Fix duplicate word in core docs

.gitignore

@@ -73,6 +73,7 @@ src/.DS_Store
 /doc/html
 /doc/latex
 /doc/std
+/doc/extra
 /nd/
 /llvm/
 version.md
@@ -81,7 +82,6 @@ keywords.md
 x86_64-apple-darwin/
 x86_64-unknown-linux-gnu/
 i686-unknown-linux-gnu/
-doc/core/
 tmp.*.rs
 config.stamp
 .DS_Store

.mailmap

@@ -0,0 +1,12 @@
+#
+# This list is used by git-shortlog to aggregate contributions.  It is
+# necessary when either the author's full name is not always written
+# the same way, and/or the same author contributes from different
+# email addresses.
+#
+
+Elly Jones <elly@leptoquark.net>
+ILyoan <ilyoan@gmail.com>
+Junyoung Cho <june0.cho@samsung.com>
+Matthijs Hofstra <thiezz@gmail.com>
+Rob Arnold <robarnold@cs.cmu.edu>

CONTRIBUTING.md

@@ -1,27 +1,42 @@
 ## Pull request procedure
 
-Pull requests should be targeted at Rust's `incoming` branch (note that by default Github will aim them at the `master` branch) --
-see "Changing The Commit Range and Destination Repository" in Github's documentation on [pull requests](https://help.github.com/articles/using-pull-requests).
-Before pushing to your Github repo and issuing the pull request, please do two things:
+Pull requests should be targeted at Rust's `incoming` branch (note
+that by default Github will aim them at the `master` branch) -- see
+"Changing The Commit Range and Destination Repository" in Github's
+documentation on [pull
+requests](https://help.github.com/articles/using-pull-requests).
+Before pushing to your Github repo and issuing the pull request,
+please do two things:
 
-1. [Rebase](http://git-scm.com/book/en/Git-Branching-Rebasing) your local changes against the `incoming` branch. Resolve any conflicts that arise.
-2. Run the full Rust test suite with the `make check` command.
-You're not off the hook even if you just stick to documentation; code examples in the docs are tested as well!
+1. [Rebase](http://git-scm.com/book/en/Git-Branching-Rebasing) your
+   local changes against the `incoming` branch. Resolve any conflicts
+   that arise.
 
-Pull requests will be treated as "review requests",
-and we will give feedback we expect to see corrected on [style](https://github.com/mozilla/rust/wiki/Note-style-guide) and substance before pulling.
-Changes contributed via pull request should focus on a single issue at a time, like any other.
-We will not accept pull-requests that try to "sneak" unrelated changes in.
+2. Run the full Rust test suite with the `make check` command.  You're
+   not off the hook even if you just stick to documentation; code
+   examples in the docs are tested as well!
 
-Normally, all pull requests must include regression tests (see [Note-testsuite](https://github.com/mozilla/rust/wiki/Note-testsuite)) that test your change.
-Occasionally, a change will be very difficult to test for.
-In those cases, please include a note in your commit message explaining why.
+Pull requests will be treated as "review requests", and we will give
+feedback we expect to see corrected on
+[style](https://github.com/mozilla/rust/wiki/Note-style-guide) and
+substance before pulling.  Changes contributed via pull request should
+focus on a single issue at a time, like any other.  We will not accept
+pull-requests that try to "sneak" unrelated changes in.
 
-In the licensing header at the beginning of any files you change, please make sure the listed date range includes the current year.
-For example, if it's 2013, and you change a Rust file that was created in 2010, it should begin:
+Normally, all pull requests must include regression tests (see
+[Note-testsuite](https://github.com/mozilla/rust/wiki/Note-testsuite))
+that test your change.  Occasionally, a change will be very difficult
+to test for.  In those cases, please include a note in your commit
+message explaining why.
+
+In the licensing header at the beginning of any files you change,
+please make sure the listed date range includes the current year.  For
+example, if it's 2013, and you change a Rust file that was created in
+2010, it should begin:
 
 ```
 // Copyright 2010-2013 The Rust Project Developers.
 ```
 
-For more details, please refer to [Note-development-policy](https://github.com/mozilla/rust/wiki/Note-development-policy).
+For more details, please refer to
+[Note-development-policy](https://github.com/mozilla/rust/wiki/Note-development-policy).

Makefile.in

@@ -122,6 +122,10 @@ endif
 ifdef TRACE
   CFG_RUSTC_FLAGS += -Z trace
 endif
+ifndef DEBUG_BORROWS
+  RUSTFLAGS_STAGE1 += -Z no-debug-borrows
+  RUSTFLAGS_STAGE2 += -Z no-debug-borrows
+endif
 
 # platform-specific auto-configuration
 include $(CFG_SRC_DIR)mk/platform.mk
@@ -142,8 +146,7 @@ ifneq ($(wildcard $(CFG_GIT)),)
 ifneq ($(wildcard $(CFG_GIT_DIR)),)
     CFG_VERSION += $(shell git --git-dir=$(CFG_GIT_DIR) log -1 \
                      --pretty=format:'(%h %ci)')
-    CFG_VER_HASH = $(shell git --git-dir=$(CFG_GIT_DIR) log -1 \
-                     --pretty=format:'%H')
+    CFG_VER_HASH = $(shell git --git-dir=$(CFG_GIT_DIR) rev-parse HEAD)
 endif
 endif
 
@@ -201,8 +204,8 @@ define DEF_LIBS
 
 CFG_RUNTIME_$(1) :=$(call CFG_LIB_NAME_$(1),rustrt)
 CFG_RUSTLLVM_$(1) :=$(call CFG_LIB_NAME_$(1),rustllvm)
-CFG_CORELIB_$(1) :=$(call CFG_LIB_NAME_$(1),core)
 CFG_STDLIB_$(1) :=$(call CFG_LIB_NAME_$(1),std)
+CFG_EXTRALIB_$(1) :=$(call CFG_LIB_NAME_$(1),extra)
 CFG_LIBRUSTC_$(1) :=$(call CFG_LIB_NAME_$(1),rustc)
 CFG_LIBSYNTAX_$(1) :=$(call CFG_LIB_NAME_$(1),syntax)
 CFG_LIBFUZZER_$(1) :=$(call CFG_LIB_NAME_$(1),fuzzer)
@@ -211,17 +214,17 @@ CFG_LIBRUSTDOC_$(1) :=$(call CFG_LIB_NAME_$(1),rustdoc)
 CFG_LIBRUSTI_$(1) :=$(call CFG_LIB_NAME_$(1),rusti)
 CFG_LIBRUST_$(1) :=$(call CFG_LIB_NAME_$(1),rust)
 
+EXTRALIB_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),extra)
 STDLIB_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),std)
-CORELIB_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),core)
 LIBRUSTC_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),rustc)
 LIBSYNTAX_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),syntax)
 LIBFUZZER_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),fuzzer)
 LIBRUSTPKG_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),rustpkg)
 LIBRUSTDOC_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),rustdoc)
 LIBRUSTI_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),rusti)
 LIBRUST_GLOB_$(1) :=$(call CFG_LIB_GLOB_$(1),rust)
+EXTRALIB_DSYM_GLOB_$(1) :=$(call CFG_LIB_DSYM_GLOB_$(1),extra)
 STDLIB_DSYM_GLOB_$(1) :=$(call CFG_LIB_DSYM_GLOB_$(1),std)
-CORELIB_DSYM_GLOB_$(1) :=$(call CFG_LIB_DSYM_GLOB_$(1),core)
 LIBRUSTC_DSYM_GLOB_$(1) :=$(call CFG_LIB_DSYM_GLOB_$(1),rustc)
 LIBSYNTAX_DSYM_GLOB_$(1) :=$(call CFG_LIB_DSYM_GLOB_$(1),syntax)
 LIBFUZZER_DSYM_GLOB_$(1) :=$(call CFG_LIB_DSYM_GLOB_$(1),fuzzer)
@@ -236,19 +239,19 @@ $(foreach target,$(CFG_TARGET_TRIPLES),\
   $(eval $(call DEF_LIBS,$(target))))
 
 ######################################################################
-# Core library variables
+# Standard library variables
 ######################################################################
 
-CORELIB_CRATE := $(S)src/libcore/core.rc
-CORELIB_INPUTS := $(wildcard $(addprefix $(S)src/libcore/,        \
+STDLIB_CRATE := $(S)src/libstd/core.rc
+STDLIB_INPUTS := $(wildcard $(addprefix $(S)src/libstd/,        \
                                            core.rc *.rs */*.rs */*/*rs */*/*/*rs))
 
 ######################################################################
-# Standard library variables
+# Extra library variables
 ######################################################################
 
-STDLIB_CRATE := $(S)src/libstd/std.rc
-STDLIB_INPUTS := $(wildcard $(addprefix $(S)src/libstd/,          \
+EXTRALIB_CRATE := $(S)src/libextra/std.rc
+EXTRALIB_INPUTS := $(wildcard $(addprefix $(S)src/libextra/,          \
                                           std.rc *.rs */*.rs))
 
 ######################################################################
@@ -271,7 +274,7 @@ DRIVER_CRATE := $(S)src/driver/driver.rs
 
 # FIXME: x86-ism
 LLVM_COMPONENTS=x86 arm mips ipo bitreader bitwriter linker asmparser jit mcjit \
-                interpreter
+                interpreter instrumentation
 
 define DEF_LLVM_VARS
 # The configure script defines these variables with the target triples
@@ -340,33 +343,33 @@ TROOT$(1)_T_$(2)_H_$(3) = $$(HLIB$(1)_H_$(3))/rustc/$(2)
 TBIN$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/bin
 TLIB$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/$$(CFG_LIBDIR)
 
-# The name of the core and standard libraries used by rustc
+# The name of the standard and extra libraries used by rustc
 ifdef CFG_DISABLE_SHAREDSTD
-  HCORELIB_DEFAULT$(1)_H_$(3) = \
-    $$(HLIB$(1)_H_$(3))/libcore.rlib
-  TCORELIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
-    $$(TLIB$(1)_T_$(2)_H_$(3))/libcore.rlib
-
   HSTDLIB_DEFAULT$(1)_H_$(3) = \
     $$(HLIB$(1)_H_$(3))/libstd.rlib
   TSTDLIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
     $$(TLIB$(1)_T_$(2)_H_$(3))/libstd.rlib
 
+  HEXTRALIB_DEFAULT$(1)_H_$(3) = \
+    $$(HLIB$(1)_H_$(3))/libextra.rlib
+  TEXTRALIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
+    $$(TLIB$(1)_T_$(2)_H_$(3))/libextra.rlib
+
   HLIBRUSTC_DEFAULT$(1)_H_$(3) = \
     $$(HLIB$(1)_H_$(3))/librustc.rlib
   TLIBRUSTC_DEFAULT$(1)_T_$(2)_H_$(3) = \
     $$(TLIB$(1)_T_$(2)_H_$(3))/librustc.rlib
 else
-  HCORELIB_DEFAULT$(1)_H_$(3) = \
-    $$(HLIB$(1)_H_$(3))/$(CFG_CORELIB_$(3))
-  TCORELIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
-    $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_CORELIB_$(2))
-
   HSTDLIB_DEFAULT$(1)_H_$(3) = \
     $$(HLIB$(1)_H_$(3))/$(CFG_STDLIB_$(3))
   TSTDLIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
     $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_STDLIB_$(2))
 
+  HEXTRALIB_DEFAULT$(1)_H_$(3) = \
+    $$(HLIB$(1)_H_$(3))/$(CFG_EXTRALIB_$(3))
+  TEXTRALIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
+    $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_EXTRALIB_$(2))
+
   HLIBRUSTC_DEFAULT$(1)_H_$(3) = \
     $$(HLIB$(1)_H_$(3))/$(CFG_LIBRUSTC_$(3))
   TLIBRUSTC_DEFAULT$(1)_T_$(2)_H_$(3) = \
@@ -378,8 +381,8 @@ HSREQ$(1)_H_$(3) = \
 	$$(HBIN$(1)_H_$(3))/rustc$$(X_$(3)) \
 	$$(HLIB$(1)_H_$(3))/$(CFG_RUNTIME_$(3)) \
 	$$(HLIB$(1)_H_$(3))/$(CFG_RUSTLLVM_$(3)) \
-	$$(HCORELIB_DEFAULT$(1)_H_$(3)) \
 	$$(HSTDLIB_DEFAULT$(1)_H_$(3)) \
+	$$(HEXTRALIB_DEFAULT$(1)_H_$(3)) \
 	$$(HLIBSYNTAX_DEFAULT$(1)_H_$(3)) \
 	$$(HLIBRUSTC_DEFAULT$(1)_H_$(3)) \
 	$$(MKFILE_DEPS)
@@ -393,8 +396,8 @@ TSREQ$(1)_T_$(2)_H_$(3) = \
 # Prerequisites for a working stageN compiler and libraries, for a specific target
 SREQ$(1)_T_$(2)_H_$(3) = \
 	$$(TSREQ$(1)_T_$(2)_H_$(3)) \
-	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_CORELIB_$(2)) \
-	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_STDLIB_$(2))
+	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_STDLIB_$(2)) \
+	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_EXTRALIB_$(2))
 
 # Prerequisites for a working stageN compiler and libraries, for a specific target
 CSREQ$(1)_T_$(2)_H_$(3) = \
@@ -409,8 +412,8 @@ CSREQ$(1)_T_$(2)_H_$(3) = \
 	$$(HLIB$(1)_H_$(3))/$(CFG_LIBRUSTDOC_$(3)) \
 	$$(HLIB$(1)_H_$(3))/$(CFG_LIBRUSTI_$(3)) \
 	$$(HLIB$(1)_H_$(3))/$(CFG_LIBRUST_$(3)) \
-	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_CORELIB_$(2)) \
-	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_STDLIB_$(2))  \
+	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_STDLIB_$(2)) \
+	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_EXTRALIB_$(2))  \
 	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBSYNTAX_$(2))  \
 	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBRUSTC_$(2)) \
 	$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBFUZZER_$(2)) \

configure

@@ -376,6 +376,7 @@ opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
 opt manage-submodules 1 "let the build manage the git submodules"
 opt mingw-cross 0 "cross-compile for win32 using mingw"
 opt clang 0 "prefer clang to gcc for building the runtime"
+opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
 opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
 opt pax-flags 0 "apply PaX flags to rustc binaries (required for GRSecurity/PaX-patched kernels)"
 valopt prefix "/usr/local" "set installation prefix"
@@ -421,6 +422,7 @@ else
 fi
 
 probe CFG_CLANG            clang++
+probe CFG_CCACHE           ccache
 probe CFG_GCC              gcc
 probe CFG_LD               ld
 probe CFG_VALGRIND         valgrind
@@ -555,11 +557,11 @@ then
     CFG_CLANG_VERSION=$("$CFG_CLANG" \
                       --version \
                       | grep version \
-                      | sed 's/.*\(version .*\)/\1/' \
+                      | sed 's/.*\(version .*\)/\1/; s/.*based on \(LLVM .*\))/\1/' \
                       | cut -d ' ' -f 2)
 
     case $CFG_CLANG_VERSION in
-        (3.0svn | 3.0 | 3.1* | 3.2* | 3.3* | 4.0* | 4.1* | 4.2*)
+        (3.0svn | 3.0 | 3.1* | 3.2* | 3.3* | 3.4* )
         step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
         CFG_C_COMPILER="clang"
         ;;
@@ -571,6 +573,16 @@ else
     CFG_C_COMPILER="gcc"
 fi
 
+if [ ! -z "$CFG_ENABLE_CCACHE" ]
+then
+    if [ -z "$CFG_CCACHE" ]
+    then
+        err "ccache requested but not found"
+    fi
+
+    CFG_C_COMPILER="ccache $CFG_C_COMPILER"
+fi
+
 # a little post-processing of various config values
 
 CFG_PREFIX=${CFG_PREFIX%/}
@@ -643,7 +655,7 @@ fi
 step_msg "making directories"
 
 for i in \
-    doc doc/core doc/std \
+    doc doc/std doc/extra \
     dl tmp
 do
     make_dir $i
@@ -665,12 +677,16 @@ make_dir rt
 for t in $CFG_TARGET_TRIPLES
 do
   make_dir rt/$t
-  for i in                                          \
-    isaac linenoise sync test \
-    arch/i386 arch/x86_64 arch/arm arch/mips  \
-    libuv libuv/src/ares libuv/src/eio libuv/src/ev
+  for s in 0 1 2 3
   do
-    make_dir rt/$t/$i
+    make_dir rt/$t/stage$s
+    for i in                                          \
+      isaac linenoise sync test \
+      arch/i386 arch/x86_64 arch/arm arch/mips  \
+      libuv libuv/src/ares libuv/src/eio libuv/src/ev
+    do
+      make_dir rt/$t/stage$s/$i
+    done
   done
 done
 
@@ -821,20 +837,35 @@ do
                    --enable-bindings=none --disable-threads \
                    --disable-pthreads"
 
-        if [ "$CFG_C_COMPILER" = "clang" ]
-        then
+        case "$CFG_C_COMPILER" in
+            ("ccache clang")
+            LLVM_CXX_32="ccache clang++ -m32 -Qunused-arguments"
+            LLVM_CC_32="ccache clang -m32 -Qunused-arguments"
+
+            LLVM_CXX_64="ccache clang++ -Qunused-arguments"
+            LLVM_CC_64="ccache clang -Qunused-arguments"
+            ;;
+            ("clang")
             LLVM_CXX_32="clang++ -m32"
             LLVM_CC_32="clang -m32"
 
             LLVM_CXX_64="clang++"
             LLVM_CC_64="clang"
-        else
+            ;;
+            ("ccache gcc")
+            LLVM_CXX_32="ccache g++ -m32"
+            LLVM_CC_32="ccache gcc -m32"
+
+            LLVM_CXX_64="ccache g++"
+            LLVM_CC_64="ccache gcc"
+            ;;
+            ("gcc")
             LLVM_CXX_32="g++ -m32"
             LLVM_CC_32="gcc -m32"
 
             LLVM_CXX_64="g++"
             LLVM_CC_64="gcc"
-        fi
+        esac
 
         LLVM_CFLAGS_32="-m32"
         LLVM_CXXFLAGS_32="-m32"
@@ -931,6 +962,21 @@ then
     putvar CFG_PAXCTL
 fi
 
+# Avoid spurious warnings from clang by feeding it original source on
+# ccache-miss rather than preprocessed input.
+if [ ! -z "$CFG_ENABLE_CCACHE" ] && [ ! -z "$CFG_ENABLE_CLANG" ]
+then
+    CFG_CCACHE_CPP2=1
+    putvar CFG_CCACHE_CPP2
+fi
+
+if [ ! -z "$CFG_ENABLE_CCACHE" ]
+then
+    CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
+    putvar CFG_CCACHE_BASEDIR
+fi
+
+
 if [ ! -z $BAD_PANDOC ]
 then
     CFG_PANDOC=