nios2: update pt_regs

Remove struct pt_regs from user header and use generic ucontext.h.

Signed-off-by: Chung-Ling Tang <cltang@codesourcery.com>
Acked-by: Ley Foon Tan <lftan@altera.com>

arch/nios2/include/uapi/asm/Kbuild

@@ -2,3 +2,5 @@ include include/uapi/asm-generic/Kbuild.asm
 
 header-y += elf.h
 header-y += ucontext.h
+
+generic-y += ucontext.h

arch/nios2/include/uapi/asm/elf.h

@@ -50,9 +50,7 @@
 
 typedef unsigned long elf_greg_t;
 
-#define ELF_NGREG	\
-	((sizeof(struct pt_regs) + sizeof(struct switch_stack)) /	\
-		sizeof(elf_greg_t))
+#define ELF_NGREG		49
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 
 typedef unsigned long elf_fpregset_t;

arch/nios2/include/uapi/asm/ptrace.h

@@ -67,53 +67,9 @@
 
 #define NUM_PTRACE_REG (PTR_TLBMISC + 1)
 
-/* this struct defines the way the registers are stored on the
-   stack during a system call.
-
-   There is a fake_regs in setup.c that has to match pt_regs.*/
-
-struct pt_regs {
-	unsigned long  r8;		/* r8-r15 Caller-saved GP registers */
-	unsigned long  r9;
-	unsigned long  r10;
-	unsigned long  r11;
-	unsigned long  r12;
-	unsigned long  r13;
-	unsigned long  r14;
-	unsigned long  r15;
-	unsigned long  r1;		/* Assembler temporary */
-	unsigned long  r2;		/* Retval LS 32bits */
-	unsigned long  r3;		/* Retval MS 32bits */
-	unsigned long  r4;		/* r4-r7 Register arguments */
-	unsigned long  r5;
-	unsigned long  r6;
-	unsigned long  r7;
-	unsigned long  orig_r2;		/* Copy of r2 ?? */
-	unsigned long  ra;		/* Return address */
-	unsigned long  fp;		/* Frame pointer */
-	unsigned long  sp;		/* Stack pointer */
-	unsigned long  gp;		/* Global pointer */
-	unsigned long  estatus;
-	unsigned long  ea;		/* Exception return address (pc) */
-	unsigned long  orig_r7;
-};
-
-/*
- * This is the extended stack used by signal handlers and the context
- * switcher: it's pushed after the normal "struct pt_regs".
- */
-struct switch_stack {
-	unsigned long  r16;		/* r16-r23 Callee-saved GP registers */
-	unsigned long  r17;
-	unsigned long  r18;
-	unsigned long  r19;
-	unsigned long  r20;
-	unsigned long  r21;
-	unsigned long  r22;
-	unsigned long  r23;
-	unsigned long  fp;
-	unsigned long  gp;
-	unsigned long  ra;
+/* User structures for general purpose registers.  */
+struct user_pt_regs {
+	__u32		regs[49];
 };
 
 #endif /* __ASSEMBLY__ */

arch/nios2/include/uapi/asm/sigcontext.h

@@ -15,14 +15,16 @@
  * details.
  */
 
-#ifndef _ASM_NIOS2_SIGCONTEXT_H
-#define _ASM_NIOS2_SIGCONTEXT_H
+#ifndef _UAPI__ASM_SIGCONTEXT_H
+#define _UAPI__ASM_SIGCONTEXT_H
 
-#include <asm/ptrace.h>
+#include <linux/types.h>
+
+#define MCONTEXT_VERSION 2
 
 struct sigcontext {
-	struct pt_regs regs;
-	unsigned long  sc_mask;	/* old sigmask */
+	int version;
+	unsigned long gregs[32];
 };
 
 #endif