Haiku: Adjust haiku target to match new librustc_back design

Author: kallisti5

src/librustc_back/target/haiku_base.rs

@@ -0,0 +1,23 @@
+// Copyright 2014-2015 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::TargetOptions;
+use std::default::Default;
+
+pub fn opts() -> TargetOptions {
+    TargetOptions {
+        linker: "cc".to_string(),
+        dynamic_linking: true,
+        executables: true,
+        has_rpath: true,
+        linker_is_gnu: true,
+        .. Default::default()
+    }
+}

src/librustc_back/target/i686_unknown_haiku.rs

@@ -8,12 +8,15 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use target::Target;
-use target::TargetOptions;
-use std::default::Default;
+use target::{Target, TargetResult};
 
-pub fn target() -> Target {
-    Target {
+pub fn target() -> TargetResult {
+    let mut base = super::haiku_base::opts();
+    base.cpu = "pentium4".to_string();
+    base.max_atomic_width = 64;
+    base.pre_link_args.push("-m32".to_string());
+
+    Ok(Target {
         llvm_target: "i686-unknown-haiku".to_string(),
         target_endian: "little".to_string(),
         target_pointer_width: "32".to_string(),
@@ -22,12 +25,6 @@ pub fn target() -> Target {
         target_os: "haiku".to_string(),
         target_env: "".to_string(),
         target_vendor: "unknown".to_string(),
-        options: TargetOptions {
-            linker: "cc".to_string(),
-            dynamic_linking: true,
-            executables: true,
-            has_rpath: true,
-            .. Default::default()
-        },
-    }
+        options: base,
+    })
 }

src/librustc_back/target/mod.rs

@@ -56,6 +56,7 @@ mod apple_ios_base;
 mod bitrig_base;
 mod dragonfly_base;
 mod freebsd_base;
+mod haiku_base;
 mod linux_base;
 mod linux_musl_base;
 mod openbsd_base;

src/librustc_back/target/x86_64_unknown_haiku.rs

@@ -8,12 +8,15 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use target::Target;
-use target::TargetOptions;
-use std::default::Default;
+use target::{Target, TargetResult};
 
-pub fn target() -> Target {
-    Target {
+pub fn target() -> TargetResult {
+    let mut base = super::haiku_base::opts();
+    base.cpu = "x86-64".to_string();
+    base.max_atomic_width = 64;
+    base.pre_link_args.push("-m64".to_string());
+
+    Ok(Target {
         llvm_target: "x86_64-unknown-haiku".to_string(),
         target_endian: "little".to_string(),
         target_pointer_width: "64".to_string(),
@@ -22,12 +25,6 @@ pub fn target() -> Target {
         target_os: "haiku".to_string(),
         target_env: "".to_string(),
         target_vendor: "unknown".to_string(),
-        options: TargetOptions {
-            linker: "cc".to_string(),
-            dynamic_linking: true,
-            executables: true,
-            has_rpath: true,
-            .. Default::default()
-        },
-    }
+        options: base,
+    })
 }