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# Date Author Comment
3ca05588 11/24/2009 08:51 pm Arnaud Patard

linux-user: remove hardcoded value of _NSIG in signal.c

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 <>

Signed-off-by: Aurelien Jarno <>
c227f099 10/02/2009 12:12 am Anthony Liguori

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. Something
like this must be presented on the list first so people can provide input...
99a0949b 10/01/2009 09:45 pm malc

Get rid of _t suffix

Some not so obvious bits, slirp and Xen were left alone for the time
being.

Signed-off-by: malc <>
7181155d 08/25/2009 05:15 pm Laurent Vivier

m68k, linux-user: add setup_rt_frame

This patch implements setup_rt_frame().

Signed-off-by: Laurent Vivier <>
Signed-off-by: Riku Voipio <>
492a8744 08/25/2009 05:15 pm Laurent Vivier

m68k,linux-user: add setup_frame

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 <>
Signed-off-by: Riku Voipio <>
0bf9e31a 07/20/2009 08:19 pm Blue Swirl

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' * /* *//*

Signed-off-by: Blue Swirl <>
3efa9a67 07/18/2009 12:16 pm malc

Avoid name clashes with symbols that leak from system headers

Signed-off-by: malc <>
8167ee88 07/16/2009 11:47 pm Blue Swirl

Update to a hopefully more future proof FSF address

Signed-off-by: Blue Swirl <>
94c5495d 07/09/2009 08:40 pm Paul Brook

MIPS signal handling fix

Add explicit padding to MIPS signal frame structures.

Signed-off-by: Paul Brook <>
edf8e2af 06/16/2009 04:56 pm Mika Westerberg

linux-user: implemented ELF coredump support for ARM target

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)....
b779e29e 05/26/2009 10:10 pm Edgar E. Iglesias

microblaze: linux-user support.

Signed-off-by: Edgar E. Iglesias <>
bcd4933a 05/16/2009 12:36 am Nathan Froyd

linux-user: ppc signal handling

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 <>...
0b1bcb00 04/21/2009 04:41 am pbrook

MIPS signal handling fixes.

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,...
1d9d8b55 04/16/2009 06:17 pm pbrook

Translate signal values in exit status.

Signed-off-by: Paul Brook <>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7131 c046a42c-6fe2-441c-8c8c-71466251a162
603e4fd7 04/15/2009 07:18 pm aurel32

linux-user: proper exit code for uncaught signals

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....
3098dba0 03/07/2009 11:28 pm aurel32

Use a dedicated function to request exit from execution loop

Signed-off-by: Aurelien Jarno <>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6762 c046a42c-6fe2-441c-8c8c-71466251a162
c2764719 03/07/2009 05:24 pm pbrook

The _exit syscall is used for both thread termination in NPTL applications,
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 <>...
a5e50b26 02/02/2009 12:19 am malc

Replace noreturn with QEMU_NORETURN

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
dc7eea67 01/30/2009 10:15 pm aurel32

linux-user: fix signal.c warning

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'...
7d99a001 01/14/2009 09:00 pm blueswir1

Add noreturn function attribute

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....
530e7615 01/05/2009 08:11 pm blueswir1

Fix more FSF addresses

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6192 c046a42c-6fe2-441c-8c8c-71466251a162
eaa449b9 01/03/2009 03:14 pm aurel32

Fix qemu endless loop when raising a SIGSEGV/SIGBUS signal with gdbstub in 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...
ca587a8e 12/19/2008 12:44 am aurel32

User-mode GDB stub improvements - handle signals

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...
60b19691 11/27/2008 05:47 pm ths

linux-user: Add support for STOP/CONT signals.

Signed-off-by: Riku Voipio <>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5802 c046a42c-6fe2-441c-8c8c-71466251a162
2a913eb1 11/27/2008 05:46 pm ths

linux-user: sig is target signal.

Signed-off-by: Riku Voipio <>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5801 c046a42c-6fe2-441c-8c8c-71466251a162
235262cf 10/08/2008 05:39 pm edgar_igl

CRIS: linux-user signals dont need ERP compensation after break anymore.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5450 c046a42c-6fe2-441c-8c8c-71466251a162
249c4c32 10/05/2008 02:09 pm blueswir1

Make target_sigaltstack_used static

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5428 c046a42c-6fe2-441c-8c8c-71466251a162
ac509d88 09/16/2008 04:36 pm balrog

Move offsetof to osdep.h, remove local defintions.

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
8fcd3692 08/17/2008 11:26 pm blueswir1

Fix some warnings that would be generated by gcc -Wmissing-prototypes

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5022 c046a42c-6fe2-441c-8c8c-71466251a162
526ccb7a 07/16/2008 03:13 pm balrog

Fix a bunch of type mismatch-related warnings (Jan Kiszka).

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
b5dc7732 06/27/2008 01:02 pm ths

More efficient target register / TC accesses.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4794 c046a42c-6fe2-441c-8c8c-71466251a162
d5975363 06/07/2008 11:50 pm pbrook

Multithreaded locking fixes.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4692 c046a42c-6fe2-441c-8c8c-71466251a162
624f7979 05/31/2008 07:11 pm pbrook

Make signal queues per thread.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4635 c046a42c-6fe2-441c-8c8c-71466251a162
afd7cd92 05/31/2008 03:14 pm pbrook

Fix usermode build.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4634 c046a42c-6fe2-441c-8c8c-71466251a162
c4d91807 05/31/2008 01:57 am pbrook

Copy siginfo.si_code.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4632 c046a42c-6fe2-441c-8c8c-71466251a162
f5545b5c 05/31/2008 01:37 am pbrook

Translate whole of target_sigset. Use host sigset accessors.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4631 c046a42c-6fe2-441c-8c8c-71466251a162
4cb05961 05/30/2008 09:05 pm pbrook

Perform target->host signal mapping for *kill syscalls.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4625 c046a42c-6fe2-441c-8c8c-71466251a162
a8c33204 05/08/2008 02:22 am pbrook

Update ARM non-rt sigframe layout.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4385 c046a42c-6fe2-441c-8c8c-71466251a162
a745ec6d 05/06/2008 06:36 pm pbrook

Update ARM rt_frame layout.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4365 c046a42c-6fe2-441c-8c8c-71466251a162
75b680e5 03/21/2008 06:07 pm pbrook

Fix Thumb signal handlers.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4089 c046a42c-6fe2-441c-8c8c-71466251a162
9664d928 03/04/2008 12:23 am edgar_igl CRIS signals:
  • Save $mof across signals.
  • Cleaned up frame accesses.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4012 c046a42c-6fe2-441c-8c8c-71466251a162
b6d3abda 02/28/2008 01:29 pm edgar_igl

First try at supporting ordinary signals for CRIS linux-user guests.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3999 c046a42c-6fe2-441c-8c8c-71466251a162
d0dc7dc3 02/12/2008 11:01 pm ths

Make MIPS MT implementation more cache friendly.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3981 c046a42c-6fe2-441c-8c8c-71466251a162
c3b5bc8a 12/02/2007 08:31 am ths

SH4: Signal handling for the user space emulator, by Magnus Damm.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3764 c046a42c-6fe2-441c-8c8c-71466251a162
f8b0aa25 11/12/2007 01:03 am bellard

fixed more invalid pointer usage

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3624 c046a42c-6fe2-441c-8c8c-71466251a162
28be6234 11/12/2007 12:23 am bellard

user access fixes

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3623 c046a42c-6fe2-441c-8c8c-71466251a162
459a4017 11/11/2007 09:45 pm bellard

removed warnings - improved sparc32/64 signal frame setup - disabled x86 frame setup for x86_64

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3608 c046a42c-6fe2-441c-8c8c-71466251a162
775b58d8 11/11/2007 06:22 pm bellard

removed warnings - fixed arm stack copy bug

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3593 c046a42c-6fe2-441c-8c8c-71466251a162
579a97f7 11/11/2007 04:26 pm bellard

Linux user memory access API change (initial patch by Thayne Harbaugh)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3583 c046a42c-6fe2-441c-8c8c-71466251a162
d26bc211 11/08/2007 08:05 pm ths

Clean out the N32 macros from target-mips, and introduce MIPS ABI specific
defines for linux-user.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3556 c046a42c-6fe2-441c-8c8c-71466251a162
ec6338ba 11/08/2007 04:25 pm bellard

removed obsolete x86 code copy support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3551 c046a42c-6fe2-441c-8c8c-71466251a162
0da46a6e 10/20/2007 11:23 pm ths

Syscall target errno fixes, by Thayne Harbaugh.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3418 c046a42c-6fe2-441c-8c8c-71466251a162
992f48a0 10/14/2007 07:27 pm blueswir1

Support for 32 bit ABI on 64 bit targets (only enabled Sparc64)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3396 c046a42c-6fe2-441c-8c8c-71466251a162
5bfb56b2 10/05/2007 08:01 pm blueswir1

Implement sparc64_[gs]et_context

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3334 c046a42c-6fe2-441c-8c8c-71466251a162
540635ba 09/30/2007 04:58 am ths

Code provision for n32/n64 mips userland emulation. Not functional yet.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3284 c046a42c-6fe2-441c-8c8c-71466251a162
a04e134a 09/27/2007 04:57 pm ths

linux-user sigaltstack() syscall, by Thayne Harbaugh.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3252 c046a42c-6fe2-441c-8c8c-71466251a162
3b46e624 09/17/2007 11:09 am ths

find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in the regex.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
5fafdf24 09/17/2007 12:08 am ths

find -type f | xargs sed -i 's/[\t ]$//g' # on most files

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
ead9360e 09/06/2007 03:18 am ths

Partial support for 34K multithreading, not functional yet.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3156 c046a42c-6fe2-441c-8c8c-71466251a162
7f7f7c84 07/12/2007 02:02 pm ths

Sigio fd passing, by Alexander Graf.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3077 c046a42c-6fe2-441c-8c8c-71466251a162
aa1f17c1 07/12/2007 01:48 am ths

Spelling fixes, by Stefan Weil.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3066 c046a42c-6fe2-441c-8c8c-71466251a162
388bb21a 05/13/2007 04:58 pm ths

MIPS linux-user update.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2810 c046a42c-6fe2-441c-8c8c-71466251a162
84409ddb 04/06/2007 11:56 am j_mayer

Code provision for x86_64 and PowerPC 64 linux user mode support.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2619 c046a42c-6fe2-441c-8c8c-71466251a162
0aeaa8ce 03/31/2007 10:29 pm ths

Don't let sigaction handle SIGKILL/SIGSTOP, by Stuart Anderson.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2561 c046a42c-6fe2-441c-8c8c-71466251a162
fafffaef 10/28/2006 03:09 pm bellard

removed invalid code

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2202 c046a42c-6fe2-441c-8c8c-71466251a162
74ccb34e 07/19/2006 12:23 am bellard

Sparc64 host support (Blue Swirl)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2064 c046a42c-6fe2-441c-8c8c-71466251a162
106ec879 06/28/2006 12:08 am bellard

initial MIPS signal handling (initial patch by Raphael Rigo)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2031 c046a42c-6fe2-441c-8c8c-71466251a162
53a5960a 03/25/2006 09:31 pm pbrook

Avoid accessing guest memory directly in usermode emulation.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1790 c046a42c-6fe2-441c-8c8c-71466251a162
b5ff1b31 11/26/2005 12:38 pm bellard

ARM system emulation (Paul Brook)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1661 c046a42c-6fe2-441c-8c8c-71466251a162
1fddef4b 04/17/2005 10:16 pm bellard

gdb support for user mode (Paul Brook)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1367 c046a42c-6fe2-441c-8c8c-71466251a162
b8076a74 04/08/2005 01:20 am bellard

ia64 host support (David Mosberger)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1360 c046a42c-6fe2-441c-8c8c-71466251a162
a315a145 01/31/2005 12:59 am bellard

initial sparc64 support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1256 c046a42c-6fe2-441c-8c8c-71466251a162
80a9d035 01/04/2005 01:31 am bellard

64 bit target fixes - removed warnings

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1187 c046a42c-6fe2-441c-8c8c-71466251a162
e80cfcfc 12/20/2004 01:18 am bellard

SPARC merge

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1179 c046a42c-6fe2-441c-8c8c-71466251a162
6d5e216d 10/01/2004 01:04 am bellard

SPARC fixes (Blue Swirl)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1084 c046a42c-6fe2-441c-8c8c-71466251a162
9231944d 06/19/2004 07:58 pm bellard

sigset_t endianness fix in signal context

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@929 c046a42c-6fe2-441c-8c8c-71466251a162
edf779ff 02/22/2004 03:40 pm bellard

use kernel like macros for user access (will be useful someday to have a better error checking

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@634 c046a42c-6fe2-441c-8c8c-71466251a162
58fe2f10 02/17/2004 12:11 am bellard

experimental code copy support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@623 c046a42c-6fe2-441c-8c8c-71466251a162
773b93ee 01/04/2004 07:15 pm bellard

signal fix: update the host signal 'signal ignored' state to avoid unexpected -EINTR values (ash fix)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@503 c046a42c-6fe2-441c-8c8c-71466251a162
01e3b763 10/01/2003 12:10 am bellard

removed SIGIOT

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@395 c046a42c-6fe2-441c-8c8c-71466251a162
9dfa5b42 08/11/2003 11:35 pm bellard

64 bit fixes (Falk Hueffner)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@365 c046a42c-6fe2-441c-8c8c-71466251a162
9e5f5284 07/13/2003 08:33 pm bellard

convert signal numbers

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@328 c046a42c-6fe2-441c-8c8c-71466251a162
43fff238 07/09/2003 10:31 pm bellard

ARM signal support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@318 c046a42c-6fe2-441c-8c8c-71466251a162
68a79315 06/30/2003 04:12 pm bellard

reduced irq latency

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@296 c046a42c-6fe2-441c-8c8c-71466251a162
a52c757c 06/21/2003 04:14 pm bellard

fixed case where SS != USER_DS (fixes dosemu DPMI emulation)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@256 c046a42c-6fe2-441c-8c8c-71466251a162
b346ff46 06/15/2003 11:05 pm bellard

ARM emulation support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@244 c046a42c-6fe2-441c-8c8c-71466251a162
ed2dcdf6 05/29/2003 11:06 pm bellard

save FPU state in signal handler

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@201 c046a42c-6fe2-441c-8c8c-71466251a162
c9087c2a 05/28/2003 02:25 am bellard

cr2 update (dosemu VGA support fix)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@191 c046a42c-6fe2-441c-8c8c-71466251a162
447db213 05/10/2003 06:10 pm bellard

sigtrap support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@147 c046a42c-6fe2-441c-8c8c-71466251a162
66099dd9 05/08/2003 06:34 pm bellard

added trapno and error_code report in ucontext

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@124 c046a42c-6fe2-441c-8c8c-71466251a162
0d330196 04/30/2003 12:10 am bellard

ia64 support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@115 c046a42c-6fe2-441c-8c8c-71466251a162
2677e107 04/10/2003 03:03 am bellard

warning fix

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@88 c046a42c-6fe2-441c-8c8c-71466251a162
bc8a22cc 03/31/2003 12:02 am bellard

better vm86 support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@69 c046a42c-6fe2-441c-8c8c-71466251a162
d1f2367b 03/29/2003 06:53 pm bellard

changed flag names

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@58 c046a42c-6fe2-441c-8c8c-71466251a162
3ef693a0 03/23/2003 10:17 pm bellard

distribution patches

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@44 c046a42c-6fe2-441c-8c8c-71466251a162
9de5e440 03/23/2003 06:49 pm bellard

better signal/exception support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@42 c046a42c-6fe2-441c-8c8c-71466251a162
66fb9763 03/23/2003 03:06 am bellard

basic signal handling

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@41 c046a42c-6fe2-441c-8c8c-71466251a162
31e31b8a 02/19/2003 12:55 am bellard

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