Hello, how does this happen?
On Tue, Feb 18, 2025 at 12:48:01PM +0800, Shung-Hsi Yu wrote: > Due to include chain (below), powerpc's asm-compat.h is part of UAPI, > thus it should use the __clang__ macro to directly detect whether Clang > is used rather then relying on the kernel config setting. The later is > unreliable because the userspace tools that uses UAPI may be compile > with a different compiler than the one used for the kernel, leading to > incorrect constrain selection (see link for an example of such). > > include/uapi/linux/ptrace.h > arch/powerpc/include/asm/ptrace.h There is arch/powerpc/include/uapi/asm/ptrace.h and if the installed header is used this is what should be included. That does no include other asm headers. Thanks Michal > arch/powerpc/include/asm/paca.h > arch/powerpc/include/asm/atomic.h > arch/powerpc/include/asm/asm-compat.h > > Link: https://github.com/iovisor/bcc/issues/5172 > Signed-off-by: Shung-Hsi Yu <shung-hsi...@suse.com> > --- > arch/powerpc/include/asm/asm-compat.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/include/asm/asm-compat.h > b/arch/powerpc/include/asm/asm-compat.h > index f48e644900a2..34f8740909a9 100644 > --- a/arch/powerpc/include/asm/asm-compat.h > +++ b/arch/powerpc/include/asm/asm-compat.h > @@ -37,7 +37,7 @@ > #define STDX_BE stringify_in_c(stdbrx) > #endif > > -#ifdef CONFIG_CC_IS_CLANG > +#ifdef __clang__ > #define DS_FORM_CONSTRAINT "Z<>" > #else > #define DS_FORM_CONSTRAINT "YZ<>" > -- > 2.48.1 >
