Move bpf-sdk to sdk/bpf
This commit is contained in:
Michael Vines
Grimes
189
sdk/bpf/bpf.mk
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189
sdk/bpf/bpf.mk
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@@ -0,0 +1,189 @@
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LOCAL_PATH := $(dir $(lastword $(MAKEFILE_LIST)))
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all:
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.PHONY: help all clean
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ifneq ($(V),1)
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_@ :=@
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endif
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INC_DIRS ?=
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SRC_DIR ?= ./src
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TEST_DIR ?= ./test
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OUT_DIR ?= ./out
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ifeq ($(DOCKER),1)
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LLVM_DIR = $(LOCAL_PATH)llvm/docker
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else
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LLVM_DIR = $(LOCAL_PATH)llvm/native-v0.0.1
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endif
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ifdef LLVM_DIR
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CC := $(LLVM_DIR)/bin/clang
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CXX := $(LLVM_DIR)/bin/clang++
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LLC := $(LLVM_DIR)/bin/llc
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OBJ_DUMP := $(LLVM_DIR)/bin/llvm-objdump
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endif
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SYSTEM_INC_DIRS := \
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$(LOCAL_PATH)inc \
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$(LLVM_DIR)lib/clang/8.0.0/include \
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C_FLAGS := \
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-Werror \
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-O2 \
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-fno-builtin \
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-std=c17 \
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$(addprefix -isystem,$(SYSTEM_INC_DIRS)) \
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$(addprefix -I,$(INC_DIRS))
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CXX_FLAGS := \
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$(C_FLAGS) \
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-std=c++17 \
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BPF_C_FLAGS := \
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$(C_FLAGS) \
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-emit-llvm \
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-target bpf \
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BPF_CXX_FLAGS := \
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$(CXX_FLAGS) \
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-emit-llvm \
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-target bpf \
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BPF_LLC_FLAGS := \
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-march=bpf \
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-filetype=obj \
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OBJ_DUMP_FLAGS := \
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-color \
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-source \
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-disassemble \
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TESTFRAMEWORK_RPATH := $(abspath $(LOCAL_PATH)criterion-v2.3.2/lib)
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TESTFRAMEWORK_FLAGS := \
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-DSOL_TEST \
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-isystem $(LOCAL_PATH)criterion-v2.3.2/include \
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-L $(LOCAL_PATH)criterion-v2.3.2/lib \
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-rpath $(TESTFRAMEWORK_RPATH) \
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-lcriterion \
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# The "-rpath" in TESTFRAMEWORK_FLAGS doesn't work in macOS so rewrite the name
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# post-link.
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# TODO: Find a better way
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MACOS_ADJUST_TEST_DYLIB := \
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$(if $(filter $(OS),Darwin),\
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$(_@)install_name_tool -change libcriterion.3.dylib $(TESTFRAMEWORK_RPATH)/libcriterion.3.dylib, \
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: \
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)
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TEST_C_FLAGS := \
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$(C_FLAGS) \
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$(TESTFRAMEWORK_FLAGS) \
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TEST_CXX_FLAGS := \
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$(CXX_FLAGS) \
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$(TESTFRAMEWORK_FLAGS) \
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help:
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@echo ''
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@echo 'BPF Program makefile'
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@echo ''
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@echo 'This makefile will build BPF Programs from C or C++ source files into ELFs'
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@echo ''
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@echo 'Assumptions:'
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@echo ' - Programs are a single .c or .cc source file (may include headers)'
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@echo ' - Programs are located in the source directory: $(SRC_DIR)'
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@echo ' - Programs are named by their basename (eg. file name:foo.c/foo.cc -> program name:foo)'
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@echo ' - Tests are located in the test directory: $(TEST_DIR)'
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@echo ' - Tests are named by their basename (eg. file name:foo.c/foo.cc -> test name:test_foo)'
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@echo ' - Output files will be placed in the directory: $(OUT_DIR)'
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@echo ''
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@echo 'User settings'
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@echo ' - The following setting are overridable on the command line, default values shown:'
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@echo ' - Show commands while building: V=1'
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@echo ' V=$(V)'
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@echo ' - Use LLVM from docker: DOCKER=1'
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@echo ' DOCKER=$(DOCKER)'
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@echo ' - List of include directories:'
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@echo ' INC_DIRS=$(INC_DIRS)'
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@echo ' - List of system include directories:'
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@echo ' SYSTEM_INC_DIRS=$(SYSTEM_INC_DIRS)'
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@echo ' - Location of source files:'
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@echo ' SRC_DIR=$(SRC_DIR)'
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@echo ' - Location of test files:'
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@echo ' TEST_DIR=$(TEST_DIR)'
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@echo ' - Location to place output files:'
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@echo ' OUT_DIR=$(OUT_DIR)'
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@echo ' - Location of LLVM:'
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@echo ' LLVM_DIR=$(LLVM_DIR)'
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@echo ''
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@echo 'Usage:'
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@echo ' - make help - This help message'
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@echo ' - make all - Build all the programs'
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@echo ' - make test - Build and run all tests'
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@echo ' - make dump_<program name> - Dumps the contents of the program to stdout'
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@echo ' - make <program name> - Build a single program by name'
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@echo ''
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@echo 'Available programs:'
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$(foreach name, $(PROGRAM_NAMES), @echo ' - $(name)'$(\n))
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@echo 'Available tests:'
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$(foreach name, $(TEST_NAMES), @echo ' - $(name)'$(\n))
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@echo ''
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@echo 'Example:'
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@echo ' - Assuming a programed named foo (src/foo.c)'
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@echo ' - make foo'
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@echo ' - make dump_foo'
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@echo ''
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.PRECIOUS: $(OUT_DIR)/%.bc
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$(OUT_DIR)/%.bc: $(SRC_DIR)/%.c
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@echo "[cc] $@ ($<)"
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$(_@)mkdir -p $(OUT_DIR)
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$(_@)$(CC) $(BPF_C_FLAGS) -o $@ -c $< -MD -MF $(@:.bc=.d)
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$(OUT_DIR)/%.bc: $(SRC_DIR)/%.cc
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@echo "[cc] $@ ($<)"
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$(_@)mkdir -p $(OUT_DIR)
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$(_@)$(CXX) $(BPF_CXX_FLAGS) -o $@ -c $< -MD -MF $(@:.bc=.d)
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.PRECIOUS: $(OUT_DIR)/%.o
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$(OUT_DIR)/%.o: $(OUT_DIR)/%.bc
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@echo "[llc] $@ ($<)"
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$(_@)$(LLC) $(BPF_LLC_FLAGS) -o $@ $<
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$(OUT_DIR)/test_%: $(TEST_DIR)/%.c
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@echo "[test cc] $@ ($<)"
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$(_@)mkdir -p $(OUT_DIR)
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$(_@)$(CC) $(TEST_C_FLAGS) -o $@ $< -MD -MF $(@:=.d)
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$(_@)$(MACOS_ADJUST_TEST_DYLIB) $@
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$(OUT_DIR)/test_%: $(TEST_DIR)/%.cc
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@echo "[test cc] $@ ($<)"
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$(_@)mkdir -p $(OUT_DIR)
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$(_@)$(CXX) $(TEST_CXX_FLAGS) -o $@ $< -MD -MF $(@:=.d)
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$(_@)$(MACOS_ADJUST_TEST_DYLIB) $@
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-include $(wildcard $(OUT_DIR)/*.d)
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PROGRAM_NAMES := $(notdir $(basename $(wildcard $(SRC_DIR)/*.c $(SRC_DIR)/*.cc)))
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TEST_NAMES := $(addprefix test_,$(notdir $(basename $(wildcard $(TEST_DIR)/*.c))))
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define \n
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endef
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all: $(PROGRAM_NAMES)
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test: $(TEST_NAMES)
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$(foreach test, $(TEST_NAMES), $(OUT_DIR)/$(test)$(\n))
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$(PROGRAM_NAMES): %: $(addprefix $(OUT_DIR)/, %.o) ;
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$(TEST_NAMES): %: $(addprefix $(OUT_DIR)/, %) ;
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dump_%: %
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$(_@)$(OBJ_DUMP) $(OBJ_DUMP_FLAGS) $(addprefix $(OUT_DIR)/, $(addsuffix .o, $<))
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clean:
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rm -rf $(OUT_DIR)
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