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-rw-r--r--string/string-inlines.c349
1 files changed, 347 insertions, 2 deletions
diff --git a/string/string-inlines.c b/string/string-inlines.c
index 0648376..1091468 100644
--- a/string/string-inlines.c
+++ b/string/string-inlines.c
@@ -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
generated by cgit v1.1 at 2024-11-28 06:55:08 +0000