From 827e30f3a31ee294eb23dc572f8af62158049257 Mon Sep 17 00:00:00 2001 From: Mao Han Date: Mon, 11 Mar 2019 09:48:51 +0800 Subject: C-SKY: remove user_regs definition C-SKY GDB dose not use this file for ptrace and coredump. ptrace can use pt_regs definition from linux kernel directly. The old definition only got 34 regs instead of 38 regs from linux kernel, which will corrupted the memory after ptrace PTRACE_GETREGSET call. * sysdeps/unix/sysv/linux/csky/sys/procfs.h: Use linux definition directly. * sysdeps/unix/sysv/linux/csky/sys/user.h: Remove user_regs definition. --- sysdeps/unix/sysv/linux/csky/bits/procfs.h | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'sysdeps/unix/sysv/linux/csky/bits') diff --git a/sysdeps/unix/sysv/linux/csky/bits/procfs.h b/sysdeps/unix/sysv/linux/csky/bits/procfs.h index e3edf15c85..4ec0c5e759 100644 --- a/sysdeps/unix/sysv/linux/csky/bits/procfs.h +++ b/sysdeps/unix/sysv/linux/csky/bits/procfs.h @@ -20,15 +20,18 @@ # error "Never include directly; use instead." #endif +#include + /* Type for a general-purpose register. */ typedef unsigned long elf_greg_t; +/* Type for a floating-point registers. */ +typedef unsigned long elf_fpreg_t; -/* And the whole bunch of them. We could have used `struct - user_regs' directly in the typedef, but tradition says that - the register set is an array, which does have some peculiar - semantics, so leave it that way. */ -#define ELF_NGREG (sizeof (struct user_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]; -/* Register set for the floating-point registers. */ -typedef struct user_fpregs elf_fpregset_t; +#define ELF_NFPREG (sizeof (struct user_fp) / sizeof (elf_fpreg_t)) +typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; -- cgit v1.2.3