tests/glibc: add backtrace test

Author: no92

tests/glibc/backtrace.c

@@ -0,0 +1,24 @@
+#include <assert.h>
+#include <execinfo.h>
+#include <stdio.h>
+#include <unistd.h>
+
+void func() {
+	void *callstack[128];
+	int frames = backtrace(callstack, 128);
+	fprintf(stderr, "backtrace returns %d frames:\n", frames);
+	// we expect at least 3 frames: _start, main and func
+	assert(frames >= 3);
+
+	backtrace_symbols_fd(callstack, frames, STDERR_FILENO);
+	return;
+}
+
+int main(int argc, char **argv) {
+	(void) argc;
+	(void) argv;
+
+	func();
+
+	return 0;
+}

tests/meson.build

@@ -114,6 +114,7 @@ all_test_cases = [
 	'glibc/error_at_line',
 	'glibc/getgrouplist',
 	'glibc/rpmatch',
+	'glibc/backtrace',
 	'linux/xattr',
 	'linux/pthread_setname_np',
 	'linux/pthread_attr',