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1da177e4 LT |
1 | /* main.c: Rx RPC interface |
2 | * | |
3 | * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/sched.h> | |
15 | #include <rxrpc/rxrpc.h> | |
16 | #include <rxrpc/krxiod.h> | |
17 | #include <rxrpc/krxsecd.h> | |
18 | #include <rxrpc/krxtimod.h> | |
19 | #include <rxrpc/transport.h> | |
20 | #include <rxrpc/connection.h> | |
21 | #include <rxrpc/call.h> | |
22 | #include <rxrpc/message.h> | |
23 | #include "internal.h" | |
24 | ||
25 | MODULE_DESCRIPTION("Rx RPC implementation"); | |
26 | MODULE_AUTHOR("Red Hat, Inc."); | |
27 | MODULE_LICENSE("GPL"); | |
28 | ||
29 | __be32 rxrpc_epoch; | |
30 | ||
31 | /*****************************************************************************/ | |
32 | /* | |
33 | * initialise the Rx module | |
34 | */ | |
35 | static int __init rxrpc_initialise(void) | |
36 | { | |
37 | int ret; | |
38 | ||
39 | /* my epoch value */ | |
40 | rxrpc_epoch = htonl(xtime.tv_sec); | |
41 | ||
42 | /* register the /proc interface */ | |
43 | #ifdef CONFIG_PROC_FS | |
44 | ret = rxrpc_proc_init(); | |
45 | if (ret<0) | |
46 | return ret; | |
47 | #endif | |
48 | ||
49 | /* register the sysctl files */ | |
50 | #ifdef CONFIG_SYSCTL | |
51 | ret = rxrpc_sysctl_init(); | |
52 | if (ret<0) | |
53 | goto error_proc; | |
54 | #endif | |
55 | ||
56 | /* start the krxtimod daemon */ | |
57 | ret = rxrpc_krxtimod_start(); | |
58 | if (ret<0) | |
59 | goto error_sysctl; | |
60 | ||
61 | /* start the krxiod daemon */ | |
62 | ret = rxrpc_krxiod_init(); | |
63 | if (ret<0) | |
64 | goto error_krxtimod; | |
65 | ||
66 | /* start the krxsecd daemon */ | |
67 | ret = rxrpc_krxsecd_init(); | |
68 | if (ret<0) | |
69 | goto error_krxiod; | |
70 | ||
71 | kdebug("\n\n"); | |
72 | ||
73 | return 0; | |
74 | ||
75 | error_krxiod: | |
76 | rxrpc_krxiod_kill(); | |
77 | error_krxtimod: | |
78 | rxrpc_krxtimod_kill(); | |
79 | error_sysctl: | |
80 | #ifdef CONFIG_SYSCTL | |
81 | rxrpc_sysctl_cleanup(); | |
82 | #endif | |
83 | error_proc: | |
84 | #ifdef CONFIG_PROC_FS | |
85 | rxrpc_proc_cleanup(); | |
86 | #endif | |
87 | return ret; | |
88 | } /* end rxrpc_initialise() */ | |
89 | ||
90 | module_init(rxrpc_initialise); | |
91 | ||
92 | /*****************************************************************************/ | |
93 | /* | |
94 | * clean up the Rx module | |
95 | */ | |
96 | static void __exit rxrpc_cleanup(void) | |
97 | { | |
98 | kenter(""); | |
99 | ||
100 | __RXACCT(printk("Outstanding Messages : %d\n", | |
101 | atomic_read(&rxrpc_message_count))); | |
102 | __RXACCT(printk("Outstanding Calls : %d\n", | |
103 | atomic_read(&rxrpc_call_count))); | |
104 | __RXACCT(printk("Outstanding Connections: %d\n", | |
105 | atomic_read(&rxrpc_connection_count))); | |
106 | __RXACCT(printk("Outstanding Peers : %d\n", | |
107 | atomic_read(&rxrpc_peer_count))); | |
108 | __RXACCT(printk("Outstanding Transports : %d\n", | |
109 | atomic_read(&rxrpc_transport_count))); | |
110 | ||
111 | rxrpc_krxsecd_kill(); | |
112 | rxrpc_krxiod_kill(); | |
113 | rxrpc_krxtimod_kill(); | |
114 | #ifdef CONFIG_SYSCTL | |
115 | rxrpc_sysctl_cleanup(); | |
116 | #endif | |
117 | #ifdef CONFIG_PROC_FS | |
118 | rxrpc_proc_cleanup(); | |
119 | #endif | |
120 | ||
121 | __RXACCT(printk("Outstanding Messages : %d\n", | |
122 | atomic_read(&rxrpc_message_count))); | |
123 | __RXACCT(printk("Outstanding Calls : %d\n", | |
124 | atomic_read(&rxrpc_call_count))); | |
125 | __RXACCT(printk("Outstanding Connections: %d\n", | |
126 | atomic_read(&rxrpc_connection_count))); | |
127 | __RXACCT(printk("Outstanding Peers : %d\n", | |
128 | atomic_read(&rxrpc_peer_count))); | |
129 | __RXACCT(printk("Outstanding Transports : %d\n", | |
130 | atomic_read(&rxrpc_transport_count))); | |
131 | ||
132 | kleave(""); | |
133 | } /* end rxrpc_cleanup() */ | |
134 | ||
135 | module_exit(rxrpc_cleanup); | |
136 | ||
137 | /*****************************************************************************/ | |
138 | /* | |
139 | * clear the dead space between task_struct and kernel stack | |
140 | * - called by supplying -finstrument-functions to gcc | |
141 | */ | |
142 | #if 0 | |
143 | void __cyg_profile_func_enter (void *this_fn, void *call_site) | |
144 | __attribute__((no_instrument_function)); | |
145 | ||
146 | void __cyg_profile_func_enter (void *this_fn, void *call_site) | |
147 | { | |
148 | asm volatile(" movl %%esp,%%edi \n" | |
149 | " andl %0,%%edi \n" | |
150 | " addl %1,%%edi \n" | |
151 | " movl %%esp,%%ecx \n" | |
152 | " subl %%edi,%%ecx \n" | |
153 | " shrl $2,%%ecx \n" | |
154 | " movl $0xedededed,%%eax \n" | |
155 | " rep stosl \n" | |
156 | : | |
157 | : "i"(~(THREAD_SIZE-1)), "i"(sizeof(struct thread_info)) | |
158 | : "eax", "ecx", "edi", "memory", "cc" | |
159 | ); | |
160 | } | |
161 | ||
162 | void __cyg_profile_func_exit(void *this_fn, void *call_site) | |
163 | __attribute__((no_instrument_function)); | |
164 | ||
165 | void __cyg_profile_func_exit(void *this_fn, void *call_site) | |
166 | { | |
167 | asm volatile(" movl %%esp,%%edi \n" | |
168 | " andl %0,%%edi \n" | |
169 | " addl %1,%%edi \n" | |
170 | " movl %%esp,%%ecx \n" | |
171 | " subl %%edi,%%ecx \n" | |
172 | " shrl $2,%%ecx \n" | |
173 | " movl $0xdadadada,%%eax \n" | |
174 | " rep stosl \n" | |
175 | : | |
176 | : "i"(~(THREAD_SIZE-1)), "i"(sizeof(struct thread_info)) | |
177 | : "eax", "ecx", "edi", "memory", "cc" | |
178 | ); | |
179 | } | |
180 | #endif |