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rustbuild: Add sccache support

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This commit adds support for sccache, a ccache-like compiler which works on MSVC
and stores results into an S3 bucket. This also switches over all Travis and
AppVeyor automation to using sccache to ensure a shared and unified cache over
time which can be shared across builders.

The support for sccache manifests as a new `--enable-sccache` option which
instructs us to configure LLVM differently to use a 'sccache' binary instead of
a 'ccache' binary. All docker images for Travis builds are updated to download
Mozilla's tooltool builds of sccache onto various containers and systems.
Additionally a new `rust-lang-ci-sccache` bucket is configured to hold all of
our ccache goodies.
This commit is contained in:
Alex Crichton 2016-12-12 11:36:52 -08:00
parent 0d558d012a
commit 96a5fc76dc
21 changed files with 152 additions and 35 deletions
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21
configure vendored
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@ -621,6 +621,7 @@ opt llvm-assertions 0 "build LLVM with assertions"
opt debug-assertions 0 "build with debugging assertions"
opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
opt sccache 0 "invoke gcc/clang via sccache to reuse object files between builds"
opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
opt local-rebuild 0 "assume local-rust matches the current version, for rebuilds; implies local-rust, and is implied if local-rust already matches the current version"
opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
@ -1677,11 +1678,23 @@ do
LLVM_CC_64_ARG1="gcc"
;;
("gcc")
LLVM_CXX_32="g++"
LLVM_CC_32="gcc"
if [ -z "$CFG_ENABLE_SCCACHE" ]; then
LLVM_CXX_32="g++"
LLVM_CC_32="gcc"
LLVM_CXX_64="g++"
LLVM_CC_64="gcc"
LLVM_CXX_64="g++"
LLVM_CC_64="gcc"
else
LLVM_CXX_32="sccache"
LLVM_CC_32="sccache"
LLVM_CXX_32_ARG1="g++"
LLVM_CC_32_ARG1="gcc"
LLVM_CXX_64="sccache"
LLVM_CC_64="sccache"
LLVM_CXX_64_ARG1="g++"
LLVM_CC_64_ARG1="gcc"
fi
;;
(*)