o i386/interp_32_32.o i386/emu-utils.o \
+      i386/dis8086.o i386/emu-ldt.o
+OBJS+= elfload.o main.o thunk.o syscall.o
+
+SRCS = $(OBJS:.o=.c)
+
+all: gemu
+
+gemu: $(OBJS)
+	$(CC) -Wl,-T,i386.ld $(LDFLAGS) -o $@ $(OBJS)
+
+depend: $(SRCS)
+	$(CC) -MM $(CFLAGS) $^ 1>.depend
+
+%.o: %.c
+	$(CC) $(CFLAGS) $(DEFINES) -c -o $@ $<
+
+clean:
+	rm -f *.o *~ i386/*.o i386/*~ gemu hello test1 test2 TAGS
+
+hello: hello.c
+	$(CC) -nostdlib $(CFLAGS) -static $(LDFLAGS) -o $@ $<
+
+test1: test1.c
+	$(CC) $(CFLAGS) -static $(LDFLAGS) -o $@ $<
+
+test2: test2.c
+	$(CC) $(CFLAGS) -static $(LDFLAGS) -o $@ $<
+
+ifneq ($(wildcard .depend),)
+include .depend
+endif
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..045f877
--- /dev/null
+++ b/TODO
@@ -0,0 +1,2 @@
+- swap all elf paramters
+- fix printf for doubles (fp87.c bug ?)
diff --git a/elf.h b/elf.h
new file mode 100644
index 0000000..f9108c5
--- /dev/null
+++ b/elf.h
@@ -0,0 +1,425 @@
+/*
+ * ELF register definitions..
+ */
+
+#include <inttypes.h>
+
+typedef uint32_t  elf_greg_t;
+
+#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef struct user_i387_struct elf_fpregset_t;
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) )
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS32
+#define ELF_DATA	ELFDATA2LSB;
+#define ELF_ARCH	EM_386
+
+	/* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
+	   starts %edx contains a pointer to a function which might be
+	   registered using `atexit'.  This provides a mean for the
+	   dynamic linker to call DT_FINI functions for shared libraries
+	   that have been loaded before the code runs.
+
+	   A value of 0 tells we have no such handler.  */
+#define ELF_PLAT_INIT(_r)	_r->edx = 0
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE	4096
+
+
+typedef uint32_t	 Elf32_Addr;
+typedef uint16_t Elf32_Half;
+typedef uint32_t Elf32_Off;
+typedef int32_t  Elf32_Sword;
+typedef uint32_t Elf32_Word;
+
+/* These constants are for the segment types stored in the image headers */
+#define PT_NULL    0
+#define PT_LOAD    1
+#define PT_DYNAMIC 2
+#define PT_INTERP  3
+#define PT_NOTE    4
+#define PT_SHLIB   5
+#define PT_PHDR    6
+#define PT_LOPROC  0x70000000
+#define PT_HIPROC  0x7fffffff
+
+/* These constants define the different elf file types */
+#define ET_NONE   0
+#define ET_REL    1
+#define ET_EXEC   2
+#define ET_DYN    3
+#define ET_CORE   4
+#define ET_LOPROC 5
+#define ET_HIPROC 6
+
+/* These constants define the various ELF target machines */
+#define EM_NONE  0
+#define EM_M32   1
+#define EM_SPARC 2
+#define EM_386   3
+#define EM_68K   4
+#define EM_88K   5
+#define EM_486   6   /* Perhaps disused */
+#define EM_860   7
+
+#define EM_MIPS		8	/* MIPS R3000 (officially, big-endian only) */
+
+#define EM_MIPS_RS4_BE 10	/* MIPS R4000 big-endian */
+
+#define EM_SPARC64     11	/* SPARC v9 (not official) 64-bit */
+
+#define EM_PARISC      15	/* HPPA */
+
+#define EM_SPARC32PLUS 18	/* Sun's "v8plus" */
+
+#define EM_PPC	       20	/* PowerPC */
+
+/*
+ * This is an interim value that we will use until the committee comes
+ * up with a final number.
+ */
+#define EM_ALPHA	0x9026
+
+
+/* This is the info that is needed to parse the dynamic section of the file */
+#define DT_NULL		0
+#define DT_NEEDED	1
+#define DT_PLTRELSZ	2
+#define DT_PLTGOT	3
+#define DT_HASH		4
+#define DT_STRTAB	5
+#define DT_SYMTAB	6
+#define DT_RELA		7
+#define DT_RELASZ	8
+#define DT_RELAENT	9
+#define DT_STRSZ	10
+#define DT_SYMENT	11
+#define DT_INIT		12
+#define DT_FINI		13
+#define DT_SONAME	14
+#define DT_RPATH 	15
+#define DT_SYMBOLIC	16
+#define DT_REL	        17
+#define DT_RELSZ	18
+#define DT_RELENT	19
+#define DT_PLTREL	20
+#define DT_DEBUG	21
+#define DT_TEXTREL	22
+#define DT_JMPREL	23
+#define DT_LOPROC	0x70000000
+#define DT_HIPROC	0x7fffffff
+
+/* This info is needed when parsing the symbol table */
+#define STB_LOCAL  0
+#define STB_GLOBAL 1
+#define STB_WEAK   2
+
+#define STT_NOTYPE  0
+#define STT_OBJECT  1
+#define STT_FUNC    2
+#define STT_SECTION 3
+#define STT_FILE    4
+
+#define ELF32_ST_BIND(x) ((x) >> 4)
+#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf)
+
+/* Symbolic values for the entries in the auxiliary table
+   put on the initial stack */
+#define AT_NULL   0	/* end of vector */
+#define AT_IGNORE 1	/* entry should be ignored */
+#define AT_EXECFD 2	/* file descriptor of program */
+#define AT_PHDR   3	/* program headers for program */
+#define AT_PHENT  4	/* size of program header entry */
+#define AT_PHNUM  5	/* number of program headers */
+#define AT_PAGESZ 6	/* system page size */
+#define AT_BASE   7	/* base address of interpreter */
+#define AT_FLAGS  8	/* flags */
+#define AT_ENTRY  9	/* entry point of program */
+#define AT_NOTELF 10	/* program is not ELF */
+#define AT_UID    11	/* real uid */
+#define AT_EUID   12	/* effective uid */
+#define AT_GID    13	/* real gid */
+#define AT_EGID   14	/* effective gid */
+
+
+typedef struct dynamic{
+  Elf32_Sword d_tag;
+  union{
+    Elf32_Sword	d_val;
+    Elf32_Addr	d_ptr;
+  } d_un;
+} Elf32_Dyn;
+
+typedef struct {
+  unsigned long long d_tag;		/* entry tag value */
+  union {
+    unsigned long long d_val;
+    unsigned long long d_ptr;
+  } d_un;
+} Elf64_Dyn;
+
+/* The following are used with relocations */
+#define ELF32_R_SYM(x) ((x) >> 8)
+#define ELF32_R_TYPE(x) ((x) & 0xff)
+
+#define R_386_NONE	0
+#define R_386_32	1
+#define R_386_PC32	2
+#define R_386_GOT32	3
+#define R_386_PLT32	4
+#define R_386_COPY	5
+#define R_386_GLOB_DAT	6
+#define R_386_JMP_SLOT	7
+#define R_386_RELATIVE	8
+#define R_386_GOTOFF	9
+#define R_386_GOTPC	10
+#define R_386_NUM	11
+
+typedef struct elf32_rel {
+  Elf32_Addr	r_offset;
+  Elf32_Word	r_info;
+} Elf32_Rel;
+
+typedef struct elf64_rel {
+  unsigned long long r_offset;	/* Location at which to apply the action */
+  unsigned long long r_info;	/* index and type of relocation */
+} Elf64_Rel;
+
+typedef struct elf32_rela{
+  Elf32_Addr	r_offset;
+  Elf32_Word	r_info;
+  Elf32_Sword	r_addend;
+} Elf32_Rela;
+
+typedef struct elf64_rela {
+  unsigned long long r_offset;	/* Location at which to apply the action */
+  unsigned long long r_info;	/* index and type of relocation */
+  unsigned long long r_addend;	/* Constant addend used to compute value */
+} Elf64_Rela;
+
+typedef struct elf32_sym{
+  Elf32_Word	st_name;
+  Elf32_Addr	st_value;
+  Elf32_Word	st_size;
+  unsigned char	st_info;
+  unsigned char	st_other;
+  Elf32_Half	st_shndx;
+} Elf32_Sym;
+
+typedef struct elf64_sym {
+  unsigned int	st_name;		/* Symbol name, index in string tbl */
+  unsigned char	st_info;		/* Type and binding attributes */
+  unsigned char	st_other;		/* No defined meaning, 0 */
+  unsigned short st_shndx;		/* Associated section index */
+  unsigned long long st_value;		/* Value of the symbol */
+  unsigned long long st_size;		/* Associated symbol size */
+} Elf64_Sym;
+
+
+#define EI_NIDENT	16
+
+typedef struct elf32_hdr{
+  unsigned char	e_ident[EI_NIDENT];
+  Elf32_Half	e_type;
+  Elf32_Half	e_machine;
+  Elf32_Word	e_version;
+  Elf32_Addr	e_entry;  /* Entry point */
+  Elf32_Off	e_phoff;
+  Elf32_Off	e_shoff;
+  Elf32_Word	e_flags;
+  Elf32_Half	e_ehsize;
+  Elf32_Half	e_phentsize;
+  Elf32_Half	e_phnum;
+  Elf32_Half	e_shentsize;
+  Elf32_Half	e_shnum;
+  Elf32_Half	e_shstrndx;
+} Elf32_Ehdr;
+
+typedef struct elf64_hdr {
+  unsigned char	e_ident[16];		/* ELF "magic number" */
+  short int e_type;
+  short unsigned int e_machine;
+  int   e_version;
+  unsigned long long e_entry;		/* Entry point virtual address */
+  unsigned long long e_phoff;		/* Program header table file offset */
+  unsigned long long e_shoff;		/* Section header table file offset */
+  int   e_flags;
+  short int e_ehsize;
+  short int e_phentsize;
+  short int e_phnum;
+  short int e_shentsize;
+  short int e_shnum;
+  short int e_shstrndx;
+} Elf64_Ehdr;
+
+/* These constants define the permissions on sections in the program
+   header, p_flags. */
+#define PF_R		0x4
+#define PF_W		0x2
+#define PF_X		0x1
+
+typedef struct elf32_phdr{
+  Elf32_Word	p_type;
+  Elf32_Off	p_offset;
+  Elf32_Addr	p_vaddr;
+  Elf32_Addr	p_paddr;
+  Elf32_Word	p_filesz;
+  Elf32_Word	p_memsz;
+  Elf32_Word	p_flags;
+  Elf32_Word	p_align;
+} Elf32_Phdr;
+
+typedef struct elf64_phdr {
+  int p_type;
+  int p_flags;
+  unsigned long long p_offset;		/* Segment file offset */
+  unsigned long long p_vaddr;		/* Segment virtual address */
+  unsigned long long p_paddr;		/* Segment physical address */
+  unsigned long long p_filesz;		/* Segment size in file */
+  unsigned long long p_memsz;		/* Segment size in memory */
+  unsigned long long p_align;		/* Segment alignment, file & memory */
+} Elf64_Phdr;
+
+/* sh_type */
+#define SHT_NULL	0
+#define SHT_PROGBITS	1
+#define SHT_SYMTAB	2
+#define SHT_STRTAB	3
+#define SHT_RELA	4
+#define SHT_HASH	5
+#define SHT_DYNAMIC	6
+#define SHT_NOTE	7
+#define SHT_NOBITS	8
+#define SHT_REL		9
+#define SHT_SHLIB	10
+#define SHT_DYNSYM	11
+#define SHT_NUM		12
+#define SHT_LOPROC	0x70000000
+#define SHT_HIPROC	0x7fffffff
+#define SHT_LOUSER	0x80000000
+#define SHT_HIUSER	0xffffffff
+
+/* sh_flags */
+#define SHF_WRITE	0x1
+#define SHF_ALLOC	0x2
+#define SHF_EXECINSTR	0x4
+#define SHF_MASKPROC	0xf0000000
+
+/* special section indexes */
+#define SHN_UNDEF	0
+#define SHN_LORESERVE	0xff00
+#define SHN_LOPROC	0xff00
+#define SHN_HIPROC	0xff1f
+#define SHN_ABS		0xfff1
+#define SHN_COMMON	0xfff2
+#define SHN_HIRESERVE	0xffff
+ 
+typedef struct {
+  Elf32_Word	sh_name;
+  Elf32_Word	sh_type;
+  Elf32_Word	sh_flags;
+  Elf32_Addr	sh_addr;
+  Elf32_Off	sh_offset;
+  Elf32_Word	sh_size;
+  Elf32_Word	sh_link;
+  Elf32_Word	sh_info;
+  Elf32_Word	sh_addralign;
+  Elf32_Word	sh_entsize;
+} Elf32_Shdr;
+
+typedef struct elf64_shdr {
+  unsigned int	sh_name;		/* Section name, index in string tbl */
+  unsigned int	sh_type;		/* Type of section */
+  unsigned long long sh_flags;		/* Miscellaneous section attributes */
+  unsigned long long sh_addr;		/* Section virtual addr at execution */
+  unsigned long long sh_offset;		/* Section file offset */
+  unsigned long long sh_size;		/* Size of section in bytes */
+  unsigned int	sh_link;		/* Index of another section */
+  unsigned int	sh_info;		/* Additional section information */
+  unsigned long long sh_addralign;	/* Section alignment */
+  unsigned long long sh_entsize;	/* Entry size if section holds table */
+} Elf64_Shdr;
+
+#define	EI_MAG0		0		/* e_ident[] indexes */
+#define	EI_MAG1		1
+#define	EI_MAG2		2
+#define	EI_MAG3		3
+#define	EI_CLASS	4
+#define	EI_DATA		5
+#define	EI_VERSION	6
+#define	EI_PAD		7
+
+#define	ELFMAG0		0x7f		/* EI_MAG */
+#define	ELFMAG1		'E'
+#define	ELFMAG2		'L'
+#define	ELFMAG3		'F'
+#define	ELFMAG		"\177ELF"
+#define	SELFMAG		4
+
+#define	ELFCLASSNONE	0		/* EI_CLASS */
+#define	ELFCLASS32	1
+#define	ELFCLASS64	2
+#define	ELFCLASSNUM	3
+
+#define ELFDATANONE	0		/* e_ident[EI_DATA] */
+#define ELFDATA2LSB	1
+#define ELFDATA2MSB	2
+
+#define EV_NONE		0		/* e_version, EI_VERSION */
+#define EV_CURRENT	1
+#define EV_NUM		2
+
+/* Notes used in ET_CORE */
+#define NT_PRSTATUS	1
+#define NT_PRFPREG	2
+#define NT_PRPSINFO	3
+#define NT_TASKSTRUCT	4
+
+/* Note header in a PT_NOTE section */
+typedef struct elf32_note {
+  Elf32_Word	n_namesz;	/* Name size */
+  Elf32_Word	n_descsz;	/* Content size */
+  Elf32_Word	n_type;		/* Content type */
+} Elf32_Nhdr;
+
+/* Note header in a PT_NOTE section */
+/*
+ * For now we use the 32 bit version of the structure until we figure
+ * out whether we need anything better.  Note - on the Alpha, "unsigned int"
+ * is only 32 bits.
+ */
+typedef struct elf64_note {
+  unsigned int	n_namesz;	/* Name size */
+  unsigned int	n_descsz;	/* Content size */
+  unsigned int	n_type;		/* Content type */
+} Elf64_Nhdr;
+
+#define ELF_START_MMAP 0x80000000
+
+#if ELF_CLASS == ELFCLASS32
+
+extern Elf32_Dyn _DYNAMIC [];
+#define elfhdr		elf32_hdr
+#define elf_phdr	elf32_phdr
+#define elf_note	elf32_note
+
+#else
+
+extern Elf64_Dyn _DYNAMIC [];
+#define elfhdr		elf64_hdr
+#define elf_phdr	elf64_phdr
+#define elf_note	elf64_note
+
+#endif
+
+
diff --git a/i386.ld b/i386.ld
new file mode 100644
index 0000000..a64ec2f
--- /dev/null
+++ b/i386.ld
@@ -0,0 +1,130 @@
+/* ld script to make i386 Linux kernel
+ * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>;
+ */
+OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+OUTPUT_ARCH(i386)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/alpha-unknown-linux-gnu/lib);
+ENTRY(_start)
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = 0x60000000 + SIZEOF_HEADERS;
+  .interp     : { *(.interp) 	}
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .gnu.version   : { *(.gnu.version)	}
+  .gnu.version_d   : { *(.gnu.version_d)	}
+  .gnu.version_r   : { *(.gnu.version_r)	}
+  .rel.text      :
+    { *(.rel.text) *(.rel.gnu.linkonce.t*) }
+  .rela.text     :
+    { *(.rela.text) *(.rela.gnu.linkonce.t*) }
+  .rel.data      :
+    { *(.rel.data) *(.rel.gnu.linkonce.d*) }
+  .rela.data     :
+    { *(.rela.data) *(.rela.gnu.linkonce.d*) }
+  .rel.rodata    :
+    { *(.rel.rodata) *(.rel.gnu.linkonce.r*) }
+  .rela.rodata   :
+    { *(.rela.rodata) *(.rela.gnu.linkonce.r*) }
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.init      : { *(.rel.init)	}
+  .rela.init     : { *(.rela.init)	}
+  .rel.fini      : { *(.rel.fini)	}
+  .rela.fini     : { *(.rela.fini)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	} =0x47ff041f
+  .text      :
+  {
+    *(.text)
+    /* .gnu.warning sections are handled specially by elf32.em.  */
+    *(.gnu.warning)
+    *(.gnu.linkonce.t*)
+  } =0x47ff041f
+  _etext = .;
+  PROVIDE (etext = .);
+  .fini      : { *(.fini)    } =0x47ff041f
+  .rodata    : { *(.rodata) *(.gnu.linkonce.r*) }
+  .rodata1   : { *(.rodata1) }
+  .reginfo : { *(.reginfo) }
+  /* Adjust the address for the data segment.  We want to adjust up to
+     the same address within the page on the next page up.  */
+  . = ALIGN(0x100000) + (. & (0x100000 - 1));
+  .data    :
+  {
+    *(.data)
+    *(.gnu.linkonce.d*)
+    CONSTRUCTORS
+  }
+  .data1   : { *(.data1) }
+  .ctors         :
+  {
+    *(.ctors)
+  }
+  .dtors         :
+  {
+    *(.dtors)
+  }
+  .plt      : { *(.plt)	}
+  .got           : { *(.got.plt) *(.got) }
+  .dynamic       : { *(.dynamic) }
+  /* We want the small data sections together, so single-instruction offsets
+     can access them all, and initialized data all before uninitialized, so
+     we can shorten the on-disk segment size.  */
+  .sdata     : { *(.sdata) }
+  _edata  =  .;
+  PROVIDE (edata = .);
+  __bss_start = .;
+  .sbss      : { *(.sbss) *(.scommon) }
+  .bss       :
+  {
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+  /* Stabs debugging sections.  */
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+  .stab.excl 0 : { *(.stab.excl) }
+  .stab.exclstr 0 : { *(.stab.exclstr) }
+  .stab.index 0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+  .comment 0 : { *(.comment) }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
new file mode 100644
index 0000000..0ee4f13
--- /dev/null
+++ b/linux-user/elfload.c
@@ -0,0 +1,973 @@
+/* This is the Linux kernel elf-loading code, ported into user space */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gemu.h"
+
+#include "linux_bin.h"
+#include "elf.h"
+#include "segment.h"
+
+/* Necessary parameters */
+#define	ALPHA_PAGE_SIZE 4096
+#define	X86_PAGE_SIZE 4096
+
+#define ALPHA_PAGE_MASK (~(ALPHA_PAGE_SIZE-1))
+#define X86_PAGE_MASK (~(X86_PAGE_SIZE-1))
+
+#define ALPHA_PAGE_ALIGN(addr) ((((addr)+ALPHA_PAGE_SIZE)-1)&ALPHA_PAGE_MASK)
+#define X86_PAGE_ALIGN(addr) ((((addr)+X86_PAGE_SIZE)-1)&X86_PAGE_MASK)
+
+#define NGROUPS 32
+
+#define X86_ELF_EXEC_PAGESIZE X86_PAGE_SIZE
+#define X86_ELF_PAGESTART(_v) ((_v) & ~(unsigned long)(X86_ELF_EXEC_PAGESIZE-1))
+#define X86_ELF_PAGEOFFSET(_v) ((_v) & (X86_ELF_EXEC_PAGESIZE-1))
+
+#define ALPHA_ELF_PAGESTART(_v) ((_v) & ~(unsigned long)(ALPHA_PAGE_SIZE-1))
+#define ALPHA_ELF_PAGEOFFSET(_v) ((_v) & (ALPHA_PAGE_SIZE-1))
+
+#define INTERPRETER_NONE 0
+#define INTERPRETER_AOUT 1
+#define INTERPRETER_ELF 2
+
+#define DLINFO_ITEMS 12
+
+/* Where we find X86 libraries... */
+//#define X86_DEFAULT_LIB_DIR	"/usr/x86/"
+#define X86_DEFAULT_LIB_DIR	"/"
+
+//extern void * mmap4k();
+#define mmap4k(a, b, c, d, e, f) mmap((void *)(a), b, c, d, e, f)
+
+extern unsigned long x86_stack_size;
+
+static int load_aout_interp(void * exptr, int interp_fd);
+
+#ifdef BSWAP_NEEDED
+static void bswap_ehdr(Elf32_Ehdr *ehdr)
+{
+    bswap16s(&ehdr->e_type);			/* Object file type */
+    bswap16s(&ehdr->e_machine);		/* Architecture */
+    bswap32s(&ehdr->e_version);		/* Object file version */
+    bswap32s(&ehdr->e_entry);		/* Entry point virtual address */
+    bswap32s(&ehdr->e_phoff);		/* Program header table file offset */
+    bswap32s(&ehdr->e_shoff);		/* Section header table file offset */
+    bswap32s(&ehdr->e_flags);		/* Processor-specific flags */
+    bswap16s(&ehdr->e_ehsize);		/* ELF header size in bytes */
+    bswap16s(&ehdr->e_phentsize);		/* Program header table entry size */
+    bswap16s(&ehdr->e_phnum);		/* Program header table entry count */
+    bswap16s(&ehdr->e_shentsize);		/* Section header table entry size */
+    bswap16s(&ehdr->e_shnum);		/* Section header table entry count */
+    bswap16s(&ehdr->e_shstrndx);		/* Section header string table index */
+}
+
+static void bswap_phdr(Elf32_Phdr *phdr)
+{
+    bswap32s(&phdr->p_type);			/* Segment type */
+    bswap32s(&phdr->p_offset);		/* Segment file offset */
+    bswap32s(&phdr->p_vaddr);		/* Segment virtual address */
+    bswap32s(&phdr->p_paddr);		/* Segment physical address */
+    bswap32s(&phdr->p_filesz);		/* Segment size in file */
+    bswap32s(&phdr->p_memsz);		/* Segment size in memory */
+    bswap32s(&phdr->p_flags);		/* Segment flags */
+    bswap32s(&phdr->p_align);		/* Segment alignment */
+}
+#endif
+
+static void * get_free_page(void)
+{
+    void *	retval;
+
+    /* User-space version of kernel get_free_page.  Returns a page-aligned
+     * page-sized chunk of memory.
+     */
+    retval = mmap4k(0, ALPHA_PAGE_SIZE, PROT_READ|PROT_WRITE, 
+			MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+
+    if((long)retval == -1) {
+	perror("get_free_page");
+	exit(-1);
+    }
+    else {
+	return(retval);
+    }
+}
+
+static void free_page(void * pageaddr)
+{
+    (void)munmap(pageaddr, ALPHA_PAGE_SIZE);
+}
+
+/*
+ * 'copy_string()' copies argument/envelope strings from user
+ * memory to free pages in kernel mem. These are in a format ready
+ * to be put directly into the top of new user memory.
+ *
+ */
+static unsigned long copy_strings(int argc,char ** argv,unsigned long *page,
+                unsigned long p)
+{
+    char *tmp, *tmp1, *pag = NULL;
+    int len, offset = 0;
+
+    if (!p) {
+	return 0;       /* bullet-proofing */
+    }
+    while (argc-- > 0) {
+	if (!(tmp1 = tmp = get_user(argv+argc))) {
+	    fprintf(stderr, "VFS: argc is wrong");
+	    exit(-1);
+	}
+	while (get_user(tmp++));
+	len = tmp - tmp1;
+	if (p < len) {  /* this shouldn't happen - 128kB */
+		return 0;
+	}
+	while (len) {
+	    --p; --tmp; --len;
+	    if (--offset < 0) {
+		offset = p % X86_PAGE_SIZE;
+		if (!(pag = (char *) page[p/X86_PAGE_SIZE]) &&
+		    !(pag = (char *) page[p/X86_PAGE_SIZE] =
+		      (unsigned long *) get_free_page())) {
+			return 0;
+		}
+	    }
+	    if (len == 0 || offset == 0) {
+	        *(pag + offset) = get_user(tmp);
+	    }
+	    else {
+	      int bytes_to_copy = (len > offset) ? offset : len;
+	      tmp -= bytes_to_copy;
+	      p -= bytes_to_copy;
+	      offset -= bytes_to_copy;
+	      len -= bytes_to_copy;
+	      memcpy_fromfs(pag + offset, tmp, bytes_to_copy + 1);
+	    }
+	}
+    }
+    return p;
+}
+
+static int in_group_p(gid_t g)
+{
+    /* return TRUE if we're in the specified group, FALSE otherwise */
+    int		ngroup;
+    int		i;
+    gid_t	grouplist[NGROUPS];
+
+    ngroup = getgroups(NGROUPS, grouplist);
+    for(i = 0; i < ngroup; i++) {
+	if(grouplist[i] == g) {
+	    return 1;
+	}
+    }
+    return 0;
+}
+
+static int count(char ** vec)
+{
+    int		i;
+
+    for(i = 0; *vec; i++) {
+        vec++;
+    }
+
+    return(i);
+}
+
+static int prepare_binprm(struct linux_binprm *bprm)
+{
+    struct stat		st;
+    int mode;
+    int retval, id_change;
+
+    if(fstat(bprm->fd, &st) < 0) {
+	return(-errno);
+    }
+
+    mode = st.st_mode;
+    if(!S_ISREG(mode)) {	/* Must be regular file */
+	return(-EACCES);
+    }
+    if(!(mode & 0111)) {	/* Must have at least one execute bit set */
+	return(-EACCES);
+    }
+
+    bprm->e_uid = geteuid();
+    bprm->e_gid = getegid();
+    id_change = 0;
+
+    /* Set-uid? */
+    if(mode & S_ISUID) {
+    	bprm->e_uid = st.st_uid;
+	if(bprm->e_uid != geteuid()) {
+	    id_change = 1;
+	}
+    }
+
+    /* Set-gid? */
+    /*
+     * If setgid is set but no group execute bit then this
+     * is a candidate for mandatory locking, not a setgid
+     * executable.
+     */
+    if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
+	bprm->e_gid = st.st_gid;
+	if (!in_group_p(bprm->e_gid)) {
+		id_change = 1;
+	}
+    }
+
+    memset(bprm->buf, 0, sizeof(bprm->buf));
+    retval = lseek(bprm->fd, 0L, SEEK_SET);
+    if(retval >= 0) {
+        retval = read(bprm->fd, bprm->buf, 128);
+    }
+    if(retval < 0) {
+	perror("prepare_binprm");
+	exit(-1);
+	/* return(-errno); */
+    }
+    else {
+	return(retval);
+    }
+}
+
+unsigned long setup_arg_pages(unsigned long p, struct linux_binprm * bprm,
+						struct image_info * info)
+{
+    unsigned long stack_base;
+    int i;
+    extern unsigned long stktop;
+
+    stack_base = X86_STACK_TOP - MAX_ARG_PAGES*X86_PAGE_SIZE;
+
+    p += stack_base;
+    if (bprm->loader) {
+	bprm->loader += stack_base;
+    }
+    bprm->exec += stack_base;
+
+    /* Create enough stack to hold everything.  If we don't use
+     * it for args, we'll use it for something else...
+     */
+    if(x86_stack_size >  MAX_ARG_PAGES*X86_PAGE_SIZE) {
+        if((long)mmap4k((void *)(X86_STACK_TOP-x86_stack_size), x86_stack_size + X86_PAGE_SIZE,
+    		     PROT_READ | PROT_WRITE,
+		     MAP_GROWSDOWN | MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0) == -1) {
+	    perror("stk mmap");
+	    exit(-1);
+	}
+    }
+    else {
+        if((long)mmap4k((void *)stack_base, (MAX_ARG_PAGES+1)*X86_PAGE_SIZE,
+    		     PROT_READ | PROT_WRITE,
+		     MAP_GROWSDOWN | MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0) == -1) {
+	    perror("stk mmap");
+	    exit(-1);
+	}
+    }
+    
+    stktop = stack_base;
+
+    for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
+	if (bprm->page[i]) {
+	    info->rss++;
+
+	    memcpy((void *)stack_base, (void *)bprm->page[i], X86_PAGE_SIZE);
+	    free_page((void *)bprm->page[i]);
+	}
+	stack_base += X86_PAGE_SIZE;
+    }
+    return p;
+}
+
+static void set_brk(unsigned long start, unsigned long end)
+{
+	/* page-align the start and end addresses... */
+        start = ALPHA_PAGE_ALIGN(start);
+        end = ALPHA_PAGE_ALIGN(end);
+        if (end <= start)
+                return;
+        if((long)mmap4k(start, end - start,
+                PROT_READ | PROT_WRITE | PROT_EXEC,
+                MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0) == -1) {
+	    perror("cannot mmap brk");
+	    exit(-1);
+	}
+}
+
+
+/* We need to explicitly zero any fractional pages
+   after the data section (i.e. bss).  This would
+   contain the junk from the file that should not
+   be in memory */
+
+
+static void padzero(unsigned long elf_bss)
+{
+        unsigned long nbyte;
+        char * fpnt;
+
+        nbyte = elf_bss & (ALPHA_PAGE_SIZE-1);	/* was X86_PAGE_SIZE - JRP */
+        if (nbyte) {
+	    nbyte = ALPHA_PAGE_SIZE - nbyte;
+	    fpnt = (char *) elf_bss;
+	    do {
+		*fpnt++ = 0;
+	    } while (--nbyte);
+        }
+}
+
+static unsigned int * create_elf_tables(char *p, int argc, int envc,
+                                  struct elfhdr * exec,
+                                  unsigned long load_addr,
+                                  unsigned long interp_load_addr, int ibcs,
+				  struct image_info *info)
+{
+        unsigned int *argv, *envp, *dlinfo;
+        unsigned int *sp;
+	char **alpha_envp;
+
+        /*
+         * Force 16 byte alignment here for generality.
+         */
+        sp = (unsigned int *) (~15UL & (unsigned long) p);
+        sp -= exec ? DLINFO_ITEMS*2 : 2;
+        dlinfo = sp;
+        sp -= envc+1;
+        envp = sp;
+        sp -= argc+1;
+        argv = sp;
+        if (!ibcs) {
+                put_user(envp,--sp);
+                put_user(argv,--sp);
+        }
+	alpha_envp = (char **)malloc((envc+1) * sizeof(char *));
+
+#define NEW_AUX_ENT(id, val) \
+          put_user ((id), dlinfo++); \
+          put_user ((val), dlinfo++)
+
+        if (exec) { /* Put this here for an ELF program interpreter */
+          struct elf_phdr * eppnt;
+          eppnt = (struct elf_phdr *)((unsigned long)exec->e_phoff);
+
+          NEW_AUX_ENT (AT_PHDR, (unsigned int)(load_addr + exec->e_phoff));
+          NEW_AUX_ENT (AT_PHENT, (unsigned int)(sizeof (struct elf_phdr)));
+          NEW_AUX_ENT (AT_PHNUM, (unsigned int)(exec->e_phnum));
+          NEW_AUX_ENT (AT_PAGESZ, (unsigned int)(ALPHA_PAGE_SIZE));
+          NEW_AUX_ENT (AT_BASE, (unsigned int)(interp_load_addr));
+          NEW_AUX_ENT (AT_FLAGS, (unsigned int)0);
+          NEW_AUX_ENT (AT_ENTRY, (unsigned int) exec->e_entry);
+          NEW_AUX_ENT (AT_UID, (unsigned int) getuid());
+          NEW_AUX_ENT (AT_EUID, (unsigned int) geteuid());
+          NEW_AUX_ENT (AT_GID, (unsigned int) getgid());
+          NEW_AUX_ENT (AT_EGID, (unsigned int) getegid());
+        }
+        NEW_AUX_ENT (AT_NULL, 0);
+#undef NEW_AUX_ENT
+        put_user((unsigned int)argc,--sp);
+        info->arg_start = (unsigned int)((unsigned long)p & 0xffffffff);
+        while (argc-->0) {
+                put_user(p,argv++);
+                while (get_user(p++)) /* nothing */ ;
+        }
+        put_user(0,argv);
+        info->arg_end = info->env_start = (unsigned int)((unsigned long)p & 0xffffffff);
+	__environ = alpha_envp;
+        while (envc-->0) {
+		*alpha_envp++ = (char *)p;
+                put_user(p,envp++);
+                while (get_user(p++)) /* nothing */ ;
+        }
+        put_user(0,envp);
+	*alpha_envp = 0;
+        info->env_end = (unsigned int)((unsigned long)p & 0xffffffff);
+        return sp;
+}
+
+
+
+static unsigned long load_elf_interp(struct elfhdr * interp_elf_ex,
+				     int interpreter_fd,
+				     unsigned long *interp_load_addr)
+{
+	struct elf_phdr *elf_phdata  =  NULL;
+	struct elf_phdr *eppnt;
+	unsigned long load_addr;
+	int load_addr_set = 0;
+	int retval;
+	unsigned long last_bss, elf_bss;
+	unsigned long error;
+	int i;
+	
+	elf_bss = 0;
+	last_bss = 0;
+	error = 0;
+
+	/* We put this here so that mmap will search for the *first*
+	 * available memory...
+	 */
+	load_addr = INTERP_LOADADDR;
+	
+	/* First of all, some simple consistency checks */
+	if ((interp_elf_ex->e_type != ET_EXEC && 
+	    interp_elf_ex->e_type != ET_DYN) || 
+	   !elf_check_arch(interp_elf_ex->e_machine)) {
+		return ~0UL;
+	}
+	
+	/* Now read in all of the header information */
+	
+	if (sizeof(struct elf_phdr) * interp_elf_ex->e_phnum > X86_PAGE_SIZE)
+	    return ~0UL;
+	
+	elf_phdata =  (struct elf_phdr *) 
+		malloc(sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
+
+	if (!elf_phdata)
+	  return ~0UL;
+	
+	/*
+	 * If the size of this structure has changed, then punt, since
+	 * we will be doing the wrong thing.
+	 */
+	if (interp_elf_ex->e_phentsize != sizeof(struct elf_phdr))
+	  {
+	    free(elf_phdata);
+	    return ~0UL;
+	  }
+
+	retval = lseek(interpreter_fd, interp_elf_ex->e_phoff, SEEK_SET);
+	if(retval >= 0) {
+	    retval = read(interpreter_fd,
+			   (char *) elf_phdata,
+			   sizeof(struct elf_phdr) * interp_elf_ex->e_phnum);
+	}
+	
+	if (retval < 0) {
+		perror("load_elf_interp");
+		exit(-1);
+		free (elf_phdata);
+		return retval;
+ 	}
+#ifdef BSWAP_NEEDED
+	eppnt = elf_phdata;
+	for (i=0; i<interp_elf_ex->e_phnum; i++, eppnt++) {
+            bswap_phdr(eppnt);
+        }
+#endif
+	eppnt = elf_phdata;
+	for(i=0; i<interp_elf_ex->e_phnum; i++, eppnt++)
+	  if (eppnt->p_type == PT_LOAD) {
+	    int elf_type = MAP_PRIVATE | MAP_DENYWRITE;
+	    int elf_prot = 0;
+	    unsigned long vaddr = 0;
+	    unsigned long k;
+
+	    if (eppnt->p_flags & PF_R) elf_prot =  PROT_READ;
+	    if (eppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
+	    if (eppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
+	    if (interp_elf_ex->e_type == ET_EXEC || load_addr_set) {
+	    	elf_type |= MAP_FIXED;
+	    	vaddr = eppnt->p_vaddr;
+	    }
+	    error = (unsigned long)mmap4k(load_addr+X86_ELF_PAGESTART(vaddr),
+		 eppnt->p_filesz + X86_ELF_PAGEOFFSET(eppnt->p_vaddr),
+		 elf_prot,
+		 elf_type,
+		 interpreter_fd,
+		 eppnt->p_offset - X86_ELF_PAGEOFFSET(eppnt->p_vaddr));
+	    
+	    if (error > -1024UL) {
+	      /* Real error */
+	      close(interpreter_fd);
+	      free(elf_phdata);
+	      return ~0UL;
+	    }
+
+	    if (!load_addr_set && interp_elf_ex->e_type == ET_DYN) {
+	      load_addr = error;
+	      load_addr_set = 1;
+	    }
+
+	    /*
+	     * Find the end of the file  mapping for this phdr, and keep
+	     * track of the largest address we see for this.
+	     */
+	    k = load_addr + eppnt->p_vaddr + eppnt->p_filesz;
+	    if (k > elf_bss) elf_bss = k;
+
+	    /*
+	     * Do the same thing for the memory mapping - between
+	     * elf_bss and last_bss is the bss section.
+	     */
+	    k = load_addr + eppnt->p_memsz + eppnt->p_vaddr;
+	    if (k > last_bss) last_bss = k;
+	  }
+	
+	/* Now use mmap to map the library into memory. */
+
+	close(interpreter_fd);
+
+	/*
+	 * Now fill out the bss section.  First pad the last page up
+	 * to the page boundary, and then perform a mmap to make sure
+	 * that there are zeromapped pages up to and including the last
+	 * bss page.
+	 */
+	padzero(elf_bss);
+	elf_bss = X86_ELF_PAGESTART(elf_bss + ALPHA_PAGE_SIZE - 1); /* What we have mapped so far */
+
+	/* Map the last of the bss segment */
+	if (last_bss > elf_bss) {
+	  mmap4k(elf_bss, last_bss-elf_bss,
+		  PROT_READ|PROT_WRITE|PROT_EXEC,
+		  MAP_FIXED|MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+	}
+	free(elf_phdata);
+
+	*interp_load_addr = load_addr;
+	return ((unsigned long) interp_elf_ex->e_entry) + load_addr;
+}
+
+
+
+static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs,
+				struct image_info * info)
+{
+    struct elfhdr elf_ex;
+    struct elfhdr interp_elf_ex;
+    struct exec interp_ex;
+    int interpreter_fd = -1; /* avoid warning */
+    unsigned long load_addr;
+    int load_addr_set = 0;
+    unsigned int interpreter_type = INTERPRETER_NONE;
+    unsigned char ibcs2_interpreter;
+    int i;
+    void * mapped_addr;
+    struct elf_phdr * elf_ppnt;
+    struct elf_phdr *elf_phdata;
+    unsigned long elf_bss, k, elf_brk;
+    int retval;
+    char * elf_interpreter;
+    unsigned long elf_entry, interp_load_addr = 0;
+    int status;
+    unsigned long start_code, end_code, end_data;
+    unsigned long elf_stack;
+    char passed_fileno[6];
+
+    ibcs2_interpreter = 0;
+    status = 0;
+    load_addr = 0;
+    elf_ex = *((struct elfhdr *) bprm->buf);          /* exec-header */
+#ifdef BSWAP_NEEDED
+    bswap_ehdr(&elf_ex);
+#endif
+
+    if (elf_ex.e_ident[0] != 0x7f ||
+	strncmp(&elf_ex.e_ident[1], "ELF",3) != 0) {
+	    return  -ENOEXEC;
+    }
+
+
+    /* First of all, some simple consistency checks */
+    if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) ||
+       				(! elf_check_arch(elf_ex.e_machine))) {
+	    return -ENOEXEC;
+    }
+
+    /* Now read in all of the header information */
+
+    elf_phdata = (struct elf_phdr *)malloc(elf_ex.e_phentsize*elf_ex.e_phnum);
+    if (elf_phdata == NULL) {
+	return -ENOMEM;
+    }
+
+    retval = lseek(bprm->fd, elf_ex.e_phoff, SEEK_SET);
+    if(retval > 0) {
+	retval = read(bprm->fd, (char *) elf_phdata, 
+				elf_ex.e_phentsize * elf_ex.e_phnum);
+    }
+
+    if (retval < 0) {
+	perror("load_elf_binary");
+	exit(-1);
+	free (elf_phdata);
+	return -errno;
+    }
+
+    elf_ppnt = elf_phdata;
+
+    elf_bss = 0;
+    elf_brk = 0;
+
+
+    elf_stack = ~0UL;
+    elf_interpreter = NULL;
+    start_code = ~0UL;
+    end_code = 0;
+    end_data = 0;
+
+    for(i=0;i < elf_ex.e_phnum; i++) {
+	if (elf_ppnt->p_type == PT_INTERP) {
+	    if ( elf_interpreter != NULL )
+	    {
+		free (elf_phdata);
+		free(elf_interpreter);
+		close(bprm->fd);
+		return -EINVAL;
+	    }
+
+	    /* This is the program interpreter used for
+	     * shared libraries - for now assume that this
+	     * is an a.out format binary
+	     */
+
+	    elf_interpreter = (char *)malloc(elf_ppnt->p_filesz+strlen(X86_DEFAULT_LIB_DIR));
+
+	    if (elf_interpreter == NULL) {
+		free (elf_phdata);
+		close(bprm->fd);
+		return -ENOMEM;
+	    }
+
+	    strcpy(elf_interpreter, X86_DEFAULT_LIB_DIR);
+	    retval = lseek(bprm->fd, elf_ppnt->p_offset, SEEK_SET);
+	    if(retval >= 0) {
+		retval = read(bprm->fd, 
+			      elf_interpreter+strlen(X86_DEFAULT_LIB_DIR), 
+			      elf_ppnt->p_filesz);
+	    }
+	    if(retval < 0) {
+	 	perror("load_elf_binary2");
+		exit(-1);
+	    }	
+
+	    /* If the program interpreter is one of these two,
+	       then assume an iBCS2 image. Otherwise assume
+	       a native linux image. */
+
+	    /* JRP - Need to add X86 lib dir stuff here... */
+
+	    if (strcmp(elf_interpreter,"/usr/lib/libc.so.1") == 0 ||
+		strcmp(elf_interpreter,"/usr/lib/ld.so.1") == 0) {
+	      ibcs2_interpreter = 1;
+	    }
+
+#if 0
+	    printf("Using ELF interpreter %s\n", elf_interpreter);
+#endif
+	    if (retval >= 0) {
+		retval = open(elf_interpreter, O_RDONLY);
+		if(retval >= 0) {
+		    interpreter_fd = retval;
+		}
+		else {
+		    perror(elf_interpreter);
+		    exit(-1);
+		    /* retval = -errno; */
+		}
+	    }
+
+	    if (retval >= 0) {
+		retval = lseek(interpreter_fd, 0, SEEK_SET);
+		if(retval >= 0) {
+		    retval = read(interpreter_fd,bprm->buf,128);
+		}
+	    }
+	    if (retval >= 0) {
+		interp_ex = *((struct exec *) bprm->buf); /* aout exec-header */
+		interp_elf_ex=*((struct elfhdr *) bprm->buf); /* elf exec-header */
+	    }
+	    if (retval < 0) {
+		perror("load_elf_binary3");
+		exit(-1);
+		free (elf_phdata);
+		free(elf_interpreter);
+		close(bprm->fd);
+		return retval;
+	    }
+	}
+	elf_ppnt++;
+    }
+
+    /* Some simple consistency checks for the interpreter */
+    if (elf_interpreter){
+	interpreter_type = INTERPRETER_ELF | INTERPRETER_AOUT;
+
+	/* Now figure out which format our binary is */
+	if ((N_MAGIC(interp_ex) != OMAGIC) && (N_MAGIC(interp_ex) != ZMAGIC) &&
+	    	(N_MAGIC(interp_ex) != QMAGIC)) {
+	  interpreter_type = INTERPRETER_ELF;
+	}
+
+	if (interp_elf_ex.e_ident[0] != 0x7f ||
+	    	strncmp(&interp_elf_ex.e_ident[1], "ELF",3) != 0) {
+	    interpreter_type &= ~INTERPRETER_ELF;
+	}
+
+	if (!interpreter_type) {
+	    free(elf_interpreter);
+	    free(elf_phdata);
+	    close(bprm->fd);
+	    return -ELIBBAD;
+	}
+    }
+
+    /* OK, we are done with that, now set up the arg stuff,
+       and then start this sucker up */
+
+    if (!bprm->sh_bang) {
+	char * passed_p;
+
+	if (interpreter_type == INTERPRETER_AOUT) {
+	    sprintf(passed_fileno, "%d", bprm->fd);
+	    passed_p = passed_fileno;
+
+	    if (elf_interpreter) {
+		bprm->p = copy_strings(1,&passed_p,bprm->page,bprm->p);
+		bprm->argc++;
+	    }
+	}
+	if (!bprm->p) {
+	    if (elf_interpreter) {
+	        free(elf_interpreter);
+	    }
+	    free (elf_phdata);
+	    close(bprm->fd);
+	    return -E2BIG;
+	}
+    }
+
+    /* OK, This is the point of no return */
+    info->end_data = 0;
+    info->end_code = 0;
+    info->start_mmap = (unsigned long)ELF_START_MMAP;
+    info->mmap = 0;
+    elf_entry = (unsigned long) elf_ex.e_entry;
+
+    /* Do this so that we can load the interpreter, if need be.  We will
+       change some of these later */
+    info->rss = 0;
+    bprm->p = setup_arg_pages(bprm->p, bprm, info);
+    info->start_stack = bprm->p;
+
+    /* Now we do a little grungy work by mmaping the ELF image into
+     * the correct location in memory.  At this point, we assume that
+     * the image should be loaded at fixed address, not at a variable
+     * address.
+     */
+
+
+
+    for(i = 0, elf_ppnt = elf_phdata; i < elf_ex.e_phnum; i++, elf_ppnt++) {
+	if (elf_ppnt->p_type == PT_LOAD) {
+	    int elf_prot = 0;
+	    if (elf_ppnt->p_flags & PF_R) elf_prot |= PROT_READ;
+	    if (elf_ppnt->p_flags & PF_W) elf_prot |= PROT_WRITE;
+	    if (elf_ppnt->p_flags & PF_X) elf_prot |= PROT_EXEC;
+
+	    mapped_addr = mmap4k(X86_ELF_PAGESTART(elf_ppnt->p_vaddr),
+		    (elf_ppnt->p_filesz +
+			    X86_ELF_PAGEOFFSET(elf_ppnt->p_vaddr)),
+		    elf_prot,
+		    (MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE),
+		    bprm->fd,
+		    (elf_ppnt->p_offset - 
+			    X86_ELF_PAGEOFFSET(elf_ppnt->p_vaddr)));
+
+	    if((unsigned long)mapped_addr == 0xffffffffffffffff) {
+		perror("mmap");
+		exit(-1);
+	    }
+
+
+
+#ifdef LOW_ELF_STACK
+	    if (X86_ELF_PAGESTART(elf_ppnt->p_vaddr) < elf_stack)
+		    elf_stack = X86_ELF_PAGESTART(elf_ppnt->p_vaddr);
+#endif
+
+	    if (!load_addr_set) {
+	        load_addr = elf_ppnt->p_vaddr - elf_ppnt->p_offset;
+	        load_addr_set = 1;
+	    }
+	    k = elf_ppnt->p_vaddr;
+	    if (k < start_code) start_code = k;
+	    k = elf_ppnt->p_vaddr + elf_ppnt->p_filesz;
+	    if (k > elf_bss) elf_bss = k;
+#if 1
+	    if ((elf_ppnt->p_flags & PF_X) && end_code <  k)
+#else
+	    if ( !(elf_ppnt->p_flags & PF_W) && end_code <  k)
+#endif
+		    end_code = k;
+	    if (end_data < k) end_data = k;
+	    k = elf_ppnt->p_vaddr + elf_ppnt->p_memsz;
+	    if (k > elf_brk) elf_brk = k;
+	}
+    }
+
+    if (elf_interpreter) {
+	if (interpreter_type & 1) {
+	    elf_entry = load_aout_interp(&interp_ex, interpreter_fd);
+	}
+	else if (interpreter_type & 2) {
+	    elf_entry = load_elf_interp(&interp_elf_ex, interpreter_fd,
+					    &interp_load_addr);
+	}
+
+	close(interpreter_fd);
+	free(elf_interpreter);
+
+	if (elf_entry == ~0UL) {
+	    printf("Unable to load interpreter\n");
+	    free(elf_phdata);
+	    exit(-1);
+	    return 0;
+	}
+    }
+
+    free(elf_phdata);
+
+    if (interpreter_type != INTERPRETER_AOUT) close(bprm->fd);
+    info->personality = (ibcs2_interpreter ? PER_SVR4 : PER_LINUX);
+
+#ifdef LOW_ELF_STACK
+    info->start_stack = bprm->p = elf_stack - 4;
+#endif
+    bprm->p = (unsigned long)
+      create_elf_tables((char *)bprm->p,
+		    bprm->argc,
+		    bprm->envc,
+		    (interpreter_type == INTERPRETER_ELF ? &elf_ex : NULL),
+		    load_addr,
+		    interp_load_addr,
+		    (interpreter_type == INTERPRETER_AOUT ? 0 : 1),
+		    info);
+    if (interpreter_type == INTERPRETER_AOUT)
+      info->arg_start += strlen(passed_fileno) + 1;
+    info->start_brk = info->brk = elf_brk;
+    info->end_code = end_code;
+    info->start_code = start_code;
+    info->end_data = end_data;
+    info->start_stack = bprm->p;
+
+    /* Calling set_brk effectively mmaps the pages that we need for the bss and break
+       sections */
+    set_brk(elf_bss, elf_brk);
+
+    padzero(elf_bss);
+
+#if 0
+    printf("(start_brk) %x\n" , info->start_brk);
+    printf("(end_code) %x\n" , info->end_code);
+    printf("(start_code) %x\n" , info->start_code);
+    printf("(end_data) %x\n" , info->end_data);
+    printf("(start_stack) %x\n" , info->start_stack);
+    printf("(brk) %x\n" , info->brk);
+#endif
+
+    if ( info->personality == PER_SVR4 )
+    {
+	    /* Why this, you ask???  Well SVr4 maps page 0 as read-only,
+	       and some applications "depend" upon this behavior.
+	       Since we do not have the power to recompile these, we
+	       emulate the SVr4 behavior.  Sigh.  */
+	    mapped_addr = mmap4k(NULL, ALPHA_PAGE_SIZE, PROT_READ | PROT_EXEC,
+			    MAP_FIXED | MAP_PRIVATE, -1, 0);
+    }
+
+#ifdef ELF_PLAT_INIT
+    /*
+     * The ABI may specify that certain registers be set up in special
+     * ways (on i386 %edx is the address of a DT_FINI function, for
+     * example.  This macro performs whatever initialization to
+     * the regs structure is required.
+     */
+    ELF_PLAT_INIT(regs);
+#endif
+
+
+    info->entry = elf_entry;
+
+    return 0;
+}
+
+
+
+int elf_exec(const char * filename, char ** argv, char ** envp, 
+		struct pt_regs * regs, struct image_info *infop)
+{
+        struct linux_binprm bprm;
+        int retval;
+        int i;
+
+        bprm.p = X86_PAGE_SIZE*MAX_ARG_PAGES-sizeof(unsigned int);
+        for (i=0 ; i<MAX_ARG_PAGES ; i++)       /* clear page-table */
+                bprm.page[i] = 0;
+        retval = open(filename, O_RDONLY);
+        if (retval == -1) {
+	    perror(filename);
+	    exit(-1);
+            /* return retval; */
+	}
+	else {
+	    bprm.fd = retval;
+	}
+        bprm.filename = (char *)filename;
+        bprm.sh_bang = 0;
+        bprm.loader = 0;
+        bprm.exec = 0;
+        bprm.dont_iput = 0;
+	bprm.argc = count(argv);
+	bprm.envc = count(envp);
+
+        retval = prepare_binprm(&bprm);
+
+        if(retval>=0) {
+	    bprm.p = copy_strings(1, &bprm.filename, bprm.page, bprm.p);
+	    bprm.exec = bprm.p;
+	    bprm.p = copy_strings(bprm.envc,envp,bprm.page,bprm.p);
+	    bprm.p = copy_strings(bprm.argc,argv,bprm.page,bprm.p);
+	    if (!bprm.p) {
+		retval = -E2BIG;
+	    }
+        }
+
+        if(retval>=0) {
+	    retval = load_elf_binary(&bprm,regs,infop);
+	}
+        if(retval>=0) {
+	    /* success.  Initialize important registers */
+	    regs->esp = infop->start_stack;
+	    regs->eip = infop->entry;
+	    return retval;
+	}
+
+        /* Something went wrong, return the inode and free the argument pages*/
+        for (i=0 ; i<MAX_ARG_PAGES ; i++) {
+	    free_page((void *)bprm.page[i]);
+	}
+        return(retval);
+}
+
+
+static int load_aout_interp(void * exptr, int interp_fd)
+{
+    printf("a.out interpreter not yet supported\n");
+    return(0);
+}
+
diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
new file mode 100644
index 0000000..49deb09
--- /dev/null
+++ b/linux-user/ioctls.h
@@ -0,0 +1,282 @@
+     /* emulated ioctl list */
+
+     IOCTL(TCGETS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_termios)))
+     IOCTL(TCGETS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_termios)))
+     IOCTL(TCSETSF, IOC_W, MK_PTR(MK_STRUCT(STRUCT_termios)))
+     IOCTL(TCSETSW, IOC_W, MK_PTR(MK_STRUCT(STRUCT_termios)))
+     IOCTL(TIOCGWINSZ, IOC_R, MK_PTR(MK_STRUCT(STRUCT_winsize)))
+     IOCTL(TIOCSWINSZ, IOC_W, MK_PTR(MK_STRUCT(STRUCT_winsize)))
+     IOCTL(FIONREAD, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TCGETA, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TCSETA, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TCSETAW, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TCSETAF, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TCSBRK, 0, TYPE_INT)
+     IOCTL(TCSBRKP, 0, TYPE_INT)
+     IOCTL(TCXONC, 0, TYPE_INT)
+     IOCTL(TCFLSH, 0, TYPE_INT)
+     IOCTL(TIOCEXCL, 0, TYPE_NULL)
+     IOCTL(TIOCNXCL, 0, TYPE_NULL)
+     IOCTL(TIOCSCTTY, 0, TYPE_INT)
+     IOCTL(TIOCGPGRP, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TIOCSPGRP, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCOUTQ, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TIOCSTI, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCMGET, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TIOCMBIS, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCMBIC, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCMSET, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCGSOFTCAR, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TIOCSSOFTCAR, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCLINUX, IOC_R | IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCCONS, 0, TYPE_NULL)
+     IOCTL(TIOCGSERIAL, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TIOCSSERIAL, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCPKT, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(FIONBIO, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCNOTTY, 0, TYPE_NULL)
+     IOCTL(TIOCGETD, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TIOCSETD, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(FIOCLEX, 0, TYPE_NULL)
+     IOCTL(FIONCLEX, 0, TYPE_NULL)
+     IOCTL(FIOASYNC, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(TIOCGLCKTRMIOS, IOC_R, MK_PTR(MK_STRUCT(STRUCT_termios)))
+     IOCTL(TIOCSLCKTRMIOS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_termios)))
+     IOCTL(TIOCSERCONFIG, 0, TYPE_NULL)
+     IOCTL(TIOCSERGETLSR, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(TIOCSERGETMULTI, IOC_R, MK_PTR(MK_STRUCT(STRUCT_serial_multiport_struct)))
+     IOCTL(TIOCSERSETMULTI, IOC_W, MK_PTR(MK_STRUCT(STRUCT_serial_multiport_struct)))
+     IOCTL(TIOCMIWAIT, 0, TYPE_INT)
+     IOCTL(TIOCGICOUNT, IOC_R, MK_PTR(MK_STRUCT(STRUCT_serial_icounter_struct)))
+
+     IOCTL(BLKROSET, IOC_W, MK_PTR(TYPE_INT))
+     IOCTL(BLKROGET, IOC_R, MK_PTR(TYPE_INT))
+     IOCTL(BLKRRPART, 0, TYPE_NULL)
+     IOCTL(BLKGETSIZE, IOC_R, MK_PTR(TYPE_ULONG))
+#ifdef BLKGETSIZE64
+     IOCTL(BLKGETSIZE64, IOC_R, MK_PTR(TYPE_ULONGLONG))
+#endif
+     IOCTL(BLKFLSBUF, 0, TYPE_NULL)
+     IOCTL(BLKRASET, 0, TYPE_INT)
+     IOCTL(BLKRAGET, IOC_R, MK_PTR(TYPE_LONG))
+#ifdef FIBMAP
+     IOCTL(FIBMAP, IOC_W | IOC_R, MK_PTR(TYPE_LONG))
+#endif
+#ifdef FIGETBSZ
+     IOCTL(FIGETBSZ, IOC_R, MK_PTR(TYPE_LONG))
+#endif
+
+  IOCTL(SIOCADDRT, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtentry)))
+  IOCTL(SIOCDELRT, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtentry)))
+  IOCTL(SIOCGIFNAME, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SIOCGIFFLAGS, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_short_ifreq)))
+  IOCTL(SIOCSIFFLAGS, IOC_W, MK_PTR(MK_STRUCT(STRUCT_short_ifreq)))
+  IOCTL(SIOCGIFADDR, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCSIFADDR, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCGIFBRDADDR, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCSIFBRDADDR, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCGIFDSTADDR, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCSIFDSTADDR, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCGIFNETMASK, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCSIFNETMASK, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCGIFHWADDR, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCSIFHWADDR, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCGIFTXQLEN, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCSIFTXQLEN, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCGIFMETRIC, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_int_ifreq)))
+  IOCTL(SIOCSIFMETRIC, IOC_W, MK_PTR(MK_STRUCT(STRUCT_int_ifreq)))
+  IOCTL(SIOCGIFMTU, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_int_ifreq)))
+  IOCTL(SIOCSIFMTU, IOC_W, MK_PTR(MK_STRUCT(STRUCT_int_ifreq)))
+  IOCTL(SIOCGIFMAP, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_ifmap_ifreq)))
+  IOCTL(SIOCSIFMAP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_ifmap_ifreq)))
+  IOCTL(SIOCGIFSLAVE, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_char_ifreq)))
+  IOCTL(SIOCSIFSLAVE, IOC_W, MK_PTR(MK_STRUCT(STRUCT_char_ifreq)))
+  IOCTL(SIOCGIFMEM, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_ptr_ifreq)))
+  IOCTL(SIOCSIFMEM, IOC_W, MK_PTR(MK_STRUCT(STRUCT_ptr_ifreq)))
+  IOCTL(SIOCADDMULTI, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCDELMULTI, IOC_W, MK_PTR(MK_STRUCT(STRUCT_sockaddr_ifreq)))
+  IOCTL(SIOCSIFLINK, 0, TYPE_NULL)
+  IOCTL(SIOCGIFCONF, IOC_W | IOC_R, MK_PTR(MK_STRUCT(STRUCT_ifconf)))
+  IOCTL(SIOCGIFENCAP, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SIOCSIFENCAP, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SIOCDARP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
+  IOCTL(SIOCSARP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
+  IOCTL(SIOCGARP, IOC_R, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
+  IOCTL(SIOCDRARP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
+  IOCTL(SIOCSRARP, IOC_W, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
+  IOCTL(SIOCGRARP, IOC_R, MK_PTR(MK_STRUCT(STRUCT_arpreq)))
+
+  IOCTL(CDROMPAUSE, 0, TYPE_NULL)
+  IOCTL(CDROMSTART, 0, TYPE_NULL)
+  IOCTL(CDROMSTOP, 0, TYPE_NULL)
+  IOCTL(CDROMRESUME, 0, TYPE_NULL)
+  IOCTL(CDROMEJECT, 0, TYPE_NULL)
+  IOCTL(CDROMEJECT_SW, 0, TYPE_INT)
+  IOCTL(CDROMCLOSETRAY, 0, TYPE_NULL)
+  IOCTL(CDROMRESET, 0, TYPE_NULL)
+  IOCTL(CDROMPLAYMSF, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(CDROMPLAYTRKIND, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(CDROMREADTOCHDR, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(CDROMREADTOCENTRY, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(CDROMVOLCTRL, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(CDROMSUBCHNL, IOC_RW, MK_PTR(TYPE_INT))
+  /* XXX: incorrect (need specific handling) */
+  IOCTL(CDROMREADAUDIO, IOC_W, MK_PTR(MK_STRUCT(STRUCT_cdrom_read_audio)))
+  IOCTL(CDROMREADCOOKED, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(CDROMREADRAW, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(CDROMREADMODE1, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(CDROMREADMODE2, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(CDROMREADALL, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(CDROMMULTISESSION, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(CDROM_GET_UPC, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(CDROMVOLREAD, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(CDROMSEEK, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(CDROMPLAYBLK, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(CDROM_MEDIA_CHANGED, 0, TYPE_NULL)
+  IOCTL(CDROM_SET_OPTIONS, 0, TYPE_INT)
+  IOCTL(CDROM_CLEAR_OPTIONS, 0, TYPE_INT)
+  IOCTL(CDROM_SELECT_SPEED, 0, TYPE_INT)
+  IOCTL(CDROM_SELECT_DISC, 0, TYPE_INT)
+  IOCTL(CDROM_DRIVE_STATUS, 0, TYPE_NULL)
+  IOCTL(CDROM_DISC_STATUS, 0, TYPE_NULL)
+  IOCTL(CDROMAUDIOBUFSIZ, 0, TYPE_INT)
+
+  IOCTL(SNDCTL_COPR_HALT, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_COPR_LOAD, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_COPR_RCODE, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_COPR_RCVMSG, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_COPR_RDATA, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_COPR_RESET, 0, TYPE_NULL)
+  IOCTL(SNDCTL_COPR_RUN, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_COPR_SENDMSG, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_COPR_WCODE, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_COPR_WDATA, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_CHANNELS, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_GETBLKSIZE, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_GETCAPS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_GETFMTS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_GETIPTR, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_GETISPACE, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_GETOPTR, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_GETOSPACE, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_GETTRIGGER, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_MAPINBUF, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_MAPOUTBUF, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_NONBLOCK, 0, TYPE_NULL)
+  IOCTL(SNDCTL_DSP_POST, 0, TYPE_NULL)
+  IOCTL(SNDCTL_DSP_RESET, 0, TYPE_NULL)
+  IOCTL(SNDCTL_DSP_SETDUPLEX, 0, TYPE_NULL)
+  IOCTL(SNDCTL_DSP_SETFMT, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_SETFRAGMENT, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_SETSYNCRO, 0, TYPE_NULL)
+  IOCTL(SNDCTL_DSP_SETTRIGGER, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_SPEED, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_STEREO, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_SUBDIVIDE, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_DSP_SYNC, 0, TYPE_NULL)
+  IOCTL(SNDCTL_FM_4OP_ENABLE, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_FM_LOAD_INSTR, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_MIDI_INFO, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_MIDI_MPUCMD, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_MIDI_MPUMODE, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_MIDI_PRETIME, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_CTRLRATE, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_GETINCOUNT, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_GETOUTCOUNT, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_NRMIDIS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_NRSYNTHS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_OUTOFBAND, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_PANIC, 0, TYPE_NULL)
+  IOCTL(SNDCTL_SEQ_PERCMODE, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_RESET, 0, TYPE_NULL)
+  IOCTL(SNDCTL_SEQ_RESETSAMPLES, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_SYNC, 0, TYPE_NULL)
+  IOCTL(SNDCTL_SEQ_TESTMIDI, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SEQ_THRESHOLD, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SYNTH_INFO, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_SYNTH_MEMAVL, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_TMR_CONTINUE, 0, TYPE_NULL)
+  IOCTL(SNDCTL_TMR_METRONOME, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_TMR_SELECT, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_TMR_SOURCE, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_TMR_START, 0, TYPE_NULL)
+  IOCTL(SNDCTL_TMR_STOP, 0, TYPE_NULL)
+  IOCTL(SNDCTL_TMR_TEMPO, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SNDCTL_TMR_TIMEBASE, IOC_RW, MK_PTR(TYPE_INT))
+
+  IOCTL(SOUND_PCM_WRITE_FILTER, IOC_W | IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_PCM_READ_RATE, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_PCM_READ_CHANNELS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_PCM_READ_BITS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_PCM_READ_FILTER, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_INFO, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_ACCESS, 0, TYPE_PTRVOID)
+  IOCTL(SOUND_MIXER_PRIVATE1, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_PRIVATE2, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_PRIVATE3, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_PRIVATE4, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_PRIVATE5, IOC_RW, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_VOLUME, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_BASS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_TREBLE, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_SYNTH, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_PCM, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_SPEAKER, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_LINE, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_MIC, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_CD, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_IMIX, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_ALTPCM, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_RECLEV, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_IGAIN, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_OGAIN, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_LINE1, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_LINE2, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_LINE3, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_MUTE, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_ENHANCE, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_LOUD, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_RECSRC, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_DEVMASK, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_RECMASK, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_STEREODEVS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_READ_CAPS, IOC_R, MK_PTR(TYPE_INT))
+
+  IOCTL(SOUND_MIXER_WRITE_VOLUME, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_BASS, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_TREBLE, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_SYNTH, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_PCM, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_SPEAKER, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_LINE, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_MIC, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_CD, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_IMIX, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_ALTPCM, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_RECLEV, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_IGAIN, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_OGAIN, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_LINE1, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_LINE2, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_LINE3, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_MUTE, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_ENHANCE, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_LOUD, IOC_W, MK_PTR(TYPE_INT))
+  IOCTL(SOUND_MIXER_WRITE_RECSRC, IOC_W, MK_PTR(TYPE_INT))
+
+  IOCTL(HDIO_GETGEO, IOC_R, MK_PTR(MK_STRUCT(STRUCT_hd_geometry)))
+  IOCTL(HDIO_GET_UNMASKINTR, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(HDIO_GET_MULTCOUNT, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(HDIO_GET_IDENTITY, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(HDIO_GET_KEEPSETTINGS, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(HDIO_GET_NOWERR, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(HDIO_GET_DMA, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(HDIO_GET_32BIT, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(HDIO_DRIVE_CMD, IOC_R, MK_PTR(TYPE_INT))
+  IOCTL(HDIO_SET_UNMASKINTR, 0, TYPE_INT)
+  IOCTL(HDIO_SET_MULTCOUNT, 0, TYPE_INT)
+  IOCTL(HDIO_SET_KEEPSETTINGS, 0, TYPE_INT)
+  IOCTL(HDIO_SET_NOWERR, 0, TYPE_INT)
+  IOCTL(HDIO_SET_DMA, 0, TYPE_INT)
+  IOCTL(HDIO_SET_32BIT, 0, TYPE_INT)
+  IOCTL(HDIO_SET_PIO_MODE, 0, TYPE_INT)
diff --git a/linux-user/main.c b/linux-user/main.c
new file mode 100644
index 0000000..e395083
--- /dev/null
+++ b/linux-user/main.c
@@ -0,0 +1,310 @@
+/*
+ *  emu main
+ * 
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <elf.h>
+#include <endian.h>
+#include <errno.h>
+
+#include "gemu.h"
+
+#include "i386/hsw_interp.h"
+
+unsigned long x86_stack_size;
+unsigned long stktop;
+
+void gemu_log(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    vfprintf(stderr, fmt, ap);
+    va_end(ap);
+}
+
+/* virtual x86 CPU stuff */
+
+extern int invoke_code16(Interp_ENV *, int, int);
+extern int invoke_code32(Interp_ENV *, int);
+extern char *e_print_cpuemu_regs(ENVPARAMS, int is32);
+extern char *e_emu_disasm(ENVPARAMS, unsigned char *org, int is32);
+extern void init_npu(void);
+
+Interp_ENV env_global;
+Interp_ENV *envp_global;
+
+QWORD EMUtime = 0;
+
+int CEmuStat = 0;
+
+long instr_count;
+
+/* who will initialize this? */
+unsigned long io_bitmap[IO_BITMAP_SIZE+1];
+
+/* debug flag, 0=disable 1..9=level */
+int d_emu = 0;
+
+unsigned long CRs[5] =
+{
+	0x00000013,	/* valid bits: 0xe005003f */
+	0x00000000,	/* invalid */
+	0x00000000,
+	0x00000000,
+	0x00000000
+};
+
+/*
+ * DR0-3 = linear address of breakpoint 0-3
+ * DR4=5 = reserved
+ * DR6	b0-b3 = BP active
+ *	b13   = BD
+ *	b14   = BS
+ *	b15   = BT
+ * DR7	b0-b1 = G:L bp#0
+ *	b2-b3 = G:L bp#1
+ *	b4-b5 = G:L bp#2
+ *	b6-b7 = G:L bp#3
+ *	b8-b9 = GE:LE
+ *	b13   = GD
+ *	b16-19= LLRW bp#0	LL=00(1),01(2),11(4)
+ *	b20-23= LLRW bp#1	RW=00(x),01(w),11(rw)
+ *	b24-27= LLRW bp#2
+ *	b28-31= LLRW bp#3
+ */
+unsigned long DRs[8] =
+{
+	0x00000000,
+	0x00000000,
+	0x00000000,
+	0x00000000,
+	0xffff1ff0,
+	0x00000400,
+	0xffff1ff0,
+	0x00000400
+};
+
+unsigned long TRs[2] =
+{
+	0x00000000,
+	0x00000000
+};
+
+void FatalAppExit(UINT wAction, LPCSTR lpText)
+{
+    fprintf(stderr, "Fatal error '%s' in CPU\n", lpText);
+    exit(1);
+}
+
+int e_debug_check(unsigned char *PC)
+{
+    register unsigned long d7 = DRs[7];
+
+    if (d7&0x03) {
+	if (d7&0x30000) return 0;	/* only execute(00) bkp */
+	if ((long)PC==DRs[0]) {
+	    e_printf("DBRK: DR0 hit at %p\n",PC);
+	    DRs[6] |= 1;
+	    return 1;
+	}
+    }
+    if (d7&0x0c) {
+	if (d7&0x300000) return 0;
+	if ((long)PC==DRs[1]) {
+	    e_printf("DBRK: DR1 hit at %p\n",PC);
+	    DRs[6] |= 2;
+	    return 1;
+	}
+    }
+    if (d7&0x30) {
+	if (d7&0x3000000) return 0;
+	if ((long)PC==DRs[2]) {
+	    e_printf("DBRK: DR2 hit at %p\n",PC);
+	    DRs[6] |= 4;
+	    return 1;
+	}
+    }
+    if (d7&0xc0) {
+	if (d7&0x30000000) return 0;
+	if ((long)PC==DRs[3]) {
+	    e_printf("DBRK: DR3 hit at %p\n",PC);
+	    DRs[6] |= 8;
+	    return 1;
+	}
+    }
+    return 0;
+}
+
+/* Debug stuff */
+void logstr(unsigned long mask, const char *fmt,...) 
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    vfprintf(stderr, fmt, ap);
+    va_end(ap);
+}
+
+/* unconditional message into debug log and stderr */
+#undef error
+void error(const char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    vfprintf(stderr, fmt, ap);
+    va_end(ap);
+    exit(1);
+}
+
+int PortIO(DWORD port, DWORD value, UINT size, BOOL is_write)
+{
+    fprintf(stderr, "IO: %s port=0x%lx value=0x%lx size=%d",
+            is_write ? "write" : "read", port, value, size);
+    return value;
+}
+
+void LogProcName(WORD wSel, WORD wOff, WORD wAction)
+{
+
+}
+
+void INT_handler(int num, void *env)
+{
+  fprintf(stderr, "EM86: int %d\n", num);
+}
+
+/***********************************************************/
+
+/* XXX: currently we use LDT entries */
+#define __USER_CS	(0x23|4)
+#define __USER_DS	(0x2B|4)
+
+void usage(void)
+{
+    printf("gemu version 0.1, Copyright (c) 2003 Fabrice Bellard\n"
+           "usage: gemu program [arguments...]\n"
+           "Linux x86 emulator\n"
+           );
+    exit(1);
+}
+
+int main(int argc, char **argv)
+{
+    const char *filename;
+    struct pt_regs regs1, *regs = &regs1;
+    struct image_info info1, *info = &info1;
+    Interp_ENV *env;
+
+    if (argc <= 1)
+        usage();
+    
+    filename = argv[1];
+
+    /* Zero out regs */
+    memset(regs, 0, sizeof(struct pt_regs));
+
+    /* Zero out image_info */
+    memset(info, 0, sizeof(struct image_info));
+
+    if(elf_exec(filename, argv+1, __environ, regs, info) != 0) {
+	printf("Error loading %s\n", filename);
+	exit(1);
+    }
+    
+#if 0
+    printf("start_brk   0x%08lx\n" , info->start_brk);
+    printf("end_code    0x%08lx\n" , info->end_code);
+    printf("start_code  0x%08lx\n" , info->start_code);
+    printf("end_data    0x%08lx\n" , info->end_data);
+    printf("start_stack 0x%08lx\n" , info->start_stack);
+    printf("brk         0x%08lx\n" , info->brk);
+    printf("esp         0x%08lx\n" , regs->esp);
+    printf("eip         0x%08lx\n" , regs->eip);
+#endif
+
+    target_set_brk((char *)info->brk);
+    syscall_init();
+
+    env = &env_global;
+    envp_global = env;
+    memset(env, 0, sizeof(Interp_ENV));
+
+    env->rax.e   = regs->eax;
+    env->rbx.e   = regs->ebx;
+    env->rcx.e   = regs->ecx;
+    env->rdx.e   = regs->edx;
+    env->rsi.esi = regs->esi;
+    env->rdi.edi = regs->edi;
+    env->rbp.ebp = regs->ebp;
+    env->rsp.esp = regs->esp;
+    env->cs.cs   = __USER_CS;
+    env->ds.ds   = __USER_DS;
+    env->es.es   = __USER_DS;
+    env->ss.ss   = __USER_DS;
+    env->fs.fs   = __USER_DS;
+    env->gs.gs   = __USER_DS;
+    env->trans_addr = regs->eip;
+
+    LDT[__USER_CS >> 3].w86Flags = DF_PRESENT | DF_PAGES | DF_32;
+    LDT[__USER_CS >> 3].dwSelLimit = 0xfffff;
+    LDT[__USER_CS >> 3].lpSelBase = NULL;
+
+    LDT[__USER_DS >> 3].w86Flags = DF_PRESENT | DF_PAGES | DF_32;
+    LDT[__USER_DS >> 3].dwSelLimit = 0xfffff;
+    LDT[__USER_DS >> 3].lpSelBase = NULL;
+    init_npu();
+
+    for(;;) {
+        int err;
+        uint8_t *pc;
+
+        err = invoke_code32(env, -1);
+        env->trans_addr = env->return_addr;
+        pc = env->seg_regs[0] + env->trans_addr;
+        switch(err) {
+        case EXCP0D_GPF:
+            if (pc[0] == 0xcd && pc[1] == 0x80) {
+                /* syscall */
+                env->trans_addr += 2;
+                env->rax.e = do_syscall(env->rax.e, 
+                                        env->rbx.e,
+                                        env->rcx.e,
+                                        env->rdx.e,
+                                        env->rsi.esi,
+                                        env->rdi.edi,
+                                        env->rbp.ebp);
+            } else {
+                goto trap_error;
+            }
+            break;
+        default:
+        trap_error:
+            fprintf(stderr, "GEMU: Unknown error %d, aborting\n", err);
+            d_emu = 9;
+            fprintf(stderr, "%s\n%s\n",
+                    e_print_cpuemu_regs(env, 1), 
+                    e_emu_disasm(env,pc,1));
+            abort();
+        }
+    }
+    return 0;
+}
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
new file mode 100644
index 0000000..fa40d4d
--- /dev/null
+++ b/linux-user/qemu.h
@@ -0,0 +1,57 @@
+#ifndef GEMU_H
+#define GEMU_H
+
+#include "thunk.h"
+
+struct pt_regs {
+	long ebx;
+	long ecx;
+	long edx;
+	long esi;
+	long edi;
+	long ebp;
+	long eax;
+	int  xds;
+	int  xes;
+	long orig_eax;
+	long eip;
+	int  xcs;
+	long eflags;
+	long esp;
+	int  xss;
+};
+
+/* This struct is used to hold certain information about the image.
+ * Basically, it replicates in user space what would be certain
+ * task_struct fields in the kernel
+ */
+struct image_info {
+	unsigned long	start_code;
+	unsigned long	end_code;
+	unsigned long	end_data;
+	unsigned long	start_brk;
+	unsigned long	brk;
+	unsigned long	start_mmap;
+	unsigned long	mmap;
+	unsigned long	rss;
+	unsigned long	start_stack;
+	unsigned long	arg_start;
+	unsigned long	arg_end;
+	unsigned long	env_start;
+	unsigned long	env_end;
+	unsigned long	entry;
+	int		personality;
+};
+
+int elf_exec(const char * filename, char ** argv, char ** envp, 
+             struct pt_regs * regs, struct image_info *infop);
+
+void target_set_brk(char *new_brk);
+void syscall_init(void);
+long do_syscall(int num, long arg1, long arg2, long arg3, 
+                long arg4, long arg5, long arg6);
+void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
+
+
+
+#endif
diff --git a/linux-user/signal.c b/linux-user/signal.c
new file mode 100644
index 0000000..2e0d599
--- /dev/null
+++ b/linux-user/signal.c
@@ -0,0 +1,105 @@
+/*
+ *  Emulation of Linux signal handling
+ * 
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <signal.h>
+#include <sys/ucontext.h>
+
+/* Algorithm strongly inspired from em86 : we queue the signals so
+   that we can handle them at precise points in the emulated code. */
+
+struct emulated_sigaction {
+    struct target_sigaction sa;
+    int nb_pending;
+    struct target_siginfo info;
+};
+
+struct emulated_sigaction sigact_table[NSIG];
+int signal_pending;
+
+static inline int host_to_target_signal(int sig)
+{
+    return sig;
+}
+
+static inline int target_to_host_signal(int sig)
+{
+    return sig;
+}
+
+void signal_init(void)
+{
+    struct sigaction act;
+    int i;
+
+    /* set all host signal handlers */
+    sigemptyset(&act.sa_mask);
+    act.sa_flags = SA_SIGINFO;
+    act.sa_sigaction = host_signal_handler;
+    for(i = 1; i < NSIG; i++) {
+	sigaction(i, &sa, NULL);
+    }
+    
+    memset(sigact_table, 0, sizeof(sigact_table));
+}
+
+static void host_signal_handler(int host_signum, siginfo_t *info, 
+                                void *puc)
+{
+    struct ucontext *uc = puc;
+    int signum;
+    /* get target signal number */
+    signum = host_to_target(host_signum);
+    if (signum >= TARGET_NSIG)
+        return;
+    /* we save the old mask */
+    
+    
+}
+
+
+void process_pending_signals(void)
+{
+    int signum;
+    target_ulong _sa_handler;
+
+    struct emulated_sigaction *esig;
+
+    if (!signal_pending)
+        return;
+
+    esig = sigact_table;
+    for(signum = 1; signum < TARGET_NSIG; signum++) {
+        if (esig->nb_pending != 0)
+            goto handle_signal;
+        esig++;
+    }
+    /* if no signal is pending, just return */
+    signal_pending = 0;
+    return;
+ handle_signal:
+    _sa_handler = esig->sa._sa_handler;
+    if (_sa_handler == TARGET_SIG_DFL) {
+        /* default handling
+    }
+
+
+}
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
new file mode 100644
index 0000000..d5909b2
--- /dev/null
+++ b/linux-user/syscall.c
@@ -0,0 +1,1349 @@
+/*
+ *  Linux syscalls
+ * 
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <elf.h>
+#include <endian.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <sys/resource.h>
+#include <sys/mman.h>
+#include <sys/swap.h>
+#include <signal.h>
+#include <sched.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <sys/user.h>
+
+#define termios host_termios
+#define winsize host_winsize
+#define termio host_termio
+
+#include <linux/termios.h>
+#include <linux/unistd.h>
+#include <linux/utsname.h>
+#include <linux/cdrom.h>
+#include <linux/hdreg.h>
+#include <linux/soundcard.h>
+
+#include "gemu.h"
+
+#define DEBUG
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#define PAGE_MASK ~(PAGE_SIZE - 1)
+#endif
+
+struct dirent {
+        long            d_ino;
+        long            d_off;
+        unsigned short  d_reclen;
+        char            d_name[256]; /* We must not include limits.h! */
+};
+
+#include "syscall_defs.h"
+
+#ifdef TARGET_I386
+#include "syscall-i386.h"
+#endif
+
+#define __NR_sys_uname __NR_uname
+#define __NR_sys_getcwd __NR_getcwd
+#define __NR_sys_statfs __NR_statfs
+#define __NR_sys_fstatfs __NR_fstatfs
+
+_syscall0(int, gettid)
+_syscall1(int,sys_uname,struct new_utsname *,buf)
+_syscall2(int,sys_getcwd,char *,buf,size_t,size)
+_syscall3(int, getdents, uint, fd, struct dirent *, dirp, uint, count);
+_syscall5(int, _llseek,  uint,  fd, ulong, hi, ulong, lo,
+          loff_t *, res, uint, wh);
+_syscall2(int,sys_statfs,const char *,path,struct statfs *,buf)
+_syscall2(int,sys_fstatfs,int,fd,struct statfs *,buf)
+
+static inline long get_errno(long ret)
+{
+    if (ret == -1)
+        return -errno;
+    else
+        return ret;
+}
+
+static inline int is_error(long ret)
+{
+    return (unsigned long)ret >= (unsigned long)(-4096);
+}
+
+static char *target_brk;
+static char *target_original_brk;
+
+void target_set_brk(char *new_brk)
+{
+    target_brk = new_brk;
+    target_original_brk = new_brk;
+}
+
+static long do_brk(char *new_brk)
+{
+    char *brk_page;
+    long mapped_addr;
+    int	new_alloc_size;
+
+    if (!new_brk)
+        return (long)target_brk;
+    if (new_brk < target_original_brk)
+        return -ENOMEM;
+    
+    brk_page = (char *)(((unsigned long)target_brk + PAGE_SIZE - 1) & PAGE_MASK);
+
+    /* If the new brk is less than this, set it and we're done... */
+    if (new_brk < brk_page) {
+	target_brk = new_brk;
+    	return (long)target_brk;
+    }
+
+    /* We need to allocate more memory after the brk... */
+    new_alloc_size = ((new_brk - brk_page + 1)+(PAGE_SIZE-1)) & PAGE_MASK;
+    mapped_addr = get_errno((long)mmap((caddr_t)brk_page, new_alloc_size, 
+                                       PROT_READ|PROT_WRITE,
+                                       MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
+    
+    if (is_error(mapped_addr)) {
+	return mapped_addr;
+    } else {
+	target_brk = new_brk;
+    	return (long)target_brk;
+    }
+}
+
+static inline fd_set *target_to_host_fds(fd_set *fds, 
+                                         target_long *target_fds, int n)
+{
+#if !defined(BSWP_NEEDED) && !defined(WORD_BIGENDIAN)
+    return (fd_set *)target_fds;
+#else
+    int i, b;
+    if (target_fds) {
+        FD_ZERO(fds);
+        for(i = 0;i < n; i++) {
+            b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >>
+                 (i & (TARGET_LONG_BITS - 1))) & 1;
+            if (b)
+                FD_SET(i, fds);
+        }
+        return fds;
+    } else {
+        return NULL;
+    }
+#endif
+}
+
+static inline void host_to_target_fds(target_long *target_fds, 
+                                      fd_set *fds, int n)
+{
+#if !defined(BSWP_NEEDED) && !defined(WORD_BIGENDIAN)
+    /* nothing to do */
+#else
+    int i, nw, j, k;
+    target_long v;
+
+    if (target_fds) {
+        nw = n / TARGET_LONG_BITS;
+        k = 0;
+        for(i = 0;i < nw; i++) {
+            v = 0;
+            for(j = 0; j < TARGET_LONG_BITS; j++) {
+                v |= ((FD_ISSET(k, fds) != 0) << j);
+                k++;
+            }
+            target_fds[i] = tswapl(v);
+        }
+    }
+#endif
+}
+
+/* XXX: incorrect for some archs */
+static void host_to_target_old_sigset(target_ulong *old_sigset, 
+                                      const sigset_t *sigset)
+{
+    *old_sigset = tswap32(*(unsigned long *)sigset & 0xffffffff);
+}
+
+static void target_to_host_old_sigset(sigset_t *sigset, 
+                                      const target_ulong *old_sigset)
+{
+    sigemptyset(sigset);
+    *(unsigned long *)sigset = tswapl(*old_sigset);
+}
+
+
+static long do_select(long n, 
+                      target_long *target_rfds, target_long *target_wfds, 
+                      target_long *target_efds, struct target_timeval *target_tv)
+{
+    fd_set rfds, wfds, efds;
+    fd_set *rfds_ptr, *wfds_ptr, *efds_ptr;
+    struct timeval tv, *tv_ptr;
+    long ret;
+
+    rfds_ptr = target_to_host_fds(&rfds, target_rfds, n);
+    wfds_ptr = target_to_host_fds(&wfds, target_wfds, n);
+    efds_ptr = target_to_host_fds(&efds, target_efds, n);
+            
+    if (target_tv) {
+        tv.tv_sec = tswapl(target_tv->tv_sec);
+        tv.tv_usec = tswapl(target_tv->tv_usec);
+        tv_ptr = &tv;
+    } else {
+        tv_ptr = NULL;
+    }
+    ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr));
+    if (!is_error(ret)) {
+        host_to_target_fds(target_rfds, rfds_ptr, n);
+        host_to_target_fds(target_wfds, wfds_ptr, n);
+        host_to_target_fds(target_efds, efds_ptr, n);
+
+        if (target_tv) {
+            target_tv->tv_sec = tswapl(tv.tv_sec);
+            target_tv->tv_usec = tswapl(tv.tv_usec);
+        }
+    }
+    return ret;
+}
+
+static long do_socketcall(int num, long *vptr)
+{
+    long ret;
+
+    switch(num) {
+    case SOCKOP_socket:
+        ret = get_errno(socket(vptr[0], vptr[1], vptr[2]));
+        break;
+    case SOCKOP_bind:
+        ret = get_errno(bind(vptr[0], (struct sockaddr *)vptr[1], vptr[2]));
+        break;
+    case SOCKOP_connect:
+        ret = get_errno(connect(vptr[0], (struct sockaddr *)vptr[1], vptr[2]));
+        break;
+    case SOCKOP_listen:
+        ret = get_errno(listen(vptr[0], vptr[1]));
+        break;
+    case SOCKOP_accept:
+        {
+            socklen_t size;
+            size = tswap32(*(int32_t *)vptr[2]);
+            ret = get_errno(accept(vptr[0], (struct sockaddr *)vptr[1], &size));
+            if (!is_error(ret)) 
+                *(int32_t *)vptr[2] = size;
+        }
+        break;
+    case SOCKOP_getsockname:
+        {
+            socklen_t size;
+            size = tswap32(*(int32_t *)vptr[2]);
+            ret = get_errno(getsockname(vptr[0], (struct sockaddr *)vptr[1], &size));
+            if (!is_error(ret)) 
+                *(int32_t *)vptr[2] = size;
+        }
+        break;
+    case SOCKOP_getpeername:
+        {
+            socklen_t size;
+            size = tswap32(*(int32_t *)vptr[2]);
+            ret = get_errno(getpeername(vptr[0], (struct sockaddr *)vptr[1], &size));
+            if (!is_error(ret)) 
+                *(int32_t *)vptr[2] = size;
+        }
+        break;
+    case SOCKOP_socketpair:
+        {
+            int tab[2];
+            int32_t *target_tab = (int32_t *)vptr[3];
+            ret = get_errno(socketpair(vptr[0], vptr[1], vptr[2], tab));
+            if (!is_error(ret)) {
+                target_tab[0] = tswap32(tab[0]);
+                target_tab[1] = tswap32(tab[1]);
+            }
+        }
+        break;
+    case SOCKOP_send:
+        ret = get_errno(send(vptr[0], (void *)vptr[1], vptr[2], vptr[3]));
+        break;
+    case SOCKOP_recv:
+        ret = get_errno(recv(vptr[0], (void *)vptr[1], vptr[2], vptr[3]));
+        break;
+    case SOCKOP_sendto:
+        ret = get_errno(sendto(vptr[0], (void *)vptr[1], vptr[2], vptr[3], 
+                               (struct sockaddr *)vptr[4], vptr[5]));
+        break;
+    case SOCKOP_recvfrom:
+        {
+            socklen_t size;
+            size = tswap32(*(int32_t *)vptr[5]);
+            ret = get_errno(recvfrom(vptr[0], (void *)vptr[1], vptr[2], 
+                                     vptr[3], (struct sockaddr *)vptr[4], &size));
+            if (!is_error(ret)) 
+                *(int32_t *)vptr[5] = size;
+        }
+        break;
+    case SOCKOP_shutdown:
+        ret = get_errno(shutdown(vptr[0], vptr[1]));
+        break;
+    case SOCKOP_sendmsg:
+    case SOCKOP_recvmsg:
+    case SOCKOP_setsockopt:
+    case SOCKOP_getsockopt:
+    default:
+        gemu_log("Unsupported socketcall: %d\n", num);
+        ret = -ENOSYS;
+        break;
+    }
+    return ret;
+}
+
+/* kernel structure types definitions */
+#define IFNAMSIZ        16
+
+#define STRUCT(name, list...) STRUCT_ ## name,
+#define STRUCT_SPECIAL(name) STRUCT_ ## name,
+enum {
+#include "syscall_types.h"
+};
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+#define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL };
+#define STRUCT_SPECIAL(name)
+#include "syscall_types.h"
+#undef STRUCT
+#undef STRUCT_SPECIAL
+
+typedef struct IOCTLEntry {
+    int target_cmd;
+    int host_cmd;
+    const char *name;
+    int access;
+    const argtype arg_type[3];
+} IOCTLEntry;
+
+#define IOC_R 0x0001
+#define IOC_W 0x0002
+#define IOC_RW (IOC_R | IOC_W)
+
+#define MAX_STRUCT_SIZE 4096
+
+const IOCTLEntry ioctl_entries[] = {
+#define IOCTL(cmd, access, types...) \
+    { TARGET_ ## cmd, cmd, #cmd, access, { types } },
+#include "ioctls.h"
+    { 0, 0, },
+};
+
+static long do_ioctl(long fd, long cmd, long arg)
+{
+    const IOCTLEntry *ie;
+    const argtype *arg_type;
+    long ret;
+    uint8_t buf_temp[MAX_STRUCT_SIZE];
+
+    ie = ioctl_entries;
+    for(;;) {
+        if (ie->target_cmd == 0) {
+            gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd);
+            return -ENOSYS;
+        }
+        if (ie->target_cmd == cmd)
+            break;
+        ie++;
+    }
+    arg_type = ie->arg_type;
+    //    gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name);
+    switch(arg_type[0]) {
+    case TYPE_NULL:
+        /* no argument */
+        ret = get_errno(ioctl(fd, ie->host_cmd));
+        break;
+    case TYPE_PTRVOID:
+    case TYPE_INT:
+        /* int argment */
+        ret = get_errno(ioctl(fd, ie->host_cmd, arg));
+        break;
+    case TYPE_PTR:
+        arg_type++;
+        switch(ie->access) {
+        case IOC_R:
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            if (!is_error(ret)) {
+                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
+            }
+            break;
+        case IOC_W:
+            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            break;
+        default:
+        case IOC_RW:
+            thunk_convert(buf_temp, (void *)arg, arg_type, THUNK_HOST);
+            ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp));
+            if (!is_error(ret)) {
+                thunk_convert((void *)arg, buf_temp, arg_type, THUNK_TARGET);
+            }
+            break;
+        }
+        break;
+    default:
+        gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]);
+        ret = -ENOSYS;
+        break;
+    }
+    return ret;
+}
+
+bitmask_transtbl iflag_tbl[] = {
+        { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK },
+        { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT },
+        { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR },
+        { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK },
+        { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK },
+        { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP },
+        { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR },
+        { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR },
+        { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL },
+        { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC },
+        { TARGET_IXON, TARGET_IXON, IXON, IXON },
+        { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY },
+        { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF },
+        { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL },
+        { 0, 0, 0, 0 }
+};
+
+bitmask_transtbl oflag_tbl[] = {
+	{ TARGET_OPOST, TARGET_OPOST, OPOST, OPOST },
+	{ TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC },
+	{ TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR },
+	{ TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL },
+	{ TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR },
+	{ TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET },
+	{ TARGET_OFILL, TARGET_OFILL, OFILL, OFILL },
+	{ TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL },
+	{ TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 },
+	{ TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 },
+	{ TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 },
+	{ TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 },
+	{ TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 },
+	{ TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 },
+	{ TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 },
+	{ TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 },
+	{ TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 },
+	{ TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 },
+	{ TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 },
+	{ TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 },
+	{ TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 },
+	{ TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 },
+	{ TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 },
+	{ TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 },
+	{ 0, 0, 0, 0 }
+};
+
+bitmask_transtbl cflag_tbl[] = {
+	{ TARGET_CBAUD, TARGET_B0, CBAUD, B0 },
+	{ TARGET_CBAUD, TARGET_B50, CBAUD, B50 },
+	{ TARGET_CBAUD, TARGET_B75, CBAUD, B75 },
+	{ TARGET_CBAUD, TARGET_B110, CBAUD, B110 },
+	{ TARGET_CBAUD, TARGET_B134, CBAUD, B134 },
+	{ TARGET_CBAUD, TARGET_B150, CBAUD, B150 },
+	{ TARGET_CBAUD, TARGET_B200, CBAUD, B200 },
+	{ TARGET_CBAUD, TARGET_B300, CBAUD, B300 },
+	{ TARGET_CBAUD, TARGET_B600, CBAUD, B600 },
+	{ TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 },
+	{ TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 },
+	{ TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 },
+	{ TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 },
+	{ TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 },
+	{ TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 },
+	{ TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 },
+	{ TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 },
+	{ TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 },
+	{ TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 },
+	{ TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 },
+	{ TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 },
+	{ TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 },
+	{ TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 },
+	{ TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 },
+	{ TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB },
+	{ TARGET_CREAD, TARGET_CREAD, CREAD, CREAD },
+	{ TARGET_PARENB, TARGET_PARENB, PARENB, PARENB },
+	{ TARGET_PARODD, TARGET_PARODD, PARODD, PARODD },
+	{ TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL },
+	{ TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL },
+	{ TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS },
+	{ 0, 0, 0, 0 }
+};
+
+bitmask_transtbl lflag_tbl[] = {
+	{ TARGET_ISIG, TARGET_ISIG, ISIG, ISIG },
+	{ TARGET_ICANON, TARGET_ICANON, ICANON, ICANON },
+	{ TARGET_XCASE, TARGET_XCASE, XCASE, XCASE },
+	{ TARGET_ECHO, TARGET_ECHO, ECHO, ECHO },
+	{ TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE },
+	{ TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK },
+	{ TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL },
+	{ TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH },
+	{ TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP },
+	{ TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL },
+	{ TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT },
+	{ TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE },
+	{ TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO },
+	{ TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN },
+	{ TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN },
+	{ 0, 0, 0, 0 }
+};
+
+static void target_to_host_termios (void *dst, const void *src)
+{
+    struct host_termios *host = dst;
+    const struct target_termios *target = src;
+    
+    host->c_iflag = 
+        target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl);
+    host->c_oflag = 
+        target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl);
+    host->c_cflag = 
+        target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl);
+    host->c_lflag = 
+        target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl);
+    host->c_line = target->c_line;
+    
+    host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 
+    host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 
+    host->c_cc[VERASE] = target->c_cc[TARGET_VERASE];       
+    host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 
+    host->c_cc[VEOF] = target->c_cc[TARGET_VEOF];   
+    host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 
+    host->c_cc[VMIN] = target->c_cc[TARGET_VMIN];   
+    host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 
+    host->c_cc[VSTART] = target->c_cc[TARGET_VSTART];       
+    host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 
+    host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 
+    host->c_cc[VEOL] = target->c_cc[TARGET_VEOL];   
+    host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT];   
+    host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD];   
+    host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE];     
+    host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT];       
+    host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 
+}
+  
+static void host_to_target_termios (void *dst, const void *src)
+{
+    struct target_termios *target = dst;
+    const struct host_termios *host = src;
+
+    target->c_iflag = 
+        tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl));
+    target->c_oflag = 
+        tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl));
+    target->c_cflag = 
+        tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl));
+    target->c_lflag = 
+        tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl));
+    target->c_line = host->c_line;
+  
+    target->c_cc[TARGET_VINTR] = host->c_cc[VINTR];
+    target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT];
+    target->c_cc[TARGET_VERASE] = host->c_cc[VERASE];
+    target->c_cc[TARGET_VKILL] = host->c_cc[VKILL];
+    target->c_cc[TARGET_VEOF] = host->c_cc[VEOF];
+    target->c_cc[TARGET_VTIME] = host->c_cc[VTIME];
+    target->c_cc[TARGET_VMIN] = host->c_cc[VMIN];
+    target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC];
+    target->c_cc[TARGET_VSTART] = host->c_cc[VSTART];
+    target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP];
+    target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP];
+    target->c_cc[TARGET_VEOL] = host->c_cc[VEOL];
+    target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT];
+    target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD];
+    target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE];
+    target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT];
+    target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2];
+}
+
+StructEntry struct_termios_def = {
+    .convert = { host_to_target_termios, target_to_host_termios },
+    .size = { sizeof(struct target_termios), sizeof(struct host_termios) },
+    .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) },
+};
+
+void syscall_init(void)
+{
+#define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 
+#define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 
+#include "syscall_types.h"
+#undef STRUCT
+#undef STRUCT_SPECIAL
+}
+                                 
+long do_syscall(int num, long arg1, long arg2, long arg3, 
+                long arg4, long arg5, long arg6)
+{
+    long ret;
+    struct stat st;
+    struct statfs *stfs;
+    
+    //    gemu_log("syscall %d\n", num);
+    switch(num) {
+    case TARGET_NR_exit:
+        _exit(arg1);
+        ret = 0; /* avoid warning */
+        break;
+    case TARGET_NR_read:
+        ret = get_errno(read(arg1, (void *)arg2, arg3));
+        break;
+    case TARGET_NR_write:
+        ret = get_errno(write(arg1, (void *)arg2, arg3));
+        break;
+    case TARGET_NR_open:
+        ret = get_errno(open((const char *)arg1, arg2, arg3));
+        break;
+    case TARGET_NR_close:
+        ret = get_errno(close(arg1));
+        break;
+    case TARGET_NR_brk:
+        ret = do_brk((char *)arg1);
+        break;
+    case TARGET_NR_fork:
+        ret = get_errno(fork());
+        break;
+    case TARGET_NR_waitpid:
+        {
+            int *status = (int *)arg2;
+            ret = get_errno(waitpid(arg1, status, arg3));
+            if (!is_error(ret) && status)
+                tswapls((long *)&status);
+        }
+        break;
+    case TARGET_NR_creat:
+        ret = get_errno(creat((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_link:
+        ret = get_errno(link((const char *)arg1, (const char *)arg2));
+        break;
+    case TARGET_NR_unlink:
+        ret = get_errno(unlink((const char *)arg1));
+        break;
+    case TARGET_NR_execve:
+        ret = get_errno(execve((const char *)arg1, (void *)arg2, (void *)arg3));
+        break;
+    case TARGET_NR_chdir:
+        ret = get_errno(chdir((const char *)arg1));
+        break;
+    case TARGET_NR_time:
+        {
+            int *time_ptr = (int *)arg1;
+            ret = get_errno(time((time_t *)time_ptr));
+            if (!is_error(ret) && time_ptr)
+                tswap32s(time_ptr);
+        }
+        break;
+    case TARGET_NR_mknod:
+        ret = get_errno(mknod((const char *)arg1, arg2, arg3));
+        break;
+    case TARGET_NR_chmod:
+        ret = get_errno(chmod((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_lchown:
+        ret = get_errno(chown((const char *)arg1, arg2, arg3));
+        break;
+    case TARGET_NR_break:
+        goto unimplemented;
+    case TARGET_NR_oldstat:
+        goto unimplemented;
+    case TARGET_NR_lseek:
+        ret = get_errno(lseek(arg1, arg2, arg3));
+        break;
+    case TARGET_NR_getpid:
+        ret = get_errno(getpid());
+        break;
+    case TARGET_NR_mount:
+        /* need to look at the data field */
+        goto unimplemented;
+    case TARGET_NR_umount:
+        ret = get_errno(umount((const char *)arg1));
+        break;
+    case TARGET_NR_setuid:
+        ret = get_errno(setuid(arg1));
+        break;
+    case TARGET_NR_getuid:
+        ret = get_errno(getuid());
+        break;
+    case TARGET_NR_stime:
+        {
+            int *time_ptr = (int *)arg1;
+            if (time_ptr)
+                tswap32s(time_ptr);
+            ret = get_errno(stime((time_t *)time_ptr));
+        }
+        break;
+    case TARGET_NR_ptrace:
+        goto unimplemented;
+    case TARGET_NR_alarm:
+        ret = alarm(arg1);
+        break;
+    case TARGET_NR_oldfstat:
+        goto unimplemented;
+    case TARGET_NR_pause:
+        ret = get_errno(pause());
+        break;
+    case TARGET_NR_utime:
+        goto unimplemented;
+    case TARGET_NR_stty:
+        goto unimplemented;
+    case TARGET_NR_gtty:
+        goto unimplemented;
+    case TARGET_NR_access:
+        ret = get_errno(access((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_nice:
+        ret = get_errno(nice(arg1));
+        break;
+    case TARGET_NR_ftime:
+        goto unimplemented;
+    case TARGET_NR_sync:
+        ret = get_errno(sync());
+        break;
+    case TARGET_NR_kill:
+        ret = get_errno(kill(arg1, arg2));
+        break;
+    case TARGET_NR_rename:
+        ret = get_errno(rename((const char *)arg1, (const char *)arg2));
+        break;
+    case TARGET_NR_mkdir:
+        ret = get_errno(mkdir((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_rmdir:
+        ret = get_errno(rmdir((const char *)arg1));
+        break;
+    case TARGET_NR_dup:
+        ret = get_errno(dup(arg1));
+        break;
+    case TARGET_NR_pipe:
+        {
+            int *pipe_ptr = (int *)arg1;
+            ret = get_errno(pipe(pipe_ptr));
+            if (!is_error(ret)) {
+                tswap32s(&pipe_ptr[0]);
+                tswap32s(&pipe_ptr[1]);
+            }
+        }
+        break;
+    case TARGET_NR_times:
+        goto unimplemented;
+    case TARGET_NR_prof:
+        goto unimplemented;
+    case TARGET_NR_setgid:
+        ret = get_errno(setgid(arg1));
+        break;
+    case TARGET_NR_getgid:
+        ret = get_errno(getgid());
+        break;
+    case TARGET_NR_signal:
+        goto unimplemented;
+    case TARGET_NR_geteuid:
+        ret = get_errno(geteuid());
+        break;
+    case TARGET_NR_getegid:
+        ret = get_errno(getegid());
+        break;
+    case TARGET_NR_acct:
+        goto unimplemented;
+    case TARGET_NR_umount2:
+        ret = get_errno(umount2((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_lock:
+        goto unimplemented;
+    case TARGET_NR_ioctl:
+        ret = do_ioctl(arg1, arg2, arg3);
+        break;
+    case TARGET_NR_fcntl:
+        switch(arg2) {
+        case F_GETLK:
+        case F_SETLK:
+        case F_SETLKW:
+            goto unimplemented;
+        default:
+            ret = get_errno(fcntl(arg1, arg2, arg3));
+            break;
+        }
+        break;
+    case TARGET_NR_mpx:
+        goto unimplemented;
+    case TARGET_NR_setpgid:
+        ret = get_errno(setpgid(arg1, arg2));
+        break;
+    case TARGET_NR_ulimit:
+        goto unimplemented;
+    case TARGET_NR_oldolduname:
+        goto unimplemented;
+    case TARGET_NR_umask:
+        ret = get_errno(umask(arg1));
+        break;
+    case TARGET_NR_chroot:
+        ret = get_errno(chroot((const char *)arg1));
+        break;
+    case TARGET_NR_ustat:
+        goto unimplemented;
+    case TARGET_NR_dup2:
+        ret = get_errno(dup2(arg1, arg2));
+        break;
+    case TARGET_NR_getppid:
+        ret = get_errno(getppid());
+        break;
+    case TARGET_NR_getpgrp:
+        ret = get_errno(getpgrp());
+        break;
+    case TARGET_NR_setsid:
+        ret = get_errno(setsid());
+        break;
+    case TARGET_NR_sigaction:
+#if 0
+        {
+            int signum = arg1;
+            struct target_old_sigaction *tact = arg2, *toldact = arg3;
+            ret = get_errno(setsid());
+            
+
+        }
+        break;
+#else
+        goto unimplemented;
+#endif
+    case TARGET_NR_sgetmask:
+        goto unimplemented;
+    case TARGET_NR_ssetmask:
+        goto unimplemented;
+    case TARGET_NR_setreuid:
+        ret = get_errno(setreuid(arg1, arg2));
+        break;
+    case TARGET_NR_setregid:
+        ret = get_errno(setregid(arg1, arg2));
+        break;
+    case TARGET_NR_sigsuspend:
+        goto unimplemented;
+    case TARGET_NR_sigpending:
+        goto unimplemented;
+    case TARGET_NR_sethostname:
+        ret = get_errno(sethostname((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_setrlimit:
+        goto unimplemented;
+    case TARGET_NR_getrlimit:
+        goto unimplemented;
+    case TARGET_NR_getrusage:
+        goto unimplemented;
+    case TARGET_NR_gettimeofday:
+        {
+            struct target_timeval *target_tv = (void *)arg1;
+            struct timeval tv;
+            ret = get_errno(gettimeofday(&tv, NULL));
+            if (!is_error(ret)) {
+                target_tv->tv_sec = tswapl(tv.tv_sec);
+                target_tv->tv_usec = tswapl(tv.tv_usec);
+            }
+        }
+        break;
+    case TARGET_NR_settimeofday:
+        {
+            struct target_timeval *target_tv = (void *)arg1;
+            struct timeval tv;
+            tv.tv_sec = tswapl(target_tv->tv_sec);
+            tv.tv_usec = tswapl(target_tv->tv_usec);
+            ret = get_errno(settimeofday(&tv, NULL));
+        }
+        break;
+    case TARGET_NR_getgroups:
+        goto unimplemented;
+    case TARGET_NR_setgroups:
+        goto unimplemented;
+    case TARGET_NR_select:
+        goto unimplemented;
+    case TARGET_NR_symlink:
+        ret = get_errno(symlink((const char *)arg1, (const char *)arg2));
+        break;
+    case TARGET_NR_oldlstat:
+        goto unimplemented;
+    case TARGET_NR_readlink:
+        ret = get_errno(readlink((const char *)arg1, (char *)arg2, arg3));
+        break;
+    case TARGET_NR_uselib:
+        goto unimplemented;
+    case TARGET_NR_swapon:
+        ret = get_errno(swapon((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_reboot:
+        goto unimplemented;
+    case TARGET_NR_readdir:
+        goto unimplemented;
+#ifdef TARGET_I386
+    case TARGET_NR_mmap:
+        {
+            uint32_t v1, v2, v3, v4, v5, v6, *vptr;
+            vptr = (uint32_t *)arg1;
+            v1 = tswap32(vptr[0]);
+            v2 = tswap32(vptr[1]);
+            v3 = tswap32(vptr[2]);
+            v4 = tswap32(vptr[3]);
+            v5 = tswap32(vptr[4]);
+            v6 = tswap32(vptr[5]);
+            ret = get_errno((long)mmap((void *)v1, v2, v3, v4, v5, v6));
+        }
+        break;
+#endif
+#ifdef TARGET_I386
+    case TARGET_NR_mmap2:
+#else
+    case TARGET_NR_mmap:
+#endif
+        ret = get_errno((long)mmap((void *)arg1, arg2, arg3, arg4, arg5, arg6));
+        break;
+    case TARGET_NR_munmap:
+        ret = get_errno(munmap((void *)arg1, arg2));
+        break;
+    case TARGET_NR_truncate:
+        ret = get_errno(truncate((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_ftruncate:
+        ret = get_errno(ftruncate(arg1, arg2));
+        break;
+    case TARGET_NR_fchmod:
+        ret = get_errno(fchmod(arg1, arg2));
+        break;
+    case TARGET_NR_fchown:
+        ret = get_errno(fchown(arg1, arg2, arg3));
+        break;
+    case TARGET_NR_getpriority:
+        ret = get_errno(getpriority(arg1, arg2));
+        break;
+    case TARGET_NR_setpriority:
+        ret = get_errno(setpriority(arg1, arg2, arg3));
+        break;
+    case TARGET_NR_profil:
+        goto unimplemented;
+    case TARGET_NR_statfs:
+        stfs = (void *)arg2;
+        ret = get_errno(sys_statfs((const char *)arg1, stfs));
+    convert_statfs:
+        if (!is_error(ret)) {
+            tswap32s(&stfs->f_type);
+            tswap32s(&stfs->f_bsize);
+            tswap32s(&stfs->f_blocks);
+            tswap32s(&stfs->f_bfree);
+            tswap32s(&stfs->f_bavail);
+            tswap32s(&stfs->f_files);
+            tswap32s(&stfs->f_ffree);
+            tswap32s(&stfs->f_fsid.val[0]);
+            tswap32s(&stfs->f_fsid.val[1]);
+            tswap32s(&stfs->f_namelen);
+        }
+        break;
+    case TARGET_NR_fstatfs:
+        stfs = (void *)arg2;
+        ret = get_errno(sys_fstatfs(arg1, stfs));
+        goto convert_statfs;
+    case TARGET_NR_ioperm:
+        goto unimplemented;
+    case TARGET_NR_socketcall:
+        ret = do_socketcall(arg1, (long *)arg2);
+        break;
+    case TARGET_NR_syslog:
+        goto unimplemented;
+    case TARGET_NR_setitimer:
+        goto unimplemented;
+    case TARGET_NR_getitimer:
+        goto unimplemented;
+    case TARGET_NR_stat:
+        ret = get_errno(stat((const char *)arg1, &st));
+        goto do_stat;
+    case TARGET_NR_lstat:
+        ret = get_errno(lstat((const char *)arg1, &st));
+        goto do_stat;
+    case TARGET_NR_fstat:
+        {
+            ret = get_errno(fstat(arg1, &st));
+        do_stat:
+            if (!is_error(ret)) {
+                struct target_stat *target_st = (void *)arg2;
+                target_st->st_dev = tswap16(st.st_dev);
+                target_st->st_ino = tswapl(st.st_ino);
+                target_st->st_mode = tswap16(st.st_mode);
+                target_st->st_nlink = tswap16(st.st_nlink);
+                target_st->st_uid = tswap16(st.st_uid);
+                target_st->st_gid = tswap16(st.st_gid);
+                target_st->st_rdev = tswap16(st.st_rdev);
+                target_st->st_size = tswapl(st.st_size);
+                target_st->st_blksize = tswapl(st.st_blksize);
+                target_st->st_blocks = tswapl(st.st_blocks);
+                target_st->st_atime = tswapl(st.st_atime);
+                target_st->st_mtime = tswapl(st.st_mtime);
+                target_st->st_ctime = tswapl(st.st_ctime);
+            }
+        }
+        break;
+    case TARGET_NR_olduname:
+        goto unimplemented;
+    case TARGET_NR_iopl:
+        goto unimplemented;
+    case TARGET_NR_vhangup:
+        ret = get_errno(vhangup());
+        break;
+    case TARGET_NR_idle:
+        goto unimplemented;
+    case TARGET_NR_vm86old:
+        goto unimplemented;
+    case TARGET_NR_wait4:
+        {
+            int status;
+            target_long *status_ptr = (void *)arg2;
+            struct rusage rusage, *rusage_ptr;
+            struct target_rusage *target_rusage = (void *)arg4;
+            if (target_rusage)
+                rusage_ptr = &rusage;
+            else
+                rusage_ptr = NULL;
+            ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr));
+            if (!is_error(ret)) {
+                if (status_ptr)
+                    *status_ptr = tswap32(status);
+                if (target_rusage) {
+                    target_rusage->ru_utime.tv_sec = tswapl(rusage.ru_utime.tv_sec);
+                    target_rusage->ru_utime.tv_usec = tswapl(rusage.ru_utime.tv_usec);
+                    target_rusage->ru_stime.tv_sec = tswapl(rusage.ru_stime.tv_sec);
+                    target_rusage->ru_stime.tv_usec = tswapl(rusage.ru_stime.tv_usec);
+                    target_rusage->ru_maxrss = tswapl(rusage.ru_maxrss);
+                    target_rusage->ru_ixrss = tswapl(rusage.ru_ixrss);
+                    target_rusage->ru_idrss = tswapl(rusage.ru_idrss);
+                    target_rusage->ru_isrss = tswapl(rusage.ru_isrss);
+                    target_rusage->ru_minflt = tswapl(rusage.ru_minflt);
+                    target_rusage->ru_majflt = tswapl(rusage.ru_majflt);
+                    target_rusage->ru_nswap = tswapl(rusage.ru_nswap);
+                    target_rusage->ru_inblock = tswapl(rusage.ru_inblock);
+                    target_rusage->ru_oublock = tswapl(rusage.ru_oublock);
+                    target_rusage->ru_msgsnd = tswapl(rusage.ru_msgsnd);
+                    target_rusage->ru_msgrcv = tswapl(rusage.ru_msgrcv);
+                    target_rusage->ru_nsignals = tswapl(rusage.ru_nsignals);
+                    target_rusage->ru_nvcsw = tswapl(rusage.ru_nvcsw);
+                    target_rusage->ru_nivcsw = tswapl(rusage.ru_nivcsw);
+                }
+            }
+        }
+        break;
+    case TARGET_NR_swapoff:
+        ret = get_errno(swapoff((const char *)arg1));
+        break;
+    case TARGET_NR_sysinfo:
+        goto unimplemented;
+    case TARGET_NR_ipc:
+        goto unimplemented;
+    case TARGET_NR_fsync:
+        ret = get_errno(fsync(arg1));
+        break;
+    case TARGET_NR_sigreturn:
+        goto unimplemented;
+    case TARGET_NR_clone:
+        goto unimplemented;
+    case TARGET_NR_setdomainname:
+        ret = get_errno(setdomainname((const char *)arg1, arg2));
+        break;
+    case TARGET_NR_uname:
+        /* no need to transcode because we use the linux syscall */
+        ret = get_errno(sys_uname((struct new_utsname *)arg1));
+        break;
+    case TARGET_NR_modify_ldt:
+        goto unimplemented;
+    case TARGET_NR_adjtimex:
+        goto unimplemented;
+    case TARGET_NR_mprotect:
+        ret = get_errno(mprotect((void *)arg1, arg2, arg3));
+        break;
+    case TARGET_NR_sigprocmask:
+        {
+            int how = arg1;
+            sigset_t set, oldset, *set_ptr;
+            target_ulong *pset = (void *)arg2, *poldset = (void *)arg3;
+            
+            switch(how) {
+            case TARGET_SIG_BLOCK:
+                how = SIG_BLOCK;
+                break;
+            case TARGET_SIG_UNBLOCK:
+                how = SIG_UNBLOCK;
+                break;
+            case TARGET_SIG_SETMASK:
+                how = SIG_SETMASK;
+                break;
+            default:
+                ret = -EINVAL;
+                goto fail;
+            }
+            
+            if (pset) {
+                target_to_host_old_sigset(&set, pset);
+                set_ptr = &set;
+            } else {
+                set_ptr = NULL;
+            }
+            ret = get_errno(sigprocmask(arg1, set_ptr, &oldset));
+            if (!is_error(ret) && poldset) {
+                host_to_target_old_sigset(poldset, &oldset);
+            }
+        }
+        break;
+    case TARGET_NR_create_module:
+    case TARGET_NR_init_module:
+    case TARGET_NR_delete_module:
+    case TARGET_NR_get_kernel_syms:
+        goto unimplemented;
+    case TARGET_NR_quotactl:
+        goto unimplemented;
+    case TARGET_NR_getpgid:
+        ret = get_errno(getpgid(arg1));
+        break;
+    case TARGET_NR_fchdir:
+        ret = get_errno(fchdir(arg1));
+        break;
+    case TARGET_NR_bdflush:
+        goto unimplemented;
+    case TARGET_NR_sysfs:
+        goto unimplemented;
+    case TARGET_NR_personality:
+        ret = get_errno(mprotect((void *)arg1, arg2, arg3));
+        break;
+    case TARGET_NR_afs_syscall:
+        goto unimplemented;
+    case TARGET_NR_setfsuid:
+        goto unimplemented;
+    case TARGET_NR_setfsgid:
+        goto unimplemented;
+    case TARGET_NR__llseek:
+        {
+            int64_t res;
+            ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5));
+            *(int64_t *)arg4 = tswap64(res);
+        }
+        break;
+    case TARGET_NR_getdents:
+#if TARGET_LONG_SIZE != 4
+#error not supported
+#endif
+        {
+            struct dirent *dirp = (void *)arg2;
+            long count = arg3;
+            ret = get_errno(getdents(arg1, dirp, count));
+            if (!is_error(ret)) {
+                struct dirent *de;
+                int len = ret;
+                int reclen;
+                de = dirp;
+                while (len > 0) {
+                    reclen = tswap16(de->d_reclen);
+                    if (reclen > len)
+                        break;
+                    de->d_reclen = reclen;
+                    tswapls(&de->d_ino);
+                    tswapls(&de->d_off);
+                    de = (struct dirent *)((char *)de + reclen);
+                    len -= reclen;
+                }
+            }
+        }
+        break;
+    case TARGET_NR__newselect:
+        ret = do_select(arg1, (void *)arg2, (void *)arg3, (void *)arg4, 
+                        (void *)arg5);
+        break;
+    case TARGET_NR_flock:
+        goto unimplemented;
+    case TARGET_NR_msync:
+        ret = get_errno(msync((void *)arg1, arg2, arg3));
+        break;
+    case TARGET_NR_readv:
+        {
+            int count = arg3;
+            int i;
+            struct iovec *vec;
+            struct target_iovec *target_vec = (void *)arg2;
+
+            vec = alloca(count * sizeof(struct iovec));
+            for(i = 0;i < count; i++) {
+                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
+                vec[i].iov_len = tswapl(target_vec[i].iov_len);
+            }
+            ret = get_errno(readv(arg1, vec, count));
+        }
+        break;
+    case TARGET_NR_writev:
+        {
+            int count = arg3;
+            int i;
+            struct iovec *vec;
+            struct target_iovec *target_vec = (void *)arg2;
+
+            vec = alloca(count * sizeof(struct iovec));
+            for(i = 0;i < count; i++) {
+                vec[i].iov_base = (void *)tswapl(target_vec[i].iov_base);
+                vec[i].iov_len = tswapl(target_vec[i].iov_len);
+            }
+            ret = get_errno(writev(arg1, vec, count));
+        }
+        break;
+    case TARGET_NR_getsid:
+        ret = get_errno(getsid(arg1));
+        break;
+    case TARGET_NR_fdatasync:
+        goto unimplemented;
+    case TARGET_NR__sysctl:
+        goto unimplemented;
+    case TARGET_NR_mlock:
+        ret = get_errno(mlock((void *)arg1, arg2));
+        break;
+    case TARGET_NR_munlock:
+        ret = get_errno(munlock((void *)arg1, arg2));
+        break;
+    case TARGET_NR_mlockall:
+        ret = get_errno(mlockall(arg1));
+        break;
+    case TARGET_NR_munlockall:
+        ret = get_errno(munlockall());
+        break;
+    case TARGET_NR_sched_setparam:
+        goto unimplemented;
+    case TARGET_NR_sched_getparam:
+        goto unimplemented;
+    case TARGET_NR_sched_setscheduler:
+        goto unimplemented;
+    case TARGET_NR_sched_getscheduler:
+        goto unimplemented;
+    case TARGET_NR_sched_yield:
+        ret = get_errno(sched_yield());
+        break;
+    case TARGET_NR_sched_get_priority_max:
+    case TARGET_NR_sched_get_priority_min:
+    case TARGET_NR_sched_rr_get_interval:
+    case TARGET_NR_nanosleep:
+    case TARGET_NR_mremap:
+    case TARGET_NR_setresuid:
+    case TARGET_NR_getresuid:
+    case TARGET_NR_vm86:
+    case TARGET_NR_query_module:
+    case TARGET_NR_poll:
+    case TARGET_NR_nfsservctl:
+    case TARGET_NR_setresgid:
+    case TARGET_NR_getresgid:
+    case TARGET_NR_prctl:
+    case TARGET_NR_rt_sigreturn:
+    case TARGET_NR_rt_sigaction:
+    case TARGET_NR_rt_sigprocmask:
+    case TARGET_NR_rt_sigpending:
+    case TARGET_NR_rt_sigtimedwait:
+    case TARGET_NR_rt_sigqueueinfo:
+    case TARGET_NR_rt_sigsuspend:
+    case TARGET_NR_pread:
+    case TARGET_NR_pwrite:
+        goto unimplemented;
+    case TARGET_NR_chown:
+        ret = get_errno(chown((const char *)arg1, arg2, arg3));
+        break;
+    case TARGET_NR_getcwd:
+        ret = get_errno(sys_getcwd((char *)arg1, arg2));
+        break;
+    case TARGET_NR_capget:
+    case TARGET_NR_capset:
+    case TARGET_NR_sigaltstack:
+    case TARGET_NR_sendfile:
+    case TARGET_NR_getpmsg:
+    case TARGET_NR_putpmsg:
+    case TARGET_NR_vfork:
+        ret = get_errno(vfork());
+        break;
+    case TARGET_NR_ugetrlimit:
+    case TARGET_NR_truncate64:
+    case TARGET_NR_ftruncate64:
+    case TARGET_NR_stat64:
+    case TARGET_NR_lstat64:
+    case TARGET_NR_fstat64:
+    case TARGET_NR_lchown32:
+    case TARGET_NR_getuid32:
+    case TARGET_NR_getgid32:
+    case TARGET_NR_geteuid32:
+    case TARGET_NR_getegid32:
+    case TARGET_NR_setreuid32:
+    case TARGET_NR_setregid32:
+    case TARGET_NR_getgroups32:
+    case TARGET_NR_setgroups32:
+    case TARGET_NR_fchown32:
+    case TARGET_NR_setresuid32:
+    case TARGET_NR_getresuid32:
+    case TARGET_NR_setresgid32:
+    case TARGET_NR_getresgid32:
+    case TARGET_NR_chown32:
+    case TARGET_NR_setuid32:
+    case TARGET_NR_setgid32:
+    case TARGET_NR_setfsuid32:
+    case TARGET_NR_setfsgid32:
+    case TARGET_NR_pivot_root:
+    case TARGET_NR_mincore:
+    case TARGET_NR_madvise:
+    case TARGET_NR_getdents64:
+    case TARGET_NR_fcntl64:
+    case TARGET_NR_security:
+        goto unimplemented;
+    case TARGET_NR_gettid:
+        ret = get_errno(gettid());
+        break;
+    case TARGET_NR_readahead:
+    case TARGET_NR_setxattr:
+    case TARGET_NR_lsetxattr:
+    case TARGET_NR_fsetxattr:
+    case TARGET_NR_getxattr:
+    case TARGET_NR_lgetxattr:
+    case TARGET_NR_fgetxattr:
+    case TARGET_NR_listxattr:
+    case TARGET_NR_llistxattr:
+    case TARGET_NR_flistxattr:
+    case TARGET_NR_removexattr:
+    case TARGET_NR_lremovexattr:
+    case TARGET_NR_fremovexattr:
+        goto unimplemented;
+    default:
+    unimplemented:
+        gemu_log("Unsupported syscall: %d\n", num);
+        ret = -ENOSYS;
+        break;
+    }
+ fail:
+    return ret;
+}
+
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
new file mode 100644
index 0000000..c8f25bb
--- /dev/null
+++ b/linux-user/syscall_defs.h
@@ -0,0 +1,283 @@
+
+/* common syscall defines for all architectures */
+
+#define SOCKOP_socket           1
+#define SOCKOP_bind             2
+#define SOCKOP_connect          3
+#define SOCKOP_listen           4
+#define SOCKOP_accept           5
+#define SOCKOP_getsockname      6
+#define SOCKOP_getpeername      7
+#define SOCKOP_socketpair       8
+#define SOCKOP_send             9
+#define SOCKOP_recv             10
+#define SOCKOP_sendto           11
+#define SOCKOP_recvfrom         12
+#define SOCKOP_shutdown         13
+#define SOCKOP_setsockopt       14
+#define SOCKOP_getsockopt       15
+#define SOCKOP_sendmsg          16
+#define SOCKOP_recvmsg          17
+
+struct target_timeval {
+    target_long tv_sec;
+    target_long tv_usec;
+};
+
+struct target_iovec {
+    target_long iov_base;   /* Starting address */
+    target_long iov_len;   /* Number of bytes */
+};
+
+struct  target_rusage {
+        struct target_timeval ru_utime;        /* user time used */
+        struct target_timeval ru_stime;        /* system time used */
+        target_long    ru_maxrss;              /* maximum resident set size */
+        target_long    ru_ixrss;               /* integral shared memory size */
+        target_long    ru_idrss;               /* integral unshared data size */
+        target_long    ru_isrss;               /* integral unshared stack size */
+        target_long    ru_minflt;              /* page reclaims */
+        target_long    ru_majflt;              /* page faults */
+        target_long    ru_nswap;               /* swaps */
+        target_long    ru_inblock;             /* block input operations */
+        target_long    ru_oublock;             /* block output operations */
+        target_long    ru_msgsnd;              /* messages sent */
+        target_long    ru_msgrcv;              /* messages received */
+        target_long    ru_nsignals;            /* signals received */
+        target_long    ru_nvcsw;               /* voluntary context switches */
+        target_long    ru_nivcsw;              /* involuntary " */
+};
+
+typedef struct {
+        int     val[2];
+} kernel_fsid_t;
+
+struct statfs {
+	int f_type;
+	int f_bsize;
+	int f_blocks;
+	int f_bfree;
+	int f_bavail;
+	int f_files;
+	int f_ffree;
+        kernel_fsid_t f_fsid;
+	int f_namelen;
+	int f_spare[6];
+};
+
+/* mostly generic signal stuff */
+#define TARGET_SIG_DFL	((target_long)0)	/* default signal handling */
+#define TARGET_SIG_IGN	((target_long)1)	/* ignore signal */
+#define TARGET_SIG_ERR	((target_long)-1)	/* error return from signal */
+
+#ifdef TARGET_MIPS
+#define TARGET_NSIG	   128
+#else
+#define TARGET_NSIG	   64
+#endif
+#define TARGET_NSIG_BPW	   TARGET_LONG_BITS
+#define TARGET_NSIG_WORDS  (TARGET_NSIG / TARGET_NSIG_BPW)
+
+typedef struct {
+    target_ulong sig[TARGET_NSIG_WORDS];
+} target_sigset_t;
+
+/* Networking ioctls */
+#define TARGET_SIOCADDRT       0x890B          /* add routing table entry */
+#define TARGET_SIOCDELRT       0x890C          /* delete routing table entry */
+#define TARGET_SIOCGIFNAME     0x8910          /* get iface name               */
+#define TARGET_SIOCSIFLINK     0x8911          /* set iface channel            */
+#define TARGET_SIOCGIFCONF     0x8912          /* get iface list               */
+#define TARGET_SIOCGIFFLAGS    0x8913          /* get flags                    */
+#define TARGET_SIOCSIFFLAGS    0x8914          /* set flags                    */
+#define TARGET_SIOCGIFADDR     0x8915          /* get PA address               */
+#define TARGET_SIOCSIFADDR     0x8916          /* set PA address               */
+#define TARGET_SIOCGIFDSTADDR  0x8917          /* get remote PA address        */
+#define TARGET_SIOCSIFDSTADDR  0x8918          /* set remote PA address        */
+#define TARGET_SIOCGIFBRDADDR  0x8919          /* get broadcast PA address     */
+#define TARGET_SIOCSIFBRDADDR  0x891a          /* set broadcast PA address     */
+#define TARGET_SIOCGIFNETMASK  0x891b          /* get network PA mask          */
+#define TARGET_SIOCSIFNETMASK  0x891c          /* set network PA mask          */
+#define TARGET_SIOCGIFMETRIC   0x891d          /* get metric                   */
+#define TARGET_SIOCSIFMETRIC   0x891e          /* set metric                   */
+#define TARGET_SIOCGIFMEM      0x891f          /* get memory address (BSD)     */
+#define TARGET_SIOCSIFMEM      0x8920          /* set memory address (BSD)     */
+#define TARGET_SIOCGIFMTU      0x8921          /* get MTU size                 */
+#define TARGET_SIOCSIFMTU      0x8922          /* set MTU size                 */
+#define TARGET_SIOCSIFHWADDR   0x8924          /* set hardware address (NI)    */
+#define TARGET_SIOCGIFENCAP    0x8925          /* get/set slip encapsulation   */
+#define TARGET_SIOCSIFENCAP    0x8926
+#define TARGET_SIOCGIFHWADDR   0x8927          /* Get hardware address         */
+#define TARGET_SIOCGIFSLAVE    0x8929          /* Driver slaving support       */
+#define TARGET_SIOCSIFSLAVE    0x8930
+#define TARGET_SIOCADDMULTI    0x8931          /* Multicast address lists      */
+#define TARGET_SIOCDELMULTI    0x8932
+
+/* Bridging control calls */
+#define TARGET_SIOCGIFBR       0x8940          /* Bridging support             */
+#define TARGET_SIOCSIFBR       0x8941          /* Set bridging options         */
+
+#define TARGET_SIOCGIFTXQLEN   0x8942          /* Get the tx queue length      */
+#define TARGET_SIOCSIFTXQLEN   0x8943          /* Set the tx queue length      */
+
+/* ARP cache control calls. */
+#define TARGET_OLD_SIOCDARP    0x8950          /* old delete ARP table entry   */
+#define TARGET_OLD_SIOCGARP    0x8951          /* old get ARP table entry      */
+#define TARGET_OLD_SIOCSARP    0x8952          /* old set ARP table entry      */
+#define TARGET_SIOCDARP        0x8953          /* delete ARP table entry       */
+#define TARGET_SIOCGARP        0x8954          /* get ARP table entry          */
+#define TARGET_SIOCSARP        0x8955          /* set ARP table entry          */
+
+/* RARP cache control calls. */
+#define TARGET_SIOCDRARP       0x8960          /* delete RARP table entry      */
+#define TARGET_SIOCGRARP       0x8961          /* get RARP table entry         */
+#define TARGET_SIOCSRARP       0x8962          /* set RARP table entry         */
+
+/* Driver configuration calls */
+#define TARGET_SIOCGIFMAP      0x8970          /* Get device parameters        */
+#define TARGET_SIOCSIFMAP      0x8971          /* Set device parameters        */
+
+/* DLCI configuration calls */
+#define TARGET_SIOCADDDLCI     0x8980          /* Create new DLCI device       */
+#define TARGET_SIOCDELDLCI     0x8981          /* Delete DLCI device           */
+
+
+/* From <linux/fs.h> */
+
+#define TARGET_BLKROSET   TARGET_IO(0x12,93) /* set device read-only (0 = read-write) */
+#define TARGET_BLKROGET   TARGET_IO(0x12,94) /* get read-only status (0 = read_write) */
+#define TARGET_BLKRRPART  TARGET_IO(0x12,95) /* re-read partition table */
+#define TARGET_BLKGETSIZE TARGET_IO(0x12,96) /* return device size /512 (long *arg) */
+#define TARGET_BLKFLSBUF  TARGET_IO(0x12,97) /* flush buffer cache */
+#define TARGET_BLKRASET   TARGET_IO(0x12,98) /* Set read ahead for block device */
+#define TARGET_BLKRAGET   TARGET_IO(0x12,99) /* get current read ahead setting */
+#define TARGET_BLKFRASET  TARGET_IO(0x12,100)/* set filesystem (mm/filemap.c) read-ahead */
+#define TARGET_BLKFRAGET  TARGET_IO(0x12,101)/* get filesystem (mm/filemap.c) read-ahead */
+#define TARGET_BLKSECTSET TARGET_IO(0x12,102)/* set max sectors per request (ll_rw_blk.c) */
+#define TARGET_BLKSECTGET TARGET_IO(0x12,103)/* get max sectors per request (ll_rw_blk.c) */
+#define TARGET_BLKSSZGET  TARGET_IO(0x12,104)/* get block device sector size */
+/* A jump here: 108-111 have been used for various private purposes. */
+#define TARGET_BLKBSZGET  TARGET_IOR(0x12,112,sizeof(int))
+#define TARGET_BLKBSZSET  TARGET_IOW(0x12,113,sizeof(int))
+#define TARGET_BLKGETSIZE64 TARGET_IOR(0x12,114,sizeof(uint64_t)) /* return device size in bytes (u64 *arg) */
+#define TARGET_FIBMAP     TARGET_IO(0x00,1)  /* bmap access */
+#define TARGET_FIGETBSZ   TARGET_IO(0x00,2)  /* get the block size used for bmap */
+
+/* cdrom commands */
+#define TARGET_CDROMPAUSE		0x5301 /* Pause Audio Operation */ 
+#define TARGET_CDROMRESUME		0x5302 /* Resume paused Audio Operation */
+#define TARGET_CDROMPLAYMSF		0x5303 /* Play Audio MSF (struct cdrom_msf) */
+#define TARGET_CDROMPLAYTRKIND		0x5304 /* Play Audio Track/index 
+                                           (struct cdrom_ti) */
+#define TARGET_CDROMREADTOCHDR		0x5305 /* Read TOC header 
+                                           (struct cdrom_tochdr) */
+#define TARGET_CDROMREADTOCENTRY	0x5306 /* Read TOC entry 
+                                           (struct cdrom_tocentry) */
+#define TARGET_CDROMSTOP		0x5307 /* Stop the cdrom drive */
+#define TARGET_CDROMSTART		0x5308 /* Start the cdrom drive */
+#define TARGET_CDROMEJECT		0x5309 /* Ejects the cdrom media */
+#define TARGET_CDROMVOLCTRL		0x530a /* Control output volume 
+                                           (struct cdrom_volctrl) */
+#define TARGET_CDROMSUBCHNL		0x530b /* Read subchannel data 
+                                           (struct cdrom_subchnl) */
+#define TARGET_CDROMREADMODE2		0x530c /* Read TARGET_CDROM mode 2 data (2336 Bytes) 
+                                           (struct cdrom_read) */
+#define TARGET_CDROMREADMODE1		0x530d /* Read TARGET_CDROM mode 1 data (2048 Bytes)
+                                           (struct cdrom_read) */
+#define TARGET_CDROMREADAUDIO		0x530e /* (struct cdrom_read_audio) */
+#define TARGET_CDROMEJECT_SW		0x530f /* enable(1)/disable(0) auto-ejecting */
+#define TARGET_CDROMMULTISESSION	0x5310 /* Obtain the start-of-last-session 
+                                           address of multi session disks 
+                                           (struct cdrom_multisession) */
+#define TARGET_CDROM_GET_MCN		0x5311 /* Obtain the "Universal Product Code" 
+                                           if available (struct cdrom_mcn) */
+#define TARGET_CDROM_GET_UPC		TARGET_CDROM_GET_MCN  /* This one is depricated, 
+                                          but here anyway for compatability */
+#define TARGET_CDROMRESET		0x5312 /* hard-reset the drive */
+#define TARGET_CDROMVOLREAD		0x5313 /* Get the drive's volume setting 
+                                          (struct cdrom_volctrl) */
+#define TARGET_CDROMREADRAW		0x5314	/* read data in raw mode (2352 Bytes)
+                                           (struct cdrom_read) */
+/* 
+ * These ioctls are used only used in aztcd.c and optcd.c
+ */
+#define TARGET_CDROMREADCOOKED		0x5315	/* read data in cooked mode */
+#define TARGET_CDROMSEEK		0x5316  /* seek msf address */
+  
+/*
+ * This ioctl is only used by the scsi-cd driver.  
+   It is for playing audio in logical block addressing mode.
+ */
+#define TARGET_CDROMPLAYBLK		0x5317	/* (struct cdrom_blk) */
+
+/* 
+ * These ioctls are only used in optcd.c
+ */
+#define TARGET_CDROMREADALL		0x5318	/* read all 2646 bytes */
+
+/* 
+ * These ioctls are (now) only in ide-cd.c for controlling 
+ * drive spindown time.  They should be implemented in the
+ * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10,
+ * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE...
+ *  -Erik
+ */
+#define TARGET_CDROMGETSPINDOWN        0x531d
+#define TARGET_CDROMSETSPINDOWN        0x531e
+
+/* 
+ * These ioctls are implemented through the uniform CD-ROM driver
+ * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM
+ * drivers are eventually ported to the uniform CD-ROM driver interface.
+ */
+#define TARGET_CDROMCLOSETRAY		0x5319	/* pendant of CDROMEJECT */
+#define TARGET_CDROM_SET_OPTIONS	0x5320  /* Set behavior options */
+#define TARGET_CDROM_CLEAR_OPTIONS	0x5321  /* Clear behavior options */
+#define TARGET_CDROM_SELECT_SPEED	0x5322  /* Set the CD-ROM speed */
+#define TARGET_CDROM_SELECT_DISC	0x5323  /* Select disc (for juke-boxes) */
+#define TARGET_CDROM_MEDIA_CHANGED	0x5325  /* Check is media changed  */
+#define TARGET_CDROM_DRIVE_STATUS	0x5326  /* Get tray position, etc. */
+#define TARGET_CDROM_DISC_STATUS	0x5327  /* Get disc type, etc. */
+#define TARGET_CDROM_CHANGER_NSLOTS    0x5328  /* Get number of slots */
+#define TARGET_CDROM_LOCKDOOR		0x5329  /* lock or unlock door */
+#define TARGET_CDROM_DEBUG		0x5330	/* Turn debug messages on/off */
+#define TARGET_CDROM_GET_CAPABILITY	0x5331	/* get capabilities */
+
+/* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386.
+ * Future CDROM ioctls should be kept below 0x537F
+ */
+
+/* This ioctl is only used by sbpcd at the moment */
+#define TARGET_CDROMAUDIOBUFSIZ        0x5382	/* set the audio buffer size */
+					/* conflict with SCSI_IOCTL_GET_IDLUN */
+
+/* DVD-ROM Specific ioctls */
+#define TARGET_DVD_READ_STRUCT		0x5390  /* Read structure */
+#define TARGET_DVD_WRITE_STRUCT	0x5391  /* Write structure */
+#define TARGET_DVD_AUTH		0x5392  /* Authentication */
+
+#define TARGET_CDROM_SEND_PACKET	0x5393	/* send a packet to the drive */
+#define TARGET_CDROM_NEXT_WRITABLE	0x5394	/* get next writable block */
+#define TARGET_CDROM_LAST_WRITTEN	0x5395	/* get last block written on disc */
+
+/* HD commands */
+
+/* hd/ide ctl's that pass (arg) ptrs to user space are numbered 0x030n/0x031n */
+#define TARGET_HDIO_GETGEO            0x0301  /* get device geometry */
+#define TARGET_HDIO_GET_UNMASKINTR    0x0302  /* get current unmask setting */
+#define TARGET_HDIO_GET_MULTCOUNT     0x0304  /* get current IDE blockmode setting */
+#define TARGET_HDIO_GET_IDENTITY      0x0307  /* get IDE identification info */
+#define TARGET_HDIO_GET_KEEPSETTINGS  0x0308  /* get keep-settings-on-reset flag */
+#define TARGET_HDIO_GET_32BIT         0x0309  /* get current io_32bit setting */
+#define TARGET_HDIO_GET_NOWERR        0x030a  /* get ignore-write-error flag */
+#define TARGET_HDIO_GET_DMA           0x030b  /* get use-dma flag */
+#define TARGET_HDIO_DRIVE_CMD         0x031f  /* execute a special drive command */
+
+/* hd/ide ctl's that pass (arg) non-ptr values are numbered 0x032n/0x033n */
+#define TARGET_HDIO_SET_MULTCOUNT     0x0321  /* change IDE blockmode */
+#define TARGET_HDIO_SET_UNMASKINTR    0x0322  /* permit other irqs during I/O */
+#define TARGET_HDIO_SET_KEEPSETTINGS  0x0323  /* keep ioctl settings on reset */
+#define TARGET_HDIO_SET_32BIT         0x0324  /* change io_32bit flags */
+#define TARGET_HDIO_SET_NOWERR        0x0325  /* change ignore-write-error flag */
+#define TARGET_HDIO_SET_DMA           0x0326  /* change use-dma flag */
+#define TARGET_HDIO_SET_PIO_MODE      0x0327  /* reconfig interface to new speed */
diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h
new file mode 100644
index 0000000..63852d3
--- /dev/null
+++ b/linux-user/syscall_types.h
@@ -0,0 +1,64 @@
+STRUCT_SPECIAL(termios)
+
+STRUCT(winsize,
+       TYPE_SHORT, TYPE_SHORT, TYPE_SHORT, TYPE_SHORT)
+
+STRUCT(serial_multiport_struct,
+       TYPE_INT, TYPE_INT, TYPE_CHAR, TYPE_CHAR, TYPE_INT, TYPE_CHAR, TYPE_CHAR,
+       TYPE_INT, TYPE_CHAR, TYPE_CHAR, TYPE_INT, TYPE_CHAR, TYPE_CHAR, TYPE_INT, 
+       MK_ARRAY(TYPE_INT, 32))
+
+STRUCT(serial_icounter_struct,
+       TYPE_INT, TYPE_INT, TYPE_INT, TYPE_INT, MK_ARRAY(TYPE_INT, 16))
+
+STRUCT(sockaddr,
+       TYPE_SHORT, MK_ARRAY(TYPE_CHAR, 14))
+
+STRUCT(rtentry,
+       TYPE_ULONG, MK_STRUCT(STRUCT_sockaddr), MK_STRUCT(STRUCT_sockaddr), MK_STRUCT(STRUCT_sockaddr), 
+       TYPE_SHORT, TYPE_SHORT, TYPE_ULONG, TYPE_PTRVOID, TYPE_SHORT, TYPE_PTRVOID, 
+       TYPE_ULONG, TYPE_ULONG, TYPE_SHORT)
+
+STRUCT(ifmap,
+       TYPE_ULONG, TYPE_ULONG, TYPE_SHORT, TYPE_CHAR, TYPE_CHAR, TYPE_CHAR, 
+       /* Spare 3 bytes */
+       TYPE_CHAR, TYPE_CHAR, TYPE_CHAR)
+
+/* The *_ifreq_list arrays deal with the fact that struct ifreq has unions */
+
+STRUCT(sockaddr_ifreq,
+       MK_ARRAY(TYPE_CHAR, IFNAMSIZ), MK_STRUCT(STRUCT_sockaddr))
+     
+STRUCT(short_ifreq,
+       MK_ARRAY(TYPE_CHAR, IFNAMSIZ), TYPE_SHORT)
+
+STRUCT(int_ifreq,
+       MK_ARRAY(TYPE_CHAR, IFNAMSIZ), TYPE_INT)
+
+STRUCT(ifmap_ifreq,
+       MK_ARRAY(TYPE_CHAR, IFNAMSIZ), MK_STRUCT(STRUCT_ifmap))
+
+STRUCT(char_ifreq,
+       MK_ARRAY(TYPE_CHAR, IFNAMSIZ),
+       MK_ARRAY(TYPE_CHAR, IFNAMSIZ))
+
+STRUCT(ptr_ifreq,
+       MK_ARRAY(TYPE_CHAR, IFNAMSIZ), TYPE_PTRVOID)
+
+STRUCT(ifconf,
+       TYPE_INT, TYPE_PTRVOID)
+
+STRUCT(arpreq,
+       MK_STRUCT(STRUCT_sockaddr), MK_STRUCT(STRUCT_sockaddr), TYPE_INT, MK_STRUCT(STRUCT_sockaddr), 
+       MK_ARRAY(TYPE_CHAR, 16))
+
+STRUCT(arpreq_old,
+       MK_STRUCT(STRUCT_sockaddr), MK_STRUCT(STRUCT_sockaddr), TYPE_INT, MK_STRUCT(STRUCT_sockaddr))
+
+STRUCT(cdrom_read_audio,
+       TYPE_CHAR, TYPE_CHAR, TYPE_CHAR, TYPE_CHAR, TYPE_CHAR, TYPE_INT, TYPE_PTRVOID,
+       TYPE_NULL)
+
+STRUCT(hd_geometry,
+       TYPE_CHAR, TYPE_CHAR, TYPE_SHORT, TYPE_ULONG)
+
diff --git a/syscall-i386.h b/syscall-i386.h
new file mode 100644
index 0000000..312edc6
--- /dev/null
+++ b/syscall-i386.h
@@ -0,0 +1,760 @@
+/* from linux/unistd.h */
+
+#define TARGET_NR_exit		  1
+#define TARGET_NR_fork		  2
+#define TARGET_NR_read		  3
+#define TARGET_NR_write		  4
+#define TARGET_NR_open		  5
+#define TARGET_NR_close		  6
+#define TARGET_NR_waitpid		  7
+#define TARGET_NR_creat		  8
+#define TARGET_NR_link		  9
+#define TARGET_NR_unlink		 10
+#define TARGET_NR_execve		 11
+#define TARGET_NR_chdir		 12
+#define TARGET_NR_time		 13
+#define TARGET_NR_mknod		 14
+#define TARGET_NR_chmod		 15
+#define TARGET_NR_lchown		 16
+#define TARGET_NR_break		 17
+#define TARGET_NR_oldstat		 18
+#define TARGET_NR_lseek		 19
+#define TARGET_NR_getpid		 20
+#define TARGET_NR_mount		 21
+#define TARGET_NR_umount		 22
+#define TARGET_NR_setuid		 23
+#define TARGET_NR_getuid		 24
+#define TARGET_NR_stime		 25
+#define TARGET_NR_ptrace		 26
+#define TARGET_NR_alarm		 27
+#define TARGET_NR_oldfstat		 28
+#define TARGET_NR_pause		 29
+#define TARGET_NR_utime		 30
+#define TARGET_NR_stty		 31
+#define TARGET_NR_gtty		 32
+#define TARGET_NR_access		 33
+#define TARGET_NR_nice		 34
+#define TARGET_NR_ftime		 35
+#define TARGET_NR_sync		 36
+#define TARGET_NR_kill		 37
+#define TARGET_NR_rename		 38
+#define TARGET_NR_mkdir		 39
+#define TARGET_NR_rmdir		 40
+#define TARGET_NR_dup		 41
+#define TARGET_NR_pipe		 42
+#define TARGET_NR_times		 43
+#define TARGET_NR_prof		 44
+#define TARGET_NR_brk		 45
+#define TARGET_NR_setgid		 46
+#define TARGET_NR_getgid		 47
+#define TARGET_NR_signal		 48
+#define TARGET_NR_geteuid		 49
+#define TARGET_NR_getegid		 50
+#define TARGET_NR_acct		 51
+#define TARGET_NR_umount2		 52
+#define TARGET_NR_lock		 53
+#define TARGET_NR_ioctl		 54
+#define TARGET_NR_fcntl		 55
+#define TARGET_NR_mpx		 56
+#define TARGET_NR_setpgid		 57
+#define TARGET_NR_ulimit		 58
+#define TARGET_NR_oldolduname	 59
+#define TARGET_NR_umask		 60
+#define TARGET_NR_chroot		 61
+#define TARGET_NR_ustat		 62
+#define TARGET_NR_dup2		 63
+#define TARGET_NR_getppid		 64
+#define TARGET_NR_getpgrp		 65
+#define TARGET_NR_setsid		 66
+#define TARGET_NR_sigaction		 67
+#define TARGET_NR_sgetmask		 68
+#define TARGET_NR_ssetmask		 69
+#define TARGET_NR_setreuid		 70
+#define TARGET_NR_setregid		 71
+#define TARGET_NR_sigsuspend		 72
+#define TARGET_NR_sigpending		 73
+#define TARGET_NR_sethostname	 74
+#define TARGET_NR_setrlimit		 75
+#define TARGET_NR_getrlimit		 76	/* Back compatible 2Gig limited rlimit */
+#define TARGET_NR_getrusage		 77
+#define TARGET_NR_gettimeofday	 78
+#define TARGET_NR_settimeofday	 79
+#define TARGET_NR_getgroups		 80
+#define TARGET_NR_setgroups		 81
+#define TARGET_NR_select		 82
+#define TARGET_NR_symlink		 83
+#define TARGET_NR_oldlstat		 84
+#define TARGET_NR_readlink		 85
+#define TARGET_NR_uselib		 86
+#define TARGET_NR_swapon		 87
+#define TARGET_NR_reboot		 88
+#define TARGET_NR_readdir		 89
+#define TARGET_NR_mmap		 90
+#define TARGET_NR_munmap		 91
+#define TARGET_NR_truncate		 92
+#define TARGET_NR_ftruncate		 93
+#define TARGET_NR_fchmod		 94
+#define TARGET_NR_fchown		 95
+#define TARGET_NR_getpriority	 96
+#define TARGET_NR_setpriority	 97
+#define TARGET_NR_profil		 98
+#define TARGET_NR_statfs		 99
+#define TARGET_NR_fstatfs		100
+#define TARGET_NR_ioperm		101
+#define TARGET_NR_socketcall		102
+#define TARGET_NR_syslog		103
+#define TARGET_NR_setitimer		104
+#define TARGET_NR_getitimer		105
+#define TARGET_NR_stat		106
+#define TARGET_NR_lstat		107
+#define TARGET_NR_fstat		108
+#define TARGET_NR_olduname		109
+#define TARGET_NR_iopl		110
+#define TARGET_NR_vhangup		111
+#define TARGET_NR_idle		112
+#define TARGET_NR_vm86old		113
+#define TARGET_NR_wait4		114
+#define TARGET_NR_swapoff		115
+#define TARGET_NR_sysinfo		116
+#define TARGET_NR_ipc		117
+#define TARGET_NR_fsync		118
+#define TARGET_NR_sigreturn		119
+#define TARGET_NR_clone		120
+#define TARGET_NR_setdomainname	121
+#define TARGET_NR_uname		122
+#define TARGET_NR_modify_ldt		123
+#define TARGET_NR_adjtimex		124
+#define TARGET_NR_mprotect		125
+#define TARGET_NR_sigprocmask	126
+#define TARGET_NR_create_module	127
+#define TARGET_NR_init_module	128
+#define TARGET_NR_delete_module	129
+#define TARGET_NR_get_kernel_syms	130
+#define TARGET_NR_quotactl		131
+#define TARGET_NR_getpgid		132
+#define TARGET_NR_fchdir		133
+#define TARGET_NR_bdflush		134
+#define TARGET_NR_sysfs		135
+#define TARGET_NR_personality	136
+#define TARGET_NR_afs_syscall	137 /* Syscall for Andrew File System */
+#define TARGET_NR_setfsuid		138
+#define TARGET_NR_setfsgid		139
+#define TARGET_NR__llseek		140
+#define TARGET_NR_getdents		141
+#define TARGET_NR__newselect		142
+#define TARGET_NR_flock		143
+#define TARGET_NR_msync		144
+#define TARGET_NR_readv		145
+#define TARGET_NR_writev		146
+#define TARGET_NR_getsid		147
+#define TARGET_NR_fdatasync		148
+#define TARGET_NR__sysctl		149
+#define TARGET_NR_mlock		150
+#define TARGET_NR_munlock		151
+#define TARGET_NR_mlockall		152
+#define TARGET_NR_munlockall		153
+#define TARGET_NR_sched_setparam		154
+#define TARGET_NR_sched_getparam		155
+#define TARGET_NR_sched_setscheduler		156
+#define TARGET_NR_sched_getscheduler		157
+#define TARGET_NR_sched_yield		158
+#define TARGET_NR_sched_get_priority_max	159
+#define TARGET_NR_sched_get_priority_min	160
+#define TARGET_NR_sched_rr_get_interval	161
+#define TARGET_NR_nanosleep		162
+#define TARGET_NR_mremap		163
+#define TARGET_NR_setresuid		164
+#define TARGET_NR_getresuid		165
+#define TARGET_NR_vm86		166
+#define TARGET_NR_query_module	167
+#define TARGET_NR_poll		168
+#define TARGET_NR_nfsservctl		169
+#define TARGET_NR_setresgid		170
+#define TARGET_NR_getresgid		171
+#define TARGET_NR_prctl              172
+#define TARGET_NR_rt_sigreturn	173
+#define TARGET_NR_rt_sigaction	174
+#define TARGET_NR_rt_sigprocmask	175
+#define TARGET_NR_rt_sigpending	176
+#define TARGET_NR_rt_sigtimedwait	177
+#define TARGET_NR_rt_sigqueueinfo	178
+#define TARGET_NR_rt_sigsuspend	179
+#define TARGET_NR_pread		180
+#define TARGET_NR_pwrite		181
+#define TARGET_NR_chown		182
+#define TARGET_NR_getcwd		183
+#define TARGET_NR_capget		184
+#define TARGET_NR_capset		185
+#define TARGET_NR_sigaltstack	186
+#define TARGET_NR_sendfile		187
+#define TARGET_NR_getpmsg		188	/* some people actually want streams */
+#define TARGET_NR_putpmsg		189	/* some people actually want streams */
+#define TARGET_NR_vfork		190
+#define TARGET_NR_ugetrlimit		191	/* SuS compliant getrlimit */
+#define TARGET_NR_mmap2		192
+#define TARGET_NR_truncate64		193
+#define TARGET_NR_ftruncate64	194
+#define TARGET_NR_stat64		195
+#define TARGET_NR_lstat64		196
+#define TARGET_NR_fstat64		197
+#define TARGET_NR_lchown32		198
+#define TARGET_NR_getuid32		199
+#define TARGET_NR_getgid32		200
+#define TARGET_NR_geteuid32		201
+#define TARGET_NR_getegid32		202
+#define TARGET_NR_setreuid32		203
+#define TARGET_NR_setregid32		204
+#define TARGET_NR_getgroups32	205
+#define TARGET_NR_setgroups32	206
+#define TARGET_NR_fchown32		207
+#define TARGET_NR_setresuid32	208
+#define TARGET_NR_getresuid32	209
+#define TARGET_NR_setresgid32	210
+#define TARGET_NR_getresgid32	211
+#define TARGET_NR_chown32		212
+#define TARGET_NR_setuid32		213
+#define TARGET_NR_setgid32		214
+#define TARGET_NR_setfsuid32		215
+#define TARGET_NR_setfsgid32		216
+#define TARGET_NR_pivot_root		217
+#define TARGET_NR_mincore		218
+#define TARGET_NR_madvise		219
+#define TARGET_NR_madvise1		219	/* delete when C lib stub is removed */
+#define TARGET_NR_getdents64		220
+#define TARGET_NR_fcntl64		221
+#define TARGET_NR_security		223	/* syscall for security modules */
+#define TARGET_NR_gettid		224
+#define TARGET_NR_readahead		225
+#define TARGET_NR_setxattr		226
+#define TARGET_NR_lsetxattr		227
+#define TARGET_NR_fsetxattr		228
+#define TARGET_NR_getxattr		229
+#define TARGET_NR_lgetxattr		230
+#define TARGET_NR_fgetxattr		231
+#define TARGET_NR_listxattr		232
+#define TARGET_NR_llistxattr		233
+#define TARGET_NR_flistxattr		234
+#define TARGET_NR_removexattr	235
+#define TARGET_NR_lremovexattr	236
+#define TARGET_NR_fremovexattr	237
+
+#define TARGET_SIG_BLOCK          0    /* for blocking signals */
+#define TARGET_SIG_UNBLOCK        1    /* for unblocking signals */
+#define TARGET_SIG_SETMASK        2    /* for setting the signal mask */
+
+struct target_stat {
+	unsigned short st_dev;
+	unsigned short __pad1;
+	unsigned long st_ino;
+	unsigned short st_mode;
+	unsigned short st_nlink;
+	unsigned short st_uid;
+	unsigned short st_gid;
+	unsigned short st_rdev;
+	unsigned short __pad2;
+	unsigned long  st_size;
+	unsigned long  st_blksize;
+	unsigned long  st_blocks;
+	unsigned long  st_atime;
+	unsigned long  __unused1;
+	unsigned long  st_mtime;
+	unsigned long  __unused2;
+	unsigned long  st_ctime;
+	unsigned long  __unused3;
+	unsigned long  __unused4;
+	unsigned long  __unused5;
+};
+
+/* This matches struct stat64 in glibc2.1, hence the absolutely
+ * insane amounts of padding around dev_t's.
+ */
+struct target_stat64 {
+	unsigned short	st_dev;
+	unsigned char	__pad0[10];
+
+#define STAT64_HAS_BROKEN_ST_INO	1
+	unsigned long	__st_ino;
+
+	unsigned int	st_mode;
+	unsigned int	st_nlink;
+
+	unsigned long	st_uid;
+	unsigned long	st_gid;
+
+	unsigned short	st_rdev;
+	unsigned char	__pad3[10];
+
+	long long	st_size;
+	unsigned long	st_blksize;
+
+	unsigned long	st_blocks;	/* Number 512-byte blocks allocated. */
+	unsigned long	__pad4;		/* future possible st_blocks high bits */
+
+	unsigned long	st_atime;
+	unsigned long	__pad5;
+
+	unsigned long	st_mtime;
+	unsigned long	__pad6;
+
+	unsigned long	st_ctime;
+	unsigned long	__pad7;		/* will be high 32 bits of ctime someday */
+
+	unsigned long long	st_ino;
+};
+
+typedef unsigned long old_sigset_t;		/* at least 32 bits */
+
+struct target_old_sigaction {
+        target_ulong _sa_handler;
+        target_ulong sa_mask;
+        target_ulong sa_flags;
+        void (*sa_restorer)(void);
+};
+
+struct target_sigaction {
+        target_ulong _sa_handler;
+        target_sigset_t sa_mask;
+        target_ulong sa_flags;
+        target_ulong sa_restorer;
+};
+
+typedef union target_sigval {
+	int sival_int;
+	void *sival_ptr;
+} target_sigval_t;
+
+#define TARGET_SI_MAX_SIZE	128
+#define TARGET_SI_PAD_SIZE	((TARGET_SI_MAX_SIZE/sizeof(int)) - 3)
+
+typedef struct target_siginfo {
+	int si_signo;
+	int si_errno;
+	int si_code;
+
+	union {
+		int _pad[TARGET_SI_PAD_SIZE];
+
+		/* kill() */
+		struct {
+			pid_t _pid;		/* sender's pid */
+			uid_t _uid;		/* sender's uid */
+		} _kill;
+
+		/* POSIX.1b timers */
+		struct {
+			unsigned int _timer1;
+			unsigned int _timer2;
+		} _timer;
+
+		/* POSIX.1b signals */
+		struct {
+			pid_t _pid;		/* sender's pid */
+			uid_t _uid;		/* sender's uid */
+			sigval_t _sigval;
+		} _rt;
+
+		/* SIGCHLD */
+		struct {
+			pid_t _pid;		/* which child */
+			uid_t _uid;		/* sender's uid */
+			int _status;		/* exit code */
+			clock_t _utime;
+			clock_t _stime;
+		} _sigchld;
+
+		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+		struct {
+			void *_addr; /* faulting insn/memory ref. */
+		} _sigfault;
+
+		/* SIGPOLL */
+		struct {
+			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
+			int _fd;
+		} _sigpoll;
+	} _sifields;
+} target_siginfo_t;
+
+/* ioctls */
+
+/*
+ * The following is for compatibility across the various Linux
+ * platforms.  The i386 ioctl numbering scheme doesn't really enforce
+ * a type field.  De facto, however, the top 8 bits of the lower 16
+ * bits are indeed used as a type field, so we might just as well make
+ * this explicit here.  Please be sure to use the decoding macros
+ * below from now on.
+ */
+#define TARGET_IOC_NRBITS	8
+#define TARGET_IOC_TYPEBITS	8
+#define TARGET_IOC_SIZEBITS	14
+#define TARGET_IOC_DIRBITS	2
+
+#define TARGET_IOC_NRMASK	((1 << TARGET_IOC_NRBITS)-1)
+#define TARGET_IOC_TYPEMASK	((1 << TARGET_IOC_TYPEBITS)-1)
+#define TARGET_IOC_SIZEMASK	((1 << TARGET_IOC_SIZEBITS)-1)
+#define TARGET_IOC_DIRMASK	((1 << TARGET_IOC_DIRBITS)-1)
+
+#define TARGET_IOC_NRSHIFT	0
+#define TARGET_IOC_TYPESHIFT	(TARGET_IOC_NRSHIFT+TARGET_IOC_NRBITS)
+#define TARGET_IOC_SIZESHIFT	(TARGET_IOC_TYPESHIFT+TARGET_IOC_TYPEBITS)
+#define TARGET_IOC_DIRSHIFT	(TARGET_IOC_SIZESHIFT+TARGET_IOC_SIZEBITS)
+
+/*
+ * Direction bits.
+ */
+#define TARGET_IOC_NONE	0U
+#define TARGET_IOC_WRITE	1U
+#define TARGET_IOC_READ	2U
+
+#define TARGET_IOC(dir,type,nr,size) \
+	(((dir)  << TARGET_IOC_DIRSHIFT) | \
+	 ((type) << TARGET_IOC_TYPESHIFT) | \
+	 ((nr)   << TARGET_IOC_NRSHIFT) | \
+	 ((size) << TARGET_IOC_SIZESHIFT))
+
+/* used to create numbers */
+#define TARGET_IO(type,nr)		TARGET_IOC(TARGET_IOC_NONE,(type),(nr),0)
+#define TARGET_IOR(type,nr,size)	TARGET_IOC(TARGET_IOC_READ,(type),(nr),sizeof(size))
+#define TARGET_IOW(type,nr,size)	TARGET_IOC(TARGET_IOC_WRITE,(type),(nr),sizeof(size))
+#define TARGET_IOWR(type,nr,size)	TARGET_IOC(TARGET_IOC_READ|TARGET_IOC_WRITE,(type),(nr),sizeof(size))
+
+/* 0x54 is just a magic number to make these relatively unique ('T') */
+
+#define TARGET_TCGETS		0x5401
+#define TARGET_TCSETS		0x5402
+#define TARGET_TCSETSW		0x5403
+#define TARGET_TCSETSF		0x5404
+#define TARGET_TCGETA		0x5405
+#define TARGET_TCSETA		0x5406
+#define TARGET_TCSETAW		0x5407
+#define TARGET_TCSETAF		0x5408
+#define TARGET_TCSBRK		0x5409
+#define TARGET_TCXONC		0x540A
+#define TARGET_TCFLSH		0x540B
+#define TARGET_TIOCEXCL	0x540C
+#define TARGET_TIOCNXCL	0x540D
+#define TARGET_TIOCSCTTY	0x540E
+#define TARGET_TIOCGPGRP	0x540F
+#define TARGET_TIOCSPGRP	0x5410
+#define TARGET_TIOCOUTQ	0x5411
+#define TARGET_TIOCSTI		0x5412
+#define TARGET_TIOCGWINSZ	0x5413
+#define TARGET_TIOCSWINSZ	0x5414
+#define TARGET_TIOCMGET	0x5415
+#define TARGET_TIOCMBIS	0x5416
+#define TARGET_TIOCMBIC	0x5417
+#define TARGET_TIOCMSET	0x5418
+#define TARGET_TIOCGSOFTCAR	0x5419
+#define TARGET_TIOCSSOFTCAR	0x541A
+#define TARGET_FIONREAD	0x541B
+#define TARGET_TIOCINQ		FIONREAD
+#define TARGET_TIOCLINUX	0x541C
+#define TARGET_TIOCCONS	0x541D
+#define TARGET_TIOCGSERIAL	0x541E
+#define TARGET_TIOCSSERIAL	0x541F
+#define TARGET_TIOCPKT		0x5420
+#define TARGET_FIONBIO		0x5421
+#define TARGET_TIOCNOTTY	0x5422
+#define TARGET_TIOCSETD	0x5423
+#define TARGET_TIOCGETD	0x5424
+#define TARGET_TCSBRKP		0x5425	/* Needed for POSIX tcsendbreak() */
+#define TARGET_TIOCTTYGSTRUCT	0x5426  /* For debugging only */
+#define TARGET_TIOCSBRK	0x5427  /* BSD compatibility */
+#define TARGET_TIOCCBRK	0x5428  /* BSD compatibility */
+#define TARGET_TIOCGSID	0x5429  /* Return the session ID of FD */
+#define TARGET_TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
+#define TARGET_TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
+
+#define TARGET_FIONCLEX	0x5450  /* these numbers need to be adjusted. */
+#define TARGET_FIOCLEX		0x5451
+#define TARGET_FIOASYNC	0x5452
+#define TARGET_TIOCSERCONFIG	0x5453
+#define TARGET_TIOCSERGWILD	0x5454
+#define TARGET_TIOCSERSWILD	0x5455
+#define TARGET_TIOCGLCKTRMIOS	0x5456
+#define TARGET_TIOCSLCKTRMIOS	0x5457
+#define TARGET_TIOCSERGSTRUCT	0x5458 /* For debugging only */
+#define TARGET_TIOCSERGETLSR   0x5459 /* Get line status register */
+#define TARGET_TIOCSERGETMULTI 0x545A /* Get multiport config  */
+#define TARGET_TIOCSERSETMULTI 0x545B /* Set multiport config */
+
+#define TARGET_TIOCMIWAIT	0x545C	/* wait for a change on serial input line(s) */
+#define TARGET_TIOCGICOUNT	0x545D	/* read serial port inline interrupt counts */
+#define TARGET_TIOCGHAYESESP   0x545E  /* Get Hayes ESP configuration */
+#define TARGET_TIOCSHAYESESP   0x545F  /* Set Hayes ESP configuration */
+
+/* Used for packet mode */
+#define TARGET_TIOCPKT_DATA		 0
+#define TARGET_TIOCPKT_FLUSHREAD	 1
+#define TARGET_TIOCPKT_FLUSHWRITE	 2
+#define TARGET_TIOCPKT_STOP		 4
+#define TARGET_TIOCPKT_START		 8
+#define TARGET_TIOCPKT_NOSTOP		16
+#define TARGET_TIOCPKT_DOSTOP		32
+
+#define TARGET_TIOCSER_TEMT    0x01	/* Transmitter physically empty */
+
+/* from asm/termbits.h */
+
+#define TARGET_NCCS 19
+
+struct target_termios {
+    unsigned int c_iflag;               /* input mode flags */
+    unsigned int c_oflag;               /* output mode flags */
+    unsigned int c_cflag;               /* control mode flags */
+    unsigned int c_lflag;               /* local mode flags */
+    unsigned char c_line;                    /* line discipline */
+    unsigned char c_cc[TARGET_NCCS];                /* control characters */
+};
+
+/* c_iflag bits */
+#define TARGET_IGNBRK  0000001
+#define TARGET_BRKINT  0000002
+#define TARGET_IGNPAR  0000004
+#define TARGET_PARMRK  0000010
+#define TARGET_INPCK   0000020
+#define TARGET_ISTRIP  0000040
+#define TARGET_INLCR   0000100
+#define TARGET_IGNCR   0000200
+#define TARGET_ICRNL   0000400
+#define TARGET_IUCLC   0001000
+#define TARGET_IXON    0002000
+#define TARGET_IXANY   0004000
+#define TARGET_IXOFF   0010000
+#define TARGET_IMAXBEL 0020000
+
+/* c_oflag bits */
+#define TARGET_OPOST   0000001
+#define TARGET_OLCUC   0000002
+#define TARGET_ONLCR   0000004
+#define TARGET_OCRNL   0000010
+#define TARGET_ONOCR   0000020
+#define TARGET_ONLRET  0000040
+#define TARGET_OFILL   0000100
+#define TARGET_OFDEL   0000200
+#define TARGET_NLDLY   0000400
+#define   TARGET_NL0   0000000
+#define   TARGET_NL1   0000400
+#define TARGET_CRDLY   0003000
+#define   TARGET_CR0   0000000
+#define   TARGET_CR1   0001000
+#define   TARGET_CR2   0002000
+#define   TARGET_CR3   0003000
+#define TARGET_TABDLY  0014000
+#define   TARGET_TAB0  0000000
+#define   TARGET_TAB1  0004000
+#define   TARGET_TAB2  0010000
+#define   TARGET_TAB3  0014000
+#define   TARGET_XTABS 0014000
+#define TARGET_BSDLY   0020000
+#define   TARGET_BS0   0000000
+#define   TARGET_BS1   0020000
+#define TARGET_VTDLY   0040000
+#define   TARGET_VT0   0000000
+#define   TARGET_VT1   0040000
+#define TARGET_FFDLY   0100000
+#define   TARGET_FF0   0000000
+#define   TARGET_FF1   0100000
+
+/* c_cflag bit meaning */
+#define TARGET_CBAUD   0010017
+#define  TARGET_B0     0000000         /* hang up */
+#define  TARGET_B50    0000001
+#define  TARGET_B75    0000002
+#define  TARGET_B110   0000003
+#define  TARGET_B134   0000004
+#define  TARGET_B150   0000005
+#define  TARGET_B200   0000006
+#define  TARGET_B300   0000007
+#define  TARGET_B600   0000010
+#define  TARGET_B1200  0000011
+#define  TARGET_B1800  0000012
+#define  TARGET_B2400  0000013
+#define  TARGET_B4800  0000014
+#define  TARGET_B9600  0000015
+#define  TARGET_B19200 0000016
+#define  TARGET_B38400 0000017
+#define TARGET_EXTA B19200
+#define TARGET_EXTB B38400
+#define TARGET_CSIZE   0000060
+#define   TARGET_CS5   0000000
+#define   TARGET_CS6   0000020
+#define   TARGET_CS7   0000040
+#define   TARGET_CS8   0000060
+#define TARGET_CSTOPB  0000100
+#define TARGET_CREAD   0000200
+#define TARGET_PARENB  0000400
+#define TARGET_PARODD  0001000
+#define TARGET_HUPCL   0002000
+#define TARGET_CLOCAL  0004000
+#define TARGET_CBAUDEX 0010000
+#define  TARGET_B57600  0010001
+#define  TARGET_B115200 0010002
+#define  TARGET_B230400 0010003
+#define  TARGET_B460800 0010004
+#define TARGET_CIBAUD    002003600000  /* input baud rate (not used) */
+#define TARGET_CRTSCTS   020000000000          /* flow control */
+
+/* c_lflag bits */
+#define TARGET_ISIG    0000001
+#define TARGET_ICANON  0000002
+#define TARGET_XCASE   0000004
+#define TARGET_ECHO    0000010
+#define TARGET_ECHOE   0000020
+#define TARGET_ECHOK   0000040
+#define TARGET_ECHONL  0000100
+#define TARGET_NOFLSH  0000200
+#define TARGET_TOSTOP  0000400
+#define TARGET_ECHOCTL 0001000
+#define TARGET_ECHOPRT 0002000
+#define TARGET_ECHOKE  0004000
+#define TARGET_FLUSHO  0010000
+#define TARGET_PENDIN  0040000
+#define TARGET_IEXTEN  0100000
+
+/* c_cc character offsets */
+#define TARGET_VINTR	0
+#define TARGET_VQUIT	1
+#define TARGET_VERASE	2
+#define TARGET_VKILL	3
+#define TARGET_VEOF	4
+#define TARGET_VTIME	5
+#define TARGET_VMIN	6
+#define TARGET_VSWTC	7
+#define TARGET_VSTART	8
+#define TARGET_VSTOP	9
+#define TARGET_VSUSP	10
+#define TARGET_VEOL	11
+#define TARGET_VREPRINT	12
+#define TARGET_VDISCARD	13
+#define TARGET_VWERASE	14
+#define TARGET_VLNEXT	15
+#define TARGET_VEOL2	16
+
+/* soundcard defines (XXX: move them to generic file syscall_defs.h) */
+
+#define TARGET_SNDCTL_COPR_HALT           0xc0144307
+#define TARGET_SNDCTL_COPR_LOAD           0xcfb04301
+#define TARGET_SNDCTL_COPR_RCODE          0xc0144303
+#define TARGET_SNDCTL_COPR_RCVMSG         0x8fa44309
+#define TARGET_SNDCTL_COPR_RDATA          0xc0144302
+#define TARGET_SNDCTL_COPR_RESET          0x00004300
+#define TARGET_SNDCTL_COPR_RUN            0xc0144306
+#define TARGET_SNDCTL_COPR_SENDMSG        0xcfa44308
+#define TARGET_SNDCTL_COPR_WCODE          0x40144305
+#define TARGET_SNDCTL_COPR_WDATA          0x40144304
+#define TARGET_SNDCTL_DSP_CHANNELS        0xc0045006
+#define TARGET_SNDCTL_DSP_GETBLKSIZE      0xc0045004
+#define TARGET_SNDCTL_DSP_GETCAPS         0x8004500f
+#define TARGET_SNDCTL_DSP_GETFMTS         0x8004500b
+#define TARGET_SNDCTL_DSP_GETIPTR         0x800c5011
+#define TARGET_SNDCTL_DSP_GETISPACE       0x8010500d
+#define TARGET_SNDCTL_DSP_GETOPTR         0x800c5012
+#define TARGET_SNDCTL_DSP_GETOSPACE       0x8010500c
+#define TARGET_SNDCTL_DSP_GETTRIGGER      0x80045010
+#define TARGET_SNDCTL_DSP_MAPINBUF        0x80085013
+#define TARGET_SNDCTL_DSP_MAPOUTBUF       0x80085014
+#define TARGET_SNDCTL_DSP_NONBLOCK        0x0000500e
+#define TARGET_SNDCTL_DSP_POST            0x00005008
+#define TARGET_SNDCTL_DSP_RESET           0x00005000
+#define TARGET_SNDCTL_DSP_SAMPLESIZE      0xc0045005
+#define TARGET_SNDCTL_DSP_SETDUPLEX       0x00005016
+#define TARGET_SNDCTL_DSP_SETFMT          0xc0045005
+#define TARGET_SNDCTL_DSP_SETFRAGMENT     0xc004500a
+#define TARGET_SNDCTL_DSP_SETSYNCRO       0x00005015
+#define TARGET_SNDCTL_DSP_SETTRIGGER      0x40045010
+#define TARGET_SNDCTL_DSP_SPEED           0xc0045002
+#define TARGET_SNDCTL_DSP_STEREO          0xc0045003
+#define TARGET_SNDCTL_DSP_SUBDIVIDE       0xc0045009
+#define TARGET_SNDCTL_DSP_SYNC            0x00005001
+#define TARGET_SNDCTL_FM_4OP_ENABLE       0x4004510f
+#define TARGET_SNDCTL_FM_LOAD_INSTR       0x40285107
+#define TARGET_SNDCTL_MIDI_INFO           0xc074510c
+#define TARGET_SNDCTL_MIDI_MPUCMD         0xc0216d02
+#define TARGET_SNDCTL_MIDI_MPUMODE        0xc0046d01
+#define TARGET_SNDCTL_MIDI_PRETIME        0xc0046d00
+#define TARGET_SNDCTL_PMGR_ACCESS         0xcfb85110
+#define TARGET_SNDCTL_PMGR_IFACE          0xcfb85001
+#define TARGET_SNDCTL_SEQ_CTRLRATE        0xc0045103
+#define TARGET_SNDCTL_SEQ_GETINCOUNT      0x80045105
+#define TARGET_SNDCTL_SEQ_GETOUTCOUNT     0x80045104
+#define TARGET_SNDCTL_SEQ_NRMIDIS         0x8004510b
+#define TARGET_SNDCTL_SEQ_NRSYNTHS        0x8004510a
+#define TARGET_SNDCTL_SEQ_OUTOFBAND       0x40085112
+#define TARGET_SNDCTL_SEQ_PANIC           0x00005111
+#define TARGET_SNDCTL_SEQ_PERCMODE        0x40045106
+#define TARGET_SNDCTL_SEQ_RESET           0x00005100
+#define TARGET_SNDCTL_SEQ_RESETSAMPLES    0x40045109
+#define TARGET_SNDCTL_SEQ_SYNC            0x00005101
+#define TARGET_SNDCTL_SEQ_TESTMIDI        0x40045108
+#define TARGET_SNDCTL_SEQ_THRESHOLD       0x4004510d
+#define TARGET_SNDCTL_SEQ_TRESHOLD        0x4004510d
+#define TARGET_SNDCTL_SYNTH_INFO          0xc08c5102
+#define TARGET_SNDCTL_SYNTH_MEMAVL        0xc004510e
+#define TARGET_SNDCTL_TMR_CONTINUE        0x00005404
+#define TARGET_SNDCTL_TMR_METRONOME       0x40045407
+#define TARGET_SNDCTL_TMR_SELECT          0x40045408
+#define TARGET_SNDCTL_TMR_SOURCE          0xc0045406
+#define TARGET_SNDCTL_TMR_START           0x00005402
+#define TARGET_SNDCTL_TMR_STOP            0x00005403
+#define TARGET_SNDCTL_TMR_TEMPO           0xc0045405
+#define TARGET_SNDCTL_TMR_TIMEBASE        0xc0045401
+#define TARGET_SOUND_PCM_WRITE_FILTER     0xc0045007
+#define TARGET_SOUND_PCM_READ_RATE        0x80045002
+#define TARGET_SOUND_PCM_READ_CHANNELS    0x80045006
+#define TARGET_SOUND_PCM_READ_BITS        0x80045005
+#define TARGET_SOUND_PCM_READ_FILTER      0x80045007
+#define TARGET_SOUND_MIXER_INFO           0x80304d65
+#define TARGET_SOUND_MIXER_ACCESS         0xc0804d66
+#define TARGET_SOUND_MIXER_PRIVATE1       0xc0044d6f
+#define TARGET_SOUND_MIXER_PRIVATE2       0xc0044d70
+#define TARGET_SOUND_MIXER_PRIVATE3       0xc0044d71
+#define TARGET_SOUND_MIXER_PRIVATE4       0xc0044d72
+#define TARGET_SOUND_MIXER_PRIVATE5       0xc0044d73
+#define TARGET_SOUND_MIXER_READ_VOLUME    0x80044d00
+#define TARGET_SOUND_MIXER_READ_BASS      0x80044d01
+#define TARGET_SOUND_MIXER_READ_TREBLE    0x80044d02
+#define TARGET_SOUND_MIXER_READ_SYNTH     0x80044d03
+#define TARGET_SOUND_MIXER_READ_PCM       0x80044d04
+#define TARGET_SOUND_MIXER_READ_SPEAKER   0x80044d05
+#define TARGET_SOUND_MIXER_READ_LINE      0x80044d06
+#define TARGET_SOUND_MIXER_READ_MIC       0x80044d07
+#define TARGET_SOUND_MIXER_READ_CD        0x80044d08
+#define TARGET_SOUND_MIXER_READ_IMIX      0x80044d09
+#define TARGET_SOUND_MIXER_READ_ALTPCM    0x80044d0a
+#define TARGET_SOUND_MIXER_READ_RECLEV    0x80044d0b
+#define TARGET_SOUND_MIXER_READ_IGAIN     0x80044d0c
+#define TARGET_SOUND_MIXER_READ_OGAIN     0x80044d0d
+#define TARGET_SOUND_MIXER_READ_LINE1     0x80044d0e
+#define TARGET_SOUND_MIXER_READ_LINE2     0x80044d0f
+#define TARGET_SOUND_MIXER_READ_LINE3     0x80044d10
+#define TARGET_SOUND_MIXER_READ_MUTE      0x80044d1f
+#define TARGET_SOUND_MIXER_READ_ENHANCE   0x80044d1f
+#define TARGET_SOUND_MIXER_READ_LOUD      0x80044d1f
+#define TARGET_SOUND_MIXER_READ_RECSRC    0x80044dff
+#define TARGET_SOUND_MIXER_READ_DEVMASK   0x80044dfe
+#define TARGET_SOUND_MIXER_READ_RECMASK   0x80044dfd
+#define TARGET_SOUND_MIXER_READ_STEREODEVS  0x80044dfb
+#define TARGET_SOUND_MIXER_READ_CAPS      0x80044dfc
+#define TARGET_SOUND_MIXER_WRITE_VOLUME   0xc0044d00
+#define TARGET_SOUND_MIXER_WRITE_BASS     0xc0044d01
+#define TARGET_SOUND_MIXER_WRITE_TREBLE   0xc0044d02
+#define TARGET_SOUND_MIXER_WRITE_SYNTH    0xc0044d03
+#define TARGET_SOUND_MIXER_WRITE_PCM      0xc0044d04
+#define TARGET_SOUND_MIXER_WRITE_SPEAKER  0xc0044d05
+#define TARGET_SOUND_MIXER_WRITE_LINE     0xc0044d06
+#define TARGET_SOUND_MIXER_WRITE_MIC      0xc0044d07
+#define TARGET_SOUND_MIXER_WRITE_CD       0xc0044d08
+#define TARGET_SOUND_MIXER_WRITE_IMIX     0xc0044d09
+#define TARGET_SOUND_MIXER_WRITE_ALTPCM   0xc0044d0a
+#define TARGET_SOUND_MIXER_WRITE_RECLEV   0xc0044d0b
+#define TARGET_SOUND_MIXER_WRITE_IGAIN    0xc0044d0c
+#define TARGET_SOUND_MIXER_WRITE_OGAIN    0xc0044d0d
+#define TARGET_SOUND_MIXER_WRITE_LINE1    0xc0044d0e
+#define TARGET_SOUND_MIXER_WRITE_LINE2    0xc0044d0f
+#define TARGET_SOUND_MIXER_WRITE_LINE3    0xc0044d10
+#define TARGET_SOUND_MIXER_WRITE_MUTE     0xc0044d1f
+#define TARGET_SOUND_MIXER_WRITE_ENHANCE  0xc0044d1f
+#define TARGET_SOUND_MIXER_WRITE_LOUD     0xc0044d1f
+#define TARGET_SOUND_MIXER_WRITE_RECSRC   0xc0044dff
diff --git a/thunk.c b/thunk.c
new file mode 100644
index 0000000..62520a2
--- /dev/null
+++ b/thunk.c
@@ -0,0 +1,315 @@
+/*
+ *  Generic thunking code to convert data between host and target CPU
+ * 
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "gemu.h"
+#include "thunk.h"
+
+//#define DEBUG
+
+#define MAX_STRUCTS 128
+
+/* XXX: make it dynamic */
+static StructEntry struct_entries[MAX_STRUCTS];
+
+static inline int thunk_type_size(const argtype *type_ptr, int is_host)
+{
+    int type, size;
+    const StructEntry *se;
+
+    type = *type_ptr;
+    switch(type) {
+    case TYPE_CHAR:
+        return 1;
+    case TYPE_SHORT:
+        return 2;
+    case TYPE_INT:
+        return 4;
+    case TYPE_LONGLONG:
+    case TYPE_ULONGLONG:
+        return 8;
+    case TYPE_LONG:
+    case TYPE_ULONG:
+    case TYPE_PTRVOID:
+    case TYPE_PTR:
+        if (is_host) {
+            return HOST_LONG_SIZE;
+        } else {
+            return TARGET_LONG_SIZE;
+        }
+        break;
+    case TYPE_ARRAY:
+        size = type_ptr[1];
+        return size * thunk_type_size(type_ptr + 2, is_host);
+    case TYPE_STRUCT:
+        se = struct_entries + type_ptr[1];
+        return se->size[is_host];
+    default:
+        return -1;
+    }
+}
+
+static inline int thunk_type_align(const argtype *type_ptr, int is_host)
+{
+    int type;
+    const StructEntry *se;
+
+    type = *type_ptr;
+    switch(type) {
+    case TYPE_CHAR:
+        return 1;
+    case TYPE_SHORT:
+        return 2;
+    case TYPE_INT:
+        return 4;
+    case TYPE_LONGLONG:
+    case TYPE_ULONGLONG:
+        return 8;
+    case TYPE_LONG:
+    case TYPE_ULONG:
+    case TYPE_PTRVOID:
+    case TYPE_PTR:
+        if (is_host) {
+            return HOST_LONG_SIZE;
+        } else {
+            return TARGET_LONG_SIZE;
+        }
+        break;
+    case TYPE_ARRAY:
+        return thunk_type_align(type_ptr + 2, is_host);
+    case TYPE_STRUCT:
+        se = struct_entries + type_ptr[1];
+        return se->align[is_host];
+    default:
+        return -1;
+    }
+}
+
+static inline const argtype *thunk_type_next(const argtype *type_ptr)
+{
+    int type;
+
+    type = *type_ptr++;
+    switch(type) {
+    case TYPE_CHAR:
+    case TYPE_SHORT:
+    case TYPE_INT:
+    case TYPE_LONGLONG:
+    case TYPE_ULONGLONG:
+    case TYPE_LONG:
+    case TYPE_ULONG:
+    case TYPE_PTRVOID:
+        return type_ptr;
+    case TYPE_PTR:
+        return thunk_type_next(type_ptr);
+    case TYPE_ARRAY:
+        return thunk_type_next(type_ptr + 1);
+    case TYPE_STRUCT:
+        return type_ptr + 1;
+    default:
+        return NULL;
+    }
+}
+
+void thunk_register_struct(int id, const char *name, const argtype *types)
+{
+    const argtype *type_ptr;
+    StructEntry *se;
+    int nb_fields, offset, max_align, align, size, i, j;
+
+    se = struct_entries + id;
+    
+    /* first we count the number of fields */
+    type_ptr = types;
+    nb_fields = 0;
+    while (*type_ptr != TYPE_NULL) {
+        type_ptr = thunk_type_next(type_ptr);
+        nb_fields++;
+    }
+    se->field_types = types;
+    se->nb_fields = nb_fields;
+    se->name = name;
+#ifdef DEBUG
+    printf("struct %s: id=%d nb_fields=%d\n", 
+           se->name, id, se->nb_fields);
+#endif
+    /* now we can alloc the data */
+
+    for(i = 0;i < 2; i++) {
+        offset = 0;
+        max_align = 1;
+        se->field_offsets[i] = malloc(nb_fields * sizeof(int));
+        type_ptr = se->field_types;
+        for(j = 0;j < nb_fields; j++) {
+            size = thunk_type_size(type_ptr, i);
+            align = thunk_type_align(type_ptr, i);
+            offset = (offset + align - 1) & ~(align - 1);
+            se->field_offsets[i][j] = offset;
+            offset += size;
+            if (align > max_align)
+                max_align = align;
+        }
+        offset = (offset + max_align - 1) & ~(max_align - 1);
+        se->size[i] = offset;
+        se->align[i] = max_align;
+#ifdef DEBUG
+        printf("%s: size=%d align=%d\n", 
+               i == THUNK_HOST ? "host" : "target", offset, max_align);
+#endif
+    }
+}
+
+void thunk_register_struct_direct(int id, const char *name, StructEntry *se1)
+{
+    StructEntry *se;
+    se = struct_entries + id;
+    *se = *se1;
+    se->name = name;
+}
+
+
+/* now we can define the main conversion functions */
+const argtype *thunk_convert(void *dst, const void *src, 
+                             const argtype *type_ptr, int to_host)
+{
+    int type;
+
+    type = *type_ptr++;
+    switch(type) {
+    case TYPE_CHAR:
+        *(uint8_t *)dst = *(uint8_t *)src;
+        break;
+    case TYPE_SHORT:
+        *(uint16_t *)dst = tswap16(*(uint16_t *)src);
+        break;
+    case TYPE_INT:
+        *(uint32_t *)dst = tswap32(*(uint32_t *)src);
+        break;
+    case TYPE_LONGLONG:
+    case TYPE_ULONGLONG:
+        *(uint64_t *)dst = tswap64(*(uint64_t *)src);
+        break;
+#if HOST_LONG_BITS == 32 && TARGET_LONG_BITS == 32
+    case TYPE_LONG:
+    case TYPE_ULONG:
+    case TYPE_PTRVOID:
+        *(uint32_t *)dst = tswap32(*(uint32_t *)src);
+        break;
+#elif HOST_LONG_BITS == 64 && TARGET_LONG_BITS == 32
+    case TYPE_LONG:
+    case TYPE_ULONG:
+    case TYPE_PTRVOID:
+        if (target_to_host) {
+            *(uint64_t *)dst = tswap32(*(uint32_t *)src);
+        } else {
+            *(uint32_t *)dst = tswap32(*(uint64_t *)src & 0xffffffff);
+        }
+        break;
+#else
+#error unsupported conversion
+#endif
+    case TYPE_ARRAY:
+        {
+            int array_length, i, dst_size, src_size;
+            const uint8_t *s;
+            uint8_t  *d;
+
+            array_length = *type_ptr++;
+            dst_size = thunk_type_size(type_ptr, to_host);
+            src_size = thunk_type_size(type_ptr, 1 - to_host);
+            d = dst;
+            s = src;
+            for(i = 0;i < array_length; i++) {
+                thunk_convert(d, s, type_ptr, to_host);
+                d += dst_size;
+                s += src_size;
+            }
+            type_ptr = thunk_type_next(type_ptr);
+        }
+        break;
+    case TYPE_STRUCT:
+        {
+            int i;
+            const StructEntry *se;
+            const uint8_t *s;
+            uint8_t  *d;
+            const argtype *field_types;
+            const int *dst_offsets, *src_offsets;
+            
+            se = struct_entries + *type_ptr++;
+            if (se->convert[0] != NULL) {
+                /* specific conversion is needed */
+                (*se->convert[to_host])(dst, src);
+            } else {
+                /* standard struct conversion */
+                field_types = se->field_types;
+                dst_offsets = se->field_offsets[to_host];
+                src_offsets = se->field_offsets[1 - to_host];
+                d = dst;
+                s = src;
+                for(i = 0;i < se->nb_fields; i++) {
+                    field_types = thunk_convert(d + dst_offsets[i], 
+                                                s + src_offsets[i], 
+                                                field_types, to_host);
+                }
+            }
+        }
+        break;
+    default:
+        fprintf(stderr, "Invalid type 0x%x\n", type);
+        break;
+    }
+    return type_ptr;
+}
+
+/* from em86 */
+
+/* Utility function: Table-driven functions to translate bitmasks
+ * between X86 and Alpha formats...
+ */
+unsigned int target_to_host_bitmask(unsigned int x86_mask, 
+                                    bitmask_transtbl * trans_tbl)
+{
+    bitmask_transtbl *	btp;
+    unsigned int	alpha_mask = 0;
+
+    for(btp = trans_tbl; btp->x86_mask && btp->alpha_mask; btp++) {
+	if((x86_mask & btp->x86_mask) == btp->x86_bits) {
+	    alpha_mask |= btp->alpha_bits;
+	}
+    }
+    return(alpha_mask);
+}
+
+unsigned int host_to_target_bitmask(unsigned int alpha_mask, 
+                                    bitmask_transtbl * trans_tbl)
+{
+    bitmask_transtbl *	btp;
+    unsigned int	x86_mask = 0;
+
+    for(btp = trans_tbl; btp->x86_mask && btp->alpha_mask; btp++) {
+	if((alpha_mask & btp->alpha_mask) == btp->alpha_bits) {
+	    x86_mask |= btp->x86_mask;
+	}
+    }
+    return(x86_mask);
+}
diff --git a/thunk.h b/thunk.h
new file mode 100644
index 0000000..932bbcf
--- /dev/null
+++ b/thunk.h
@@ -0,0 +1,195 @@
+#ifndef THUNK_H
+#define THUNK_H
+
+#include <inttypes.h>
+#include <byteswap.h>
+
+#undef WORDS_BIGENDIAN
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define WORDS_BIGENDIAN
+#endif
+
+#ifdef WORD_BIGENDIAN
+#define BSWAP_NEEDED
+#endif
+
+/* XXX: auto autoconf */
+#define TARGET_I386
+#define TARGET_LONG_BITS 32
+
+
+#if defined(__alpha__)
+#define HOST_LONG_BITS 64
+#else
+#define HOST_LONG_BITS 32
+#endif
+
+#define TARGET_LONG_SIZE (TARGET_LONG_BITS / 8)
+#define HOST_LONG_SIZE (TARGET_LONG_BITS / 8)
+
+static inline uint16_t bswap16(uint16_t x)
+{
+    return bswap_16(x);
+}
+
+static inline uint32_t bswap32(uint32_t x) 
+{
+    return bswap_32(x);
+}
+
+static inline uint64_t bswap64(uint64_t x) 
+{
+    return bswap_64(x);
+}
+
+static void inline bswap16s(uint16_t *s)
+{
+    *s = bswap16(*s);
+}
+
+static void inline bswap32s(uint32_t *s)
+{
+    *s = bswap32(*s);
+}
+
+static void inline bswap64s(uint64_t *s)
+{
+    *s = bswap64(*s);
+}
+
+#ifdef BSWAP_NEEDED
+
+static inline uint16_t tswap16(uint16_t s)
+{
+    return bswap16(s);
+}
+
+static inline uint32_t tswap32(uint32_t s)
+{
+    return bswap32(s);
+}
+
+static inline uint64_t tswap64(uint64_t s)
+{
+    return bswap64(s);
+}
+
+static void inline tswap16s(uint16_t *s)
+{
+    *s = bswap16(*s);
+}
+
+static void inline tswap32s(uint32_t *s)
+{
+    *s = bswap32(*s);
+}
+
+static void inline tswap64s(uint64_t *s)
+{
+    *s = bswap64(*s);
+}
+
+#else
+
+static inline uint16_t tswap16(uint16_t s)
+{
+    return s;
+}
+
+static inline uint32_t tswap32(uint32_t s)
+{
+    return s;
+}
+
+static inline uint64_t tswap64(uint64_t s)
+{
+    return s;
+}
+
+static void inline tswap16s(uint16_t *s)
+{
+}
+
+static void inline tswap32s(uint32_t *s)
+{
+}
+
+static void inline tswap64s(uint64_t *s)
+{
+}
+
+#endif
+
+#if TARGET_LONG_SIZE == 4
+#define tswapl(s) tswap32(s)
+#define tswapls(s) tswap32s((uint32_t *)(s))
+#else
+#define tswapl(s) tswap64(s)
+#define tswapls(s) tswap64s((uint64_t *)(s))
+#endif
+
+#if TARGET_LONG_SIZE == 4
+typedef int32_t target_long;
+typedef uint32_t target_ulong;
+#elif TARGET_LONG_SIZE == 8
+typedef int64_t target_long;
+typedef uint64_t target_ulong;
+#else
+#error TARGET_LONG_SIZE undefined
+#endif
+
+/* types enums definitions */
+
+typedef enum argtype {
+    TYPE_NULL,
+    TYPE_CHAR,
+    TYPE_SHORT,
+    TYPE_INT,
+    TYPE_LONG,
+    TYPE_ULONG,
+    TYPE_PTRVOID, /* pointer on unknown data */
+    TYPE_LONGLONG,
+    TYPE_ULONGLONG,
+    TYPE_PTR,
+    TYPE_ARRAY,
+    TYPE_STRUCT,
+} argtype;
+
+#define MK_PTR(type) TYPE_PTR, type
+#define MK_ARRAY(type, size) TYPE_ARRAY, size, type
+#define MK_STRUCT(id) TYPE_STRUCT, id
+
+#define THUNK_TARGET 0
+#define THUNK_HOST   1
+
+typedef struct {
+    /* standard struct handling */
+    const argtype *field_types;
+    int nb_fields;
+    int *field_offsets[2];
+    /* special handling */
+    void (*convert[2])(void *dst, const void *src);
+    int size[2];
+    int align[2];
+    const char *name;
+} StructEntry;
+
+/* Translation table for bitmasks... */
+typedef struct bitmask_transtbl {
+	unsigned int	x86_mask;
+	unsigned int	x86_bits;
+	unsigned int	alpha_mask;
+	unsigned int	alpha_bits;
+} bitmask_transtbl;
+
+void thunk_register_struct(int id, const char *name, const argtype *types);
+void thunk_register_struct_direct(int id, const char *name, StructEntry *se1);
+const argtype *thunk_convert(void *dst, const void *src, 
+                             const argtype *type_ptr, int to_host);
+
+unsigned int target_to_host_bitmask(unsigned int x86_mask, 
+                                    bitmask_transtbl * trans_tbl);
+unsigned int host_to_target_bitmask(unsigned int alpha_mask, 
+                                    bitmask_transtbl * trans_tbl);
+
+#endif
