Bug 1430315 - Add a toolchain job to build llvm-dsymutil independently. r=rillian
We've had problems with crashes in llvm-dsymutil for a while, and while
they are, in essence, due to the fact that rustc produces bad debug
info, they are a hurdle to our builds. The tool comes along clang, and
updating clang is not necessarily easy (witness
bug 1409265), so, so
far, we've relied on backporting fixes, which can be time confusing
(witness
bug 1410148).
OTOH, llvm-dsymutil is a rather specific tool, that doesn't strictly
need to be tied to clang. It's only tied to it because it uses the llvm
code to do some of the things it does, and it's part of the llvm source
tree. But it could just as well be a separate tool, like it was(is?) on
OSX.
So, we add a toolchain job to build it from the llvm source,
independently from clang, so that we can update it separately, if we
hit new crashes that happen to already be fixed on llvm trunk. It will
also allow to more easily update after upstream fixes crashes after we
report them.
--- a/taskcluster/ci/toolchain/linux.yml
+++ b/taskcluster/ci/toolchain/linux.yml
@@ -166,16 +166,33 @@ linux64-sixgill:
script: build-gcc-sixgill-plugin-linux.sh
resources:
- 'build/unix/build-gcc/build-gcc.sh'
- 'taskcluster/scripts/misc/build-gcc-sixgill-plugin-linux.sh'
toolchain-artifact: public/build/sixgill.tar.xz
toolchains:
- linux64-gcc-4.9
+linux64-llvm-dsymutil:
+ description: "llvm-dsymutil toolchain build"
+ treeherder:
+ kind: build
+ platform: toolchains/opt
+ symbol: TL(dsymutil)
+ tier: 1
+ worker-type: aws-provisioner-v1/gecko-{level}-b-linux
+ worker:
+ max-run-time: 1800
+ run:
+ using: toolchain-script
+ script: build-llvm-dsymutil.sh
+ toolchain-artifact: public/build/llvm-dsymutil.tar.xz
+ toolchains:
+ - linux64-gcc-4.9
+
linux64-binutils:
description: "Binutils toolchain build"
treeherder:
kind: build
platform: toolchains/opt
symbol: TL(binutil)
tier: 1
worker-type: aws-provisioner-v1/gecko-{level}-b-linux
new file mode 100755
--- /dev/null
+++ b/taskcluster/scripts/misc/build-llvm-dsymutil.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+set -x -e -v
+
+# This script is for building clang for Linux.
+
+WORKSPACE=$HOME/workspace
+HOME_DIR=$WORKSPACE/build
+UPLOAD_DIR=$HOME/artifacts
+
+cd $HOME_DIR/src
+
+. taskcluster/scripts/misc/tooltool-download.sh
+
+git clone -n https://github.com/llvm-mirror/llvm
+
+cd llvm
+git checkout 4727bc748a48e46824eae55a81ae890cd25c3a34
+
+mkdir build
+cd build
+
+cmake \
+ -GNinja \
+ -DCMAKE_BUILD_TYPE=Release \
+ -DLLVM_TARGETS_TO_BUILD=X86 \
+ -DCMAKE_C_COMPILER=$HOME_DIR/src/gcc/bin/gcc \
+ ..
+
+export LD_LIBRARY_PATH=$HOME_DIR/src/gcc/lib64
+
+ninja llvm-dsymutil
+
+strip bin/llvm-dsymutil
+
+tar --xform='s,^,llvm-dsymutil/,' -Jcf llvm-dsymutil.tar.xz bin/llvm-dsymutil
+
+mkdir -p $UPLOAD_DIR
+cp llvm-dsymutil.tar.xz $UPLOAD_DIR
