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
__xtensa_libgcc_window_spill(void)83 void __xtensa_libgcc_window_spill(void)
84 {
85 BUG();
86 }
87 EXPORT_SYMBOL(__xtensa_libgcc_window_spill);
88
__sync_fetch_and_and_4(volatile void * p,unsigned int v)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
__sync_fetch_and_or_4(volatile void * p,unsigned int v)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