kc3-lang/angle/third_party/mesa/BUILD.gn

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• Hash : 41184c21
  Author :
  Date : 2022-09-29T10:50:39
  

  Add support for building Mesa + Zink.
  
  Uses a conditional gclient variable "angle_mesa". You must set
  this to True in your .gclient to download and configure Mesa.
  
  After that you must also set angle_build_mesa=true in your GN
  args. We call through to meson in order to setup and build.
  
  Mesa sources and targets are written into an auto-generated GNI
  file. We must update this file on the same cadence as Mesa rolls.
  
  Because the version of libdrm we use in our sysroot is older than
  Mesa requires, this CL also includes a custom libdrm build. Also
  in order to run bison and flex on the old sysroot that Chrome
  infra runs with, this CL includes a new version of flex and bison
  that run without newer versions of GLIBC.
  
  Bug: angleproject:7689
  Change-Id: I1aeeda1e6f3cf1d5f878aeab5209afa7e1fb5324
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3933062
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• third_party/mesa/BUILD.gn

• # Copyright 2022 The ANGLE Project Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  import("../../gni/angle.gni")
  import("mesa_autogen.gni")
  
  angle_mesa_build_dir = "$root_build_dir/mesa"
  angle_libdrm_build_dir = "$root_build_dir/libdrm"
  
  action("libdrm_setup") {
    script = "mesa_build.py"
    args = [
      "setup",
      "libdrm",
      rebase_path(root_build_dir, root_build_dir),
    ]
    sources = [ "libdrm.stamp" ]
    outputs = [ "$angle_libdrm_build_dir/libdrm.stamp" ]
  }
  
  action("libdrm") {
    script = "mesa_build.py"
    args = [
      "compile",
      rebase_path(angle_libdrm_build_dir, root_build_dir),
    ]
    sources = rebase_path(angle_libdrm_sources, ".", "../libdrm")
    outputs = get_path_info(
            rebase_path(angle_libdrm_outputs, ".", angle_libdrm_build_dir),
            "abspath")
    deps = [ ":libdrm_setup" ]
  }
  
  action("mesa_setup") {
    script = "mesa_build.py"
    args = [
      "setup",
      "mesa",
      rebase_path(root_build_dir, root_build_dir),
    ]
    sources = [ "mesa.stamp" ]
    outputs = [ "$angle_mesa_build_dir/mesa.stamp" ]
    deps = [ ":libdrm" ]
  }
  
  action("mesa") {
    script = "mesa_build.py"
    args = [
      "compile",
      rebase_path(angle_mesa_build_dir, root_build_dir),
    ]
    sources = rebase_path(angle_mesa_sources, ".", "src")
    outputs =
        get_path_info(rebase_path(angle_mesa_outputs, ".", angle_mesa_build_dir),
                      "abspath")
    deps = [ ":mesa_setup" ]
  }
  

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