1 // SPDX-License-Identifier: GPL-2.0+
17 /* Overlapping address range */
21 /* Non-overlapping address range */
38 	while (getline(&line, &len, fp) != -1) {  in pid_max_addr()
51 	return -1;  in pid_max_addr()
57 	attr->type           = PERF_TYPE_BREAKPOINT;  in perf_user_event_attr_set()
58 	attr->size           = sizeof(struct perf_event_attr);  in perf_user_event_attr_set()
59 	attr->bp_type        = HW_BREAKPOINT_R;  in perf_user_event_attr_set()
60 	attr->bp_addr        = addr;  in perf_user_event_attr_set()
61 	attr->bp_len         = len;  in perf_user_event_attr_set()
62 	attr->exclude_kernel = 1;  in perf_user_event_attr_set()
63 	attr->exclude_hv     = 1;  in perf_user_event_attr_set()
69 	attr->type           = PERF_TYPE_BREAKPOINT;  in perf_kernel_event_attr_set()
70 	attr->size           = sizeof(struct perf_event_attr);  in perf_kernel_event_attr_set()
71 	attr->bp_type        = HW_BREAKPOINT_R;  in perf_kernel_event_attr_set()
72 	attr->bp_addr        = pid_max_addr();  in perf_kernel_event_attr_set()
73 	attr->bp_len         = sizeof(unsigned long);  in perf_kernel_event_attr_set()
74 	attr->exclude_user   = 1;  in perf_kernel_event_attr_set()
75 	attr->exclude_hv     = 1;  in perf_kernel_event_attr_set()
83 	return syscall(__NR_perf_event_open, &attr, -1, cpu, -1, 0);  in perf_cpu_event_open()
91 	return syscall(__NR_perf_event_open, &attr, child_pid, -1, -1, 0);  in perf_thread_event_open()
99 	return syscall(__NR_perf_event_open, &attr, child_pid, cpu, -1, 0);  in perf_thread_cpu_event_open()
107 	return syscall(__NR_perf_event_open, &attr, child_pid, -1, -1, 0);  in perf_thread_kernel_event_open()
115 	return syscall(__NR_perf_event_open, &attr, -1, cpu, -1, 0);  in perf_cpu_kernel_event_open()
127 	kill(getpid(), SIGUSR1); /* --> parent (SIGUSR1) */  in child()
135 	info->version = 1;  in ptrace_ppc_hw_breakpoint()
136 	info->trigger_type = type;  in ptrace_ppc_hw_breakpoint()
137 	info->condition_mode = PPC_BREAKPOINT_CONDITION_NONE;  in ptrace_ppc_hw_breakpoint()
138 	info->addr = addr;  in ptrace_ppc_hw_breakpoint()
139 	info->addr2 = addr + len;  in ptrace_ppc_hw_breakpoint()
140 	info->condition_value = 0;  in ptrace_ppc_hw_breakpoint()
142 		info->addr_mode = PPC_BREAKPOINT_MODE_EXACT;  in ptrace_ppc_hw_breakpoint()
144 		info->addr_mode = PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE;  in ptrace_ppc_hw_breakpoint()
164 	 *		if (addr range overlaps)  in test1()
170 		return -1;  in test1()
174 		ret = -1;  in test1()
176 	close(perf_fd);  in test1()
189 	 *		if (addr range does not overlaps)  in test2()
195 		return -1;  in test2()
199 		ret = -1;  in test2()
205 	close(perf_fd);  in test2()
218 	 *		if (addr range overlaps)  in test3()
224 		return -1;  in test3()
228 		ret = -1;  in test3()
230 	close(perf_fd);  in test3()
243 	 *		if (addr range does not overlaps)  in test4()
249 		return -1;  in test4()
253 		ret = -1;  in test4()
259 	close(perf_fd);  in test4()
284 		ret = -1;  in test5()
290 		ret = -1;  in test5()
296 	close(perf_fd);  in test5()
312 	 * -- OR --  in test6()
319 		return -1;  in test6()
323 		ret = -1;  in test6()
326 	close(perf_fd);  in test6()
330 		ret = -1;  in test6()
333 	close(perf_fd);  in test6()
349 	 *		if (addr range overlaps)  in test7()
354 		return -1;  in test7()
359 		ret = -1;  in test7()
374 	 *		if (addr range does not overlaps)  in test8()
379 		return -1;  in test8()
384 		ret = -1;  in test8()
387 	close(perf_fd);  in test8()
408 		return -1;  in test9()
419 		ret = -1;  in test9()
422 	close(perf_fd);  in test9()
439 	 *		if (addr range overlaps)  in test10()
444 		return -1;  in test10()
448 		ret = -1;  in test10()
463 	 *		if (addr range does not overlap)  in test11()
468 		return -1;  in test11()
472 		ret = -1;  in test11()
475 	close(perf_fd);  in test11()
491 	 *		if (addr range overlaps)  in test12()
496 		return -1;  in test12()
500 		ret = -1;  in test12()
515 	 *		if (addr range does not overlap)  in test13()
520 		return -1;  in test13()
524 		ret = -1;  in test13()
527 	close(perf_fd);  in test13()
548 		return -1;  in test14()
560 		ret = -1;  in test14()
563 	close(perf_fd);  in test14()
584 	"perf cpu event -> ptrace thread event (Overlapping)",
585 	"perf cpu event -> ptrace thread event (Non-overlapping)",
586 	"perf thread event -> ptrace same thread event (Overlapping)",
587 	"perf thread event -> ptrace same thread event (Non-overlapping)",
588 	"perf thread event -> ptrace other thread event",
589 	"ptrace thread event -> perf kernel event",
590 	"ptrace thread event -> perf same thread event (Overlapping)",
591 	"ptrace thread event -> perf same thread event (Non-overlapping)",
592 	"ptrace thread event -> perf other thread event",
593 	"ptrace thread event -> perf cpu event (Overlapping)",
594 	"ptrace thread event -> perf cpu event (Non-overlapping)",
595 	"ptrace thread event -> perf same thread & cpu event (Overlapping)",
596 	"ptrace thread event -> perf same thread & cpu event (Non-overlapping)",
597 	"ptrace thread event -> perf other thread & cpu event",
626 		exit(-1);  in get_dbginfo()
641 	wait(NULL); /* <-- child (SIGUSR1) */  in ptrace_perf_hwbreak()
648 	close(ret);  in ptrace_perf_hwbreak()
658 	return test_harness(ptrace_perf_hwbreak, "ptrace-perf-hwbreak");  in main()