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auto merge of #4977 : z0w0/rust/endianattr, r=catamorphism

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```rust
#[cfg(target_endian = "little")]
fn something() { /* .. */ }

#[cfg(target_endian = "big")]
fn something() { /* .. */ }
```
This commit is contained in:
bors 2013-02-16 13:59:24 -08:00
commit 945ac428b8
1 changed files with 7 additions and 4 deletions
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11
src/librustc/driver/driver.rs
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@ -88,10 +88,12 @@ 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.
@ -99,6 +101,7 @@ pub fn default_configuration(sess: Session, +argv0: ~str, input: input) ->
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.