Ananas.cpp
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//===--- Ananas.cpp - Ananas ToolChain Implementations ------*- 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
//
//===----------------------------------------------------------------------===//
#include "Ananas.h"
#include "InputInfo.h"
#include "CommonArgs.h"
#include "clang/Driver/Compilation.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/Options.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/Path.h"
using namespace clang::driver;
using namespace clang::driver::tools;
using namespace clang::driver::toolchains;
using namespace clang;
using namespace llvm::opt;
void ananas::Assembler::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
claimNoWarnArgs(Args);
ArgStringList CmdArgs;
Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler);
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
for (const auto &II : Inputs)
CmdArgs.push_back(II.getFilename());
const char *Exec = Args.MakeArgString(getToolChain().GetProgramPath("as"));
C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
}
void ananas::Linker::ConstructJob(Compilation &C, const JobAction &JA,
const InputInfo &Output,
const InputInfoList &Inputs,
const ArgList &Args,
const char *LinkingOutput) const {
const ToolChain &ToolChain = getToolChain();
const Driver &D = ToolChain.getDriver();
ArgStringList CmdArgs;
// Silence warning for "clang -g foo.o -o foo"
Args.ClaimAllArgs(options::OPT_g_Group);
// and "clang -emit-llvm foo.o -o foo"
Args.ClaimAllArgs(options::OPT_emit_llvm);
// and for "clang -w foo.o -o foo". Other warning options are already
// handled somewhere else.
Args.ClaimAllArgs(options::OPT_w);
if (!D.SysRoot.empty())
CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
if (Args.hasArg(options::OPT_static)) {
CmdArgs.push_back("-Bstatic");
} else {
if (Args.hasArg(options::OPT_rdynamic))
CmdArgs.push_back("-export-dynamic");
if (Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back("-Bshareable");
} else {
Args.AddAllArgs(CmdArgs, options::OPT_pie);
CmdArgs.push_back("-dynamic-linker");
CmdArgs.push_back("/lib/ld-ananas.so");
}
}
if (Output.isFilename()) {
CmdArgs.push_back("-o");
CmdArgs.push_back(Output.getFilename());
} else {
assert(Output.isNothing() && "Invalid output.");
}
if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
if (!Args.hasArg(options::OPT_shared)) {
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crt0.o")));
}
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crti.o")));
if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie)) {
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbeginS.o")));
} else {
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtbegin.o")));
}
}
Args.AddAllArgs(CmdArgs, options::OPT_L);
ToolChain.AddFilePathLibArgs(Args, CmdArgs);
Args.AddAllArgs(CmdArgs,
{options::OPT_T_Group, options::OPT_e, options::OPT_s,
options::OPT_t, options::OPT_Z_Flag, options::OPT_r});
if (D.isUsingLTO()) {
assert(!Inputs.empty() && "Must have at least one input.");
AddGoldPlugin(ToolChain, Args, CmdArgs, Output, Inputs[0],
D.getLTOMode() == LTOK_Thin);
}
AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA);
if (ToolChain.ShouldLinkCXXStdlib(Args))
ToolChain.AddCXXStdlibLibArgs(Args, CmdArgs);
if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs))
CmdArgs.push_back("-lc");
if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
if (Args.hasArg(options::OPT_shared) || Args.hasArg(options::OPT_pie))
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtendS.o")));
else
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtend.o")));
CmdArgs.push_back(Args.MakeArgString(ToolChain.GetFilePath("crtn.o")));
}
const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath());
C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs));
}
// Ananas - Ananas tool chain which can call as(1) and ld(1) directly.
Ananas::Ananas(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
: Generic_ELF(D, Triple, Args) {
getFilePaths().push_back(getDriver().SysRoot + "/usr/lib");
}
Tool *Ananas::buildAssembler() const {
return new tools::ananas::Assembler(*this);
}
Tool *Ananas::buildLinker() const { return new tools::ananas::Linker(*this); }