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f785676f2a
all of the features in the current working draft of the upcoming C++ standard, provisionally named C++1y. The code generator's performance is greatly increased, and the loop auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The PowerPC backend has made several major improvements to code generation quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ backends have all seen major feature work. Release notes for llvm and clang can be found here: <http://llvm.org/releases/3.4/docs/ReleaseNotes.html> <http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html> MFC after: 1 month
79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
//===- llvm/Support/Unix/Unix.h - Common Unix Include File -------*- C++ -*-===//
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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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// This file defines things specific to Unix implementations.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SYSTEM_UNIX_UNIX_H
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#define LLVM_SYSTEM_UNIX_UNIX_H
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//===----------------------------------------------------------------------===//
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//=== WARNING: Implementation here must contain only generic UNIX code that
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//=== is guaranteed to work on all UNIX variants.
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//===----------------------------------------------------------------------===//
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#include "llvm/Config/config.h" // Get autoconf configuration settings
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#include "llvm/Support/Errno.h"
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#include <algorithm>
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#include <assert.h>
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#include <cerrno>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <string>
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#include <sys/types.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_PARAM_H
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#include <sys/param.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#endif
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#include <time.h>
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#ifdef HAVE_SYS_WAIT_H
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# include <sys/wait.h>
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#endif
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#ifdef HAVE_DLFCN_H
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# include <dlfcn.h>
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#endif
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#ifndef WEXITSTATUS
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# define WEXITSTATUS(stat_val) ((unsigned)(stat_val) >> 8)
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#endif
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#ifndef WIFEXITED
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# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
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#endif
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/// This function builds an error message into \p ErrMsg using the \p prefix
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/// string and the Unix error number given by \p errnum. If errnum is -1, the
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/// default then the value of errno is used.
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/// @brief Make an error message
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///
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/// If the error number can be converted to a string, it will be
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/// separated from prefix by ": ".
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static inline bool MakeErrMsg(
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std::string* ErrMsg, const std::string& prefix, int errnum = -1) {
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if (!ErrMsg)
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return true;
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if (errnum == -1)
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errnum = errno;
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*ErrMsg = prefix + ": " + llvm::sys::StrError(errnum);
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return true;
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}
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#endif
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