Bug 310288 – Fix Thread Sanitizer builds of TestWebKitAPI: ld: Too many personality routines for compact unwind to encode

• Component: Tools / Tests
• Status: RESOLVED FIXED

[David Kilzer (:ddkilzer)]

Thread Sanitizer (TSan) builds of `TestWebKitAPI` and `TestWebKitAPIApp` fail at the link step with the following error:

```
ld: Too many personality routines for compact unwind to encode. Found routines:
  '___gcc_personality_v0'
  '___gxx_personality_v0'
  '___objc_personality_v0'
  '__swift_exceptionPersonality'
Move one or more unique personality routine users to a separate dynamic library.
clang++: error: linker command failed with exit code 1
```

`TestWebKitAPIBundle` fails with a cascading error due to the missing `TestWebKitAPI` executable.

`TestWebKitAPI` now links Swift source files added by the "[Swift in WebKit]" commit series (308668@main, 309343@main). The addition of Swift introduces `__swift_exceptionPersonality` as a fourth exception handling personality routine, which exceeds the compact unwind encoding limit.

The same error was previously fixed for `WebCore.framework` and `WebKit.framework` in Bug 299224 (300615@main).

[Radar WebKit Bug Importer]

<rdar://problem/172926718>

[David Kilzer (:ddkilzer)]

Pull request: https://github.com/WebKit/WebKit/pull/60943

[EWS]

Committed 309575@main (7ac0919ca48b): <https://commits.webkit.org/309575@main>

Reviewed commits have been landed. Closing PR #60943 and removing active labels.