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//===- Args.cpp -----------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "lld/Common/Args.h"
#include "lld/Common/ErrorHandler.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/Path.h"
using namespace llvm;
using namespace lld;
// TODO(sbc): Remove this once CGOptLevel can be set completely based on bitcode
// function metadata.
int lld::args::getCGOptLevel(int optLevelLTO) {
return std::clamp(optLevelLTO, 2, 3);
}
static int64_t getInteger(opt::InputArgList &args, unsigned key,
int64_t Default, unsigned base) {
auto *a = args.getLastArg(key);
if (!a)
return Default;
int64_t v;
StringRef s = a->getValue();
if (base == 16 && (s.starts_with("0x") || s.starts_with("0X")))
s = s.drop_front(2);
if (to_integer(s, v, base))
return v;
StringRef spelling = args.getArgString(a->getIndex());
error(spelling + ": number expected, but got '" + a->getValue() + "'");
return 0;
}
int64_t lld::args::getInteger(opt::InputArgList &args, unsigned key,
int64_t Default) {
return ::getInteger(args, key, Default, 10);
}
int64_t lld::args::getHex(opt::InputArgList &args, unsigned key,
int64_t Default) {
return ::getInteger(args, key, Default, 16);
}
SmallVector<StringRef, 0> lld::args::getStrings(opt::InputArgList &args,
int id) {
SmallVector<StringRef, 0> v;
for (auto *arg : args.filtered(id))
v.push_back(arg->getValue());
return v;
}
uint64_t lld::args::getZOptionValue(opt::InputArgList &args, int id,
StringRef key, uint64_t Default) {
for (auto *arg : args.filtered_reverse(id)) {
std::pair<StringRef, StringRef> kv = StringRef(arg->getValue()).split('=');
if (kv.first == key) {
uint64_t result = Default;
if (!to_integer(kv.second, result))
error("invalid " + key + ": " + kv.second);
return result;
}
}
return Default;
}
std::vector<StringRef> lld::args::getLines(MemoryBufferRef mb) {
SmallVector<StringRef, 0> arr;
mb.getBuffer().split(arr, '\n');
std::vector<StringRef> ret;
for (StringRef s : arr) {
s = s.trim();
if (!s.empty() && s[0] != '#')
ret.push_back(s);
}
return ret;
}
StringRef lld::args::getFilenameWithoutExe(StringRef path) {
if (path.ends_with_insensitive(".exe"))
return sys::path::stem(path);
return sys::path::filename(path);
}
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