arch/xtensa/kernel/xtensa_ksyms.c

   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 <asm/uaccess.h>
  23 #include <asm/checksum.h>
  24 #include <asm/dma.h>
  25 #include <asm/io.h>
  26 #include <asm/page.h>
  27 #include <asm/pgalloc.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(__strncpy_user);
  44 EXPORT_SYMBOL(clear_page);
  45 EXPORT_SYMBOL(copy_page);
  46
  47 EXPORT_SYMBOL(empty_zero_page);
  48
  49 /*
  50  * gcc internal math functions
  51  */
  52 extern long long __ashrdi3(long long, int);
  53 extern long long __ashldi3(long long, int);
  54 extern long long __lshrdi3(long long, int);
  55 extern int __divsi3(int, int);
  56 extern int __modsi3(int, int);
  57 extern long long __muldi3(long long, long long);
  58 extern int __mulsi3(int, int);
  59 extern unsigned int __udivsi3(unsigned int, unsigned int);
  60 extern unsigned int __umodsi3(unsigned int, unsigned int);
  61 extern unsigned long long __umoddi3(unsigned long long, unsigned long long);
  62 extern unsigned long long __udivdi3(unsigned long long, unsigned long long);
  63 extern int __ucmpdi2(int, int);
  64
  65 EXPORT_SYMBOL(__ashldi3);
  66 EXPORT_SYMBOL(__ashrdi3);
  67 EXPORT_SYMBOL(__lshrdi3);
  68 EXPORT_SYMBOL(__divsi3);
  69 EXPORT_SYMBOL(__modsi3);
  70 EXPORT_SYMBOL(__muldi3);
  71 EXPORT_SYMBOL(__mulsi3);
  72 EXPORT_SYMBOL(__udivsi3);
  73 EXPORT_SYMBOL(__umodsi3);
  74 EXPORT_SYMBOL(__udivdi3);
  75 EXPORT_SYMBOL(__umoddi3);
  76 EXPORT_SYMBOL(__ucmpdi2);
  77
  78 void __xtensa_libgcc_window_spill(void)
  79 {
  80         BUG();
  81 }
  82 EXPORT_SYMBOL(__xtensa_libgcc_window_spill);
  83
  84 unsigned long __sync_fetch_and_and_4(unsigned long *p, unsigned long v)
  85 {
  86         BUG();
  87 }
  88 EXPORT_SYMBOL(__sync_fetch_and_and_4);
  89
  90 unsigned long __sync_fetch_and_or_4(unsigned long *p, unsigned long v)
  91 {
  92         BUG();
  93 }
  94 EXPORT_SYMBOL(__sync_fetch_and_or_4);
  95
  96 #ifdef CONFIG_NET
  97 /*
  98  * Networking support
  99  */
 100 EXPORT_SYMBOL(csum_partial);
 101 EXPORT_SYMBOL(csum_partial_copy_generic);
 102 #endif /* CONFIG_NET */
 103
 104 /*
 105  * Architecture-specific symbols
 106  */
 107 EXPORT_SYMBOL(__xtensa_copy_user);
 108
 109 /*
 110  * Kernel hacking ...
 111  */
 112
 113 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
 114 // FIXME EXPORT_SYMBOL(screen_info);
 115 #endif
 116
 117 EXPORT_SYMBOL(outsb);
 118 EXPORT_SYMBOL(outsw);
 119 EXPORT_SYMBOL(outsl);
 120 EXPORT_SYMBOL(insb);
 121 EXPORT_SYMBOL(insw);
 122 EXPORT_SYMBOL(insl);
 123
 124 extern long common_exception_return;
 125 extern long _spill_registers;
 126 EXPORT_SYMBOL(common_exception_return);
 127 EXPORT_SYMBOL(_spill_registers);
 128
 129 #ifdef CONFIG_FUNCTION_TRACER
 130 EXPORT_SYMBOL(_mcount);
 131 #endif