mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-20 03:23:01 +02:00
87d13166c7
This is how it should've been and brings it more in line with std::string_view. There should be no functional change here. This is mostly mechanical from a custom clang-tidy check, with a lot of manual fixups. It uncovers a lot of minor inefficiencies. This doesn't actually modify StringRef yet, I'll do that in a follow-up.
85 lines
2.9 KiB
C++
85 lines
2.9 KiB
C++
//===- llvm/Support/Unix/Host.inc -------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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;
|
|
}
|
|
|
|
static std::string updateTripleOSVersion(std::string TargetTripleString) {
|
|
// On darwin, we want to update the version to match that of the target.
|
|
std::string::size_type DarwinDashIdx = TargetTripleString.find("-darwin");
|
|
if (DarwinDashIdx != std::string::npos) {
|
|
TargetTripleString.resize(DarwinDashIdx + strlen("-darwin"));
|
|
TargetTripleString += getOSVersion();
|
|
return TargetTripleString;
|
|
}
|
|
std::string::size_type MacOSDashIdx = TargetTripleString.find("-macos");
|
|
if (MacOSDashIdx != std::string::npos) {
|
|
TargetTripleString.resize(MacOSDashIdx);
|
|
// Reset the OS to darwin as the OS version from `uname` doesn't use the
|
|
// macOS version scheme.
|
|
TargetTripleString += "-darwin";
|
|
TargetTripleString += getOSVersion();
|
|
}
|
|
// On AIX, the AIX version and release should be that of the current host
|
|
// unless if the version has already been specified.
|
|
if (Triple(LLVM_HOST_TRIPLE).getOS() == Triple::AIX) {
|
|
Triple TT(TargetTripleString);
|
|
if (TT.getOS() == Triple::AIX && !TT.getOSMajorVersion()) {
|
|
struct utsname name;
|
|
if (uname(&name) != -1) {
|
|
std::string NewOSName = std::string(Triple::getOSTypeName(Triple::AIX));
|
|
NewOSName += name.version;
|
|
NewOSName += '.';
|
|
NewOSName += name.release;
|
|
NewOSName += ".0.0";
|
|
TT.setOSName(NewOSName);
|
|
return TT.str();
|
|
}
|
|
}
|
|
}
|
|
return TargetTripleString;
|
|
}
|
|
|
|
std::string sys::getDefaultTargetTriple() {
|
|
std::string TargetTripleString =
|
|
updateTripleOSVersion(LLVM_DEFAULT_TARGET_TRIPLE);
|
|
|
|
// Override the default target with an environment variable named by
|
|
// LLVM_TARGET_TRIPLE_ENV.
|
|
#if defined(LLVM_TARGET_TRIPLE_ENV)
|
|
if (const char *EnvTriple = std::getenv(LLVM_TARGET_TRIPLE_ENV))
|
|
TargetTripleString = EnvTriple;
|
|
#endif
|
|
|
|
return TargetTripleString;
|
|
}
|