From c2f02da21a3f37f0878554eebc785e04fdc4e128 Mon Sep 17 00:00:00 2001
From: Daniel Hellstrom <daniel@gaisler.com>
Date: Fri, 28 Mar 2008 09:47:00 +0100
Subject: SPARC: Added generic support for SPARC architecture.

Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
---
 examples/Makefile  |  3 +++
 examples/sparc.lds | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 examples/stubs.c   | 16 ++++++++++++++
 3 files changed, 80 insertions(+)
 create mode 100644 examples/sparc.lds

(limited to 'examples')

diff --git a/examples/Makefile b/examples/Makefile
index c5d629b68a..66b354daaf 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -69,6 +69,9 @@ ifeq ($(ARCH),sh)
 LOAD_ADDR = 0x8C000000
 endif
 
+ifeq ($(ARCH),sparc)
+LOAD_ADDR = 0x00000000 -L $(gcclibdir) -T sparc.lds
+endif
 
 include $(TOPDIR)/config.mk
 
diff --git a/examples/sparc.lds b/examples/sparc.lds
new file mode 100644
index 0000000000..75925449ed
--- /dev/null
+++ b/examples/sparc.lds
@@ -0,0 +1,61 @@
+/*
+ * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+
+OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparc")
+OUTPUT_ARCH(sparc)
+ENTRY(_start)
+
+SECTIONS
+{
+	.text :
+	{
+	  *(.text)
+	}
+	__text_end = .;
+
+	. = ALIGN(4);
+	.rodata :
+	{
+		*(.rodata)
+	}
+	__rodata_end = .;
+
+	. = ALIGN(4);
+	.data :
+	{
+		*(.data)
+	}
+	. = ALIGN(4);
+	__data_end = .;
+
+	__bss_start = .;
+	. = ALIGN(4);
+	.bss :
+	{
+		*(.bss)
+	}
+	. = ALIGN(4);
+	__bss_end = .;
+	_end = .;
+}
diff --git a/examples/stubs.c b/examples/stubs.c
index b9dbcf9065..ec5353216b 100644
--- a/examples/stubs.c
+++ b/examples/stubs.c
@@ -167,6 +167,22 @@ gd_t *global_data;
 		"	nop\n"				\
 		"	nop\n"				\
 		: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r1");
+#elif defined(CONFIG_SPARC)
+/*
+ * g7 holds the pointer to the global_data. g1 is call clobbered.
+ */
+#define EXPORT_FUNC(x)					\
+	asm volatile(					\
+"	.globl\t" #x "\n"				\
+#x ":\n"						\
+"	set %0, %%g1\n"					\
+"	or %%g1, %%g7, %%g1\n"				\
+"	ld [%%g1], %%g1\n"				\
+"	ld [%%g1 + %1], %%g1\n"				\
+"	call %%g1\n"					\
+"	nop\n"						\
+	: : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "g1" );
+
 #else
 #error stubs definition missing for this architecture
 #endif
-- 
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