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path: root/linux-user/signal.c
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2010-05-09sparc: Fix lazy flag calculation on interrupts, refactorBlue Swirl
Recalculate Sparc64 CPU flags on interrupts, otherwise some earlier flags could be stored to pstate. Refactor PSR/CCR/CWP handling: concentrate the actual functions to op_helper.c. Thanks to Igor Kovalenko for reporting. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-04-01linux-user/ia64: workaround ia64 strangenessesAurelien Jarno
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 actually of type sigset_t. - uc_mcontext, uc_sigmask, uc_stack, uc_link are declared using #define, which clashes with the target_ucontext fields. Change their names to tuc_*, as already done for some target architectures.
2010-03-18Replace assert(0) with abort() or cpu_abort()Blue Swirl
When building with -DNDEBUG, assert(0) will not stop execution so it must not be used for abnormal termination. Use cpu_abort() when in CPU context, abort() otherwise. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-13Fix build with -DNDEBUG in CFLAGSBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-06linux-user: Save/restore fpu registers to signal context on sh4takasi-y@ops.dti.ne.jp
As "todo" comment in source code. And modify restore_sigcontext() to have three args as kernel's does. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-02-28alpha-linux-user: Implement signals.Richard Henderson
Move userland PALcode handling into linux-user main loop so that we can send signals from there. This also makes alpha_palcode.c system-level only, so don't build it for userland. Add defines for GENTRAP PALcall mapping to signals. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-19linux-user: cleanup force_sig() callsRiku Voipio
Force_sig should be always called with TARGET_ signals. Not that it really matters with SEGV, so this patch is just for cleanup and improving consistency. Signed-off-by: Riku Voipio <riku.voipio@nokia.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-24linux-user: remove hardcoded value of _NSIG in signal.cArnaud Patard
In a bunch of places, 64 is used as value of _NSIG but it's wrong at least on MIPS were _NSIG is 128. Based on a patch from Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-10-01Revert "Get rid of _t suffix"Anthony Liguori
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. Something like this _must_ be presented on the list first so people can provide input and cope with it. This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01Get rid of _t suffixmalc
Some not so obvious bits, slirp and Xen were left alone for the time being. Signed-off-by: malc <av1474@comtv.ru>
2009-08-25m68k, linux-user: add setup_rt_frameLaurent Vivier
This patch implements setup_rt_frame(). Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2009-08-25m68k,linux-user: add setup_frameLaurent Vivier
This patch adds signals management for linux-user. It implements setup_frame() which allows to call the user signal handler. setup_rt_frame() is always unimplemented. Signed-off-by: Laurent Vivier <laurent@vivier.eu> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2009-07-20Fix most warnings (errors with -Werror) when debugging is enabledBlue Swirl
I used the following command to enable debugging: perl -p -i -e 's/^\/\/#define DEBUG/#define DEBUG/g' * */* */*/* Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-18Avoid name clashes with symbols that leak from system headersmalc
Signed-off-by: malc <av1474@comtv.ru>
2009-07-16Update to a hopefully more future proof FSF addressBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-09MIPS signal handling fixPaul Brook
Add explicit padding to MIPS signal frame structures. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-06-16linux-user: implemented ELF coredump support for ARM targetMika Westerberg
When target process is killed with signal (such signal that should dump core) a coredump file is created. This file is similar than coredump generated by Linux (there are few exceptions though). Riku Voipio: added support for rlimit Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
2009-05-26microblaze: linux-user support.Edgar E. Iglesias
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-16linux-user: ppc signal handlingNathan Froyd
Implement setup_{,rt_}frame and do_{,rt_}sigreturn for PPC 32-bit. Use the same TARGET_QEMU_ESIGRETURN hack as for MIPS to avoid clobbering register state on a sigreturn. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: malc <av1474@comtv.ru>
2009-04-21MIPS signal handling fixes.pbrook
Also fixes a register corruption bug in do_sigreturn. When "returning" from sigreturn we are actually restoring the virtual cpu state from the signal frame. This is actually surprisingly hard to observe in practice. Typically an thread be blocked in a FUTEX_WAIT call when the signal arrives, so the effect is a spurious syscall success and the introduction of a subtle race condition. On x86/arm a syscall modifies a single word sized register, so do_sigreturn can just return that value. On MIPS a syscall clobbers multiple registers, so we need additional smarts. My solution is to invent a magic errno value that means "don't touch CPU state". git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7194 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-16Translate signal values in exit status.pbrook
Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7131 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-15linux-user: proper exit code for uncaught signalsaurel32
The proper exit code for dieing from an uncaught signal is -<signal>. The kernel doesn't allow exit() or _exit() to pass a negative value. To get the proper exit code we need to actually die from an uncaught signal. A default signal handler is installed, we send ourself a signal and we wait for it to arrive. Patch originates from Scratchbox 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@7119 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07Use a dedicated function to request exit from execution loopaurel32
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6762 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07The _exit syscall is used for both thread termination in NPTL applications,pbrook
and process termination in legacy applications. Try to guess which we want based on the presence of multiple threads. Also implement locking when modifying the CPU list. Signed-off-by: Paul Brook <paul@codesourcery.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6735 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-01Replace noreturn with QEMU_NORETURNmalc
Thanks to Robert Riebisch for analysis [1] [1] http://marc.info/?l=qemu-devel&m=123352293319271&w=2 git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6492 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-30linux-user: fix signal.c warningaurel32
This patch fixes: linux-user/signal.c:1403: warning: no previous prototype for 'do_sigreturn_v1' linux-user/signal.c:1473: warning: no previous prototype for 'do_sigreturn_v2' linux-user/signal.c:1511: warning: no previous prototype for 'do_rt_sigreturn_v1' linux-user/signal.c:1552: warning: no previous prototype for 'do_rt_sigreturn_v2' by making the appropriate functions static. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6486 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14Add noreturn function attributeblueswir1
Introduce noreturn attribute and attach it to cpu_loop_exit as well as interrupt/exception helpers for i386. This avoids a bunch of gcc4 warnings. [ Note that this patch comes with a workaround to include qemu-common.h even in cases where is currently causes conflicts with dyngen-exec.h. I've been told that these conflicts will get resolved in the future (/me will try to have a look as well - as time permits). ] Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6303 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-05Fix more FSF addressesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6192 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-03Fix qemu endless loop when raising a SIGSEGV/SIGBUS signal with gdbstub in ↵aurel32
user emulation When a SIGSEGV signal is raised in user mode emulation the current test to know whether the signal is sent by the kernel is wrong : info->si_code == SI_KERNEL according to /usr/include/bits/siginfo.h it should be info->si_code > 0 Signed-off-by: Lionel Landwerlin <lionel.landwerlin@openwide.fr> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6151 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-18User-mode GDB stub improvements - handle signalsaurel32
Handle signals in the user-mode GDB stub. Report them to GDB, and allow it to change or cancel them. Also correct the protocol numbering; it happens to match Linux numbering for SIGINT and SIGTRAP, but that's just good fortune. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6096 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-27linux-user: Add support for STOP/CONT signals.ths
Signed-off-by: Riku Voipio <riku.voipio@iki.fi> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5802 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-27linux-user: sig is target signal.ths
Signed-off-by: Riku Voipio <riku.voipio@iki.fi> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5801 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-08CRIS: linux-user signals dont need ERP compensation after break anymore.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5450 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-05Make target_sigaltstack_used staticblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5428 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-16Move offsetof to osdep.h, remove local defintions.balrog
With this container_of can actually be used without causing build errors. Reformat container_of. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5234 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-17Fix some warnings that would be generated by gcc -Wmissing-prototypesblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5022 c046a42c-6fe2-441c-8c8c-71466251a162
2008-07-16Fix a bunch of type mismatch-related warnings (Jan Kiszka).balrog
Fix a typo in my previous comming (spotted by Laurent Desnouges). git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4877 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-27More efficient target register / TC accesses.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4794 c046a42c-6fe2-441c-8c8c-71466251a162
2008-06-07Multithreaded locking fixes.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4692 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-31Make signal queues per thread.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4635 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-31Fix usermode build.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4634 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-30Copy siginfo.si_code.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4632 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-30Translate whole of target_sigset. Use host sigset accessors.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4631 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-30Perform target->host signal mapping for *kill syscalls.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4625 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-07Update ARM non-rt sigframe layout.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4385 c046a42c-6fe2-441c-8c8c-71466251a162
2008-05-06Update ARM rt_frame layout.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4365 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-21Fix Thumb signal handlers.pbrook
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4089 c046a42c-6fe2-441c-8c8c-71466251a162
2008-03-03CRIS signals:edgar_igl
* Save $mof across signals. * Cleaned up frame accesses. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4012 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-28First try at supporting ordinary signals for CRIS linux-user guests.edgar_igl
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3999 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-12Make MIPS MT implementation more cache friendly.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3981 c046a42c-6fe2-441c-8c8c-71466251a162
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