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authorPeter S. Mazinger <ps.m@gmx.net>2005-11-11 22:41:52 +0000
committerPeter S. Mazinger <ps.m@gmx.net>2005-11-11 22:41:52 +0000
commit0b09d1e5ed195662e8df3246ca4cc450947cc0f8 (patch)
treef9b284000c0b9777f2681a5b15f9cac00d13b661 /libc/string
parent7500403c7b05536eafb0597613284416096be2a2 (diff)
downloaduClibc-alpine-0b09d1e5ed195662e8df3246ca4cc450947cc0f8.tar.bz2
uClibc-alpine-0b09d1e5ed195662e8df3246ca4cc450947cc0f8.tar.xz
Split up string.c, make internals hidden
Diffstat (limited to 'libc/string')
-rw-r--r--libc/string/i386/Makefile.arch23
-rw-r--r--libc/string/i386/memchr.c52
-rw-r--r--libc/string/i386/memcpy.c54
-rw-r--r--libc/string/i386/memmove.c60
-rw-r--r--libc/string/i386/memset.c48
-rw-r--r--libc/string/i386/strcat.c52
-rw-r--r--libc/string/i386/strchr.c56
-rw-r--r--libc/string/i386/strcmp.c61
-rw-r--r--libc/string/i386/strcpy.c49
-rw-r--r--libc/string/i386/string.c328
-rw-r--r--libc/string/i386/strlen.c49
-rw-r--r--libc/string/i386/strncat.c62
-rw-r--r--libc/string/i386/strncmp.c59
-rw-r--r--libc/string/i386/strncpy.c57
-rw-r--r--libc/string/i386/strnlen.c55
-rw-r--r--libc/string/i386/strrchr.c54
16 files changed, 772 insertions, 347 deletions
diff --git a/libc/string/i386/Makefile.arch b/libc/string/i386/Makefile.arch
index e12eb8170..27a29dd16 100644
--- a/libc/string/i386/Makefile.arch
+++ b/libc/string/i386/Makefile.arch
@@ -5,33 +5,18 @@
# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
#
-MSRC:=string.c
-MOBJ:= strcpy.o strncpy.o strcat.o strncat.o strcmp.o \
- strncmp.o strchr.o strrchr.o strlen.o strnlen.o \
- memcpy.o memmove.o memchr.o memset.o
-
STRING_ARCH_DIR:=$(top_srcdir)libc/string/i386
STRING_ARCH_OUT:=$(top_builddir)libc/string/i386
-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 $(STRING_ARCH_OBJS))))
-
-$(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
diff --git a/libc/string/i386/memchr.c b/libc/string/i386/memchr.c
new file mode 100644
index 000000000..53a2af2bb
--- /dev/null
+++ b/libc/string/i386/memchr.c
@@ -0,0 +1,52 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+void attribute_hidden *__memchr(const void *cs, int c, size_t count)
+{
+ int d0;
+ register void * __res;
+ if (!count)
+ return NULL;
+ __asm__ __volatile__(
+ "repne\n\t"
+ "scasb\n\t"
+ "je 1f\n\t"
+ "movl $1,%0\n"
+ "1:\tdecl %0"
+ :"=D" (__res), "=&c" (d0) : "a" (c),"0" (cs),"1" (count));
+ return __res;
+}
+
+strong_alias(__memchr, memchr)
diff --git a/libc/string/i386/memcpy.c b/libc/string/i386/memcpy.c
new file mode 100644
index 000000000..b2e0236f5
--- /dev/null
+++ b/libc/string/i386/memcpy.c
@@ -0,0 +1,54 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+void attribute_hidden *__memcpy(void * to, const void * from, size_t n)
+{
+ int d0, d1, d2;
+ __asm__ __volatile__(
+ "rep ; movsl\n\t"
+ "testb $2,%b4\n\t"
+ "je 1f\n\t"
+ "movsw\n"
+ "1:\ttestb $1,%b4\n\t"
+ "je 2f\n\t"
+ "movsb\n"
+ "2:"
+ : "=&c" (d0), "=&D" (d1), "=&S" (d2)
+ :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
+ : "memory");
+ return (to);
+}
+
+strong_alias(__memcpy, memcpy)
diff --git a/libc/string/i386/memmove.c b/libc/string/i386/memmove.c
new file mode 100644
index 000000000..27f6cf264
--- /dev/null
+++ b/libc/string/i386/memmove.c
@@ -0,0 +1,60 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+void attribute_hidden *__memmove(void *dest, const void *src, size_t n)
+{
+ int d0, d1, d2;
+ if (dest<src)
+ __asm__ __volatile__(
+ "rep\n\t"
+ "movsb"
+ : "=&c" (d0), "=&S" (d1), "=&D" (d2)
+ :"0" (n),"1" (src),"2" (dest)
+ : "memory");
+ else
+ __asm__ __volatile__(
+ "std\n\t"
+ "rep\n\t"
+ "movsb\n\t"
+ "cld"
+ : "=&c" (d0), "=&S" (d1), "=&D" (d2)
+ :"0" (n),
+ "1" (n-1+(const char *)src),
+ "2" (n-1+(char *)dest)
+ :"memory");
+ return dest;
+}
+
+strong_alias(__memmove, memmove)
diff --git a/libc/string/i386/memset.c b/libc/string/i386/memset.c
new file mode 100644
index 000000000..a35279643
--- /dev/null
+++ b/libc/string/i386/memset.c
@@ -0,0 +1,48 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+void attribute_hidden *__memset(void *s, int c, size_t count)
+{
+ int d0, d1;
+ __asm__ __volatile__(
+ "rep\n\t"
+ "stosb"
+ : "=&c" (d0), "=&D" (d1)
+ :"a" (c),"1" (s),"0" (count)
+ :"memory");
+ return s;
+}
+
+strong_alias(__memset, memset)
diff --git a/libc/string/i386/strcat.c b/libc/string/i386/strcat.c
new file mode 100644
index 000000000..8e4447ee0
--- /dev/null
+++ b/libc/string/i386/strcat.c
@@ -0,0 +1,52 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+char attribute_hidden *__strcat(char * dest, const char * src)
+{
+ int d0, d1, d2, d3;
+ __asm__ __volatile__(
+ "repne\n\t"
+ "scasb\n\t"
+ "decl %1\n"
+ "1:\tlodsb\n\t"
+ "stosb\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b"
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
+ : "0" (src), "1" (dest), "2" (0), "3" (0xffffffff):"memory");
+ return dest;
+}
+
+strong_alias(__strcat, strcat)
diff --git a/libc/string/i386/strchr.c b/libc/string/i386/strchr.c
new file mode 100644
index 000000000..075c65c39
--- /dev/null
+++ b/libc/string/i386/strchr.c
@@ -0,0 +1,56 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+char attribute_hidden *__strchr(const char *s, int c)
+{
+ int d0;
+ register char * __res;
+ __asm__ __volatile__(
+ "movb %%al,%%ah\n"
+ "1:\tlodsb\n\t"
+ "cmpb %%ah,%%al\n\t"
+ "je 2f\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n\t"
+ "movl $1,%1\n"
+ "2:\tmovl %1,%0\n\t"
+ "decl %0"
+ :"=a" (__res), "=&S" (d0) : "1" (s),"0" (c));
+ return __res;
+}
+
+strong_alias(__strchr, strchr)
+
+weak_alias(strchr, index)
diff --git a/libc/string/i386/strcmp.c b/libc/string/i386/strcmp.c
new file mode 100644
index 000000000..4744fdf4e
--- /dev/null
+++ b/libc/string/i386/strcmp.c
@@ -0,0 +1,61 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+#include <locale.h> /* for __LOCALE_C_ONLY */
+
+int attribute_hidden __strcmp(const char *cs, const char *ct)
+{
+ int d0, d1;
+ register int __res;
+ __asm__ __volatile__(
+ "1:\tlodsb\n\t"
+ "scasb\n\t"
+ "jne 2f\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n\t"
+ "xorl %%eax,%%eax\n\t"
+ "jmp 3f\n"
+ "2:\tsbbl %%eax,%%eax\n\t"
+ "orb $1,%%al\n"
+ "3:"
+ :"=a" (__res), "=&S" (d0), "=&D" (d1)
+ :"1" (cs),"2" (ct));
+ return __res;
+}
+
+strong_alias(__strcmp, strcmp)
+
+#ifdef __LOCALE_C_ONLY
+weak_alias(strcmp, strcoll)
+#endif /* __LOCALE_C_ONLY */
diff --git a/libc/string/i386/strcpy.c b/libc/string/i386/strcpy.c
new file mode 100644
index 000000000..cb923aaba
--- /dev/null
+++ b/libc/string/i386/strcpy.c
@@ -0,0 +1,49 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+char attribute_hidden *__strcpy(char * dest, const char * src)
+{
+ int d0, d1, d2;
+ __asm__ __volatile__(
+ "1:\tlodsb\n\t"
+ "stosb\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b"
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2)
+ :"0" (src),"1" (dest) : "memory");
+ return dest;
+}
+
+strong_alias(__strcpy, strcpy)
diff --git a/libc/string/i386/string.c b/libc/string/i386/string.c
deleted file mode 100644
index f827445fe..000000000
--- a/libc/string/i386/string.c
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * This string-include defines all string functions as inline
- * functions. Use gcc. It also assumes ds=es=data space, this should be
- * normal. Most of the string-functions are rather heavily hand-optimized,
- * see especially strtok,strstr,str[c]spn. They should work, but are not
- * very easy to understand. Everything is done entirely within the register
- * set, making the functions fast and clean. String instructions have been
- * used through-out, making for "slightly" unclear code :-)
- *
- * NO Copyright (C) 1991, 1992 Linus Torvalds,
- * consider these trivial functions to be PD.
- *
- * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
- * These make no attempt to use nifty things like mmx/3dnow/etc.
- * These are not inline, and will therefore not be as fast as
- * modifying the headers to use inlines (and cannot therefore
- * do tricky things when dealing with const memory). But they
- * should (I hope!) be faster than their generic equivalents....
- *
- * More importantly, these should provide a good example for
- * others to follow when adding arch specific optimizations.
- * -Erik
- */
-
-#define _GNU_SOURCE
-#include <string.h>
-#include <locale.h> /* for __LOCALE_C_ONLY */
-
-#ifdef L_strcpy
-char * strcpy(char * dest, const char * src)
-{
- int d0, d1, d2;
- __asm__ __volatile__(
- "1:\tlodsb\n\t"
- "stosb\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b"
- : "=&S" (d0), "=&D" (d1), "=&a" (d2)
- :"0" (src),"1" (dest) : "memory");
- return dest;
-}
-#endif
-
-
-#ifdef L_strncpy
-char * strncpy(char * dest, const char * src, size_t count)
-{
- int d0, d1, d2, d3;
- __asm__ __volatile__(
- "incl %2\n"
- "1:\n"
- "decl %2\n"
- "jz 2f\n"
- "lodsb\n\t"
- "stosb\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n\t"
- "decl %2\n"
- "rep\n\t"
- "stosb\n"
- "2:"
- : "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3)
- :"0" (src),"1" (dest),"2" (count) : "memory");
- return dest;
-}
-#endif
-
-
-#ifdef L_strcat
-char *strcat(char * dest, const char * src)
-{
- int d0, d1, d2, d3;
- __asm__ __volatile__(
- "repne\n\t"
- "scasb\n\t"
- "decl %1\n"
- "1:\tlodsb\n\t"
- "stosb\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b"
- : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
- : "0" (src), "1" (dest), "2" (0), "3" (0xffffffff):"memory");
- return dest;
-}
-#endif
-
-
-#ifdef L_strncat
-char *strncat(char * dest,
- const char * src, size_t count)
-{
- int d0, d1, d2, d3;
- __asm__ __volatile__(
- "repne\n\t"
- "scasb\n\t"
- "decl %1\n\t"
- "movl %8,%3\n"
- "incl %3\n"
- "1:\tdecl %3\n\t"
- "jz 2f\n"
- "lodsb\n\t"
- "stosb\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n"
- "jmp 3f\n"
- "2:\txorl %2,%2\n\t"
- "stosb\n"
- "3:"
- : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
- : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
- : "memory");
- return dest;
-}
-#endif
-
-
-#ifdef L_strcmp
-int strcmp(const char *cs, const char *ct)
-{
- int d0, d1;
- register int __res;
- __asm__ __volatile__(
- "1:\tlodsb\n\t"
- "scasb\n\t"
- "jne 2f\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n\t"
- "xorl %%eax,%%eax\n\t"
- "jmp 3f\n"
- "2:\tsbbl %%eax,%%eax\n\t"
- "orb $1,%%al\n"
- "3:"
- :"=a" (__res), "=&S" (d0), "=&D" (d1)
- :"1" (cs),"2" (ct));
- return __res;
-}
-#ifdef __LOCALE_C_ONLY
-weak_alias(strcmp,strcoll);
-#endif /* __LOCALE_C_ONLY */
-#endif
-
-
-#ifdef L_strncmp
-int strncmp(const char *cs, const char *ct, size_t count)
-{
- register int __res;
- int d0, d1, d2;
- __asm__ __volatile__(
- "incl %3\n"
- "1:\tdecl %3\n\t"
- "jz 2f\n"
- "lodsb\n\t"
- "scasb\n\t"
- "jne 3f\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n"
- "2:\txorl %%eax,%%eax\n\t"
- "jmp 4f\n"
- "3:\tsbbl %%eax,%%eax\n\t"
- "orb $1,%%al\n"
- "4:"
- :"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
- :"1" (cs),"2" (ct),"3" (count));
- return __res;
-}
-#endif
-
-
-#ifdef L_strchr
-char * strchr(const char *s, int c)
-{
- int d0;
- register char * __res;
- __asm__ __volatile__(
- "movb %%al,%%ah\n"
- "1:\tlodsb\n\t"
- "cmpb %%ah,%%al\n\t"
- "je 2f\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n\t"
- "movl $1,%1\n"
- "2:\tmovl %1,%0\n\t"
- "decl %0"
- :"=a" (__res), "=&S" (d0) : "1" (s),"0" (c));
- return __res;
-}
-weak_alias(strchr,index);
-#endif
-
-
-#ifdef L_strrchr
-char *strrchr(const char *s, int c)
-{
- int d0, d1;
- register char * __res;
- __asm__ __volatile__(
- "movb %%al,%%ah\n"
- "1:\tlodsb\n\t"
- "cmpb %%ah,%%al\n\t"
- "jne 2f\n\t"
- "leal -1(%%esi),%0\n"
- "2:\ttestb %%al,%%al\n\t"
- "jne 1b"
- :"=g" (__res), "=&S" (d0), "=&a" (d1) :"0" (0),"1" (s),"2" (c));
- return __res;
-}
-weak_alias(strrchr,rindex);
-#endif
-
-
-
-#ifdef L_strlen
-size_t strlen(const char *s)
-{
- int d0;
- register int __res;
- __asm__ __volatile__(
- "repne\n\t"
- "scasb\n\t"
- "notl %0\n\t"
- "decl %0"
- :"=c" (__res), "=&D" (d0) :"1" (s),"a" (0), "0" (0xffffffff));
- return __res;
-}
-#endif
-
-
-#ifdef L_strnlen
-size_t strnlen(const char *s, size_t count)
-{
- int d0;
- register int __res;
- __asm__ __volatile__(
- "movl %2,%0\n\t"
- "incl %1\n"
- "jmp 2f\n"
- "1:\tcmpb $0,(%0)\n\t"
- "je 3f\n\t"
- "incl %0\n"
- "2:\tdecl %1\n\t"
- "jne 1b\n"
- "3:\tsubl %2,%0"
- :"=a" (__res), "=&d" (d0)
- :"c" (s),"1" (count));
- return __res;
-}
-#endif
-
-
-#ifdef L_memcpy
-void *memcpy(void * to, const void * from, size_t n)
-{
- int d0, d1, d2;
- __asm__ __volatile__(
- "rep ; movsl\n\t"
- "testb $2,%b4\n\t"
- "je 1f\n\t"
- "movsw\n"
- "1:\ttestb $1,%b4\n\t"
- "je 2f\n\t"
- "movsb\n"
- "2:"
- : "=&c" (d0), "=&D" (d1), "=&S" (d2)
- :"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
- : "memory");
- return (to);
-}
-#endif
-
-
-#ifdef L_memmove
-void *memmove(void *dest, const void *src, size_t n)
-{
- int d0, d1, d2;
- if (dest<src)
- __asm__ __volatile__(
- "rep\n\t"
- "movsb"
- : "=&c" (d0), "=&S" (d1), "=&D" (d2)
- :"0" (n),"1" (src),"2" (dest)
- : "memory");
- else
- __asm__ __volatile__(
- "std\n\t"
- "rep\n\t"
- "movsb\n\t"
- "cld"
- : "=&c" (d0), "=&S" (d1), "=&D" (d2)
- :"0" (n),
- "1" (n-1+(const char *)src),
- "2" (n-1+(char *)dest)
- :"memory");
- return dest;
-}
-#endif
-
-#ifdef L_memchr
-void *memchr(const void *cs, int c, size_t count)
-{
- int d0;
- register void * __res;
- if (!count)
- return NULL;
- __asm__ __volatile__(
- "repne\n\t"
- "scasb\n\t"
- "je 1f\n\t"
- "movl $1,%0\n"
- "1:\tdecl %0"
- :"=D" (__res), "=&c" (d0) : "a" (c),"0" (cs),"1" (count));
- return __res;
-}
-#endif
-
-#ifdef L_memset
-void *memset(void *s, int c, size_t count)
-{
- int d0, d1;
- __asm__ __volatile__(
- "rep\n\t"
- "stosb"
- : "=&c" (d0), "=&D" (d1)
- :"a" (c),"1" (s),"0" (count)
- :"memory");
- return s;
-}
-#endif
-
diff --git a/libc/string/i386/strlen.c b/libc/string/i386/strlen.c
new file mode 100644
index 000000000..1371acbeb
--- /dev/null
+++ b/libc/string/i386/strlen.c
@@ -0,0 +1,49 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+size_t attribute_hidden __strlen(const char *s)
+{
+ int d0;
+ register int __res;
+ __asm__ __volatile__(
+ "repne\n\t"
+ "scasb\n\t"
+ "notl %0\n\t"
+ "decl %0"
+ :"=c" (__res), "=&D" (d0) :"1" (s),"a" (0), "0" (0xffffffff));
+ return __res;
+}
+
+strong_alias(__strlen, strlen)
diff --git a/libc/string/i386/strncat.c b/libc/string/i386/strncat.c
new file mode 100644
index 000000000..39a22766d
--- /dev/null
+++ b/libc/string/i386/strncat.c
@@ -0,0 +1,62 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+char attribute_hidden *__strncat(char * dest,
+ const char * src, size_t count)
+{
+ int d0, d1, d2, d3;
+ __asm__ __volatile__(
+ "repne\n\t"
+ "scasb\n\t"
+ "decl %1\n\t"
+ "movl %8,%3\n"
+ "incl %3\n"
+ "1:\tdecl %3\n\t"
+ "jz 2f\n"
+ "lodsb\n\t"
+ "stosb\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n"
+ "jmp 3f\n"
+ "2:\txorl %2,%2\n\t"
+ "stosb\n"
+ "3:"
+ : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
+ : "0" (src),"1" (dest),"2" (0),"3" (0xffffffff), "g" (count)
+ : "memory");
+ return dest;
+}
+
+strong_alias(__strncat, strncat)
diff --git a/libc/string/i386/strncmp.c b/libc/string/i386/strncmp.c
new file mode 100644
index 000000000..86b317fb8
--- /dev/null
+++ b/libc/string/i386/strncmp.c
@@ -0,0 +1,59 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+int attribute_hidden __strncmp(const char *cs, const char *ct, size_t count)
+{
+ register int __res;
+ int d0, d1, d2;
+ __asm__ __volatile__(
+ "incl %3\n"
+ "1:\tdecl %3\n\t"
+ "jz 2f\n"
+ "lodsb\n\t"
+ "scasb\n\t"
+ "jne 3f\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n"
+ "2:\txorl %%eax,%%eax\n\t"
+ "jmp 4f\n"
+ "3:\tsbbl %%eax,%%eax\n\t"
+ "orb $1,%%al\n"
+ "4:"
+ :"=a" (__res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
+ :"1" (cs),"2" (ct),"3" (count));
+ return __res;
+}
+
+strong_alias(__strncmp, strncmp)
diff --git a/libc/string/i386/strncpy.c b/libc/string/i386/strncpy.c
new file mode 100644
index 000000000..1e7257e95
--- /dev/null
+++ b/libc/string/i386/strncpy.c
@@ -0,0 +1,57 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+char attribute_hidden *__strncpy(char * dest, const char * src, size_t count)
+{
+ int d0, d1, d2, d3;
+ __asm__ __volatile__(
+ "incl %2\n"
+ "1:\n"
+ "decl %2\n"
+ "jz 2f\n"
+ "lodsb\n\t"
+ "stosb\n\t"
+ "testb %%al,%%al\n\t"
+ "jne 1b\n\t"
+ "decl %2\n"
+ "rep\n\t"
+ "stosb\n"
+ "2:"
+ : "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3)
+ :"0" (src),"1" (dest),"2" (count) : "memory");
+ return dest;
+}
+
+strong_alias(__strncpy, strncpy)
diff --git a/libc/string/i386/strnlen.c b/libc/string/i386/strnlen.c
new file mode 100644
index 000000000..be7ace51d
--- /dev/null
+++ b/libc/string/i386/strnlen.c
@@ -0,0 +1,55 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+size_t attribute_hidden __strnlen(const char *s, size_t count)
+{
+ int d0;
+ register int __res;
+ __asm__ __volatile__(
+ "movl %2,%0\n\t"
+ "incl %1\n"
+ "jmp 2f\n"
+ "1:\tcmpb $0,(%0)\n\t"
+ "je 3f\n\t"
+ "incl %0\n"
+ "2:\tdecl %1\n\t"
+ "jne 1b\n"
+ "3:\tsubl %2,%0"
+ :"=a" (__res), "=&d" (d0)
+ :"c" (s),"1" (count));
+ return __res;
+}
+
+strong_alias(__strnlen, strnlen)
diff --git a/libc/string/i386/strrchr.c b/libc/string/i386/strrchr.c
new file mode 100644
index 000000000..626a12777
--- /dev/null
+++ b/libc/string/i386/strrchr.c
@@ -0,0 +1,54 @@
+/*
+ * This string-include defines all string functions as inline
+ * functions. Use gcc. It also assumes ds=es=data space, this should be
+ * normal. Most of the string-functions are rather heavily hand-optimized,
+ * see especially strtok,strstr,str[c]spn. They should work, but are not
+ * very easy to understand. Everything is done entirely within the register
+ * set, making the functions fast and clean. String instructions have been
+ * used through-out, making for "slightly" unclear code :-)
+ *
+ * NO Copyright (C) 1991, 1992 Linus Torvalds,
+ * consider these trivial functions to be PD.
+ */
+
+/*
+ * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+/*
+ * Modified for uClibc by Erik Andersen <andersen@codepoet.org>
+ * These make no attempt to use nifty things like mmx/3dnow/etc.
+ * These are not inline, and will therefore not be as fast as
+ * modifying the headers to use inlines (and cannot therefore
+ * do tricky things when dealing with const memory). But they
+ * should (I hope!) be faster than their generic equivalents....
+ *
+ * More importantly, these should provide a good example for
+ * others to follow when adding arch specific optimizations.
+ * -Erik
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+
+char attribute_hidden *__strrchr(const char *s, int c)
+{
+ int d0, d1;
+ register char * __res;
+ __asm__ __volatile__(
+ "movb %%al,%%ah\n"
+ "1:\tlodsb\n\t"
+ "cmpb %%ah,%%al\n\t"
+ "jne 2f\n\t"
+ "leal -1(%%esi),%0\n"
+ "2:\ttestb %%al,%%al\n\t"
+ "jne 1b"
+ :"=g" (__res), "=&S" (d0), "=&a" (d1) :"0" (0),"1" (s),"2" (c));
+ return __res;
+}
+
+strong_alias(__strrchr, strrchr)
+
+weak_alias(__strrchr, rindex)