Closed Bug 1101070 Opened 9 years ago Closed 9 years ago

Compile error on OSX: "Undefined symbols for architecture x86_64: _replace_get_bridge"


(Firefox Build System :: General, defect)

Not set


(Not tracked)



(Reporter: bgrins, Assigned: glandium)




(1 file)

This morning after updating I can't build anymore.  Here is the error I see:

26:59.84 Undefined symbols for architecture x86_64:
26:59.84   "_replace_get_bridge", referenced from:
26:59.84       _get_bridge in replace_malloc.o
26:59.84 ld: symbol(s) not found for architecture x86_64
26:59.84 clang: error: linker command failed with exit code 1 (use -v to see invocation)
26:59.85 make[5]: *** [libmozglue.dylib] Error 1
26:59.85 make[4]: *** [mozglue/build/target] Error 2
26:59.85 make[4]: *** Waiting for unfinished jobs....
System details: OSX 10.8.5

> clang -v
Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
Target: x86_64-apple-darwin12.5.0
Thread model: posix
I see this with the current inbound tree too. MacOS X 10.8.5, Xcode 5.1.
Seems likely a regression from bug 818922, which added "get_bridge" and "struct ReplaceMallocBridge" in this cset:
Blocks: 818922
Product: Firefox → Core
Flags: needinfo?(mh+mozilla)
This is also affecting my build; Mac OS X 10.9.5, Xcode 6.1.

$ clang -v
Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin13.4.0
Thread model: posix

Bisecting confirmed that it's triggered by bug 818922.
As a workaround, I've added

ac_add_options --disable-replace-malloc

to my mozconfig, and this allows the build to succeed.
Severity: normal → blocker
Bug 818922 added a new replace-malloc symbol that the OSX linker tricks need
to know about.
Attachment #8524927 - Flags: review?(khuey)
Assignee: nobody → mh+mozilla
Comment on attachment 8524927 [details] [diff] [review]
Add missing OSX build flag for the new replace-malloc symbol

Review of attachment 8524927 [details] [diff] [review]:

Stealing review, because this is trivial.

Have you grepped for other replace_* occurrences where you might have forgotten to add replace_get_bridge?
Attachment #8524927 - Flags: review?(khuey) → review+
(In reply to Jonathan Kew (:jfkthame) from comment #5)
> As a workaround, I've added
> ac_add_options --disable-replace-malloc
> to my mozconfig, and this allows the build to succeed.

Thanks, that worked for me.

I learned about the workaround by scanning dev-b2g and dev-platform and seeing nothing, Googling for _replace_get_bridge and getting no hits, and then searching Bugzilla and coming here. My next stop would have been IRC. Just out of curiosity, was there a public announcement that building was broken on the Mac? Is there an established channel for disseminating information such as this?
Flags: needinfo?(mh+mozilla)
Closed: 9 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla36
Product: Core → Firefox Build System
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