tree 0cf415edea3ce66e729fc8a118bf2a67c357870b
parent 0be2cd5c9a7e6afcc74a4265c2ec63816ae2c5f0
author Wyatt Hepler <hepler@google.com> 1603987699 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1604529067 +0000

CMake: Revamp CMake build

- Define CMake cache variables (similar to gn args) for facade backends.
- Create simple initial toolchain files for GCC and Clang.
- Misc updates to pigweed.cmake and pw_build/CMakeLists.txt.
- Add or expand various CMakeLists.txt files.
- Watch CMake files in watch.py to support using CMake in pw watch.

Change-Id: I490d157485d02811a11f6a3589a0508ea1851f58
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/22840
Pigweed-Auto-Submit: Wyatt Hepler <hepler@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Reviewed-by: Keir Mierle <keir@google.com>