HelenOS sources

frame_pointer_get   67 kernel/generic/include/stacktrace.h extern uintptr_t frame_pointer_get(void);
frame_pointer_get  103 kernel/generic/src/debug/stacktrace.c 		.fp = frame_pointer_get(),
frame_pointer_get  114 kernel/generic/src/debug/stacktrace.c 	(void) frame_pointer_get();
HelenOS homepage, sources at GitHub