From 2054f4af19575d9d2a43bcefa48d2e64f10a25de Mon Sep 17 00:00:00 2001 From: Guo Ren <ren_guo@c-sky.com> Date: Mon, 31 Dec 2018 01:06:53 +0800 Subject: [PATCH] csky: bugfix gdb coredump error. 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 <ren_guo@c-sky.com> Reported-by: Lu Baoquan <lu.baoquan@intellif.com> Reported-by: Liu Mao <liu.mao@intellif.com> --- arch/csky/include/asm/elf.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/csky/include/asm/elf.h b/arch/csky/include/asm/elf.h index 48b5366568abb..d6dbc00e35333 100644 --- a/arch/csky/include/asm/elf.h +++ b/arch/csky/include/asm/elf.h @@ -31,7 +31,12 @@ typedef unsigned long elf_greg_t; typedef struct user_fp elf_fpregset_t; -#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) +/* + * 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). + */ +#define ELF_NGREG ((sizeof(struct pt_regs) / sizeof(elf_greg_t)) - 2) typedef elf_greg_t elf_gregset_t[ELF_NGREG]; -- GitLab