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authorUlrich Drepper <drepper@redhat.com>2002-09-05 10:28:51 +0000
committerUlrich Drepper <drepper@redhat.com>2002-09-05 10:28:51 +0000
commit92b27c7470ca2844e4e1265746cb56ad1f664df3 (patch)
tree989027a0a57d82034206d3e2bbb7a4151dd2e24f /sysdeps/powerpc/powerpc32/strcpy.S
parent75e4a282218ce382d0fb3ff1ffef2108dd84fcce (diff)
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Update.
2002-07-29  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/__longjmp.S: Moved to...
	* sysdeps/powerpc/powerpc32/__longjmp.S: ...here.
	* sysdeps/powerpc/add_n.S: Moved to...
	* sysdeps/powerpc/powerpc32/add_n.S: ...here.
	* sysdeps/powerpc/addmul_1.S: Moved to...
	* sysdeps/powerpc/powerpc32/addmul_1.S: ...here.
	* sysdeps/powerpc/atomicity.h: Moved to...
	* sysdeps/powerpc/powerpc32/atomicity.h: ...here.
	* sysdeps/powerpc/backtrace.c: Moved to...
	* sysdeps/powerpc/powerpc32/backtrace.c: ...here.
	* sysdeps/powerpc/bp-asm.h: Moved to...
	* sysdeps/powerpc/powerpc32/bp-asm.h: ...here.
	* sysdeps/powerpc/bsd-_setjmp.S: Moved to...
	* sysdeps/powerpc/powerpc32/bsd-_setjmp.S: ...here.
	* sysdeps/powerpc/bsd-setjmp.S: Moved to...
	* sysdeps/powerpc/powerpc32/bsd-setjmp.S: ...here.
	* sysdeps/powerpc/dl-machine.c: Moved to...
	* sysdeps/powerpc/powerpc32/dl-machine.c: ...here.
	* sysdeps/powerpc/dl-machine.h: Moved to...
	* sysdeps/powerpc/powerpc32/dl-machine.h: ...here.
	* sysdeps/powerpc/dl-start.S: Moved to...
	* sysdeps/powerpc/powerpc32/dl-start.S: ...here.
	* sysdeps/powerpc/gprrest0.S: Moved to...
	* sysdeps/powerpc/powerpc32/gprrest0.S: ...here.
	* sysdeps/powerpc/gprrest1.S: Moved to...
	* sysdeps/powerpc/powerpc32/gprrest1.S: ...here.
	* sysdeps/powerpc/gprsave0.S: Moved to...
	* sysdeps/powerpc/powerpc32/gprsave0.S: ...here.
	* sysdeps/powerpc/gprsave1.S: Moved to...
	* sysdeps/powerpc/powerpc32/gprsave1.S: ...here.
	* sysdeps/powerpc/lshift.S: Moved to...
	* sysdeps/powerpc/powerpc32/lshift.S: ...here.
	* sysdeps/powerpc/memset.S: Moved to...
	* sysdeps/powerpc/powerpc32/memset.S: ...here.
	* sysdeps/powerpc/mul_1.S: Moved to...
	* sysdeps/powerpc/powerpc32/mul_1.S: ...here.
	* sysdeps/powerpc/ppc-mcount.S: Moved to...
	* sysdeps/powerpc/powerpc32/ppc-mcount.S: ...here.
	* sysdeps/powerpc/register-dump.h: Moved to...
	* sysdeps/powerpc/powerpc32/register-dump.h: ...here.
	* sysdeps/powerpc/rshift.S: Moved to...
	* sysdeps/powerpc/powerpc32/rshift.S: ...here.
	* sysdeps/powerpc/setjmp.S: Moved to...
	* sysdeps/powerpc/powerpc32/setjmp.S: ...here.
	* sysdeps/powerpc/stpcpy.S: Moved to...
	* sysdeps/powerpc/powerpc32/stpcpy.S: ...here.
	* sysdeps/powerpc/strchr.S: Moved to...
	* sysdeps/powerpc/powerpc32/strchr.S: ...here.
	* sysdeps/powerpc/strcmp.S: Moved to...
	* sysdeps/powerpc/powerpc32/strcmp.S: ...here.
	* sysdeps/powerpc/strcpy.S: Moved to...
	* sysdeps/powerpc/powerpc32/strcpy.S: ...here.
	* sysdeps/powerpc/strlen.S: Moved to...
	* sysdeps/powerpc/powerpc32/strlen.S: ...here.
	* sysdeps/powerpc/sub_n.S: Moved to...
	* sysdeps/powerpc/powerpc32/sub_n.S: ...here.
	* sysdeps/powerpc/submul_1.S: Moved to...
	* sysdeps/powerpc/powerpc32/submul_1.S: ...here.
	* sysdeps/powerpc/elf/bzero.S: Moved to...
	* sysdeps/powerpc/powerpc32/elf/bzero.S: ...here.
	* sysdeps/powerpc/elf/start.S: Moved to...
	* sysdeps/powerpc/powerpc32/elf/start.S: ...here.
	* sysdeps/powerpc/fpu/__longjmp.S: Moved to...
	* sysdeps/powerpc/powerpc32/fpu/__longjmp.S: ...here.
	* sysdeps/powerpc/fpu/fprrest.S: Moved to...
	* sysdeps/powerpc/powerpc32/fpu/fprrest.S: ...here.
	* sysdeps/powerpc/fpu/fprsave.S: Moved to...
	* sysdeps/powerpc/powerpc32/fpu/fprsave.S: ...here.
	* sysdeps/powerpc/fpu/setjmp.S: Moved to...
	* sysdeps/powerpc/powerpc32/fpu/setjmp.S: ...here.
	* sysdeps/powerpc/fpu/s_copysign.S: Moved to...
	* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: ...here.
	* sysdeps/powerpc/fpu/s_copysignf.S: Moved to...
	* sysdeps/powerpc/powerpc32/fpu/s_copysignf.S: ...here.
	* sysdeps/unix/sysv/linux/powerpc/brk.S: Moved to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/brk.S: ...here.
	* sysdeps/unix/sysv/linux/powerpc/clone.S: Moved to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S: ...here.
	* sysdeps/unix/sysv/linux/powerpc/glob64.c: Moved to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/glob64.c: ...here.
	* sysdeps/unix/sysv/linux/powerpc/kernel_stat.h: Moved to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/kernel_stat.h: ...here.
	* sysdeps/unix/sysv/linux/powerpc/socket.S: Moved to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/socket.S: ...here.
	* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Moved to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: ...here.
	* sysdeps/unix/sysv/linux/powerpc/syscalls.list: Moved to...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list: ...here.
	Support PowerPC64.  Separate powerpc into powerpc/powerpc32 and
	powerpc/powerpc64.

2002-07-29  Steven Munroe  <sjmunroe@us.ibm.com>

	* FAQ.in: Add powerpc64 to supported targets list. Also state the
	minimum gcc version is 3.2
	* README: Add powerpc64 to supported targets list.
	* configure.in: Change machine=powerpc to machine=powerpc/powerpc32.
	Add powerpc64 and machine=powerpc/powerpc64.
	(HAVE_ASM_GLOBAL_DOT_NAME): Define if linux*powerpc/powerpc64*.
	* shlib-versions: Set DEFAULT version to 2.2.5 for powerpc64.
	* sysdeps/powerpc/Dist: Remove dl-machine.c, dl-start.S, ppc-mcount.S,
	gprsave1.S, gprsave0.S, gprrest1.S, and gprrest0.S.
	* sysdeps/powerpc/powerpc32/Dist: New file.
	* sysdeps/powerpc/Implies: Remove wordsize-32 and powerpc/soft-fp.
	* sysdeps/powerpc/powerpc32/Implies: New file.
	* sysdeps/powerpc/Makefile(cflags): Remove powerpc32 specific cflags.
	($(with-fp) = no): Move test to powerpc32/Makefile.
	($(subdir) = misc): Move to powerpc32/Makefile.
	($(build-shared) = yes): Move to powerpc32/Makefile.
	($(subdir) = csu): Move to powerpc32/Makefile.
	(sysdep-rtld-routines): Remove dl-start.  Moved these bits to ...
	* sysdeps/powerpc/powerpc32/Makefile: New file.
	* sysdeps/powerpc/Versions: Remove libgcc functions.
	* sysdeps/powerpc/powerpc32/Versions: New file.
	* sysdeps/powerpc/fpu/Makefile: Remove fprsave and fprrest.
	* sysdeps/powerpc/powerpc32/fpu/Makefile: New file.
	* sysdeps/unix/sysv/linux/configure.in (powerpc*):
	Set arch_minimum_kernel=2.4.19 for powerpc/powerpc64. Also set
	libc_cv_gcc_unwind_find_fde=yes only if !powerpc/powerpc64.
	($machine): Add powerpc/powerpc64 to if ... | for
	libc_cv_slibdir=/libc64.
	(powerpc*): Set ldd_rewrite_script.
	* sysdeps/unix/sysv/linux/powerpc/ldd-rewrite.sed: New file.
	* sysdeps/unix/sysv/linux/powerpc/Dist: Remove clone.S.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/Dist: New file.
	Add clone.S.
	* sysdeps/unix/sysv/linux/powerpc/Makefile: Remove oldgetrlimit64.
	* sysdeps/unix/sysv/linux/powerpc/Versions: Remove GLIBC_2.0
	functions.  Remove GLIBC_2.2 functions except getrlimit and
	setrlimit.  Moved them to ...
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions: New file.

2002-09-04  Ulrich Drepper  <drepper@redhat.com>

	* libio/tst-atime.c: Include <errno.h>.
	(do_test): Only perform fstatvfs check if ST_NOATIME is defined.

2002-09-03  Isamu Hasegawa  <isamu@yamato.ibm.com>

	* posix/regcomp.c (regcomp): Append "__restrict" modifier to avoid
	warnings of some compilers.
	(build_collating_symbol): Change the type of characters from
	"unsigned char"	to "char", and append a cast to "char*" pointer in
	array subscript.
	(build_collating_symbol): Likewise.
	(build_equiv_class): Likewise.
	(build_charclass): Likewise.
	(re_compile_pattern): Remove incorrect cast.
	(re_compile_fastmap_iter): Change the type of characters from
	"unsigned char"	to "char", and append a cast to "char*" pointer
	in array subscript.
	(parse_bracket_exp): Likewise.
	* posix/regex_internal.c (re_string_construct_common): Likewise.
	(re_string_allocate): Likewise.
	(re_string_construct): Likewise.
	(re_string_realloc_buffers): Likewise.
	(build_wcs_buffer): Likewise.
	(re_string_reconstruct): Likewise.
	* posix/regex_internal.h: Change the type of characters in
	re_string_t and bracket_elem_t from "unsigned char" to "char".
	* posix/regexec.c (regexec): Append "__restrict" modifier to avoid
	warnings of some compilers.
	(transit_state_bkref_loop): Change the type of characters from
	"unsigned char"	to "char", and append a cast to "char*" pointer in
	array subscript.
	(check_node_accept_bytes): Likewise.
	(find_collation_sequence_value): Likewise.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/strcpy.S')
-rw-r--r--sysdeps/powerpc/powerpc32/strcpy.S120
1 files changed, 120 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/strcpy.S b/sysdeps/powerpc/powerpc32/strcpy.S
new file mode 100644
index 0000000000..ed8eb7298e
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/strcpy.S
@@ -0,0 +1,120 @@
+/* Optimized strcpy implementation for PowerPC.
+   Copyright (C) 1997, 1999, 2000 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] strcpy (char *dest [r3], const char *src [r4])  */
+
+EALIGN (BP_SYM (strcpy), 4, 0)
+
+#define rTMP	r0
+#define rRTN	r3	/* incoming DEST arg preserved as result */
+#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 rSRC	r4	/* pointer to previous word in src */
+# define rDEST	r5	/* pointer to previous word in dest */
+#endif
+#define rWORD	r6	/* current word from src */
+#define rFEFE	r7	/* constant 0xfefefeff (-0x01010101) */
+#define r7F7F	r8	/* constant 0x7f7f7f7f */
+#define rNEG	r9	/* ~(word in s1 | 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, rRTN
+	clrlwi.	rTMP, rTMP, 30
+#if __BOUNDED_POINTERS__
+	addi	rDEST, rDEST, -4
+#else
+	addi	rDEST, rRTN, -4
+#endif
+	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
+	stb	rTMP, 4(rDEST)
+	beqlr-
+	rlwinm.	rTMP, rALT, 16, 24, 31
+	stb	rTMP, 5(rDEST)
+	beqlr-
+	rlwinm.	rTMP, rALT, 24, 24, 31
+	stb	rTMP, 6(rDEST)
+	beqlr-
+	stb	rALT, 7(rDEST)
+	/* GKM FIXME: check high bound.  */
+	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, rRTN, -1
+	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):	stb	rWORD, 1(rDEST)
+	/* GKM FIXME: check high bound.  */
+	blr
+L(u1):	stb	rALT, 1(rDEST)
+	/* GKM FIXME: check high bound.  */
+	blr
+
+END (BP_SYM (strcpy))