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Fix pthread stacks with larger guard size

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This commit is contained in:
Justine Tunney 2022-09-09 06:19:05 -07:00
parent 1db76c288e
commit e97f1a99cf
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GPG key ID: BE714B4575D6E328
10 changed files with 68 additions and 42 deletions
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39
test/libc/thread/pthread_create_test.c
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@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/sigaction.h"
#include "libc/dce.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/pthread.h"
@ -25,13 +26,31 @@
#include "libc/runtime/runtime.h"
#include "libc/runtime/stack.h"
#include "libc/sysv/consts/prot.h"
#include "libc/sysv/consts/sa.h"
#include "libc/sysv/consts/sig.h"
#include "libc/testlib/ezbench.h"
#include "libc/testlib/subprocess.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/thread.h"
void OnTrap(int sig, struct siginfo *si, void *vctx) {
struct ucontext *ctx = vctx;
}
void SetUp(void) {
struct sigaction sig = {.sa_sigaction = OnTrap, .sa_flags = SA_SIGINFO};
sigaction(SIGTRAP, &sig, 0);
}
void TriggerSignal(void) {
sched_yield();
DebugBreak();
sched_yield();
}
static void *Increment(void *arg) {
ASSERT_EQ(gettid(), pthread_getthreadid_np());
TriggerSignal();
return (void *)((uintptr_t)arg + 1);
}
@ -44,6 +63,7 @@ TEST(pthread_create, testCreateReturnJoin) {
}
static void *IncExit(void *arg) {
TriggerSignal();
pthread_exit((void *)((uintptr_t)arg + 1));
}
@ -71,6 +91,7 @@ TEST(pthread_detach, testDetachUponCreation) {
static void *CheckStack(void *arg) {
char buf[1024 * 1024];
TriggerSignal();
CheckLargeStackAllocation(buf, 1024 * 1024);
return 0;
}
@ -85,6 +106,24 @@ TEST(pthread_detach, testBigStack) {
ASSERT_EQ(0, pthread_join(id, 0));
}
static void *CheckStack2(void *arg) {
char buf[57244];
TriggerSignal();
CheckLargeStackAllocation(buf, sizeof(buf));
return 0;
}
TEST(pthread_detach, testBiggerGuardSize) {
pthread_t id;
pthread_attr_t attr;
ASSERT_EQ(0, pthread_attr_init(&attr));
ASSERT_EQ(0, pthread_attr_setstacksize(&attr, 65536));
ASSERT_EQ(0, pthread_attr_setguardsize(&attr, 8192));
ASSERT_EQ(0, pthread_create(&id, &attr, CheckStack2, 0));
ASSERT_EQ(0, pthread_attr_destroy(&attr));
ASSERT_EQ(0, pthread_join(id, 0));
}
TEST(pthread_detach, testCustomStack_withReallySmallSize) {
char *stk;
size_t siz;