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>
25 #include <dbi_kprobes.h>
29 #include "probes_manager.h"
31 #include "event_tmpl.h"
32 #include "error_storage.h"
34 extern int EnableContinuousRetrieval(void);
35 extern int DisableContinuousRetrieval(void);
37 ///////////////////////////////////////////////////////////////////////////////////////////////////
39 extern unsigned int GetBufferSize(void);
40 extern int SetBufferSize(unsigned int nSize);
41 extern int ResetBuffer(void);
43 extern int SetPid(unsigned int pid);
45 //extern spinlock_t buffer_spinlock;
47 ///////////////////////////////////////////////////////////////////////////////////////////////////
50 Functions "storage_init()" and "storage_down()" are for initialization and
51 shutdown respectively.
53 extern int storage_init (void);
54 extern void storage_down (void);
57 Function "pack_event_info()" saves information about event into buffer. It
58 is used in 'probes' to pack and save event data.
60 extern void pack_task_event_info (struct task_struct *task, probe_id_t probe_id,
61 record_type_t record_type, const char *fmt, ...);
62 #define pack_event_info(probe_id, record_type, fmt, ...) \
63 pack_task_event_info(current, probe_id, record_type, fmt, __VA_ARGS__)
65 /* Set most links from us_proc_info to data in the bundle */
66 int link_bundle(void);
67 /* Undo the actions of link_bundle() */
68 void unlink_bundle(void);
70 void dbi_find_and_set_handler_for_probe(unsigned long addr,
71 unsigned long *pre_entry,
72 unsigned long *jp_handler,
73 unsigned long *rp_handler);
76 Copies event from user space to buffer and updates its pid/tid/cpu/time.
78 extern int put_us_event (char *data, unsigned long len);
83 extern int set_event_mask (int new_mask);
88 extern int get_event_mask (int *mask);
91 Sets predefined user space probes info.
93 extern int set_predef_uprobes (ioctl_predef_uprobes_info_t *data);
95 Gets predefined user space probes info length.
97 extern int get_predef_uprobes_size(int *size);
99 Gets predefined user space probes info.
101 extern int get_predef_uprobes(ioctl_predef_uprobes_info_t *data);
104 // internal bookkeeping of storage
105 extern char *p_buffer;
107 // multiple handlers stuff
108 /*struct dbi_modules_handlers {
109 struct list_head modules_handlers;
113 struct dbi_modules_handlers_info {
114 struct module *dbi_module;
115 struct handler_map *dbi_handlers;
117 struct list_head dbi_list_head;
120 extern int dbi_register_handlers_module(struct dbi_modules_handlers_info *dbi_mhi);
121 extern int dbi_unregister_handlers_module(struct dbi_modules_handlers_info *dbi_mhi);
122 //unsigned long get_dbi_modules_handlers(void);*/
125 extern int event_mask;
127 // process pid to instrument
128 extern unsigned int inst_pid;
132 struct list_head list;
135 struct jprobe jprobe;
136 struct kretprobe retprobe;
137 unsigned long offset;
138 unsigned long got_addr;
140 unsigned flag_retprobe:1;
147 struct jprobe jprobe;
149 struct list_head list;
157 signed char reg; // -1 - memory, 0..127 - register number
159 struct list_head list;
160 } us_proc_vtp_data_t;
166 unsigned real_func_addr;
173 struct dentry *m_f_dentry;
177 us_proc_vtp_t *p_vtps;
180 us_proc_plt_t *p_plt;
181 unsigned long vma_start;
182 unsigned long vma_end;
190 struct dentry *m_f_dentry;
192 unsigned unres_ips_count;
193 unsigned unres_vtps_count;
194 //kprobe_opcode_t *mapped_codelets;
197 us_proc_lib_t *p_libs;
200 struct sspt_proc *pp;
206 unsigned int inst_type;
218 dex_proc_ip_t *p_ips;
224 /* cond data itself */
225 struct event_tmpl tmpl;
227 struct list_head list;
228 /* has been applied (for start and stop conditions) */
232 extern struct cond cond_list;
234 /* macros for testing flags */
235 #define ET_FIELD_CLR(flags, field) (flags &= ~field)
236 #define ET_FIELD_SET(flags, field) (flags |= field)
237 #define ET_FIELD_ISSET(flags, field) ((flags & field) != 0)
239 extern inst_us_proc_t us_proc_info;
240 extern inst_dex_proc_t dex_proc_info;
242 #endif /* !defined(__STORAGE_H__) */