diff options
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/alpha/bzero.S | 3 | ||||
-rw-r--r-- | sysdeps/generic/bits/select.h | 7 | ||||
-rw-r--r-- | sysdeps/generic/bzero.c | 3 | ||||
-rw-r--r-- | sysdeps/generic/stpcpy.c | 3 | ||||
-rw-r--r-- | sysdeps/generic/sysd-stdio.c | 6 | ||||
-rw-r--r-- | sysdeps/i386/bits/select.h | 3 | ||||
-rw-r--r-- | sysdeps/i386/bits/string.h | 14 | ||||
-rw-r--r-- | sysdeps/i386/bzero.c | 3 | ||||
-rw-r--r-- | sysdeps/i386/fpu/bits/mathinline.h | 9 | ||||
-rw-r--r-- | sysdeps/i386/i486/atomicity.h | 4 | ||||
-rw-r--r-- | sysdeps/i386/i486/bits/string.h | 160 | ||||
-rw-r--r-- | sysdeps/i386/i586/bzero.S | 3 | ||||
-rw-r--r-- | sysdeps/m68k/m68020/atomicity.h | 65 | ||||
-rw-r--r-- | sysdeps/stub/atomicity.h | 2 | ||||
-rw-r--r-- | sysdeps/unix/inet/Subdirs | 1 | ||||
-rw-r--r-- | sysdeps/vax/bzero.s | 3 |
16 files changed, 222 insertions, 67 deletions
diff --git a/sysdeps/alpha/bzero.S b/sysdeps/alpha/bzero.S index b70ade6a6d..1e0792395b 100644 --- a/sysdeps/alpha/bzero.S +++ b/sysdeps/alpha/bzero.S @@ -78,7 +78,7 @@ $tail: bne t4, 1f # is there a tail to do? .end bzero_loop -ENTRY(bzero) +ENTRY(__bzero) #ifdef PROF ldgp gp, 0(pv) lda AT, _mcount @@ -117,3 +117,4 @@ $oneq: $done: ret END(bzero) +weak_alias (__bzero, bzero) diff --git a/sysdeps/generic/bits/select.h b/sysdeps/generic/bits/select.h index 7803335499..8487e21bb3 100644 --- a/sysdeps/generic/bits/select.h +++ b/sysdeps/generic/bits/select.h @@ -21,15 +21,14 @@ #endif -/* This line MUST be split! Otherwise m4 will not change it. - - We don't use `memset' because this would require a prototype and +/* We don't use `memset' because this would require a prototype and the array isn't too big. */ #define __FD_ZERO(set) \ do { \ unsigned int __i; \ + __fd_mask *__arr = (set); \ for (__i = 0; __i < sizeof (__fd_set) / sizeof (__fd_mask); ++__i) \ - ((__fd_mask *) set)[__i] = '\0'; \ + __arr->fds_bits[__i] = '\0'; \ } while (0) #define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d)) #define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d)) diff --git a/sysdeps/generic/bzero.c b/sysdeps/generic/bzero.c index 7fda7c3b5e..002af2f0a3 100644 --- a/sysdeps/generic/bzero.c +++ b/sysdeps/generic/bzero.c @@ -22,7 +22,7 @@ /* Set N bytes of S to 0. */ void -bzero (s, len) +__bzero (s, len) void *s; size_t len; { @@ -78,3 +78,4 @@ bzero (s, len) len -= 1; } } +weak_alias (__bzero, bzero) diff --git a/sysdeps/generic/stpcpy.c b/sysdeps/generic/stpcpy.c index 0bf84cc700..e9de98ea7a 100644 --- a/sysdeps/generic/stpcpy.c +++ b/sysdeps/generic/stpcpy.c @@ -22,6 +22,9 @@ #include <string.h> +#undef __stpcpy +#undef stpcpy + #ifndef weak_alias # define __stpcpy stpcpy #endif diff --git a/sysdeps/generic/sysd-stdio.c b/sysdeps/generic/sysd-stdio.c index 9818f84c5c..da8ed20bed 100644 --- a/sysdeps/generic/sysd-stdio.c +++ b/sysdeps/generic/sysd-stdio.c @@ -28,10 +28,10 @@ /* Read N bytes into BUF from COOKIE. */ int -__stdio_read (void *cookie, char *buf, size_t n;) +__stdio_read (void *cookie, char *buf, size_t n) { const int fd = (int) cookie; -#if defined (EINTR) && defined (EINTR_REPEAT) +#if defined EINTR && defined EINTR_REPEAT int save = errno; int nread; @@ -70,7 +70,7 @@ __stdio_write (void *cookie, const char *buf, size_t n) n -= count; } else if (count < 0 -#if defined (EINTR) && defined (EINTR_REPEAT) +#if defined EINTR && defined EINTR_REPEAT && errno != EINTR #endif ) diff --git a/sysdeps/i386/bits/select.h b/sysdeps/i386/bits/select.h index edcb562945..34d2b0b27a 100644 --- a/sysdeps/i386/bits/select.h +++ b/sysdeps/i386/bits/select.h @@ -58,8 +58,9 @@ # define __FD_ZERO(set) \ do { \ unsigned int __i; \ + __fd_mask *__arr = (set); \ for (__i = 0; __i < sizeof (__fd_set) / sizeof (__fd_mask); ++__i) \ - ((__fd_mask *) set)[__i] = 0; \ + __arr->fds_bits[__i] = 0; \ } while (0) # define __FD_SET(d, set) ((set)->fds_bits[__FDELT (d)] |= __FDMASK (d)) # define __FD_CLR(d, set) ((set)->fds_bits[__FDELT (d)] &= ~__FDMASK (d)) diff --git a/sysdeps/i386/bits/string.h b/sysdeps/i386/bits/string.h index 2931684781..c6deb2b6a4 100644 --- a/sysdeps/i386/bits/string.h +++ b/sysdeps/i386/bits/string.h @@ -18,11 +18,17 @@ Boston, MA 02111-1307, USA. */ #ifndef _STRING_H -#error "Never use <bits/string.h> directly; include <string.h> instead." +# error "Never use <bits/string.h> directly; include <string.h> instead." #endif -/* We only provide optimizations for the GNU CC. */ -#if defined __GNUC__ && __GNUC__ >= 2 +/* The ix86 processors can access unaligned multi-byte variables. */ +#define _STRING_ARCH_unaligned 1 + + +/* We only provide optimizations if the user selects them and if + GNU CC is used. */ +#if !defined __NO_STRING_INLINES && defined __USE_STRING_INLINES \ + && defined __GNUC__ && __GNUC__ >= 2 #ifdef __cplusplus # define __STRING_INLINE inline @@ -741,4 +747,4 @@ strstr (__const char *__haystack, __const char *__needle) #undef __STRING_INLINE -#endif /* GNU CC */ +#endif /* use string inlines && GNU CC */ diff --git a/sysdeps/i386/bzero.c b/sysdeps/i386/bzero.c index 5cc5989f90..99f2352dc6 100644 --- a/sysdeps/i386/bzero.c +++ b/sysdeps/i386/bzero.c @@ -26,7 +26,7 @@ #ifdef __GNUC__ void -bzero (dstpp, len) +__bzero (dstpp, len) void *dstpp; size_t len; { @@ -75,6 +75,7 @@ bzero (dstpp, len) "0" (dstp), "c" (len), "a" (x) : "cx"); } +weak_alias (__bzero, bzero) #else #include <sysdeps/generic/bzero.c> diff --git a/sysdeps/i386/fpu/bits/mathinline.h b/sysdeps/i386/fpu/bits/mathinline.h index 55e9171459..edb6ee01d7 100644 --- a/sysdeps/i386/fpu/bits/mathinline.h +++ b/sysdeps/i386/fpu/bits/mathinline.h @@ -18,8 +18,9 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#ifndef _BITS_MATHINLINE_H -#define _BITS_MATHINLINE_H 1 +#ifndef _MATH_H +# error "Never use <bits/mathinline.h> directly; include <math.h> instead." +#endif #if defined __USE_ISOC9X && defined __GNUC__ && __GNUC__ >= 2 @@ -518,7 +519,7 @@ __finite (double __x) ("orl $0x800fffff, %0\n\t" "incl %0\n\t" "shrl $31, %0" - : "=q" (__result) : "0" (((int *) &__x)[1]) : "cc"); + : "=r" (__result) : "0" (((int *) &__x)[1]) : "cc"); return __result; } @@ -542,5 +543,3 @@ __inline_mathcode (__acosh1p, __x, \ #endif /* Not gcc <= 2.7. */ #endif /* __NO_MATH_INLINES */ #endif /* __GNUC__ */ - -#endif /* _BITS_MATHINLINE_H */ diff --git a/sysdeps/i386/i486/atomicity.h b/sysdeps/i386/i486/atomicity.h index 98a2531365..7157bc33d8 100644 --- a/sysdeps/i386/i486/atomicity.h +++ b/sysdeps/i386/i486/atomicity.h @@ -1,4 +1,4 @@ -/* Low-level functions for atomitc operations. ix86 version, x >= 4. +/* Low-level functions for atomic operations. ix86 version, x >= 4. Copyright (C) 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -41,7 +41,7 @@ atomic_add (volatile uint32_t *mem, int val) : : "ir" (val), "m" (*mem) : "memory"); } -static inline int +static inline char __attribute__ ((unused)) compare_and_swap (volatile long int *p, long int oldval, long int newval) { diff --git a/sysdeps/i386/i486/bits/string.h b/sysdeps/i386/i486/bits/string.h index 770f5c1e15..5e4abbc3e5 100644 --- a/sysdeps/i386/i486/bits/string.h +++ b/sysdeps/i386/i486/bits/string.h @@ -18,11 +18,17 @@ Boston, MA 02111-1307, USA. */ #ifndef _STRING_H -#error "Never use <bits/string.h> directly; include <string.h> instead." +# error "Never use <bits/string.h> directly; include <string.h> instead." #endif -/* We only provide optimizations for the GNU CC. */ -#if defined __GNUC__ && __GNUC__ >= 2 +/* The ix86 processors can access unaligned multi-byte variables. */ +#define _STRING_ARCH_unaligned 1 + + +/* We only provide optimizations if the user selects them and if + GNU CC is used. */ +#if !defined __NO_STRING_INLINES && defined __USE_STRING_INLINES \ + && defined __GNUC__ && __GNUC__ >= 2 #ifdef __cplusplus # define __STRING_INLINE inline @@ -30,6 +36,13 @@ # define __STRING_INLINE extern __inline #endif +/* The macros are used in some of the optimized implementations below. */ +#define __STRING_SMALL_GET16(src, idx) \ + (((src)[idx + 1] << 8) | (src)[idx]) +#define __STRING_SMALL_GET32(src, idx) \ + ((((src)[idx + 3] << 8 | (src)[idx + 2]) << 8 \ + | (src)[idx + 1]) << 8 | (src)[idx]) + /* Copy N bytes of SRC to DEST. */ #define _HAVE_STRING_ARCH_memcpy 1 @@ -355,9 +368,59 @@ __strlen_g (__const char *__str) #define _HAVE_STRING_ARCH_strcpy 1 #define strcpy(dest, src) \ (__extension__ (__builtin_constant_p (src) \ - ? (char *) memcpy (dest, src, strlen (src) + 1) \ + ? (sizeof (src[0]) == 1 && strlen (src) + 1 <= 8 \ + ? __strcpy_small (dest, src, strlen (src) + 1) \ + : (char *) memcpy (dest, src, strlen (src) + 1)) \ : __strcpy_g (dest, src))) +# define __strcpy_small(dest, src, srclen) \ + (__extension__ ({ char *__retval = (dest); \ + char *__cp = __retval; \ + switch (srclen) \ + { \ + case 1: \ + *((unsigned char *) __cp) = '\0'; \ + break; \ + case 2: \ + *((__uint16_t *) __cp) = \ + __STRING_SMALL_GET16 (src, 0); \ + break; \ + case 3: \ + *((__uint16_t *) __cp)++ = \ + __STRING_SMALL_GET16 (src, 0); \ + *((unsigned char *) __cp) = '\0'; \ + break; \ + case 4: \ + *((__uint32_t *) __cp) = \ + __STRING_SMALL_GET32 (src, 0); \ + break; \ + case 5: \ + *((__uint32_t *) __cp)++ = \ + __STRING_SMALL_GET32 (src, 0); \ + *((unsigned char *) __cp) = '\0'; \ + break; \ + case 6: \ + *((__uint32_t *) __cp)++ = \ + __STRING_SMALL_GET32 (src, 0); \ + *((__uint16_t *) __cp) = \ + __STRING_SMALL_GET16 (src, 4); \ + break; \ + case 7: \ + *((__uint32_t *) __cp)++ = \ + __STRING_SMALL_GET32 (src, 0); \ + *((__uint16_t *) __cp)++ = \ + __STRING_SMALL_GET16 (src, 4); \ + *((unsigned char *) __cp) = '\0'; \ + break; \ + case 8: \ + *((__uint32_t *) __cp)++ = \ + __STRING_SMALL_GET32 (src, 0); \ + *((__uint32_t *) __cp) = \ + __STRING_SMALL_GET32 (src, 4); \ + break; \ + } \ + __retval; })) + __STRING_INLINE char * __strcpy_g (char *__dest, __const char *__src) { @@ -398,43 +461,56 @@ __strcpy_g (char *__dest, __const char *__src) /* In glibc itself we use this symbol for namespace reasons. */ # define stpcpy(dest, src) __stpcpy (dest, src) -__STRING_INLINE char * -__stpcpy_small (char *__dest, __const char __src[], size_t __srclen) -{ - register char *__tmp = __dest; - switch (__srclen) - { - case 7: - *((unsigned short int *) __tmp)++ = *((unsigned short int *) __src)++; - case 5: - *((unsigned int *) __tmp)++ = *((unsigned int *) __src)++; - *((unsigned char *) __tmp) = '\0'; - return __tmp; - - case 8: - *((unsigned int *) __tmp)++ = *((unsigned int *) __src)++; - case 4: - *((unsigned int *) __tmp) = *((unsigned int *) __src); - return __tmp + 3; - - case 6: - *((unsigned int *) __tmp)++ = *((unsigned int *) __src)++; - case 2: - *((unsigned short int *) __tmp) = *((unsigned short int *) __src); - return __tmp + 1; - - case 3: - *((unsigned short int *) __tmp)++ = *((unsigned short int *) __src)++; - case 1: - *((unsigned char *) __tmp) = '\0'; - return __tmp; - - default: - break; - } - /* This should never happen. */ - return NULL; -} +# define __stpcpy_small(dest, src, srclen) \ + (__extension__ ({ char *__cp = (dest); \ + switch (srclen) \ + { \ + case 1: \ + *((unsigned char *) __cp) = '\0'; \ + break; \ + case 2: \ + *((__uint16_t *) __cp) = \ + __STRING_SMALL_GET16 (src, 0); \ + ++cp; \ + break; \ + case 3: \ + *((__uint16_t *) __cp)++ = \ + __STRING_SMALL_GET16 (src, 0); \ + *((unsigned char *) __cp) = '\0'; \ + break; \ + case 4: \ + *((__uint32_t *) __cp) = \ + __STRING_SMALL_GET32 (src, 0); \ + cp += 3; \ + break; \ + case 5: \ + *((__uint32_t *) __cp)++ = \ + __STRING_SMALL_GET32 (src, 0); \ + *((unsigned char *) __cp) = '\0'; \ + break; \ + case 6: \ + *((__uint32_t *) __cp)++ = \ + __STRING_SMALL_GET32 (src, 0); \ + *((__uint16_t *) __cp) = \ + __STRING_SMALL_GET16 (src, 4); \ + ++cp; \ + break; \ + case 7: \ + *((__uint32_t *) __cp)++ = \ + __STRING_SMALL_GET32 (src, 0); \ + *((__uint16_t *) __cp)++ = \ + __STRING_SMALL_GET16 (src, 4); \ + *((unsigned char *) __cp) = '\0'; \ + break; \ + case 8: \ + *((__uint32_t *) __cp)++ = \ + __STRING_SMALL_GET32 (src, 0); \ + *((__uint32_t *) __cp) = \ + __STRING_SMALL_GET32 (src, 4); \ + cp += 3; \ + break; \ + } \ + __cp; })) __STRING_INLINE char * __mempcpy_by4 (char *__dest, __const char *__src, size_t __srclen) @@ -1458,4 +1534,4 @@ __strstr_g (__const char *__haystack, __const char *__needle) #undef __STRING_INLINE -#endif /* GNU CC */ +#endif /* use string inlines && GNU CC */ diff --git a/sysdeps/i386/i586/bzero.S b/sysdeps/i386/i586/bzero.S index 2c75103492..84d2f709c1 100644 --- a/sysdeps/i386/i586/bzero.S +++ b/sysdeps/i386/i586/bzero.S @@ -1,2 +1,3 @@ -#define memset bzero +#define memset __bzero #include <sysdeps/i386/i586/memset.S> +weak_alias (__bzero, bzero) diff --git a/sysdeps/m68k/m68020/atomicity.h b/sysdeps/m68k/m68020/atomicity.h new file mode 100644 index 0000000000..d74b8194ad --- /dev/null +++ b/sysdeps/m68k/m68020/atomicity.h @@ -0,0 +1,65 @@ +/* Low-level functions for atomic operations. m680x0 version, x >= 2. + Copyright (C) 1997 Free Software Foundation, Inc. + Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>. + + 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _ATOMICITY_H +#define _ATOMICITY_H 1 + +#include <inttypes.h> + + +static inline int +__attribute__ ((unused)) +exchange_and_add (volatile uint32_t *mem, int val) +{ + register int result = *mem; + register int temp; + __asm__ __volatile__ ("1: move%.l %0,%1;" + " add%.l %2,%1;" + " cas%.l %0,%1,%3;" + " jbne 1b" + : "=d" (result), "=&d" (temp) + : "d" (val), "m" (*mem), "0" (result) : "memory"); + return result; +} + +static inline void +__attribute__ ((unused)) +atomic_add (volatile uint32_t *mem, int val) +{ + /* XXX Use cas here as well? */ + __asm__ __volatile__ ("add%.l %0,%1" + : : "ir" (val), "m" (*mem) : "memory"); +} + +static inline int +__attribute__ ((unused)) +compare_and_swap (volatile long int *p, long int oldval, long int newval) +{ + char ret; + long int readval; + + __asm__ __volatile__ ("cas%.l %2,%3,%1; seq %0" + : "=dm" (ret), "=m" (*p), "=d" (readval) + : "d" (newval), "m" (*p), "2" (oldval)); + return ret; +} + +#endif /* atomicity.h */ diff --git a/sysdeps/stub/atomicity.h b/sysdeps/stub/atomicity.h index 3916eebbcf..e9edc83a8d 100644 --- a/sysdeps/stub/atomicity.h +++ b/sysdeps/stub/atomicity.h @@ -1,4 +1,4 @@ -/* Low-level functions for atomitc operations. ix86 version, x >= 4. +/* Low-level functions for atomitc operations. Stub version. Copyright (C) 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. diff --git a/sysdeps/unix/inet/Subdirs b/sysdeps/unix/inet/Subdirs index 5043651cc5..647ec6a4a6 100644 --- a/sysdeps/unix/inet/Subdirs +++ b/sysdeps/unix/inet/Subdirs @@ -1,4 +1,5 @@ inet resolv +hesiod sunrpc nis diff --git a/sysdeps/vax/bzero.s b/sysdeps/vax/bzero.s index 5f90763d41..dff59ba667 100644 --- a/sysdeps/vax/bzero.s +++ b/sysdeps/vax/bzero.s @@ -39,7 +39,7 @@ #include "DEFS.h" -ENTRY(bzero, 0) +ENTRY(__bzero, 0) movl 4(ap),r3 jbr 2f 1: @@ -51,3 +51,4 @@ ENTRY(bzero, 0) jgtr 1b movc5 $0,(r3),$0,8(ap),(r3) ret +weak_alias (__bzero, bzero) |