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| //===-- sanitizer_posix_test.cpp ------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Tests for POSIX-specific code.
//
//===----------------------------------------------------------------------===//
#include "sanitizer_common/sanitizer_platform.h"
#if SANITIZER_POSIX
#include "sanitizer_common/sanitizer_common.h"
#include "gtest/gtest.h"
#include <pthread.h>
#include <sys/mman.h>
namespace __sanitizer {
static pthread_key_t key;
static bool destructor_executed;
extern "C"
void destructor(void *arg) {
uptr iter = reinterpret_cast<uptr>(arg);
if (iter > 1) {
ASSERT_EQ(0, pthread_setspecific(key, reinterpret_cast<void *>(iter - 1)));
return;
}
destructor_executed = true;
}
extern "C"
void *thread_func(void *arg) {
return reinterpret_cast<void*>(pthread_setspecific(key, arg));
}
static void SpawnThread(uptr iteration) {
destructor_executed = false;
pthread_t tid;
ASSERT_EQ(0, pthread_create(&tid, 0, &thread_func,
reinterpret_cast<void *>(iteration)));
void *retval;
ASSERT_EQ(0, pthread_join(tid, &retval));
ASSERT_EQ(0, retval);
}
TEST(SanitizerCommon, PthreadDestructorIterations) {
ASSERT_EQ(0, pthread_key_create(&key, &destructor));
SpawnThread(GetPthreadDestructorIterations());
EXPECT_TRUE(destructor_executed);
SpawnThread(GetPthreadDestructorIterations() + 1);
#if SANITIZER_SOLARIS
// Solaris continues calling destructors beyond PTHREAD_DESTRUCTOR_ITERATIONS.
EXPECT_TRUE(destructor_executed);
#else
EXPECT_FALSE(destructor_executed);
#endif
ASSERT_EQ(0, pthread_key_delete(key));
}
TEST(SanitizerCommon, IsAccessibleMemoryRange) {
const int page_size = GetPageSize();
uptr mem = (uptr)mmap(0, 3 * page_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
// Protect the middle page.
mprotect((void *)(mem + page_size), page_size, PROT_NONE);
EXPECT_TRUE(IsAccessibleMemoryRange(mem, page_size - 1));
EXPECT_TRUE(IsAccessibleMemoryRange(mem, page_size));
EXPECT_FALSE(IsAccessibleMemoryRange(mem, page_size + 1));
EXPECT_TRUE(IsAccessibleMemoryRange(mem + page_size - 1, 1));
EXPECT_FALSE(IsAccessibleMemoryRange(mem + page_size - 1, 2));
EXPECT_FALSE(IsAccessibleMemoryRange(mem + 2 * page_size - 1, 1));
EXPECT_TRUE(IsAccessibleMemoryRange(mem + 2 * page_size, page_size));
EXPECT_FALSE(IsAccessibleMemoryRange(mem, 3 * page_size));
EXPECT_FALSE(IsAccessibleMemoryRange(0x0, 2));
}
} // namespace __sanitizer
#endif // SANITIZER_POSIX
|