--- /dev/null
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+extern char **environ;
+
+#define S(...) (fprintf(stdout, __VA_ARGS__),fflush(stdout))
+#define FORKEXECWAIT(exec_call) do { \
+ int status;\
+ pid_t child = fork(); \
+ if (child == 0) {exec_call; perror ("exec failed");} \
+ else if (child == -1) perror ("cannot fork\n"); \
+ else if (child != wait (&status)) perror ("error waiting child"); \
+ else S("child exited\n"); \
+ } while (0)
+
+void test_allexec (char *exec)
+{
+ FORKEXECWAIT (execlp(exec, exec, NULL));
+ FORKEXECWAIT (execlp(exec, exec, "constant_arg1", "constant_arg2", NULL));
+ FORKEXECWAIT (execve(exec, NULL, environ));
+}
+
+
+/* If a single argument "exec" is given, will execute itself
+ (in bi-arch, a 32 bit and 64 bit variant) via various exec system calls.
+ Note that this test can only be run after the prerequisite have been
+ prepared by allexec_prepare_prereq, which will a.o. make links
+ for the allexec32 and allexec64 executables. On single arch build,
+ these links points to the same executable to ensure this test works
+ everywhere the same.
+ No arguments or more arguments means just print its args. */
+int main(int argc, char **argv, char **envp)
+{
+ if ( (argc == 2) && (strcmp (argv[1], "exec") == 0)) {
+ S("%s will exec ./allexec32\n", argv[0]);
+ test_allexec ("./allexec32");
+ S("%s will exec ./allexec64\n", argv[0]);
+ test_allexec ("./allexec64");
+ } else {
+ int i;
+ S("program exec-ed:");
+ for (i = 0; i < argc; i++) S(" %s", argv[i]);
+ S("\n");
+ }
+ return 0;
+}