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 <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 #ifdef CONFIG_ARCH_HAS_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