---

yaml
---
r: 60814
b: refs/heads/auto
c: 2b08337
h: refs/heads/master
v: v3

Author: pnkfelix

[refs]

@@ -14,6 +14,6 @@ refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0
 refs/tags/release-0.3.1: 495bae036dfe5ec6ceafd3312b4dca48741e845b
 refs/tags/release-0.4: e828ea2080499553b97dfe33b3f4d472b4562ad7
 refs/tags/release-0.5: 7e3bcfbf21278251ee936ad53e92e9b719702d73
-refs/heads/auto: 35655a0fb3bde60985d5f92437a729c37bb8755a
+refs/heads/auto: 2b083373e4ac973bad8e3c2b949d6c12991bd623
 refs/heads/servo: af82457af293e2a842ba6b7759b70288da276167
 refs/tags/release-0.6: b4ebcfa1812664df5e142f0134a5faea3918544c

branches/auto/Makefile.in

@@ -275,7 +275,7 @@ DRIVER_CRATE := $(S)src/driver/driver.rs
 
 # FIXME: x86-ism
 LLVM_COMPONENTS=x86 arm mips ipo bitreader bitwriter linker asmparser jit mcjit \
-                interpreter instrumentation
+                interpreter
 
 define DEF_LLVM_VARS
 # The configure script defines these variables with the target triples

branches/auto/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/; s/.*based on \(LLVM .*\))/\1/' \
+                      | sed 's/.*\(version .*\)/\1/' \
                       | cut -d ' ' -f 2)
 
     case $CFG_CLANG_VERSION in
-        (3.0svn | 3.0 | 3.1* | 3.2* | 3.3*)
+        (3.0svn | 3.0 | 3.1* | 3.2* | 3.3* | 4.0* | 4.1* | 4.2*)
         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%/}
@@ -825,20 +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"
@@ -935,6 +962,14 @@ 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 $BAD_PANDOC ]
 then
     CFG_PANDOC=

branches/auto/doc/tutorial-tasks.md

@@ -284,7 +284,7 @@ let result = ports.foldl(0, |accum, port| *accum + port.recv() );
 # fn some_expensive_computation(_i: uint) -> int { 42 }
 ~~~
 
-## Backgrounding computations: Futures
+## Futures
 With `extra::future`, rust has a mechanism for requesting a computation and getting the result
 later.
 
@@ -329,77 +329,6 @@ fn main() {
 }
 ~~~
 
-## Sharing immutable data without copy: ARC
-
-To share immutable data between tasks, a first approach would be to only use pipes as we have seen
-previously. A copy of the data to share would then be made for each task. In some cases, this would
-add up to a significant amount of wasted memory and would require copying the same data more than
-necessary.
-
-To tackle this issue, one can use an Atomically Reference Counted wrapper (`ARC`) as implemented in
-the `extra` library of Rust. With an ARC, the data will no longer be copied for each task. The ARC
-acts as a reference to the shared data and only this reference is shared and cloned.
-
-Here is a small example showing how to use ARCs. We wish to run concurrently several computations on
-a single large vector of floats. Each task needs the full vector to perform its duty.
-~~~
-use extra::arc::ARC;
-
-fn pnorm(nums: &~[float], p: uint) -> float {
-    (vec::foldl(0.0, *nums, |a,b| a+(*b).pow(p as float) )).pow(1f / (p as float))
-}
-
-fn main() {
-    let numbers=vec::from_fn(1000000, |_| rand::random::<float>());
-    println(fmt!("Inf-norm = %?",  numbers.max()));
-
-    let numbers_arc = ARC(numbers);
-
-    for uint::range(1,10) |num| {
-        let (port, chan)  = stream();
-        chan.send(numbers_arc.clone());
-
-        do spawn {
-            let local_arc : ARC<~[float]> = port.recv();
-            let task_numbers = local_arc.get();
-            println(fmt!("%u-norm = %?", num, pnorm(task_numbers, num)));
-        }
-    }
-}
-~~~
-
-The function `pnorm` performs a simple computation on the vector (it computes the sum of its items
-at the power given as argument and takes the inverse power of this value). The ARC on the vector is
-created by the line
-~~~
-# use extra::arc::ARC;
-# let numbers=vec::from_fn(1000000, |_| rand::random::<float>());
-let numbers_arc=ARC(numbers);
-~~~
-and a clone of it is sent to each task
-~~~
-# use extra::arc::ARC;
-# let numbers=vec::from_fn(1000000, |_| rand::random::<float>());
-# let numbers_arc = ARC(numbers);
-# let (port, chan)  = stream();
-chan.send(numbers_arc.clone());
-~~~
-copying only the wrapper and not its contents.
-
-Each task recovers the underlying data by
-~~~
-# use extra::arc::ARC;
-# let numbers=vec::from_fn(1000000, |_| rand::random::<float>());
-# let numbers_arc=ARC(numbers);
-# let (port, chan)  = stream();
-# chan.send(numbers_arc.clone());
-# let local_arc : ARC<~[float]> = port.recv();
-let task_numbers = local_arc.get();
-~~~
-and can use it as if it were local.
-
-The `arc` module also implements ARCs around mutable data that are not covered here.
-
 # Handling task failure
 
 Rust has a built-in mechanism for raising exceptions. The `fail!()` macro

branches/auto/mk/platform.mk

@@ -105,10 +105,35 @@ ifeq ($(CFG_C_COMPILER),gcc)
   ifeq ($(origin CPP),default)
     CPP=gcc
   endif
+else
+ifeq ($(CFG_C_COMPILER),ccache clang)
+  # The -Qunused-arguments sidesteps spurious warnings from clang
+  ifeq ($(origin CC),default)
+    CC=ccache clang -Qunused-arguments
+  endif
+  ifeq ($(origin CXX),default)
+    CXX=ccache clang++ -Qunused-arguments
+  endif
+  ifeq ($(origin CPP),default)
+    CPP=ccache clang -Qunused-arguments
+  endif
+else
+ifeq ($(CFG_C_COMPILER),ccache gcc)
+  ifeq ($(origin CC),default)
+    CC=ccache gcc
+  endif
+  ifeq ($(origin CXX),default)
+    CXX=ccache g++
+  endif
+  ifeq ($(origin CPP),default)
+    CPP=ccache gcc
+  endif
 else
   CFG_ERR := $(error please try on a system with gcc or clang)
 endif
 endif
+endif
+endif
 
 
 # x86_64-unknown-linux-gnu configuration
@@ -366,6 +391,10 @@ CFG_LDPATH_x86_64-unknown-freebsd :=
 CFG_RUN_x86_64-unknown-freebsd=$(2)
 CFG_RUN_TARG_x86_64-unknown-freebsd=$(call CFG_RUN_x86_64-unknown-freebsd,,$(2))
 
+ifeq ($(CFG_CCACHE_CPP2),1)
+  CCACHE_CPP2=1
+  export CCACHE_CPP
+endif
 
 define CFG_MAKE_TOOLCHAIN
   CFG_COMPILE_C_$(1) = $$(CC_$(1))  \

branches/auto/mk/rustllvm.mk

@@ -22,7 +22,7 @@ LLVM_EXTRA_INCDIRS_$(1)= -iquote $(S)src/llvm/include \
                          -iquote llvm/$(1)/include
 endif
 
-RUSTLLVM_OBJS_CS_$(1) := $$(addprefix rustllvm/, RustWrapper.cpp PassWrapper.cpp)
+RUSTLLVM_OBJS_CS_$(1) := $$(addprefix rustllvm/, RustWrapper.cpp)
 
 RUSTLLVM_DEF_$(1) := rustllvm/rustllvm$(CFG_DEF_SUFFIX_$(1))
 

branches/auto/mk/target.mk

@@ -8,11 +8,6 @@
 # option. This file may not be copied, modified, or distributed
 # except according to those terms.
 
-# This is the compile-time target-triple for the compiler. For the compiler at
-# runtime, this should be considered the host-triple. More explanation for why
-# this exists can be found on issue #2400
-export CFG_COMPILER_TRIPLE
-
 # TARGET_STAGE_N template: This defines how target artifacts are built
 # for all stage/target architecture combinations. The arguments:
 # $(1) is the stage
@@ -67,7 +62,6 @@ $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_RUSTLLVM_$(3)): \
 	@$$(call E, cp: $$@)
 	$$(Q)cp $$< $$@
 
-$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBRUSTC_$(3)): CFG_COMPILER_TRIPLE = $(2)
 $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBRUSTC_$(3)):		\
 		$$(COMPILER_CRATE) $$(COMPILER_INPUTS)		\
                 $$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBSYNTAX_$(3)) \

branches/auto/mk/tests.mk

@@ -284,7 +284,7 @@ define TEST_RUNNER
 # If NO_REBUILD is set then break the dependencies on extra so we can
 # test crates without rebuilding std and extra first
 ifeq ($(NO_REBUILD),)
-STDTESTDEP_$(1)_$(2)_$(3) = $$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_EXTRALIB_$(2))
+STDTESTDEP_$(1)_$(2)_$(3) = $$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_STDLIB_$(2))
 else
 STDTESTDEP_$(1)_$(2)_$(3) =
 endif
@@ -307,7 +307,6 @@ $(3)/stage$(1)/test/syntaxtest-$(2)$$(X_$(2)):			\
 	@$$(call E, compile_and_link: $$@)
 	$$(STAGE$(1)_T_$(2)_H_$(3)) -o $$@ $$< --test
 
-$(3)/stage$(1)/test/rustctest-$(2)$$(X_$(2)): CFG_COMPILER_TRIPLE = $(2)
 $(3)/stage$(1)/test/rustctest-$(2)$$(X_$(2)):					\
 		$$(COMPILER_CRATE) $$(COMPILER_INPUTS) \
 		$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_RUSTLLVM_$(2)) \

branches/auto/src/compiletest/compiletest.rc

@@ -12,7 +12,6 @@
 
 #[allow(non_camel_case_types)];
 
-#[no_core]; // XXX: Remove after snapshot
 #[no_std];
 
 extern mod core(name = "std", vers = "0.7-pre");