Le 08/02/2023 à 04:22, Rohan McLure a écrit : > Enable HAVE_ARCH_KCSAN on all powerpc platforms, 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 PPC64.
Copy/pasted from v3 ? In v4 PPC32 is supported as well. > > See documentation in Documentation/dev-tools/kcsan.rst for more > information. > > Signed-off-by: Rohan McLure <rmcl...@linux.ibm.com> > --- > v3: Restrict support to 64-bit, as TSAN expects 64-bit __atomic_* compiler > built-ins. > --- > arch/powerpc/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig > index b8c4ac56bddc..55bc2d724c73 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 PPC64 That if PPC64 should go away as we now have the builtins. > select HAVE_ARCH_KFENCE if ARCH_SUPPORTS_DEBUG_PAGEALLOC > select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET > select HAVE_ARCH_KGDB
