39 static inline long sys_ptrace(long request, pid_t pid, unsigned long addr, unsigned long data)  in sys_ptrace()  argument
41 	return syscall(__NR_ptrace, request, pid, addr, data);  in sys_ptrace()
49 static long ptrace_getregs(pid_t pid, struct pt_regs *result)  in ptrace_getregs()  argument
51 	return sys_ptrace(PTRACE_GETREGS, pid, 0, (unsigned long)result);  in ptrace_getregs()
54 static long ptrace_setregs(pid_t pid, struct pt_regs *result)  in ptrace_setregs()  argument
56 	return sys_ptrace(PTRACE_SETREGS, pid, 0, (unsigned long)result);  in ptrace_setregs()
59 static long ptrace_cont(pid_t pid, long signal)  in ptrace_cont()  argument
61 	return sys_ptrace(PTRACE_CONT, pid, 0, signal);  in ptrace_cont()
64 static long ptrace_singlestep(pid_t pid, long signal)  in ptrace_singlestep()  argument
66 	return sys_ptrace(PTRACE_SINGLESTEP, pid, 0, signal);  in ptrace_singlestep()
69 static long ppc_ptrace_gethwdbginfo(pid_t pid, struct ppc_debug_info *dbginfo)  in ppc_ptrace_gethwdbginfo()  argument
71 	return sys_ptrace(PPC_PTRACE_GETHWDBGINFO, pid, 0, (unsigned long)dbginfo);  in ppc_ptrace_gethwdbginfo()
74 static long ppc_ptrace_sethwdbg(pid_t pid, struct ppc_hw_breakpoint *bp_info)  in ppc_ptrace_sethwdbg()  argument
76 	return sys_ptrace(PPC_PTRACE_SETHWDEBUG, pid, 0, (unsigned long)bp_info);  in ppc_ptrace_sethwdbg()
79 static long ppc_ptrace_delhwdbg(pid_t pid, int bp_id)  in ppc_ptrace_delhwdbg()  argument
81 	return sys_ptrace(PPC_PTRACE_DELHWDEBUG, pid, 0L, bp_id);  in ppc_ptrace_delhwdbg()
84 static long ptrace_getreg_pc(pid_t pid, void **pc)  in ptrace_getreg_pc()  argument
89 	err = ptrace_getregs(pid, &regs);  in ptrace_getreg_pc()
98 static long ptrace_setreg_pc(pid_t pid, void *pc)  in ptrace_setreg_pc()  argument
103 	err = ptrace_getregs(pid, &regs);  in ptrace_setreg_pc()
109 	err = ptrace_setregs(pid, &regs);  in ptrace_setreg_pc()
116 static int perf_event_open(struct perf_event_attr *attr, pid_t pid, int cpu,  in perf_event_open()  argument
119 	return syscall(__NR_perf_event_open, attr, pid, cpu, group_fd, flags);  in perf_event_open()
175 static int check_watchpoints(pid_t pid)  in check_watchpoints()  argument
179 	FAIL_IF_MSG(ppc_ptrace_gethwdbginfo(pid, &dbginfo), "PPC_PTRACE_GETHWDBGINFO failed");  in check_watchpoints()
190 static int ptrace_fork_child(pid_t *pid)  in ptrace_fork_child()  argument
194 	*pid = fork();  in ptrace_fork_child()
196 	if (*pid < 0)  in ptrace_fork_child()
199 	if (!*pid) {  in ptrace_fork_child()
204 		FAIL_IF_MSG(waitpid(*pid, &status, 0) == -1, "Failed to wait for child");  in ptrace_fork_child()
231 	pid_t pid;	/* PID of child process */  in same_watch_addr_test()  local
237 	err = ptrace_fork_child(&pid);  in same_watch_addr_test()
241 	if (!pid) {  in same_watch_addr_test()
246 	err = check_watchpoints(pid);  in same_watch_addr_test()
251 	perf_fd = perf_watchpoint_open(pid, &value, sizeof(value));  in same_watch_addr_test()
256 	bp_id = ppc_ptrace_sethwdbg(pid, &bp_info);  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()
264 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  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()
279 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
289 	FAIL_IF_MSG(ppc_ptrace_delhwdbg(pid, bp_id), "Failed to remove old ptrace watchpoint");  in same_watch_addr_test()
290 	bp_id = ppc_ptrace_sethwdbg(pid, &bp_info);  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()
297 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  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()
307 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  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()
322 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in same_watch_addr_test()
332 	FAIL_IF_MSG(ppc_ptrace_delhwdbg(pid, bp_id), "Failed to remove old ptrace watchpoint");  in same_watch_addr_test()
333 	bp_id = ppc_ptrace_sethwdbg(pid, &bp_info);  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()
340 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  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()
355 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  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()  local
392 	err = ptrace_fork_child(&pid);  in perf_then_ptrace_test()
400 	if (!pid) {  in perf_then_ptrace_test()
405 	err = check_watchpoints(pid);  in perf_then_ptrace_test()
410 	perf_fd = perf_watchpoint_open(pid, &perf_value, sizeof(perf_value));  in perf_then_ptrace_test()
416 	bp_id = ppc_ptrace_sethwdbg(pid, &bp_info);  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()
424 	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");  in perf_then_ptrace_test()
432 	FAIL_IF_MSG(kill(pid, SIGKILL) != 0, "Failed to kill child");  in perf_then_ptrace_test()