newlib: add test for waitpid (to implement)

qa/lib/newlib/020-waitpid.c

@@ -0,0 +1,43 @@
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+
+int
+main(int argc, char *argv[])
+{
+	pid_t cpid, w;
+	int status;
+
+
+	cpid = fork();
+	if(cpid == -1){
+		perror("fork");
+		exit(EXIT_FAILURE);
+	}
+
+	if (cpid == 0) {	/* Code executed by child */
+		printf("Child PID is %ld\n", (long) getpid());
+		_exit(10);
+	}
+	/* Code executed by parent */
+	do {
+		w = waitpid(cpid, &status, WUNTRACED);
+		if (w == -1) {
+			perror("waitpid");
+			exit(EXIT_FAILURE);
+		}
+
+		if (WIFEXITED(status)) {
+			printf("exited, status=%d\n", WEXITSTATUS(status));
+		} else if (WIFSIGNALED(status)) {
+			printf("killed by signal %d\n", WTERMSIG(status));
+			exit(EXIT_FAILURE);
+		} else if (WIFSTOPPED(status)) {
+			printf("stopped by signal %d\n", WSTOPSIG(status));
+			exit(EXIT_FAILURE);
+		}
+	} while (!WIFEXITED(status) && !WIFSIGNALED(status));
+	exit(EXIT_SUCCESS);
+
+}

qa/lib/newlib/build.json

@@ -32,6 +32,7 @@
 		"SourceFilesCmd": [
 			"000-hello.c",
 			"010-fork.c",
+			"020-waitpid.c",
 			"100-files.c",
 			"101-files.c",
 			"200-signals.c"