tools/testing/selftests/bpf/test_loader.c

Source file repositories/reference/linux-study-clean/tools/testing/selftests/bpf/test_loader.c

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/bpf/test_loader.c
Extension
.c
Size
41814 bytes
Lines
1582
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: implementation source
Status
source implementation candidate

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

struct test_subspec {
	char *name;
	char *description;
	bool expect_failure;
	struct expected_msgs expect_msgs;
	struct expected_msgs expect_xlated;
	struct expected_msgs jited;
	struct expected_msgs stderr;
	struct expected_msgs stdout;
	int retval;
	bool execute;
	__u64 caps;
};

struct test_spec {
	const char *prog_name;
	struct test_subspec priv;
	struct test_subspec unpriv;
	const char *btf_custom_path;
	const char *btf_custom_func_path;
	int log_level;
	int prog_flags;
	int mode_mask;
	int arch_mask;
	int load_mask;
	int linear_sz;
	bool auxiliary;
	bool valid;
};

static int tester_init(struct test_loader *tester)
{
	if (!tester->log_buf) {
		tester->log_buf_sz = TEST_LOADER_LOG_BUF_SZ;
		tester->log_buf = calloc(tester->log_buf_sz, 1);
		if (!ASSERT_OK_PTR(tester->log_buf, "tester_log_buf"))
			return -ENOMEM;
	}

	return 0;
}

void test_loader_fini(struct test_loader *tester)
{
	if (!tester)
		return;

	free(tester->log_buf);
}

void free_msgs(struct expected_msgs *msgs)
{
	int i;

	for (i = 0; i < msgs->cnt; i++)
		if (msgs->patterns[i].is_regex)
			regfree(&msgs->patterns[i].regex);
	free(msgs->patterns);
	msgs->patterns = NULL;
	msgs->cnt = 0;
}

static void free_test_spec(struct test_spec *spec)
{
	/* Deallocate expect_msgs arrays. */
	free_msgs(&spec->priv.expect_msgs);
	free_msgs(&spec->unpriv.expect_msgs);
	free_msgs(&spec->priv.expect_xlated);
	free_msgs(&spec->unpriv.expect_xlated);
	free_msgs(&spec->priv.jited);
	free_msgs(&spec->unpriv.jited);
	free_msgs(&spec->unpriv.stderr);
	free_msgs(&spec->priv.stderr);
	free_msgs(&spec->unpriv.stdout);
	free_msgs(&spec->priv.stdout);

	free(spec->priv.name);
	free(spec->priv.description);
	free(spec->unpriv.name);
	free(spec->unpriv.description);
	spec->priv.name = NULL;
	spec->priv.description = NULL;
	spec->unpriv.name = NULL;
	spec->unpriv.description = NULL;
}

/* Compiles regular expression matching pattern.
 * Pattern has a special syntax:
 *
 *   pattern := (<verbatim text> | regex)*

Annotation

Implementation Notes