mirror of
https://github.com/SerenityOS/serenity.git
synced 2025-01-22 17:31:58 -05:00
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
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/*
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* Copyright (c) 2020, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Assertions.h>
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#include <AK/StackInfo.h>
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#include <stdio.h>
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#ifdef __serenity__
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# include <serenity.h>
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#elif __linux__ or __APPLE__
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# include <pthread.h>
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#endif
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namespace AK {
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StackInfo::StackInfo()
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{
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#ifdef __serenity__
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if (get_stack_bounds(&m_base, &m_size) < 0) {
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perror("get_stack_bounds");
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ASSERT_NOT_REACHED();
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}
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#elif __linux__
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pthread_attr_t attr = {};
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if (int rc = pthread_getattr_np(pthread_self(), &attr) != 0) {
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fprintf(stderr, "pthread_getattr_np: %s\n", strerror(-rc));
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ASSERT_NOT_REACHED();
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}
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if (int rc = pthread_attr_getstack(&attr, (void**)&m_base, &m_size) != 0) {
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fprintf(stderr, "pthread_attr_getstack: %s\n", strerror(-rc));
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ASSERT_NOT_REACHED();
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}
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pthread_attr_destroy(&attr);
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#elif __APPLE__
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m_base = (FlatPtr)pthread_get_stackaddr_np(pthread_self());
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pthread_attr_t attr = {};
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if (int rc = pthread_attr_getstacksize(&attr, &m_size) != 0) {
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fprintf(stderr, "pthread_attr_getstacksize: %s\n", strerror(-rc));
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ASSERT_NOT_REACHED();
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}
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pthread_attr_destroy(&attr);
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#else
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ASSERT_NOT_REACHED();
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#endif
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m_top = m_base + m_size;
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}
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}
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