From: Aurelien Jarno <aurelien@aurel32.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [6151] Fix qemu endless loop when raising a SIGSEGV/ SIGBUS signal with gdbstub in user emulation
Date: Sat, 03 Jan 2009 13:14:52 +0000 [thread overview]
Message-ID: <E1LJ6L6-0000j0-TB@cvs.savannah.gnu.org> (raw)
Revision: 6151
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6151
Author: aurel32
Date: 2009-01-03 13:14:52 +0000 (Sat, 03 Jan 2009)
Log Message:
-----------
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
info->si_code > 0
Signed-off-by: Lionel Landwerlin <lionel.landwerlin@openwide.fr>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Modified Paths:
--------------
trunk/linux-user/signal.c
Modified: trunk/linux-user/signal.c
===================================================================
--- trunk/linux-user/signal.c 2009-01-03 12:36:05 UTC (rev 6150)
+++ trunk/linux-user/signal.c 2009-01-03 13:14:52 UTC (rev 6151)
@@ -441,9 +441,9 @@
target_siginfo_t tinfo;
/* the CPU emulator uses some host signals to detect exceptions,
- we we forward to it some signals */
+ we forward to it some signals */
if ((host_signum == SIGSEGV || host_signum == SIGBUS)
- && info->si_code == SI_KERNEL) {
+ && info->si_code > 0) {
if (cpu_signal_handler(host_signum, info, puc))
return;
}
reply other threads:[~2009-01-03 13:14 UTC|newest]
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