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sys/conf: Support building kasan with gcc on arm64
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Authored by andrew on May 22 2024, 2:35 PM.
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Reviewers
brooks
imp
jhb
Summary
  • Remove -mllvm flags that don't exist in gcc
  • Set the shadow offset with -fasan-shadow-offset

This allows the arm64 GENERIC-KASAN kernel to build with gcc13.

Sponsored by: Arm Ltd

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Repository
rG FreeBSD src repository
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Build Status
Buildable 58065
Build 54953: arc lint + arc unit

Event Timeline

I wonder if we want a CFLAGS_GEN=${CFLAGS:N-flto*:N-fno-common:N-fsanitize*:N-fno-sanitize*:N-fasan-shadow-offset*} or maybe a CFLAGS_NOSAN in kern.pre.mk so we're not having to remove arguments in so many places?

This revision is now accepted and ready to land.Wed, Jun 5, 4:51 PM