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65985348c5
On Windows, this improves clean cmake configuration time on my workstation from 1m58s to 1m32s, which is pretty significant. There's probably more that can be done here, but this is the low hanging fruit. Eric volunteered to regenerate ./configure for me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187209 91177308-0d34-0410-b5e6-96231b3b80d8
76 lines
2.1 KiB
C++
76 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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#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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