auto merge of #8433 : brson/rust/rm-more-oldrt-crud, r=brson

Just deleting more stuff.

Author: bors

mk/rt.mk

@@ -68,9 +68,7 @@ RUNTIME_CXXS_$(1)_$(2) := \
               rt/sync/rust_thread.cpp \
               rt/rust_builtin.cpp \
               rt/rust_run_program.cpp \
-              rt/rust_env.cpp \
               rt/rust_rng.cpp \
-              rt/rust_stack.cpp \
               rt/rust_upcall.cpp \
               rt/rust_uv.cpp \
               rt/rust_crate_map.cpp \

src/librustc/middle/lang_items.rs

@@ -57,28 +57,27 @@ pub enum LangItem {
 
     StrEqFnLangItem,                   // 19
     UniqStrEqFnLangItem,               // 20
-    AnnihilateFnLangItem,              // 21
-    LogTypeFnLangItem,                 // 22
-    FailFnLangItem,                    // 23
-    FailBoundsCheckFnLangItem,         // 24
-    ExchangeMallocFnLangItem,          // 25
-    ClosureExchangeMallocFnLangItem,   // 26
-    ExchangeFreeFnLangItem,            // 27
-    MallocFnLangItem,                  // 28
-    FreeFnLangItem,                    // 29
-    BorrowAsImmFnLangItem,             // 30
-    BorrowAsMutFnLangItem,             // 31
-    ReturnToMutFnLangItem,             // 32
-    CheckNotBorrowedFnLangItem,        // 33
-    StrDupUniqFnLangItem,              // 34
-    RecordBorrowFnLangItem,            // 35
-    UnrecordBorrowFnLangItem,          // 36
-
-    StartFnLangItem,                   // 37
-
-    TyDescStructLangItem,              // 38
-    TyVisitorTraitLangItem,            // 39
-    OpaqueStructLangItem,              // 40
+    LogTypeFnLangItem,                 // 21
+    FailFnLangItem,                    // 22
+    FailBoundsCheckFnLangItem,         // 23
+    ExchangeMallocFnLangItem,          // 24
+    ClosureExchangeMallocFnLangItem,   // 25
+    ExchangeFreeFnLangItem,            // 26
+    MallocFnLangItem,                  // 27
+    FreeFnLangItem,                    // 28
+    BorrowAsImmFnLangItem,             // 29
+    BorrowAsMutFnLangItem,             // 30
+    ReturnToMutFnLangItem,             // 31
+    CheckNotBorrowedFnLangItem,        // 32
+    StrDupUniqFnLangItem,              // 33
+    RecordBorrowFnLangItem,            // 34
+    UnrecordBorrowFnLangItem,          // 35
+
+    StartFnLangItem,                   // 36
+
+    TyDescStructLangItem,              // 37
+    TyVisitorTraitLangItem,            // 38
+    OpaqueStructLangItem,              // 39
 }
 
 pub struct LanguageItems {
@@ -122,28 +121,27 @@ impl LanguageItems {
 
             19 => "str_eq",
             20 => "uniq_str_eq",
-            21 => "annihilate",
-            22 => "log_type",
-            23 => "fail_",
-            24 => "fail_bounds_check",
-            25 => "exchange_malloc",
-            26 => "closure_exchange_malloc",
-            27 => "exchange_free",
-            28 => "malloc",
-            29 => "free",
-            30 => "borrow_as_imm",
-            31 => "borrow_as_mut",
-            32 => "return_to_mut",
-            33 => "check_not_borrowed",
-            34 => "strdup_uniq",
-            35 => "record_borrow",
-            36 => "unrecord_borrow",
-
-            37 => "start",
-
-            38 => "ty_desc",
-            39 => "ty_visitor",
-            40 => "opaque",
+            21 => "log_type",
+            22 => "fail_",
+            23 => "fail_bounds_check",
+            24 => "exchange_malloc",
+            25 => "closure_exchange_malloc",
+            26 => "exchange_free",
+            27 => "malloc",
+            28 => "free",
+            29 => "borrow_as_imm",
+            30 => "borrow_as_mut",
+            31 => "return_to_mut",
+            32 => "check_not_borrowed",
+            33 => "strdup_uniq",
+            34 => "record_borrow",
+            35 => "unrecord_borrow",
+
+            36 => "start",
+
+            37 => "ty_desc",
+            38 => "ty_visitor",
+            39 => "opaque",
 
             _ => "???"
         }
@@ -226,9 +224,6 @@ impl LanguageItems {
     pub fn uniq_str_eq_fn(&self) -> Option<def_id> {
         self.items[UniqStrEqFnLangItem as uint]
     }
-    pub fn annihilate_fn(&self) -> Option<def_id> {
-        self.items[AnnihilateFnLangItem as uint]
-    }
     pub fn log_type_fn(&self) -> Option<def_id> {
         self.items[LogTypeFnLangItem as uint]
     }
@@ -327,7 +322,6 @@ impl<'self> LanguageItemCollector<'self> {
 
         item_refs.insert(@"str_eq", StrEqFnLangItem as uint);
         item_refs.insert(@"uniq_str_eq", UniqStrEqFnLangItem as uint);
-        item_refs.insert(@"annihilate", AnnihilateFnLangItem as uint);
         item_refs.insert(@"log_type", LogTypeFnLangItem as uint);
         item_refs.insert(@"fail_", FailFnLangItem as uint);
         item_refs.insert(@"fail_bounds_check",

src/librustc/middle/trans/base.rs

@@ -2906,24 +2906,12 @@ pub fn fill_crate_map(ccx: @mut CrateContext, map: ValueRef) {
     }
     subcrates.push(C_int(ccx, 0));
 
-    let llannihilatefn = match ccx.tcx.lang_items.annihilate_fn() {
-        Some(annihilate_def_id) => {
-            if annihilate_def_id.crate == ast::LOCAL_CRATE {
-                get_item_val(ccx, annihilate_def_id.node)
-            } else {
-                let annihilate_fn_type = csearch::get_type(ccx.tcx,
-                                                           annihilate_def_id).ty;
-                trans_external_path(ccx, annihilate_def_id, annihilate_fn_type)
-            }
-        }
-        None => { C_null(Type::i8p()) }
-    };
-
     unsafe {
         let mod_map = create_module_map(ccx);
         llvm::LLVMSetInitializer(map, C_struct(
             [C_i32(1),
-             lib::llvm::llvm::LLVMConstPointerCast(llannihilatefn, Type::i8p().to_ref()),
+             // FIXME #8431 This used to be the annihilate function, now it's nothing
+             C_null(Type::i8p()),
              p2i(ccx, mod_map),
              C_array(ccx.int_type, subcrates)]));
     }

src/libstd/unstable/lang.rs

@@ -92,11 +92,6 @@ pub unsafe fn check_not_borrowed(a: *u8,
     borrowck::check_not_borrowed(a, file, line)
 }
 
-#[lang="annihilate"]
-pub unsafe fn annihilate() {
-    ::cleanup::annihilate()
-}
-
 #[lang="start"]
 pub fn start(main: *u8, argc: int, argv: **c_char,
              crate_map: *u8) -> int {

src/rt/boxed_region.cpp

@@ -11,7 +11,6 @@
 #include "memory_region.h"
 #include "boxed_region.h"
 #include "rust_globals.h"
-#include "rust_env.h"
 #include "rust_util.h"
 
 // #define DUMP_BOXED_REGION

src/rt/rust_builtin.cpp

@@ -571,7 +571,47 @@ rust_running_on_valgrind() {
     return RUNNING_ON_VALGRIND;
 }
 
-extern int get_num_cpus();
+#if defined(__WIN32__)
+int
+get_num_cpus() {
+    SYSTEM_INFO sysinfo;
+    GetSystemInfo(&sysinfo);
+
+    return (int) sysinfo.dwNumberOfProcessors;
+}
+#elif defined(__BSD__)
+int
+get_num_cpus() {
+    /* swiped from http://stackoverflow.com/questions/150355/
+       programmatically-find-the-number-of-cores-on-a-machine */
+
+    unsigned int numCPU;
+    int mib[4];
+    size_t len = sizeof(numCPU);
+
+    /* set the mib for hw.ncpu */
+    mib[0] = CTL_HW;
+    mib[1] = HW_AVAILCPU;  // alternatively, try HW_NCPU;
+
+    /* get the number of CPUs from the system */
+    sysctl(mib, 2, &numCPU, &len, NULL, 0);
+
+    if( numCPU < 1 ) {
+        mib[1] = HW_NCPU;
+        sysctl( mib, 2, &numCPU, &len, NULL, 0 );
+
+        if( numCPU < 1 ) {
+            numCPU = 1;
+        }
+    }
+    return numCPU;
+}
+#elif defined(__GNUC__)
+int
+get_num_cpus() {
+    return sysconf(_SC_NPROCESSORS_ONLN);
+}
+#endif
 
 extern "C" CDECL uintptr_t
 rust_get_num_cpus() {
@@ -629,6 +669,28 @@ rust_get_task() {
     return 0;
 }
 
+static lock_and_signal env_lock;
+
+extern "C" CDECL void
+rust_take_env_lock() {
+    env_lock.lock();
+}
+
+extern "C" CDECL void
+rust_drop_env_lock() {
+    env_lock.unlock();
+}
+
+extern "C" CDECL unsigned int
+rust_valgrind_stack_register(void *start, void *end) {
+  return VALGRIND_STACK_REGISTER(start, end);
+}
+
+extern "C" CDECL void
+rust_valgrind_stack_deregister(unsigned int id) {
+  VALGRIND_STACK_DEREGISTER(id);
+}
+
 //
 // Local Variables:
 // mode: C++