mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-29 13:29:28 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143502 91177308-0d34-0410-b5e6-96231b3b80d8
64 lines
1.9 KiB
C++
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 "llvm/Config/config.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
#include "Unix.h"
|
|
#include <sys/utsname.h>
|
|
#include <cctype>
|
|
#include <string>
|
|
#include <cstdlib> // ::getenv
|
|
|
|
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;
|
|
}
|