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Clean up the TLS code

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Justine Tunney 2022-09-10 11:49:13 -07:00
parent cfcf5918bc
commit 333768440c
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8 changed files with 81 additions and 21 deletions
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35
test/libc/runtime/tls_test.c
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@ -16,12 +16,39 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/dce.h"
#include "libc/intrin/asan.internal.h"
#include "libc/testlib/testlib.h"
#include "libc/thread/thread.h"
#include "libc/thread/tls.h"
_Thread_local int x;
_Thread_local int y = 40;
int z = 2;
#define A TLS_ALIGNMENT
long z = 2;
pthread_t t;
_Thread_local long x;
_Thread_local long y[1] = {40};
_Alignas(A) _Thread_local long a;
noubsan void *Worker(void *arg) {
ASSERT_EQ(42, x + y[0] + z);
ASSERT_EQ(0, (intptr_t)&a & (A - 1));
if (IsAsan()) {
ASSERT_EQ(kAsanProtected, __asan_check(y + 1, sizeof(long)).kind);
}
return 0;
}
TEST(tls, test) {
EXPECT_EQ(42, x + y + z);
ASSERT_EQ(A, _Alignof(a));
ASSERT_EQ(0, sizeof(struct CosmoTib) % A);
ASSERT_EQ(0, (intptr_t)__get_tls() & (A - 1));
EXPECT_EQ(42, x + y[0] + z);
y[0] = 666;
ASSERT_EQ(0, (intptr_t)&a & (A - 1));
ASSERT_EQ(0, pthread_create(&t, 0, Worker, 0));
ASSERT_EQ(0, pthread_join(t, 0));
if (IsAsan()) {
ASSERT_EQ(kAsanProtected, __asan_check(y + 1, sizeof(long)).kind);
}
}