1 /*
2  * This file is part of the MicroPython project, http://micropython.org/
3  *
4  * The MIT License (MIT)
5  *
6  * Copyright (c) SatoshiLabs
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a copy
9  * of this software and associated documentation files (the "Software"), to deal
10  * in the Software without restriction, including without limitation the rights
11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12  * copies of the Software, and to permit persons to whom the Software is
13  * furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24  * THE SOFTWARE.
25  */
26 
27 #ifndef MICROPY_INCLUDED_PY_PROFILING_H
28 #define MICROPY_INCLUDED_PY_PROFILING_H
29 
30 #include "py/emitglue.h"
31 
32 #if MICROPY_PY_SYS_SETTRACE
33 
34 #define mp_prof_is_executing MP_STATE_THREAD(prof_callback_is_executing)
35 
36 typedef struct _mp_obj_code_t {
37     mp_obj_base_t base;
38     const mp_raw_code_t *rc;
39     mp_obj_dict_t *dict_locals;
40     mp_obj_t lnotab;
41 } mp_obj_code_t;
42 
43 typedef struct _mp_obj_frame_t {
44     mp_obj_base_t base;
45     const mp_code_state_t *code_state;
46     struct _mp_obj_frame_t *back;
47     mp_obj_t callback;
48     mp_obj_code_t *code;
49     mp_uint_t lasti;
50     mp_uint_t lineno;
51     bool trace_opcodes;
52 } mp_obj_frame_t;
53 
54 void mp_prof_extract_prelude(const byte *bytecode, mp_bytecode_prelude_t *prelude);
55 
56 mp_obj_t mp_obj_new_code(const mp_raw_code_t *rc);
57 mp_obj_t mp_obj_new_frame(const mp_code_state_t *code_state);
58 
59 // This is the implementation for the sys.settrace
60 mp_obj_t mp_prof_settrace(mp_obj_t callback);
61 
62 mp_obj_t mp_prof_frame_enter(mp_code_state_t *code_state);
63 mp_obj_t mp_prof_frame_update(const mp_code_state_t *code_state);
64 
65 // For every VM instruction tick this function deduces events from the state
66 mp_obj_t mp_prof_instr_tick(mp_code_state_t *code_state, bool is_exception);
67 
68 // This section is for debugging the settrace feature itself, and is not intended
69 // to be included in production/release builds.
70 #define MICROPY_PROF_INSTR_DEBUG_PRINT_ENABLE 0
71 #if MICROPY_PROF_INSTR_DEBUG_PRINT_ENABLE
72 void mp_prof_print_instr(const byte *ip, mp_code_state_t *code_state);
73 #define MP_PROF_INSTR_DEBUG_PRINT(current_ip) mp_prof_print_instr((current_ip), code_state)
74 #else
75 #define MP_PROF_INSTR_DEBUG_PRINT(current_ip)
76 #endif
77 
78 #endif // MICROPY_PY_SYS_SETTRACE
79 #endif // MICROPY_INCLUDED_PY_PROFILING_H
80