obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
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files in the upstream repository.

1 files changed, 289 insertions, 0 deletions

diff --git a/gcc/config/rs6000/eabi.asm b/gcc/config/rs6000/eabi.asm
new file mode 100644
index 000000000..292d88e50
--- /dev/null
+++ b/gcc/config/rs6000/eabi.asm
@@ -0,0 +1,289 @@
+/*
+ * Special support for eabi and SVR4
+ *
+ *   Copyright (C) 1995, 1996, 1998, 2000, 2001, 2008, 2009
+ *   Free Software Foundation, Inc.
+ *   Written By Michael Meissner
+ * 
+ * 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/>.
+ */ 
+
+/* Do any initializations needed for the eabi environment */
+
+	.section ".text"
+	#include "ppc-asm.h"
+
+#ifndef __powerpc64__
+
+	 .section ".got2","aw"
+	.align	2
+.LCTOC1 = . /* +32768 */
+
+/* Table of addresses */
+.Ltable = .-.LCTOC1
+	.long	.LCTOC1				/* address we are really at */
+
+.Lsda = .-.LCTOC1
+	.long	_SDA_BASE_			/* address of the first small data area */
+
+.Lsdas = .-.LCTOC1
+	.long	__SDATA_START__			/* start of .sdata/.sbss section */
+
+.Lsdae = .-.LCTOC1
+	.long	__SBSS_END__			/* end of .sdata/.sbss section */
+
+.Lsda2 = .-.LCTOC1
+	.long	_SDA2_BASE_			/* address of the second small data area */
+
+.Lsda2s = .-.LCTOC1
+	.long	__SDATA2_START__		/* start of .sdata2/.sbss2 section */
+
+.Lsda2e = .-.LCTOC1
+	.long	__SBSS2_END__			/* end of .sdata2/.sbss2 section */
+
+#ifdef _RELOCATABLE
+.Lgots = .-.LCTOC1
+	.long	__GOT_START__			/* Global offset table start */
+
+.Lgotm1 = .-.LCTOC1
+	.long	_GLOBAL_OFFSET_TABLE_-4		/* end of GOT ptrs before BLCL + 3 reserved words */
+
+.Lgotm2 = .-.LCTOC1
+	.long	_GLOBAL_OFFSET_TABLE_+12	/* start of GOT ptrs after BLCL + 3 reserved words */
+
+.Lgote = .-.LCTOC1
+	.long	__GOT_END__			/* Global offset table end */
+
+.Lgot2s = .-.LCTOC1
+	.long	__GOT2_START__			/* -mrelocatable GOT pointers start */
+
+.Lgot2e = .-.LCTOC1
+	.long	__GOT2_END__			/* -mrelocatable GOT pointers end */
+
+.Lfixups = .-.LCTOC1
+	.long	__FIXUP_START__			/* start of .fixup section */
+
+.Lfixupe = .-.LCTOC1
+	.long	__FIXUP_END__			/* end of .fixup section */
+
+.Lctors = .-.LCTOC1
+	.long	__CTOR_LIST__			/* start of .ctor section */
+
+.Lctore = .-.LCTOC1
+	.long	__CTOR_END__			/* end of .ctor section */
+
+.Ldtors = .-.LCTOC1
+	.long	__DTOR_LIST__			/* start of .dtor section */
+
+.Ldtore = .-.LCTOC1
+	.long	__DTOR_END__			/* end of .dtor section */
+
+.Lexcepts = .-.LCTOC1
+	.long	__EXCEPT_START__		/* start of .gcc_except_table section */
+
+.Lexcepte = .-.LCTOC1
+	.long	__EXCEPT_END__			/* end of .gcc_except_table section */
+
+.Linit = .-.LCTOC1
+	.long	.Linit_p			/* address of variable to say we've been called */
+
+	.text
+	.align	2
+.Lptr:
+	.long	.LCTOC1-.Laddr			/* PC relative pointer to .got2 */
+#endif
+
+	.data
+	.align	2
+.Linit_p:
+	.long	0
+
+	.text
+
+FUNC_START(__eabi)
+
+/* Eliminate -mrelocatable code if not -mrelocatable, so that this file can
+   be assembled with other assemblers than GAS.  */
+
+#ifndef _RELOCATABLE
+	addis	10,0,.Linit_p@ha		/* init flag */
+	addis	11,0,.LCTOC1@ha			/* load address of .LCTOC1 */
+	lwz	9,.Linit_p@l(10)		/* init flag */
+	addi	11,11,.LCTOC1@l
+	cmplwi	2,9,0				/* init flag != 0? */
+	bnelr	2				/* return now, if we've been called already */
+	stw	1,.Linit_p@l(10)		/* store a nonzero value in the done flag */
+
+#else /* -mrelocatable */
+	mflr	0
+	bl	.Laddr				/* get current address */
+.Laddr:
+	mflr	12				/* real address of .Laddr */
+	lwz	11,(.Lptr-.Laddr)(12)		/* linker generated address of .LCTOC1 */
+	add	11,11,12			/* correct to real pointer */
+	lwz	12,.Ltable(11)			/* get linker's idea of where .Laddr is */
+	lwz	10,.Linit(11)			/* address of init flag */
+	subf.	12,12,11			/* calculate difference */
+	lwzx	9,10,12				/* done flag */
+	cmplwi	2,9,0				/* init flag != 0? */
+	mtlr	0				/* restore in case branch was taken */
+	bnelr	2				/* return now, if we've been called already */
+	stwx	1,10,12				/* store a nonzero value in the done flag */
+	beq+	0,.Lsdata			/* skip if we don't need to relocate */
+
+/* We need to relocate the .got2 pointers.  */
+
+	lwz	3,.Lgot2s(11)			/* GOT2 pointers start */
+	lwz	4,.Lgot2e(11)			/* GOT2 pointers end */
+	add	3,12,3				/* adjust pointers */
+	add	4,12,4
+	bl	FUNC_NAME(__eabi_convert)	/* convert pointers in .got2 section */
+
+/* Fixup the .ctor section for static constructors */
+
+	lwz	3,.Lctors(11)			/* constructors pointers start */
+	lwz	4,.Lctore(11)			/* constructors pointers end */
+	bl	FUNC_NAME(__eabi_convert)	/* convert constructors */
+
+/* Fixup the .dtor section for static destructors */
+
+	lwz	3,.Ldtors(11)			/* destructors pointers start */
+	lwz	4,.Ldtore(11)			/* destructors pointers end */
+	bl	FUNC_NAME(__eabi_convert)	/* convert destructors */
+
+/* Fixup the .gcc_except_table section for G++ exceptions */
+
+	lwz	3,.Lexcepts(11)			/* exception table pointers start */
+	lwz	4,.Lexcepte(11)			/* exception table pointers end */
+	bl	FUNC_NAME(__eabi_convert)	/* convert exceptions */
+
+/* Fixup the addresses in the GOT below _GLOBAL_OFFSET_TABLE_-4 */
+
+	lwz	3,.Lgots(11)			/* GOT table pointers start */
+	lwz	4,.Lgotm1(11)			/* GOT table pointers below _GLOBAL_OFFSET_TABLE-4 */
+	bl	FUNC_NAME(__eabi_convert)	/* convert lower GOT */
+
+/* Fixup the addresses in the GOT above _GLOBAL_OFFSET_TABLE_+12 */
+
+	lwz	3,.Lgotm2(11)			/* GOT table pointers above _GLOBAL_OFFSET_TABLE+12 */
+	lwz	4,.Lgote(11)			/* GOT table pointers end */
+	bl	FUNC_NAME(__eabi_convert)	/* convert lower GOT */
+
+/* Fixup any user initialized pointers now (the compiler drops pointers to */
+/* each of the relocs that it does in the .fixup section).  */
+
+.Lfix:
+	lwz	3,.Lfixups(11)			/* fixup pointers start */
+	lwz	4,.Lfixupe(11)			/* fixup pointers end */
+	bl	FUNC_NAME(__eabi_uconvert)	/* convert user initialized pointers */
+
+.Lsdata:
+	mtlr	0				/* restore link register */
+#endif /* _RELOCATABLE */
+
+/* Only load up register 13 if there is a .sdata and/or .sbss section */
+	lwz	3,.Lsdas(11)			/* start of .sdata/.sbss section */
+	lwz	4,.Lsdae(11)			/* end of .sdata/.sbss section */
+	cmpw	1,3,4				/* .sdata/.sbss section non-empty? */
+	beq-	1,.Lsda2l			/* skip loading r13 */
+
+	lwz	13,.Lsda(11)			/* load r13 with _SDA_BASE_ address */
+
+/* Only load up register 2 if there is a .sdata2 and/or .sbss2 section */
+
+.Lsda2l:	
+	lwz	3,.Lsda2s(11)			/* start of .sdata/.sbss section */
+	lwz	4,.Lsda2e(11)			/* end of .sdata/.sbss section */
+	cmpw	1,3,4				/* .sdata/.sbss section non-empty? */
+	beq+	1,.Ldone			/* skip loading r2 */
+
+	lwz	2,.Lsda2(11)			/* load r2 with _SDA2_BASE_ address */
+
+/* Done adjusting pointers, return by way of doing the C++ global constructors.  */
+
+.Ldone:
+	b	FUNC_NAME(__init)	/* do any C++ global constructors (which returns to caller) */
+FUNC_END(__eabi)
+
+/* Special subroutine to convert a bunch of pointers directly.
+   r0		has original link register
+   r3		has low pointer to convert
+   r4		has high pointer to convert
+   r5 .. r10	are scratch registers
+   r11		has the address of .LCTOC1 in it.
+   r12		has the value to add to each pointer
+   r13 .. r31	are unchanged */
+#ifdef _RELOCATABLE
+FUNC_START(__eabi_convert)
+        cmplw	1,3,4				/* any pointers to convert? */
+        subf	5,3,4				/* calculate number of words to convert */
+        bclr	4,4				/* return if no pointers */
+
+        srawi	5,5,2
+	addi	3,3,-4				/* start-4 for use with lwzu */
+        mtctr	5
+
+.Lcvt:
+	lwzu	6,4(3)				/* pointer to convert */
+	cmpwi	0,6,0
+	beq-	.Lcvt2				/* if pointer is null, don't convert */
+
+        add	6,6,12				/* convert pointer */
+        stw	6,0(3)
+.Lcvt2:
+        bdnz+	.Lcvt
+        blr
+
+FUNC_END(__eabi_convert)
+
+/* Special subroutine to convert the pointers the user has initialized.  The
+   compiler has placed the address of the initialized pointer into the .fixup
+   section.
+
+   r0		has original link register
+   r3		has low pointer to convert
+   r4		has high pointer to convert
+   r5 .. r10	are scratch registers
+   r11		has the address of .LCTOC1 in it.
+   r12		has the value to add to each pointer
+   r13 .. r31	are unchanged */
+	
+FUNC_START(__eabi_uconvert)
+        cmplw	1,3,4				/* any pointers to convert? */
+        subf	5,3,4				/* calculate number of words to convert */
+        bclr	4,4				/* return if no pointers */
+
+        srawi	5,5,2
+	addi	3,3,-4				/* start-4 for use with lwzu */
+        mtctr	5
+
+.Lucvt:
+	lwzu	6,4(3)				/* next pointer to pointer to convert */
+	add	6,6,12				/* adjust pointer */
+	lwz	7,0(6)				/* get the pointer it points to */
+	stw	6,0(3)				/* store adjusted pointer */
+	add	7,7,12				/* adjust */
+	stw	7,0(6)
+        bdnz+	.Lucvt
+        blr
+
+FUNC_END(__eabi_uconvert)
+#endif
+#endif