[roll] Roll fuchsia [build] Make rustc_prefix and rust_sysroot source-absolute

This CL makes the value of the 'rustc_prefix' and 'rust_sysroot'
global path source-absolute or system-absolute (if redefined through
a build argument).

This makes it more consistent with 'clang_prefix', and less surprising
overall.

This also adds 'rebased_rustc_prefix', which is the same path rebased
to 'root_build_dir', useful in string expansions that are passed as
command line arguments.

For testing, the content of out/default generated by 'fx gen' was
compared before/after this CL was applied. It is identical, except
for the fact that --toolchain-lib-dir PATH now uses a shorter path
that replaces ROOT/bin/../lib with ROOT/lib.

Original-Bug: None

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/554563
Original-Revision: ce6f7d25be91c019d1f1bed40a305b3466d2bd3c
GitOrigin-RevId: 954eba377adaf229f73745a9930037af6731bba2
Change-Id: I02d814501d11801e30db90c4659b4d4e9f926df3
1 file changed
tree: 6e9ead6857b0a26f5a04dd961eb013acfa2aba96
  1. garnet/
  2. infra/
  3. peridot/
  4. third_party/
  5. topaz/
  6. zircon/
  7. firmware
  8. flower
  9. jiri.lock
  10. minimal
  11. prebuilts
  12. README.md
  13. stem
  14. test_durations
README.md

Integration

This repository contains Fuchsia's Global Integration manifest files.

Making changes

All changes should be made to the internal version of this repository. Our infrastructure automatically updates this version when the internal one changes.

Currently all changes must be made by a Google employee. Non-Google employees wishing to make a change can ask for assistance via the IRC channel #fuchsia on Freenode.

Obtaining the source

First install Jiri.

Next run:

$ jiri init
$ jiri import minimal https://fuchsia.googlesource.com/integration
$ jiri update

Third party

Third party projects should have their own subdirectory in ./third_party.