X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2Fgcov.c;fp=tools%2Fgcov.c;h=f922d8d97ed1dc5496213d81840305c0d99c5985;hp=0000000000000000000000000000000000000000;hb=bcb956d9afb054a36c4f481900cdbc6587c4a2bf;hpb=0fd6bb104ac424b56326bd37de8b5057eb68243f

diff --git a/tools/gcov.c b/tools/gcov.c
new file mode 100644
index 00000000..f922d8d9
--- /dev/null
+++ b/tools/gcov.c
@@ -0,0 +1,36 @@
+#include "tools.h"
+#include <stdlib.h>
+#include <stdarg.h>
+
+bool run_gcov(const void *ctx, unsigned int *time_ms, char **output,
+	      const char *fmt, ...)
+{
+	char *args;
+	va_list ap;
+	bool rc;
+
+	va_start(ap, fmt);
+	args = tal_vfmt(ctx, fmt, ap);
+	rc = run_command(ctx, time_ms, output, "gcov %s", args);
+	tal_free(args);
+	return rc;
+}
+
+const char *gcov_unavailable(void *ctx)
+{
+	const char *err = NULL;
+
+#ifdef __GNUC__
+	unsigned int timeleft = default_timeout_ms;
+	char *output;
+
+	if (!run_gcov(ctx, &timeleft, &output, "-h")) {
+		err = tal_fmt(ctx, "No gcov support: %s", output);
+		tal_free(output);
+	}
+#else
+	err = "No coverage support for this compiler";
+#endif
+
+	return err;
+}