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agent: Fix calibrate_get_time use of clock_gettime.

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* agent/protect.c (USE_CLOCK_GETTIME): New macro.
(calibrate_get_time): Only use clock_gettime if USE_CLOCK_GETTIME.

--

GnuPG-bug-id: 5623
Fixes-commit: 380bce13d94ff03c96e39ac1d834f382c5c730a1
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2021-10-05 11:53:29 +09:00
parent 84fcd8e6eb
commit eeb25df6f8
1 changed files with 22 additions and 1 deletions
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23
agent/protect.c
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@ -96,6 +96,27 @@ hash_passphrase (const char *passphrase, int hashalgo,
/*
* Determine if we can use clock_gettime with CLOCK_THREAD_CPUTIME_ID,
* at compile time.
*/
#if defined (CLOCK_THREAD_CPUTIME_ID)
# if _POSIX_THREAD_CPUTIME > 0
# define USE_CLOCK_GETTIME 1
# elif _POSIX_THREAD_CPUTIME == 0
/*
* In this case, we should check sysconf with _POSIX_THREAD_CPUTIME at
* run time. As heuristics, for system with newer GNU C library, we
* can assume it is available.
*/
# if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 17
# define USE_CLOCK_GETTIME 1
# endif
# endif
#else
#undef USE_CLOCK_GETTIME
#endif
/* Get the process time and store it in DATA. */
static void
calibrate_get_time (struct calibrate_time_s *data)
@ -110,7 +131,7 @@ calibrate_get_time (struct calibrate_time_s *data)
&data->creation_time, &data->exit_time,
&data->kernel_time, &data->user_time);
# endif
#elif defined (CLOCK_THREAD_CPUTIME_ID)
#elif defined (USE_CLOCK_GETTIME)
struct timespec tmp;
clock_gettime (CLOCK_THREAD_CPUTIME_ID, &tmp);