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Added a build rule to generate compile_commands.json

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max 🍓
2022-12-21 08:27:32 +00:00
parent 38202e5ccd
commit f59d67435d
2 changed files with 93 additions and 12 deletions
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56
Makefile
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@@ -2,49 +2,81 @@ KERNEL_EXEC := socks_kernel
ARCH := x86_64
MAKEFILE_PATH := $(abspath $(lastword $(MAKEFILE_LIST)))
ROOT_DIR := $(patsubst %/,%,$(dir $(MAKEFILE_PATH)))
include tools/make/gcc-cross-compile.mk
include arch/$(ARCH)/config.mk
BUILDDIR := build
BUILD_DIR := build
####################################
# Architecture-specific source files
####################################
ARCH_C_FILES := $(wildcard arch/$(ARCH)/*.c)
ARCH_ASM_FILES := $(wildcard arch/$(ARCH)/*.S)
ARCH_OBJ := $(addprefix $(BUILDDIR)/,$(ARCH_C_FILES:.c=.o) $(ARCH_ASM_FILES:.S=.o))
ARCH_OBJ := $(addprefix $(BUILD_DIR)/,$(ARCH_C_FILES:.c=.o) $(ARCH_ASM_FILES:.S=.o))
SRC_DIRS := core
KERNEL_C_FILES := $(foreach dir,$(SRC_DIRS),$(wildcard $(dir)/*.c))
KERNEL_OBJ := $(addprefix $(BUILDDIR)/,$(KERNEL_C_FILES:.c=.o))
####################################
# Platform-independent kernel source files
####################################
KERNEL_SRC_DIRS := init kernel
KERNEL_C_FILES := $(foreach dir,$(KERNEL_SRC_DIRS),$(wildcard $(dir)/*.c))
KERNEL_OBJ := $(addprefix $(BUILD_DIR)/,$(KERNEL_C_FILES:.c=.o))
####################################
# Kernel libc source files
####################################
LIBC_SRC_DIRS := stdio string ctype
LIBC_C_FILES := $(foreach dir,$(LIBC_SRC_DIRS),$(wildcard libc/$(dir)/*.c))
LIBC_OBJ := $(addprefix $(BUILD_DIR)/,$(LIBC_C_FILES:.c=.o))
BUILD_ID := $(shell tools/generate_build_id.py --arch $(ARCH))
CFLAGS := $(CFLAGS) -DBUILD_ID=\"$(BUILD_ID)\" -g
CFLAGS := $(CFLAGS) -DBUILD_ID=\"$(BUILD_ID)\" -g \
"-I$(ROOT_DIR)/include" "-I$(ROOT_DIR)/arch/$(ARCH)/include" "-I$(ROOT_DIR)/libc/include"
ASMFLAGS := $(ASMFLAGS) -DBUILD_ID=\"$(BUILD_ID)\"
LDFLAGS := $(LDFLAGS) -g
$(BUILDDIR)/$(KERNEL_EXEC): $(KERNEL_OBJ) $(ARCH_OBJ)
ALL_KERNEL_OBJECT_FILES := $(KERNEL_OBJ) $(ARCH_OBJ) $(LIBC_OBJ)
$(BUILD_DIR)/$(KERNEL_EXEC): $(ALL_KERNEL_OBJECT_FILES)
@echo " \033[1;36mLINK\033[0m \033[1m$@\033[0m"
@mkdir -p $(@D)
@$(LD) $^ -o $@ $(LDFLAGS) $(ARCH_LDFLAGS)
$(BUILDDIR)/%.o: %.S
$(BUILD_DIR)/%.o: %.S
@echo " \033[1;32mASM\033[0m $<"
@mkdir -p $(@D)
@$(ASM) $< -o $@ -c $(ASMFLAGS) $(ARCH_ASMFLAGS)
$(BUILDDIR)/%.o: %.c
$(BUILD_DIR)/%.o: %.c
@echo " \033[1;32mCC\033[0m $<"
@mkdir -p $(@D)
@$(CC) $< -o $@ -c $(CFLAGS) $(ARCH_CFLAGS)
clean:
@echo " \033[1;93mCLEAN\033[0m Deleting build artefacts."
@rm -rf $(BUILDDIR)
@rm -rf $(BUILD_DIR)
all: $(BUILDDIR)/$(KERNEL_EXEC)
all: $(BUILD_DIR)/$(KERNEL_EXEC)
$(BUILD_DIR)/compile_commands.json:
@$(MAKE) clean
@echo " \033[1;93mGEN\033[0m Generating compiler database."
@./tools/make/generate_compile_commands.py
compile-db: $(BUILD_DIR)/compile_commands.json
include arch/$(ARCH)/extra.mk
.PHONY: all
.PHONY: all compile-db
.INTERMEDIATE: $(ARCH_TEMP_FILES)