[PATCH] Export all functions in lib/string.c

Quite a few functions in lib/string.c are not exported.  I ran into this
trying to use strnchr() in a module.

This patch
 - exports every function defined in lib/string.c
 - adds some missing __HAVE_ARCH_xxx defines for i386
 - gets rid of the exports of functions from lib/string.c in arch/s390
   (BTW, why is s390 exporting things NOVERS?)
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/s390/lib/string.c

@@ -394,12 +394,3 @@ void *memset(void *s, int c, size_t n)
 	return s;
 }
 EXPORT_SYMBOL_NOVERS(memset);
-
-/*
- * missing exports for string functions defined in lib/string.c
- */
-EXPORT_SYMBOL_NOVERS(memmove);
-EXPORT_SYMBOL_NOVERS(strchr);
-EXPORT_SYMBOL_NOVERS(strnchr);
-EXPORT_SYMBOL_NOVERS(strncmp);
-EXPORT_SYMBOL_NOVERS(strpbrk);

include/asm-i386/string.h

@@ -27,6 +27,7 @@
  */
 #if !defined(IN_STRING_C)
 
+#define __HAVE_ARCH_STRCPY
 static inline char * strcpy(char * dest,const char *src)
 {
 int d0, d1, d2;
@@ -40,6 +41,7 @@ __asm__ __volatile__(
 return dest;
 }
 
+#define __HAVE_ARCH_STRNCPY
 static inline char * strncpy(char * dest,const char *src,size_t count)
 {
 int d0, d1, d2, d3;
@@ -58,6 +60,7 @@ __asm__ __volatile__(
 return dest;
 }
 
+#define __HAVE_ARCH_STRCAT
 static inline char * strcat(char * dest,const char * src)
 {
 int d0, d1, d2, d3;
@@ -74,6 +77,7 @@ __asm__ __volatile__(
 return dest;
 }
 
+#define __HAVE_ARCH_STRNCAT
 static inline char * strncat(char * dest,const char * src,size_t count)
 {
 int d0, d1, d2, d3;
@@ -96,6 +100,7 @@ __asm__ __volatile__(
 return dest;
 }
 
+#define __HAVE_ARCH_STRCMP
 static inline int strcmp(const char * cs,const char * ct)
 {
 int d0, d1;
@@ -116,6 +121,7 @@ __asm__ __volatile__(
 return __res;
 }
 
+#define __HAVE_ARCH_STRNCMP
 static inline int strncmp(const char * cs,const char * ct,size_t count)
 {
 register int __res;
@@ -138,6 +144,7 @@ __asm__ __volatile__(
 return __res;
 }
 
+#define __HAVE_ARCH_STRCHR
 static inline char * strchr(const char * s, int c)
 {
 int d0;
@@ -156,6 +163,7 @@ __asm__ __volatile__(
 return __res;
 }
 
+#define __HAVE_ARCH_STRRCHR
 static inline char * strrchr(const char * s, int c)
 {
 int d0, d1;

lib/string.c

@@ -75,6 +75,7 @@ char * strcpy(char * dest,const char *src)
 		/* nothing */;
 	return tmp;
 }
+EXPORT_SYMBOL(strcpy);
 #endif
 
 #ifndef __HAVE_ARCH_STRNCPY
@@ -98,6 +99,7 @@ char * strncpy(char * dest,const char *src,size_t count)
 	}
 	return dest;
 }
+EXPORT_SYMBOL(strncpy);
 #endif
 
 #ifndef __HAVE_ARCH_STRLCPY
@@ -143,6 +145,7 @@ char * strcat(char * dest, const char * src)
 
 	return tmp;
 }
+EXPORT_SYMBOL(strcat);
 #endif
 
 #ifndef __HAVE_ARCH_STRNCAT
@@ -172,6 +175,7 @@ char * strncat(char *dest, const char *src, size_t count)
 
 	return tmp;
 }
+EXPORT_SYMBOL(strncat);
 #endif
 
 #ifndef __HAVE_ARCH_STRLCAT
@@ -218,6 +222,7 @@ int strcmp(const char * cs,const char * ct)
 
 	return __res;
 }
+EXPORT_SYMBOL(strcmp);
 #endif
 
 #ifndef __HAVE_ARCH_STRNCMP
@@ -239,6 +244,7 @@ int strncmp(const char * cs,const char * ct,size_t count)
 
 	return __res;
 }
+EXPORT_SYMBOL(strncmp);
 #endif
 
 #ifndef __HAVE_ARCH_STRCHR
@@ -254,6 +260,7 @@ char * strchr(const char * s, int c)
 			return NULL;
 	return (char *) s;
 }
+EXPORT_SYMBOL(strchr);
 #endif
 
 #ifndef __HAVE_ARCH_STRRCHR
@@ -271,6 +278,7 @@ char * strrchr(const char * s, int c)
        } while (--p >= s);
        return NULL;
 }
+EXPORT_SYMBOL(strrchr);
 #endif
 
 #ifndef __HAVE_ARCH_STRNCHR
@@ -287,6 +295,7 @@ char *strnchr(const char *s, size_t count, int c)
 			return (char *) s;
 	return NULL;
 }
+EXPORT_SYMBOL(strnchr);
 #endif
 
 #ifndef __HAVE_ARCH_STRLEN
@@ -302,6 +311,7 @@ size_t strlen(const char * s)
 		/* nothing */;
 	return sc - s;
 }
+EXPORT_SYMBOL(strlen);
 #endif
 
 #ifndef __HAVE_ARCH_STRNLEN
@@ -318,6 +328,7 @@ size_t strnlen(const char * s, size_t count)
 		/* nothing */;
 	return sc - s;
 }
+EXPORT_SYMBOL(strnlen);
 #endif
 
 #ifndef __HAVE_ARCH_STRSPN
@@ -371,6 +382,7 @@ size_t strcspn(const char *s, const char *reject)
 
 	return count;
 }	
+EXPORT_SYMBOL(strcspn);
 
 #ifndef __HAVE_ARCH_STRPBRK
 /**
@@ -390,6 +402,7 @@ char * strpbrk(const char * cs,const char * ct)
 	}
 	return NULL;
 }
+EXPORT_SYMBOL(strpbrk);
 #endif
 
 #ifndef __HAVE_ARCH_STRSEP
@@ -440,6 +453,7 @@ void * memset(void * s,int c,size_t count)
 
 	return s;
 }
+EXPORT_SYMBOL(memset);
 #endif
 
 #ifndef __HAVE_ARCH_BCOPY
@@ -463,6 +477,7 @@ void bcopy(const void * srcp, void * destp, size_t count)
 	while (count--)
 		*dest++ = *src++;
 }
+EXPORT_SYMBOL(bcopy);
 #endif
 
 #ifndef __HAVE_ARCH_MEMCPY
@@ -484,6 +499,7 @@ void * memcpy(void * dest,const void *src,size_t count)
 
 	return dest;
 }
+EXPORT_SYMBOL(memcpy);
 #endif
 
 #ifndef __HAVE_ARCH_MEMMOVE
@@ -514,6 +530,7 @@ void * memmove(void * dest,const void *src,size_t count)
 
 	return dest;
 }
+EXPORT_SYMBOL(memmove);
 #endif
 
 #ifndef __HAVE_ARCH_MEMCMP
@@ -533,6 +550,7 @@ int memcmp(const void * cs,const void * ct,size_t count)
 			break;
 	return res;
 }
+EXPORT_SYMBOL(memcmp);
 #endif
 
 #ifndef __HAVE_ARCH_MEMSCAN
@@ -557,6 +575,7 @@ void * memscan(void * addr, int c, size_t size)
 	}
   	return (void *) p;
 }
+EXPORT_SYMBOL(memscan);
 #endif
 
 #ifndef __HAVE_ARCH_STRSTR
@@ -581,6 +600,7 @@ char * strstr(const char * s1,const char * s2)
 	}
 	return NULL;
 }
+EXPORT_SYMBOL(strstr);
 #endif
 
 #ifndef __HAVE_ARCH_MEMCHR
@@ -603,5 +623,5 @@ void *memchr(const void *s, int c, size_t n)
 	}
 	return NULL;
 }
-
+EXPORT_SYMBOL(memchr);
 #endif