From: David S. Miller <davem@davemloft.net>
Date: Thu, 7 Feb 2008 12:19:34 +0000 (-0800)
Subject: [SPARC64]: Use regsets for ELF core dumping.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3389742f3c346d9ef5fb46e7baa04972bdd6d151;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[SPARC64]: Use regsets for ELF core dumping.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/binfmt_elf32.c b/arch/sparc64/kernel/binfmt_elf32.c
index 1587a29a4b0..d141300e76b 100644
--- a/arch/sparc64/kernel/binfmt_elf32.c
+++ b/arch/sparc64/kernel/binfmt_elf32.c
@@ -1,7 +1,7 @@
 /*
  * binfmt_elf32.c: Support 32-bit Sparc ELF binaries on Ultra.
  *
- * Copyright (C) 1995, 1996, 1997, 1998 David S. Miller	(davem@davemloft.net)
+ * Copyright (C) 1995, 1996, 1997, 1998, 2008 David S. Miller (davem@davemloft.net)
  * Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek	(jj@ultra.linux.cz)
  */
 
@@ -9,13 +9,6 @@
 #define ELF_CLASS		ELFCLASS32
 #define ELF_DATA		ELFDATA2MSB;
 
-/* For the most part we present code dumps in the format
- * Solaris does.
- */
-typedef unsigned int elf_greg_t;
-#define ELF_NGREG 38
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
 /* Format is:
  * 	G0 --> G7
  *	O0 --> O7
@@ -23,25 +16,9 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  *	I0 --> I7
  *	PSR, PC, nPC, Y, WIM, TBR
  */
-#include <asm/psrcompat.h>
-#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)	\
-do {	unsigned int *dest = &(__elf_regs[0]);		\
-	struct pt_regs *src = (__pt_regs);		\
-	unsigned int __user *sp;			\
-	int i;						\
-	for(i = 0; i < 16; i++)				\
-		dest[i] = (unsigned int) src->u_regs[i];\
-	/* Don't try this at home kids... */		\
-	sp = (unsigned int __user *) (src->u_regs[14] &	\
-		0x00000000fffffffc);			\
-	for(i = 0; i < 16; i++)				\
-		__get_user(dest[i+16], &sp[i]);		\
-	dest[32] = tstate_to_psr(src->tstate);		\
-	dest[33] = (unsigned int) src->tpc;		\
-	dest[34] = (unsigned int) src->tnpc;		\
-	dest[35] = src->y;				\
-	dest[36] = dest[37] = 0; /* XXX */		\
-} while(0);
+typedef unsigned int elf_greg_t;
+#define ELF_NGREG 38
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 
 typedef struct {
 	union {
diff --git a/include/asm-sparc64/elf.h b/include/asm-sparc64/elf.h
index 8653e866500..217d768cf7d 100644
--- a/include/asm-sparc64/elf.h
+++ b/include/asm-sparc64/elf.h
@@ -72,6 +72,8 @@
 #define HWCAP_SPARC_BLKINIT	64
 #define HWCAP_SPARC_N2		128
 
+#define CORE_DUMP_USE_REGSET
+
 /*
  * These are used to set parameters in the core dumps.
  */
@@ -80,10 +82,6 @@
 #define ELF_CLASS		ELFCLASS64
 #define ELF_DATA		ELFDATA2MSB
 
-typedef unsigned long elf_greg_t;
-
-#define ELF_NGREG 36
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 /* Format of 64-bit elf_gregset_t is:
  * 	G0 --> G7
  * 	O0 --> O7
@@ -94,24 +92,9 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  *	TNPC
  *	Y
  */
-#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)	\
-do {	unsigned long *dest = &(__elf_regs[0]);		\
-	struct pt_regs *src = (__pt_regs);		\
-	unsigned long __user *sp;			\
-	int i;						\
-	for(i = 0; i < 16; i++)				\
-		dest[i] = src->u_regs[i];		\
-	/* Don't try this at home kids... */		\
-	sp = (unsigned long __user *)			\
-	 ((src->u_regs[14] + STACK_BIAS)		\
-	  & 0xfffffffffffffff8UL);			\
-	for(i = 0; i < 16; i++)				\
-		__get_user(dest[i+16], &sp[i]);		\
-	dest[32] = src->tstate;				\
-	dest[33] = src->tpc;				\
-	dest[34] = src->tnpc;				\
-	dest[35] = src->y;				\
-} while (0);
+typedef unsigned long elf_greg_t;
+#define ELF_NGREG 36
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 
 typedef struct {
 	unsigned long	pr_regs[32];
@@ -121,9 +104,6 @@ typedef struct {
 } elf_fpregset_t;
 #endif
 
-#define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs)	\
-	({ ELF_CORE_COPY_REGS((*(__elf_regs)), task_pt_regs(__tsk)); 1; })
-
 /*
  * This is used to ensure we don't load something for the wrong architecture.
  */