From dfc81dfa90d16243f1f3ed556868d53107ee3227 Mon Sep 17 00:00:00 2001
From: Brian Anderson <banderson@mozilla.com>
Date: Fri, 27 Apr 2012 01:36:22 -0700
Subject: [PATCH] core: Add os::arch. Exposes target_arch string at runtime

---
 src/libcore/os.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/libcore/os.rs b/src/libcore/os.rs
index 9af5f1f6560f..12b51d43f98a 100644
--- a/src/libcore/os.rs
+++ b/src/libcore/os.rs
@@ -28,7 +28,7 @@ import consts::*;
 export close, fclose, fsync_fd, waitpid;
 export env, getenv, setenv, fdopen, pipe;
 export getcwd, dll_filename, self_exe_path;
-export exe_suffix, dll_suffix, sysname;
+export exe_suffix, dll_suffix, sysname, arch;
 export homedir, list_dir, list_dir_path, path_is_dir, path_exists,
        make_absolute, make_dir, remove_dir, change_dir, remove_file,
        copy_file;
@@ -700,8 +700,14 @@ mod consts {
     fn dll_suffix() -> str { ".dll" }
 }
 
+#[cfg(target_arch = "x86")]
+fn arch() -> str { "x86" }
 
+#[cfg(target_arch = "x86_64")]
+fn arch() -> str { "x86_64" }
 
+#[cfg(target_arch = "arm")]
+fn arch() -> str { "arm" }
 
 #[cfg(test)]
 mod tests {