add: testcases for refs #885, refs #1031

test/mng_mod/issues/885/CT_009.c

@@ -0,0 +1,87 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/mman.h>
+#include <semaphore.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/ptrace.h>
+#include <sys/wait.h>
+#include "./test_chk.h"
+
+#define TEST_NAME "CT_009"
+
+int main(int argc, char** argv)
+{
+	pid_t pid = 0;
+	sem_t *pwait = NULL;
+	sem_t *cwait = NULL;
+	void *mem, *attach;
+	int rc = 0;
+	int status;
+
+	printf("*** %s start *******************************\n", TEST_NAME);
+
+	pwait = (sem_t *)mmap(NULL, sizeof(sem_t), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	cwait = (sem_t *)mmap(NULL, sizeof(sem_t), PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+
+	CHKANDJUMP(!pwait || !cwait, "mmap for sem");
+
+	rc |= sem_init(pwait, 1, 0);
+	rc |= sem_init(cwait, 1, 0);
+
+	CHKANDJUMP(rc, "sem_init");
+
+	pid = fork();
+	CHKANDJUMP(pid == -1, "fork");
+
+	if (pid == 0) { /* child */
+		/* wake parent */
+		sem_post(pwait);
+
+		/* wait */
+		sem_wait(cwait);
+
+		/* wait */
+		sem_wait(cwait);
+
+		_exit(123);
+	} else { /* parent */
+		/* wait */
+		sem_wait(pwait);
+
+		/* attach child */
+		rc = ptrace(PTRACE_ATTACH, pid, NULL, NULL);
+		OKNG(rc != 0, "ptrace_attach");
+
+		/* wake child */
+		sem_post(cwait);
+
+		/* wait child stop */
+		rc = waitpid(pid, &status, 0);
+		CHKANDJUMP(rc == -1, "waitpid");
+
+		CHKANDJUMP(!WIFSTOPPED(status), "child is not stopped");
+
+		/* detach child */
+		rc = ptrace(PTRACE_DETACH, pid, NULL, NULL);
+		OKNG(rc != 0, "ptrace_detach");
+
+		/* detach child twice*/
+		rc = ptrace(PTRACE_DETACH, pid, NULL, NULL);
+		OKNG(rc == 0, "ptrace_detach faild [double detach]");
+
+		/* wake child */
+		sem_post(cwait);
+	}
+
+	printf("*** %s PASSED\n\n", TEST_NAME);
+	return 0;
+
+fn_fail:
+	printf("*** %s FAILED\n\n", TEST_NAME);
+
+	return -1;
+}