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Merged
maliberty merged 2 commits into from
Jun 18, 2025
Merged

Bazel asan tweak #7608

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b859644
bazel: add cfg=exec asan and profile arguments
oharboe Jun 18, 2025
d13254a
bazel: document asan use-case
oharboe Jun 18, 2025
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18 changes: 9 additions & 9 deletions .bazelrc
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Original file line number Diff line number Diff line change
Expand Up @@ -51,18 +51,18 @@ build --host_per_file_copt=external/.*@-w

# Settings for --config=asan address sanitizer build
build:asan --strip=never
build:asan --copt -fsanitize=address
build:asan --copt -DADDRESS_SANITIZER
build:asan --copt -O1
build:asan --copt -g
build:asan --copt -fno-omit-frame-pointer
build:asan --linkopt -fsanitize=address
build:asan --copt -fsanitize=address --host_copt -fsanitize=address
build:asan --copt -DADDRESS_SANITIZER --host_copt -DADDRESS_SANITIZER
build:asan --copt -O1 --host_copt -O1
build:asan --copt -g --host_copt -g
build:asan --copt -fno-omit-frame-pointer --host_copt -fno-omit-frame-pointer
build:asan --linkopt -fsanitize=address --host_linkopt -fsanitize=address

# Flags with enough debug symbols to get useful outputs with Linux `perf`
build:profile --strip=never
build:profile --copt -g
build:profile --copt -gmlt
build:profile --copt -fno-omit-frame-pointer
build:profile --copt -g --host_copt -g
build:profile --copt -gmlt --host_copt -gmlt
build:profile --copt -fno-omit-frame-pointer --host_copt -fno-omit-frame-pointer

# TODO: document
build --incompatible_strict_action_env
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17 changes: 16 additions & 1 deletion docs/user/Bazel.md
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Expand Up @@ -16,12 +16,27 @@ To list all tests:

Run specific test:

baselisk test //src/upf/test:levelshifter-tcl
baselisk test --test_output=errors //src/upf/test:levelshifter-tcl

To run or list tests below a folder:

bazelisk test src/gpl/...

## Run tests with [address sanetizers](https://github.com/google/sanitizers/wiki/addresssanitizer):

bazelisk test --config=asan src/...

Example output:

```
[deleted]
Direct leak of 18191 byte(s) in 2525 object(s) allocated from:
#0 0x5f8556654e04 (/home/oyvind/.cache/bazel/_bazel_oyvind/896cc02f64446168f604c13ad7b60f8b/execroot/_main/bazel-out/k8-opt-exec-ST-d57f47055a04/bin/external/org_swig/swig+0x37de04) (BuildId: f982b51b51338154ba961612c62b330f)
[deleted]
SUMMARY: AddressSanitizer: 27236 byte(s) leaked in 3801 allocation(s).
[deleted]
```

## Testing an OpenROAD build with ORFS from within the OpenROAD folder

OPENROAD_EXE=$(pwd)/bazel-out/k8-opt-exec-ST-d57f47055a04/bin/openroad make --dir ~/OpenROAD-flow-scripts/flow/ DESIGN_CONFIG=designs/asap7/gcd/config.mk clean_floorplan floorplan
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