librustc/libstd: No longer pass crate_map to start.

mk/platform.mk

@@ -343,6 +343,7 @@ CFG_PATH_MUNGE_mips-unknown-linux-gnu := true
 CFG_LDPATH_mips-unknown-linux-gnu :=
 CFG_RUN_mips-unknown-linux-gnu=
 CFG_RUN_TARG_mips-unknown-linux-gnu=
+RUSTC_FLAGS_mips-unknown-linux-gnu := --linker=$(CXX_mips-unknown-linux-gnu) --target-cpu mips32r2 --target-feature +mips32r2,+o32
 
 # i686-pc-mingw32 configuration
 CC_i686-pc-mingw32=$(CC)
@@ -480,7 +481,7 @@ define CFG_MAKE_TOOLCHAIN
         $$(CFG_GCCISH_DEF_FLAG_$(1))$$(3) $$(2)        \
         $$(call CFG_INSTALL_NAME_$(1),$$(4))
 
-  ifneq ($(HOST_$(1)),arm)
+  ifeq ($$(findstring $(HOST_$(1)),arm mips),)
 
   # We're using llvm-mc as our assembler because it supports
   # .cfi pseudo-ops on mac
@@ -492,7 +493,7 @@ define CFG_MAKE_TOOLCHAIN
                     -o=$$(1)
   else
 
-  # For the ARM crosses, use the toolchain assembler
+  # For the ARM and MIPS crosses, use the toolchain assembler
   # XXX: We should be able to use the LLVM assembler
   CFG_ASSEMBLE_$(1)=$$(CC_$(1)) $$(CFG_DEPEND_FLAGS) $$(2) -c -o $$(1)
 

src/librustc/middle/trans/base.rs

@@ -2442,11 +2442,6 @@ pub fn create_entry_wrapper(ccx: @mut CrateContext,
         unsafe {
             llvm::LLVMPositionBuilderAtEnd(bld, llbb);
 
-            let crate_map = ccx.crate_map;
-            let opaque_crate_map = do "crate_map".with_c_str |buf| {
-                llvm::LLVMBuildPointerCast(bld, crate_map, Type::i8p().to_ref(), buf)
-            };
-
             let (start_fn, args) = if use_start_lang_item {
                 let start_def_id = match ccx.tcx.lang_items.require(StartFnLangItem) {
                     Ok(id) => id,
@@ -2469,8 +2464,7 @@ pub fn create_entry_wrapper(ccx: @mut CrateContext,
                         C_null(Type::opaque_box(ccx).ptr_to()),
                         opaque_rust_main,
                         llvm::LLVMGetParam(llfn, 0),
-                        llvm::LLVMGetParam(llfn, 1),
-                        opaque_crate_map
+                        llvm::LLVMGetParam(llfn, 1)
                      ]
                 };
                 (start_fn, args)
@@ -2479,8 +2473,7 @@ pub fn create_entry_wrapper(ccx: @mut CrateContext,
                 let args = ~[
                     C_null(Type::opaque_box(ccx).ptr_to()),
                     llvm::LLVMGetParam(llfn, 0 as c_uint),
-                    llvm::LLVMGetParam(llfn, 1 as c_uint),
-                    opaque_crate_map
+                    llvm::LLVMGetParam(llfn, 1 as c_uint)
                 ];
 
                 (rust_main, args)
@@ -2661,13 +2654,16 @@ pub fn get_item_val(ccx: @mut CrateContext, id: ast::NodeId) -> ValueRef {
                         }
                         ast::foreign_item_static(*) => {
                             let ident = foreign::link_name(ccx, ni);
-                            let g = do ident.with_c_str |buf| {
-                                unsafe {
+                            unsafe {
+                                let g = do ident.with_c_str |buf| {
                                     let ty = type_of(ccx, ty);
                                     llvm::LLVMAddGlobal(ccx.llmod, ty.to_ref(), buf)
+                                };
+                                if attr::contains_name(ni.attrs, "weak_linkage") {
+                                    lib::llvm::SetLinkage(g, lib::llvm::ExternalWeakLinkage);
                                 }
-                            };
-                            g
+                                g
+                            }
                         }
                     }
                 }

src/librustc/middle/typeck/mod.rs

@@ -402,8 +402,7 @@ fn check_start_fn_ty(ccx: &CrateCtxt,
                     bound_lifetime_names: opt_vec::Empty,
                     inputs: ~[
                         ty::mk_int(),
-                        ty::mk_imm_ptr(tcx, ty::mk_imm_ptr(tcx, ty::mk_u8())),
-                        ty::mk_imm_ptr(tcx, ty::mk_u8())
+                        ty::mk_imm_ptr(tcx, ty::mk_imm_ptr(tcx, ty::mk_u8()))
                     ],
                     output: ty::mk_int()
                 }

src/libstd/libc.rs

@@ -294,7 +294,6 @@ pub mod types {
                 pub type ssize_t = i32;
             }
             #[cfg(target_arch = "x86")]
-            #[cfg(target_arch = "mips")]
             pub mod posix01 {
                 use libc::types::os::arch::c95::{c_short, c_long, time_t};
                 use libc::types::os::arch::posix88::{dev_t, gid_t, ino_t};
@@ -305,7 +304,6 @@ pub mod types {
                 pub type blksize_t = i32;
                 pub type blkcnt_t = i32;
 
-                #[cfg(target_arch = "x86")]
                 pub struct stat {
                     st_dev: dev_t,
                     __pad1: c_short,
@@ -328,30 +326,6 @@ pub mod types {
                     __unused4: c_long,
                     __unused5: c_long,
                 }
-
-                #[cfg(target_arch = "mips")]
-                pub struct stat {
-                    st_dev: c_ulong,
-                    st_pad1: [c_long, ..3],
-                    st_ino: ino_t,
-                    st_mode: mode_t,
-                    st_nlink: nlink_t,
-                    st_uid: uid_t,
-                    st_gid: gid_t,
-                    st_rdev: c_ulong,
-                    st_pad2: [c_long, ..2],
-                    st_size: off_t,
-                    st_pad3: c_long,
-                    st_atime: time_t,
-                    st_atime_nsec: c_long,
-                    st_mtime: time_t,
-                    st_mtime_nsec: c_long,
-                    st_ctime: time_t,
-                    st_ctime_nsec: c_long,
-                    st_blksize: blksize_t,
-                    st_blocks: blkcnt_t,
-                    st_pad5: [c_long, ..14],
-                }
             }
             #[cfg(target_arch = "arm")]
             pub mod posix01 {
@@ -385,6 +359,40 @@ pub mod types {
                     st_ino: c_ulonglong
                 }
             }
+            #[cfg(target_arch = "mips")]
+            pub mod posix01 {
+                use libc::types::os::arch::c95::{c_long, c_ulong, time_t};
+                use libc::types::os::arch::posix88::{gid_t, ino_t};
+                use libc::types::os::arch::posix88::{mode_t, off_t};
+                use libc::types::os::arch::posix88::{uid_t};
+
+                pub type nlink_t = u32;
+                pub type blksize_t = i32;
+                pub type blkcnt_t = i32;
+
+                pub struct stat {
+                    st_dev: c_ulong,
+                    st_pad1: [c_long, ..3],
+                    st_ino: ino_t,
+                    st_mode: mode_t,
+                    st_nlink: nlink_t,
+                    st_uid: uid_t,
+                    st_gid: gid_t,
+                    st_rdev: c_ulong,
+                    st_pad2: [c_long, ..2],
+                    st_size: off_t,
+                    st_pad3: c_long,
+                    st_atime: time_t,
+                    st_atime_nsec: c_long,
+                    st_mtime: time_t,
+                    st_mtime_nsec: c_long,
+                    st_ctime: time_t,
+                    st_ctime_nsec: c_long,
+                    st_blksize: blksize_t,
+                    st_blocks: blkcnt_t,
+                    st_pad5: [c_long, ..14],
+                }
+            }
             pub mod posix08 {}
             pub mod bsd44 {}
             pub mod extra {}
@@ -1633,6 +1641,111 @@ pub mod consts {
             pub static EPIPE : c_int = 32;
             pub static EDOM : c_int = 33;
             pub static ERANGE : c_int = 34;
+
+            pub static ENOMSG: c_int = 35;
+            pub static EIDRM: c_int = 36;
+            pub static ECHRNG: c_int = 37;
+            pub static EL2NSYNC: c_int = 38;
+            pub static EL3HLT: c_int = 39;
+            pub static EL3RST: c_int = 40;
+            pub static ELNRNG: c_int = 41;
+            pub static EUNATCH: c_int = 42;
+            pub static ENOCSI: c_int = 43;
+            pub static EL2HLT: c_int = 44;
+            pub static EDEADLK: c_int = 45;
+            pub static ENOLCK: c_int = 46;
+            pub static EBADE: c_int = 50;
+            pub static EBADR: c_int = 51;
+            pub static EXFULL: c_int = 52;
+            pub static ENOANO: c_int = 53;
+            pub static EBADRQC: c_int = 54;
+            pub static EBADSLT: c_int = 55;
+            pub static EDEADLOCK: c_int = 56;
+            pub static EBFONT: c_int = 59;
+            pub static ENOSTR: c_int = 60;
+            pub static ENODATA: c_int = 61;
+            pub static ETIME: c_int = 62;
+            pub static ENOSR: c_int = 63;
+            pub static ENONET: c_int = 64;
+            pub static ENOPKG: c_int = 65;
+            pub static EREMOTE: c_int = 66;
+            pub static ENOLINK: c_int = 67;
+            pub static EADV: c_int = 68;
+            pub static ESRMNT: c_int = 69;
+            pub static ECOMM: c_int = 70;
+            pub static EPROTO: c_int = 71;
+            pub static EDOTDOT: c_int = 73;
+            pub static EMULTIHOP: c_int = 74;
+            pub static EBADMSG: c_int = 77;
+            pub static ENAMETOOLONG: c_int = 78;
+            pub static EOVERFLOW: c_int = 79;
+            pub static ENOTUNIQ: c_int = 80;
+            pub static EBADFD: c_int = 81;
+            pub static EREMCHG: c_int = 82;
+            pub static ELIBACC: c_int = 83;
+            pub static ELIBBAD: c_int = 84;
+            pub static ELIBSCN: c_int = 95;
+            pub static ELIBMAX: c_int = 86;
+            pub static ELIBEXEC: c_int = 87;
+            pub static EILSEQ: c_int = 88;
+            pub static ENOSYS: c_int = 89;
+            pub static ELOOP: c_int = 90;
+            pub static ERESTART: c_int = 91;
+            pub static ESTRPIPE: c_int = 92;
+            pub static ENOTEMPTY: c_int = 93;
+            pub static EUSERS: c_int = 94;
+            pub static ENOTSOCK: c_int = 95;
+            pub static EDESTADDRREQ: c_int = 96;
+            pub static EMSGSIZE: c_int = 97;
+            pub static EPROTOTYPE: c_int = 98;
+            pub static ENOPROTOOPT: c_int = 99;
+            pub static EPROTONOSUPPORT: c_int = 120;
+            pub static ESOCKTNOSUPPORT: c_int = 121;
+            pub static EOPNOTSUPP: c_int = 122;
+            pub static EPFNOSUPPORT: c_int = 123;
+            pub static EAFNOSUPPORT: c_int = 124;
+            pub static EADDRINUSE: c_int = 125;
+            pub static EADDRNOTAVAIL: c_int = 126;
+            pub static ENETDOWN: c_int = 127;
+            pub static ENETUNREACH: c_int = 128;
+            pub static ENETRESET: c_int = 129;
+            pub static ECONNABORTED: c_int = 130;
+            pub static ECONNRESET: c_int = 131;
+            pub static ENOBUFS: c_int = 132;
+            pub static EISCONN: c_int = 133;
+            pub static ENOTCONN: c_int = 134;
+            pub static EUCLEAN: c_int = 135;
+            pub static ENOTNAM: c_int = 137;
+            pub static ENAVAIL: c_int = 138;
+            pub static EISNAM: c_int = 139;
+            pub static EREMOTEIO: c_int = 140;
+            pub static ESHUTDOWN: c_int = 143;
+            pub static ETOOMANYREFS: c_int = 144;
+            pub static ETIMEDOUT: c_int = 145;
+            pub static ECONNREFUSED: c_int = 146;
+            pub static EHOSTDOWN: c_int = 147;
+            pub static EHOSTUNREACH: c_int = 148;
+            pub static EWOULDBLOCK: c_int = EAGAIN;
+            pub static EALREADY: c_int = 149;
+            pub static EINPROGRESS: c_int = 150;
+            pub static ESTALE: c_int = 151;
+            pub static ECANCELED: c_int = 158;
+
+            pub static ENOMEDIUM: c_int = 159;
+            pub static EMEDIUMTYPE: c_int = 160;
+            pub static ENOKEY: c_int = 161;
+            pub static EKEYEXPIRED: c_int = 162;
+            pub static EKEYREVOKED: c_int = 163;
+            pub static EKEYREJECTED: c_int = 164;
+
+            pub static EOWNERDEAD: c_int = 165;
+            pub static ENOTRECOVERABLE: c_int = 166;
+
+            pub static ERFKILL: c_int = 167;
+
+            pub static EHWPOISON: c_int = 168;
+
+            pub static EDQUOT: c_int = 1133;
         }
         pub mod posix01 {
             use libc::types::os::arch::c95::c_int;

src/libstd/os.rs

@@ -1647,7 +1647,7 @@ pub mod consts {
     pub use os::consts::arm::*;
 
     #[cfg(target_arch = "mips")]
-    use os::consts::mips::*;
+    pub use os::consts::mips::*;
 
     pub mod unix {
         pub static FAMILY: &'static str = "unix";

src/libstd/rt/crate_map.rs

@@ -16,7 +16,14 @@ use vec;
 use hashmap::HashSet;
 use container::MutableSet;
 
-pub struct ModEntry{
+extern {
+    #[cfg(not(stage0))]
+    #[weak_linkage]
+    #[link_name = "_rust_crate_map_toplevel"]
+    static CRATE_MAP: CrateMap;
+}
+
+pub struct ModEntry {
     name: *c_char,
     log_level: *mut u32
 }
@@ -34,6 +41,11 @@ struct CrateMap {
     children: [*CrateMap, ..1]
 }
 
+#[cfg(not(stage0))]
+pub fn get_crate_map() -> *CrateMap {
+    &'static CRATE_MAP as *CrateMap
+}
+
 unsafe fn version(crate_map: *CrateMap) -> i32 {
     match (*crate_map).version {
         1 => return 1,

src/libstd/rt/logging.rs

@@ -12,6 +12,7 @@ use libc::{uintptr_t, exit, STDERR_FILENO};
 use option::{Some, None, Option};
 use rt::util::dumb_println;
 use rt::crate_map::{ModEntry, iter_crate_map};
+#[cfg(not(stage0))] use rt::crate_map::get_crate_map;
 use str::StrSlice;
 use str::raw::from_c_str;
 use u32;
@@ -211,6 +212,7 @@ impl Logger for StdErrLogger {
 /// Configure logging by traversing the crate map and setting the
 /// per-module global logging flags based on the logging spec
 #[fixed_stack_segment] #[inline(never)]
+#[cfg(stage0)]
 pub fn init(crate_map: *u8) {
     use os;
 
@@ -224,6 +226,22 @@ pub fn init(crate_map: *u8) {
         }
     }
 }
+#[cfg(not(stage0))]
+pub fn init() {
+    use os;
+
+    let crate_map = get_crate_map() as *u8;
+
+    let log_spec = os::getenv("RUST_LOG");
+    match log_spec {
+        Some(spec) => {
+            update_log_settings(crate_map, spec);
+        }
+        None => {
+            update_log_settings(crate_map, ~"");
+        }
+    }
+}
 
 #[fixed_stack_segment] #[inline(never)]
 pub fn console_on() { unsafe { rust_log_console_on() } }