Add target_endian crate cfg. Closes #4367

rust-lang · Feb 16, 2013 · 0e83102 · 0e83102 · bors · Feb 16, 2013
1 parent 9ad8a1f
commit 0e83102
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/src/librustc/driver/driver.rs b/src/librustc/driver/driver.rs
@@ -88,17 +88,20 @@ pub fn default_configuration(sess: Session, +argv0: ~str, input: input) ->
 
     let mk = attr::mk_name_value_item_str;
 
-    let (arch,wordsz) = match sess.targ_cfg.arch {
-      session::arch_x86 => (~"x86",~"32"),
-      session::arch_x86_64 => (~"x86_64",~"64"),
-      session::arch_arm => (~"arm",~"32")
+    // ARM is bi-endian, however using NDK seems to default
+    // to little-endian unless a flag is provided.
+    let (end,arch,wordsz) = match sess.targ_cfg.arch {
+      session::arch_x86 => (~"little",~"x86",~"32"),
+      session::arch_x86_64 => (~"little",~"x86_64",~"64"),
+      session::arch_arm => (~"little",~"arm",~"32")
     };
 
     return ~[ // Target bindings.
          attr::mk_word_item(str::from_slice(os::FAMILY)),
          mk(~"target_os", tos),
          mk(~"target_family", str::from_slice(os::FAMILY)),
          mk(~"target_arch", arch),
+         mk(~"target_endian", end),
          mk(~"target_word_size", wordsz),
          mk(~"target_libc", libc),
          // Build bindings.