tree a79caee0722148a1e3813a0f865f5c2d0b06dad2
parent a7ad13b5c256da91a9b396cefa3fe16380d1d67f
author Takuto Ikuta <tikuta@google.com> 1776784301 +0900
committer gn-scoped@luci-project-accounts.iam.gserviceaccount.com <gn-scoped@luci-project-accounts.iam.gserviceaccount.com> 1776824432 -0700

Add support for c_additional_outputs in config

This feature is needed to support Debug Fission (.dwo files) in
Chromium. Currently, referencing declare_args variables in a toolchain
definition evaluates them in the context of the default toolchain,
causing mismatches for secondary toolchains. Also, we need to control
outputs based on target configs (e.g., whether -gsplit-dwarf is used or
not) rather than applying them globally to all targets in a toolchain.

This CL allows defining `c_additional_outputs` in a `config` block. When
applied to a target, these outputs are expanded and added to the Ninja
build edge's outputs for each source file compilation.

Bug: 502431091
Change-Id: I914b4ab220d68d3f9bd8eacd2fe4655138fb636c
Reviewed-on: https://gn-review.googlesource.com/c/gn/+/21980
Reviewed-by: Matt Stark <msta@google.com>
Reviewed-by: Andrew Grieve <agrieve@google.com>
Commit-Queue: Takuto Ikuta <tikuta@google.com>