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Commit 5ec8d6ce authored by Shuah Khan's avatar Shuah Khan
Browse files

selftests: sigaltstack: convert to use TAP13 ksft framework 



Convert to use TAP13 ksft framework to output results.

Signed-off-by: default avatarShuah Khan <shuahkh@osg.samsung.com>
parent 5b1b9c58

tools/testing/selftests/sigaltstack/sas.c

+31 −22
Original line number Diff line number Diff line
@@ -17,6 +17,8 @@ 
#include <assert.h>

#include <errno.h>



#include "../kselftest.h"



#ifndef SS_AUTODISARM

#define SS_AUTODISARM  (1U << 31)

#endif
@@ -41,8 +43,7 @@ void my_usr1(int sig, siginfo_t *si, void *u) 


	if (sp < (unsigned long)sstack ||

			sp >= (unsigned long)sstack + SIGSTKSZ) {

		printf("[FAIL]\tSP is not on sigaltstack\n");

		exit(EXIT_FAILURE);

		ksft_exit_fail_msg("SP is not on sigaltstack\n");

	}

	/* put some data on stack. other sighandler will try to overwrite it */

	aa = alloca(1024);
@@ -50,21 +51,22 @@ void my_usr1(int sig, siginfo_t *si, void *u) 
	p = (struct stk_data *)(aa + 512);

	strcpy(p->msg, msg);

	p->flag = 1;

	printf("[RUN]\tsignal USR1\n");

	ksft_print_msg("[RUN]\tsignal USR1\n");

	err = sigaltstack(NULL, &stk);

	if (err) {

		perror("[FAIL]\tsigaltstack()");

		ksft_exit_fail_msg("sigaltstack() - %s\n", strerror(errno));

		exit(EXIT_FAILURE);

	}

	if (stk.ss_flags != SS_DISABLE)

		printf("[FAIL]\tss_flags=%x, should be SS_DISABLE\n",

		ksft_test_result_fail("tss_flags=%x, should be SS_DISABLE\n",

				stk.ss_flags);

	else

		printf("[OK]\tsigaltstack is disabled in sighandler\n");

		ksft_test_result_pass(

				"sigaltstack is disabled in sighandler\n");

	swapcontext(&sc, &uc);

	printf("%s\n", p->msg);

	ksft_print_msg("%s\n", p->msg);

	if (!p->flag) {

		printf("[RUN]\tAborting\n");

		ksft_exit_skip("[RUN]\tAborting\n");

		exit(EXIT_FAILURE);

	}

}
@@ -74,13 +76,13 @@ void my_usr2(int sig, siginfo_t *si, void *u) 
	char *aa;

	struct stk_data *p;



	printf("[RUN]\tsignal USR2\n");

	ksft_print_msg("[RUN]\tsignal USR2\n");

	aa = alloca(1024);

	/* dont run valgrind on this */

	/* try to find the data stored by previous sighandler */

	p = memmem(aa, 1024, msg, strlen(msg));

	if (p) {

		printf("[FAIL]\tsigaltstack re-used\n");

		ksft_test_result_fail("sigaltstack re-used\n");

		/* corrupt the data */

		strcpy(p->msg, msg2);

		/* tell other sighandler that his data is corrupted */
@@ -90,7 +92,7 @@ void my_usr2(int sig, siginfo_t *si, void *u) 


static void switch_fn(void)

{

	printf("[RUN]\tswitched to user ctx\n");

	ksft_print_msg("[RUN]\tswitched to user ctx\n");

	raise(SIGUSR2);

	setcontext(&sc);

}
@@ -101,6 +103,8 @@ int main(void) 
	stack_t stk;

	int err;



	ksft_print_header();



	sigemptyset(&act.sa_mask);

	act.sa_flags = SA_ONSTACK | SA_SIGINFO;

	act.sa_sigaction = my_usr1;
@@ -110,19 +114,20 @@ int main(void) 
	sstack = mmap(NULL, SIGSTKSZ, PROT_READ | PROT_WRITE,

		      MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);

	if (sstack == MAP_FAILED) {

		perror("mmap()");

		ksft_exit_fail_msg("mmap() - %s\n", strerror(errno));

		return EXIT_FAILURE;

	}



	err = sigaltstack(NULL, &stk);

	if (err) {

		perror("[FAIL]\tsigaltstack()");

		ksft_exit_fail_msg("sigaltstack() - %s\n", strerror(errno));

		exit(EXIT_FAILURE);

	}

	if (stk.ss_flags == SS_DISABLE) {

		printf("[OK]\tInitial sigaltstack state was SS_DISABLE\n");

		ksft_test_result_pass(

				"Initial sigaltstack state was SS_DISABLE\n");

	} else {

		printf("[FAIL]\tInitial sigaltstack state was %x; "

		ksft_exit_fail_msg("Initial sigaltstack state was %x; "

		       "should have been SS_DISABLE\n", stk.ss_flags);

		return EXIT_FAILURE;

	}
@@ -133,7 +138,8 @@ int main(void) 
	err = sigaltstack(&stk, NULL);

	if (err) {

		if (errno == EINVAL) {

			printf("[NOTE]\tThe running kernel doesn't support SS_AUTODISARM\n");

			ksft_exit_skip(

				"[NOTE]\tThe running kernel doesn't support SS_AUTODISARM\n");

			/*

			 * If test cases for the !SS_AUTODISARM variant were

			 * added, we could still run them.  We don't have any
@@ -142,7 +148,9 @@ int main(void) 
			 */

			return 0;

		} else {

			perror("[FAIL]\tsigaltstack(SS_ONSTACK | SS_AUTODISARM)");

			ksft_exit_fail_msg(

				"sigaltstack(SS_ONSTACK | SS_AUTODISARM)  %s\n",

					strerror(errno));

			return EXIT_FAILURE;

		}

	}
@@ -150,7 +158,7 @@ int main(void) 
	ustack = mmap(NULL, SIGSTKSZ, PROT_READ | PROT_WRITE,

		      MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);

	if (ustack == MAP_FAILED) {

		perror("mmap()");

		ksft_exit_fail_msg("mmap() - %s\n", strerror(errno));

		return EXIT_FAILURE;

	}

	getcontext(&uc);
@@ -162,16 +170,17 @@ int main(void) 


	err = sigaltstack(NULL, &stk);

	if (err) {

		perror("[FAIL]\tsigaltstack()");

		ksft_exit_fail_msg("sigaltstack() - %s\n", strerror(errno));

		exit(EXIT_FAILURE);

	}

	if (stk.ss_flags != SS_AUTODISARM) {

		printf("[FAIL]\tss_flags=%x, should be SS_AUTODISARM\n",

		ksft_exit_fail_msg("ss_flags=%x, should be SS_AUTODISARM\n",

				stk.ss_flags);

		exit(EXIT_FAILURE);

	}

	printf("[OK]\tsigaltstack is still SS_AUTODISARM after signal\n");

	ksft_test_result_pass(

			"sigaltstack is still SS_AUTODISARM after signal\n");



	printf("[OK]\tTest passed\n");

	ksft_exit_pass();

	return 0;

}