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[Qemu-devel] [PATCH 18/18] linux-user: Special-case ERESTARTSYS in targe
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH 18/18] linux-user: Special-case ERESTARTSYS in target_strerror() |
Date: |
Mon, 6 Jun 2016 19:58:19 +0100 |
Since TARGET_ERESTARTSYS and TARGET_ESIGRETURN are internal-to-QEMU
error numbers, handle them specially in target_strerror(), to avoid
confusing strace output like:
9521 rt_sigreturn(14,8,274886297808,8,0,268435456) = -1 errno=513 (Unknown
error 513)
Signed-off-by: Peter Maydell <address@hidden>
---
linux-user/syscall.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index bcee02d..782d475 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -619,6 +619,13 @@ static inline int is_error(abi_long ret)
const char *target_strerror(int err)
{
+ if (err == TARGET_ERESTARTSYS) {
+ return "To be restarted";
+ }
+ if (err == TARGET_QEMU_ESIGRETURN) {
+ return "Successful exit from sigreturn";
+ }
+
if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) {
return NULL;
}
--
1.9.1
- [Qemu-devel] [PATCH 16/18] linux-user: Use safe_syscall wrapper for fcntl, (continued)
- [Qemu-devel] [PATCH 08/18] linux-user: Use safe_syscall wrapper for sleep syscalls, Peter Maydell, 2016/06/06
- [Qemu-devel] [PATCH 05/18] linux-user: Use safe_syscall wrapper for mq_timedsend and mq_timedreceive, Peter Maydell, 2016/06/06
- [Qemu-devel] [PATCH 03/18] linux-user: Use safe_syscall wrapper for send* and recv* syscalls, Peter Maydell, 2016/06/06
- [Qemu-devel] [PATCH 18/18] linux-user: Special-case ERESTARTSYS in target_strerror(),
Peter Maydell <=
- Re: [Qemu-devel] [PATCH 00/18] linux-user: Extend safe_syscall wrapper use, Riku Voipio, 2016/06/08