mirror of
https://github.com/taigrr/gopher-os
synced 2025-01-18 04:43:13 -08:00
e428d6c672
Allow "make run" and "make gdb" to be used on Linux, not just non-Linux. Allow the user to set the go binary from the commandline. Pass GOROOT in to make different Go installs use the right Go root. Check that xorriso is installed, because if it is not, grub-mkrescue will silently exit.
151 lines
4.9 KiB
Makefile
151 lines
4.9 KiB
Makefile
OS = $(shell uname -s)
|
|
ARCH := x86_64
|
|
BUILD_DIR := build
|
|
BUILD_ABS_DIR := $(CURDIR)/$(BUILD_DIR)
|
|
|
|
kernel_target :=$(BUILD_DIR)/kernel-$(ARCH).bin
|
|
iso_target := $(BUILD_DIR)/kernel-$(ARCH).iso
|
|
|
|
ifeq ($(OS), Linux)
|
|
export SHELL := /bin/bash -o pipefail
|
|
|
|
LD := ld
|
|
AS := nasm
|
|
|
|
# If your go is called something else set it on the commandline, like
|
|
# this: make run GO=go1.8
|
|
GO ?= go
|
|
GOOS := linux
|
|
GOARCH := amd64
|
|
GOROOT := $(shell $(GO) env GOROOT)
|
|
|
|
LD_FLAGS := -n -T $(BUILD_DIR)/linker.ld -static --no-ld-generated-unwind-info
|
|
AS_FLAGS := -g -f elf64 -F dwarf -I arch/$(ARCH)/asm/
|
|
|
|
MIN_OBJCOPY_VERSION := 2.26.0
|
|
HAVE_VALID_OBJCOPY := $(shell objcopy -V | head -1 | awk -F ' ' '{print "$(MIN_OBJCOPY_VERSION)\n" $$NF}' | sort -ct. -k1,1n -k2,2n && echo "y")
|
|
|
|
asm_src_files := $(wildcard arch/$(ARCH)/asm/*.s)
|
|
asm_obj_files := $(patsubst arch/$(ARCH)/asm/%.s, $(BUILD_DIR)/arch/$(ARCH)/asm/%.o, $(asm_src_files))
|
|
|
|
.PHONY: kernel iso clean binutils_version_check
|
|
|
|
kernel: binutils_version_check $(kernel_target)
|
|
|
|
$(kernel_target): $(asm_obj_files) linker_script go.o
|
|
@echo "[$(LD)] linking kernel-$(ARCH).bin"
|
|
@$(LD) $(LD_FLAGS) -o $(kernel_target) $(asm_obj_files) $(BUILD_DIR)/go.o
|
|
|
|
go.o:
|
|
@mkdir -p $(BUILD_DIR)
|
|
|
|
@echo "[go] compiling go sources into a standalone .o file"
|
|
@GOARCH=$(GOARCH) GOOS=$(GOOS) $(GO) build -n 2>&1 | sed \
|
|
-e "1s|^|set -e\n|" \
|
|
-e "1s|^|export GOOS=$(GOOS)\n|" \
|
|
-e "1s|^|export GOARCH=$(GOARCH)\n|" \
|
|
-e "1s|^|export GOROOT=$(GOROOT)\n|" \
|
|
-e "1s|^|WORK='$(BUILD_ABS_DIR)'\n|" \
|
|
-e "1s|^|alias pack='$(GO) tool pack'\n|" \
|
|
-e "/^mv/d" \
|
|
-e "s|-extld|-tmpdir='$(BUILD_ABS_DIR)' -linkmode=external -extldflags='-nostartfiles -nodefaultlibs -nostdlib -r' -extld|g" \
|
|
| sh 2>&1 | sed -e "s/^/ | /g"
|
|
|
|
@# build/go.o is a elf32 object file but all go symbols are unexported. Our
|
|
@# asm entrypoint code needs to know the address to 'main.main' so we use
|
|
@# objcopy to make that symbol exportable. Since nasm does not support externs
|
|
@# with slashes we create a global symbol alias for kernel.Kmain
|
|
@echo "[objcopy] creating global symbol alias 'kernel.Kmain' for 'github.com/achilleasa/gopher-os/kernel.Kmain' in go.o"
|
|
@objcopy \
|
|
--add-symbol kernel.Kmain=.text:0x`nm $(BUILD_DIR)/go.o | grep "kmain.Kmain$$" | cut -d' ' -f1` \
|
|
$(BUILD_DIR)/go.o $(BUILD_DIR)/go.o
|
|
|
|
binutils_version_check:
|
|
@echo "[binutils] checking that installed objcopy version is >= $(MIN_OBJCOPY_VERSION)"
|
|
@if [ "$(HAVE_VALID_OBJCOPY)" != "y" ]; then echo "[binutils] error: a more up to date binutils installation is required" ; exit 1 ; fi
|
|
|
|
xorriso_check:
|
|
@if xorriso --version >/dev/null 2>&1; then exit 0; else echo "Install xorriso via 'sudo apt install xorriso'." ; exit 1 ; fi
|
|
|
|
linker_script:
|
|
@echo "[sed] extracting LMA and VMA from constants.inc"
|
|
@echo "[gcc] pre-processing arch/$(ARCH)/script/linker.ld.in"
|
|
@gcc `cat arch/$(ARCH)/asm/constants.inc | sed -e "/^$$/d; /^;/d; s/^/-D/g; s/\s*equ\s*/=/g;" | tr '\n' ' '` \
|
|
-E -x \
|
|
c arch/$(ARCH)/script/linker.ld.in | grep -v "^#" > $(BUILD_DIR)/linker.ld
|
|
|
|
$(BUILD_DIR)/arch/$(ARCH)/asm/%.o: arch/$(ARCH)/asm/%.s
|
|
@mkdir -p $(shell dirname $@)
|
|
@echo "[$(AS)] $<"
|
|
@$(AS) $(AS_FLAGS) $< -o $@
|
|
|
|
iso: $(iso_target)
|
|
|
|
$(iso_target): xorriso_check $(kernel_target)
|
|
@echo "[grub] building ISO kernel-$(ARCH).iso"
|
|
|
|
@mkdir -p $(BUILD_DIR)/isofiles/boot/grub
|
|
@cp $(kernel_target) $(BUILD_DIR)/isofiles/boot/kernel.bin
|
|
@cp arch/$(ARCH)/script/grub.cfg $(BUILD_DIR)/isofiles/boot/grub
|
|
@grub-mkrescue -o $(iso_target) $(BUILD_DIR)/isofiles 2>&1 | sed -e "s/^/ | /g"
|
|
@rm -r $(BUILD_DIR)/isofiles
|
|
|
|
else
|
|
VAGRANT_SRC_FOLDER = /home/vagrant/workspace/src/github.com/achilleasa/gopher-os
|
|
|
|
.PHONY: kernel iso vagrant-up vagrant-down vagrant-ssh run gdb clean
|
|
|
|
kernel:
|
|
vagrant ssh -c 'cd $(VAGRANT_SRC_FOLDER); make kernel'
|
|
|
|
iso:
|
|
vagrant ssh -c 'cd $(VAGRANT_SRC_FOLDER); make iso'
|
|
|
|
endif
|
|
|
|
run: iso
|
|
qemu-system-$(ARCH) -cdrom $(iso_target)
|
|
|
|
gdb: iso
|
|
qemu-system-$(ARCH) -M accel=tcg -s -S -cdrom $(iso_target) &
|
|
sleep 1
|
|
gdb \
|
|
-ex 'add-auto-load-safe-path $(pwd)' \
|
|
-ex 'set disassembly-flavor intel' \
|
|
-ex 'layout asm' \
|
|
-ex 'set arch i386:intel' \
|
|
-ex 'file $(kernel_target)' \
|
|
-ex 'target remote localhost:1234' \
|
|
-ex 'set arch i386:x86-64:intel'
|
|
@killall qemu-system-$(ARCH) || true
|
|
|
|
clean:
|
|
@test -d $(BUILD_DIR) && rm -rf $(BUILD_DIR) || true
|
|
|
|
lint: lint-check-deps
|
|
@echo "[gometalinter] linting sources"
|
|
@gometalinter.v1 \
|
|
--disable-all \
|
|
--enable=deadcode \
|
|
--enable=errcheck \
|
|
--enable=gosimple \
|
|
--enable=ineffassign \
|
|
--enable=misspell \
|
|
--enable=staticcheck \
|
|
--enable=vet \
|
|
--enable=vetshadow \
|
|
--enable=unconvert \
|
|
--enable=varcheck \
|
|
--enable=golint \
|
|
--deadline 300s \
|
|
--exclude 'return value not checked' \
|
|
--exclude 'possible misuse of unsafe.Pointer' \
|
|
./...
|
|
|
|
lint-check-deps:
|
|
@$(GO) get -u gopkg.in/alecthomas/gometalinter.v1
|
|
@gometalinter.v1 --install >/dev/null
|
|
|
|
test:
|
|
$(GO) test -cover ./...
|