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
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 116 insertions, 0 deletions

diff --git a/gcc/config/mmix/crti.asm b/gcc/config/mmix/crti.asm
new file mode 100644
index 000000000..f5f4c5d68
--- /dev/null
+++ b/gcc/config/mmix/crti.asm
@@ -0,0 +1,116 @@
+/* Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+   Contributed by Hans-Peter Nilsson <hp@bitrange.com>
+
+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/>.  */
+
+% This is the crt0 equivalent for mmix-knuth-mmixware, for setting up
+% things for compiler-generated assembly-code and for setting up things
+% between where the simulator calls and main, and shutting things down on
+% the way back.  There's an actual crt0.o elsewhere, but that's a dummy.
+
+% This file and the GCC output are supposed to be *reasonably*
+% mmixal-compatible to enable people to re-use output with Knuth's mmixal.
+% However, forward references are used more freely: we are using the
+% binutils tools.  Users of mmixal beware; you will sometimes have to
+% re-order things or use temporary variables.
+
+% Users of mmixal will want to set up 8H and 9H to be .text and .data
+% respectively, so the compiler can switch between them pretending they're
+% segments.
+
+% This little treasure is here so the 32 lowest address bits of user data
+% will not be zero.  Because of truncation, that would cause testcase
+% gcc.c-torture/execute/980701-1.c to incorrectly fail.
+
+	.data	! mmixal:= 8H LOC Data_Segment
+	.p2align 3
+	LOC @+(8-@)@7
+	OCTA 2009
+
+	.text	! mmixal:= 9H LOC 8B; LOC #100
+	.global Main
+
+% The __Stack_start symbol is provided by the link script.
+stackpp	OCTA __Stack_start
+
+% "Main" is the magic symbol the simulator jumps to.  We want to go
+% on to "main".
+% We need to set rG explicitly to avoid hard-to-debug situations.
+Main	SETL	$255,32
+	PUT	rG,$255
+
+% Initialize the stack pointer.  It is supposedly made a global
+% zero-initialized (allowed to change) register in crtn.asm; we use the
+% explicit number.
+	GETA	$255,stackpp
+	LDOU	$254,$255,0
+
+% Make sure we get more than one mem, to simplify counting cycles.
+	LDBU	$255,$1,0
+	LDBU	$255,$1,1
+
+	PUSHJ	$2,_init
+
+#ifdef __MMIX_ABI_GNU__
+% Copy argc and argv from their initial position to argument registers
+% where necessary.
+	SET	$231,$0
+	SET	$232,$1
+#else
+% For the mmixware ABI, we need to move arguments.  The return value will
+% appear in $0.
+	SET	$2,$1
+	SET	$1,$0
+#endif
+
+	PUSHJ	$0,main
+	JMP	exit
+
+% Provide the first part of _init and _fini.  Save the return address on the
+% register stack.  We eventually ignore the return address of these
+% PUSHJ:s, so it doesn't matter that whether .init and .fini code calls
+% functions or where they store rJ.  We shouldn't get there, so die
+% (TRAP Halt) if that happens.
+
+	.section .init,"ax",@progbits
+	.global	_init
+_init:
+	GET	$0,:rJ
+	PUSHJ	$1,0F
+	SETL	$255,255
+	TRAP	0,0,0
+0H	IS	@
+
+% Register _fini to be executed as the last atexit function.
+#ifdef __MMIX_ABI_GNU__
+	GETA	$231,_fini
+#else
+	GETA	$1,_fini
+#endif
+	PUSHJ	$0,atexit
+
+	.section .fini,"ax",@progbits
+	.global	_fini
+_fini:
+	GET	$0,:rJ
+	PUSHJ	$1,0F
+	SETL	$255,255
+	TRAP	0,0,0
+0H	IS	@