cts: fix build for 64-bit

64-bit doesn't have an mmap2 syscall, call mmap directly.
Use PRIxPTR to print a uintptr_t.

Change-Id: Ib1b28d5d2938c2617fd4c5c5d68848f87cf6a183
diff --git a/tests/tests/security/jni/android_security_cts_NativeCodeTest.cpp b/tests/tests/security/jni/android_security_cts_NativeCodeTest.cpp
index e8ff57a..2f3fb79 100644
--- a/tests/tests/security/jni/android_security_cts_NativeCodeTest.cpp
+++ b/tests/tests/security/jni/android_security_cts_NativeCodeTest.cpp
@@ -33,6 +33,7 @@
 #include <cutils/log.h>
 #include <linux/perf_event.h>
 #include <errno.h>
+#include <inttypes.h>
 
 #define PASSED 0
 #define UNKNOWN_ERROR -1
@@ -201,7 +202,7 @@
             // We found an address which isn't in our our, or our child's,
             // address space, but yet which is still writable. Scribble
             // all over it.
-            ALOGE("parent: found writable at %x", addr);
+            ALOGE("parent: found writable at %" PRIxPTR, addr);
             uintptr_t addr2;
             for (addr2 = addr; addr2 < addr + SEARCH_SIZE; addr2++) {
                 syscall(__NR_ptrace, PTRACE_PEEKDATA, child, &secret, addr2);
@@ -243,7 +244,11 @@
 
 static void* mmap_syscall(void* addr, size_t len, int prot, int flags, int fd, off_t offset)
 {
+#ifdef __LP64__
+    return mmap(addr, len, prot, flags, fd, offset);
+#else
     return (void*) syscall(__NR_mmap2, addr, len, prot, flags, fd, offset);
+#endif
 }
 
 #define KBASE_REG_COOKIE_TB         2