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[Qemu-devel] [PATCH 10/19] linux-user/strace.c: Correct errno printing f
From: |
riku . voipio |
Subject: |
[Qemu-devel] [PATCH 10/19] linux-user/strace.c: Correct errno printing for mmap etc |
Date: |
Tue, 31 Jan 2012 11:29:19 +0200 |
From: Peter Maydell <address@hidden>
Correct the printing of errnos for syscalls which are handled
via print_syscall_ret_addr (mmap, mmap2, brk, shmat): errnos
are returned as negative returned values at this level, not
via the host 'errno' variable.
Signed-off-by: Peter Maydell <address@hidden>
Signed-off-by: Riku Voipio <address@hidden>
---
linux-user/strace.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/linux-user/strace.c b/linux-user/strace.c
index 269481e..05a0d3e 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -1,5 +1,4 @@
#include <stdio.h>
-#include <errno.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/sem.h>
@@ -286,11 +285,11 @@ print_syscall_ret_addr(const struct syscallname *name,
abi_long ret)
{
char *errstr = NULL;
- if (ret == -1) {
- errstr = target_strerror(errno);
+ if (ret < 0) {
+ errstr = target_strerror(-ret);
}
- if ((ret == -1) && errstr) {
- gemu_log(" = -1 errno=%d (%s)\n", errno, errstr);
+ if (errstr) {
+ gemu_log(" = -1 errno=%d (%s)\n", (int)-ret, errstr);
} else {
gemu_log(" = 0x" TARGET_ABI_FMT_lx "\n", ret);
}
--
1.7.5.4
- [Qemu-devel] [PATCH 00/19] Pending linux-user patches, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 14/19] linux-user: Implement *listxattr syscalls, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 01/19] linux-user: stack_base is now mandatory on all targets, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 07/19] linux-user/main.c: Add option to user-mode emulation so that user can specify log file name, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 04/19] linux-user: fake /proc/self/maps, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 15/19] linux-user: Add default-configs for mipsn32[el], riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 18/19] linux-user: Define TARGET_QEMU_ESIGRETURN for mips64, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 03/19] linux-user: add open() hijack infrastructure, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 10/19] linux-user/strace.c: Correct errno printing for mmap etc,
riku . voipio <=
- [Qemu-devel] [PATCH 11/19] linux-user: fix wait* syscall status returns, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 06/19] linux-user: fake /proc/self/auxv, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 05/19] linux-user: fake /proc/self/stat, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 13/19] linux-user/syscall.c: Implement f and l versions of set/get/removexattr, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 17/19] linux-user: Define TARGET_QEMU_ESIGRETURN for mipsn32, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 12/19] linux-user: Allow NULL value pointer in setxattr and getxattr, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 16/19] linux-user: Add default configs for mips64[el], riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 09/19] linux-user: fix QEMU_STRACE=1 segfault, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 02/19] linux-user: save auxv length, riku . voipio, 2012/01/31
- [Qemu-devel] [PATCH 19/19] linux-user: Fix sa_flags byte swaps for mips, riku . voipio, 2012/01/31