sparc64-linux support

mk/cfg/sparc64-unknown-linux-gnu.mk

@@ -0,0 +1 @@
+# rustbuild-only target

src/liballoc_jemalloc/build.rs

@@ -151,6 +151,12 @@ fn main() {
     cmd.arg(format!("--host={}", build_helper::gnu_target(&target)));
     cmd.arg(format!("--build={}", build_helper::gnu_target(&host)));
 
+    // for some reason, jemalloc configure doesn't detect this value
+    // automatically for this target
+    if target == "sparc64-unknown-linux-gnu" {
+        cmd.arg("--with-lg-quantum=4");
+    }
+
     run(&mut cmd);
     let mut make = Command::new(build_helper::make(&host));
     make.current_dir(&build_dir)

src/liblibc

@@ -1 +1 @@
-Subproject commit e49e9bb7c3d9c7f2fd893f0ee0db81617b8db21f
+Subproject commit 98589876259e19f13eab81b033ced95bbb6deca0

src/librustc_back/target/mod.rs

@@ -157,6 +157,8 @@ fn $module() {
     ("mips-unknown-linux-uclibc", mips_unknown_linux_uclibc),
     ("mipsel-unknown-linux-uclibc", mipsel_unknown_linux_uclibc),
 
+    ("sparc64-unknown-linux-gnu", sparc64_unknown_linux_gnu),
+
     ("i686-linux-android", i686_linux_android),
     ("arm-linux-androideabi", arm_linux_androideabi),
     ("armv7-linux-androideabi", armv7_linux_androideabi),

src/librustc_back/target/sparc64_unknown_linux_gnu.rs

@@ -0,0 +1,30 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use target::{Target, TargetResult};
+
+pub fn target() -> TargetResult {
+    let mut base = super::linux_base::opts();
+    base.cpu = "v9".to_string();
+    base.max_atomic_width = Some(64);
+    base.exe_allocation_crate = "alloc_system".to_string();
+
+    Ok(Target {
+        llvm_target: "sparc64-unknown-linux-gnu".to_string(),
+        target_endian: "big".to_string(),
+        target_pointer_width: "64".to_string(),
+        data_layout: "E-m:e-i64:64-n32:64-S128".to_string(),
+        arch: "sparc64".to_string(),
+        target_os: "linux".to_string(),
+        target_env: "gnu".to_string(),
+        target_vendor: "unknown".to_string(),
+        options: base,
+    })
+}

src/libstd/os/linux/raw.rs

@@ -157,12 +157,9 @@ pub struct stat {
     }
 }
 
-#[cfg(target_arch = "mips64")]
-mod arch {
-    pub use libc::{off_t, ino_t, nlink_t, blksize_t, blkcnt_t, stat, time_t};
-}
-
-#[cfg(target_arch = "s390x")]
+#[cfg(any(target_arch = "mips64",
+          target_arch = "s390x",
+          target_arch = "sparc64"))]
 mod arch {
     pub use libc::{off_t, ino_t, nlink_t, blksize_t, blkcnt_t, stat, time_t};
 }