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Diffstat (limited to 'compiler_wrapper/README.md')
| -rw-r--r-- | compiler_wrapper/README.md | 53 |
1 files changed, 50 insertions, 3 deletions
diff --git a/compiler_wrapper/README.md b/compiler_wrapper/README.md index 794e1635..e55bb669 100644 --- a/compiler_wrapper/README.md +++ b/compiler_wrapper/README.md @@ -12,16 +12,63 @@ package, including the build script, and then build from there without a dependency on toolchain-utils itself. -## Update Chrome OS +## Testing Inside the Chroot -Copy over sources and `build.py` to Chrome OS: +To test updates to the wrapper locally: + +Run `install_compiler_wrapper.sh` to install the new wrapper in the chroot: +``` +(chroot) ~/trunk/src/third_party/toolchain-utils/compiler_wrapper/install_compiler_wrapper.sh +``` + +Then perform the tests, e.g. build with the new compiler. + + +## Updating the Wrapper for Chrome OS + +To update the wrapper for everyone, the new wrapper configuration must be copied +into chromiumos-overlay, and new revisions of the gcc and llvm ebuilds must be +created. + +Copy over sources and `build.py` to chromiumos-overlay: ``` (chroot) /mnt/host/source/src/third_party/chromiumos-overlay/sys-devel/llvm/files/update_compiler_wrapper.sh ``` +Rename chromiumos-overlay/sys-devel/llvm/llvm-${VERSION}.ebuild to the next +revision number. For example, if the current version is +11.0_pre394483_p20200618-r2: +``` +(chroot) cd ~/trunk/src/third_party/chromiumos-overlay +(chroot) git mv llvm-11.0_pre394483_p20200618-r2.ebuild llvm-11.0_pre394483_p20200618-r3.ebuild +``` + +Rename chromiumos-overlay/sys-devel/gcc/gcc-${VERSION}.ebuild to the next +revision number. For example, if the current version is 4.9.2-r254: +``` +(chroot) cd ~/trunk/src/third_party/chromiumos-overlay +(chroot) git mv sys-devel/gcc/gcc-4.9.2-r254.ebuild sys-devel/gcc/gcc-4.9.2-r255.ebuild +``` + +Edit the new ebuild file and change the number at the end to match the new revision: +``` +-# If you need to force a cros_workon uprev, change this number (you can use next +-# uprev): 254 ++# If you need to force a cros_workon uprev, change this number (you can use next ++# uprev): 255 +``` + +Commit those changes together with the changes made by +`update_compiler_wrapper.sh`. + +The changes can then be reviewed and submitted through the normal process. + + +## Paths + `build.py` is called by these ebuilds: -- third_party/chromiumos-overlay/sys-devel/llvm/llvm-9.0_pre361749_p20190714.ebuild +- third_party/chromiumos-overlay/sys-devel/llvm/llvm-*.ebuild - third_party/chromiumos-overlay/sys-devel/gcc/gcc-*.ebuild Generated wrappers are stored here: |