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config: add choice for selecting the LLVM toolchain type

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This is global for all BPF based packages

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2021-11-01 15:36:36 +01:00
parent 2d5b83197a
commit 5ad663b765
2 changed files with 25 additions and 7 deletions
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30
toolchain/Config.in
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@ -37,13 +37,31 @@ 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
choice BPF_TOOLCHAIN
prompt "BPF toolchain" if DEVEL
default BPF_TOOLCHAIN_NONE
config BPF_TOOLCHAIN_NONE
bool "None"
config BPF_TOOLCHAIN_HOST
bool "Use host LLVM toolchain"
config BPF_TOOLCHAIN_BUILD_LLVM
bool "Build LLVM toolchain for eBPF"
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
endchoice
config BPF_TOOLCHAIN_HOST_PATH
string
depends on BPF_TOOLCHAIN_HOST
prompt "Host LLVM toolchain path (prefix)" if DEVEL
default "/usr/local/opt/llvm" if HOST_OS_MACOS
default ""
menuconfig EXTERNAL_TOOLCHAIN
bool

2
tools/Makefile
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@ -35,7 +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-$(CONFIG_BUILD_LLVM_BPF) += llvm-bpf
tools-$(CONFIG_BPF_TOOLCHAIN_BUILD_LLVM) += llvm-bpf
# builddir dependencies
$(curdir)/autoconf/compile := $(curdir)/m4/compile