| Message ID | 20240201-exception_ip-v1-0-aa26ab3ee0b5@flygoat.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Handle delay slot for extable lookup | expand |
On Thu, 1 Feb 2024 at 07:46, Jiaxun Yang <jiaxun.yang@flygoat.com> wrote: > > arch/alpha/include/asm/ptrace.h | 1 + > arch/arc/include/asm/ptrace.h | 1 + > arch/arm/include/asm/ptrace.h | 1 + > arch/csky/include/asm/ptrace.h | 1 + > arch/hexagon/include/uapi/asm/ptrace.h | 1 + > arch/loongarch/include/asm/ptrace.h | 1 + > arch/m68k/include/asm/ptrace.h | 1 + > arch/microblaze/include/asm/ptrace.h | 3 ++- > arch/mips/include/asm/ptrace.h | 2 ++ > arch/mips/kernel/ptrace.c | 7 +++++++ > arch/nios2/include/asm/ptrace.h | 3 ++- > arch/openrisc/include/asm/ptrace.h | 1 + > arch/parisc/include/asm/ptrace.h | 1 + > arch/s390/include/asm/ptrace.h | 1 + > arch/sparc/include/asm/ptrace.h | 2 ++ > arch/um/include/asm/ptrace-generic.h | 1 + > mm/memory.c | 4 ++-- > 17 files changed, 28 insertions(+), 4 deletions(-) The only user right now is mm/memory.c, and it doesn't even include <asm/ptrace.h>, but instead does the proper thing and includes <linux/ptrace.h> So please make <linux/ptrace.h> just do #ifndef exception_ip #define exception_ip(x) instruction_pointer(x) #endif and all those non-MIPS architecture updates should just go away, and the diffstat should look something like arch/mips/kernel/ptrace.c | 7 +++++++ include/linux/ptrace.h | 4 ++++ mm/memory.c | 4 ++-- instead. Linus
Hi all, This series fixed extable handling for architecture delay slot (MIPS). Please see previous discussions at [1]. There are some other places in kernel not handling delay slots properly, such as uprobe and kgdb, I'll sort them later. Thanks! [1]: https://lore.kernel.org/lkml/75e9fd7b08562ad9b456a5bdaacb7cc220311cc9.camel@xry111.site To: Oleg Nesterov <oleg@redhat.com> To: Thomas Bogendoerfer <tsbogend@alpha.franken.de> To: Andrew Morton <akpm@linux-foundation.org> To: Ben Hutchings <ben@decadent.org.uk> Cc: <linux-arch@vger.kernel.org> Cc: <linux-kernel@vger.kernel.org> Cc: <linux-mips@vger.kernel.org> Cc: <linux-mm@kvack.org> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> --- Jiaxun Yang (3): ptrace: Introduce exception_ip arch hook MIPS: Clear Cause.BD in instruction_pointer_set mm/memory: Use exception ip to search exception tables arch/alpha/include/asm/ptrace.h | 1 + arch/arc/include/asm/ptrace.h | 1 + arch/arm/include/asm/ptrace.h | 1 + arch/csky/include/asm/ptrace.h | 1 + arch/hexagon/include/uapi/asm/ptrace.h | 1 + arch/loongarch/include/asm/ptrace.h | 1 + arch/m68k/include/asm/ptrace.h | 1 + arch/microblaze/include/asm/ptrace.h | 3 ++- arch/mips/include/asm/ptrace.h | 2 ++ arch/mips/kernel/ptrace.c | 7 +++++++ arch/nios2/include/asm/ptrace.h | 3 ++- arch/openrisc/include/asm/ptrace.h | 1 + arch/parisc/include/asm/ptrace.h | 1 + arch/s390/include/asm/ptrace.h | 1 + arch/sparc/include/asm/ptrace.h | 2 ++ arch/um/include/asm/ptrace-generic.h | 1 + mm/memory.c | 4 ++-- 17 files changed, 28 insertions(+), 4 deletions(-) --- base-commit: 06f658aadff0e483ee4f807b0b46c9e5cba62bfa change-id: 20240131-exception_ip-194e4ad0e6ca Best regards,