15 #include "llvm/ADT/StringExtras.h"
16 #include "llvm/ADT/StringSwitch.h"
17 #include "llvm/Support/FileSystem.h"
18 #include "llvm/Support/Path.h"
19 #include "llvm/Support/ScopedPrinter.h"
20 #include "llvm/Support/SpecialCaseList.h"
22 using namespace clang;
23 using namespace clang::driver;
24 using namespace llvm::opt;
27 constexpr
char XRayInstrumentOption[] =
"-fxray-instrument";
28 constexpr
char XRayInstructionThresholdOption[] =
29 "-fxray-instruction-threshold=";
30 constexpr
char XRayAlwaysInstrumentOption[] =
"-fxray-always-instrument=";
31 constexpr
char XRayNeverInstrumentOption[] =
"-fxray-never-instrument=";
36 const llvm::Triple &Triple = TC.
getTriple();
37 if (Args.hasFlag(options::OPT_fxray_instrument,
38 options::OPT_fnoxray_instrument,
false)) {
39 if (Triple.getOS() == llvm::Triple::Linux)
40 switch (Triple.getArch()) {
41 case llvm::Triple::x86_64:
42 case llvm::Triple::arm:
43 case llvm::Triple::aarch64:
44 case llvm::Triple::ppc64le:
45 case llvm::Triple::mips:
46 case llvm::Triple::mipsel:
47 case llvm::Triple::mips64:
48 case llvm::Triple::mips64el:
51 D.
Diag(diag::err_drv_clang_unsupported)
52 << (std::string(XRayInstrumentOption) +
" on " + Triple.str());
55 D.
Diag(diag::err_drv_clang_unsupported)
56 << (std::string(XRayInstrumentOption) +
" on non-Linux target OS");
57 XRayInstrument =
true;
59 Args.getLastArg(options::OPT_fxray_instruction_threshold_,
60 options::OPT_fxray_instruction_threshold_EQ)) {
61 StringRef
S = A->getValue();
62 if (S.getAsInteger(0, InstructionThreshold) || InstructionThreshold < 0)
63 D.
Diag(clang::diag::err_drv_invalid_value) << A->getAsString(Args) <<
S;
69 Args.getAllArgValues(options::OPT_fxray_always_instrument)) {
70 if (llvm::sys::fs::exists(
Filename)) {
71 AlwaysInstrumentFiles.push_back(
Filename);
78 Args.getAllArgValues(options::OPT_fxray_never_instrument)) {
79 if (llvm::sys::fs::exists(
Filename)) {
80 NeverInstrumentFiles.push_back(
Filename);
89 ArgStringList &CmdArgs,
types::ID InputType)
const {
93 CmdArgs.push_back(XRayInstrumentOption);
94 CmdArgs.push_back(Args.MakeArgString(Twine(XRayInstructionThresholdOption) +
95 Twine(InstructionThreshold)));
97 for (
const auto &Always : AlwaysInstrumentFiles) {
99 AlwaysInstrumentOpt += Always;
100 CmdArgs.push_back(Args.MakeArgString(AlwaysInstrumentOpt));
103 for (
const auto &Never : NeverInstrumentFiles) {
105 NeverInstrumentOpt += Never;
106 CmdArgs.push_back(Args.MakeArgString(NeverInstrumentOpt));
109 for (
const auto &Dep : ExtraDeps) {
112 CmdArgs.push_back(Args.MakeArgString(ExtraDepOpt));
DiagnosticBuilder Diag(unsigned DiagID) const
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
void addArgs(const ToolChain &TC, const llvm::opt::ArgList &Args, llvm::opt::ArgStringList &CmdArgs, types::ID InputType) const
XRayArgs(const ToolChain &TC, const llvm::opt::ArgList &Args)
Parses the XRay arguments from an argument list.