From: Dave Kleikamp <dave.kleikamp@oracle.com>
Date: Wed, 21 May 2014 18:58:40 +0000 (-0500)
Subject: sparc64: add sparc64_elf_core_copy_regs
X-Git-Tag: v4.1.12-92~147^2~3^2~20
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d818bbae24aa789fc9f1fbbfc8832506321ceb92;p=users%2Fjedix%2Flinux-maple.git

sparc64: add sparc64_elf_core_copy_regs

original patch by Bob Picco

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Cc: Bob Picco <bob.picco@oracle.com>
---

diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
index 3b102c340b138..684e31dbf9f46 100644
--- a/arch/sparc/include/asm/elf_64.h
+++ b/arch/sparc/include/asm/elf_64.h
@@ -119,6 +119,9 @@
 typedef unsigned long elf_greg_t;
 #define ELF_NGREG 36
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+extern void sparc64_elf_core_copy_regs(elf_gregset_t dst, struct pt_regs *regs);
+#define ELF_CORE_COPY_REGS(DEST, REGS)			\
+	sparc64_elf_core_copy_regs((DEST), (REGS));
 
 typedef struct {
 	unsigned long	pr_regs[32];
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 46a59643bb1ce..92a641b520061 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -777,3 +777,13 @@ unsigned long get_wchan(struct task_struct *task)
 out:
 	return ret;
 }
+
+void sparc64_elf_core_copy_regs(elf_gregset_t dst, struct pt_regs *regs)
+{
+	memcpy(&dst[0], regs->u_regs, 8 * sizeof(unsigned long));
+	memcpy(&dst[24],  &regs->u_regs[8], 8 * sizeof(unsigned long));
+	dst[32] = regs->tstate;
+	dst[33] = regs->tpc;
+	dst[34] = regs->tnpc;
+	dst[35] = regs->y;
+}