diff options
| author | Chandler Carruth <chandlerc@gmail.com> | 2013-01-05 00:11:21 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2013-01-05 00:11:21 +0000 |
| commit | 4cff412ecc4c760f0bbade18da02169967dc5ccf (patch) | |
| tree | c0211779c47cc9a6da81de2aaeba49c533d09419 /lib/Support/Unix | |
| parent | 6601485662f92bf5b8726c7de35f8d90b0539a3f (diff) | |
Try to suppress the use of clock_gettime on Darwin which apparantly
defines _POSIX_CPUTIME but doesn't support the clock_* functions.
I don't test the value of _POSIX_CPUTIME because the spec merely says
that if it is defined, the CPU-specific timers are available, whereas it
says that _POSIX_TIMERS must be defined and defined to a value greater
than zero. However, this may not work, as the POSIX spec clearly states:
"If the symbolic constant _POSIX_CPUTIME is defined, then the symbolic
constant _POSIX_TIMERS shall also be defined by the implementation to
have the value 200112L."
If this doesn't work, I'll add more hacks for Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171565 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Support/Unix')
| -rw-r--r-- | lib/Support/Unix/Process.inc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Support/Unix/Process.inc b/lib/Support/Unix/Process.inc index a525538f78..c6dd3c0dc5 100644 --- a/lib/Support/Unix/Process.inc +++ b/lib/Support/Unix/Process.inc @@ -69,7 +69,7 @@ static std::pair<TimeValue, TimeValue> getRUsageTimes() { } TimeValue self_process::get_user_time() const { -#ifdef _POSIX_CPUTIME +#if _POSIX_TIMERS > 0 && defined(_POSIX_CPUTIME) // Try to get a high resolution CPU timer. struct timespec TS; if (::clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &TS) == 0) |