stack.h File Reference

Stack traces. More...

#include <sys/cdefs.h>
#include <arch/types.h>

Go to the source code of this file.

Functions
void	arch_stk_trace (int n)
	Do a stack trace from the current function. More...
void	arch_stk_trace_at (uint32 fp, int n)
	Do a stack trace from the current function. More...

Detailed Description

Stack traces.

The functions in this file deal with doing stack traces. These functions will do a stack trace, as specified, printing it out to stdout (usually a dcload terminal). These functions only work if frame pointers have been enabled at compile time (-DFRAME_POINTERS and no -fomit-frame-pointer flag).

Author

Dan Potter

Function Documentation

void arch_stk_trace

(

int

n

)

Do a stack trace from the current function.

This function does a stack trace from the current function, printing the results to stdout. This is used, for instance, when an assertion fails in assert().

Parameters

n	The number of frames to leave off. Each frame is a jump to subroutine or branch to subroutine. assert() leaves off 2 frames, for reference.

void arch_stk_trace_at	(	uint32	fp,
		int	n
	)

Do a stack trace from the current function.

This function does a stack trace from the the specified frame pointer, printing the results to stdout. This could be used for doing something like stack tracing a main thread from inside an IRQ handler.

Parameters

fp	The frame pointer to start from.
n	The number of frames to leave off.