0061d3f97f
Adds a menu item to enable onboard profiling. This requires significant RAM and really only makes sense on devices with PSRAM to store the state. When the menu item is selected, allocates RAM and tracks function calls and periodically samples the PC to generate a histogram of application usage. The onboard gmon.out file can be written over Semihosting or some other way to transfer to a PC for analysis. Adds a profiling example with command lines.
53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
/*
|
|
RP2040 utility class
|
|
|
|
Copyright (c) 2021 Earle F. Philhower, III <earlephilhower@yahoo.com>
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <Arduino.h>
|
|
#include <pico/runtime.h>
|
|
|
|
#ifdef PICO_RP2040
|
|
|
|
#include <hardware/structs/psm.h>
|
|
|
|
extern "C" void boot_double_tap_check();
|
|
|
|
// The following check will never actually execute, but it will cause the boot reset
|
|
// checker to be linked in as part of the constructors.
|
|
|
|
void RP2040::enableDoubleResetBootloader() {
|
|
if (psm_hw->done == 0) {
|
|
boot_double_tap_check();
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef __PROFILE
|
|
Stream *__profileFile;
|
|
int __writeProfileCB(const void *data, int len) {
|
|
return __profileFile->write((const char *)data, len);
|
|
}
|
|
|
|
#ifdef __PROFILE
|
|
extern "C" void runtime_init_setup_profiling();
|
|
#define PICO_RUNTIME_INIT_PROFILING "11011" // Towards the end, after PSRAM
|
|
PICO_RUNTIME_INIT_FUNC_RUNTIME(runtime_init_setup_profiling, PICO_RUNTIME_INIT_PROFILING);
|
|
#endif
|
|
|
|
#endif
|