1403285 - ASAN build fails on macOS (memory/build/malloc_decls.h:48:1: error: no member named 'malloc' in the global namespace; did you mean simply 'malloc'?)

Status: RESOLVED DUPLICATE of bug 1402647

(Firefox Build System :: General, defect)

Description

[Jonathan Watt [:jwatt]]

I'm hopeful that it should be possible to create asan builds on Mac nowadays without jumping through the various hoops (like the PITA of building llvm from source) that our MDN doc describes:

https://developer.mozilla.org/en-US/docs/Mozilla/Testing/Firefox_and_Address_Sanitizer

A lot of the text there sounds like it's not been updated in some time, and apparently asan has been bundled with Xcode for a few years now.

https://stackoverflow.com/questions/32150924/how-do-you-enable-clang-address-sanitizer-in-xcode

It doesn't come with llvm-symbolizer, but homebrew's llvm does and you can point to it using LLVM_SYMBOLIZER.

I played around with various .mozconfig options and fairly consistently seem to get the following build error:

1:38.87 In file included from /Users/jw/mozilla/trees/obj/asan-debug/memory/build/Unified_cpp_memory_build0.cpp:2:
1:38.87 In file included from /Users/jw/mozilla/trees/asan/memory/build/fallback.cpp:18:
1:38.87 /Users/jw/mozilla/trees/asan/memory/build/malloc_decls.h:48:1: error: no member named 'malloc' in the global namespace; did you mean simply 'malloc'?
1:38.87 MALLOC_DECL(malloc, void *, size_t)
1:38.87 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1:38.90 /Users/jw/mozilla/trees/asan/memory/build/fallback.cpp:15:12: note: expanded from macro 'MALLOC_DECL'
1:38.90     return ::name(ARGS_HELPER(ARGS, ##__VA_ARGS__)); \
1:38.90            ^~
1:38.90 /Users/jw/mozilla/trees/asan/memory/build/malloc_decls.h:48:13: note: 'malloc' declared here
1:38.90 MALLOC_DECL(malloc, void *, size_t)
1:38.90             ^

Comment 1

[Jonathan Watt [:jwatt]]

Attachment: .mozconfig

The .mozconfig I've been playing with. Some lines are commented out, but I've tried various permutations uncommenting lines.