105bc091336fa31dd0fe62058ae273900d9f8c8ecChris Lattner//===-- CommandFlags.h - Command Line Flags Interface -----------*- C++ -*-===// 2cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// 3cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// The LLVM Compiler Infrastructure 4cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// 5cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// This file is distributed under the University of Illinois Open Source 6cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// License. See LICENSE.TXT for details. 7cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// 8cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem//===----------------------------------------------------------------------===// 9cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// 10cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// This file contains codegen-specific flags that are shared between different 11cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// command line tools. The tools "llc" and "opt" both use this file to prevent 12cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// flag duplication. 13cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem// 14cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem//===----------------------------------------------------------------------===// 15cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 16674be02d525d4e24bc6943ed9274958c580bcfbcJakub Staszak#ifndef LLVM_CODEGEN_COMMANDFLAGS_H 17674be02d525d4e24bc6943ed9274958c580bcfbcJakub Staszak#define LLVM_CODEGEN_COMMANDFLAGS_H 18cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 19dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines#include "llvm/MC/MCTargetOptionsCommandFlags.h" 20cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem#include "llvm/Support/CodeGen.h" 21255f89faee13dc491cb64fbeae3c763e7e2ea4e6Chandler Carruth#include "llvm/Support/CommandLine.h" 22cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem#include "llvm/Target/TargetMachine.h" 2336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines#include "llvm/Target/TargetOptions.h" 24cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem#include <string> 25cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemusing namespace llvm; 26cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 27cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<std::string> 28cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemMArch("march", cl::desc("Architecture to generate code for (see --version)")); 29cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 30cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<std::string> 31cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemMCPU("mcpu", 32cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Target a specific cpu type (-mcpu=help for details)"), 33cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::value_desc("cpu-name"), 34cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init("")); 35cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 36cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::list<std::string> 37cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemMAttrs("mattr", 38cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::CommaSeparated, 39cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Target specific attributes (-mattr=help for details)"), 40cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::value_desc("a1,+a2,-a3,...")); 41cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 42cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<Reloc::Model> 43cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemRelocModel("relocation-model", 44cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Choose relocation model"), 45cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(Reloc::Default), 46cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::values( 47cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(Reloc::Default, "default", 48cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Target default relocation model"), 49cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(Reloc::Static, "static", 50cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Non-relocatable code"), 51cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(Reloc::PIC_, "pic", 52cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Fully relocatable, position independent code"), 53cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic", 54cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Relocatable external references, non-relocatable code"), 55cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValEnd)); 56cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 5737ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinescl::opt<ThreadModel::Model> 5837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen HinesTMModel("thread-model", 5937ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::desc("Choose threading model"), 6037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::init(ThreadModel::POSIX), 6137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::values(clEnumValN(ThreadModel::POSIX, "posix", 6237ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines "POSIX thread model"), 6337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines clEnumValN(ThreadModel::Single, "single", 6437ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines "Single thread model"), 6537ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines clEnumValEnd)); 6637ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines 67cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<llvm::CodeModel::Model> 68cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemCMModel("code-model", 69cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Choose code model"), 70cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(CodeModel::Default), 71cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::values(clEnumValN(CodeModel::Default, "default", 72cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Target default code model"), 73cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(CodeModel::Small, "small", 74cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Small code model"), 75cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(CodeModel::Kernel, "kernel", 76cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Kernel code model"), 77cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(CodeModel::Medium, "medium", 78cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Medium code model"), 79cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(CodeModel::Large, "large", 80cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Large code model"), 81cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValEnd)); 82cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 83cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<TargetMachine::CodeGenFileType> 84cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemFileType("filetype", cl::init(TargetMachine::CGFT_AssemblyFile), 85cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Choose a file type (not all types are supported by all targets):"), 86cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::values( 87cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(TargetMachine::CGFT_AssemblyFile, "asm", 88cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Emit an assembly ('.s') file"), 89cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(TargetMachine::CGFT_ObjectFile, "obj", 90cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Emit a native object ('.o') file"), 91cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(TargetMachine::CGFT_Null, "null", 92cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Emit nothing, for performance testing"), 93cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValEnd)); 94cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 95cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 96cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemEnableFPMAD("enable-fp-mad", 97cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Enable less precise MAD instructions to be generated"), 98cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 99cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 100cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 101cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemDisableFPElim("disable-fp-elim", 102cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Disable frame pointer elimination optimization"), 103cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 104cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 105cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 106cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemEnableUnsafeFPMath("enable-unsafe-fp-math", 107cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Enable optimizations that may decrease FP precision"), 108cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 109cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 110cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 111cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemEnableNoInfsFPMath("enable-no-infs-fp-math", 112cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Enable FP math optimizations that assume no +-Infs"), 113cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 114cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 115cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 116cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemEnableNoNaNsFPMath("enable-no-nans-fp-math", 117cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Enable FP math optimizations that assume no NaNs"), 118cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 119cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 120cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 121cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemEnableHonorSignDependentRoundingFPMath("enable-sign-dependent-rounding-fp-math", 122cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::Hidden, 123cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Force codegen to assume rounding mode can change dynamically"), 124cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 125cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 126cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 127cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemGenerateSoftFloatCalls("soft-float", 128cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Generate software floating point library calls"), 129cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 130cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 131cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<llvm::FloatABI::ABIType> 132cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemFloatABIForCalls("float-abi", 133cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Choose float ABI type"), 134cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(FloatABI::Default), 135cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::values( 136cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(FloatABI::Default, "default", 137cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Target default float ABI type"), 138cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(FloatABI::Soft, "soft", 139cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Soft float ABI (implied by -soft-float)"), 140cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(FloatABI::Hard, "hard", 141cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Hard float ABI (uses FP registers)"), 142cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValEnd)); 143cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 144cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<llvm::FPOpFusion::FPOpFusionMode> 145cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemFuseFPOps("fp-contract", 146135fe6ac5f5b80ef68c19b3ec7bb0063e28f2babBenjamin Kramer cl::desc("Enable aggressive formation of fused FP ops"), 147cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(FPOpFusion::Standard), 148cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::values( 149cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(FPOpFusion::Fast, "fast", 150cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Fuse FP ops whenever profitable"), 151cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(FPOpFusion::Standard, "on", 152cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Only fuse 'blessed' FP ops."), 153cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValN(FPOpFusion::Strict, "off", 154cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem "Only fuse FP ops when the result won't be effected."), 155cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem clEnumValEnd)); 156cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 157cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 158cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemDontPlaceZerosInBSS("nozero-initialized-in-bss", 159cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Don't place zero-initialized symbols into bss section"), 160cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 161cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 162cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 163cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemEnableGuaranteedTailCallOpt("tailcallopt", 164cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Turn fastcc calls into tail calls by (potentially) changing ABI."), 165cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 166cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 167cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 168cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemDisableTailCalls("disable-tail-calls", 169cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Never emit tail calls"), 170cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 171cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 172cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<unsigned> 173cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemOverrideStackAlignment("stack-alignment", 174cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Override default stack alignment"), 175cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(0)); 176cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 177cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<std::string> 178cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemTrapFuncName("trap-func", cl::Hidden, 179cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Emit a call to trap function rather than a trap instruction"), 180cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init("")); 181cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 182cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 183cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav RotemEnablePIE("enable-pie", 184cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Assume the creation of a position independent executable."), 185cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 186cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 187cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<bool> 18837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen HinesUseCtors("use-ctors", 18937ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::desc("Use .ctors instead of .init_array."), 190cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init(false)); 191cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 192cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<std::string> StopAfter("stop-after", 193cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Stop compilation after a specific pass"), 194cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::value_desc("pass-name"), 195cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init("")); 196cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotemcl::opt<std::string> StartAfter("start-after", 197cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::desc("Resume compilation after a specific pass"), 198cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::value_desc("pass-name"), 199cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem cl::init("")); 200cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem 201dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hinescl::opt<bool> DataSections("data-sections", 202dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines cl::desc("Emit data into separate sections"), 203dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines cl::init(false)); 204dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines 205dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hinescl::opt<bool> 206dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen HinesFunctionSections("function-sections", 207dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines cl::desc("Emit functions into separate sections"), 208dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines cl::init(false)); 209dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines 210ebe69fe11e48d322045d5949c83283927a0d790bStephen Hinescl::opt<bool> UniqueSectionNames("unique-section-names", 211ebe69fe11e48d322045d5949c83283927a0d790bStephen Hines cl::desc("Give unique names to every section"), 212ebe69fe11e48d322045d5949c83283927a0d790bStephen Hines cl::init(true)); 213ebe69fe11e48d322045d5949c83283927a0d790bStephen Hines 214c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hinescl::opt<llvm::JumpTable::JumpTableType> 215c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen HinesJTableType("jump-table-type", 216c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines cl::desc("Choose the type of Jump-Instruction Table for jumptable."), 217c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines cl::init(JumpTable::Single), 218c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines cl::values( 219c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines clEnumValN(JumpTable::Single, "single", 220c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines "Create a single table for all jumptable functions"), 221c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines clEnumValN(JumpTable::Arity, "arity", 222c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines "Create one table per number of parameters."), 223c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines clEnumValN(JumpTable::Simplified, "simplified", 224c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines "Create one table per simplified function type."), 225c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines clEnumValN(JumpTable::Full, "full", 226c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines "Create one table per unique function type."), 227c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines clEnumValEnd)); 228c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines 22937ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinescl::opt<bool> 23037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen HinesFCFI("fcfi", 23137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::desc("Apply forward-edge control-flow integrity"), 23237ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::init(false)); 23337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines 23437ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinescl::opt<llvm::CFIntegrity> 23537ed9c199ca639565f6ce88105f9e39e898d82d0Stephen HinesCFIType("cfi-type", 23637ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::desc("Choose the type of Control-Flow Integrity check to add"), 23737ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::init(CFIntegrity::Sub), 23837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::values( 23937ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines clEnumValN(CFIntegrity::Sub, "sub", 24037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines "Subtract the pointer from the table base, then mask."), 24137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines clEnumValN(CFIntegrity::Ror, "ror", 24237ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines "Use rotate to check the offset from a table base."), 24337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines clEnumValN(CFIntegrity::Add, "add", 24437ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines "Mask out the high bits and add to an aligned base."), 24537ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines clEnumValEnd)); 24637ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines 24737ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinescl::opt<bool> 24837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen HinesCFIEnforcing("cfi-enforcing", 24937ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::desc("Enforce CFI or pass the violation to a function."), 25037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::init(false)); 25137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines 25237ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// Note that this option is linked to the cfi-enforcing option above: if 25337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// cfi-enforcing is set, then the cfi-func-name option is entirely ignored. If 25437ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// cfi-enforcing is false and no cfi-func-name is set, then a default function 25537ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// will be generated that ignores all CFI violations. The expected signature for 25637ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// functions called with CFI violations is 25737ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// 25837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// void (i8*, i8*) 25937ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// 26037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// The first pointer is a C string containing the name of the function in which 26137ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// the violation occurs, and the second pointer is the pointer that violated 26237ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines// CFI. 26337ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hinescl::opt<std::string> 26437ed9c199ca639565f6ce88105f9e39e898d82d0Stephen HinesCFIFuncName("cfi-func-name", cl::desc("The name of the CFI function to call"), 26537ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines cl::init("")); 26637ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines 26736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines// Common utility function tightly tied to the options listed here. Initializes 26836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines// a TargetOptions object with CodeGen flags and returns it. 26936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hinesstatic inline TargetOptions InitTargetOptionsFromCodeGenFlags() { 27036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines TargetOptions Options; 27136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.LessPreciseFPMADOption = EnableFPMAD; 27236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.NoFramePointerElim = DisableFPElim; 27336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.AllowFPOpFusion = FuseFPOps; 27436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.UnsafeFPMath = EnableUnsafeFPMath; 27536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.NoInfsFPMath = EnableNoInfsFPMath; 27636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.NoNaNsFPMath = EnableNoNaNsFPMath; 27736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.HonorSignDependentRoundingFPMathOption = 27836b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines EnableHonorSignDependentRoundingFPMath; 27936b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.UseSoftFloat = GenerateSoftFloatCalls; 28036b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines if (FloatABIForCalls != FloatABI::Default) 28136b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.FloatABIType = FloatABIForCalls; 28236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.NoZerosInBSS = DontPlaceZerosInBSS; 28336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.GuaranteedTailCallOpt = EnableGuaranteedTailCallOpt; 28436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.DisableTailCalls = DisableTailCalls; 28536b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.StackAlignmentOverride = OverrideStackAlignment; 28636b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.TrapFuncName = TrapFuncName; 28736b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines Options.PositionIndependentExecutable = EnablePIE; 28837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines Options.UseInitArray = !UseCtors; 289dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines Options.DataSections = DataSections; 290dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines Options.FunctionSections = FunctionSections; 291ebe69fe11e48d322045d5949c83283927a0d790bStephen Hines Options.UniqueSectionNames = UniqueSectionNames; 292dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines 293dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines Options.MCOptions = InitMCTargetOptionsFromFlags(); 294c6a4f5e819217e1e12c458aed8e7b122e23a3a58Stephen Hines Options.JTType = JTableType; 29537ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines Options.FCFI = FCFI; 29637ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines Options.CFIType = CFIType; 29737ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines Options.CFIEnforcing = CFIEnforcing; 29837ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines Options.CFIFuncName = CFIFuncName; 29937ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines 30037ed9c199ca639565f6ce88105f9e39e898d82d0Stephen Hines Options.ThreadModel = TMModel; 301dce4a407a24b04eebc6a376f8e62b41aaa7b071fStephen Hines 30236b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines return Options; 30336b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines} 30436b56886974eae4f9c5ebc96befd3e7bfe5de338Stephen Hines 305cbd9a19b5d6ff93efa82c467508ede78b8af3bacNadav Rotem#endif 306