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61 lines
1.9 KiB
61 lines
1.9 KiB
// Copyright 2022 The Centipede Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "./centipede/runner_utils.h"
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#include <pthread.h>
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#include <cstdint>
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#include <cstdio>
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#include <cstdlib>
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#include "absl/base/nullability.h"
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namespace fuzztest::internal {
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void PrintErrorAndExitIf(bool condition, const char* absl_nonnull error) {
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if (!condition) return;
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fprintf(stderr, "error: %s\n", error);
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exit(1);
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}
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uintptr_t GetCurrentThreadStackRegionLow() {
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#ifdef __APPLE__
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pthread_t self = pthread_self();
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const auto stack_addr =
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reinterpret_cast<uintptr_t>(pthread_get_stackaddr_np(self));
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const auto stack_size = pthread_get_stacksize_np(self);
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return stack_addr - stack_size;
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#else // __APPLE__
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pthread_attr_t attr = {};
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if (pthread_getattr_np(pthread_self(), &attr) != 0) {
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fprintf(stderr, "Failed to get the pthread attr of the current thread.\n");
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return 0;
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}
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void *stack_addr = nullptr;
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size_t stack_size = 0;
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if (pthread_attr_getstack(&attr, &stack_addr, &stack_size) != 0) {
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fprintf(stderr, "Failed to get the stack region of the current thread.\n");
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pthread_attr_destroy(&attr);
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return 0;
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}
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pthread_attr_destroy(&attr);
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const auto stack_region_low = reinterpret_cast<uintptr_t>(stack_addr);
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RunnerCheck(stack_region_low != 0,
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"the current thread stack region starts from 0 - unexpected!");
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return stack_region_low;
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#endif // __APPLE__
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}
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} // namespace fuzztest::internal
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