From mboxrd@z Thu Jan 1 00:00:00 1970 From: Romain Naour Date: Sun, 6 Dec 2020 18:35:33 +0100 Subject: [Buildroot] [PATCHv5 1/5] package/llvm: add BPF backend Message-ID: <20201206173537.1397691-1-romain.naour@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net From: Jugurtha BELKALEM bcc is a front-end tool for eBPF : https://github.com/iovisor/bcc/blob/master/README.md. eBPF is the most powerful Linux tracer, and bcc allows to write eBPF scripts in C and PYTHON3. BCC requires enabling LLVM backend BPF support. Signed-off-by: Jugurtha BELKALEM Signed-off-by: Romain Naour Cc: Qais Yousef --- package/llvm/Config.in | 6 ++++++ package/llvm/llvm.mk | 5 +++++ 2 files changed, 11 insertions(+) diff --git a/package/llvm/Config.in b/package/llvm/Config.in index 1d21d879da..6ec2ffcfe6 100644 --- a/package/llvm/Config.in +++ b/package/llvm/Config.in @@ -47,6 +47,12 @@ config BR2_PACKAGE_LLVM_RTTI https://llvm.org/docs/HowToSetUpLLVMStyleRTTI.html +config BR2_PACKAGE_LLVM_BPF + bool "BPF backend" + help + Build BPF target. Select this option if you are going + to install bcc on the target. + endif comment "llvm needs a toolchain w/ wchar, threads, C++, gcc >= 4.8, dynamic library" diff --git a/package/llvm/llvm.mk b/package/llvm/llvm.mk index 24d033d124..48a298191c 100644 --- a/package/llvm/llvm.mk +++ b/package/llvm/llvm.mk @@ -61,6 +61,11 @@ ifeq ($(BR2_PACKAGE_LLVM_AMDGPU),y) LLVM_TARGETS_TO_BUILD += AMDGPU endif +# Build BPF backend +ifeq ($(BR2_PACKAGE_LLVM_BPF),y) +LLVM_TARGETS_TO_BUILD += BPF +endif + # Use native llvm-tblgen from host-llvm (needed for cross-compilation) LLVM_CONF_OPTS += -DLLVM_TABLEGEN=$(HOST_DIR)/bin/llvm-tblgen -- 2.25.4