tools/testing/selftests/kselftest.h

Source file repositories/reference/linux-study-clean/tools/testing/selftests/kselftest.h

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/kselftest.h
Extension
.h
Size
12095 bytes
Lines
491
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 ksft_count {
	unsigned int ksft_pass;
	unsigned int ksft_fail;
	unsigned int ksft_xfail;
	unsigned int ksft_xpass;
	unsigned int ksft_xskip;
	unsigned int ksft_error;
};

static struct ksft_count ksft_cnt;
static unsigned int ksft_plan;
static bool ksft_debug_enabled;

static inline unsigned int ksft_test_num(void)
{
	return ksft_cnt.ksft_pass + ksft_cnt.ksft_fail +
		ksft_cnt.ksft_xfail + ksft_cnt.ksft_xpass +
		ksft_cnt.ksft_xskip + ksft_cnt.ksft_error;
}

static inline void ksft_inc_pass_cnt(void) { ksft_cnt.ksft_pass++; }
static inline void ksft_inc_fail_cnt(void) { ksft_cnt.ksft_fail++; }
static inline void ksft_inc_xfail_cnt(void) { ksft_cnt.ksft_xfail++; }
static inline void ksft_inc_xpass_cnt(void) { ksft_cnt.ksft_xpass++; }
static inline void ksft_inc_xskip_cnt(void) { ksft_cnt.ksft_xskip++; }
static inline void ksft_inc_error_cnt(void) { ksft_cnt.ksft_error++; }

static inline int ksft_get_pass_cnt(void) { return ksft_cnt.ksft_pass; }
static inline int ksft_get_fail_cnt(void) { return ksft_cnt.ksft_fail; }
static inline int ksft_get_xfail_cnt(void) { return ksft_cnt.ksft_xfail; }
static inline int ksft_get_xpass_cnt(void) { return ksft_cnt.ksft_xpass; }
static inline int ksft_get_xskip_cnt(void) { return ksft_cnt.ksft_xskip; }
static inline int ksft_get_error_cnt(void) { return ksft_cnt.ksft_error; }

static inline void ksft_print_header(void)
{
	/*
	 * Force line buffering; If stdout is not connected to a terminal, it
	 * will otherwise default to fully buffered, which can cause output
	 * duplication if there is content in the buffer when fork()ing. If
	 * there is a crash, line buffering also means the most recent output
	 * line will be visible.
	 */
	setvbuf(stdout, NULL, _IOLBF, 0);

	if (!(getenv("KSFT_TAP_LEVEL")))
		printf("TAP version 13\n");
}

static inline void ksft_set_plan(unsigned int plan)
{
	ksft_plan = plan;
	printf("1..%u\n", ksft_plan);
}

static inline void ksft_print_cnts(void)
{
	if (ksft_cnt.ksft_xskip > 0)
		printf(
			"# %u skipped test(s) detected. Consider enabling relevant config options to improve coverage.\n",
			ksft_cnt.ksft_xskip
		);
	if (ksft_plan != ksft_test_num())
		printf("# Planned tests != run tests (%u != %u)\n",
			ksft_plan, ksft_test_num());
	printf("# Totals: pass:%u fail:%u xfail:%u xpass:%u skip:%u error:%u\n",
		ksft_cnt.ksft_pass, ksft_cnt.ksft_fail,
		ksft_cnt.ksft_xfail, ksft_cnt.ksft_xpass,
		ksft_cnt.ksft_xskip, ksft_cnt.ksft_error);
}

static inline __printf(1, 2) void ksft_print_msg(const char *msg, ...)
{
	int saved_errno = errno;
	va_list args;

	va_start(args, msg);
	printf("# ");
	errno = saved_errno;
	vprintf(msg, args);
	va_end(args);
}

static inline void ksft_print_dbg_msg(const char *msg, ...)
{
	va_list args;

	if (!ksft_debug_enabled)
		return;

Annotation

Implementation Notes