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.

1 files changed, 2 insertions, 39 deletions

diff --git a/sysdeps/unix/sysv/linux/csky/sys/user.h b/sysdeps/unix/sysv/linux/csky/sys/user.h
index 3372ecef75..3c0c96db7b 100644
--- a/sysdeps/unix/sysv/linux/csky/sys/user.h
+++ b/sysdeps/unix/sysv/linux/csky/sys/user.h
@@ -1,4 +1,5 @@
-/* ptrace register data format definitions.  C-SKY version.
+/* This file is not used by C-SKY GDB. ptrace can use pt_regs definition
+   from linux kernel directly.
    Copyright (C) 2018-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
@@ -19,42 +20,4 @@
 #ifndef _SYS_USER_H
 #define _SYS_USER_H  1
 
-struct user_fpregs {
-  unsigned long fsr;		/* FPU status reg.  */
-  unsigned long fesr;		/* FPU exception status reg.  */
-  unsigned long fp[32];		/* FPU general regs.  */
-};
-
-struct user_regs {
-  unsigned long int uregs[34];	/* CSKY V2 has 32 general rgister.  */
-};
-
-/* When the kernel dumps core, it starts by dumping the user struct -
-   this will be used by gdb to figure out where the data and stack segments
-   are within the file, and what virtual addresses to use.  */
-struct user{
-/* We start with the registers, to mimic the way that "memory" is returned
-   from the ptrace(3,...) function.  */
-  struct user_regs    regs;        /* The registers are actually stored.  */
-  int                 u_fpvalid;   /* True if math co-processor being used.  */
-
-/* The rest of this junk is to help gdb figure out what goes where.  */
-  unsigned long int   u_tsize;     /* Text segment size (pages).  */
-  unsigned long int   u_dsize;     /* Data segment size (pages).  */
-  unsigned long int   u_ssize;     /* Stack segment size (pages).  */
-  unsigned long       start_code;  /* Starting virtual address of text.  */
-  unsigned long       start_stack; /* Starting virtual address of stack area.
-				      This is actually the bottom of the stack
-				      the top of the stack is always found in
-				      the esp register.  */
-  long int            signal;      /* Signal that caused the core dump.  */
-  int                 reserved;    /* No longer used.  */
-  struct user_regs *  u_ar0;       /* Used by gdb to help find the values
-				      for the registers.  */
-  unsigned long       magic;       /* To uniquely identify a core file.  */
-  char                u_comm[32];  /* User command that was responsible.  */
-  struct user_fpregs  u_fp;
-  struct user_fpregs* u_fpstate;   /* Math Co-processor pointer.  */
-};
-
 #endif /* _SYS_USER_H */