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lib: print a stack trace when a test assertion fails

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Add an optional dependency on libunwind to print stack traces when a
test assertion fails.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
This commit is contained in:
Thomas Wood
2015-03-13 17:02:12 +00:00
parent 2659cbbf64
commit 277ca2b992
8 changed files with 53 additions and 11 deletions
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lib/Makefile.am
+2 -3
View File
@@ -9,12 +9,11 @@ noinst_LTLIBRARIES = libintel_tools.la
noinst_HEADERS = check-ndebug.h
AM_CPPFLAGS = -I$(top_srcdir)
AM_CFLAGS = $(DRM_CFLAGS) $(CWARNFLAGS) \
AM_CFLAGS = $(DRM_CFLAGS) $(CWARNFLAGS) $(LIBUNWIND_CFLAGS) \
-DIGT_DATADIR=\""$(abs_top_srcdir)/tests"\" \
-DIGT_LOG_DOMAIN=\""$(subst _,-,$*)"\" \
-pthread
LDADD = $(CAIRO_LIBS)
LDADD = $(CAIRO_LIBS) $(LIBUNWIND_LIBS)
AM_CFLAGS += $(CAIRO_CFLAGS)
lib/igt_core.c
+31
View File
@@ -962,6 +962,33 @@ static bool run_under_gdb(void)
strncmp(basename(buf), "gdb", 3) == 0);
}
#ifdef HAVE_LIBUNWIND
#define UNW_LOCAL_ONLY
#include <libunwind.h>
static void print_backtrace(void)
{
unw_cursor_t cursor;
unw_context_t uc;
int stack_num = 0;
printf("Stack trace:\n");
unw_getcontext(&uc);
unw_init_local(&cursor, &uc);
while (unw_step(&cursor) > 0) {
char name[255];
unw_word_t off;
if (unw_get_proc_name(&cursor, name, 255, &off) < 0)
strcpy(name, "<unknown>");
printf(" #%d [%s+0x%x]\n", stack_num++, name,
(unsigned int) off);
}
}
#endif
void __igt_fail_assert(int exitcode, const char *domain, const char *file,
const int line, const char *func, const char *assertion,
const char *f, ...)
@@ -983,6 +1010,10 @@ void __igt_fail_assert(int exitcode, const char *domain, const char *file,
va_end(args);
}
#ifdef HAVE_LIBUNWIND
print_backtrace();
#endif
if (run_under_gdb())
abort();
igt_fail(exitcode);