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add test for longjump with 0 as return value

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Signed-off-by: Gao Jiawei <gaojiawei@xiaomi.com>
This commit is contained in:
Gao Jiawei 2024-07-23 18:13:14 +08:00 • committed by Xiang Xiao
parent 3f08d4f11c
commit 30215c260b
1 changed files with 37 additions and 6 deletions
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43
testing/ostest/setjmp.c
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@ -32,17 +32,23 @@
* Public Functions
****************************************************************************/
void setjmp_test(void)
void jump_with_retval(jmp_buf buf, int ret)
{
volatile bool did_jump = false;
int value;
jmp_buf buf;
printf("setjmp_test: Initializing jmp_buf\n");
if ((value = setjmp(buf)) == 0)
{
printf("setjmp_test: Try jump\n");
longjmp(buf, 123);
if (did_jump)
{
ASSERT(!"setjmp retutns zero after calling longjmp");
}
did_jump = true;
printf("setjmp_test: About to jump, longjmp with ret val: %d\n", ret);
longjmp(buf, ret);
/* Unreachable */
@ -50,7 +56,32 @@ void setjmp_test(void)
}
else
{
ASSERT(value == 123);
/* If we provide 0 as the return value to longjmp()
* we expect it substitute to 1 for us.
*/
if (ret == 0)
{
ret = 1;
}
ASSERT(value == ret);
printf("setjmp_test: Jump succeed\n");
}
}
void setjmp_test(void)
{
jmp_buf buf;
printf("setjmp_test: Initializing jmp_buf\n");
jump_with_retval(buf, 123);
/* Pls ref to:
* the longjmp should never make setjmp returns 0
* https://pubs.opengroup.org/onlinepubs/009604599/functions/longjmp.html
*/
jump_with_retval(buf, 0);
}