通过GN构建铬时，如何为特定目标提供自定义链接器标记？

Question

I am trying to build latest chromium (cef) on my local machine. I have been successful in building it through automate-git.py using the GN framework. However, I also need to provide some extra linker flags to a specific target (libcef).

I believe this is to be done through changes in args.gn file while creating a new build directory. But, I could not get sufficient documentation regarding how exactly to provide linker flags to a specific target in GN.

Any help would be appreciated.

Answer 1

About chromium build configurations, you can reference the following links:

1. Build Instructions (Android) https://www.chromium.org/developers/how-tos/android-build-instructions

2. The guide of gn build system https://chromium.googlesource.com/chromium/src/+/master/tools/gn/docs/quick_start.md

3. About the link flags, you can reference: ldflags https://codereview.chromium.org/1887303003/diff/20001/build/config/compiler/BUILD.gn

    ldflags += [ "-fPIC", "-Wl,-z,noexecstack", "-Wl,-z,now", "-Wl,-z,relro", ] if (!using_sanitizer) { if (!use_cfi_diag) { ldflags += [ "-Wl,-z,defs" ] } # Functions interposed by the sanitizers can make ld think # that some libraries aren't needed when they actually are, # http://crbug.com/234010. As workaround, disable --as-needed. if (!is_nacl && !is_android) { # TODO(pcc): Fix linker bug which requires us to link pthread # unconditionally here (crbug.com/623236). ldflags += [ "-Wl,--no-as-needed", "-lpthread", ] } ldflags += [ "-Wl,--as-needed" ] } 

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