diff options
| author | Rohan McLure <rmclure@linux.ibm.com> | 2023-02-06 13:18:01 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-02-12 22:09:20 +1100 |
| commit | 6f0926c00565a91f3bd7ca1aa05db307daed5e0f (patch) | |
| tree | 4d21b60672a260284af8184531b9ea0e98e510c2 /arch/powerpc/Kconfig | |
| parent | 4f8e09106f6e457c6e9a4ce597fa9ae2bda032c3 (diff) | |
powerpc/kcsan: Add KCSAN Support
Enable HAVE_ARCH_KCSAN for 64-bit Book3S, permitting use of the kernel
concurrency sanitiser through the CONFIG_KCSAN_* kconfig options. KCSAN
requires compiler builtins __atomic_* 64-bit values, and so only report
support on 64-bit.
See documentation in Documentation/dev-tools/kcsan.rst for more
information.
Signed-off-by: Rohan McLure <rmclure@linux.ibm.com>
[mpe: Limit to Book3S to avoid build failure on Book3E]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230206021801.105268-6-rmclure@linux.ibm.com
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 24e023da4d2e..1f3306e9d622 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -198,6 +198,7 @@ config PPC select HAVE_ARCH_KASAN if PPC_RADIX_MMU select HAVE_ARCH_KASAN if PPC_BOOK3E_64 select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN + select HAVE_ARCH_KCSAN if PPC_BOOK3S_64 select HAVE_ARCH_KFENCE if ARCH_SUPPORTS_DEBUG_PAGEALLOC select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET select HAVE_ARCH_KGDB |