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Enable genrule sandboxing by default

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Now that all the failing genrules have been denylisted.

Also add BUILD_BROKEN_GENRULE_SANDBOXING to disable this behavior.

Bug: 290816499
Test: Presubmits
Change-Id: Id7612065ddc976a088ea1ac4c2d959dadf2b845c
This commit is contained in:
Cole Faust
2023-10-11 14:13:41 -07:00
parent 9ef1caabed
commit 865d19e214
3 changed files with 16 additions and 1 deletions
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Changes.md
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@@ -1,5 +1,14 @@
# Build System Changes for Android.mk/Android.bp Writers
## Soong genrules are now sandboxed
Previously, soong genrules could access any files in the source tree, without specifying them as
inputs. This makes them incorrect in incremental builds, and incompatible with RBE and Bazel.
Now, genrules are sandboxed so they can only access their listed srcs. Modules denylisted in
genrule/allowlists.go are exempt from this. You can also set `BUILD_BROKEN_GENRULE_SANDBOXING`
in board config to disable this behavior.
## Partitions are no longer affected by previous builds
Partition builds used to include everything in their staging directories, and building an