libpayload: initial test case + tiny "framework"

This adds a test case for using CBFS images that reside in RAM
and a Makefile to run it (and maybe other tests in the future).

The test concerns an issue in libcbfs when using x86 style CBFS
images in non-canonical locations (eg. when loading CBFS images
for processing).

Use with "make run" inside the tests directory.

Change-Id: I1af3792a1451728ff9594ba7f0410027cdecb59d
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/2623
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/payloads/libpayload/tests/cbfs-x86-test.c b/payloads/libpayload/tests/cbfs-x86-test.c
new file mode 100644
index 0000000000..81029656fc
--- /dev/null
+++ b/payloads/libpayload/tests/cbfs-x86-test.c
@@ -0,0 +1,34 @@
+/* system headers */
+#include <stdlib.h>
+#include <stdio.h>
+
+/* libpayload headers */
+#include "cbfs.h"
+
+int fail(const char* str)
+{
+	fprintf(stderr, "%s", str);
+	exit(1);
+}
+
+int main(int argc, char** argv)
+{
+	FILE *cbfs = fopen("data/cbfs-x86.bin", "rb");
+	if (!cbfs) fail("could not open test file\n");
+	if (fseek(cbfs, 0, SEEK_END) != 0) fail("seek to end failed\n");
+
+	long size = ftell(cbfs);
+	if (size == -1) fail("could not determine file size\n");
+	if (fseek(cbfs, 0, SEEK_SET) != 0) fail("seek to start failed\n");
+
+	void *data = malloc(size);
+	if (!data) fail("could not allocate buffer\n");
+
+	if (fread(data, size, 1, cbfs) != 1) fail("could not read data\n");
+	if (fclose(cbfs)) fail("could not close file\n");
+
+	if (setup_cbfs_from_ram(data, size) != 0) fail("could not setup CBFS in RAM\n");
+	struct cbfs_file *file = cbfs_find("foo");
+	if (file == NULL) fail("could not find file in CBFS\n");
+	exit(0);
+}