馃崚[Swift 6.0]: Set toolchain clang linker to gold (Linux) #73760
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
BFD doesn't work with Swift symbols. We get nasty errors like this: ``` error: link command failed with exit code 1 (use -v to see invocation) /usr/bin/ld: ...wift/CMakeFiles/swiftDispatch.dir/Block.swift.o: relocation R_X86_64_PC32 against protected symbol `$s8Dispatch0A13WorkItemFlagsVSYAAMc' can not be used when making a shared object /usr/bin/ld: final link failed: bad value ```
The just-built Swift driver was picking up the system clang, which would try to use the bfd linker instead of gold or lld. bfd doesn't like how Swift handles protected symbols and fails with the following error: ``` error: link command failed with exit code 1 (use -v to see invocation) /usr/bin/ld: /home/build-user/build/buildbot_linux/libdispatch-linux-x86_64/src/swift/CMakeFiles/swiftDispatch.dir/Block.swift.o: relocation R_X86_64_PC32 against protected symbol `$s8Dispatch0A13WorkItemFlagsVSYAAMc' can not be used when making a shared object /usr/bin/ld: final link failed: bad value ``` This patch tells the Swift-Driver where it should find its clang, and makes it match the clang that is in use through the rest of the build.
|
@swift-ci please test |
DougGregor
approved these changes
May 22, 2024
|
Don't merge this yet! I want to make sure |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
BFD doesn't work with Swift symbols. We get nasty errors like this:
rdar:https://123061492