# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
#
-MSRC:=string.c
-MOBJ:=memcpy.o memmove.o memset.o bzero.o
-
STRING_ARCH_DIR:=$(top_srcdir)libc/string/powerpc
STRING_ARCH_OUT:=$(top_builddir)libc/string/powerpc
-STRING_ARCH_MSRC:=$(patsubst %.c,$(STRING_ARCH_DIR)/%.c,$(MSRC))
-STRING_ARCH_MOBJ:=$(patsubst %.o,$(STRING_ARCH_OUT)/%.o,$(MOBJ))
-
-STRING_ARCH_OBJS:=$(STRING_ARCH_MOBJ)
-
-#STRING_ARCH_DEF:=$(patsubst %,-DL_%,$(subst .o,,$(notdir $(STRING_ARCH_MOBJ))))
-
-$(STRING_ARCH_MOBJ): $(STRING_ARCH_MSRC)
- $(compile.m)
+STRING_ARCH_CSRC:=$(wildcard $(STRING_ARCH_DIR)/*.c)
+STRING_ARCH_COBJ:=$(patsubst $(STRING_ARCH_DIR)/%.c,$(STRING_ARCH_OUT)/%.o,$(STRING_ARCH_CSRC))
-$(STRING_ARCH_MOBJ:.o=.os): $(STRING_ARCH_MSRC)
- $(compile.m)
+STRING_ARCH_OBJS:=$(STRING_ARCH_COBJ)
libc-a-$(UCLIBC_HAS_STRING_ARCH_OPT)+=$(STRING_ARCH_OBJS)
libc-so-$(UCLIBC_HAS_STRING_ARCH_OPT)+=$(STRING_ARCH_OBJS:.o=.os)
-#CFLAGS-multi-$(UCLIBC_HAS_STRING_ARCH_OPT)+=$(STRING_ARCH_DEF)
-#libc-multi-$(UCLIBC_HAS_STRING_ARCH_OPT)+=$(STRING_ARCH_MSRC)
-libc-nomulti-$(UCLIBC_HAS_STRING_ARCH_OPT)+=$(STRING_ARCH_OBJS)
+libc-multi-$(UCLIBC_HAS_STRING_ARCH_OPT)+=$(STRING_ARCH_CSRC)
objclean-y+=string_arch_objclean
--- /dev/null
+/*
+ * Copyright (C) 2004 Joakim Tjernlund
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* These are carefully optimized mem*() functions for PPC written in C.
+ * Don't muck around with these function without checking the generated
+ * assmbler code.
+ * It is possible to optimize these significantly more by using specific
+ * data cache instructions(mainly dcbz). However that requires knownledge
+ * about the CPU's cache line size.
+ *
+ * BUG ALERT!
+ * The cache instructions on MPC8xx CPU's are buggy(they don't update
+ * the DAR register when causing a DTLB Miss/Error) and cannot be
+ * used on 8xx CPU's without a kernel patch to work around this
+ * problem.
+ */
+
+#include <string.h>
+
+void attribute_hidden *__memcpy(void *to, const void *from, size_t n)
+/* PPC can do pre increment and load/store, but not post increment and load/store.
+ Therefore use *++ptr instead of *ptr++. */
+{
+ unsigned long rem, chunks, tmp1, tmp2;
+ unsigned char *tmp_to;
+ unsigned char *tmp_from = (unsigned char *)from;
+
+ chunks = n / 8;
+ tmp_from -= 4;
+ tmp_to = to - 4;
+ if (!chunks)
+ goto lessthan8;
+ rem = (unsigned long )tmp_to % 4;
+ if (rem)
+ goto align;
+ copy_chunks:
+ do {
+ /* make gcc to load all data, then store it */
+ tmp1 = *(unsigned long *)(tmp_from+4);
+ tmp_from += 8;
+ tmp2 = *(unsigned long *)tmp_from;
+ *(unsigned long *)(tmp_to+4) = tmp1;
+ tmp_to += 8;
+ *(unsigned long *)tmp_to = tmp2;
+ } while (--chunks);
+ lessthan8:
+ n = n % 8;
+ if (n >= 4) {
+ *(unsigned long *)(tmp_to+4) = *(unsigned long *)(tmp_from+4);
+ tmp_from += 4;
+ tmp_to += 4;
+ n = n-4;
+ }
+ if (!n ) return to;
+ tmp_from += 3;
+ tmp_to += 3;
+ do {
+ *++tmp_to = *++tmp_from;
+ } while (--n);
+
+ return to;
+ align:
+ rem = 4 - rem;
+ n = n - rem;
+ do {
+ *(tmp_to+4) = *(tmp_from+4);
+ ++tmp_from;
+ ++tmp_to;
+ } while (--rem);
+ chunks = n / 8;
+ if (chunks)
+ goto copy_chunks;
+ goto lessthan8;
+}
+
+strong_alias(__memcpy, memcpy)
--- /dev/null
+/*
+ * Copyright (C) 2004 Joakim Tjernlund
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* These are carefully optimized mem*() functions for PPC written in C.
+ * Don't muck around with these function without checking the generated
+ * assmbler code.
+ * It is possible to optimize these significantly more by using specific
+ * data cache instructions(mainly dcbz). However that requires knownledge
+ * about the CPU's cache line size.
+ *
+ * BUG ALERT!
+ * The cache instructions on MPC8xx CPU's are buggy(they don't update
+ * the DAR register when causing a DTLB Miss/Error) and cannot be
+ * used on 8xx CPU's without a kernel patch to work around this
+ * problem.
+ */
+
+#include <string.h>
+
+void attribute_hidden *__memmove(void *to, const void *from, size_t n)
+{
+ unsigned long rem, chunks, tmp1, tmp2;
+ unsigned char *tmp_to;
+ unsigned char *tmp_from = (unsigned char *)from;
+
+ if (tmp_from >= (unsigned char *)to)
+ return __memcpy(to, from, n);
+ chunks = n / 8;
+ tmp_from += n;
+ tmp_to = to + n;
+ if (!chunks)
+ goto lessthan8;
+ rem = (unsigned long )tmp_to % 4;
+ if (rem)
+ goto align;
+ copy_chunks:
+ do {
+ /* make gcc to load all data, then store it */
+ tmp1 = *(unsigned long *)(tmp_from-4);
+ tmp_from -= 8;
+ tmp2 = *(unsigned long *)tmp_from;
+ *(unsigned long *)(tmp_to-4) = tmp1;
+ tmp_to -= 8;
+ *(unsigned long *)tmp_to = tmp2;
+ } while (--chunks);
+ lessthan8:
+ n = n % 8;
+ if (n >= 4) {
+ *(unsigned long *)(tmp_to-4) = *(unsigned long *)(tmp_from-4);
+ tmp_from -= 4;
+ tmp_to -= 4;
+ n = n-4;
+ }
+ if (!n ) return to;
+ do {
+ *--tmp_to = *--tmp_from;
+ } while (--n);
+
+ return to;
+ align:
+ rem = 4 - rem;
+ n = n - rem;
+ do {
+ *--tmp_to = *--tmp_from;
+ } while (--rem);
+ chunks = n / 8;
+ if (chunks)
+ goto copy_chunks;
+ goto lessthan8;
+}
+
+strong_alias(__memmove, memmove)
--- /dev/null
+/*
+ * Copyright (C) 2004 Joakim Tjernlund
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/* These are carefully optimized mem*() functions for PPC written in C.
+ * Don't muck around with these function without checking the generated
+ * assmbler code.
+ * It is possible to optimize these significantly more by using specific
+ * data cache instructions(mainly dcbz). However that requires knownledge
+ * about the CPU's cache line size.
+ *
+ * BUG ALERT!
+ * The cache instructions on MPC8xx CPU's are buggy(they don't update
+ * the DAR register when causing a DTLB Miss/Error) and cannot be
+ * used on 8xx CPU's without a kernel patch to work around this
+ * problem.
+ */
+
+#include <string.h>
+
+static inline int expand_byte_word(int c){
+ /* this does:
+ c = c << 8 | c;
+ c = c << 16 | c ;
+ */
+ asm("rlwimi %0,%0,8,16,23\n"
+ "\trlwimi %0,%0,16,0,15\n"
+ : "=r" (c) : "0" (c));
+ return c;
+}
+void attribute_hidden *__memset(void *to, int c, size_t n)
+{
+ unsigned long rem, chunks;
+ unsigned char *tmp_to;
+
+ chunks = n / 8;
+ tmp_to = to - 4;
+ c = expand_byte_word(c);
+ if (!chunks)
+ goto lessthan8;
+ rem = (unsigned long )tmp_to % 4;
+ if (rem)
+ goto align;
+ copy_chunks:
+ do {
+ *(unsigned long *)(tmp_to+4) = c;
+ tmp_to += 4;
+ *(unsigned long *)(tmp_to+4) = c;
+ tmp_to += 4;
+ } while (--chunks);
+ lessthan8:
+ n = n % 8;
+ if (n >= 4) {
+ *(unsigned long *)(tmp_to+4) = c;
+ tmp_to += 4;
+ n = n-4;
+ }
+ if (!n ) return to;
+ tmp_to += 3;
+ do {
+ *++tmp_to = c;
+ } while (--n);
+
+ return to;
+ align:
+ rem = 4 - rem;
+ n = n-rem;
+ do {
+ *(tmp_to+4) = c;
+ ++tmp_to;
+ } while (--rem);
+ chunks = n / 8;
+ if (chunks)
+ goto copy_chunks;
+ goto lessthan8;
+}
+
+strong_alias(__memset, memset)
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify it under
- * the terms of the GNU Library General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) any
- * later version.
- *
- * This program 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 Library General Public License for more
- * details.
- */
-
-/* These are carefully optimized mem*() functions for PPC written in C.
- * Don't muck around with these function without checking the generated
- * assmbler code.
- * It is possible to optimize these significantly more by using specific
- * data cache instructions(mainly dcbz). However that requires knownledge
- * about the CPU's cache line size.
- *
- * BUG ALERT!
- * The cache instructions on MPC8xx CPU's are buggy(they don't update
- * the DAR register when causing a DTLB Miss/Error) and cannot be
- * used on 8xx CPU's without a kernel patch to work around this
- * problem.
- *
- * Copyright (C) 2004 Joakim Tjernlund
- */
-
-#define _GNU_SOURCE
-#include <string.h>
-#include <locale.h> /* for __LOCALE_C_ONLY */
-
-#ifdef L_memcpy
-void attribute_hidden *__memcpy(void *to, const void *from, size_t n)
-/* PPC can do pre increment and load/store, but not post increment and load/store.
- Therefore use *++ptr instead of *ptr++. */
-{
- unsigned long rem, chunks, tmp1, tmp2;
- unsigned char *tmp_to;
- unsigned char *tmp_from = (unsigned char *)from;
-
- chunks = n / 8;
- tmp_from -= 4;
- tmp_to = to - 4;
- if (!chunks)
- goto lessthan8;
- rem = (unsigned long )tmp_to % 4;
- if (rem)
- goto align;
- copy_chunks:
- do {
- /* make gcc to load all data, then store it */
- tmp1 = *(unsigned long *)(tmp_from+4);
- tmp_from += 8;
- tmp2 = *(unsigned long *)tmp_from;
- *(unsigned long *)(tmp_to+4) = tmp1;
- tmp_to += 8;
- *(unsigned long *)tmp_to = tmp2;
- } while (--chunks);
- lessthan8:
- n = n % 8;
- if (n >= 4) {
- *(unsigned long *)(tmp_to+4) = *(unsigned long *)(tmp_from+4);
- tmp_from += 4;
- tmp_to += 4;
- n = n-4;
- }
- if (!n ) return to;
- tmp_from += 3;
- tmp_to += 3;
- do {
- *++tmp_to = *++tmp_from;
- } while (--n);
-
- return to;
- align:
- rem = 4 - rem;
- n = n - rem;
- do {
- *(tmp_to+4) = *(tmp_from+4);
- ++tmp_from;
- ++tmp_to;
- } while (--rem);
- chunks = n / 8;
- if (chunks)
- goto copy_chunks;
- goto lessthan8;
-}
-strong_alias(__memcpy, memcpy);
-#endif
-
-#ifdef L_memmove
-void attribute_hidden *__memmove(void *to, const void *from, size_t n)
-{
- unsigned long rem, chunks, tmp1, tmp2;
- unsigned char *tmp_to;
- unsigned char *tmp_from = (unsigned char *)from;
-
- if (tmp_from >= (unsigned char *)to)
- return memcpy(to, from, n);
- chunks = n / 8;
- tmp_from += n;
- tmp_to = to + n;
- if (!chunks)
- goto lessthan8;
- rem = (unsigned long )tmp_to % 4;
- if (rem)
- goto align;
- copy_chunks:
- do {
- /* make gcc to load all data, then store it */
- tmp1 = *(unsigned long *)(tmp_from-4);
- tmp_from -= 8;
- tmp2 = *(unsigned long *)tmp_from;
- *(unsigned long *)(tmp_to-4) = tmp1;
- tmp_to -= 8;
- *(unsigned long *)tmp_to = tmp2;
- } while (--chunks);
- lessthan8:
- n = n % 8;
- if (n >= 4) {
- *(unsigned long *)(tmp_to-4) = *(unsigned long *)(tmp_from-4);
- tmp_from -= 4;
- tmp_to -= 4;
- n = n-4;
- }
- if (!n ) return to;
- do {
- *--tmp_to = *--tmp_from;
- } while (--n);
-
- return to;
- align:
- rem = 4 - rem;
- n = n - rem;
- do {
- *--tmp_to = *--tmp_from;
- } while (--rem);
- chunks = n / 8;
- if (chunks)
- goto copy_chunks;
- goto lessthan8;
-}
-strong_alias(__memmove, memmove);
-#endif
-
-#ifdef L_memset
-static inline int expand_byte_word(int c){
- /* this does:
- c = c << 8 | c;
- c = c << 16 | c ;
- */
- asm("rlwimi %0,%0,8,16,23\n"
- "\trlwimi %0,%0,16,0,15\n"
- : "=r" (c) : "0" (c));
- return c;
-}
-void attribute_hidden *__memset(void *to, int c, size_t n)
-{
- unsigned long rem, chunks;
- unsigned char *tmp_to;
-
- chunks = n / 8;
- tmp_to = to - 4;
- c = expand_byte_word(c);
- if (!chunks)
- goto lessthan8;
- rem = (unsigned long )tmp_to % 4;
- if (rem)
- goto align;
- copy_chunks:
- do {
- *(unsigned long *)(tmp_to+4) = c;
- tmp_to += 4;
- *(unsigned long *)(tmp_to+4) = c;
- tmp_to += 4;
- } while (--chunks);
- lessthan8:
- n = n % 8;
- if (n >= 4) {
- *(unsigned long *)(tmp_to+4) = c;
- tmp_to += 4;
- n = n-4;
- }
- if (!n ) return to;
- tmp_to += 3;
- do {
- *++tmp_to = c;
- } while (--n);
-
- return to;
- align:
- rem = 4 - rem;
- n = n-rem;
- do {
- *(tmp_to+4) = c;
- ++tmp_to;
- } while (--rem);
- chunks = n / 8;
- if (chunks)
- goto copy_chunks;
- goto lessthan8;
-}
-strong_alias(__memset, memset);
-#endif
-
-#ifdef L_bzero
-weak_alias(__bzero,bzero);
-void __bzero(void *s, size_t n)
-{
- (void)memset(s, 0, n);
-}
-#endif
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