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Linux/arch/xtensa/kernel/xtensa_ksyms.c

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  1 /*
  2  * arch/xtensa/kernel/xtensa_ksyms.c
  3  *
  4  * Export Xtensa-specific functions for loadable modules.
  5  *
  6  * This file is subject to the terms and conditions of the GNU General Public
  7  * License.  See the file "COPYING" in the main directory of this archive
  8  * for more details.
  9  *
 10  * Copyright (C) 2001 - 2005  Tensilica Inc.
 11  *
 12  * Joe Taylor <joe@tensilica.com>
 13  */
 14 
 15 #include <linux/module.h>
 16 #include <linux/string.h>
 17 #include <linux/mm.h>
 18 #include <linux/interrupt.h>
 19 #include <asm/irq.h>
 20 #include <linux/in6.h>
 21 
 22 #include <linux/uaccess.h>
 23 #include <asm/cacheflush.h>
 24 #include <asm/checksum.h>
 25 #include <asm/dma.h>
 26 #include <asm/io.h>
 27 #include <asm/page.h>
 28 #include <asm/ftrace.h>
 29 #ifdef CONFIG_BLK_DEV_FD
 30 #include <asm/floppy.h>
 31 #endif
 32 #ifdef CONFIG_NET
 33 #include <net/checksum.h>
 34 #endif /* CONFIG_NET */
 35 
 36 
 37 /*
 38  * String functions
 39  */
 40 EXPORT_SYMBOL(memset);
 41 EXPORT_SYMBOL(memcpy);
 42 EXPORT_SYMBOL(memmove);
 43 EXPORT_SYMBOL(__memset);
 44 EXPORT_SYMBOL(__memcpy);
 45 EXPORT_SYMBOL(__memmove);
 46 #ifndef CONFIG_GENERIC_STRNCPY_FROM_USER
 47 EXPORT_SYMBOL(__strncpy_user);
 48 #endif
 49 EXPORT_SYMBOL(clear_page);
 50 EXPORT_SYMBOL(copy_page);
 51 
 52 EXPORT_SYMBOL(empty_zero_page);
 53 
 54 /*
 55  * gcc internal math functions
 56  */
 57 extern long long __ashrdi3(long long, int);
 58 extern long long __ashldi3(long long, int);
 59 extern long long __lshrdi3(long long, int);
 60 extern int __divsi3(int, int);
 61 extern int __modsi3(int, int);
 62 extern long long __muldi3(long long, long long);
 63 extern int __mulsi3(int, int);
 64 extern unsigned int __udivsi3(unsigned int, unsigned int);
 65 extern unsigned int __umodsi3(unsigned int, unsigned int);
 66 extern unsigned long long __umoddi3(unsigned long long, unsigned long long);
 67 extern unsigned long long __udivdi3(unsigned long long, unsigned long long);
 68 extern int __ucmpdi2(int, int);
 69 
 70 EXPORT_SYMBOL(__ashldi3);
 71 EXPORT_SYMBOL(__ashrdi3);
 72 EXPORT_SYMBOL(__lshrdi3);
 73 EXPORT_SYMBOL(__divsi3);
 74 EXPORT_SYMBOL(__modsi3);
 75 EXPORT_SYMBOL(__muldi3);
 76 EXPORT_SYMBOL(__mulsi3);
 77 EXPORT_SYMBOL(__udivsi3);
 78 EXPORT_SYMBOL(__umodsi3);
 79 EXPORT_SYMBOL(__udivdi3);
 80 EXPORT_SYMBOL(__umoddi3);
 81 EXPORT_SYMBOL(__ucmpdi2);
 82 
 83 void __xtensa_libgcc_window_spill(void)
 84 {
 85         BUG();
 86 }
 87 EXPORT_SYMBOL(__xtensa_libgcc_window_spill);
 88 
 89 unsigned int __sync_fetch_and_and_4(volatile void *p, unsigned int v)
 90 {
 91         BUG();
 92 }
 93 EXPORT_SYMBOL(__sync_fetch_and_and_4);
 94 
 95 unsigned int __sync_fetch_and_or_4(volatile void *p, unsigned int v)
 96 {
 97         BUG();
 98 }
 99 EXPORT_SYMBOL(__sync_fetch_and_or_4);
100 
101 /*
102  * Networking support
103  */
104 EXPORT_SYMBOL(csum_partial);
105 EXPORT_SYMBOL(csum_partial_copy_generic);
106 
107 /*
108  * Architecture-specific symbols
109  */
110 EXPORT_SYMBOL(__xtensa_copy_user);
111 EXPORT_SYMBOL(__invalidate_icache_range);
112 
113 /*
114  * Kernel hacking ...
115  */
116 
117 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
118 // FIXME EXPORT_SYMBOL(screen_info);
119 #endif
120 
121 extern long common_exception_return;
122 EXPORT_SYMBOL(common_exception_return);
123 
124 #ifdef CONFIG_FUNCTION_TRACER
125 EXPORT_SYMBOL(_mcount);
126 #endif
127 
128 EXPORT_SYMBOL(__invalidate_dcache_range);
129 #if XCHAL_DCACHE_IS_WRITEBACK
130 EXPORT_SYMBOL(__flush_dcache_range);
131 #endif
132 

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