mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2024-12-10 00:36:40 +00:00
116c73fd71
To download a package the LLVM bins are not strictly needed.
Currently with an example run of make package/bridger/download V=s, the
build fail with
make[2]: Entering directory '/home/ansuel/openwrt-ansuel/openwrt/package/network/services/bridger'
bash: line 1: /home/ansuel/openwrt-ansuel/openwrt/staging_dir/host/llvm-bpf/bin/clang: No such file or directory
bash: line 1: [: : integer expression expected
/home/ansuel/openwrt-ansuel/openwrt/include/bpf.mk:71: *** ERROR: LLVM/clang version too old. Minimum required: 12, found: . Stop.
make[2]: Leaving directory '/home/ansuel/openwrt-ansuel/openwrt/package/network/services/bridger'
time: package/network/services/bridger/download#0.04#0.00#0.06
ERROR: package/network/services/bridger failed to build.
This is wrong since it may be needed to download the required packages
first and then compile them later.
Fix this by ignoring the LLVM bin check on non compile steps.
Tested-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
86 lines
3.1 KiB
Makefile
86 lines
3.1 KiB
Makefile
BPF_DEPENDS := @HAS_BPF_TOOLCHAIN
|
|
LLVM_VER:=
|
|
|
|
CLANG_MIN_VER:=12
|
|
|
|
ifneq ($(CONFIG_USE_LLVM_HOST),)
|
|
BPF_TOOLCHAIN_HOST_PATH:=$(call qstrip,$(CONFIG_BPF_TOOLCHAIN_HOST_PATH))
|
|
ifneq ($(BPF_TOOLCHAIN_HOST_PATH),)
|
|
BPF_PATH:=$(BPF_TOOLCHAIN_HOST_PATH)/bin:$(PATH)
|
|
else
|
|
BPF_PATH:=$(PATH)
|
|
endif
|
|
CLANG:=$(firstword $(shell PATH='$(BPF_PATH)' command -v clang clang-13 clang-12 clang-11))
|
|
LLVM_VER:=$(subst clang,,$(notdir $(CLANG)))
|
|
endif
|
|
ifneq ($(CONFIG_USE_LLVM_PREBUILT),)
|
|
CLANG:=$(TOPDIR)/llvm-bpf/bin/clang
|
|
endif
|
|
ifneq ($(CONFIG_USE_LLVM_BUILD),)
|
|
CLANG:=$(STAGING_DIR_HOST)/llvm-bpf/bin/clang
|
|
endif
|
|
|
|
LLVM_PATH:=$(dir $(CLANG))
|
|
LLVM_LLC:=$(LLVM_PATH)/llc$(LLVM_VER)
|
|
LLVM_DIS:=$(LLVM_PATH)/llvm-dis$(LLVM_VER)
|
|
LLVM_OPT:=$(LLVM_PATH)/opt$(LLVM_VER)
|
|
LLVM_STRIP:=$(LLVM_PATH)/llvm-strip$(LLVM_VER)
|
|
|
|
BPF_KARCH:=mips
|
|
BPF_ARCH:=mips$(if $(CONFIG_ARCH_64BIT),64)$(if $(CONFIG_BIG_ENDIAN),,el)
|
|
BPF_TARGET:=bpf$(if $(CONFIG_BIG_ENDIAN),eb,el)
|
|
|
|
BPF_HEADERS_DIR:=$(STAGING_DIR)/bpf-headers
|
|
|
|
BPF_KERNEL_INCLUDE := \
|
|
-nostdinc -isystem $(TOOLCHAIN_DIR)/include \
|
|
-I$(BPF_HEADERS_DIR)/arch/$(BPF_KARCH)/include \
|
|
-I$(BPF_HEADERS_DIR)/arch/$(BPF_KARCH)/include/asm/mach-generic \
|
|
-I$(BPF_HEADERS_DIR)/arch/$(BPF_KARCH)/include/generated \
|
|
-I$(BPF_HEADERS_DIR)/include \
|
|
-I$(BPF_HEADERS_DIR)/arch/$(BPF_KARCH)/include/uapi \
|
|
-I$(BPF_HEADERS_DIR)/arch/$(BPF_KARCH)/include/generated/uapi \
|
|
-I$(BPF_HEADERS_DIR)/include/uapi \
|
|
-I$(BPF_HEADERS_DIR)/include/generated/uapi \
|
|
-I$(BPF_HEADERS_DIR)/tools/lib \
|
|
-I$(BPF_HEADERS_DIR)/tools/testing/selftests \
|
|
-I$(BPF_HEADERS_DIR)/samples/bpf \
|
|
-include linux/kconfig.h -include asm_goto_workaround.h
|
|
|
|
BPF_CFLAGS := \
|
|
$(BPF_KERNEL_INCLUDE) -I$(PKG_BUILD_DIR) \
|
|
-D__KERNEL__ -D__BPF_TRACING__ -DCONFIG_GENERIC_CSUM \
|
|
-D__TARGET_ARCH_${BPF_KARCH} \
|
|
-m$(if $(CONFIG_BIG_ENDIAN),big,little)-endian \
|
|
-fno-stack-protector -Wall \
|
|
-Wno-unused-value -Wno-pointer-sign \
|
|
-Wno-compare-distinct-pointer-types \
|
|
-Wno-gnu-variable-sized-type-not-at-end \
|
|
-Wno-address-of-packed-member -Wno-tautological-compare \
|
|
-Wno-unknown-warning-option \
|
|
-fno-asynchronous-unwind-tables \
|
|
-Wno-uninitialized -Wno-unused-variable \
|
|
-Wno-unused-label \
|
|
-O2 -emit-llvm -Xclang -disable-llvm-passes
|
|
|
|
ifneq ($(CONFIG_HAS_BPF_TOOLCHAIN),)
|
|
ifeq ($(DUMP)$(filter download refresh,$(MAKECMDGOALS)),)
|
|
CLANG_VER:=$(shell $(CLANG) -dM -E - < /dev/null | grep __clang_major__ | cut -d' ' -f3)
|
|
CLANG_VER_VALID:=$(shell [ "$(CLANG_VER)" -ge "$(CLANG_MIN_VER)" ] && echo 1 )
|
|
ifeq ($(CLANG_VER_VALID),)
|
|
$(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) \
|
|
-c $(1) -o $(patsubst %.c,%.bc,$(1))
|
|
$(LLVM_OPT) -O2 -mtriple=$(BPF_TARGET) < $(patsubst %.c,%.bc,$(1)) > $(patsubst %.c,%.opt,$(1))
|
|
$(LLVM_DIS) < $(patsubst %.c,%.opt,$(1)) > $(patsubst %.c,%.S,$(1))
|
|
$(LLVM_LLC) -march=$(BPF_TARGET) -mcpu=v3 -filetype=obj -o $(patsubst %.c,%.o,$(1)) < $(patsubst %.c,%.S,$(1))
|
|
$(CP) $(patsubst %.c,%.o,$(1)) $(patsubst %.c,%.debug.o,$(1))
|
|
$(LLVM_STRIP) --strip-debug $(patsubst %.c,%.o,$(1))
|
|
endef
|
|
|