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WIP: building llvmlibc via fullbuild mode #52

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22 changes: 22 additions & 0 deletions llvm-project/Dockerfile.libc
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
FROM docker.io/alpine:edge as source
RUN wget --no-clobber \
https://github.com/llvm/llvm-project/releases/download/llvmorg-17.0.6/llvm-project-17.0.6.src.tar.xz

FROM docker.io/alpine:edge AS stage_one

COPY --from=source llvm-project-17.0.6.src.tar.xz /
RUN tar xf llvm-project-17.0.6.src.tar.xz && \
mv llvm-project-17.0.6.src llvm-project

RUN apk add cmake ninja clang python3 lld

COPY libc.cmake llvm-project/.
ARG LLVM_BUILD_DIR=llvm-project/llvm/build

RUN apk add linux-headers

RUN cmake \
-B ${LLVM_BUILD_DIR} \
-C llvm-project/libc.cmake \
-S llvm-project/llvm \
-G Ninja
7 changes: 6 additions & 1 deletion llvm-project/Makefile
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Expand Up @@ -9,7 +9,7 @@ IMAGE ?= ghcr.io/clangbuiltlinux/llvm-project

dotfiles: stage2.svg stage1.svg

.PHONY: clang epoch1 epoch2 epoch3
.PHONY: clang epoch1 epoch2 epoch3 libc

# Argument 1: epoch# (e.g., epoch1; should match the suffix of the Dockerfile)
# Argument 2: Tag (e.g., ghcr.io/clangbuiltlinux/llvm-project:stage2-x86_64)
Expand All @@ -35,5 +35,10 @@ clang: epoch3
$(DOCKER) create --name llvm-project $(IMAGE):stage3-$(HOST_ARCH)
$(DOCKER) cp llvm-project:/usr/local/bin/clang-14 clang

libc:
$(DOCKER) rm libc || true
# $(DOCKER) create --name libc libc-$(HOST_ARCH)
$(DOCKER) build --file Dockerfile.libc . --tag libc

test: epoch3
bash ../ci/test-clang.sh $(IMAGE):stage3-$(HOST_ARCH)
17 changes: 17 additions & 0 deletions llvm-project/libc.cmake
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# Use Alpine's clang and clang++ from their clang package as the stage0
# compilers.
set(CMAKE_CXX_COMPILER "/usr/bin/clang++" CACHE FILEPATH "")
set(CMAKE_C_COMPILER "/usr/bin/clang" CACHE FILEPATH "")
set(CMAKE_BUILD_TYPE "Debug" CACHE STRING "")

# Use Alpine's lld as the stage0 linker to link everything.
set(LLVM_ENABLE_LLD ON CACHE BOOL "")

# TODO: why does clang need to be enabled?
set(LLVM_ENABLE_PROJECTS "clang;compiler-rt;libc;" CACHE STRING "")

set(LLVM_LIBC_FULL_BUILD ON CACHE BOOL "")
set(LLVM_LIBC_INCLUDE_SCUDO ON CACHE BOOL "")
set(COMPILER_RT_BUILD_SCUDO_STANDALONE_WITH_LLVM_LIBC ON CACHE BOOL "")
set(COMPILER_RT_BUILD_GWP_ASAN OFF CACHE BOOL "")
set(COMPILER_RT_SCUDO_STANDALONE_BUILD_SHARED OFF CACHE BOOL "")