1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-24 11:42:57 +01:00
llvm-mirror/lib/Support/Unix/Host.inc
Chandler Carruth 0b619fcc8e [cleanup] Re-sort all the #include lines in LLVM using
utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.

llvm-svn: 225974
2015-01-14 11:23:27 +00:00

64 lines
1.9 KiB
C++

//===- llvm/Support/Unix/Host.inc -------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the UNIX Host support.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only generic UNIX code that
//=== is guaranteed to work on *all* UNIX variants.
//===----------------------------------------------------------------------===//
#include "Unix.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Config/config.h"
#include <cctype>
#include <string>
#include <sys/utsname.h>
using namespace llvm;
static std::string getOSVersion() {
struct utsname info;
if (uname(&info))
return "";
return info.release;
}
std::string sys::getDefaultTargetTriple() {
StringRef TargetTripleString(LLVM_DEFAULT_TARGET_TRIPLE);
std::pair<StringRef, StringRef> ArchSplit = TargetTripleString.split('-');
// Normalize the arch, since the target triple may not actually match the
// target.
std::string Arch = ArchSplit.first;
std::string Triple(Arch);
Triple += '-';
Triple += ArchSplit.second;
// Force i<N>86 to i386.
if (Triple[0] == 'i' && isdigit(Triple[1]) &&
Triple[2] == '8' && Triple[3] == '6')
Triple[1] = '3';
// On darwin, we want to update the version to match that of the
// target.
std::string::size_type DarwinDashIdx = Triple.find("-darwin");
if (DarwinDashIdx != std::string::npos) {
Triple.resize(DarwinDashIdx + strlen("-darwin"));
Triple += getOSVersion();
}
return Triple::normalize(Triple);
}