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Add gcc's -no-canonical-prefixes option to clang. 

llvm-svn: 90577
This commit is contained in:
Rafael Espindola 2009-12-04 19:31:58 +00:00
parent 875912ac13
commit 73d4637545
3 changed files with 19 additions and 3 deletions
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2
clang/include/clang/Driver/Options.td
View File

@ -375,6 +375,8 @@ def multiply__defined : Separate<"-multiply_defined">;
def mwarn_nonportable_cfstrings : Flag<"-mwarn-nonportable-cfstrings">, Group<m_Group>;
def m_Separate : Separate<"-m">, Group<m_Group>;
def m_Joined : Joined<"-m">, Group<m_Group>;
def no_canonical_prefixes : Flag<"-no-canonical-prefixes">, Flags<[DriverOption]>,
HelpText<"Do not resolve symbolic links, turn relative paths into absolute ones, or do anything else to identify the executable">;
def no_cpp_precomp : Flag<"-no-cpp-precomp">;
def no_integrated_cpp : Flag<"-no-integrated-cpp">, Flags<[DriverOption]>;
def no__dead__strip__inits__and__terms : Flag<"-no_dead_strip_inits_and_terms">;

3
clang/lib/Driver/Tools.cpp
View File

@ -1104,6 +1104,9 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
// care to warn the user about.
Args.ClaimAllArgs(options::OPT_clang_ignored_f_Group);
Args.ClaimAllArgs(options::OPT_clang_ignored_m_Group);
// -no-canonical-prefixes is used very early in main.
Args.ClaimAllArgs(options::OPT_no_canonical_prefixes);
}
void gcc::Common::ConstructJob(Compilation &C, const JobAction &JA,

17
clang/tools/driver/driver.cpp
View File

@ -60,7 +60,10 @@ void DriverDiagnosticPrinter::HandleDiagnostic(Diagnostic::Level Level,
OS << '\n';
}
llvm::sys::Path GetExecutablePath(const char *Argv0) {
llvm::sys::Path GetExecutablePath(const char *Argv0, bool CanonicalPrefixes) {
if (!CanonicalPrefixes)
return llvm::sys::Path(Argv0);
// This just needs to be some symbol in the binary; C++ doesn't
// allow taking the address of ::main however.
void *P = (void*) (intptr_t) GetExecutablePath;
@ -190,7 +193,16 @@ int main(int argc, const char **argv) {
return cc1_main(argv+2, argv+argc, argv[0],
(void*) (intptr_t) GetExecutablePath);
llvm::sys::Path Path = GetExecutablePath(argv[0]);
bool CanonicalPrefixes = true;
for (int i = 1; i < argc; ++i) {
if (llvm::StringRef(argv[i]) == "-no-canonical-prefixes") {
CanonicalPrefixes = false;
break;
}
}
llvm::sys::Path Path = GetExecutablePath(argv[0], CanonicalPrefixes);
DriverDiagnosticPrinter DiagClient(Path.getBasename(), llvm::errs());
Diagnostic Diags(&DiagClient);
@ -264,4 +276,3 @@ int main(int argc, const char **argv) {
return Res;
}