Re: [PATCH] powerpc: add little endian flag to syscall_get_arch()

On 12/02/2014 01:27 PM, Richard Guy Briggs wrote: > Since both ppc and ppc64 have LE variants which are now reported by uname, > add that flag (__AUDIT_ARCH_LE) to syscall_get_arch() and add > AUDIT_ARCH_PPC*LE variants. > > Without this, perf trace and auditctl fail. > > Mainline kernel reports ppc64le (per a058801) but there is no matching > AUDIT_ARCH_PPC64LE. > > See: > https://www.redhat.com/archives/linux-audit/2014-August/msg00082.html > https://www.redhat.com/archives/linux-audit/2014-December/msg00004.html > > Signed-off-by: Richard Guy Briggs <rgb(a)redhat.com&gt; > --- > > arch/powerpc/include/asm/syscall.h | 6 +++++- > include/uapi/linux/audit.h | 2 ++ > 2 files changed, 7 insertions(+), 1 deletions(-) > > diff --git a/arch/powerpc/include/asm/syscall.h > b/arch/powerpc/include/asm/syscall.h index 6fa2708..a58acab 100644 > --- a/arch/powerpc/include/asm/syscall.h > +++ b/arch/powerpc/include/asm/syscall.h > @@ -90,6 +90,10 @@ static inline void syscall_set_arguments(struct > task_struct *task,> > static inline int syscall_get_arch(void) > { > > - return is_32bit_task() ? AUDIT_ARCH_PPC : AUDIT_ARCH_PPC64; > + int arch = is_32bit_task() ? AUDIT_ARCH_PPC : AUDIT_ARCH_PPC64; > +#ifdef __LITTLE_ENDIAN__ > + arch |= __AUDIT_ARCH_LE > +#endif > + return arch; > > } > #endif /* _ASM_SYSCALL_H */ > > diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h > index 4d100c8..fe29a99 100644 > --- a/include/uapi/linux/audit.h > +++ b/include/uapi/linux/audit.h > @@ -364,7 +364,9 @@ enum { > > #define AUDIT_ARCH_PARISC (EM_PARISC) > #define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT) > #define AUDIT_ARCH_PPC (EM_PPC) > > +#define AUDIT_ARCH_PPCLE (EM_PPC|__AUDIT_ARCH_LE) > > #define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT) > > +#define AUDIT_ARCH_PPC64LE (EM_PPC64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) > > #define AUDIT_ARCH_S390 (EM_S390) > #define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT) > #define AUDIT_ARCH_SH (EM_SH) IBM would know for certain but I wasn't aware there was a PPCLE (32bit compat).