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| author | Peter Maydell <peter.maydell@linaro.org> | 2011-11-21 12:21:19 +0000 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@linaro.org> | 2012-02-02 17:51:20 +0200 |
| commit | 2a7e12455c1d388e41f4c8d2231fb48a968792cd (patch) | |
| tree | aab7c17bd0c1fc734bdfbe0ac63b3d82a6cee73c /linux-user/strace.c | |
| parent | 962b289ef35087fcd8764e4e29808d8ac90157f7 (diff) | |
| download | qemu-2a7e12455c1d388e41f4c8d2231fb48a968792cd.tar.gz | |
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.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/linux-user/strace.c b/linux-user/strace.c index 269481e7ae..05a0d3e9d7 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); } |