Commit 1e35f929ef0df0e28c14655fa47406732f30cc73
2010-12-02T04:19:14
Add stack trace to the tests when building with GCC Signed-off-by: Vicent Marti <tanoku@gmail.com>
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diff --git a/tests/test_main.c b/tests/test_main.c
index 43bb434..2fa1bcc 100644
--- a/tests/test_main.c
+++ b/tests/test_main.c
@@ -26,6 +26,59 @@
#include "test_lib.h"
#include <string.h>
+
+/*
+ * print backtrace when a test fails;
+ * GCC only
+ */
+#ifdef __GNUC__
+#include <execinfo.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <unistd.h>
+
+typedef struct _sig_ucontext {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ struct sigcontext uc_mcontext;
+ sigset_t uc_sigmask;
+} sig_ucontext_t;
+
+void crash_handler(int sig_num, siginfo_t *info, void *ucontext)
+{
+ void *array[50];
+ void *caller_address;
+ char **messages;
+ int size, i;
+
+ sig_ucontext_t *uc;
+
+ uc = (sig_ucontext_t *)ucontext;
+
+ caller_address = (void *)uc->uc_mcontext.eip;
+
+ fprintf(stderr, "Signal %d (%s), address: %p from %p\n",
+ sig_num, strsignal(sig_num), info->si_addr,
+ (void *)caller_address);
+
+ size = backtrace(array, 50);
+ array[1] = caller_address;
+ messages = backtrace_symbols(array, size);
+
+ for (i = 1; i < size && messages != NULL; ++i)
+ fprintf(stderr, "\t(%d) %s\n", i, messages[i]);
+
+ free(messages);
+ exit(EXIT_FAILURE);
+}
+#endif
+
+
+
#undef BEGIN_TEST
#define BEGIN_TEST(name) extern void testfunc__##name(void);
#include TEST_TOC
@@ -45,6 +98,13 @@ int main(int argc, char **argv)
{
struct test_def *t;
+#ifdef __GNUC__
+ struct sigaction sigact;
+ sigact.sa_sigaction = crash_handler;
+ sigact.sa_flags = SA_RESTART | SA_SIGINFO;
+ sigaction(SIGSEGV, &sigact, (struct sigaction *)NULL);
+#endif
+
if (argc == 1) {
for (t = all_tests; t->name; t++)
t->fun();