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authorPeter Maydell <peter.maydell@linaro.org>2011-11-21 12:21:19 +0000
committerRiku Voipio <riku.voipio@linaro.org>2012-02-02 17:51:20 +0200
commit2a7e12455c1d388e41f4c8d2231fb48a968792cd (patch)
treeaab7c17bd0c1fc734bdfbe0ac63b3d82a6cee73c /linux-user/strace.c
parent962b289ef35087fcd8764e4e29808d8ac90157f7 (diff)
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linux-user/strace.c: Correct errno printing for mmap etc
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 <peter.maydell@linaro.org> Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user/strace.c')
-rw-r--r--linux-user/strace.c9
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);
}