1 ////////////////////////////////////////////////////////////////////////////////////
6 // This file is C source for SWAP.
9 // AUTHOR: L.Komkov, S.Dianov, A.Gerenkov
10 // COMPANY NAME: Samsung Research Center in Moscow
11 // DEPT NAME: Advanced Software Group
12 // CREATED: 2008.02.15
14 // REVISION DATE: 2008.12.03
16 ////////////////////////////////////////////////////////////////////////////////////
18 #if !defined(__STORAGE_H__)
21 #include <linux/mount.h>
22 #include <linux/module.h>
23 #include <linux/list.h>
24 #include <linux/spinlock.h>
28 #include "probes_manager.h"
30 #include "event_tmpl.h"
31 #include "error_storage.h"
33 extern int EnableContinuousRetrieval(void);
34 extern int DisableContinuousRetrieval(void);
36 ///////////////////////////////////////////////////////////////////////////////////////////////////
38 extern unsigned int GetBufferSize(void);
39 extern int SetBufferSize(unsigned int nSize);
40 extern int ResetBuffer(void);
42 extern int SetPid(unsigned int pid);
44 //extern spinlock_t buffer_spinlock;
46 ///////////////////////////////////////////////////////////////////////////////////////////////////
49 Functions "storage_init()" and "storage_down()" are for initialization and
50 shutdown respectively.
52 extern int storage_init (void);
53 extern void storage_down (void);
56 Function "pack_event_info()" saves information about event into buffer. It
57 is used in 'probes' to pack and save event data.
59 extern void pack_task_event_info (struct task_struct *task, probe_id_t probe_id,
60 record_type_t record_type, const char *fmt, ...);
61 #define pack_event_info(probe_id, record_type, fmt, ...) \
62 pack_task_event_info(current, probe_id, record_type, fmt, __VA_ARGS__)
64 /* Set most links from us_proc_info to data in the bundle */
65 int link_bundle(void);
66 /* Undo the actions of link_bundle() */
67 void unlink_bundle(void);
69 void dbi_find_and_set_handler_for_probe(kernel_probe_t *p);
72 Copies event from user space to buffer and updates its pid/tid/cpu/time.
74 extern int put_us_event (char *data, unsigned long len);
79 extern int set_event_mask (int new_mask);
84 extern int get_event_mask (int *mask);
87 Sets predefined user space probes info.
89 extern int set_predef_uprobes (ioctl_predef_uprobes_info_t *data);
91 Gets predefined user space probes info length.
93 extern int get_predef_uprobes_size(int *size);
95 Gets predefined user space probes info.
97 extern int get_predef_uprobes(ioctl_predef_uprobes_info_t *data);
100 // internal bookkeeping of storage
101 extern char *p_buffer;
103 // list of selected non-predefined kernel probes
104 extern struct hlist_head kernel_probes;
106 // multiple handlers stuff
107 /*struct dbi_modules_handlers {
108 struct list_head modules_handlers;
112 struct dbi_modules_handlers_info {
113 struct module *dbi_module;
114 struct handler_map *dbi_handlers;
116 struct list_head dbi_list_head;
119 extern int dbi_register_handlers_module(struct dbi_modules_handlers_info *dbi_mhi);
120 extern int dbi_unregister_handlers_module(struct dbi_modules_handlers_info *dbi_mhi);
121 //unsigned long get_dbi_modules_handlers(void);*/
124 extern int event_mask;
126 // process pid to instrument
127 extern unsigned int inst_pid;
131 struct list_head list;
134 struct jprobe jprobe;
135 struct kretprobe retprobe;
136 unsigned long offset;
137 unsigned long got_addr;
139 unsigned flag_retprobe:1;
146 struct jprobe jprobe;
148 struct list_head list;
156 signed char reg; // -1 - memory, 0..127 - register number
158 struct list_head list;
159 } us_proc_vtp_data_t;
165 unsigned real_func_addr;
172 struct dentry *m_f_dentry;
176 us_proc_vtp_t *p_vtps;
179 us_proc_plt_t *p_plt;
180 unsigned long vma_start;
181 unsigned long vma_end;
189 struct dentry *m_f_dentry;
191 unsigned unres_ips_count;
192 unsigned unres_vtps_count;
193 //kprobe_opcode_t *mapped_codelets;
196 us_proc_lib_t *p_libs;
199 struct sspt_procs *pp;
205 unsigned int inst_type;
217 dex_proc_ip_t *p_ips;
223 /* cond data itself */
224 struct event_tmpl tmpl;
226 struct list_head list;
227 /* has been applied (for start and stop conditions) */
231 extern struct cond cond_list;
233 /* macros for testing flags */
234 #define ET_FIELD_CLR(flags, field) (flags &= ~field)
235 #define ET_FIELD_SET(flags, field) (flags |= field)
236 #define ET_FIELD_ISSET(flags, field) ((flags & field) != 0)
238 extern inst_us_proc_t us_proc_info;
239 extern inst_dex_proc_t dex_proc_info;
241 #endif /* !defined(__STORAGE_H__) */