| //===--- AIX.cpp - AIX 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 "AIX.h" |
| #include "Arch/PPC.h" |
| #include "CommonArgs.h" |
| #include "clang/Driver/Compilation.h" |
| #include "clang/Driver/Options.h" |
| #include "clang/Driver/SanitizerArgs.h" |
| #include "llvm/Option/ArgList.h" |
| |
| using AIX = clang::driver::toolchains::AIX; |
| using namespace clang::driver; |
| using namespace clang::driver::tools; |
| |
| using namespace llvm::opt; |
| |
| void aix::Assembler::ConstructJob(Compilation &C, const JobAction &JA, |
| const InputInfo &Output, |
| const InputInfoList &Inputs, |
| const ArgList &Args, |
| const char *LinkingOutput) const { |
| ArgStringList CmdArgs; |
| |
| const bool IsArch32Bit = getToolChain().getTriple().isArch32Bit(); |
| const bool IsArch64Bit = getToolChain().getTriple().isArch64Bit(); |
| // Only support 32 and 64 bit. |
| if (!IsArch32Bit && !IsArch64Bit) |
| llvm_unreachable("Unsupported bit width value."); |
| |
| // Specify the mode in which the as(1) command operates. |
| if (IsArch32Bit) { |
| CmdArgs.push_back("-a32"); |
| } else { |
| // Must be 64-bit, otherwise asserted already. |
| CmdArgs.push_back("-a64"); |
| } |
| |
| // Accept an undefined symbol as an extern so that an error message is not |
| // displayed. Otherwise, undefined symbols are flagged with error messages. |
| // FIXME: This should be removed when the assembly generation from the |
| // compiler is able to write externs properly. |
| CmdArgs.push_back("-u"); |
| |
| // Accept any mixture of instructions. |
| // On Power for AIX and Linux, this behaviour matches that of GCC for both the |
| // user-provided assembler source case and the compiler-produced assembler |
| // source case. Yet XL with user-provided assembler source would not add this. |
| CmdArgs.push_back("-many"); |
| |
| Args.AddAllArgValues(CmdArgs, options::OPT_Wa_COMMA, options::OPT_Xassembler); |
| |
| // Specify assembler output file. |
| assert((Output.isFilename() || Output.isNothing()) && "Invalid output."); |
| if (Output.isFilename()) { |
| CmdArgs.push_back("-o"); |
| CmdArgs.push_back(Output.getFilename()); |
| } |
| |
| // Specify assembler input file. |
| // The system assembler on AIX takes exactly one input file. The driver is |
| // expected to invoke as(1) separately for each assembler source input file. |
| if (Inputs.size() != 1) |
| llvm_unreachable("Invalid number of input files."); |
| const InputInfo &II = Inputs[0]; |
| assert((II.isFilename() || II.isNothing()) && "Invalid input."); |
| if (II.isFilename()) |
| 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 aix::Linker::ConstructJob(Compilation &C, const JobAction &JA, |
| const InputInfo &Output, |
| const InputInfoList &Inputs, const ArgList &Args, |
| const char *LinkingOutput) const { |
| const AIX &ToolChain = static_cast<const AIX &>(getToolChain()); |
| ArgStringList CmdArgs; |
| |
| const bool IsArch32Bit = ToolChain.getTriple().isArch32Bit(); |
| const bool IsArch64Bit = ToolChain.getTriple().isArch64Bit(); |
| // Only support 32 and 64 bit. |
| if (!(IsArch32Bit || IsArch64Bit)) |
| llvm_unreachable("Unsupported bit width value."); |
| |
| // Force static linking when "-static" is present. |
| if (Args.hasArg(options::OPT_static)) |
| CmdArgs.push_back("-bnso"); |
| |
| // Specify linker output file. |
| assert((Output.isFilename() || Output.isNothing()) && "Invalid output."); |
| if (Output.isFilename()) { |
| CmdArgs.push_back("-o"); |
| CmdArgs.push_back(Output.getFilename()); |
| } |
| |
| // Set linking mode (i.e., 32/64-bit) and the address of |
| // text and data sections based on arch bit width. |
| if (IsArch32Bit) { |
| CmdArgs.push_back("-b32"); |
| CmdArgs.push_back("-bpT:0x10000000"); |
| CmdArgs.push_back("-bpD:0x20000000"); |
| } else { |
| // Must be 64-bit, otherwise asserted already. |
| CmdArgs.push_back("-b64"); |
| CmdArgs.push_back("-bpT:0x100000000"); |
| CmdArgs.push_back("-bpD:0x110000000"); |
| } |
| |
| auto getCrt0Basename = [&Args, IsArch32Bit] { |
| // Enable gprofiling when "-pg" is specified. |
| if (Args.hasArg(options::OPT_pg)) |
| return IsArch32Bit ? "gcrt0.o" : "gcrt0_64.o"; |
| // Enable profiling when "-p" is specified. |
| else if (Args.hasArg(options::OPT_p)) |
| return IsArch32Bit ? "mcrt0.o" : "mcrt0_64.o"; |
| else |
| return IsArch32Bit ? "crt0.o" : "crt0_64.o"; |
| }; |
| |
| if (!Args.hasArg(options::OPT_nostdlib)) { |
| CmdArgs.push_back( |
| Args.MakeArgString(ToolChain.GetFilePath(getCrt0Basename()))); |
| } |
| |
| // Specify linker input file(s). |
| AddLinkerInputs(ToolChain, Inputs, Args, CmdArgs, JA); |
| |
| // Add directory to library search path. |
| Args.AddAllArgs(CmdArgs, options::OPT_L); |
| ToolChain.AddFilePathLibArgs(Args, CmdArgs); |
| |
| if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) { |
| // Support POSIX threads if "-pthreads" or "-pthread" is present. |
| if (Args.hasArg(options::OPT_pthreads, options::OPT_pthread)) |
| CmdArgs.push_back("-lpthreads"); |
| |
| CmdArgs.push_back("-lc"); |
| } |
| |
| const char *Exec = Args.MakeArgString(ToolChain.GetLinkerPath()); |
| C.addCommand(std::make_unique<Command>(JA, *this, Exec, CmdArgs, Inputs)); |
| } |
| |
| /// AIX - AIX tool chain which can call as(1) and ld(1) directly. |
| AIX::AIX(const Driver &D, const llvm::Triple &Triple, const ArgList &Args) |
| : ToolChain(D, Triple, Args) { |
| getFilePaths().push_back(getDriver().SysRoot + "/usr/lib"); |
| } |
| |
| auto AIX::buildAssembler() const -> Tool * { return new aix::Assembler(*this); } |
| |
| auto AIX::buildLinker() const -> Tool * { return new aix::Linker(*this); } |