[librseq.git] / tests / no_syscall_test.c

// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: 2024 Michael Jeanson <mjeanson@efficios.com>

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <stdint.h>

#include <rseq/rseq.h>

#include "tap.h"

#define NR_TESTS 4

/*
 * Check the state of the public symbols when the rseq syscall is unavailable.
 *
 * This test must be used with an LD_PRELOAD library to deny access to the
 * syscall, or on a kernel that doesn't implement the syscall.
 */

int main(void)
{
	struct rseq_abi *rseq_abi;

	plan_tests(NR_TESTS);

	if (rseq_available(RSEQ_AVAILABLE_QUERY_KERNEL)) {
		fail("The rseq syscall should be unavailable");
		goto end;
	}

	/* The rseq syscall is disabled, no registration is possible. */

	ok(rseq_flags == 0, "rseq_flags prior to registration is 0 (%d)", rseq_flags);
	ok(rseq_size == 0, "rseq_size prior to registration is 0 (%d)", rseq_size);
	ok(rseq_offset != 0, "rseq_offset prior to registration is not 0 (%td)", rseq_offset);

	rseq_abi = rseq_get_abi();
	ok((int32_t) rseq_abi->cpu_id == RSEQ_ABI_CPU_ID_UNINITIALIZED,
			"rseq->cpu_id is set to RSEQ_ABI_CPU_ID_UNINITIALIZED (%d)",
			(int32_t) rseq_abi->cpu_id);

end:
	exit(exit_status());
}
Commit	Line	Data
	1	// SPDX-License-Identifier: MIT
	2	// SPDX-FileCopyrightText: 2024 Michael Jeanson <mjeanson@efficios.com>
	3
	4	#ifndef _GNU_SOURCE
	5	#define _GNU_SOURCE
	6	#endif
	7	#include <stdint.h>
	8
	9	#include <rseq/rseq.h>
	10
	11	#include "tap.h"
	12
	13	#define NR_TESTS 4
	14
	15	/*
	16	* Check the state of the public symbols when the rseq syscall is unavailable.
	17	*
	18	* This test must be used with an LD_PRELOAD library to deny access to the
	19	* syscall, or on a kernel that doesn't implement the syscall.
	20	*/
	21
	22	int main(void)
	23	{
	24	struct rseq_abi *rseq_abi;
	25
	26	plan_tests(NR_TESTS);
	27
	28	if (rseq_available(RSEQ_AVAILABLE_QUERY_KERNEL)) {
	29	fail("The rseq syscall should be unavailable");
	30	goto end;
	31	}
	32
	33	/* The rseq syscall is disabled, no registration is possible. */
	34
	35	ok(rseq_flags == 0, "rseq_flags prior to registration is 0 (%d)", rseq_flags);
	36	ok(rseq_size == 0, "rseq_size prior to registration is 0 (%d)", rseq_size);
	37	ok(rseq_offset != 0, "rseq_offset prior to registration is not 0 (%td)", rseq_offset);
	38
	39	rseq_abi = rseq_get_abi();
	40	ok((int32_t) rseq_abi->cpu_id == RSEQ_ABI_CPU_ID_UNINITIALIZED,
	41	"rseq->cpu_id is set to RSEQ_ABI_CPU_ID_UNINITIALIZED (%d)",
	42	(int32_t) rseq_abi->cpu_id);
	43
	44	end:
	45	exit(exit_status());
	46	}