1 /* Unwinding of frames like gstack/pstack.
63 struct frames  struct
65   int frames;  member
96 /* Whether any frames have been shown at all.  Determines exit status.  */
99 /* Program exit codes. All frames shown without any errors is GOOD.
100    Some frames shown with some non-fatal errors is an ERROR.  A fatal
101    error or no frames shown at all is BAD.  A command line USAGE exit
180   struct frames *frames = (struct frames *) arg;  in frame_callback()  local
181   int nr = frames->frames;  in frame_callback()
182   if (! dwfl_frame_pc (state, &frames->frame[nr].pc,  in frame_callback()
183 		       &frames->frame[nr].isactivation))  in frame_callback()
186   frames->frames++;  in frame_callback()
187   if (frames->frames == maxframes)  in frame_callback()
190   if (frames->frames == frames->allocated)  in frame_callback()
192       frames->allocated *= 2;  in frame_callback()
193       frames->frame = realloc (frames->frame,  in frame_callback()
194 			       sizeof (struct frame) * frames->allocated);  in frame_callback()
195       if (frames->frame == NULL)  in frame_callback()
196 	error (EXIT_BAD, errno, "realloc frames.frame");  in frame_callback()
364 print_frames (struct frames *frames, pid_t tid, int dwflerr, const char *what)  in print_frames()  argument
366   if (frames->frames > 0)  in print_frames()
371   for (int nr = 0; nr < frames->frames && (maxframes == 0  in print_frames()
374       Dwarf_Addr pc = frames->frame[nr].pc;  in print_frames()
375       bool isactivation = frames->frame[nr].isactivation;  in print_frames()
425   if (frames->frames > 0 && frame_nr == maxframes)  in print_frames()
426     error (0, 0, "tid %lld: shown max number of frames "  in print_frames()
430       if (frames->frames > 0)  in print_frames()
432 	  unsigned nr = frames->frames - 1;  in print_frames()
433 	  Dwarf_Addr pc = frames->frame[nr].pc;  in print_frames()
434 	  bool isactivation = frames->frame[nr].isactivation;  in print_frames()
459   struct frames *frames = (struct frames *) thread_arg;  in thread_callback()  local
462   frames->frames = 0;  in thread_callback()
474   print_frames (frames, tid, err, "dwfl_thread_getframes");  in thread_callback()
659 …N_("Additionally show inlined function frames using DWARF debuginfo if available (implies -d)"), 0…  in main()
687 Program exits with return code 0 if all frames were shown without \  in main()
688 any errors.  If some frames were shown, but there were some non-fatal \  in main()
690 with return code 1.  If no frames could be shown, or a fatal error \  in main()
705   struct frames frames;  in main()  local
708   frames.allocated = maxframes == 0 ? 2048 : maxframes;  in main()
709   frames.frames = 0;  in main()
710   frames.frame = malloc (sizeof (struct frame) * frames.allocated);  in main()
711   if (frames.frame == NULL)  in main()
712     error (EXIT_BAD, errno, "malloc frames.frame");  in main()
717       switch (dwfl_getthread_frames (dwfl, pid, frame_callback, &frames))  in main()
728       print_frames (&frames, pid, err, "dwfl_getthread_frames");  in main()
734       switch (dwfl_getthreads (dwfl, thread_callback, &frames))  in main()
746   free (frames.frame);  in main()
760     error (EXIT_BAD, 0, N_("Couldn't show any frames."));  in main()