Based on @firelizzard18’s work in
https://github.com/ftrias/TeensyDebug/issues/4#issuecomment-783658913,
I verified that debugging functions works both in RAM and in flash:
```
"/home/michael/Downloads/arduino-1.8.13/hardware/teensy/../tools/arm/bin//arm-none-eabi-gdb" -ex "target extended-remote /dev/ttyACM1" "/tmp/arduino_build_978572/gdb.ino.elf"
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/home/michael/.gdbinit:47: Error in sourced command file:
Scripting in the "Python" language is not supported in this copy of GDB.
Reading symbols from /tmp/arduino_build_978572/gdb.ino.elf...done.
Remote debugging using /dev/ttyACM1
HardwareSerial::addToSerialEventsList (
this=0x0 <HardwareSerial::addToSerialEventsList()>)
at /home/michael/Downloads/arduino-1.8.13/hardware/teensy/avr/cores/teensy3/HardwareSerial.cpp:42
42 s_serials_with_serial_events[s_count_serials_with_serial_events++] = this;
(gdb) b test_function
Breakpoint 1 at 0x49c: file /home/michael/Arduino/gdb/gdb.ino, line 13.
(gdb) c
Continuing.
Breakpoint 1, test_function () at /home/michael/Arduino/gdb/gdb.ino:13
13 void test_function() {
(gdb) bt
#0 test_function () at /home/michael/Arduino/gdb/gdb.ino:13
#1 0x000004d0 in loop () at /home/michael/Arduino/gdb/gdb.ino:21
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb)
```
There are a couple wasys of doing it. Your code was comparing an address to a uint32_t value... So I simply did cast of the address to uint32_t...
Other option would be to change your definitions of things like FLASH_START to simply be a uint32_t.
Warning it also include a change to .gitignore as to keep changes brought in by VisualMicro to being uploaded to project
Fernando Trias
Michael Stapelberg
luni64
Fernando Trias
Kurt Eckhardt