[question/suggestion] can print stack backtraces?

[atesin]

hi.... could be a way to print something like a stack backtrace? ... i mean, a backward chain of function calls in a given point,,,, imagine something like

void setup(){
  Serial.begin(9600);
  subSetup1();
}

void loop(){
  subLoop1();
}

void subSetup(){
  STACK();
}

void subLoop1(){
  subLoop2();
}

void subLoop2()
  STACK("running");
  BREAK();
}

... that prints something like...

mySketch.ino:11: stack[0] "" = void subSetup()
mySketch.ino:3: stack[1] "" = void setup()
mySketch.ino:19: stack[0] "running" = void subLoop2()
mySketch.ino:15: stack[1] "running" = void subLoop1()
mySketch.ino:7: stack[2] "running" = void loop()

that will look like a collection of TRACE()'s... that would be very useful to follow the program flow and tracking back possible errors or understand the program better.... but i don't imagine how this could be achieved, i am not skilled in c/c++

i got the idea from java, where you can specifically print a backtrace anytime at will, and that backtrace contains all function calls from current point, passing by all involved functions, back to main() ... https://en.wikipedia.org/wiki/Stack_trace