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Move mempcpy, strcpy and stpcpy inlines to string/string-inlines.c as compatibility

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symbols as they are no longer used. Fix compat symbols for __strpbrk inlines.

        [BZ #18712]
        * string/string-inlines.c (__STRING2_COPY_TYPE): Add, moved from string2.h.
        (__old_mempcpy_small): Likewise.
        (__old_strcpy_small): Likewise.
        (__old_stpcpy_small): Likewise.
        (__old_strpbrk_c2): Fix compat symbol name.
        (__old_strpbrk_c3): Likewise.
        * string/bits/string2.h (__STRING2_COPY_TYPE): Remove.
        (__mempcpy_small): Remove.
        (__strcpy_small): Remove.
        (__stpcpy_small): Remove.
This commit is contained in:
Wilco Dijkstra
2016-04-18 15:26:11 +01:00
parent 5379c09148
commit d20dce250a
3 changed files with 361 additions and 350 deletions
Download Patch File Download Diff File Expand all files Collapse all files

349
string/string-inlines.c
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@ -108,7 +108,7 @@ __old_strspn_c3 (const char *__s, int __accept1, int __accept2,
compat_symbol (libc, __old_strspn_c3, __strspn_c3, GLIBC_2_1_1);
char *
__strpbrk_c2 (const char *__s, int __accept1, int __accept2)
__old_strpbrk_c2 (const char *__s, int __accept1, int __accept2)
{
/* Please note that __accept1 and __accept2 never can be '\0'. */
while (*__s != '\0' && *__s != __accept1 && *__s != __accept2)
@ -118,7 +118,7 @@ __strpbrk_c2 (const char *__s, int __accept1, int __accept2)
compat_symbol (libc, __old_strpbrk_c2, __strpbrk_c2, GLIBC_2_1_1);
char *
__strpbrk_c3 (const char *__s, int __accept1, int __accept2, int __accept3)
__old_strpbrk_c3 (const char *__s, int __accept1, int __accept2, int __accept3)
{
/* Please note that __accept1 to __accept3 never can be '\0'. */
while (*__s != '\0' && *__s != __accept1 && *__s != __accept2
@ -128,4 +128,349 @@ __strpbrk_c3 (const char *__s, int __accept1, int __accept2, int __accept3)
}
compat_symbol (libc, __old_strpbrk_c3, __strpbrk_c3, GLIBC_2_1_1);
/* These are a few types we need for the optimizations if we cannot
use unaligned memory accesses. */
# define __STRING2_COPY_TYPE(N) \
typedef struct { unsigned char __arr[N]; } \
__attribute__ ((__packed__)) __STRING2_COPY_ARR##N
__STRING2_COPY_TYPE (2);
__STRING2_COPY_TYPE (3);
__STRING2_COPY_TYPE (4);
__STRING2_COPY_TYPE (5);
__STRING2_COPY_TYPE (6);
__STRING2_COPY_TYPE (7);
__STRING2_COPY_TYPE (8);
# undef __STRING2_COPY_TYPE
# if _STRING_INLINE_unaligned
void *
__old_mempcpy_small (void *__dest1,
char __src0_1, char __src2_1, char __src4_1, char __src6_1,
__uint16_t __src0_2, __uint16_t __src4_2,
__uint32_t __src0_4, __uint32_t __src4_4,
size_t __srclen)
{
union {
__uint32_t __ui;
__uint16_t __usi;
unsigned char __uc;
unsigned char __c;
} *__u = __dest1;
switch ((unsigned int) __srclen)
{
case 1:
__u->__c = __src0_1;
__u = __extension__ ((void *) __u + 1);
break;
case 2:
__u->__usi = __src0_2;
__u = __extension__ ((void *) __u + 2);
break;
case 3:
__u->__usi = __src0_2;
__u = __extension__ ((void *) __u + 2);
__u->__c = __src2_1;
__u = __extension__ ((void *) __u + 1);
break;
case 4:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
break;
case 5:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__c = __src4_1;
__u = __extension__ ((void *) __u + 1);
break;
case 6:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = __extension__ ((void *) __u + 2);
break;
case 7:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = __extension__ ((void *) __u + 2);
__u->__c = __src6_1;
__u = __extension__ ((void *) __u + 1);
break;
case 8:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__ui = __src4_4;
__u = __extension__ ((void *) __u + 4);
break;
}
return (void *) __u;
}
# else
void *
__old_mempcpy_small (void *__dest, char __src1,
__STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
__STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
__STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
__STRING2_COPY_ARR8 __src8, size_t __srclen)
{
union {
char __c;
__STRING2_COPY_ARR2 __sca2;
__STRING2_COPY_ARR3 __sca3;
__STRING2_COPY_ARR4 __sca4;
__STRING2_COPY_ARR5 __sca5;
__STRING2_COPY_ARR6 __sca6;
__STRING2_COPY_ARR7 __sca7;
__STRING2_COPY_ARR8 __sca8;
} *__u = __dest;
switch ((unsigned int) __srclen)
{
case 1:
__u->__c = __src1;
break;
case 2:
__extension__ __u->__sca2 = __src2;
break;
case 3:
__extension__ __u->__sca3 = __src3;
break;
case 4:
__extension__ __u->__sca4 = __src4;
break;
case 5:
__extension__ __u->__sca5 = __src5;
break;
case 6:
__extension__ __u->__sca6 = __src6;
break;
case 7:
__extension__ __u->__sca7 = __src7;
break;
case 8:
__extension__ __u->__sca8 = __src8;
break;
}
return __extension__ ((void *) __u + __srclen);
}
# endif
compat_symbol (libc, __old_mempcpy_small, __mempcpy_small, GLIBC_2_1_1);
# if _STRING_INLINE_unaligned
char *
__old_strcpy_small (char *__dest,
__uint16_t __src0_2, __uint16_t __src4_2,
__uint32_t __src0_4, __uint32_t __src4_4,
size_t __srclen)
{
union {
__uint32_t __ui;
__uint16_t __usi;
unsigned char __uc;
} *__u = (void *) __dest;
switch ((unsigned int) __srclen)
{
case 1:
__u->__uc = '\0';
break;
case 2:
__u->__usi = __src0_2;
break;
case 3:
__u->__usi = __src0_2;
__u = __extension__ ((void *) __u + 2);
__u->__uc = '\0';
break;
case 4:
__u->__ui = __src0_4;
break;
case 5:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__uc = '\0';
break;
case 6:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
break;
case 7:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = __extension__ ((void *) __u + 2);
__u->__uc = '\0';
break;
case 8:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__ui = __src4_4;
break;
}
return __dest;
}
# else
char *
__old_strcpy_small (char *__dest,
__STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
__STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
__STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
__STRING2_COPY_ARR8 __src8, size_t __srclen)
{
union {
char __c;
__STRING2_COPY_ARR2 __sca2;
__STRING2_COPY_ARR3 __sca3;
__STRING2_COPY_ARR4 __sca4;
__STRING2_COPY_ARR5 __sca5;
__STRING2_COPY_ARR6 __sca6;
__STRING2_COPY_ARR7 __sca7;
__STRING2_COPY_ARR8 __sca8;
} *__u = (void *) __dest;
switch ((unsigned int) __srclen)
{
case 1:
__u->__c = '\0';
break;
case 2:
__extension__ __u->__sca2 = __src2;
break;
case 3:
__extension__ __u->__sca3 = __src3;
break;
case 4:
__extension__ __u->__sca4 = __src4;
break;
case 5:
__extension__ __u->__sca5 = __src5;
break;
case 6:
__extension__ __u->__sca6 = __src6;
break;
case 7:
__extension__ __u->__sca7 = __src7;
break;
case 8:
__extension__ __u->__sca8 = __src8;
break;
}
return __dest;
}
# endif
compat_symbol (libc, __old_strcpy_small, __strcpy_small, GLIBC_2_1_1);
# if _STRING_INLINE_unaligned
char *
__old_stpcpy_small (char *__dest,
__uint16_t __src0_2, __uint16_t __src4_2,
__uint32_t __src0_4, __uint32_t __src4_4,
size_t __srclen)
{
union {
unsigned int __ui;
unsigned short int __usi;
unsigned char __uc;
char __c;
} *__u = (void *) __dest;
switch ((unsigned int) __srclen)
{
case 1:
__u->__uc = '\0';
break;
case 2:
__u->__usi = __src0_2;
__u = __extension__ ((void *) __u + 1);
break;
case 3:
__u->__usi = __src0_2;
__u = __extension__ ((void *) __u + 2);
__u->__uc = '\0';
break;
case 4:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 3);
break;
case 5:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__uc = '\0';
break;
case 6:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = __extension__ ((void *) __u + 1);
break;
case 7:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__usi = __src4_2;
__u = __extension__ ((void *) __u + 2);
__u->__uc = '\0';
break;
case 8:
__u->__ui = __src0_4;
__u = __extension__ ((void *) __u + 4);
__u->__ui = __src4_4;
__u = __extension__ ((void *) __u + 3);
break;
}
return &__u->__c;
}
# else
char *
__old_stpcpy_small (char *__dest,
__STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
__STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
__STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
__STRING2_COPY_ARR8 __src8, size_t __srclen)
{
union {
char __c;
__STRING2_COPY_ARR2 __sca2;
__STRING2_COPY_ARR3 __sca3;
__STRING2_COPY_ARR4 __sca4;
__STRING2_COPY_ARR5 __sca5;
__STRING2_COPY_ARR6 __sca6;
__STRING2_COPY_ARR7 __sca7;
__STRING2_COPY_ARR8 __sca8;
} *__u = (void *) __dest;
switch ((unsigned int) __srclen)
{
case 1:
__u->__c = '\0';
break;
case 2:
__extension__ __u->__sca2 = __src2;
break;
case 3:
__extension__ __u->__sca3 = __src3;
break;
case 4:
__extension__ __u->__sca4 = __src4;
break;
case 5:
__extension__ __u->__sca5 = __src5;
break;
case 6:
__extension__ __u->__sca6 = __src6;
break;
case 7:
__extension__ __u->__sca7 = __src7;
break;
case 8:
__extension__ __u->__sca8 = __src8;
break;
}
return __dest + __srclen - 1;
}
# endif
compat_symbol (libc, __old_stpcpy_small, __stpcpy_small, GLIBC_2_1_1);
#endif