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[tsan] Make tests that use CLOCK_MONOTONIC portable

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Several tests rely on CLOCK_MONOTONIC, which doesn't exist on OS X. This patch fixes these tests by either disabling them (in case of cond_version.c which doesn't make sense on OS X), or by porting the test to also work on OS X.

Differential Revision: http://reviews.llvm.org/D14861

llvm-svn: 253658
This commit is contained in:
Kuba Brecka 2015-11-20 11:07:16 +00:00
parent a8dd275609
commit 8aa56d3cc8
4 changed files with 30 additions and 8 deletions
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3
compiler-rt/test/tsan/cond_version.c
View File

@ -3,6 +3,9 @@
// previously there were issues with versioned symbols.
// CHECK: OK
// OS X doesn't have pthread_condattr_setclock.
// UNSUPPORTED: darwin
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>

7
compiler-rt/test/tsan/real_deadlock_detector_stress_test.cc
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@ -8,6 +8,7 @@
#include <errno.h>
#include <vector>
#include <algorithm>
#include <sys/time.h>
const int kThreads = 4;
const int kMutexes = 16 << 10;
@ -165,9 +166,9 @@ void *Thread(void *seed) {
}
int main() {
timespec ts;
clock_gettime(CLOCK_MONOTONIC, &ts);
unsigned s = (unsigned)ts.tv_nsec;
struct timeval tv;
gettimeofday(&tv, NULL);
unsigned s = tv.tv_sec + tv.tv_usec;
fprintf(stderr, "seed %d\n", s);
srand(s);
for (int i = 0; i < kMutexes; i++)

10
compiler-rt/test/tsan/setuid2.c
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@ -7,11 +7,11 @@
// Test that setuid call works in presence of stoptheworld.
int main() {
struct timespec tp0, tp1;
clock_gettime(CLOCK_MONOTONIC, &tp0);
clock_gettime(CLOCK_MONOTONIC, &tp1);
while (tp1.tv_sec - tp0.tv_sec < 3) {
clock_gettime(CLOCK_MONOTONIC, &tp1);
unsigned long long tp0, tp1;
tp0 = monotonic_clock_ns();
tp1 = monotonic_clock_ns();
while (tp1 - tp0 < 3 * 1000000000ull) {
tp1 = monotonic_clock_ns();
setuid(0);
}
fprintf(stderr, "DONE\n");

18
compiler-rt/test/tsan/test.h
View File

@ -6,6 +6,10 @@
#include <stddef.h>
#include <sched.h>
#ifdef __APPLE__
#include <mach/mach_time.h>
#endif
// TSan-invisible barrier.
// Tests use it to establish necessary execution order in a way that does not
// interfere with tsan (does not establish synchronization between threads).
@ -60,3 +64,17 @@ void print_address(void *address) {
fprintf(stderr, format, (unsigned long) address);
#endif
}
#ifdef __APPLE__
unsigned long long monotonic_clock_ns() {
static mach_timebase_info_data_t timebase_info;
if (timebase_info.denom == 0) mach_timebase_info(&timebase_info);
return (mach_absolute_time() * timebase_info.numer) / timebase_info.denom;
}
#else
unsigned long long monotonic_clock_ns() {
struct timespec t;
clock_gettime(CLOCK_MONOTONIC, &t);
return (unsigned long long)t.tv_sec * 1000000000ull + t.tv_nsec;
}
#endif