mprotect02 triggered an expected SIGSEGV in test, but it puts this
information in dmesg, which might cause confusion when checking results:
mprotect02[11416]: segfault at 7f9ca0060000 ip 0000003a8e3382ff sp
00007fff7aeecb68 error 6 in libc-2.12.so[3a8e200000+197000]
This patch hides the sigfault information from dmesg.
Signed-off-by: Caspar Zhang <[email protected]>
---
testcases/kernel/syscalls/mprotect/mprotect02.c | 20 +++++++++++++-------
1 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/testcases/kernel/syscalls/mprotect/mprotect02.c b/testcases/kernel/syscalls/mprotect/mprotect02.c
index 97250c5..1d1fad0 100644
--- a/testcases/kernel/syscalls/mprotect/mprotect02.c
+++ b/testcases/kernel/syscalls/mprotect/mprotect02.c
@@ -60,6 +60,7 @@
#include "safe_macros.h"
+static void sighandler(int sig);
static void cleanup(void);
static void setup(void);
@@ -121,13 +122,6 @@ int main(int ac, char **av)
if (waitpid(pid, &status, 0) == -1)
tst_brkm(TBROK|TERRNO, cleanup, "waitpid failed");
- if (WIFSIGNALED(status) && WTERMSIG(status) == SIGSEGV)
- tst_resm(TPASS, "got SIGSEGV as expected");
- else
- tst_brkm(TBROK, cleanup,
- "child exited abnormally; wait status = %d",
- status);
-
/* Change the protection to WRITE. */
TEST(mprotect(addr, sizeof(buf), PROT_WRITE));
@@ -185,9 +179,21 @@ int main()
#endif /* UCLINUX */
+static void sighandler(int sig)
+{
+ if (sig == SIGSEGV) {
+ tst_resm(TPASS, "got SIGSEGV as expected");
+ tst_exit();
+ } else
+ tst_brkm(TBROK, cleanup, "child exited abnormally: %d",
+ sig);
+}
+
static void setup()
{
+ tst_sig(FORK, sighandler, cleanup);
+
TEST_PAUSE;
tst_tmpdir();
------------------------------------------------------------------------------
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