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[Qemu-devel] [PATCH 25/34] linux-user: Restart exit() if signal pending
From: |
Timothy E Baldwin |
Subject: |
[Qemu-devel] [PATCH 25/34] linux-user: Restart exit() if signal pending |
Date: |
Sun, 6 Sep 2015 00:57:19 +0100 |
Without this a signal could vanish on thread exit.
Signed-off-by: Timothy Edward Baldwin <address@hidden>
---
linux-user/syscall.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 4839154..efe61e3 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5719,8 +5719,12 @@ abi_long do_syscall(void *cpu_env, int num, abi_long
arg1,
However in threaded applictions it is used for thread termination,
and _exit_group is used for application termination.
Do thread termination if we have more then one thread. */
- /* FIXME: This probably breaks if a signal arrives. We should probably
- be disabling signals. */
+
+ if (block_signals()) {
+ ret = -TARGET_ERESTARTSYS;
+ break;
+ }
+
if (CPU_NEXT(first_cpu)) {
TaskState *ts;
--
2.1.4
- Re: [Qemu-devel] [PATCH 07/34] linux-user: Support for restarting system calls for PPC targets, (continued)
- [Qemu-devel] [PATCH 14/34] linux-user: Use safe_syscall for read and write system calls, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 16/34] linux-user: Use safe_syscall for open and openat system calls, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 08/34] linux-user: Support for restarting system calls for SPARC targets, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 20/34] linux-user: Remove redundant default action check in queue_signal(), Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 26/34] linux-user: Restart kill() if signal pending, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 25/34] linux-user: Restart exit() if signal pending,
Timothy E Baldwin <=
- [Qemu-devel] [PATCH 11/34] linux-user: Support for restarting system calls for SH4 targets, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 27/34] linux-user: pause() should not pause if signal pending, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 05/34] linux-user: Support for restarting system calls for ARM targets, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 13/34] linux-user: Fix signal before blocking system calls race and SA_RESTART, Timothy E Baldwin, 2015/09/05