[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 07/34] linux-user: Support for restarting system cal
From: |
Timothy E Baldwin |
Subject: |
[Qemu-devel] [PATCH 07/34] linux-user: Support for restarting system calls for PPC targets |
Date: |
Sun, 6 Sep 2015 00:57:01 +0100 |
Signed-off-by: Timothy Edward Baldwin <address@hidden>
---
linux-user/main.c | 4 ++++
linux-user/ppc/syscall.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/linux-user/main.c b/linux-user/main.c
index 124e9cc..5e9e3a8 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -1948,6 +1948,10 @@ void cpu_loop(CPUPPCState *env)
ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
env->gpr[5], env->gpr[6], env->gpr[7],
env->gpr[8], 0, 0);
+ if (ret == (target_ulong)(-TARGET_ERESTARTSYS)) {
+ env->nip -= 4;
+ break;
+ }
if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
/* Returning from a successful sigreturn syscall.
Avoid corrupting register state. */
diff --git a/linux-user/ppc/syscall.h b/linux-user/ppc/syscall.h
index 532cbbd..e75da7f 100644
--- a/linux-user/ppc/syscall.h
+++ b/linux-user/ppc/syscall.h
@@ -71,3 +71,5 @@ struct target_revectored_struct {
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 0x2000
#define TARGET_MLOCKALL_MCL_FUTURE 0x4000
+
+#define TARGET_USE_ERESTARTSYS 1
--
2.1.4
- Re: [Qemu-devel] [PATCH 09/34] linux-user: Test for restarting system calls, (continued)
- [Qemu-devel] [PATCH 19/34] linux-user: Restart fork() if signals pending, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 15/34] linux-user: Remove redundant get_errno() calls, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 17/34] linux-user: Use safe_syscall for wait system calls, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 21/34] linux-user: Remove redundant gdb_queuesig(), Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 10/34] linux-user: Support for restarting system calls for Microblaze targets, Timothy E Baldwin, 2015/09/05
- [Qemu-devel] [PATCH 07/34] linux-user: Support for restarting system calls for PPC targets,
Timothy E Baldwin <=
- [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