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LibDriver: Fix output path inference.

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The inferred output file name is based on the first input file, not the
first one with extension .obj. The output file was also being written to
the wrong directory; it needs to be written to whichever directory on the
libpath it was found in. This change fixes both issues.

llvm-svn: 241710
This commit is contained in:
Peter Collingbourne 2015-07-08 19:00:46 +00:00
parent 15a02a12cd
commit fe08b5f6b2
2 changed files with 22 additions and 11 deletions
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18
lib/LibDriver/LibDriver.cpp
View File

@ -56,17 +56,13 @@ public:
}
static std::string getOutputPath(llvm::opt::InputArgList *Args) {
static std::string getOutputPath(llvm::opt::InputArgList *Args,
const llvm::NewArchiveIterator &FirstMember) {
if (auto *Arg = Args->getLastArg(OPT_out))
return Arg->getValue();
for (auto *Arg : Args->filtered(OPT_INPUT)) {
if (!StringRef(Arg->getValue()).endswith_lower(".obj"))
continue;
SmallString<128> Val = StringRef(Arg->getValue());
llvm::sys::path::replace_extension(Val, ".lib");
return Val.str();
}
llvm_unreachable("internal error");
SmallString<128> Val = FirstMember.getNew();
llvm::sys::path::replace_extension(Val, ".lib");
return Val.str();
}
static std::vector<StringRef> getSearchPaths(llvm::opt::InputArgList *Args,
@ -143,8 +139,8 @@ int llvm::libDriverMain(llvm::ArrayRef<const char*> ArgsArr) {
llvm::sys::path::filename(Arg->getValue()));
}
std::pair<StringRef, std::error_code> Result =
llvm::writeArchive(getOutputPath(&Args), Members, /*WriteSymtab=*/true);
std::pair<StringRef, std::error_code> Result = llvm::writeArchive(
getOutputPath(&Args, Members[0]), Members, /*WriteSymtab=*/true);
if (Result.second) {
if (Result.first.empty())
Result.first = ArgsArr[0];

15
test/LibDriver/infer-output-path.test Normal file
View File

@ -0,0 +1,15 @@
RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %T/a.obj %S/Inputs/a.s
RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %T/b.o %S/Inputs/b.s
RUN: llvm-mc -triple=x86_64-pc-windows-msvc -filetype=obj -o %T/c %S/Inputs/b.s
RUN: rm -f %T/a.lib
RUN: llvm-lib %T/a.obj
RUN: test -e %T/a.lib
RUN: rm -f %T/b.lib
RUN: llvm-lib /libpath:%T b.o
RUN: test -e %T/b.lib
RUN: rm -f %T/c.lib
RUN: llvm-lib /libpath:%T c
RUN: test -e %T/c.lib