circuitpython/py/modmicropython.c
Dave Hylands 5b7fd20fea Add support for storing args during an exception raised by an irq.
The user code should call micropython.alloc_emergency_exception_buf(size)
where size is the size of the buffer used to print the argument
passed to the exception.

With the test code from #732, and a call to
micropython.alloc_emergenncy_exception_buf(100) the following error is
now printed:
```python
>>> import heartbeat_irq
Uncaught exception in Timer(4) interrupt handler
Traceback (most recent call last):
  File "0://heartbeat_irq.py", line 14, in heartbeat_cb
NameError: name 'led' is not defined
```
2014-07-25 14:00:06 -07:00

86 lines
3.4 KiB
C

/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "mpconfig.h"
#include "misc.h"
#include "qstr.h"
#include "obj.h"
#include "builtin.h"
// Various builtins specific to MicroPython runtime,
// living in micropython module
#if MICROPY_MEM_STATS
STATIC mp_obj_t mp_micropython_mem_total() {
return MP_OBJ_NEW_SMALL_INT((mp_int_t)m_get_total_bytes_allocated());
}
STATIC mp_obj_t mp_micropython_mem_current() {
return MP_OBJ_NEW_SMALL_INT((mp_int_t)m_get_current_bytes_allocated());
}
STATIC mp_obj_t mp_micropython_mem_peak() {
return MP_OBJ_NEW_SMALL_INT((mp_int_t)m_get_peak_bytes_allocated());
}
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mp_micropython_mem_total_obj, mp_micropython_mem_total);
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mp_micropython_mem_current_obj, mp_micropython_mem_current);
STATIC MP_DEFINE_CONST_FUN_OBJ_0(mp_micropython_mem_peak_obj, mp_micropython_mem_peak);
#endif
#if MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF && (MICROPY_EMERGENCY_EXCEPTION_BUF_SIZE == 0)
STATIC MP_DEFINE_CONST_FUN_OBJ_1(mp_alloc_emergency_exception_buf_obj, mp_alloc_emergency_exception_buf);
#endif
STATIC const mp_map_elem_t mp_module_micropython_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_micropython) },
#if MICROPY_MEM_STATS
{ MP_OBJ_NEW_QSTR(MP_QSTR_mem_total), (mp_obj_t)&mp_micropython_mem_total_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mem_current), (mp_obj_t)&mp_micropython_mem_current_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_mem_peak), (mp_obj_t)&mp_micropython_mem_peak_obj },
#endif
#if MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF && (MICROPY_EMERGENCY_EXCEPTION_BUF_SIZE == 0)
{ MP_OBJ_NEW_QSTR(MP_QSTR_alloc_emergency_exception_buf), (mp_obj_t)&mp_alloc_emergency_exception_buf_obj },
#endif
};
STATIC const mp_obj_dict_t mp_module_micropython_globals = {
.base = {&mp_type_dict},
.map = {
.all_keys_are_qstrs = 1,
.table_is_fixed_array = 1,
.used = MP_ARRAY_SIZE(mp_module_micropython_globals_table),
.alloc = MP_ARRAY_SIZE(mp_module_micropython_globals_table),
.table = (mp_map_elem_t*)mp_module_micropython_globals_table,
},
};
const mp_obj_module_t mp_module_micropython = {
.base = { &mp_type_module },
.name = MP_QSTR_micropython,
.globals = (mp_obj_dict_t*)&mp_module_micropython_globals,
};