2002-09-17 Steven Munroe <sjmunroe@us.ibm.com>

	Ported to PowerPC64 running Linux.
	* sysdeps/powerpc/powerpc64/Dist: New file.
	* sysdeps/powerpc/powerpc64/Implies: New file.
	* sysdeps/powerpc/powerpc64/Makefile: New file.
	* sysdeps/powerpc/powerpc64/__longjmp.S: New file.
	* sysdeps/powerpc/powerpc64/atomicity.h: New file.
	* sysdeps/powerpc/powerpc64/backtrace.c: New file.
	* sysdeps/powerpc/powerpc64/bp-asm.h: New file.
	* sysdeps/powerpc/powerpc64/bsd-_setjmp.S: New file.
	* sysdeps/powerpc/powerpc64/bsd-setjmp.S: New file.
	* sysdeps/powerpc/powerpc64/dl-dtprocnum.h: New file.
	* sysdeps/powerpc/powerpc64/dl-lookupcfg.h: New file.
	* sysdeps/powerpc/powerpc64/dl-machine.c: New file.
	* sysdeps/powerpc/powerpc64/dl-machine.h: New file.
	* sysdeps/powerpc/powerpc64/memset.S: New file.
	* sysdeps/powerpc/powerpc64/ppc-mcount.S: New file.
	* sysdeps/powerpc/powerpc64/register-dump.h: New file.
	* sysdeps/powerpc/powerpc64/setjmp.S: New file.
	* sysdeps/powerpc/powerpc64/stpcpy.S: New file.
	* sysdeps/powerpc/powerpc64/strchr.S: New file.
	* sysdeps/powerpc/powerpc64/strcmp.S: New file.
	* sysdeps/powerpc/powerpc64/strcpy.S: New file.
	* sysdeps/powerpc/powerpc64/strlen.S: New file.
	* sysdeps/powerpc/powerpc64/elf/bzero.S: New file.
	* sysdeps/powerpc/powerpc64/elf/start.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: New file.
	* sysdeps/powerpc/powerpc64/fpu/s_copysignf.S: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions: New File.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/glob64.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/socket.S: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: New file.

1 files changed, 121 insertions, 0 deletions

diff --git a/sysdeps/powerpc/powerpc64/stpcpy.S b/sysdeps/powerpc/powerpc64/stpcpy.S
new file mode 100644
index 0000000000..c842111ca5
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/stpcpy.S
@@ -0,0 +1,121 @@
+/* Optimized stpcpy implementation for PowerPC64.
+   Copyright (C) 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#include <bp-sym.h>
+#include <bp-asm.h>
+
+/* See strlen.s for comments on how the end-of-string testing works.  */
+
+/* char * [r3] stpcpy (char *dest [r3], const char *src [r4])  */
+
+EALIGN (BP_SYM (__stpcpy), 4, 0)
+
+#define rTMP	r0
+#define rRTN	r3
+#if __BOUNDED_POINTERS__
+# define rDEST	r4		/* pointer to previous word in dest */
+# define rSRC	r5		/* pointer to previous word in src */
+# define rLOW	r11
+# define rHIGH	r12
+#else
+# define rDEST	r3		/* pointer to previous word in dest */
+# define rSRC	r4		/* pointer to previous word in src */
+#endif
+#define rWORD	r6		/* current word from src */
+#define rFEFE	r7		/* 0xfefefeff */
+#define r7F7F	r8		/* 0x7f7f7f7f */
+#define rNEG	r9		/* ~(word in src | 0x7f7f7f7f) */
+#define rALT	r10		/* alternate word from src */
+
+	CHECK_BOUNDS_LOW (rSRC, rLOW, rHIGH)
+	CHECK_BOUNDS_LOW (rDEST, rLOW, rHIGH)
+	STORE_RETURN_BOUNDS (rLOW, rHIGH)
+
+	or	rTMP, rSRC, rDEST
+	clrldi.	rTMP, rTMP, 62
+	addi	rDEST, rDEST, -4
+	bne	L(unaligned)
+
+	lis	rFEFE, -0x101
+	lis	r7F7F, 0x7f7f
+	lwz	rWORD, 0(rSRC)
+	addi	rFEFE, rFEFE, -0x101
+	addi	r7F7F, r7F7F, 0x7f7f
+	b	L(g2)
+
+L(g0):	lwzu	rALT, 4(rSRC)
+	stwu	rWORD, 4(rDEST)
+	add	rTMP, rFEFE, rALT
+	nor	rNEG, r7F7F, rALT
+	and.	rTMP, rTMP, rNEG
+	bne-	L(g1)
+	lwzu	rWORD, 4(rSRC)
+	stwu	rALT, 4(rDEST)
+L(g2):	add	rTMP, rFEFE, rWORD
+	nor	rNEG, r7F7F, rWORD
+	and.	rTMP, rTMP, rNEG
+	beq+	L(g0)
+
+	mr	rALT, rWORD
+/* We've hit the end of the string.  Do the rest byte-by-byte.  */
+L(g1):	rlwinm.	rTMP, rALT, 8, 24, 31
+	stbu	rTMP, 4(rDEST)
+	beqlr-
+	rlwinm.	rTMP, rALT, 16, 24, 31
+	stbu	rTMP, 1(rDEST)
+	beqlr-
+	rlwinm.	rTMP, rALT, 24, 24, 31
+	stbu	rTMP, 1(rDEST)
+	beqlr-
+	stbu	rALT, 1(rDEST)
+	CHECK_BOUNDS_HIGH (rDEST, rHIGH, twlgt)
+	STORE_RETURN_VALUE (rDEST)
+	blr
+
+/* Oh well.  In this case, we just do a byte-by-byte copy.  */
+	.align 4
+	nop
+L(unaligned):
+	lbz	rWORD, 0(rSRC)
+	addi	rDEST, rDEST, 3
+	cmpwi	rWORD, 0
+	beq-	L(u2)
+
+L(u0):	lbzu	rALT, 1(rSRC)
+	stbu	rWORD, 1(rDEST)
+	cmpwi	rALT, 0
+	beq-	L(u1)
+	nop		/* Let 601 load start of loop.  */
+	lbzu	rWORD, 1(rSRC)
+	stbu	rALT, 1(rDEST)
+	cmpwi	rWORD, 0
+	bne+	L(u0)
+L(u2):	stbu	rWORD, 1(rDEST)
+	CHECK_BOUNDS_HIGH (rDEST, rHIGH, twlgt)
+	STORE_RETURN_VALUE (rDEST)
+	blr
+L(u1):	stbu	rALT, 1(rDEST)
+	CHECK_BOUNDS_HIGH (rDEST, rHIGH, twlgt)
+	STORE_RETURN_VALUE (rDEST)
+	blr
+END (BP_SYM (__stpcpy))
+
+weak_alias (BP_SYM (__stpcpy), BP_SYM (stpcpy))
+libc_hidden_def (__stpcpy)