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Questions tagged [gn]

For questions related to Google's GN build system.

Google's GN is a meta build system for generating low-level ninja build scripts. The name GN derives from "Generate-Ninja". GN is used by major Google projects such as Chromium, Skia and Fuchsia.

Reference: https://gn.googlesource.com/gn/

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BUILD.gn: how to add all .c files in one directory into sources

how to add all .c files in one directory into sources. this is not correct: sources = [ "./fuzz_ioctl.c", "./Secodefuzz/mutators/*.c", "./Secodefuzz/common/*.c" ] There is so many files in Secodefuzz/mutators and Secodefuzz/common. I don't want to…
Sword Destiny
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chromium build error gn gen out/Default in Ubuntu

When I'm setting up the build I'm getting the error in Ubuntu, I'm pasting my error shown in terminal here (Note: /home/quic/ is my home directory) when i type gn gen out/Default it get the following error `quic@quic:\~/chromium/src$ gn gen…
himanshu shukla
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Could not find gn executable at: C:\...\buildtools\win\gn.exe

I'm running into the following error: Could not find gn executable at: C:\...\JavaScriptApplications\electron\buildtools\win\gn.exe after running the following gclient command as part of the instructions to build electron from source: gn gen…
flyingfishcattle
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Unknown function (set_sources_assignment_filter)

I'm attempting to build an older version of Chromium (64.0.3282.123) on Linux. Running gn args out/Default produces the error Generating files... ERROR at //build/config/BUILDCONFIG.gn:495:1: Unknown…
Daniel Walker
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Build V8 with GN and MinGW

I would like to build a static, monolithic library suitable for embedding via MinGW. This is a multiplatform project and I want to avoid switching my entire toolchain over to MSVC. All answers on StackOverflow, Google Groups and the v8 wiki refer to…
DragonDePlatino
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Building WebRTC in multithreaded DLL on Windows

Straight question about WebRTC compilation on Windows (GN/Ninja): Is there a specific configuration in GN that tells ninja to build WebRTC into DLLs that can be consumed by a MSVC application? Currently I just build them statically, but this is not…
Mauro
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How to configure GN Ninja files when adding includes in Google Chromium source code?

I'm developing new features for an old version of Google Chrome (71.0.3578.141). In the file src/content/browser/devtools/protocol/page_handler.cc, I need to add the following includes: src/content/browser/devtools/protocol/page_handler.cc: #include…
LGCD
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Compile GN-based projects with modified compiler flags

The build system that V8 uses is not straightforward. Assume I desired to add -save-temps to the build flags to keep all intermediate files produced during compilation. Where would I specify this information? Do you specify it in a particular…
Melab
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Understanding the GN build system in Fuchsia OS, what is `build_api_module`?

GN stands for Generate Ninja. It generates ninja files which build things. The main file is BUILD.GN at the root of the fuchsia source tree It contains a lot of build_api_module calls: build_api_module("images") { testonly = true data_keys = […
Rafaelo
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Function Calling Error While linking on WSL

I have a project which is being developed in C++. The Build Files are getting created using GN along with Clang. But the issue is that I am not able to create the executable main from GN. You can see the functions defined below for…
Rohit Nagpal
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How to customize Chromium (Windows Platform)

I want to modify and build the Chromium's information on Windows OS. The application's name, author and other: Example: Chromium -> Edge The Chromium Authors -> Microsoft The name of file that generated by build: Example: chrome.exe…
Levi Marvin
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headless_shell sgementation fault when start running on arm64

when i finished cross-compile chrome for amr64, I found that an error 'Segmentation fault' would be reported after starting chrome. The cross-compile server system version is: Linux version 4.4.0-157-generic (buildd@lgw01-amd64-037) (gcc version…
Bob
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Chromium Linux ARM Build - How can you reduce the size of the built Chrome binary file?

I have been following the steps detailed in the page below to cross compile and build chromium (v87) for a Linux ARM device: https://chromium.googlesource.com/chromium/src/+/master/docs/linux/build_instructions.md I have successfully built the…
Balwinder Singh
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Passing GN command line arguments to dependant BUILD.gn files

I'm trying to compile WebRTC M85 with OpenSSL and I have to edit some BUILD.gn files to modify hard-coded dependencies to BoringSSL. The command line is something like (simplified) : gn gen "intermediate/" --args="target_cpu=\"x64\"…
SamT
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How to distribute Chromium binary after compiling? Directory has over 39GB

I want to distribute Chromium I just compiled. The problem is, just after compiling, the directory with the binary weights over 39GB! How can I filter only needed for operation files? I think it should be at most about 1GB. I am on Windows, and…
JMKS
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