--- 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