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__)
24 #include "probes_manager.h"
26 #include "event_tmpl.h"
28 ///////////////////////////////////////////////////////////////////////////////////////////////////
30 #ifndef __DISABLE_RELAYFS
31 extern struct rchan* GetRelayChannel(void);
32 extern struct dentry* GetRelayDir(void);
33 #endif //__DISABLE_RELAYFS
35 extern int EnableMultipleBuffer(void);
36 extern int DisableMultipleBuffer(void);
37 extern int EnableContinuousRetrieval(void);
38 extern int DisableContinuousRetrieval(void);
40 ///////////////////////////////////////////////////////////////////////////////////////////////////
42 extern unsigned int GetBufferSize(void);
43 extern int SetBufferSize(unsigned int nSize);
44 extern int ResetBuffer(void);
46 //extern spinlock_t buffer_spinlock;
48 ///////////////////////////////////////////////////////////////////////////////////////////////////
51 Functions "storage_init()" and "storage_down()" are for initialization and
52 shutdown respectively.
54 extern int storage_init (void);
55 extern void storage_down (void);
58 Function "pack_event_info()" saves information about event into buffer. It
59 is used in 'probes' to pack and save event data.
61 extern void pack_event_info (probe_id_t probe_id, record_type_t record_type, const char *fmt, ...);
63 /* Set most links from us_proc_info to data in the bundle */
66 /* Undo the actions of link_bundle() */
70 Adds non-predefined kernel probe to the list.
72 extern int add_probe_to_list (unsigned long addr, kernel_probe_t ** pprobe);
75 Removes non-predefined kernel probe from the list.
77 extern int remove_probe_from_list (unsigned long addr);
80 Searches non-predefined kernel probe in the list.
82 extern kernel_probe_t *find_probe (unsigned long addr);
85 Copies event from user space to buffer and updates its pid/tid/cpu/time.
87 extern int put_us_event (char *data, unsigned long len);
92 extern int set_event_mask (int new_mask);
97 extern int get_event_mask (int *mask);
100 Sets predefined user space probes info.
102 extern int set_predef_uprobes (ioctl_predef_uprobes_info_t *data);
104 Gets predefined user space probes info length.
106 extern int get_predef_uprobes_size(int *size);
108 Gets predefined user space probes info.
110 extern int get_predef_uprobes(ioctl_predef_uprobes_info_t *data);
113 // internal bookkeeping of storage
114 extern char *p_buffer;
116 // list of selected non-predefined kernel probes
117 extern struct hlist_head kernel_probes;
120 extern int event_mask;
126 struct jprobe jprobe;
127 struct kretprobe retprobe;
128 unsigned long offset;
134 struct jprobe jprobe;
136 struct list_head list;
144 signed char reg; // -1 - memory, 0..127 - register number
146 struct list_head list;
147 } us_proc_vtp_data_t;
149 typedef struct dentry *STRUCT_DENTRY_PTR;
154 STRUCT_DENTRY_PTR m_f_dentry;
158 us_proc_vtp_t *p_vtps;
165 STRUCT_DENTRY_PTR m_f_dentry;
167 unsigned unres_ips_count;
168 unsigned unres_vtps_count;
169 //kprobe_opcode_t *mapped_codelets;
171 us_proc_lib_t *p_libs;
175 /* cond data itself */
176 struct event_tmpl tmpl;
178 struct list_head list;
179 /* has been applied (for start and stop conditions) */
183 extern struct cond cond_list;
185 /* macros for testing flags */
186 #define ET_FIELD_CLR(flags, field) (flags &= ~field)
187 #define ET_FIELD_SET(flags, field) (flags |= field)
188 #define ET_FIELD_ISSET(flags, field) ((flags & field) != 0)
190 extern inst_us_proc_t us_proc_info;
193 #endif /* !defined(__STORAGE_H__) */