tree 5b3e3ddc80de263c3ba81ee2dcaf23f1ee47d499
parent 5933f0b2c66017af27de3aeecc475dc2281d9f1c
author Yilong Li <liyl@google.com> 1604548593 -0800
committer Yilong Li <liyl@google.com> 1604613167 +0000

build: Allow generating layers json file for cross-compiling

Upstream change: https://github.com/KhronosGroup/Vulkan-ValidationLayers/pull/2302

This change is the same as upstream change except that it adds Fuchsia
specific BUILD.gn modification.

----------------------------------

`generate_vulkan_layers_json.py` generates validation layer description
JSON file where the layer library file name is determined by the
host system type. However, for Fuchsia cross-compiling this doesn't
work. Instead, we need to specify the target platform type explicitly
in the script.

This change adds an optional argument `--platform Linux|Darwin|
Windows|...` to `generate_vulkan_layers_json.py`, so that it could
generate layers json file with correct library filename for specific
target platforms. It is useful when making cross-platform builds.

Test: Run `generate_vulkan_layers_json.py`
  1) without `--platform` argument, 2) with `--platform Windows`,
  3) with `--platform Linux`, 4) `--platform Darwin` and
  5) with `--platform Fuchsia`.

Verification:
  - Run "fx set workstation.x64; fx build" on macOS.
  - Verified that out/default/vulkan_layers_data/
    VkLayer_khronos_validation.json uses "VkLayer_khronos_validation.so"
    as library file name.

Bug: 63670

Change-Id: If0ae9571e9b82c78b1caef7c5ac116ef31270999
Reviewed-on: https://fuchsia-review.googlesource.com/c/third_party/Vulkan-ValidationLayers/+/447334
Reviewed-by: John Rosasco <rosasco@google.com>
Reviewed-by: Yilong Li <liyl@google.com>