ce80522394
ExecutorProcessInfo provides information about the process in which the ORC runtime is running.
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
//===- ExecutorProcessInfo.cpp --------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Contains the implementation of APIs in the orc-rt/ExecutorProcessInfo.h
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// header.
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//
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//===----------------------------------------------------------------------===//
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#include "orc-rt/ExecutorProcessInfo.h"
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#include <cstring>
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#include <unistd.h>
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namespace orc_rt {
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ExecutorProcessInfo::ExecutorProcessInfo(std::string Triple,
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size_t PageSize) noexcept
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: Triple(std::move(Triple)), PageSize(PageSize) {}
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/// Create an ExecutorProcessInfo, auto-detecting property values.
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Expected<ExecutorProcessInfo> ExecutorProcessInfo::Detect() noexcept {
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auto Triple = detectTargetTriple();
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auto PageSize = detectPageSize();
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if (!PageSize)
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return PageSize.takeError();
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return ExecutorProcessInfo(std::move(Triple), std::move(*PageSize));
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}
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std::string ExecutorProcessInfo::detectTargetTriple() noexcept {
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std::string Triple;
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// Arch
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#if defined(__x86_64__) || defined(_M_X64)
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Triple += "x86_64";
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#elif defined(__aarch64__) || defined(_M_ARM64)
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Triple += "aarch64";
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#else
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#error "Unsupported architecture"
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#endif
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// Vendor
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#if defined(__APPLE__)
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Triple += "-apple";
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#else
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Triple += "-unknown";
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#endif
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// OS
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#if defined(__APPLE__)
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Triple += "-darwin";
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#elif defined(__linux__)
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Triple += "-linux";
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#else
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#error "Unsupported OS"
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#endif
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return Triple;
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}
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Expected<size_t> ExecutorProcessInfo::detectPageSize() noexcept {
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long PageSize = sysconf(_SC_PAGESIZE);
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if (PageSize == -1)
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return make_error<StringError>(strerror(errno));
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return static_cast<size_t>(PageSize);
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}
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} // namespace orc_rt
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