commit | 1d9935cf37fdd1b9eb18f3e41d6142a345bba4a6 | [log] [tgz] |
---|---|---|
author | Ryan Harrison <rharrison@chromium.org> | Mon Jan 11 15:22:19 2021 +0000 |
committer | Commit Bot service account <commit-bot@chromium.org> | Mon Jan 11 15:22:19 2021 +0000 |
tree | fcfc72244ebaca53142a49949c74a4839e49a3f1 | |
parent | 795b6b5a284da6fb856727fc282229970bc2c733 [diff] |
Revert 3 fuzzing CLs, since they are preventing rolling into Chromium. Revert "Adding fuzzing for Transforms" This reverts commit 4a29008c7e3ad4b75efefcaa2a3c9087152d84a6. Revert "Add fuzzers for various emission paths" This reverts commit 39545b7e7c464a661515cd7a739ee752635ab268. Revert "Create common utility class for fuzzing" This reverts commit 766e31d507109a703f08510900f90c805a655d96. Change-Id: Ia4e4ea2a4a5f423ea5bfa8ca9659c4028b558b45 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/37180 Auto-Submit: Ryan Harrison <rharrison@chromium.org> Commit-Queue: dan sinclair <dsinclair@chromium.org> Reviewed-by: dan sinclair <dsinclair@chromium.org>
Tint is a compiler for the WebGPU Shader Language (WGSL).
This is not an officially supported Google product.
TINT_BUILD_SPV_READER
: enable the SPIR-V input reader (off by default)TINT_BUILD_WGSL_READER
: enable the WGSL input reader (on by default)TINT_BUILD_SPV_WRITER
: enable the SPIR-V output writer (on by default)TINT_BUILD_WGSL_WRITER
: enable the WGSL output writer (on by default)TINT_BUILD_FUZZERS
: enable building fuzzzers (off by default)Tint uses Chromium dependency management so you need to install depot_tools and add it to your PATH.
# Clone the repo as "tint" git clone https://dawn.googlesource.com/tint tint cd tint # Bootstrap the gclient configuration cp standalone.gclient .gclient # Fetch external dependencies and toolchains with gclient gclient sync
mkdir -p out/Debug cd out/Debug cmake -GNinja ../.. ninja # or autoninja
mkdir -p out/Debug cd out/Debug cmake ../.. make # -j N for N-way parallel build
mkdir -p out/Debug gn gen out/Debug autoninja -C out/Debug
If you are attempting fuzz, using TINT_BUILD_FUZZERS=ON
, the version of llvm in the XCode SDK does not have the needed libfuzzer functionality included.
The build error that you will see from using the XCode SDK will look something like this:
ld: file not found:/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/11.0.0/lib/darwin/libclang_rt.fuzzer_osx.a
The solution to this problem is to use a full version llvm, like what you would get via homebrew, brew install llvm
, and use something like CC=<path to full clang> cmake ..
to setup a build using that toolchain.
The gn based work flow uses the Chromium toolchain for building in anticipation of integration of Tint into Chromium based projects. This toolchain has additional plugins for checking for style issues, which are marked with [chromium-style] in log messages. This means that this toolchain is more strict then the default clang toolchain.
In the future we will have a CQ that will build this work flow and flag issues automatically. Until that is in place, to avoid causing breakages you can run the [chromium-style] checks using the CMake based work flows. This requires setting CC
to the version of clang checked out by gclient sync
and setting the TINT_CHECK_CHROMIUM_STYLE
to ON
.
mkdir -p out/style cd out/style cmake ../.. CC=../../third_party/llvm-build/Release+Asserts/bin/clang cmake -DTINT_CHECK_CHROMIUM_STYLE=ON ../../ # add -GNinja for ninja builds
Please file any issues or feature requests at https://bugs.chromium.org/p/tint/issues/entry
Please see the CONTRIBUTING and CODE_OF_CONDUCT files on how to contribute to Tint.