bsd/kern/kern_pcsamples.c

40 unsigned int * 	pc_buffer   = 0;   /* buffer that holds each pc */
57 static pid_t global_state_pid = -1;       /* Used to control exclusive use of pc_buffer */
144 		if (pc_bufptr > pc_buffer)
172 	pc_bufsize = npcbufs * sizeof(* pc_buffer);
175 	  pc_buffer = (unsigned int *) pc_buftomem;
177 	  pc_buffer = NULL;
179 	if (pc_buffer) {
180 		pc_bufptr = pc_buffer;
198 	if (pc_bufsize && pc_buffer)
199 		kmem_free(kernel_map, (vm_offset_t)pc_buffer, pc_bufsize);
211 	if(pc_bufsize && pc_buffer)
212 	  kmem_free(kernel_map, (vm_offset_t)pc_buffer, pc_bufsize);
213 	pc_buffer   = NULL;
312 		        else if ((pc_bufsize <= 0) || (!pc_buffer))
339 				/* pc_bufptr = pc_buffer; */
419 	count = (*number)/sizeof(* pc_buffer);
421 	if (count && pc_bufsize && pc_buffer)
423 	      copycount = pc_bufptr - pc_buffer;
435 	      if(copyout(pc_buffer, buffer, copycount * sizeof(* pc_buffer)))
441 	      pc_bufptr = pc_buffer;