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| author | Felix Fietkau <nbd@nbd.name> | 2021-10-17 17:50:53 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-10-20 11:35:34 +0200 |
| commit | faa6a9a04beda71da49dd2d96225e892899e84d7 (patch) | |
| tree | 99eb26cc3383c8d5f167ac73a802a7ac2c5332ef | |
| parent | 1c07eab9f81f1ee99cc2ae36596bda81c12d5dbc (diff) | |
| download | upstream-faa6a9a04beda71da49dd2d96225e892899e84d7.tar.gz upstream-faa6a9a04beda71da49dd2d96225e892899e84d7.tar.bz2 upstream-faa6a9a04beda71da49dd2d96225e892899e84d7.zip | |
tools/llvm-bpf: add llvm+clang build suitable for compiling code to eBPF
Preparation for building packages that ship eBPF code
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | toolchain/Config.in | 7 | ||||
| -rw-r--r-- | tools/Makefile | 2 | ||||
| -rw-r--r-- | tools/llvm-bpf/Makefile | 36 |
3 files changed, 45 insertions, 0 deletions
diff --git a/toolchain/Config.in b/toolchain/Config.in index 8ff5438d79..1d230ca22f 100644 --- a/toolchain/Config.in +++ b/toolchain/Config.in @@ -37,6 +37,13 @@ menuconfig TARGET_OPTIONS Most people will answer N. +config BUILD_LLVM_BPF + bool "Build LLVM toolchain for eBPF" if DEVEL + help + If enabled, a LLVM toolchain for building eBPF binaries will be built. + If this is not enabled, eBPF packages can only be built if the host + has a suitable toolchain + menuconfig EXTERNAL_TOOLCHAIN bool diff --git a/tools/Makefile b/tools/Makefile index f794e57f2e..dc665f6b46 100644 --- a/tools/Makefile +++ b/tools/Makefile @@ -35,6 +35,7 @@ tools-$(CONFIG_TARGET_mxs) += elftosb sdimage tools-$(CONFIG_TARGET_tegra) += cbootimage cbootimage-configs tools-$(CONFIG_USES_MINOR) += kernel2minor tools-$(CONFIG_USE_SPARSE) += sparse +tools-$(CONFIG_BUILD_LLVM_BPF) += llvm-bpf # builddir dependencies $(curdir)/autoconf/compile := $(curdir)/m4/compile @@ -56,6 +57,7 @@ $(curdir)/isl/compile := $(curdir)/gmp/compile $(curdir)/libressl/compile := $(curdir)/pkgconf/compile $(curdir)/libtool/compile := $(curdir)/m4/compile $(curdir)/autoconf/compile $(curdir)/automake/compile $(curdir)/missing-macros/compile $(curdir)/lzma-old/compile := $(curdir)/zlib/compile +$(curdir)/llvm-bpf/compile := $(curdir)/cmake/compile $(curdir)/make-ext4fs/compile := $(curdir)/zlib/compile $(curdir)/meson/compile := $(curdir)/ninja/compile $(curdir)/missing-macros/compile := $(curdir)/autoconf/compile diff --git a/tools/llvm-bpf/Makefile b/tools/llvm-bpf/Makefile new file mode 100644 index 0000000000..a5ba2a4cb7 --- /dev/null +++ b/tools/llvm-bpf/Makefile @@ -0,0 +1,36 @@ +# +# Copyright (C) 2006-2016 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# +include $(TOPDIR)/rules.mk + +PKG_NAME:=llvm-project +PKG_VERSION:=13.0.0 +PKG_RELEASE:=1 + +PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).src.tar.xz +PKG_SOURCE_URL:=https://github.com/llvm/llvm-project/releases/download/llvmorg-$(PKG_VERSION) +PKG_HASH:=6075ad30f1ac0e15f07c1bf062c1e1268c241d674f11bd32cdf0e040c71f2bf3 + +HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)-$(PKG_VERSION).src + +HOST_BUILD_PARALLEL:=1 + +CMAKE_BINARY_SUBDIR := build +CMAKE_SOURCE_SUBDIR := llvm + +include $(INCLUDE_DIR)/host-build.mk +include $(INCLUDE_DIR)/cmake.mk + +CMAKE_HOST_OPTIONS += \ + -DLLVM_ENABLE_BINDINGS=OFF \ + -DLLVM_INCLUDE_DOCS=OFF \ + -DLLVM_INCLUDE_EXAMPLES=OFF \ + -DLLVM_INCLUDE_TESTS=OFF \ + -DLLVM_ENABLE_PROJECTS="clang;lld" \ + -DLLVM_TARGETS_TO_BUILD=BPF \ + -DCLANG_BUILD_EXAMPLES=OFF + +$(eval $(call HostBuild)) |