From 5610aacaad0d779f48e13ebf9b55a3bbdb22c4d8 Mon Sep 17 00:00:00 2001
From: "Dmitry V. Levin" <ldv@altlinux.org>
Date: Fri, 10 Mar 2017 19:26:54 +0000
Subject: [PATCH] metag: export metag_sp_ptr

Export SP register for later use by get_rt_sigframe_addr.

* linux/metag/arch_regs.h: New file.
* Makefile.am (EXTRA_DIST): Add it.
* linux/metag/arch_regs.c (metag_sp_ptr): New variable.
---
 Makefile.am             | 1 +
 linux/metag/arch_regs.c | 1 +
 linux/metag/arch_regs.h | 1 +
 3 files changed, 3 insertions(+)
 create mode 100644 linux/metag/arch_regs.h

diff --git a/Makefile.am b/Makefile.am
index f522aae7..2ab8bcf1 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -468,6 +468,7 @@ EXTRA_DIST =				\
 	linux/m68k/syscallent.h		\
 	linux/m68k/userent.h		\
 	linux/metag/arch_regs.c		\
+	linux/metag/arch_regs.h		\
 	linux/metag/get_error.c		\
 	linux/metag/get_scno.c		\
 	linux/metag/get_syscall_args.c	\
diff --git a/linux/metag/arch_regs.c b/linux/metag/arch_regs.c
index e9f0d78a..5944723a 100644
--- a/linux/metag/arch_regs.c
+++ b/linux/metag/arch_regs.c
@@ -1,3 +1,4 @@
 static struct user_gp_regs metag_regs;
+unsigned long *const metag_sp_ptr = &metag_regs.ax[0][0];
 #define ARCH_REGS_FOR_GETREGSET metag_regs
 #define ARCH_PC_REG metag_regs.pc
diff --git a/linux/metag/arch_regs.h b/linux/metag/arch_regs.h
new file mode 100644
index 00000000..3344c92b
--- /dev/null
+++ b/linux/metag/arch_regs.h
@@ -0,0 +1 @@
+extern unsigned long *const metag_sp_ptr;