Added Mipsel architecture support

Author: Pawel Olzacki

mk/platform.mk

@@ -374,6 +374,36 @@ CFG_RUN_TARG_arm-unknown-linux-gnueabi=$(call CFG_RUN_arm-unknown-linux-gnueabi,
 RUSTC_FLAGS_arm-unknown-linux-gnueabi :=
 RUSTC_CROSS_FLAGS_arm-unknown-linux-gnueabi :=
 
+# mipsel-linux configuration
+CC_mipsel-linux=mipsel-linux-gcc
+CXX_mipsel-linux=mipsel-linux-g++
+CPP_mipsel-linux=mipsel-linux-gcc 
+AR_mipsel-linux=mipsel-linux-ar
+CFG_LIB_NAME_mipsel-linux=lib$(1).so
+CFG_STATIC_LIB_NAME_mipsel-linux=lib$(1).a
+CFG_LIB_GLOB_mipsel-linux=lib$(1)-*.so
+CFG_LIB_DSYM_GLOB_mipsel-linux=lib$(1)-*.dylib.dSYM
+CFG_CFLAGS_mipsel-linux := -mips32 -mabi=32 $(CFLAGS)
+CFG_GCCISH_CFLAGS_mipsel-linux := -Wall -g -fPIC -mips32 -mabi=32 $(CFLAGS)
+CFG_GCCISH_CXXFLAGS_mipsel-linux := -fno-rtti $(CXXFLAGS)
+CFG_GCCISH_LINK_FLAGS_mipsel-linux := -shared -fPIC -g -mips32
+CFG_GCCISH_DEF_FLAG_mipsel-linux := -Wl,--export-dynamic,--dynamic-list=
+CFG_GCCISH_PRE_LIB_FLAGS_mipsel-linux := -Wl,-whole-archive
+CFG_GCCISH_POST_LIB_FLAGS_mipsel-linux := -Wl,-no-whole-archive
+CFG_DEF_SUFFIX_mipsel-linux := .linux.def
+CFG_LLC_FLAGS_mipsel-linux :=
+CFG_INSTALL_NAME_mipsel-linux =
+CFG_LIBUV_LINK_FLAGS_mipsel-linux =
+CFG_EXE_SUFFIX_mipsel-linux :=
+CFG_WINDOWSY_mipsel-linux :=
+CFG_UNIXY_mipsel-linux := 1
+CFG_PATH_MUNGE_mipsel-linux := true
+CFG_LDPATH_mipsel-linux :=
+CFG_RUN_mipsel-linux=
+CFG_RUN_TARG_mipsel-linux=
+RUSTC_FLAGS_mipsel-linux := -C target-cpu=mips32 -C target-feature="+mips32,+o32"
+
+
 # mips-unknown-linux-gnu configuration
 CC_mips-unknown-linux-gnu=mips-linux-gnu-gcc
 CXX_mips-unknown-linux-gnu=mips-linux-gnu-g++
@@ -612,7 +642,7 @@ define CFG_MAKE_TOOLCHAIN
         $$(CFG_GCCISH_DEF_FLAG_$(1))$$(3) $$(2)        \
         $$(call CFG_INSTALL_NAME_$(1),$$(4))
 
-  ifeq ($$(findstring $(HOST_$(1)),arm mips),)
+  ifeq ($$(findstring $(HOST_$(1)),arm mips mipsel),)
 
   # We're using llvm-mc as our assembler because it supports
   # .cfi pseudo-ops on mac

src/libcore/mem.rs

@@ -470,6 +470,7 @@ mod tests {
     #[cfg(target_arch = "x86")]
     #[cfg(target_arch = "arm")]
     #[cfg(target_arch = "mips")]
+    #[cfg(target_arch = "mipsel")]
     fn size_of_32() {
         assert_eq!(size_of::<uint>(), 4u);
         assert_eq!(size_of::<*uint>(), 4u);
@@ -501,6 +502,7 @@ mod tests {
     #[cfg(target_arch = "x86")]
     #[cfg(target_arch = "arm")]
     #[cfg(target_arch = "mips")]
+    #[cfg(target_arch = "mipsel")]
     fn align_of_32() {
         assert_eq!(align_of::<uint>(), 4u);
         assert_eq!(align_of::<*uint>(), 4u);

src/libgreen/context.rs

@@ -268,12 +268,15 @@ fn initialize_call_frame(regs: &mut Registers, fptr: InitFn, arg: uint,
 }
 
 #[cfg(target_arch = "mips")]
+#[cfg(target_arch = "mipsel")]
 type Registers = [uint, ..32];
 
 #[cfg(target_arch = "mips")]
+#[cfg(target_arch = "mipsel")]
 fn new_regs() -> Box<Registers> { box {[0, .. 32]} }
 
 #[cfg(target_arch = "mips")]
+#[cfg(target_arch = "mipsel")]
 fn initialize_call_frame(regs: &mut Registers, fptr: InitFn, arg: uint,
                          procedure: raw::Procedure, sp: *mut uint) {
     let sp = align_down(sp);

src/liblibc/lib.rs

@@ -463,6 +463,7 @@ pub mod types {
         #[cfg(target_arch = "x86")]
         #[cfg(target_arch = "arm")]
         #[cfg(target_arch = "mips")]
+        #[cfg(target_arch = "mipsel")]
         pub mod arch {
             pub mod c95 {
                 pub type c_char = i8;
@@ -491,6 +492,7 @@ pub mod types {
             }
             #[cfg(target_arch = "x86")]
             #[cfg(target_arch = "mips")]
+            #[cfg(target_arch = "mipsel")]
             pub mod posix88 {
                 pub type off_t = i32;
                 pub type dev_t = u64;
@@ -599,6 +601,7 @@ pub mod types {
                 }
             }
             #[cfg(target_arch = "mips")]
+            #[cfg(target_arch = "mipsel")]
             pub mod posix01 {
                 use types::os::arch::c95::{c_long, c_ulong, time_t};
                 use types::os::arch::posix88::{gid_t, ino_t};
@@ -2209,6 +2212,7 @@ pub mod consts {
         }
 
         #[cfg(target_arch = "mips")]
+        #[cfg(target_arch = "mipsel")]
         pub mod posix88 {
             use types::os::arch::c95::c_int;
             use types::common::c95::c_void;
@@ -2483,6 +2487,7 @@ pub mod consts {
             pub static PTHREAD_STACK_MIN: size_t = 16384;
 
             #[cfg(target_arch = "mips", target_os = "linux")]
+            #[cfg(target_arch = "mipsel", target_os = "linux")]
             pub static PTHREAD_STACK_MIN: size_t = 131072;
 
             pub static CLOCK_REALTIME: c_int = 0;
@@ -2536,6 +2541,7 @@ pub mod consts {
             pub static SHUT_RDWR: c_int = 2;
         }
         #[cfg(target_arch = "mips")]
+        #[cfg(target_arch = "mipsel")]
         pub mod bsd44 {
             use types::os::arch::c95::c_int;
 
@@ -2604,6 +2610,7 @@ pub mod consts {
             pub static MAP_STACK : c_int = 0x020000;
         }
         #[cfg(target_arch = "mips")]
+        #[cfg(target_arch = "mipsel")]
         pub mod extra {
             use types::os::arch::c95::c_int;
 
@@ -2976,6 +2983,7 @@ pub mod consts {
             pub static PTHREAD_STACK_MIN: size_t = 4096;
 
             #[cfg(target_arch = "mips")]
+            #[cfg(target_arch = "mipsel")]
             #[cfg(target_arch = "x86")]
             #[cfg(target_arch = "x86_64")]
             pub static PTHREAD_STACK_MIN: size_t = 2048;

src/libnative/io/c_unix.rs

@@ -23,20 +23,26 @@ use libc;
 #[cfg(target_os = "ios")]
 #[cfg(target_os = "freebsd")]
 pub static FIONBIO: libc::c_ulong = 0x8004667e;
-#[cfg(target_os = "linux", not(target_arch = "mips"))]
+#[cfg(target_os = "linux", target_arch = "x86")]
+#[cfg(target_os = "linux", target_arch = "x86_64")]
+#[cfg(target_os = "linux", target_arch = "arm")]
 #[cfg(target_os = "android")]
 pub static FIONBIO: libc::c_ulong = 0x5421;
 #[cfg(target_os = "linux", target_arch = "mips")]
+#[cfg(target_os = "linux", target_arch = "mipsel")]
 pub static FIONBIO: libc::c_ulong = 0x667e;
 
 #[cfg(target_os = "macos")]
 #[cfg(target_os = "ios")]
 #[cfg(target_os = "freebsd")]
 pub static FIOCLEX: libc::c_ulong = 0x20006601;
-#[cfg(target_os = "linux", not(target_arch = "mips"))]
+#[cfg(target_os = "linux", target_arch = "x86")]
+#[cfg(target_os = "linux", target_arch = "x86_64")]
+#[cfg(target_os = "linux", target_arch = "arm")]
 #[cfg(target_os = "android")]
 pub static FIOCLEX: libc::c_ulong = 0x5451;
 #[cfg(target_os = "linux", target_arch = "mips")]
+#[cfg(target_os = "linux", target_arch = "mipsel")]
 pub static FIOCLEX: libc::c_ulong = 0x6601;
 
 #[cfg(target_os = "macos")]
@@ -109,7 +115,9 @@ mod select {
     }
 }
 
-#[cfg(target_os = "linux", not(target_arch = "mips"))]
+#[cfg(target_os = "linux", target_arch = "x86")]
+#[cfg(target_os = "linux", target_arch = "x86_64")]
+#[cfg(target_os = "linux", target_arch = "arm")]
 #[cfg(target_os = "android")]
 mod signal {
     use libc;
@@ -153,6 +161,7 @@ mod signal {
 }
 
 #[cfg(target_os = "linux", target_arch = "mips")]
+#[cfg(target_os = "linux", target_arch = "mipsel")]
 mod signal {
     use libc;
 

src/librustc/back/mipsel.rs

@@ -0,0 +1,72 @@
+// Copyright 2012 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 back::target_strs;
+use syntax::abi;
+
+pub fn get_target_strs(target_triple: String, target_os: abi::Os) -> target_strs::t {
+    return target_strs::t {
+        module_asm: "".to_string(),
+
+        data_layout: match target_os {
+          abi::OsMacos => {
+            "e-p:32:32:32\
+                -i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64\
+                -f32:32:32-f64:64:64\
+                -v64:64:64-v128:64:128\
+                -a0:0:64-n32".to_string()
+          }
+
+          abi::OsiOS => {
+            "e-p:32:32:32\
+                -i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64\
+                -f32:32:32-f64:64:64\
+                -v64:64:64-v128:64:128\
+                -a0:0:64-n32".to_string()
+          }
+
+          abi::OsWin32 => {
+            "e-p:32:32:32\
+                -i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64\
+                -f32:32:32-f64:64:64\
+                -v64:64:64-v128:64:128\
+                -a0:0:64-n32".to_string()
+          }
+
+          abi::OsLinux => {
+            "e-p:32:32:32\
+                -i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64\
+                -f32:32:32-f64:64:64\
+                -v64:64:64-v128:64:128\
+                -a0:0:64-n32".to_string()
+          }
+
+          abi::OsAndroid => {
+            "e-p:32:32:32\
+                -i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64\
+                -f32:32:32-f64:64:64\
+                -v64:64:64-v128:64:128\
+                -a0:0:64-n32".to_string()
+          }
+
+          abi::OsFreebsd => {
+            "e-p:32:32:32\
+                -i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64\
+                -f32:32:32-f64:64:64\
+                -v64:64:64-v128:64:128\
+                -a0:0:64-n32".to_string()
+          }
+        },
+
+        target_triple: target_triple,
+
+        cc_args: Vec::new(),
+    };
+}

src/librustc/driver/config.rs

@@ -18,7 +18,7 @@ use driver::session::Session;
 use back;
 use back::link;
 use back::target_strs;
-use back::{arm, x86, x86_64, mips};
+use back::{arm, x86, x86_64, mips, mipsel};
 use middle::lint;
 
 use syntax::abi;
@@ -373,7 +373,8 @@ pub fn default_configuration(sess: &Session) -> ast::CrateConfig {
         abi::X86 =>    ("little", "x86",    "32"),
         abi::X86_64 => ("little", "x86_64", "64"),
         abi::Arm =>    ("little", "arm",    "32"),
-        abi::Mips =>   ("big",    "mips",   "32")
+        abi::Mips =>   ("big",    "mips",   "32"),
+        abi::Mipsel => ("little", "mipsel", "32")
     };
 
     let fam = match sess.targ_cfg.os {
@@ -452,6 +453,7 @@ static architecture_abis : &'static [(&'static str, abi::Architecture)] = &'stat
     ("xscale", abi::Arm),
     ("thumb",  abi::Arm),
 
+    ("mipsel", abi::Mipsel),
     ("mips",   abi::Mips)];
 
 pub fn build_target_config(sopts: &Options) -> Config {
@@ -470,14 +472,16 @@ pub fn build_target_config(sopts: &Options) -> Config {
       abi::X86 => (ast::TyI32, ast::TyU32),
       abi::X86_64 => (ast::TyI64, ast::TyU64),
       abi::Arm => (ast::TyI32, ast::TyU32),
-      abi::Mips => (ast::TyI32, ast::TyU32)
+      abi::Mips => (ast::TyI32, ast::TyU32),
+      abi::Mipsel => (ast::TyI32, ast::TyU32)
     };
     let target_triple = sopts.target_triple.clone();
     let target_strs = match arch {
       abi::X86 => x86::get_target_strs(target_triple, os),
       abi::X86_64 => x86_64::get_target_strs(target_triple, os),
       abi::Arm => arm::get_target_strs(target_triple, os),
-      abi::Mips => mips::get_target_strs(target_triple, os)
+      abi::Mips => mips::get_target_strs(target_triple, os),
+      abi::Mipsel => mipsel::get_target_strs(target_triple, os)
     };
     Config {
         os: os,

src/librustc/lib.rs

@@ -97,6 +97,7 @@ pub mod back {
     pub mod link;
     pub mod lto;
     pub mod mips;
+    pub mod mipsel;
     pub mod rpath;
     pub mod svh;
     pub mod target_strs;

src/librustc/middle/trans/adt.rs

@@ -60,7 +60,7 @@ use middle::trans::type_::Type;
 use middle::trans::type_of;
 use middle::ty;
 use middle::ty::Disr;
-use syntax::abi::{X86, X86_64, Arm, Mips};
+use syntax::abi::{X86, X86_64, Arm, Mips, Mipsel};
 use syntax::ast;
 use syntax::attr;
 use syntax::attr::IntType;
@@ -367,6 +367,7 @@ fn range_to_inttype(cx: &CrateContext, hint: Hint, bounds: &IntBounds) -> IntTyp
                 // corresponding to `choose_shortest`.  However, we don't run on those yet...?
                 Arm => at_least_32,
                 Mips => at_least_32,
+                Mipsel => at_least_32,
             }
         }
         attr::ReprAny => {

src/librustc/middle/trans/asm.rs

@@ -135,6 +135,7 @@ pub fn trans_inline_asm<'a>(bcx: &'a Block<'a>, ia: &ast::InlineAsm)
 
 #[cfg(target_arch = "arm")]
 #[cfg(target_arch = "mips")]
+#[cfg(target_arch = "mipsel")]
 fn get_clobbers() -> String {
     "".to_string()
 }