diff options
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/alpha/htonl.S | 8 | ||||
-rw-r--r-- | sysdeps/alpha/htons.S | 8 | ||||
-rw-r--r-- | sysdeps/generic/bits/byteswap.h | 43 | ||||
-rw-r--r-- | sysdeps/generic/htonl.c | 17 | ||||
-rw-r--r-- | sysdeps/generic/htons.c | 15 | ||||
-rw-r--r-- | sysdeps/i386/bits/byteswap.h | 92 | ||||
-rw-r--r-- | sysdeps/i386/bits/htontoh.h | 79 | ||||
-rw-r--r-- | sysdeps/i386/htonl.S | 8 | ||||
-rw-r--r-- | sysdeps/i386/htons.S | 8 | ||||
-rw-r--r-- | sysdeps/i386/i486/htonl.S | 8 | ||||
-rw-r--r-- | sysdeps/m68k/fpu/fraiseexcpt.c | 30 | ||||
-rw-r--r-- | sysdeps/unix/i386/sysdep.h | 4 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/Dist | 1 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 2 | ||||
-rw-r--r-- | sysdeps/unix/sysv/linux/sys/fsuid.h (renamed from sysdeps/generic/bits/htontoh.h) | 21 | ||||
-rw-r--r-- | sysdeps/vax/htonl.s | 6 | ||||
-rw-r--r-- | sysdeps/vax/htons.s | 4 |
17 files changed, 192 insertions, 162 deletions
diff --git a/sysdeps/alpha/htonl.S b/sysdeps/alpha/htonl.S index c6e09f134f..4308192cbf 100644 --- a/sysdeps/alpha/htonl.S +++ b/sysdeps/alpha/htonl.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1996 Free Software Foundation, Inc. +/* Copyright (C) 1996, 1997 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 @@ -18,7 +18,7 @@ #include <sysdep.h> -ENTRY(__htonl) +ENTRY(htonl) #ifdef PROF ldgp gp, 0(pv) .set noat @@ -43,6 +43,4 @@ ENTRY(__htonl) END(__htonl) -strong_alias_asm(__htonl, __ntohl) -weak_alias(__htonl, htonl) -weak_alias(__htonl, ntohl) +weak_alias(htonl, ntohl) diff --git a/sysdeps/alpha/htons.S b/sysdeps/alpha/htons.S index 8d3aefe149..f65f0e0826 100644 --- a/sysdeps/alpha/htons.S +++ b/sysdeps/alpha/htons.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1996 Free Software Foundation, Inc. +/* Copyright (C) 1996, 1997 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 @@ -18,7 +18,7 @@ #include <sysdep.h> -ENTRY(__htons) +ENTRY(htons) #ifdef PROF ldgp gp, 0(pv) .set noat @@ -37,6 +37,4 @@ ENTRY(__htons) END(__htons) -strong_alias_asm(__htons, __ntohs) -weak_alias(__htons, htons) -weak_alias(__htons, ntohs) +weak_alias(htons, ntohs) diff --git a/sysdeps/generic/bits/byteswap.h b/sysdeps/generic/bits/byteswap.h new file mode 100644 index 0000000000..9404cc452e --- /dev/null +++ b/sysdeps/generic/bits/byteswap.h @@ -0,0 +1,43 @@ +/* Macros to swap the order of bytes in integer values. + Copyright (C) 1997 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 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 _BITS_BYTESWAP_H +#define _BITS_BYTESWAP_H 1 + +/* Swap bytes in 16 bit value. */ +#define __bswap_16(x) \ + ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) + +/* Swap bytes in 32 bit value. */ +#define __bswap_32(x) \ + ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ + (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) + +#if defined __GNUC__ && __GNUC__ >= 2 +/* Swap bytes in 64 bit value. */ +# define __bswap_64(x) \ + ({ union { unsigned long long int __ll; \ + unsigned long int __l[2]; } __v, __r; \ + __v.__ll = (x); \ + __r.__l[0] = __bswap_32 (__v.__l[1]); \ + __r.__l[1] = __bswap_32 (__v.__l[0]); \ + __r.__ll; }) +#endif + +#endif /* bits/byteswap.h */ diff --git a/sysdeps/generic/htonl.c b/sysdeps/generic/htonl.c index d460d40f89..f433075a0f 100644 --- a/sysdeps/generic/htonl.c +++ b/sysdeps/generic/htonl.c @@ -19,17 +19,18 @@ #include <netinet/in.h> #undef htonl +#undef ntohl u_int32_t -__htonl (x) +htonl (x) u_int32_t x; { -#if BYTE_ORDER == LITTLE_ENDIAN - x = (x << 24) | ((x & 0xff00) << 8) | ((x & 0xff0000) >> 8) | (x >> 24); -#endif - +#if BYTE_ORDER == BIG_ENDIAN return x; +#elif BYTE_ORDER == LITTLE_ENDIAN + return __bswap_32 (x); +#else +# error "What kind of system is this?" +#endif } -strong_alias (__htonl, __ntohl) -weak_alias (__htonl, htonl) -weak_alias (__ntohl, ntohl) +weak_alias (htonl, ntohl) diff --git a/sysdeps/generic/htons.c b/sysdeps/generic/htons.c index a0a0e81adf..8914f74f2e 100644 --- a/sysdeps/generic/htons.c +++ b/sysdeps/generic/htons.c @@ -19,17 +19,18 @@ #include <netinet/in.h> #undef htons +#undef ntohs u_int16_t __htons (x) u_int16_t x; { -#if BYTE_ORDER == LITTLE_ENDIAN - x = (x << 8) | (x >> 8); -#endif - +#if BYTE_ORDER == BIG_ENDIAN return x; +#elif BYTE_ORDER == LITTLE_ENDIAN + return __bswap_16 (x); +#else +# error "What kind of system is this?" +#endif } -strong_alias (__htons, __ntohs) -weak_alias (__htons, htons) -weak_alias (__ntohs, ntohs) +weak_alias (htons, ntohs) diff --git a/sysdeps/i386/bits/byteswap.h b/sysdeps/i386/bits/byteswap.h new file mode 100644 index 0000000000..326962e621 --- /dev/null +++ b/sysdeps/i386/bits/byteswap.h @@ -0,0 +1,92 @@ +/* Macros to swap the order of bytes in integer values. + Copyright (C) 1997 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 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 _BITS_BYTESWAP_H +#define _BITS_BYTESWAP_H 1 + +/* Swap bytes in 16 bit value. */ +#define __bswap_constant_16(x) \ + ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) + +#if defined __GNUC__ && __GNUC__ >= 2 +# define __bswap_16(x) \ + ({ register unsigned short int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_16 (x); \ + else \ + __asm__ __volatile__ ("rorw $8, %w0" \ + : "=q" (__v) \ + : "0" ((unsigned short int) (x)) \ + : "cc"); \ + __v; }) +#else +/* This is better than nothing. */ +# define __bswap_16(x) __bswap_constant_16 (x) +#endif + + +/* Swap bytes in 32 bit value. */ +#define __bswap_constant_32(x) \ + ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ + (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) + +#if defined __GNUC__ && __GNUC__ >= 2 +/* To swap the bytes in a word the i486 processors and up provide the + `bswap' opcode. On i386 we have to use three instructions. */ +# if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__ +# define __bswap_32(x) \ + ({ register unsigned int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_32 (x); \ + else \ + __asm__ __volatile__ ("rorw $8, %w0;" \ + "rorl $16, %0;" \ + "rorw $8, %w0" \ + : "=q" (__v) \ + : "0" ((unsigned int) (x)) \ + : "cc"); \ + __v; }) +# else +# define __bswap_32(x) \ + ({ register unsigned int __v; \ + if (__builtin_constant_p (x)) \ + __v = __bswap_constant_32 (x); \ + else \ + __asm__ __volatile__ ("bswap %0" \ + : "=r" (__v) \ + : "0" ((unsigned int) (x))); \ + __v; }) +# endif +#else +# define __bswap_32(x) __bswap_constant_32 (x) +#endif + + +#if defined __GNUC__ && __GNUC__ >= 2 +/* Swap bytes in 64 bit value. */ +# define __bswap_64(x) \ + ({ union { unsigned long long int __ll; \ + unsigned long int __l[2]; } __v, __r; \ + __v.__ll = (x); \ + __r.__l[0] = __bswap_32 (__v.__l[1]); \ + __r.__l[1] = __bswap_32 (__v.__l[0]); \ + __r.__ll; }) +#endif + +#endif /* bits/byteswap.h */ diff --git a/sysdeps/i386/bits/htontoh.h b/sysdeps/i386/bits/htontoh.h deleted file mode 100644 index 590b509875..0000000000 --- a/sysdeps/i386/bits/htontoh.h +++ /dev/null @@ -1,79 +0,0 @@ -/* Copyright (C) 1997 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 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 _NETINET_IN_H -# error "Don't include this file directly, use <netinet/in.h>" -#endif - -#if defined __GNUC__ && __GNUC__ >= 2 -/* We can use inline assembler instructions to optimize the code. */ - -/* To swap the bytes in a word the i486 processors and up provide the - `bswap' opcode. On i386 we have to use three instructions. */ -# if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__ - -extern __inline u_int32_t -__ntohl (u_int32_t netlong) -{ - register u_int32_t hostlong; - - __asm__ ("rorw $8, %w0; rorl $16, %0; rorw $8, %w0" - : "=r" (hostlong) - : "0" (netlong)); - - return hostlong; -} - -# else - -extern __inline u_int32_t -__ntohl (u_int32_t netlong) -{ - register u_int32_t hostlong; - - __asm__ ("bswap %0" : "=r" (hostlong) : "0" (netlong)); - - return hostlong; -} - -# endif - -/* For a short word we have a simple solution. */ -extern __inline u_int16_t -__ntohs (u_int16_t netshort) -{ - register u_int16_t hostshort; - - __asm__ ("rorw $8, %w0" : "=r" (hostshort) : "0" (netshort)); -} - - -/* The other direction can be handled with the same functions. */ -extern __inline u_int32_t -__htonl (u_int32_t hostlong) -{ - return __ntohl (hostlong); -} - -extern __inline u_int16_t -__htons (u_int16_t hostshort) -{ - return __ntohs (hostshort); -} - -#endif /* GNU CC */ diff --git a/sysdeps/i386/htonl.S b/sysdeps/i386/htonl.S index 73dd1e9bea..9c87be6392 100644 --- a/sysdeps/i386/htonl.S +++ b/sysdeps/i386/htonl.S @@ -26,14 +26,12 @@ */ .text -ENTRY (__htonl) +ENTRY (htonl) movl 4(%esp), %eax rorw $8, %ax rorl $16, %eax rorw $8, %ax ret -END (__htonl) +END (htonl) -strong_alias (__htonl, __ntohl) -weak_alias (__htonl, htonl) -weak_alias (__ntohl, ntohl) +weak_alias (htonl, ntohl) diff --git a/sysdeps/i386/htons.S b/sysdeps/i386/htons.S index 5d0f59c92b..b0539c55cd 100644 --- a/sysdeps/i386/htons.S +++ b/sysdeps/i386/htons.S @@ -26,13 +26,11 @@ */ .text -ENTRY (__htons) +ENTRY (htons) movl 4(%esp), %eax andl $0xffff, %eax rorw $8, %ax ret -END (__htons) +END (htons) -strong_alias (__htons, __ntohs) -weak_alias (__htons, htons) -weak_alias (__ntohs, ntohs) +weak_alias (htons, ntohs) diff --git a/sysdeps/i386/i486/htonl.S b/sysdeps/i386/i486/htonl.S index cf3a94fc76..a61b339b81 100644 --- a/sysdeps/i386/i486/htonl.S +++ b/sysdeps/i386/i486/htonl.S @@ -26,12 +26,10 @@ */ .text -ENTRY (__htonl) +ENTRY (htonl) movl 4(%esp), %eax bswap %eax ret -END (__htonl) +END (htonl) -strong_alias (__htonl, __ntohl) -weak_alias (__htonl, htonl) -weak_alias (__ntohl, ntohl) +weak_alias (htonl, ntohl) diff --git a/sysdeps/m68k/fpu/fraiseexcpt.c b/sysdeps/m68k/fpu/fraiseexcpt.c index d509604e28..bc49c9c71f 100644 --- a/sysdeps/m68k/fpu/fraiseexcpt.c +++ b/sysdeps/m68k/fpu/fraiseexcpt.c @@ -48,43 +48,17 @@ feraiseexcept (int excepts) /* Next: overflow. */ if (excepts & FE_OVERFLOW) { - /* We cannot raise the overflow exception without also setting the - inexact flag. Restore it after the operation, unless it should - be set anyway. */ long double d = LDBL_MAX; - fexcept_t fpsr; - __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); - __asm__ __volatile__ ("fmul%.x %0,%0" : "=f" (d) : "0" (d)); - if (!((excepts | fpsr) & FE_INEXACT)) - { - __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); - fpsr &= ~FE_INEXACT; - __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); - } - else - __asm__ ("fnop"); + __asm__ __volatile__ ("fmul%.x %0,%0; fnop" : "=f" (d) : "0" (d)); } /* Next: underflow. */ if (excepts & FE_UNDERFLOW) { - /* We cannot raise the underflow exception without also setting the - inexact flag. Restore it after the operation, unless it should - be set anyway. */ long double d = -LDBL_MAX; - fexcept_t fpsr; - __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); - __asm__ __volatile__ ("fetox%.x %0" : "=f" (d) : "0" (d)); - if (!((excepts | fpsr) & FE_INEXACT)) - { - __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); - fpsr &= ~FE_INEXACT; - __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); - } - else - __asm__ ("fnop"); + __asm__ __volatile__ ("fetox%.x %0; fnop" : "=f" (d) : "0" (d)); } /* Last: inexact. */ diff --git a/sysdeps/unix/i386/sysdep.h b/sysdeps/unix/i386/sysdep.h index 08bc0ba51c..97fb1dc4a2 100644 --- a/sysdeps/unix/i386/sysdep.h +++ b/sysdeps/unix/i386/sysdep.h @@ -26,9 +26,7 @@ #define DO_CALL(syscall_name, args) \ lea SYS_ify (syscall_name), %eax; \ - /* lcall $7, $0; */ \ - /* Above loses; GAS bug. */ \ - .byte 0x9a, 0, 0, 0, 0, 7, 0 + lcall $7, $0 #define r0 %eax /* Normal return-value register. */ #define r1 %edx /* Secondary return-value register. */ diff --git a/sysdeps/unix/sysv/linux/Dist b/sysdeps/unix/sysv/linux/Dist index 9272c06fa4..bdc333a5af 100644 --- a/sysdeps/unix/sysv/linux/Dist +++ b/sysdeps/unix/sysv/linux/Dist @@ -30,6 +30,7 @@ netipx/ipx.h nfs/nfs.h sys/acct.h sys/debugreg.h +sys/fsuid.h sys/io.h sys/kd.h sys/kdaemon.h diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 1c5da4b9bf..ed9ae873fd 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -11,7 +11,7 @@ sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h sys/mtio.h \ sys/module.h sys/io.h sys/klog.h sys/kdaemon.h \ sys/user.h sys/sysmacros.h sys/procfs.h \ sys/debugreg.h sys/kd.h sys/soundcard.h sys/vt.h \ - sys/quota.h + sys/quota.h sys/fsuid.h install-others += $(inst_includedir)/bits/syscall.h diff --git a/sysdeps/generic/bits/htontoh.h b/sysdeps/unix/sysv/linux/sys/fsuid.h index fa4efed867..8185b95724 100644 --- a/sysdeps/generic/bits/htontoh.h +++ b/sysdeps/unix/sysv/linux/sys/fsuid.h @@ -16,8 +16,21 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#ifndef _NETINET_IN_H -# error "Don't include this file directly, use <netinet/in.h>" -#endif +#ifndef _SYS_FSUID_H +#define _SYS_FSUID_H 1 -/* We cannot give generic optimized versions here. */ +#include <features.h> +#include <gnu/types.h> + +__BEGIN_DECLS + +/* Change uid used for file access control to UID, without affecting + other priveledges (such as who can send signals at the process). */ +extern int setfsuid __P ((__uid_t __uid)); + +/* Ditto for group id. */ +extern int setfsgid __P ((__gid_t __gid)); + +__END_DECLS + +#endif /* fsuid.h */ diff --git a/sysdeps/vax/htonl.s b/sysdeps/vax/htonl.s index 93e13ea9a1..ba399865ec 100644 --- a/sysdeps/vax/htonl.s +++ b/sysdeps/vax/htonl.s @@ -23,11 +23,9 @@ #include "DEFS.h" -ENTRY(__htonl, 0) +ENTRY(htonl, 0) rotl $-8,4(ap),r0 insv r0,$16,$8,r0 movb 7(ap),r0 ret -strong_alias (__htonl, __ntohl) -weak_alias (__htonl, htonl) -weak_alias (__ntohl, ntohl) +weak_alias (htonl, ntohl) diff --git a/sysdeps/vax/htons.s b/sysdeps/vax/htons.s index 16964c2861..1e781a17c9 100644 --- a/sysdeps/vax/htons.s +++ b/sysdeps/vax/htons.s @@ -28,6 +28,4 @@ ENTRY(htons, 0) movb 5(ap),r0 movzwl r0,r0 ret -strong_alias (__htons, __ntohs) -weak_alias (__htons, htons) -weak_alias (__ntohs, ntohs) +weak_alias (htons, ntohs) |