diff options
Diffstat (limited to 'libc')
-rw-r--r-- | libc/string/i386/string.c | 329 | ||||
-rw-r--r-- | libc/string/powerpc/string.c | 214 | ||||
-rw-r--r-- | libc/sysdeps/linux/alpha/sys/acct.h | 66 |
3 files changed, 0 insertions, 609 deletions
diff --git a/libc/string/i386/string.c b/libc/string/i386/string.c deleted file mode 100644 index 8a7f1a89b..000000000 --- a/libc/string/i386/string.c +++ /dev/null @@ -1,329 +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 _STDIO_UTILITY -#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/powerpc/string.c b/libc/string/powerpc/string.c deleted file mode 100644 index acd5d0144..000000000 --- a/libc/string/powerpc/string.c +++ /dev/null @@ -1,214 +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 _STDIO_UTILITY -#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 diff --git a/libc/sysdeps/linux/alpha/sys/acct.h b/libc/sysdeps/linux/alpha/sys/acct.h deleted file mode 100644 index 1e00006ef..000000000 --- a/libc/sysdeps/linux/alpha/sys/acct.h +++ /dev/null @@ -1,66 +0,0 @@ -/* Copyright (C) 1996, 1997, 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. */ - -#ifndef _SYS_ACCT_H - -#define _SYS_ACCT_H 1 -#include <features.h> - -#define __need_time_t -#include <time.h> - - -__BEGIN_DECLS - -#define ACCT_COMM 16 - -struct acct - { - char ac_comm[ACCT_COMM]; /* Accounting command name. */ - time_t ac_utime; /* Accounting user time. */ - time_t ac_stime; /* Accounting system time. */ - time_t ac_etime; /* Accounting elapsed time. */ - time_t ac_btime; /* Beginning time. */ - unsigned int ac_uid; /* Accounting user ID. */ - unsigned int ac_gid; /* Accounting group ID. */ - unsigned int ac_tty; /* Controlling tty. */ - /* Please note that the value of the `ac_tty' field, a device number, - is encoded differently in the kernel and for the libc dev_t type. */ - char ac_flag; /* Accounting flag. */ - long int ac_minflt; /* Accounting minor pagefaults. */ - long int ac_majflt; /* Accounting major pagefaults. */ - long int ac_exitcode; /* Accounting process exitcode. */ - }; - -enum - { - AFORK = 0001, /* Has executed fork, but no exec. */ - ASU = 0002, /* Used super-user privileges. */ - ACORE = 0004, /* Dumped core. */ - AXSIG = 0010 /* Killed by a signal. */ - }; - -#define AHZ 100 - - -/* Switch process accounting on and off. */ -extern int acct (__const char *__filename) __THROW; - -__END_DECLS - -#endif /* sys/acct.h */ |