Issue #149: tests: Add regression test for fork+exec of another binary

tests/CMakeLists.txt

@@ -102,6 +102,7 @@ add_executable(setpgid-kill setpgid-kill/setpgid-kill-main.cc ../src/utils.cc)
 add_executable(issue31 daemon/test-issue31.cc)
 add_executable(dlopen dlopen/dlopen.cc dlopen/dlopen-main.cc)
 add_executable(s short-file.c)
+add_executable(fork+exec fork/fork+exec.c)
 
 add_executable(pie pie.c)
 set_target_properties(pie PROPERTIES COMPILE_FLAGS "-g -fpie -fPIE")

tests/fork/fork+exec.c

@@ -0,0 +1,32 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/ptrace.h>
+#include <sys/user.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sched.h>
+
+int main(int argc, const char *argv[])
+{
+	pid_t child;
+	int status;
+
+	child = fork();
+	if (child < 0) {
+		fprintf(stderr, "fork failed!\n");
+		return -1;
+	}
+
+	if (child > 0) {
+		printf("Parent %d\n", getpid());
+	} else if (child < 0) {
+		printf("ERROR!\n");
+	} else {
+		printf("Child, will exec()\n");
+		execvp(argv[1], NULL);
+	}
+
+	waitpid(child, &status, 0);
+
+	return 0;
+}