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linux-user: fix socklen_t comparisons
On many systems, socklen_t is defined as unsigned. This means thatchecks for negative values are not meaningful.
Fix by explicitly casting to a signed integer.
This also avoids some warnings with GCC flag -Wtype-limits....
Usermode exec-stack fix
When loading a shared library that requires an executable stack,glibc uses the mprotext PROT_GROWSDOWN flag to achieve this.We don't support PROT_GROWSDOWN.Add a special case to handle changing the stack permissions in this way....
s390x: Avoid _llseek.
There's no _llseek on s390x either. Replace the existingtest for x86_64 with a functional test for __NR_llseek.
Signed-off-by: Richard Henderson <rth@twiddle.net>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
linux-user: do not warn for missing pselect6
Libc will fallback gracefully if pselect6 is not available. Thus putpselect6 to nowarn until the atomicity issues of the original pselect6patch are dealt with.
Signed-off-by: Riku Voipio <riku.voipio@nokia.com>...
alpha-linux-user: Fix getxpid.
Put ppid in the second return register.
alpha-linux-user: Fix sigsuspend parameters.
Alpha passes the signal set in a register, not by reference.
alpha-linux-user: Fix sigprocmask.
Alpha passes oldset by value in a register, and returns the newsetas the return value; as compared to the standard implementation inwhich both are passed by reference. This requires being able todistinguish negative return values that are not errors. Do this in...
alpha-linux-user: Fix brk error return.
alpha-linux-user: Fix pipe return mechanism.
At the same time, tidy the code wrt MIPS and SH4 which have thesame two register return mechanism. Fix confusion between pipeand pipe2 with an explicit flags=0, when the guest will not beusing the two register return mechanism....
linux-user: rlimit conversion between host and target.
rlim_t conversion between host and target added.Otherwise there are some incorrect case like- RLIM_INFINITY on 32bit target > 64bit host. RLIM_INFINITY on 64bit host > mips and sparc target ? Big value(for 32bit target) on 64bit host -> 32bit target....
target-alpha: Enable NPTL.
linux-user: Fix sparc32plus stat64 syscalls.
Check TARGET_ABI_BITS, not TARGET_LONG_BITS, when decidingwhether or not the guest needs special 64-bit stat translation.
Signed-off-by: Richard Henderson <rth@twiddle.net>Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
linux-user: do_shmdt(): Fix page_set_flags's 2nd arg.
2nd arg of page_set_flags() should be start+size, but size.
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>Acked-by: Richard Henderson <rth@twiddle.net>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Fix compilation with missing inotify_init1
Commit c05c7a7306a23a4b01d1606172b142c45caffc92breaks cross compilation for mips (and othercompilations without CONFIG_INOTIFY1):
make1: Entering directory `/qemu/bin/mips' CC i386-linux-user/syscall.o...
linux-user/ia64: workaround ia64 strangenesses
ia64 has some strangenesses that need to be workaround:- it has a __clone2() syscall instead of the using clone() one, with different arguments, and which is not declared in the usual headers.- ucontext.uc_sigmask is declared with type long int, while it is...
linux-user: add inotify_init1 syscall support
New syscall which gets actively used when you have afresh kernel.
Signed-off-by: Riku Voipio <riku.voipio@nokia.com>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
linux-user: Fix syscall pipe2() retval on sh4
On linux/sh4 pipe() return values by r0:r1 as SH C calling convention. pipe2() return values on memory as traditional unix way.
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
alpha-linux-user: Implement signals.
Move userland PALcode handling into linux-user main loop so thatwe can send signals from there. This also makes alpha_palcode.csystem-level only, so don't build it for userland. Add definesfor GENTRAP PALcall mapping to signals....
linux-user: adapt uname machine to emulated CPU
This patch for linux-user adapts the output of the emulated uname()syscall to match the configured CPU. Tested with x86, x86-64 and armemulation.
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>Signed-off-by: Loïc Minier <lool@dooz.org>
alpha: fix stat64 issue
The stat64/fstat64 syscalls are broken for alpha linux-user.
This is because Alpha, even though it is native 64-bits, has a stat64syscall that is different than regular stat. This means that the"TARGET_LONG_BITS==64" check in syscall.c isn't enough. Below is...
target-alpha: Fixes for alpha-linux syscalls.
1. Add correct definitions of error numbers.2. Implement SYS_osf_sigprocmask3. Implement SYS_osf_get/setsysinfo for IEEE_FP_CONTROL.
This last requires exposing the FPCR value to do_syscall.Since this value is actually split up into the float_status,...
(x86/Sparc/PPC)-user: fix cpu_copy
b55a37c981914aa8ecd21b9a2a2fb37f39b917c5 moved the call to cpu_resetto user emulators. But cpu_copy also initializes a CPU structure, so add thecall also there.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Re: linux-user/syscall.c - don't add GUEST_BASE to NULL pointer
This patch fixes the mount call. GUEST_BASE shouldn't be added to a NULL pointer on arg5 . failing call:mount("rootfs", "/", 0x47a78, MS_MGC_VAL|MS_REMOUNT, 0x10000) = -1 EFAULT (Bad address)...
linux-user: KD/VT/FB ioctls
everything needed to run SDL on a framebuffer device in the userspace emulator
Signed-off-by: Ulrich Hecht <uli@suse.de>Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
implementations of dup3 and fallocate that are good enough to fool LTP
updated fallocate check to new configure, added dup3 check as suggestedby Jan-Simon Möller.
Riku: updated to apply to current git.
linux-user: getpriority errno fix
getpriority returned wrong errno; fixes LTP test getpriority02.
Revert "Get rid of _t suffix"
In the very least, a change like this requires discussion on the list.
The naming convention is goofy and it causes a massive merge problem. Somethinglike this must be presented on the list first so people can provide input...
Get rid of _t suffix
Some not so obvious bits, slirp and Xen were left alone for the timebeing.
Signed-off-by: malc <av1474@comtv.ru>
linux-user: fix coding style nit
Put space between = and & when taking a pointer,to avoid confusion with old-style "&=".
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
F_DUPFD_CLOEXEC is not universally available
The same issue (and the same patch to the byte) was experienced/proposedby Vince Weaver.
linux-user: fadvise64 implementation
good enough to pass all LTP fadvise64 tests
linux-user: zero fstat buffer to initialize nsec fields
The fstat implementation does not initialize the nanosecond fields in thestat buffer; this caused funny values to turn up there, preventing, forinstance, cp -p from preserving timestamps because utimensat rejected...
m68k, linux-user: enable sigaltstack()
As setup_frame() and setup_rt_frame() are now implemented we can nowenable sigaltstack().
Signed-off-by: Laurent Vivier <laurent@vivier.eu>Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
linux-user: fix mq_* compilation problems
mqueue.h is only available if _NR_mq_open is defined. So don't includeit unconditionally. Similarly, the mq* family of syscalls depend on_NR_mq_open. Finally, the copy{from,to}_user_mq_attr functions should...
linux-user: fcntl fixes for LTP
Fixes swaps on l_pid which were pretty much of random size. ImplementsF_SETLEASE, F_GETLEASE. Now passes all LTP fcntl tests.
linux-user: enable getdents for > 32-bit systems
works perfectly fine with the example from getdents(2) and passes the LTPtests (tested with s390x on x86_64 emulation)
linux-user: add eventfd support
Straightforward implementation. This syscall is rare enough that wedon't need to support the odder cases, just disable it if host glibcis too old.
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
linux-user: make FUTEX_* calls honor timeout parameter
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>Signed-off-by: malc <av1474@comtv.ru>
rename USE_NPTL to CONFIG_USE_NPTL
Signed-off-by: Juan Quintela <quintela@redhat.com>Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
rename HAVE_GPROF to TARGET_GPROF
Use was not consistent, in Makefile was TARGET_GPROF and in *h HAVE_GPROF
Fix most warnings (errors with -Werror) when debugging is enabled
I used the following command to enable debugging:perl -p -i -e 's/^\/\/#define DEBUG/#define DEBUG/g' * /* *//*
Update to a hopefully more future proof FSF address
wrap path for access syscall
getrlimit conversion mix-up
Fixes getrlimit implementation that overwrote the result of the syscallinstead of converting it
pipe argument should not be signed
pipedes is an address, it should not be signed (breaks for addresses
0x80000000)
64-bit clean socketcall syscall
makes socketcall 64-bit clean so it works on 64-bit big-endian systems
linux-user: check some parameters for some socket syscalls.
This patch is fixing following issues :
- commit 8fea36025b9d6d360ff3b78f88a84ccf221807e8 was applied to do_getsockname instead of do_accept.- Some syscalls were not checking properly the memory addresses passed...
linux-user/syscall.c: remove warning: ‘array’ may be used uninitialized in this function
Removes the following warning
CC i386-linux-user/syscall.occ1: warnings being treated as errors/media/nfs/qemu/linux-user/syscall.c: In function ‘do_syscall’:/media/nfs/qemu/linux-user/syscall.c:2219: warning: ‘array’ may be used uninitialized in this function...
linux-user: strace now handles guest stringscorrectly [v2]
On Tue, Jun 16, 2009 at 08:19:23PM -0500, Anthony Liguori wrote:
malc wrote: On my system the above line causes gcc to emit: In file included from /home/malc/x/rcs/git/qemu/linux-user/strace.c:12:...
malc wrote:
On my system the above line causes gcc to emit: In file included from /home/malc/x/rcs/git/qemu/linux-user/strace.c:12:...
On my system the above line causes gcc to emit:
In file included from /home/malc/x/rcs/git/qemu/linux-user/strace.c:12:...
RFC: fix fcntl support in linux-user - new try
Hi,
This is a new try to fix the fcntl support in linux-user. I tried toadress all comments but as the previous version is several weeks old,it's possible that I've missed some.
This patch doesn't handle linux specific fcntl flags. My plan is to get...
linux-user/syscall.c: define _ATFILE_SOURCE
Needed to make sure the xxxat() functions are available.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
linux-user: remove duplicate tswap32() from do_getsockopt()
This issue has been detected with tests/linux-tests.c:
linux-test.c:330: getsockopt
327 len = sizeof(val);328 chk_error(getsockopt(server_fd, SOL_SOCKET, SO_TYPE, &val, &len));329 if (val != SOCK_STREAM)...
linux-user: add tee, splice and vmsplice
Add support for tee, splice and vmsplice.
Originally from: vibi sreenivasan <vibi_sreenivasan@cms.com>
Riku: squashed patches together, added a test to configureand removed compliler warning by picking up correct type for...
linux-user: Added IP_ADD_MEMBERSHIP/IP_DROP_MEMBERSHIP flags to setsockopt
Signed-off-by: Lionel Landwerlin <lionel.landwerlin@openwide.fr>Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
linux-user: Added IP_(UN)BLOCK_SOURCE/IP_(ADD|DROP)_SOURCE_MEMBERSHIP flags to setsockopt
linux-user: include linux/fs.h
defines FIGETBSZ FIBMAP, allowing the respective ioctl's tobe implemented.
From: Martin Mohring <martin.mohring@opensuse.org>Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
linux-user: support private futexes
Implemented the same way as in the kernel.
add futex wake op
linux-user: implement pipe2 [v3]
implement pipe2 syscall.
[v2] fix do_pipe on mips and sh4[v3] use pipe2 to ensure atomicity, but only when it is available.
Implement shm* syscalls and fix 64/32bit errors
No regressions were observed on either 64bit or 32bitIA hosts.
Patch based on original patches by: Kirill A. Shutemov <kirill@shutemov.name> - Implement shm* syscalls - Fix and cleanup IPCOP_shm* ipc calls handling...
linux-user: implemented ELF coredump support for ARM target
When target process is killed with signal (such signal thatshould dump core) a coredump file is created. This file issimilar than coredump generated by Linux (there are few exceptionsthough)....
linux-user: strace now handles guest strings correctly [v2]
- to not to break strace with GUEST_BASE is set:- Strace now can load and print guest strings correctly.- Added printing support for commonly used flags in some syscalls (e.g open, creat, mmap etc.)...
linux-user: fix utimensat
The glibc function for utimensat glibc returns -EINVAL when the path is nullwhich is a different behaviour with the syscall.
path can be null because internally the glibc is using utimensat withpath null when implmenting futimens. If path is null, call futimes...
Fix struct termios host - target translation
When converting the termios structure between host and target intarget_to_host_termios and host_to_target_termios, the c_cc[] array isnever initialised.Calling memset() before using it allows to run successfully "stty echo /...
Return EOPNOTSUPP instead of ENOSYS for xattr syscalls
In current code, we're sending ENOSYS to target when a syscall for thexattrs is done. This makes applications like ls complain loudly aboutthat and breaks scripts parsing the output. Moreover, iirc, implemented...
fix gdbstub support for multiple threads in usermode, v3
When debugging multi-threaded programs, QEMU's gdb stub would report thecorrect number of threads (the qfThreadInfo and qsThreadInfo packets).However, the stub was unable to actually switch between threads (the T...
microblaze: linux-user support.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Only define __llseek if it is going to be used
Signed-off-by: Paul Brook <paul@codesourcery.com>
Replace gcc variadic macro extension with C99 version
linux-user: Linux kernel's fchmodat and faccessat have three args (no 4th arg)
In Linux kernel, fchmodat() and faccessat() take tree args.4th value <int flags> is only processed by libc.
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>...
linux-user: fix IPCOP_sem* and implement sem*
Fix and cleanup IPCOP_sem* ipc calls handling andimplement sem* syscalls.
Riku:
1) Uglify whitespace so that diff gets smaller and easierto review
2) use __get_user in target_to_host_sembuf
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>...
linux-user: fix inotify syscalls
Configure test was broken, so the breakage of the #ifdef'dcode was not noticed.
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7134 c046a42c-6fe2-441c-8c8c-71466251a162
Translate signal values in exit status.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7131 c046a42c-6fe2-441c-8c8c-71466251a162
linux-user: fix getcwd syscall
The patch called "prefer glibc over direct syscalls" (commit 7118) hasreplaced the getcwd syscall with a call to the glibc. With this change,the syscall is returning -1 in error case and 0 otherwise.This is problematic as the sys_getcwd syscall should return the number...
linux-user: fix warnings introduced by r7118
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7120 c046a42c-6fe2-441c-8c8c-71466251a162
linux-user: prefer glibc over direct syscalls
The openat/*at syscalls are incredibly common with modern coreutils,calling them directly via syscalls breaks for example fakeroot. Useglibc stubs whenever directly available and provide old syscallcalling for people still using older libc....
linux-user: removed unnecessary MAX_SOCK_ADDR checks for socket syscalls
- This check is not needed because kernel will check whether given buffer is too small and there is no upper limit for size of the buffer.
From: Mika Westerberg <mika.westerberg@iki.fi>...
linux-user: unix sockets - fix running dbus
dbus sends too short (according to man 7 unix) addrlen for it'sunix socket. I've been told that happens with other applicationsas well. Linux kernel doesn't appear to mind, so I guesswe whould be tolerant as well. Expand sockaddr with +1 to fit...
linux-user: Added posix message queue syscalls except mq_notify
Signed-off-by: Lionel Landwerlin <lionel.landwerlin@openwide.fr>Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>Signed-off-by: Riku Voipio <riku.voipio@iki.fi>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>...
linux-user: fix fstatat64()/newfstatat() syscall implementation
There are two different syscall names for the same goal.
On systems with sizeof(long) 64 it calls newfstatat.On systems with sizeof(long) 32 it calls fstatat64.
linux-user: fix problems with inotify syscalls
The sys_inotify* calls are defined if the target supports them and thehost supports the necessary syscalls. But the syscalls are handled ifthe target supports them. This situation leads to compilation failures...
The _exit syscall is used for both thread termination in NPTL applications,and process termination in legacy applications. Try to guess which we wantbased on the presence of multiple threads.
Also implement locking when modifying the CPU list.
Signed-off-by: Paul Brook <paul@codesourcery.com>...
linux-user: Remove incorrect break;
Reported-By: Laurent Desnogues <laurent.desnogues@gmail.com>Signed-off-by: Riku Voipio <riku.voipio@iki.fi>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6503 c046a42c-6fe2-441c-8c8c-71466251a162
linux-user: identify running binary in /proc/self/exe
Some applications like to test /proc/self/exe to findout who they are. Fake the result of readlink() forthem. Use realpath() to return full path to binary(which the links /proc/self/exe are)
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>...
linuw-user fix: read() and acct() on NULL arguments
Returning efault in these cases is not correct. Originallyproposed by Thayne Harbaugh in 2007:http://www.mail-archive.com/qemu-devel@nongnu.org/msg14658.html
linux-user: return EINVAL on incorrect sockaddr
From: Lauro Ramos Venancio <lauro.venancio@gmail.com>
Fixes ltp test accept01
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6479 c046a42c-6fe2-441c-8c8c-71466251a162
linux-user: fix accept(2) with NULL peer
Based on scratchbox2 patch by Mika Westerberg
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6478 c046a42c-6fe2-441c-8c8c-71466251a162
CRIS: Clone flags are reversed on CRIS.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6222 c046a42c-6fe2-441c-8c8c-71466251a162
CRIS: Implement set_thread_area for CRIS.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6210 c046a42c-6fe2-441c-8c8c-71466251a162
Fix more FSF addresses
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6192 c046a42c-6fe2-441c-8c8c-71466251a162
User-mode GDB stub improvements - handle fork
Close gdbserver in child processes, so that only one stub tries to talkto GDB at a time. Updated from an earlier patch by Paul Brook.
Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>...
Fix warning about unused shm_regions
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6001 c046a42c-6fe2-441c-8c8c-71466251a162
target-alpha: implement getxuid and getxgid syscalls
This patch implemented the setxuid and setxgid syscalls for Alpha.These syscalls return two values, both uid/euid and gid/egid.In addition to returning the first value in $v0, the additionalvalue is returned in the $a4 register....
use target_mmap() to allocate idt, gdt and ldt (Kirill A. Shutemov).
env->*dt.base should fit target address space, so we should usetarget_mmap to allocate them.
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5666 c046a42c-6fe2-441c-8c8c-71466251a162
User qemu profiling
- Makefile.target: re-enable profiling for user qemu. It seems profiling was (accidently?) removed by commit 3937
- syscall.c: * add an include to get _mcleanup prototype * add a call to _mcleanup for exit_group in a way similar to what is done for exit...
Recvmsg must return the number of bytes received (Lauro Ramos Venancio).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5564 c046a42c-6fe2-441c-8c8c-71466251a162
Fix iovec for the case with invalid elements (Lauro Ramos Venancio).
We must call the writev even if an iovec element is invalid. Forexample, if the second element is invalid, the linux process the firstone.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5562 c046a42c-6fe2-441c-8c8c-71466251a162
Use the host exit syscall for exiting (Lauro Ramos Venancio).
We can't call the libc _exit function because it calls the exit_grouphost syscall. We must call directly the exit host syscall.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5561 c046a42c-6fe2-441c-8c8c-71466251a162
Fix undeclared symbol warnings from sparse
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5539 c046a42c-6fe2-441c-8c8c-71466251a162
Replace uses of strncpy (a GNU extension) with Qemu pstrcpy
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5531 c046a42c-6fe2-441c-8c8c-71466251a162