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tests/restart_syscall: add a workaround for old arm kernels

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As arm kernels used to overwrite ARM_r0 with -EINTR after
ERESTART_RESTARTBLOCK, update regexp to workaround this.

* tests/restart_syscall.c (main) [__arm__]: Add 0xfffffffc as a valid
alternative value for the first argument of restarted nanosleep syscall.
This commit is contained in:
Дмитрий Левин 2015-12-13 01:12:55 +00:00
parent 2c2f663584
commit 703a7166ae
1 changed files with 8 additions and 1 deletions
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9
tests/restart_syscall.c
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@ -64,8 +64,15 @@ main(void)
(intmax_t) req.tv_sec, (intmax_t) req.tv_nsec,
(intmax_t) rem.tv_sec, (intmax_t) rem.tv_nsec);
puts("--- SIGALRM \\{si_signo=SIGALRM, si_code=SI_KERNEL\\} ---");
printf("(nanosleep\\(\\{%jd, %jd\\}, %p|restart_syscall\\(<\\.\\.\\."
#ifdef __arm__
/* old kernels used to overwrite ARM_r0 with -EINTR */
# define ALTERNATIVE_NANOSLEEP_REQ "0xfffffffc|"
#else
# define ALTERNATIVE_NANOSLEEP_REQ ""
#endif
printf("(nanosleep\\((%s\\{%jd, %jd\\}), %p|restart_syscall\\(<\\.\\.\\."
" resuming interrupted nanosleep \\.\\.\\.>)\\) = 0\n",
ALTERNATIVE_NANOSLEEP_REQ,
(intmax_t) req.tv_sec, (intmax_t) req.tv_nsec, &rem);
puts("\\+\\+\\+ exited with 0 \\+\\+\\+");