kernel/arch/csky/include/asm/elf.h, branch linux-5.1.y

csky: Add EM_CSKY_OLD 39

2018-12-31T15:17:24Z

C-SKY historically used 39, the same value as MCORE, from which the architecture was derived. C-SKY binutils support both EM_CSKY and EM_CSKY_OLD, confirmed by binutils:include/elf/common.h Signed-off-by: Guo Ren

csky: bugfix gdb coredump error.

2018-12-31T02:59:19Z

In gdb/bfd elf32-csky.c, csky_elf_grok_prstatus() use fixed size of elf_prstatus. It's 148 for abiv1 and 220 for abiv2, the size is enough for coredump and no need full sizeof(struct pt_regs). Signed-off-by: Guo Ren Reported-by: Lu Baoquan Reported-by: Liu Mao

elf-em.h: add EM_CSKY

2018-12-30T13:14:07Z

The uapi/linux/audit.h header is going to use EM_CSKY in order to define AUDIT_ARCH_CSKY which is needed to implement syscall_get_arch() which in turn is required to extend the generic ptrace API with PTRACE_GET_SYSCALL_INFO request. The value for EM_CSKY has been taken from arch/csky/include/asm/elf.h and confirmed by binutils:include/elf/common.h Cc: Guo Ren Cc: Oleg Nesterov Cc: Andy Lutomirski Cc: Elvira Khabirova Cc: Eugene Syromyatnikov Signed-off-by: Dmitry V. Levin Signed-off-by: Guo Ren

csky: ELF and module probe

2018-10-25T16:54:23Z

This patch adds ELF definition and module relocate codes. Signed-off-by: Guo Ren Reviewed-by: Arnd Bergmann