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build: allow building tools separately (#9384)

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Building tools separately is necessary for the existing
cross-complation usecase.  We generalize this by introducing
two cmake vars that enable exporting and importing
prebuilt tools.

The intended usecase is to enable ASAN-built filament without
having to run ASAN-built matc (which is prohibitively slow).

build.sh has been modified to add a `-y` flag forprebuilding
tools.
This commit is contained in:
Powei Feng
2025-10-31 22:23:15 +00:00
committed by GitHub
parent bf6c51bae6
commit 778cbe09d1
15 changed files with 144 additions and 19 deletions
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10
docs_src/src_mdbook/src/notes/asan_ubsan.md
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@@ -2,11 +2,17 @@
## Enabling
When building though build.sh, pass the `-b` flag. This sets the cmake variable
When building though `build.sh`, pass the `-b` flag. This sets the cmake variable
`FILAMENT_ENABLE_ASAN_UBSAN=ON` which eventually passes `"-fsanitize=address -fsanitize=undefined"`
to all compile and link operations.
If building through CMake directly, or an IDE like CLion that doesn't use build.sh, instead pass
It might be desirable to pair the `-b` with `-y release`. The `-y` flag indicates that targets
in `/tools` will be built separately from the filament target, and the filament build depends on
the `/tools` targets as prebuilt binaries. This separation reduces ASAN/UBSAN build time
considerably. This option assumes that the user is trying to catch sanitization issues for
filament and not the tools that are used to build filament.
If building through CMake directly, or an IDE like CLion that doesn't use `build.sh`, instead pass
`-DFILAMENT_ENABLE_ASAN_UBSAN=ON` to cmake in order to get the same result.
## Getting memory leak detection on Mac