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eina: make eina backtrace portable 

Backtrace relied on non-portable code.
Platform-specific code is now enclosed
within macros defined at configuration-time.
This commit is contained in:
Jean Guyomarc'h 2016-05-28 13:50:13 +02:00
parent 9e761c9515
commit 9ee8ea196b
1 changed files with 24 additions and 4 deletions
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28
src/lib/eina/eina_debug_monitor.c
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@ -64,6 +64,28 @@ _eina_debug_unwind_bt(void **bt, int max)
return total;
}
static inline void
_bt_cpu_set(int slot)
{
#if HAVE_SCHED_GETCPU
_bt_cpu[slot] = sched_getcpu();
#else
_bt_cpu[slot] = -1;
#endif
}
static inline void
_bt_ts_set(int slot, pthread_t self)
{
#if defined(__clockid_t_defined)
clockid_t cid;
pthread_getcpuclockid(self, &cid);
clock_gettime(cid, &(_bt_ts[slot]));
#else
memset(&(_bt_ts[slot]), 0, sizeof(struct timespec));
#endif
}
// this signal handler is called inside each and every thread when the
// thread gets a signal via pthread_kill(). this causes the thread to
// stop here inside this handler and "do something" then when this returns
@ -75,7 +97,6 @@ _eina_debug_signal(int sig EINA_UNUSED,
{
int i, slot = 0;
pthread_t self = pthread_self();
clockid_t cid;
// find which slot in the array of threads we have so we store info
// in the correct slot for us
@ -100,9 +121,8 @@ found:
// we have consumed (it's cumulative so subtracing deltas can give
// you an average amount of cpu time consumed between now and the
// previous time we looked) and also a full backtrace
_bt_cpu[slot] = sched_getcpu();
pthread_getcpuclockid(self, &cid);
clock_gettime(cid, &(_bt_ts[slot]));
_bt_cpu_set(slot);
_bt_ts_set(slot, self);
_bt_buf_len[slot] = _eina_debug_unwind_bt(_bt_buf[slot], EINA_MAX_BT);
// now wake up the monitor to let them know we are done collecting our
// backtrace info