Add gcc-4.6. Synced to @180989

Change-Id: Ie3676586e1d8e3c8cd9f07d022f450d05fa08439
svn://gcc.gnu.org/svn/gcc/branches/google/gcc-4_6-mobile

1 files changed, 86 insertions, 0 deletions

diff --git a/gcc-4.6/gcc/config/m68hc11/m68hc11-crt0.S b/gcc-4.6/gcc/config/m68hc11/m68hc11-crt0.S
new file mode 100644
index 000000000..429ab0f27
--- /dev/null
+++ b/gcc-4.6/gcc/config/m68hc11/m68hc11-crt0.S
@@ -0,0 +1,86 @@
+/* Startup code for M68HC11.
+   Copyright (C) 1999, 2000, 2002, 2008, 2009 Free Software Foundation, Inc.
+
+This file 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 3, or (at your option) any
+later version.
+
+This file 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.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+	
+;-----------------------------------------
+; startup code
+;-----------------------------------------
+
+#ifdef __HAVE_SHORT_INT__
+	.mode mshort
+#else
+	.mode mlong
+#endif
+
+#if defined(__USE_RTC__) && defined(mc68hc12)
+	.macro jsr name
+	call	\name
+	.endm
+#endif
+;; 
+;; 
+;; The linker concatenate the .install* sections in the following order:
+;; 
+;; .install0	Setup the stack pointer
+;; .install1	Place holder for applications
+;; .install2	Optional installation of data section in memory
+;; .install3	Place holder for applications
+;; .install4	Invokes the main
+;; 
+	.sect   .install0,"ax",@progbits
+	.globl _start
+
+_start:
+;;
+;; At this step, the stack is not initialized and interrupts are masked.
+;; Applications only have 64 cycles to initialize some registers.
+;;
+;; To have a generic/configurable startup, initialize the stack to
+;; the end of some memory region.  The _stack symbol is defined by
+;; the linker.
+;;
+	lds	#_stack
+	
+	.sect	.install2,"ax",@progbits
+;;
+;; Call a specific initialization operation.  The default is empty.
+;; It can be overridden by applications.  It is intended to initialize
+;; the 68hc11 registers.  Function prototype is:
+;; 
+;;	int __premain(void);
+;; 
+	jsr	__premain
+	
+;;
+;; 
+;;
+	.sect	.install4,"ax",@progbits
+	jsr     main
+fatal:
+	jsr	exit
+	bra fatal
+
+;-----------------------------------------
+; end startup code
+;-----------------------------------------
+;; Force loading of data section mapping and bss clear
+	.2byte	__map_data_section
+	.2byte  __init_bss_section