From c58177b5dcb3461efef0adefe570dd8a8d966ec4 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Wed, 26 Oct 2022 23:05:31 +0200 Subject: [PATCH] bpf: check llvm version only when used unetd always includes $(INCLUDE_DIR)/bpf.mk. This file always checks if the LLVM version is supported in CLANG_VER_VALID. unetd only needs bpf when UNETD_VXLAN_SUPPORT is set. It fails when UNETD_VXLAN_SUPPORT is not set and llvm is not installed. Fix it by only checking the LLVM version when a LLVM toolchain is available. Signed-off-by: Hauke Mehrtens --- include/bpf.mk | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/bpf.mk b/include/bpf.mk index 7d0cfbd76d..e43fcad50c 100644 --- a/include/bpf.mk +++ b/include/bpf.mk @@ -63,6 +63,7 @@ BPF_CFLAGS := \ -Wno-unused-label \ -O2 -emit-llvm -Xclang -disable-llvm-passes +ifneq ($(CONFIG_HAS_BPF_TOOLCHAIN),) ifeq ($(DUMP),) CLANG_VER:=$(shell $(CLANG) -dM -E - < /dev/null | grep __clang_major__ | cut -d' ' -f3) CLANG_VER_VALID:=$(shell [ "$(CLANG_VER)" -ge "$(CLANG_MIN_VER)" ] && echo 1 ) @@ -70,6 +71,7 @@ ifeq ($(DUMP),) $(error ERROR: LLVM/clang version too old. Minimum required: $(CLANG_MIN_VER), found: $(CLANG_VER)) endif endif +endif define CompileBPF $(CLANG) -g -target $(BPF_ARCH)-linux-gnu $(BPF_CFLAGS) $(2) \ -- 2.30.2