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-rw-r--r--src/arch/x86/core/x86_string.c84
-rw-r--r--src/arch/x86/include/bits/string.h18
2 files changed, 0 insertions, 102 deletions
diff --git a/src/arch/x86/core/x86_string.c b/src/arch/x86/core/x86_string.c
index d48347c96..59e0eaae1 100644
--- a/src/arch/x86/core/x86_string.c
+++ b/src/arch/x86/core/x86_string.c
@@ -104,87 +104,3 @@ void * __memmove ( void *dest, const void *src, size_t len ) {
return __memcpy_reverse ( dest, src, len );
}
}
-
-/**
- * Swap memory areas
- *
- * @v dest Destination address
- * @v src Source address
- * @v len Length
- * @ret dest Destination address
- */
-void * memswap ( void *dest, void *src, size_t len ) {
- size_t discard_c;
- int discard;
-
- __asm__ __volatile__ ( "\n1:\n\t"
- "dec %2\n\t"
- "js 2f\n\t"
- "movb (%0,%2), %b3\n\t"
- "xchgb (%1,%2), %b3\n\t"
- "movb %b3, (%0,%2)\n\t"
- "jmp 1b\n\t"
- "2:\n\t"
- : "=r" ( src ), "=r" ( dest ),
- "=&c" ( discard_c ), "=&q" ( discard )
- : "0" ( src ), "1" ( dest ), "2" ( len )
- : "memory" );
-
- return dest;
-}
-
-/**
- * Calculate length of string
- *
- * @v string String
- * @ret len Length (excluding NUL)
- */
-size_t strlen ( const char *string ) {
- const char *discard_D;
- size_t len_plus_one;
-
- __asm__ __volatile__ ( "repne scasb\n\t"
- "not %1\n\t"
- : "=&D" ( discard_D ), "=&c" ( len_plus_one )
- : "0" ( string ), "1" ( -1UL ), "a" ( 0 ) );
-
- return ( len_plus_one - 1 );
-}
-
-/**
- * Compare strings (up to a specified length)
- *
- * @v str1 First string
- * @v str2 Second string
- * @v len Maximum length
- * @ret diff Difference
- */
-int strncmp ( const char *str1, const char *str2, size_t len ) {
- const void *discard_S;
- const void *discard_D;
- size_t discard_c;
- int diff;
-
- __asm__ __volatile__ ( "\n1:\n\t"
- "dec %2\n\t"
- "js 2f\n\t"
- "lodsb\n\t"
- "scasb\n\t"
- "jne 3f\n\t"
- "testb %b3, %b3\n\t"
- "jnz 1b\n\t"
- /* Equal */
- "\n2:\n\t"
- "xor %3, %3\n\t"
- "jmp 4f\n\t"
- /* Not equal; CF indicates difference */
- "\n3:\n\t"
- "sbb %3, %3\n\t"
- "orb $1, %b3\n\t"
- "\n4:\n\t"
- : "=&S" ( discard_S ), "=&D" ( discard_D ),
- "=&c" ( discard_c ), "=&a" ( diff )
- : "0" ( str1 ), "1" ( str2 ), "2" ( len ) );
-
- return diff;
-}
diff --git a/src/arch/x86/include/bits/string.h b/src/arch/x86/include/bits/string.h
index dce994983..5c4f4b8a3 100644
--- a/src/arch/x86/include/bits/string.h
+++ b/src/arch/x86/include/bits/string.h
@@ -28,8 +28,6 @@ FILE_LICENCE ( GPL2_OR_LATER );
*
*/
-#define __HAVE_ARCH_MEMCPY
-
extern void * __memcpy ( void *dest, const void *src, size_t len );
extern void * __memcpy_reverse ( void *dest, const void *src, size_t len );
@@ -169,8 +167,6 @@ memcpy ( void *dest, const void *src, size_t len ) {
}
}
-#define __HAVE_ARCH_MEMMOVE
-
extern void * __memmove ( void *dest, const void *src, size_t len );
/**
@@ -196,8 +192,6 @@ memmove ( void *dest, const void *src, size_t len ) {
}
}
-#define __HAVE_ARCH_MEMSET
-
/**
* Fill memory region
*
@@ -217,16 +211,4 @@ static inline void * memset ( void *dest, int fill, size_t len ) {
return dest;
}
-#define __HAVE_ARCH_MEMSWAP
-
-extern void * memswap ( void *dest, void *src, size_t len );
-
-#define __HAVE_ARCH_STRNCMP
-
-extern int strncmp ( const char *str1, const char *str2, size_t len );
-
-#define __HAVE_ARCH_STRLEN
-
-extern size_t strlen ( const char *string );
-
#endif /* X86_BITS_STRING_H */