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/pgalloc.h>
29 #include <asm/ftrace.h>
30 #ifdef CONFIG_BLK_DEV_FD
31 #include <asm/floppy.h>
32 #endif
33 #ifdef CONFIG_NET
34 #include <net/checksum.h>
35 #endif /* CONFIG_NET */
36 
37 
38 /*
39  * String functions
40  */
41 EXPORT_SYMBOL(memset);
42 EXPORT_SYMBOL(memcpy);
43 EXPORT_SYMBOL(memmove);
44 EXPORT_SYMBOL(__memset);
45 EXPORT_SYMBOL(__memcpy);
46 EXPORT_SYMBOL(__memmove);
47 #ifndef CONFIG_GENERIC_STRNCPY_FROM_USER
48 EXPORT_SYMBOL(__strncpy_user);
49 #endif
50 EXPORT_SYMBOL(clear_page);
51 EXPORT_SYMBOL(copy_page);
52 
53 EXPORT_SYMBOL(empty_zero_page);
54 
55 /*
56  * gcc internal math functions
57  */
58 extern long long __ashrdi3(long long, int);
59 extern long long __ashldi3(long long, int);
60 extern long long __lshrdi3(long long, int);
61 extern int __divsi3(int, int);
62 extern int __modsi3(int, int);
63 extern long long __muldi3(long long, long long);
64 extern int __mulsi3(int, int);
65 extern unsigned int __udivsi3(unsigned int, unsigned int);
66 extern unsigned int __umodsi3(unsigned int, unsigned int);
67 extern unsigned long long __umoddi3(unsigned long long, unsigned long long);
68 extern unsigned long long __udivdi3(unsigned long long, unsigned long long);
69 extern int __ucmpdi2(int, int);
70 
71 EXPORT_SYMBOL(__ashldi3);
72 EXPORT_SYMBOL(__ashrdi3);
73 EXPORT_SYMBOL(__lshrdi3);
74 EXPORT_SYMBOL(__divsi3);
75 EXPORT_SYMBOL(__modsi3);
76 EXPORT_SYMBOL(__muldi3);
77 EXPORT_SYMBOL(__mulsi3);
78 EXPORT_SYMBOL(__udivsi3);
79 EXPORT_SYMBOL(__umodsi3);
80 EXPORT_SYMBOL(__udivdi3);
81 EXPORT_SYMBOL(__umoddi3);
82 EXPORT_SYMBOL(__ucmpdi2);
83 
84 void __xtensa_libgcc_window_spill(void)
85 {
86 	BUG();
87 }
88 EXPORT_SYMBOL(__xtensa_libgcc_window_spill);
89 
90 unsigned long __sync_fetch_and_and_4(unsigned long *p, unsigned long v)
91 {
92 	BUG();
93 }
94 EXPORT_SYMBOL(__sync_fetch_and_and_4);
95 
96 unsigned long __sync_fetch_and_or_4(unsigned long *p, unsigned long v)
97 {
98 	BUG();
99 }
100 EXPORT_SYMBOL(__sync_fetch_and_or_4);
101 
102 /*
103  * Networking support
104  */
105 EXPORT_SYMBOL(csum_partial);
106 EXPORT_SYMBOL(csum_partial_copy_generic);
107 
108 /*
109  * Architecture-specific symbols
110  */
111 EXPORT_SYMBOL(__xtensa_copy_user);
112 EXPORT_SYMBOL(__invalidate_icache_range);
113 
114 /*
115  * Kernel hacking ...
116  */
117 
118 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
119 // FIXME EXPORT_SYMBOL(screen_info);
120 #endif
121 
122 extern long common_exception_return;
123 EXPORT_SYMBOL(common_exception_return);
124 
125 #ifdef CONFIG_FUNCTION_TRACER
126 EXPORT_SYMBOL(_mcount);
127 #endif
128 
129 EXPORT_SYMBOL(__invalidate_dcache_range);
130 #if XCHAL_DCACHE_IS_WRITEBACK
131 EXPORT_SYMBOL(__flush_dcache_range);
132 #endif
133