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Commit 4d14a459 authored by David S. Miller's avatar David S. Miller
Browse files

sparc: Stop trying to be so fancy and use __builtin_{memcpy,memset}() 



This mirrors commit ff60fab7
(x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy)

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent fb34035e

arch/sparc/include/asm/string_32.h

+2 −76
Original line number Diff line number Diff line
@@ -16,8 +16,6 @@ 
#ifdef __KERNEL__



extern void __memmove(void *,const void *,__kernel_size_t);

extern __kernel_size_t __memcpy(void *,const void *,__kernel_size_t);

extern __kernel_size_t __memset(void *,int,__kernel_size_t);



#ifndef EXPORT_SYMTAB_STROPS
@@ -32,82 +30,10 @@ extern __kernel_size_t __memset(void *,int,__kernel_size_t); 
})



#define __HAVE_ARCH_MEMCPY



static inline void *__constant_memcpy(void *to, const void *from, __kernel_size_t n)

{

	extern void __copy_1page(void *, const void *);



	if(n <= 32) {

		__builtin_memcpy(to, from, n);

	} else if (((unsigned int) to & 7) != 0) {

		/* Destination is not aligned on the double-word boundary */

		__memcpy(to, from, n);

	} else {

		switch(n) {

		case PAGE_SIZE:

			__copy_1page(to, from);

			break;

		default:

			__memcpy(to, from, n);

			break;

		}

	}

	return to;

}



static inline void *__nonconstant_memcpy(void *to, const void *from, __kernel_size_t n)

{

	__memcpy(to, from, n);

	return to;

}



#undef memcpy

#define memcpy(t, f, n) \

(__builtin_constant_p(n) ? \

 __constant_memcpy((t),(f),(n)) : \

 __nonconstant_memcpy((t),(f),(n)))

#define memcpy(t, f, n) __builtin_memcpy(t, f, n)



#define __HAVE_ARCH_MEMSET



static inline void *__constant_c_and_count_memset(void *s, char c, __kernel_size_t count)

{

	extern void bzero_1page(void *);

	extern __kernel_size_t __bzero(void *, __kernel_size_t);



	if(!c) {

		if(count == PAGE_SIZE)

			bzero_1page(s);

		else

			__bzero(s, count);

	} else {

		__memset(s, c, count);

	}

	return s;

}



static inline void *__constant_c_memset(void *s, char c, __kernel_size_t count)

{

	extern __kernel_size_t __bzero(void *, __kernel_size_t);



	if(!c)

		__bzero(s, count);

	else

		__memset(s, c, count);

	return s;

}



static inline void *__nonconstant_memset(void *s, char c, __kernel_size_t count)

{

	__memset(s, c, count);

	return s;

}



#undef memset

#define memset(s, c, count) \

(__builtin_constant_p(c) ? (__builtin_constant_p(count) ? \

                            __constant_c_and_count_memset((s), (c), (count)) : \

                            __constant_c_memset((s), (c), (count))) \

                          : __nonconstant_memset((s), (c), (count)))

#define memset(s, c, count) __builtin_memset(s, c, count)



#define __HAVE_ARCH_MEMSCAN

arch/sparc/include/asm/string_64.h

+2 −23
Original line number Diff line number Diff line
@@ -15,8 +15,6 @@ 


#include <asm/asi.h>



extern void *__memset(void *,int,__kernel_size_t);



#ifndef EXPORT_SYMTAB_STROPS



/* First the mem*() things. */
@@ -24,29 +22,10 @@ extern void *__memset(void *,int,__kernel_size_t); 
extern void *memmove(void *, const void *, __kernel_size_t);



#define __HAVE_ARCH_MEMCPY

extern void *memcpy(void *, const void *, __kernel_size_t);

#define memcpy(t, f, n) __builtin_memcpy(t, f, n)



#define __HAVE_ARCH_MEMSET

extern void *__builtin_memset(void *,int,__kernel_size_t);



static inline void *__constant_memset(void *s, int c, __kernel_size_t count)

{

	extern __kernel_size_t __bzero(void *, __kernel_size_t);



	if (!c) {

		__bzero(s, count);

		return s;

	} else

		return __memset(s, c, count);

}



#undef memset

#define memset(s, c, count) \

((__builtin_constant_p(count) && (count) <= 32) ? \

 __builtin_memset((s), (c), (count)) : \

 (__builtin_constant_p(c) ? \

  __constant_memset((s), (c), (count)) : \

  __memset((s), (c), (count))))

#define memset(s, c, count) __builtin_memset(s, c, count)



#define __HAVE_ARCH_MEMSCAN

arch/sparc/lib/bzero.S

+0 −5
Original line number Diff line number Diff line
@@ -6,10 +6,6 @@ 


	.text



	.globl	__memset

	.type	__memset, #function

__memset:		/* %o0=buf, %o1=pat, %o2=len */



	.globl	memset

	.type	memset, #function

memset:			/* %o0=buf, %o1=pat, %o2=len */
@@ -83,7 +79,6 @@ __bzero_done: 
	retl

	 mov		%o3, %o0

	.size		__bzero, .-__bzero

	.size		__memset, .-__memset

	.size		memset, .-memset



#define EX_ST(x,y)		\

arch/sparc/lib/checksum_32.S

+1 −1
Original line number Diff line number Diff line
@@ -560,7 +560,7 @@ __csum_partial_copy_end: 
	 mov	%i0, %o1

	mov	%i1, %o0

5:

	call	__memcpy

	call	memcpy

	 mov	%i2, %o2

	tst	%o0

	bne,a	2f

arch/sparc/lib/ksyms.c

+0 −2
Original line number Diff line number Diff line
@@ -30,7 +30,6 @@ EXPORT_SYMBOL(__memscan_generic); 
EXPORT_SYMBOL(memcmp);

EXPORT_SYMBOL(memcpy);

EXPORT_SYMBOL(memset);

EXPORT_SYMBOL(__memset);

EXPORT_SYMBOL(memmove);

EXPORT_SYMBOL(__bzero);
@@ -81,7 +80,6 @@ EXPORT_SYMBOL(__csum_partial_copy_sparc_generic); 


/* Special internal versions of library functions. */

EXPORT_SYMBOL(__copy_1page);

EXPORT_SYMBOL(__memcpy);

EXPORT_SYMBOL(__memmove);

EXPORT_SYMBOL(bzero_1page);