catch if cmd aborts

perf stat does not propagate if the measured cmd aborts.
To solve thing in a universal way we register a SIGABRT handler
which creates the file aborted

1 files changed, 21 insertions, 0 deletions

diff --git a/src/abort_handler.c b/src/abort_handler.c
new file mode 100644
index 0000000..8347f3a
--- /dev/null
+++ b/src/abort_handler.c
@@ -0,0 +1,21 @@
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void abort_handler(__attribute__((unused)) int signo) {
+	fopen("aborted", "w");
+}
+
+static void __attribute__((constructor)) register_abort_handler(void)
+{
+	struct sigaction sa;
+	sa.sa_handler = abort_handler;
+	sigemptyset(&sa.sa_mask);
+
+	if (sigaction(SIGABRT, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(1);
+	}
+}
+