Split up MSRC file, bzero left out

libc/string/powerpc/Makefile.arch

@@ -5,31 +5,18 @@
 # 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
 

libc/string/powerpc/memcpy.c

@@ -0,0 +1,80 @@
+/*
+ * 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)

libc/string/powerpc/memmove.c

@@ -0,0 +1,76 @@
+/*
+ * 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)

libc/string/powerpc/memset.c

@@ -0,0 +1,81 @@
+/*
+ * 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)

libc/string/powerpc/string.c

@@ -1,213 +0,0 @@
-/*
- * 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