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authorGreg Ungerer <gerg@snapgear.com>2010-09-07 00:52:52 -0400
committerGeert Uytterhoeven <geert@linux-m68k.org>2010-10-22 03:43:23 -0400
commitea61bc461d09e8d331a307916530aaae808c72a2 (patch)
tree813b2ef469f9712d73cf165a2904b23f527256b0
parent5bc5a70b62e5b672e40dd031da3e0444f62dbd3a (diff)
m68k/m68knommu: merge MMU and non-MMU string.h
The MMU and non-MMU string.h varients (string_no.h and string_mm.h) and almost the same. Switch to using the string_mm.h one, merging in the necessary ColdFire support. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat
-rw-r--r--arch/m68k/include/asm/string.h134
-rw-r--r--arch/m68k/include/asm/string_mm.h131
-rw-r--r--arch/m68k/include/asm/string_no.h126
3 files changed, 131 insertions, 260 deletions
diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h
index 2c356f90f171..2936dda938d7 100644
--- a/arch/m68k/include/asm/string.h
+++ b/arch/m68k/include/asm/string.h
@@ -1,5 +1,133 @@
1#ifdef __uClinux__ 1#ifndef _M68K_STRING_H_
2#include "string_no.h" 2#define _M68K_STRING_H_
3
4#include <linux/types.h>
5#include <linux/compiler.h>
6
7static inline size_t __kernel_strlen(const char *s)
8{
9 const char *sc;
10
11 for (sc = s; *sc++; )
12 ;
13 return sc - s - 1;
14}
15
16static inline char *__kernel_strcpy(char *dest, const char *src)
17{
18 char *xdest = dest;
19
20 asm volatile ("\n"
21 "1: move.b (%1)+,(%0)+\n"
22 " jne 1b"
23 : "+a" (dest), "+a" (src)
24 : : "memory");
25 return xdest;
26}
27
28#ifndef __IN_STRING_C
29
30#define __HAVE_ARCH_STRLEN
31#define strlen(s) (__builtin_constant_p(s) ? \
32 __builtin_strlen(s) : \
33 __kernel_strlen(s))
34
35#define __HAVE_ARCH_STRNLEN
36static inline size_t strnlen(const char *s, size_t count)
37{
38 const char *sc = s;
39
40 asm volatile ("\n"
41 "1: subq.l #1,%1\n"
42 " jcs 2f\n"
43 " tst.b (%0)+\n"
44 " jne 1b\n"
45 " subq.l #1,%0\n"
46 "2:"
47 : "+a" (sc), "+d" (count));
48 return sc - s;
49}
50
51#define __HAVE_ARCH_STRCPY
52#if __GNUC__ >= 4
53#define strcpy(d, s) (__builtin_constant_p(s) && \
54 __builtin_strlen(s) <= 32 ? \
55 __builtin_strcpy(d, s) : \
56 __kernel_strcpy(d, s))
3#else 57#else
4#include "string_mm.h" 58#define strcpy(d, s) __kernel_strcpy(d, s)
5#endif 59#endif
60
61#define __HAVE_ARCH_STRNCPY
62static inline char *strncpy(char *dest, const char *src, size_t n)
63{
64 char *xdest = dest;
65
66 asm volatile ("\n"
67 " jra 2f\n"
68 "1: move.b (%1),(%0)+\n"
69 " jeq 2f\n"
70 " addq.l #1,%1\n"
71 "2: subq.l #1,%2\n"
72 " jcc 1b\n"
73 : "+a" (dest), "+a" (src), "+d" (n)
74 : : "memory");
75 return xdest;
76}
77
78#define __HAVE_ARCH_STRCAT
79#define strcat(d, s) ({ \
80 char *__d = (d); \
81 strcpy(__d + strlen(__d), (s)); \
82})
83
84#define __HAVE_ARCH_STRCHR
85static inline char *strchr(const char *s, int c)
86{
87 char sc, ch = c;
88
89 for (; (sc = *s++) != ch; ) {
90 if (!sc)
91 return NULL;
92 }
93 return (char *)s - 1;
94}
95
96#ifndef CONFIG_COLDFIRE
97#define __HAVE_ARCH_STRCMP
98static inline int strcmp(const char *cs, const char *ct)
99{
100 char res;
101
102 asm ("\n"
103 "1: move.b (%0)+,%2\n" /* get *cs */
104 " cmp.b (%1)+,%2\n" /* compare a byte */
105 " jne 2f\n" /* not equal, break out */
106 " tst.b %2\n" /* at end of cs? */
107 " jne 1b\n" /* no, keep going */
108 " jra 3f\n" /* strings are equal */
109 "2: sub.b -(%1),%2\n" /* *cs - *ct */
110 "3:"
111 : "+a" (cs), "+a" (ct), "=d" (res));
112 return res;
113}
114
115#define __HAVE_ARCH_MEMMOVE
116extern void *memmove(void *, const void *, __kernel_size_t);
117
118#define __HAVE_ARCH_MEMCMP
119extern int memcmp(const void *, const void *, __kernel_size_t);
120#define memcmp(d, s, n) __builtin_memcmp(d, s, n)
121#endif /* CONFIG_COLDFIRE */
122
123#define __HAVE_ARCH_MEMSET
124extern void *memset(void *, int, __kernel_size_t);
125#define memset(d, c, n) __builtin_memset(d, c, n)
126
127#define __HAVE_ARCH_MEMCPY
128extern void *memcpy(void *, const void *, __kernel_size_t);
129#define memcpy(d, s, n) __builtin_memcpy(d, s, n)
130
131#endif
132
133#endif /* _M68K_STRING_H_ */
diff --git a/arch/m68k/include/asm/string_mm.h b/arch/m68k/include/asm/string_mm.h
deleted file mode 100644
index 2eb7df1e0f5d..000000000000
--- a/arch/m68k/include/asm/string_mm.h
+++ /dev/null
@@ -1,131 +0,0 @@
1#ifndef _M68K_STRING_H_
2#define _M68K_STRING_H_
3
4#include <linux/types.h>
5#include <linux/compiler.h>
6
7static inline size_t __kernel_strlen(const char *s)
8{
9 const char *sc;
10
11 for (sc = s; *sc++; )
12 ;
13 return sc - s - 1;
14}
15
16static inline char *__kernel_strcpy(char *dest, const char *src)
17{
18 char *xdest = dest;
19
20 asm volatile ("\n"
21 "1: move.b (%1)+,(%0)+\n"
22 " jne 1b"
23 : "+a" (dest), "+a" (src)
24 : : "memory");
25 return xdest;
26}
27
28#ifndef __IN_STRING_C
29
30#define __HAVE_ARCH_STRLEN
31#define strlen(s) (__builtin_constant_p(s) ? \
32 __builtin_strlen(s) : \
33 __kernel_strlen(s))
34
35#define __HAVE_ARCH_STRNLEN
36static inline size_t strnlen(const char *s, size_t count)
37{
38 const char *sc = s;
39
40 asm volatile ("\n"
41 "1: subq.l #1,%1\n"
42 " jcs 2f\n"
43 " tst.b (%0)+\n"
44 " jne 1b\n"
45 " subq.l #1,%0\n"
46 "2:"
47 : "+a" (sc), "+d" (count));
48 return sc - s;
49}
50
51#define __HAVE_ARCH_STRCPY
52#if __GNUC__ >= 4
53#define strcpy(d, s) (__builtin_constant_p(s) && \
54 __builtin_strlen(s) <= 32 ? \
55 __builtin_strcpy(d, s) : \
56 __kernel_strcpy(d, s))
57#else
58#define strcpy(d, s) __kernel_strcpy(d, s)
59#endif
60
61#define __HAVE_ARCH_STRNCPY
62static inline char *strncpy(char *dest, const char *src, size_t n)
63{
64 char *xdest = dest;
65
66 asm volatile ("\n"
67 " jra 2f\n"
68 "1: move.b (%1),(%0)+\n"
69 " jeq 2f\n"
70 " addq.l #1,%1\n"
71 "2: subq.l #1,%2\n"
72 " jcc 1b\n"
73 : "+a" (dest), "+a" (src), "+d" (n)
74 : : "memory");
75 return xdest;
76}
77
78#define __HAVE_ARCH_STRCAT
79#define strcat(d, s) ({ \
80 char *__d = (d); \
81 strcpy(__d + strlen(__d), (s)); \
82})
83
84#define __HAVE_ARCH_STRCHR
85static inline char *strchr(const char *s, int c)
86{
87 char sc, ch = c;
88
89 for (; (sc = *s++) != ch; ) {
90 if (!sc)
91 return NULL;
92 }
93 return (char *)s - 1;
94}
95
96#define __HAVE_ARCH_STRCMP
97static inline int strcmp(const char *cs, const char *ct)
98{
99 char res;
100
101 asm ("\n"
102 "1: move.b (%0)+,%2\n" /* get *cs */
103 " cmp.b (%1)+,%2\n" /* compare a byte */
104 " jne 2f\n" /* not equal, break out */
105 " tst.b %2\n" /* at end of cs? */
106 " jne 1b\n" /* no, keep going */
107 " jra 3f\n" /* strings are equal */
108 "2: sub.b -(%1),%2\n" /* *cs - *ct */
109 "3:"
110 : "+a" (cs), "+a" (ct), "=d" (res));
111 return res;
112}
113
114#define __HAVE_ARCH_MEMSET
115extern void *memset(void *, int, __kernel_size_t);
116#define memset(d, c, n) __builtin_memset(d, c, n)
117
118#define __HAVE_ARCH_MEMCPY
119extern void *memcpy(void *, const void *, __kernel_size_t);
120#define memcpy(d, s, n) __builtin_memcpy(d, s, n)
121
122#define __HAVE_ARCH_MEMMOVE
123extern void *memmove(void *, const void *, __kernel_size_t);
124
125#define __HAVE_ARCH_MEMCMP
126extern int memcmp(const void *, const void *, __kernel_size_t);
127#define memcmp(d, s, n) __builtin_memcmp(d, s, n)
128
129#endif
130
131#endif /* _M68K_STRING_H_ */
diff --git a/arch/m68k/include/asm/string_no.h b/arch/m68k/include/asm/string_no.h
deleted file mode 100644
index af09e17000fc..000000000000
--- a/arch/m68k/include/asm/string_no.h
+++ /dev/null
@@ -1,126 +0,0 @@
1#ifndef _M68KNOMMU_STRING_H_
2#define _M68KNOMMU_STRING_H_
3
4#ifdef __KERNEL__ /* only set these up for kernel code */
5
6#include <asm/setup.h>
7#include <asm/page.h>
8
9#define __HAVE_ARCH_STRCPY
10static inline char * strcpy(char * dest,const char *src)
11{
12 char *xdest = dest;
13
14 __asm__ __volatile__
15 ("1:\tmoveb %1@+,%0@+\n\t"
16 "jne 1b"
17 : "=a" (dest), "=a" (src)
18 : "0" (dest), "1" (src) : "memory");
19 return xdest;
20}
21
22#define __HAVE_ARCH_STRNCPY
23static inline char * strncpy(char *dest, const char *src, size_t n)
24{
25 char *xdest = dest;
26
27 if (n == 0)
28 return xdest;
29
30 __asm__ __volatile__
31 ("1:\tmoveb %1@+,%0@+\n\t"
32 "jeq 2f\n\t"
33 "subql #1,%2\n\t"
34 "jne 1b\n\t"
35 "2:"
36 : "=a" (dest), "=a" (src), "=d" (n)
37 : "0" (dest), "1" (src), "2" (n)
38 : "memory");
39 return xdest;
40}
41
42
43#ifndef CONFIG_COLDFIRE
44
45#define __HAVE_ARCH_STRCMP
46static inline int strcmp(const char * cs,const char * ct)
47{
48 char __res;
49
50 __asm__
51 ("1:\tmoveb %0@+,%2\n\t" /* get *cs */
52 "cmpb %1@+,%2\n\t" /* compare a byte */
53 "jne 2f\n\t" /* not equal, break out */
54 "tstb %2\n\t" /* at end of cs? */
55 "jne 1b\n\t" /* no, keep going */
56 "jra 3f\n\t" /* strings are equal */
57 "2:\tsubb %1@-,%2\n\t" /* *cs - *ct */
58 "3:"
59 : "=a" (cs), "=a" (ct), "=d" (__res)
60 : "0" (cs), "1" (ct));
61
62 return __res;
63}
64
65#define __HAVE_ARCH_STRNCMP
66static inline int strncmp(const char * cs,const char * ct,size_t count)
67{
68 char __res;
69
70 if (!count)
71 return 0;
72 __asm__
73 ("1:\tmovb %0@+,%3\n\t" /* get *cs */
74 "cmpb %1@+,%3\n\t" /* compare a byte */
75 "jne 3f\n\t" /* not equal, break out */
76 "tstb %3\n\t" /* at end of cs? */
77 "jeq 4f\n\t" /* yes, all done */
78 "subql #1,%2\n\t" /* no, adjust count */
79 "jne 1b\n\t" /* more to do, keep going */
80 "2:\tmoveq #0,%3\n\t" /* strings are equal */
81 "jra 4f\n\t"
82 "3:\tsubb %1@-,%3\n\t" /* *cs - *ct */
83 "4:"
84 : "=a" (cs), "=a" (ct), "=d" (count), "=d" (__res)
85 : "0" (cs), "1" (ct), "2" (count));
86 return __res;
87}
88
89#endif /* CONFIG_COLDFIRE */
90
91#define __HAVE_ARCH_MEMSET
92extern void * memset(void * s, int c, size_t count);
93
94#define __HAVE_ARCH_MEMCPY
95extern void * memcpy(void *d, const void *s, size_t count);
96
97#else /* KERNEL */
98
99/*
100 * let user libraries deal with these,
101 * IMHO the kernel has no place defining these functions for user apps
102 */
103
104#define __HAVE_ARCH_STRCPY 1
105#define __HAVE_ARCH_STRNCPY 1
106#define __HAVE_ARCH_STRCAT 1
107#define __HAVE_ARCH_STRNCAT 1
108#define __HAVE_ARCH_STRCMP 1
109#define __HAVE_ARCH_STRNCMP 1
110#define __HAVE_ARCH_STRNICMP 1
111#define __HAVE_ARCH_STRCHR 1
112#define __HAVE_ARCH_STRRCHR 1
113#define __HAVE_ARCH_STRSTR 1
114#define __HAVE_ARCH_STRLEN 1
115#define __HAVE_ARCH_STRNLEN 1
116#define __HAVE_ARCH_MEMSET 1
117#define __HAVE_ARCH_MEMCPY 1
118#define __HAVE_ARCH_MEMMOVE 1
119#define __HAVE_ARCH_MEMSCAN 1
120#define __HAVE_ARCH_MEMCMP 1
121#define __HAVE_ARCH_MEMCHR 1
122#define __HAVE_ARCH_STRTOK 1
123
124#endif /* KERNEL */
125
126#endif /* _M68K_STRING_H_ */
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