12 #include "clang/Config/config.h" 18 #include "llvm/Option/ArgList.h" 19 #include "llvm/Support/Path.h" 24 using namespace clang;
31 const char *LinkingOutput)
const {
36 ArgStringList CmdArgs;
39 Args.ClaimAllArgs(options::OPT_g_Group);
41 Args.ClaimAllArgs(options::OPT_emit_llvm);
44 Args.ClaimAllArgs(options::OPT_w);
46 const char *Exec = Args.MakeArgString(ToolChain.
GetLinkerPath());
47 if (llvm::sys::path::filename(Exec).equals_lower(
"ld.lld") ||
48 llvm::sys::path::stem(Exec).equals_lower(
"ld.lld")) {
49 CmdArgs.push_back(
"-z");
50 CmdArgs.push_back(
"rodynamic");
54 CmdArgs.push_back(Args.MakeArgString(
"--sysroot=" + D.
SysRoot));
56 if (!Args.hasArg(options::OPT_shared) && !Args.hasArg(options::OPT_r))
57 CmdArgs.push_back(
"-pie");
59 if (Args.hasArg(options::OPT_rdynamic))
60 CmdArgs.push_back(
"-export-dynamic");
62 if (Args.hasArg(options::OPT_s))
63 CmdArgs.push_back(
"-s");
65 if (Args.hasArg(options::OPT_r)) {
66 CmdArgs.push_back(
"-r");
68 CmdArgs.push_back(
"--build-id");
69 CmdArgs.push_back(
"--hash-style=gnu");
72 CmdArgs.push_back(
"--eh-frame-hdr");
74 if (Args.hasArg(options::OPT_static))
75 CmdArgs.push_back(
"-Bstatic");
76 else if (Args.hasArg(options::OPT_shared))
77 CmdArgs.push_back(
"-shared");
81 if (!Args.hasArg(options::OPT_shared)) {
86 CmdArgs.push_back(
"-dynamic-linker");
87 CmdArgs.push_back(Args.MakeArgString(Dyld));
90 CmdArgs.push_back(
"-o");
93 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
94 if (!Args.hasArg(options::OPT_shared)) {
95 CmdArgs.push_back(Args.MakeArgString(ToolChain.
GetFilePath(
"Scrt1.o")));
99 Args.AddAllArgs(CmdArgs, options::OPT_L);
100 Args.AddAllArgs(CmdArgs, options::OPT_u);
107 assert(!Inputs.empty() &&
"Must have at least one input.");
117 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
118 if (Args.hasArg(options::OPT_static))
119 CmdArgs.push_back(
"-Bdynamic");
123 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
124 !Args.hasArg(options::OPT_static);
125 CmdArgs.push_back(
"--push-state");
126 CmdArgs.push_back(
"--as-needed");
127 if (OnlyLibstdcxxStatic)
128 CmdArgs.push_back(
"-Bstatic");
130 if (OnlyLibstdcxxStatic)
131 CmdArgs.push_back(
"-Bdynamic");
132 CmdArgs.push_back(
"-lm");
133 CmdArgs.push_back(
"--pop-state");
137 if (NeedsSanitizerDeps)
145 if (Args.hasArg(options::OPT_pthread) ||
146 Args.hasArg(options::OPT_pthreads))
147 CmdArgs.push_back(
"-lpthread");
149 if (Args.hasArg(options::OPT_fsplit_stack))
150 CmdArgs.push_back(
"--wrap=pthread_create");
152 CmdArgs.push_back(
"-lc");
155 C.
addCommand(llvm::make_unique<Command>(JA, *
this, Exec, CmdArgs, Inputs));
169 llvm::sys::path::append(P,
"lib");
177 return (Triple.getArchName() +
"-" + Triple.getOSName()).
str();
185 const ArgList &Args)
const {
186 if (Arg *A = Args.getLastArg(clang::driver::options::OPT_rtlib_EQ)) {
187 StringRef
Value = A->getValue();
188 if (Value !=
"compiler-rt")
190 << A->getAsString(Args);
198 if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
199 StringRef
Value = A->getValue();
200 if (Value !=
"libc++")
202 << A->getAsString(Args);
209 ArgStringList &CC1Args,
211 if (DriverArgs.hasFlag(options::OPT_fuse_init_array,
212 options::OPT_fno_use_init_array,
true))
213 CC1Args.push_back(
"-fuse-init-array");
217 ArgStringList &CC1Args)
const {
220 if (DriverArgs.hasArg(options::OPT_nostdinc))
223 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
225 llvm::sys::path::append(P,
"include");
229 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
233 StringRef CIncludeDirs(C_INCLUDE_DIRS);
234 if (CIncludeDirs !=
"") {
236 CIncludeDirs.split(dirs,
":");
237 for (StringRef dir : dirs) {
239 llvm::sys::path::is_absolute(dir) ? StringRef(D.
SysRoot) :
"";
247 llvm::sys::path::append(P,
"include");
253 ArgStringList &CC1Args)
const {
254 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
255 DriverArgs.hasArg(options::OPT_nostdincxx))
261 llvm::sys::path::append(P,
"include",
"c++",
"v1");
267 llvm_unreachable(
"invalid stdlib name");
272 ArgStringList &CmdArgs)
const {
275 CmdArgs.push_back(
"-lc++");
279 llvm_unreachable(
"invalid stdlib name");
285 Res |= SanitizerKind::Address;
286 Res |= SanitizerKind::Fuzzer;
287 Res |= SanitizerKind::FuzzerNoLink;
288 Res |= SanitizerKind::SafeStack;
289 Res |= SanitizerKind::Scudo;
294 return SanitizerKind::SafeStack;
bool isUsingLTO() const
Returns true if we are performing any kind of LTO.
std::string DyldPrefix
Dynamic loader prefix, if present.
LTOKind getLTOMode() const
Get the specific kind of LTO being performed.
DiagnosticBuilder Diag(unsigned DiagID) const
std::string Dir
The path the driver executable was in, as invoked from the command line.
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
void addCommand(std::unique_ptr< Command > C)
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
Dataflow Directional Tag Classes.
std::string SysRoot
sysroot, if present
Compilation - A set of tasks to perform for a single driver invocation.
bool needsSharedRt() const
std::string ResourceDir
The path to the compiler resource directory.