Instrumentation support for PIE & shared libs on x86_64 Linux

.dockerignore

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+.git

.github/workflows/Dockerfile

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+FROM ubuntu:20.04 AS builder
+
+ARG DEBIAN_FRONTEND=noninteractive
+ENV TZ=UTC
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends ca-certificates git \
+      build-essential cmake ninja-build python3 libjemalloc-dev && \
+    rm -rf /var/lib/apt/lists
+
+WORKDIR /home/bolt
+
+COPY . llvm-bolt
+
+WORKDIR build
+
+RUN cmake -G Ninja ../llvm-bolt/llvm \
+      -DLLVM_ENABLE_PROJECTS="bolt" \
+      -DLLVM_TARGETS_TO_BUILD="X86;AArch64" \
+      -DCMAKE_BUILD_TYPE=Release \
+      -DLLVM_ENABLE_ASSERTIONS=ON \
+      -DCMAKE_EXE_LINKER_FLAGS="-Wl,--push-state -Wl,-whole-archive -ljemalloc_pic -Wl,--pop-state -lpthread -lstdc++ -lm -ldl" \
+      -DCMAKE_INSTALL_PREFIX=/home/bolt/install
+
+RUN ninja check-bolt && \
+    ninja install-llvm-bolt install-perf2bolt install-merge-fdata \
+      install-llvm-boltdiff install-bolt_rt
+
+FROM ubuntu:20.04
+
+COPY --from=builder /home/bolt/install /usr/local

.github/workflows/docker-image.yml

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+name: Docker Image CI
+
+on:
+  push:
+    branches: [ rebased ]
+  pull_request:
+    branches: [ rebased ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build the Docker image and test
+      run: docker build . --file .github/workflows/Dockerfile --tag ubuntu-bolt:$(date +%s)

bolt/CMakeLists.txt

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+include(ExternalProject)
+
+set(BOLT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+set(BOLT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
+set(CMAKE_CXX_STANDARD 14)
+
+ExternalProject_Add(bolt_rt
+  SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/runtime"
+  STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-stamps
+  BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-bins
+  CMAKE_ARGS -DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
+             -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
+             -DCMAKE_BUILD_TYPE=Release
+             -DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}
+             -DCMAKE_INSTALL_PREFIX=${LLVM_BINARY_DIR}
+  # You might want to set this to True if actively developing bolt_rt, otherwise
+  # cmake will not rebuild it after source code changes
+  BUILD_ALWAYS True
+  )
+
+install(CODE "execute_process\(COMMAND \${CMAKE_COMMAND} -DCMAKE_INSTALL_PREFIX=\${CMAKE_INSTALL_PREFIX} -P ${CMAKE_CURRENT_BINARY_DIR}/bolt_rt-bins/cmake_install.cmake \)"
+  COMPONENT bolt_rt)
+
+add_llvm_install_targets(install-bolt_rt
+  DEPENDS bolt_rt
+  COMPONENT bolt_rt)
+
+add_subdirectory(src)
+add_subdirectory(test)

bolt/LICENSE.TXT

@@ -0,0 +1,279 @@
+==============================================================================
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