1 // SPDX-License-Identifier: GPL-2.0
17 	sigusr1_received = (int)(long long)i->si_value.sival_ptr;  in sigusr1_siginfo_handler()
21 				    bool signal_thread, bool remote)  in test_send_signal_common()  argument
26 	int err = -1, pmu_fd = -1;  in test_send_signal_common()
30 	pid_t pid;  in test_send_signal_common()  local
42 	pid = fork();  in test_send_signal_common()
43 	if (!ASSERT_GE(pid, 0, "fork")) {  in test_send_signal_common()
51 	if (pid == 0) {  in test_send_signal_common()
53 		if (remote) {  in test_send_signal_common()
56 			ASSERT_NEQ(sigaction(SIGUSR1, &sa, NULL), -1, "sigaction");  in test_send_signal_common()
68 		if (!remote) {  in test_send_signal_common()
72 			ASSERT_OK(setpriority(PRIO_PROCESS, 0, -20), "setpriority");  in test_send_signal_common()
84 			if (remote)  in test_send_signal_common()
101 		if (!remote)  in test_send_signal_common()
120 	if (remote) {  in test_send_signal_common()
124 		ASSERT_OK(setpriority(PRIO_PROCESS, 0, -20), "setpriority");  in test_send_signal_common()
130 			err = -1;  in test_send_signal_common()
134 		if (!remote)  in test_send_signal_common()
135 			pmu_fd = syscall(__NR_perf_event_open, attr, pid, -1 /* cpu */,  in test_send_signal_common()
136 					 -1 /* group id */, 0 /* flags */);  in test_send_signal_common()
138 			pmu_fd = syscall(__NR_perf_event_open, attr, getpid(), -1 /* cpu */,  in test_send_signal_common()
139 					 -1 /* group id */, 0 /* flags */);  in test_send_signal_common()
141 			err = -1;  in test_send_signal_common()
145 		skel->links.send_signal_perf =  in test_send_signal_common()
146 			bpf_program__attach_perf_event(skel->progs.send_signal_perf, pmu_fd);  in test_send_signal_common()
147 		if (!ASSERT_OK_PTR(skel->links.send_signal_perf, "attach_perf_event"))  in test_send_signal_common()
155 	skel->bss->signal_thread = signal_thread;  in test_send_signal_common()
156 	skel->bss->sig = SIGUSR1;  in test_send_signal_common()
157 	if (!remote) {  in test_send_signal_common()
158 		skel->bss->target_pid = 0;  in test_send_signal_common()
159 		skel->bss->pid = pid;  in test_send_signal_common()
161 		skel->bss->target_pid = pid;  in test_send_signal_common()
162 		skel->bss->pid = getpid();  in test_send_signal_common()
169 		/* For the remote test, the BPF program is triggered from this  in test_send_signal_common()
172 		if (remote) {  in test_send_signal_common()
183 		if (err == -EAGAIN && retry_count++ < 10000)  in test_send_signal_common()
190 		err = -1;  in test_send_signal_common()
204 	if (remote)  in test_send_signal_common()
212 static void test_send_signal_tracepoint(bool signal_thread, bool remote)  in test_send_signal_tracepoint()  argument
214 	test_send_signal_common(NULL, signal_thread, remote);  in test_send_signal_tracepoint()
217 static void test_send_signal_perf(bool signal_thread, bool remote)  in test_send_signal_perf()  argument
226 	test_send_signal_common(&attr, signal_thread, remote);  in test_send_signal_perf()
229 static void test_send_signal_nmi(bool signal_thread, bool remote)  in test_send_signal_nmi()  argument
242 	pmu_fd = syscall(__NR_perf_event_open, &attr, 0 /* pid */,  in test_send_signal_nmi()
243 			 -1 /* cpu */, -1 /* group_fd */, 0 /* flags */);  in test_send_signal_nmi()
244 	if (pmu_fd == -1) {  in test_send_signal_nmi()
256 	test_send_signal_common(&attr, signal_thread, remote);  in test_send_signal_nmi()
274 	/* Signal remote thread and thread group */  in test_send_signal()