Summary:
For -thinlto-object-suffix-replace=old\;new, in
tools/gold/gold-plugin.cpp, the thinlto object filename is Path minus
optional old suffix.
static std::string getThinLTOObjectFileName(StringRef Path, StringRef OldSuffix,
StringRef NewSuffix) {
if (OldSuffix.empty() && NewSuffix.empty())
return Path;
StringRef NewPath = Path;
NewPath.consume_back(OldSuffix);
std::string NewNewPath = NewPath;
NewNewPath += NewSuffix;
return NewNewPath;
}
Currently lld will error that the path does not end with old suffix.
This patch makes lld accept such paths but only add new suffix if Path
ends with old suffix. This fixes a link error where bitcode members in
an archive are regular LTO objects without old suffix.
Acording to tejohnson, this will "enable supporting mix and match of
minimized ThinLTO bitcode files with normal ThinLTO bitcode files in a
single link (where we want to apply the suffix replacement to the
minimized files, and just ignore it for the normal ThinLTO files)."
Reviewers: ruiu, pcc, tejohnson, espindola
Reviewed By: tejohnson
Subscribers: emaste, inglorion, arichardson, eraman, steven_wu, dexonsmith, llvm-commits
Differential Revision: https://reviews.llvm.org/D51055
llvm-svn: 340364
This should be correctly implied by the linker.
This also makes the tests slightly easier to maintain and compare
with the equivalent tests under for other platforms.
Differential Revision: https://reviews.llvm.org/D47513
llvm-svn: 333567
Previously, we had a loop to iterate over options starting with
`--plugin-opt=` and parse them by hand. But we can make OptTable
do that job for us.
Differential Revision: https://reviews.llvm.org/D47167
llvm-svn: 332935
Fangrui Song