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-rw-r--r--clang/lib/Frontend/CompilerInvocation.cpp19
1 files changed, 16 insertions, 3 deletions
diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index d5ad3df35db..4b6b17eb7e8 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -1419,7 +1419,8 @@ std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
return P.str();
}
-static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
+static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
+ const std::string &WorkingDir) {
using namespace options;
Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
Opts.Verbose = Args.hasArg(OPT_v);
@@ -1429,7 +1430,18 @@ static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) {
if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
- Opts.ModuleCachePath = Args.getLastArgValue(OPT_fmodules_cache_path);
+
+ // Canonicalize -fmodules-cache-path before storing it.
+ SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
+ if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
+ if (WorkingDir.empty())
+ llvm::sys::fs::make_absolute(P);
+ else
+ llvm::sys::fs::make_absolute(WorkingDir, P);
+ }
+ llvm::sys::path::remove_dots(P);
+ Opts.ModuleCachePath = P.str();
+
Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
for (const Arg *A : Args.filtered(OPT_fprebuilt_module_path))
Opts.AddPrebuiltModulePath(A->getValue());
@@ -2496,7 +2508,8 @@ bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
Res.getTargetOpts());
- ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args);
+ ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
+ Res.getFileSystemOpts().WorkingDir);
if (DashX == IK_AST || DashX == IK_LLVM_IR) {
// ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
// PassManager in BackendUtil.cpp. They need to be initializd no matter
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