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[hwasan] Increase BB to explore for reachability

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We pass mcpu=cortex-a55 for our build, which increases BB to the point
where the LLVM default of 32 is not enough. This caused worse coverage
for use-after-scope detection, and increased stack usage.

Test: build oriole_hwasan
Bug: 229654778
Change-Id: I6ddb47d7224a9c6ddbf2641c043e3430d330c5a9
This commit is contained in:
Florian Mayer 2023-06-16 16:50:59 -07:00
parent a998446d3e
commit c746619feb
1 changed files with 1 additions and 0 deletions
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cc/sanitize.go
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@ -61,6 +61,7 @@ var (
"--aarch64-enable-global-isel-at-O=-1", "--aarch64-enable-global-isel-at-O=-1",
"-fast-isel=false", "-fast-isel=false",
"-hwasan-use-after-scope=1", "-hwasan-use-after-scope=1",
"-dom-tree-reachability-max-bbs-to-explore=128",
} }
cfiBlocklistPath = "external/compiler-rt/lib/cfi" cfiBlocklistPath = "external/compiler-rt/lib/cfi"