ptrace supports threads

Fujitsu: POSTK_DEBUG_TEMP_FIX_53, POSTK_DEBUG_ARCH_DEP_44 Refs: #771, #1179, #1143 Change-Id: Ie17ece6864f0eeb0c0e550f4e369abb77980a0d0
2018-09-14 14:50:36 +09:00
parent 28c434a230
commit ed1edb152b
17 changed files with 2513 additions and 575 deletions
--- a/test/issues/771+1179+1143/C771T037.c
+++ b/test/issues/771+1179+1143/C771T037.c
@ -0,0 +1,150 @@
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <pthread.h>
+#include <errno.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/syscall.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/ptrace.h>
+#include <sys/user.h>
+#include <sys/wait.h>
+
+volatile char *m;
+volatile int *x;
+
+void *
+thr(void *arg)
+{
+	pid_t tid;
+
+	tid = syscall(SYS_gettid);
+	*x = tid;
+	while (*x == tid);
+	return NULL;
+}
+
+int
+main(int argc, char **argv)
+{
+	pthread_t th;
+	pid_t tid;
+	pid_t pid;
+	int st;
+	int rc;
+
+	x = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANONYMOUS,
+		 -1, 0);
+
+	if (x == (void *)-1) {
+		perror("mmap");
+		exit(1);
+	}
+	*x = 0;
+
+	rc = pthread_create(&th, NULL, thr, NULL);
+	if (rc) {
+		fprintf(stderr, "pthread_create: %d\n", rc);
+		exit(1);
+	}
+
+	while (*x == 0);
+	tid = *x;
+	fprintf(stderr, "pid=%d\n", getpid());
+	fprintf(stderr, "tid=%d\n", tid);
+
+	if ((pid = fork()) == 0) {
+		pid = getppid();
+		if (ptrace(PTRACE_ATTACH, tid, 0, 0) == -1) {
+			fprintf(stderr, "*** C771T037 ATTACH NG err=%d\n",
+				errno);
+			exit(1);
+		}
+		if (ptrace(PTRACE_ATTACH, pid, 0, 0) == -1) {
+			fprintf(stderr, "*** C771T037 ATTACH NG err=%d\n",
+				errno);
+			exit(1);
+		}
+
+		rc = wait4(pid, &st, WNOHANG, NULL);
+		if (rc == -1) {
+			fprintf(stderr, "*** C771T037 wait4(pid) NG err=%d\n",
+				errno);
+		}
+		else {
+			fprintf(stderr, "*** C771T037 wait4(pid) OK\n");
+		}
+
+		rc = wait4(tid, &st, WNOHANG, NULL);
+		if (rc == -1 && errno == ECHILD) {
+			fprintf(stderr, "*** C771T038 wait4(tid) OK\n");
+		}
+		else {
+			fprintf(stderr, "*** C771T038 wait4(tid) NG err=%d\n",
+				errno);
+		}
+
+		rc = wait4(pid, &st, WNOHANG|__WCLONE, NULL);
+		if (rc == -1 && errno == ECHILD) {
+			fprintf(stderr,
+				"*** C771T039 wait4(pid, __WCLONE) OK\n");
+		}
+		else {
+			fprintf(stderr,
+				"*** C771T039 wait4(pid, __WCLONE) NG err=%d\n",
+				errno);
+		}
+
+		rc = wait4(tid, &st, WNOHANG|__WCLONE, NULL);
+		if (rc == -1) {
+			fprintf(stderr,
+				"*** C771T040 wait4(tid, __WCLONE) NG err=%d\n",
+				errno);
+		}
+		else {
+			fprintf(stderr,
+				"*** C771T040 wait4(tid, __WCLONE) OK\n");
+		}
+
+		rc = wait4(pid, &st, WNOHANG|__WALL, NULL);
+		if (rc == -1) {
+			fprintf(stderr,
+				"*** C771T041 wait4(pid, __WALL) NG err=%d\n",
+				errno);
+		}
+		else {
+			fprintf(stderr,
+				"*** C771T041 wait4(pid, __WALL) OK\n");
+		}
+
+		rc = wait4(tid, &st, WNOHANG|__WALL, NULL);
+		if (rc == -1) {
+			fprintf(stderr,
+				"*** C771T042 wait4(tid, __WALL) NG err=%d\n",
+				errno);
+		}
+		else {
+			fprintf(stderr,
+				"*** C771T042 wait4(tid, __WALL) OK\n");
+		}
+
+		if (ptrace(PTRACE_DETACH, tid, NULL, NULL) == -1) {
+			fprintf(stderr, "*** C771T042 DETACH NG err=%d\n",
+				errno);
+			exit(1);
+		}
+		if (ptrace(PTRACE_DETACH, pid, NULL, NULL) == -1) {
+			fprintf(stderr, "*** C771T042 DETACH NG err=%d\n",
+				errno);
+			exit(1);
+		}
+		*x = 0;
+		exit(0);
+	}
+
+	while (*x == tid);
+	exit(0);
+}