Revision cb33da57 linux-user/elfload.c
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#include "qemu.h" |
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#include "disas.h" |
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/* from personality.h */ |
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/* |
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* Flags for bug emulation. |
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* |
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* These occupy the top three bytes. |
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*/ |
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enum {
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ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA space */ |
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FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to descriptors |
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* (signal handling) |
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*/ |
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MMAP_PAGE_ZERO = 0x0100000, |
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ADDR_COMPAT_LAYOUT = 0x0200000, |
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READ_IMPLIES_EXEC = 0x0400000, |
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ADDR_LIMIT_32BIT = 0x0800000, |
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SHORT_INODE = 0x1000000, |
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WHOLE_SECONDS = 0x2000000, |
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STICKY_TIMEOUTS = 0x4000000, |
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ADDR_LIMIT_3GB = 0x8000000, |
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}; |
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/* |
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* Personality types. |
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* |
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* These go in the low byte. Avoid using the top bit, it will |
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* conflict with error returns. |
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*/ |
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enum {
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PER_LINUX = 0x0000, |
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PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT, |
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PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS, |
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PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, |
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PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE, |
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PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | |
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WHOLE_SECONDS | SHORT_INODE, |
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PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS, |
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PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE, |
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PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS, |
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PER_BSD = 0x0006, |
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PER_SUNOS = 0x0006 | STICKY_TIMEOUTS, |
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PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE, |
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PER_LINUX32 = 0x0008, |
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PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB, |
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PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */ |
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PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */ |
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PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */ |
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PER_RISCOS = 0x000c, |
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PER_SOLARIS = 0x000d | STICKY_TIMEOUTS, |
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PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO, |
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PER_OSF4 = 0x000f, /* OSF/1 v4 */ |
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PER_HPUX = 0x0010, |
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PER_MASK = 0x00ff, |
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}; |
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/* |
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* Return the base personality without flags. |
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*/ |
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#define personality(pers) (pers & PER_MASK) |
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/* this flag is uneffective under linux too, should be deleted */ |
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#ifndef MAP_DENYWRITE |
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#define MAP_DENYWRITE 0 |
| ... | ... | |
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#define ELF_START_MMAP 0x80000000 |
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#define elf_check_arch(x) ( (x) == EM_SPARCV9 ) |
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#define elf_check_arch(x) ( (x) == EM_SPARCV9 || (x) == EM_SPARC32PLUS )
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#define ELF_CLASS ELFCLASS64 |
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#define ELF_DATA ELFDATA2MSB |
| ... | ... | |
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regs->pc = infop->entry; |
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regs->npc = regs->pc + 4; |
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regs->y = 0; |
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regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS; |
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if (personality(infop->personality) == PER_LINUX32) |
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regs->u_regs[14] = infop->start_stack - 16 * 4; |
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else |
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regs->u_regs[14] = infop->start_stack - 16 * 8 - STACK_BIAS; |
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} |
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#else |
| ... | ... | |
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#define ELF_HWCAP 0 |
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#endif |
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#ifdef OVERRIDE_ELF_CLASS |
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#undef ELF_CLASS |
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#define ELF_CLASS OVERRIDE_ELF_CLASS |
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#undef bswaptls |
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#define bswaptls(ptr) bswap32s(ptr) |
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#endif |
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#include "elf.h" |
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struct exec |
| ... | ... | |
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/* max code+data+bss+brk space allocated to ET_DYN executables */ |
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#define ET_DYN_MAP_SIZE (128 * 1024 * 1024) |
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/* from personality.h */ |
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/* Flags for bug emulation. These occupy the top three bytes. */ |
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#define STICKY_TIMEOUTS 0x4000000 |
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#define WHOLE_SECONDS 0x2000000 |
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/* Personality types. These go in the low byte. Avoid using the top bit, |
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* it will conflict with error returns. |
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*/ |
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#define PER_MASK (0x00ff) |
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#define PER_LINUX (0x0000) |
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#define PER_SVR4 (0x0001 | STICKY_TIMEOUTS) |
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#define PER_SVR3 (0x0002 | STICKY_TIMEOUTS) |
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#define PER_SCOSVR3 (0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS) |
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#define PER_WYSEV386 (0x0004 | STICKY_TIMEOUTS) |
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#define PER_ISCR4 (0x0005 | STICKY_TIMEOUTS) |
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#define PER_BSD (0x0006) |
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#define PER_XENIX (0x0007 | STICKY_TIMEOUTS) |
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/* Necessary parameters */ |
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#define TARGET_ELF_EXEC_PAGESIZE TARGET_PAGE_SIZE |
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#define TARGET_ELF_PAGESTART(_v) ((_v) & ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1)) |
| ... | ... | |
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return p; |
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} |
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target_ulong setup_arg_pages(target_ulong p, struct linux_binprm * bprm,
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struct image_info * info)
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static target_ulong setup_arg_pages(target_ulong p, struct linux_binprm *bprm,
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struct image_info *info)
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{
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target_ulong stack_base, size, error; |
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int i; |
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