13  * Child subroutine that performs a load on the address, then traps
24  * Child subroutine that performs a load on the first address, then a load on
173  * Checks if we can place at least 2 watchpoints on the child process
186  * Wrapper around a plain fork() call that sets up the child for
187  * ptrace-ing. Both the parent and child return from this, though
188  * the child is stopped until ptrace_cont(pid) is run by the parent.
197 		FAIL_IF_MSG(1, "Failed to fork child");  in ptrace_fork_child()
201 		FAIL_IF_EXIT_MSG(raise(SIGSTOP), "Child failed to raise SIGSTOP");  in ptrace_fork_child()
203 		/* Synchronise on child SIGSTOP */  in ptrace_fork_child()
204 		FAIL_IF_MSG(waitpid(*pid, &status, 0) == -1, "Failed to wait for child");  in ptrace_fork_child()
205 		FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in ptrace_fork_child()
218  * semantics. E.g., if ptrace changes the child PC, we don't even execute the
221  * When the child is stopped for ptrace, we test both continue and single step.
231 	pid_t pid;	/* PID of child process */  in same_watch_addr_test()
232 	void *pc;	/* Most recently fetched child PC value */  in same_watch_addr_test()
233 	int status;	/* Stop status of child after waitpid */  in same_watch_addr_test()
234 	unsigned long value;	/* Dummy value to be read/written to by child */  in same_watch_addr_test()
259 	/* Let the child run. It should stop on the ptrace watchpoint */  in same_watch_addr_test()
260 	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");  in same_watch_addr_test()
262 	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");  in same_watch_addr_test()
263 	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in same_watch_addr_test()
264 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
265 	FAIL_IF_MSG(pc != same_watch_addr_load, "Child did not stop on load instruction");  in same_watch_addr_test()
275 	FAIL_IF_MSG(ptrace_singlestep(pid, 0), "Failed to single step child");  in same_watch_addr_test()
277 	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");  in same_watch_addr_test()
278 	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in same_watch_addr_test()
279 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
292 	FAIL_IF_MSG(ptrace_setreg_pc(pid, same_watch_addr_load), "Failed to set child PC");  in same_watch_addr_test()
293 	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");  in same_watch_addr_test()
295 	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");  in same_watch_addr_test()
296 	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in same_watch_addr_test()
297 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
298 	FAIL_IF_MSG(pc != same_watch_addr_load, "Child did not stop on load trap");  in same_watch_addr_test()
303 	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");  in same_watch_addr_test()
305 	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");  in same_watch_addr_test()
306 	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in same_watch_addr_test()
307 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
308 	FAIL_IF_MSG(pc != same_watch_addr_trap, "Child did not stop on end trap");  in same_watch_addr_test()
313 	 * If we set the child PC back to the load instruction, then continue,  in same_watch_addr_test()
317 	FAIL_IF_MSG(ptrace_setreg_pc(pid, same_watch_addr_load), "Failed to set child PC");  in same_watch_addr_test()
318 	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");  in same_watch_addr_test()
320 	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");  in same_watch_addr_test()
321 	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in same_watch_addr_test()
322 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
323 	FAIL_IF_MSG(pc != same_watch_addr_trap, "Child did not stop on end trap");  in same_watch_addr_test()
328 	 * If we set the child PC back to the load instruction, set a ptrace  in same_watch_addr_test()
335 	FAIL_IF_MSG(ptrace_setreg_pc(pid, same_watch_addr_load), "Failed to set child PC");  in same_watch_addr_test()
336 	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");  in same_watch_addr_test()
338 	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");  in same_watch_addr_test()
339 	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in same_watch_addr_test()
340 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
341 	FAIL_IF_MSG(pc != same_watch_addr_load, "Child did not stop on load instruction");  in same_watch_addr_test()
350 	FAIL_IF_MSG(ptrace_setreg_pc(pid, same_watch_addr_load + 4), "Failed to set child PC");  in same_watch_addr_test()
351 	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");  in same_watch_addr_test()
353 	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");  in same_watch_addr_test()
354 	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in same_watch_addr_test()
355 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
356 	FAIL_IF_MSG(pc != same_watch_addr_trap, "Child did not stop on end trap");  in same_watch_addr_test()
360 	/* Clean up child */  in same_watch_addr_test()
361 	FAIL_IF_MSG(kill(pid, SIGKILL) != 0, "Failed to kill child");  in same_watch_addr_test()
385 	pid_t pid;	/* PID of child process */  in perf_then_ptrace_test()
386 	void *pc;	/* Most recently fetched child PC value */  in perf_then_ptrace_test()
387 	int status;	/* Stop status of child after waitpid */  in perf_then_ptrace_test()
397 	 * If we are the child, run a subroutine that reads the perf value,  in perf_then_ptrace_test()
419 	/* Let the child run. It should stop on the ptrace watchpoint */  in perf_then_ptrace_test()
420 	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");  in perf_then_ptrace_test()
422 	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");  in perf_then_ptrace_test()
423 	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");  in perf_then_ptrace_test()
424 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in perf_then_ptrace_test()
425 	FAIL_IF_MSG(pc != perf_then_ptrace_load2, "Child did not stop on ptrace load");  in perf_then_ptrace_test()
431 	/* Clean up child */  in perf_then_ptrace_test()
432 	FAIL_IF_MSG(kill(pid, SIGKILL) != 0, "Failed to kill child");  in perf_then_ptrace_test()