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authorUlrich Drepper <drepper@redhat.com>1999-07-25 23:21:20 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-25 23:21:20 +0000
commit722c33bbb6d2984cf537f0d3669617fba041fb50 (patch)
tree2a7f596c5e9979123c3833a1684a2d3516c067f9 /sysdeps/i386/bits
parent788e8e7c221825916e6ab11f0079d4c5ede8a057 (diff)
Update.
* string/bits/string2.h: Fix aliasing problems. * sysdeps/i386/i486/bits/string.h: Likewise. * sysdeps/i386/bits/string.h: Likewise. 1998-12-28 Geoff Keating <geoffk@ozemail.com.au> * sysdeps/powerpc/dl-machine.c: Handle shared library profiling. * elf/rtld.c (dl_main): Don't call malloc() between re-relocating the dynamic linker and running the application's crt0. 1999-07-21 Paul D. Smith <psmith@gnu.org> * sysdeps/generic/glob.c: Move getlogin{,_r} prototypes below glob.h to get __P() macro. * posix/fnmatch.c (internal_fnmatch): Use K&R definition syntax, not ANSI. (__strchrnul): This won't exist outside GLIBC, so create one. 1999-07-25 Jakub Jelinek <jj@ultra.linux.cz> * sysdeps/unix/sysv/linux/sparc/bits/types.h: Always define __qaddr_t. __ino64_t should be 32bit unsigned type on sparc32. Define __off64_t to __quad_t instead of __int64_t. Make __pic_pid_t unsigned on sparc32. 1999-07-25 Andreas Jaeger <aj@arthur.rhein-neckar.de> * localedata/tst-rpmatch.sh: Use "&" instead of "§" to avoid a bug in bash 2.03. 1999-07-25 Ulrich Drepper <drepper@cygnus.com>
Diffstat (limited to 'sysdeps/i386/bits')
-rw-r--r--sysdeps/i386/bits/string.h92
1 files changed, 52 insertions, 40 deletions
diff --git a/sysdeps/i386/bits/string.h b/sysdeps/i386/bits/string.h
index 1ea0571680..5f4f58a6db 100644
--- a/sysdeps/i386/bits/string.h
+++ b/sysdeps/i386/bits/string.h
@@ -54,59 +54,65 @@ __STRING_INLINE void *
__memcpy_c (void *__dest, __const void *__src, size_t __n)
{
register unsigned long int __d0, __d1, __d2;
+ union {
+ unsigned int __ui;
+ unsigned short int __usi;
+ unsigned char __uc;
+ } *__u = __dest;
switch (__n)
{
case 0:
return __dest;
case 1:
- *(unsigned char *) __dest = *(const unsigned char *) __src;
+ __u->__uc = *(const unsigned char *) __src;
return __dest;
case 2:
- *(unsigned short int *) __dest = *(const unsigned short int *) __src;
+ __u->__usi = *(const unsigned short int *) __src;
return __dest;
case 3:
- *(unsigned short int *) __dest = *(const unsigned short int *) __src;
- *(2 + (unsigned char *) __dest) = *(2 + (const unsigned char *) __src);
+ __u->__usi = *(const unsigned short int *) __src;
+ __u = (void *) __u + 2;
+ __u->__uc = *(2 + (const unsigned char *) __src);
return __dest;
case 4:
- *(unsigned long int *) __dest = *(const unsigned long int *) __src;
+ __u->__ui = *(const unsigned int *) __src;
return __dest;
- case 6: /* for ethernet addresses */
- *(unsigned long int *) __dest = *(const unsigned long int *) __src;
- *(2 + (unsigned short int *) __dest) =
- *(2 + (const unsigned short int *) __src);
+ case 6:
+ __u->__ui = *(const unsigned int *) __src;
+ __u = (void *) __u + 4;
+ __u->__usi = *(2 + (const unsigned short int *) __src);
return __dest;
case 8:
- *(unsigned long int *) __dest = *(const unsigned long int *) __src;
- *(1 + (unsigned long int *) __dest) =
- *(1 + (const unsigned long int *) __src);
+ __u->__ui = *(const unsigned int *) __src;
+ __u = (void *) __u + 4;
+ __u->__ui = *(1 + (const unsigned int *) __src);
return __dest;
case 12:
- *(unsigned long int *) __dest = *(const unsigned long int *) __src;
- *(1 + (unsigned long int *) __dest) =
- *(1 + (const unsigned long int *) __src);
- *(2 + (unsigned long int *) __dest) =
- *(2 + (const unsigned long int *) __src);
+ __u->__ui = *(const unsigned int *) __src;
+ __u = (void *) __u + 4;
+ __u->__ui = *(1 + (const unsigned int *) __src);
+ __u = (void *) __u + 4;
+ __u->__ui = *(2 + (const unsigned int *) __src);
return __dest;
case 16:
- *(unsigned long int *) __dest = *(const unsigned long int *) __src;
- *(1 + (unsigned long int *) __dest) =
- *(1 + (const unsigned long int *) __src);
- *(2 + (unsigned long int *) __dest) =
- *(2 + (const unsigned long int *) __src);
- *(3 + (unsigned long int *) __dest) =
- *(3 + (const unsigned long int *) __src);
+ __u->__ui = *(const unsigned int *) __src;
+ __u = (void *) __u + 4;
+ __u->__ui = *(1 + (const unsigned int *) __src);
+ __u = (void *) __u + 4;
+ __u->__ui = *(2 + (const unsigned int *) __src);
+ __u = (void *) __u + 4;
+ __u->__ui = *(3 + (const unsigned int *) __src);
return __dest;
case 20:
- *(unsigned long int *) __dest = *(const unsigned long int *) __src;
- *(1 + (unsigned long int *) __dest) =
- *(1 + (const unsigned long int *) __src);
- *(2 + (unsigned long int *) __dest) =
- *(2 + (const unsigned long int *) __src);
- *(3 + (unsigned long int *) __dest) =
- *(3 + (const unsigned long int *) __src);
- *(4 + (unsigned long int *) __dest) =
- *(4 + (const unsigned long int *) __src);
+ __u->__ui = *(const unsigned int *) __src;
+ __u = (void *) __u + 4;
+ __u->__ui = *(1 + (const unsigned int *) __src);
+ __u = (void *) __u + 4;
+ __u->__ui = *(2 + (const unsigned int *) __src);
+ __u = (void *) __u + 4;
+ __u->__ui = *(3 + (const unsigned int *) __src);
+ __u = (void *) __u + 4;
+ __u->__ui = *(4 + (const unsigned int *) __src);
return __dest;
}
#define __COMMON_CODE(x) \
@@ -115,7 +121,7 @@ __memcpy_c (void *__dest, __const void *__src, size_t __n)
"rep; movsl" \
x \
: "=&c" (__d0), "=&D" (__d1), "=&S" (__d2) \
- : "0" (__n / 4), "1" (__dest), "2" (__src) \
+ : "0" (__n / 4), "1" (&__u->__uc), "2" (__src) \
: "memory");
switch (__n % 4)
@@ -184,22 +190,28 @@ __STRING_INLINE void *
__memset_cc (void *__s, unsigned long int __pattern, size_t __n)
{
register unsigned long int __d0, __d1;
+ union {
+ unsigned int __ui;
+ unsigned short int __usi;
+ unsigned char __uc;
+ } *__u = __s;
switch (__n)
{
case 0:
return __s;
case 1:
- *(unsigned char *) __s = __pattern;
+ __u->__uc = __pattern;
return __s;
case 2:
- *(unsigned short int *) __s = __pattern;
+ __u->__usi = __pattern;
return __s;
case 3:
- *(unsigned short int *) __s = __pattern;
- *(2 + (unsigned char *) __s) = __pattern;
+ __u->__usi = __pattern;
+ __u = __extension__ ((void *) __u + 1);
+ __u->__uc = __pattern;
return __s;
case 4:
- *(unsigned long *) __s = __pattern;
+ __u->__ui = __pattern;
return __s;
}
#define __COMMON_CODE(x) \
@@ -208,7 +220,7 @@ __memset_cc (void *__s, unsigned long int __pattern, size_t __n)
"rep; stosl" \
x \
: "=&c" (__d0), "=&D" (__d1) \
- : "a" (__pattern), "0" (__n / 4), "1" (__s) \
+ : "a" (__pattern), "0" (__n / 4), "1" (&__u->__uc) \
: "memory")
switch (__n % 4)