forked from OSchip/llvm-project
81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
//===-- sanitizer_posix_test.cc -------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Tests for POSIX-specific code.
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//
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//===----------------------------------------------------------------------===//
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#include "sanitizer_common/sanitizer_platform.h"
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#if SANITIZER_POSIX
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#include "sanitizer_common/sanitizer_common.h"
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#include "gtest/gtest.h"
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#include <pthread.h>
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#include <sys/mman.h>
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namespace __sanitizer {
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static pthread_key_t key;
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static bool destructor_executed;
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extern "C"
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void destructor(void *arg) {
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uptr iter = reinterpret_cast<uptr>(arg);
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if (iter > 1) {
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ASSERT_EQ(0, pthread_setspecific(key, reinterpret_cast<void *>(iter - 1)));
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return;
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}
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destructor_executed = true;
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}
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extern "C"
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void *thread_func(void *arg) {
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return reinterpret_cast<void*>(pthread_setspecific(key, arg));
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}
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static void SpawnThread(uptr iteration) {
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destructor_executed = false;
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pthread_t tid;
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ASSERT_EQ(0, pthread_create(&tid, 0, &thread_func,
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reinterpret_cast<void *>(iteration)));
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void *retval;
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ASSERT_EQ(0, pthread_join(tid, &retval));
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ASSERT_EQ(0, retval);
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}
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TEST(SanitizerCommon, PthreadDestructorIterations) {
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ASSERT_EQ(0, pthread_key_create(&key, &destructor));
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SpawnThread(GetPthreadDestructorIterations());
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EXPECT_TRUE(destructor_executed);
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SpawnThread(GetPthreadDestructorIterations() + 1);
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EXPECT_FALSE(destructor_executed);
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}
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TEST(SanitizerCommon, IsAccessibleMemoryRange) {
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const int page_size = GetPageSize();
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uptr mem = (uptr)mmap(0, 3 * page_size, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANON, -1, 0);
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// Protect the middle page.
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mprotect((void *)(mem + page_size), page_size, PROT_NONE);
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EXPECT_TRUE(IsAccessibleMemoryRange(mem, page_size - 1));
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EXPECT_TRUE(IsAccessibleMemoryRange(mem, page_size));
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EXPECT_FALSE(IsAccessibleMemoryRange(mem, page_size + 1));
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EXPECT_TRUE(IsAccessibleMemoryRange(mem + page_size - 1, 1));
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EXPECT_FALSE(IsAccessibleMemoryRange(mem + page_size - 1, 2));
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EXPECT_FALSE(IsAccessibleMemoryRange(mem + 2 * page_size - 1, 1));
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EXPECT_TRUE(IsAccessibleMemoryRange(mem + 2 * page_size, page_size));
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EXPECT_FALSE(IsAccessibleMemoryRange(mem, 3 * page_size));
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EXPECT_FALSE(IsAccessibleMemoryRange(0x0, 2));
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}
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} // namespace __sanitizer
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#endif // SANITIZER_POSIX
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