Fix aarch64 test issues (same level to arm32)

Author: ejjeong

src/liblibc/lib.rs

@@ -4826,7 +4826,6 @@ pub mod funcs {
                                    mibp: *mut c_int,
                                    sizep: *mut size_t)
                                    -> c_int;
-            pub fn getdtablesize() -> c_int;
             pub fn madvise(addr: *mut c_void, len: size_t, advice: c_int)
                            -> c_int;
             pub fn mincore(addr: *mut c_void, len: size_t, vec: *mut c_uchar)
@@ -4841,7 +4840,6 @@ pub mod funcs {
         use types::os::arch::c95::{c_uchar, c_int, size_t};
 
         extern {
-            pub fn getdtablesize() -> c_int;
             pub fn ioctl(d: c_int, request: c_int, ...) -> c_int;
             pub fn madvise(addr: *mut c_void, len: size_t, advice: c_int)
                            -> c_int;

src/libstd/sys/unix/process.rs

@@ -64,7 +64,6 @@ impl Process {
               K: BytesContainer + Eq + Hash<Hasher>, V: BytesContainer
     {
         use libc::funcs::posix88::unistd::{fork, dup2, close, chdir, execvp};
-        use libc::funcs::bsd44::getdtablesize;
 
         mod rustrt {
             extern {
@@ -224,7 +223,8 @@ impl Process {
                 if !setup(err_fd, libc::STDERR_FILENO) { fail(&mut output) }
 
                 // close all other fds
-                for fd in range(3, getdtablesize()).rev() {
+                let open_max = libc::sysconf(libc::consts::os::sysconf::_SC_OPEN_MAX);
+                for fd in range(3, open_max as c_int).rev() {
                     if fd != output.fd() {
                         let _ = close(fd as c_int);
                     }

src/test/run-pass/intrinsic-alignment.rs

@@ -65,7 +65,7 @@ mod m {
 #[cfg(target_os = "android")]
 mod m {
     #[main]
-    #[cfg(target_arch = "arm")]
+    #[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
     pub fn main() {
         unsafe {
             assert_eq!(::rusti::pref_align_of::<u64>(), 8u);

src/test/run-pass/rec-align-u64.rs

@@ -71,7 +71,7 @@ mod m {
 
 #[cfg(target_os = "android")]
 mod m {
-    #[cfg(target_arch = "arm")]
+    #[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
     pub mod m {
         pub fn align() -> uint { 8u }
         pub fn size() -> uint { 16u }