build: Make build system more flexible to use when using the host toolchain
This commit is contained in:
mintsuki
parent
7e5b809a7e
commit
543edfa0b3
20
Makefile
20
Makefile
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@ -1,14 +1,24 @@
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CC = cc
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PREFIX = /usr/local
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DESTDIR =
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PATH := $(shell pwd)/toolchain/bin:$(PATH)
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SHELL := env PATH=$(PATH) /bin/bash
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TOOLCHAIN = x86_64-elf
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TOOLCHAIN_CC = $(TOOLCHAIN)-gcc
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AR = $(TOOLCHAIN)-ar
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OBJCOPY = $(TOOLCHAIN)-objcopy
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TOOLCHAIN_AR = $(TOOLCHAIN)-ar
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PATH := $(shell pwd)/toolchain/bin:$(PATH)
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ifeq ($(shell which $(TOOLCHAIN_CC)), )
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TOOLCHAIN_CC := gcc
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endif
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ifeq ($(shell which $(TOOLCHAIN_AR)), )
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TOOLCHAIN_AR := ar
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endif
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ifneq ($(shell $(TOOLCHAIN_CC) -dumpmachine | head -c 6), x86_64)
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$(error No suitable x86_64 GCC compiler found, please install an x86_64 GCC toolchain or run "make toolchain")
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endif
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STAGE1_FILES := $(shell find -L ./stage1 -type f -name '*.asm' | sort)
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@ -100,7 +110,7 @@ toolchain:
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gnu-efi:
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git clone https://git.code.sf.net/p/gnu-efi/code --branch=3.0.13 --depth=1 $@
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$(MAKE) -C gnu-efi/gnuefi CC="$(TOOLCHAIN_CC) -m64" AR="$(AR)"
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$(MAKE) -C gnu-efi/gnuefi CC="$(TOOLCHAIN_CC) -m64" AR="$(TOOLCHAIN_AR)"
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$(MAKE) -C gnu-efi/lib CC="$(TOOLCHAIN_CC) -m64" ARCH=x86_64 x86_64/efi_stub.o
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ovmf:
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34
README.md
34
README.md
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@ -32,13 +32,13 @@ such as Long Mode, 5-level paging, and SMP (multicore), to name a few.
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For convenience, for point releases, binaries are distributed. These binaries are
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shipped in the `-binary` branches and tags of this repository (see [branches](https://github.com/limine-bootloader/limine/branches/all) and [tags](https://github.com/limine-bootloader/limine/tags)).
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For example, to clone the latest binary release of the `v2.0` branch one can do
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For example, to clone the latest binary release of the `v2.x` branch one can do
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```bash
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git clone https://github.com/limine-bootloader/limine.git --branch=v2.0-branch-binary --depth=1
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```
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or, to clone a specific binary point release (for example v2.0.1)
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or, to clone a specific binary point release (for example v2.1.6)
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```bash
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git clone https://github.com/limine-bootloader/limine.git --branch=v2.0.1-binary --depth=1
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git clone https://github.com/limine-bootloader/limine.git --branch=v2.1.6-binary --depth=1
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```
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Additionally, the absolute latest Limine binary release can be obtained by fetching
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@ -52,23 +52,39 @@ rebuild `limine-install`, simply use `make` in the binary release.
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## Building the bootloader
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*These steps are not necessary if cloning a binary release. if so, skip to the*
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*next paragraph.*
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*These steps are not necessary if cloning a binary release. if so, skip to*
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*"Installing Limine binaries".*
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It is necessary to first build the set of tools that the bootloader needs
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in order to be built.
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### Building the toolchain
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This can be accomplished by running:
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This step can take a long time, but it will ensure that the compiler will work with
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Limine. If on an x86_64 host, with GCC installed, you can also skip to the next
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paragraph.
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The toolchain building process depends on the following packages: `wget`, `gcc`,
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`g++`, `binutils`.
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Building the toolchain can be accomplished by running:
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```bash
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make toolchain
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```
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*The above step may take a while*
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After that is done, the bootloader itself can be built with:
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### Building Limine
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In order to build Limine, the following packages have to be installed: `git`,
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`nasm`, `mtools`. Furthermore, either the toolchain must have been built in the
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previous paragraph, or `gcc` and `binutils` must also be installed.
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The bootloader can then be built with:
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```bash
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make
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```
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It is possible to pass `make` additional flags, most relevantly, `TOOLCHAIN=` which
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allows one to specify an alternative toolchain for the build system to use
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(the default is `x86_64-elf`, falling back to no-triple, or host, toolchain).
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The generated bootloader files are going to be in `bin`.
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## Installing Limine binaries
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@ -6,8 +6,15 @@ endif
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TOOLCHAIN = x86_64-elf
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CC = $(TOOLCHAIN)-gcc
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OBJCOPY = $(TOOLCHAIN)-objcopy
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TOOLCHAIN_CC = $(TOOLCHAIN)-gcc
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TOOLCHAIN_OBJCOPY = $(TOOLCHAIN)-objcopy
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ifeq ($(shell which $(TOOLCHAIN_CC)), )
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TOOLCHAIN_CC := gcc
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endif
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ifeq ($(shell which $(OBJCOPY)), )
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TOOLCHAIN_OBJCOPY := objcopy
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endif
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CFLAGS = -flto -Os -pipe -Wall -Wextra -Werror
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@ -55,13 +62,13 @@ builddir:
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for i in $(OBJ); do mkdir -p `dirname $$i`; done
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$(BUILDDIR)/decompressor.bin: $(OBJ)
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$(CC) $(OBJ) $(LDFLAGS) $(INTERNAL_LDFLAGS) -o $(BUILDDIR)/decompressor.elf
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$(OBJCOPY) -O binary $(BUILDDIR)/decompressor.elf $@
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$(TOOLCHAIN_CC) $(OBJ) $(LDFLAGS) $(INTERNAL_LDFLAGS) -o $(BUILDDIR)/decompressor.elf
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$(TOOLCHAIN_OBJCOPY) -O binary $(BUILDDIR)/decompressor.elf $@
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-include $(HEADER_DEPS)
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$(BUILDDIR)/%.o: %.c
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$(CC) $(CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
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$(TOOLCHAIN_CC) $(CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
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$(BUILDDIR)/%.o: %.asm
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nasm $< -f elf32 -o $@
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@ -1,7 +1,9 @@
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CC = cc
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OBJCOPY = objcopy
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PREFIX = /usr/local
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DESTDIR =
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OBJCOPY = objcopy
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OBJCOPY_ARCH = default
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LIMINE_HDD_BIN = limine-hdd.bin
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BUILD_DIR = $(shell realpath .)
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@ -15,10 +15,23 @@ endif
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TOOLCHAIN = x86_64-elf
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CC = $(TOOLCHAIN)-gcc
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OBJCOPY = $(TOOLCHAIN)-objcopy
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OBJDUMP = $(TOOLCHAIN)-objdump
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READELF = $(TOOLCHAIN)-readelf
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TOOLCHAIN_CC = $(TOOLCHAIN)-gcc
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TOOLCHAIN_OBJCOPY = $(TOOLCHAIN)-objcopy
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TOOLCHAIN_OBJDUMP = $(TOOLCHAIN)-objdump
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TOOLCHAIN_READELF = $(TOOLCHAIN)-readelf
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ifeq ($(shell which $(TOOLCHAIN_CC)), )
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TOOLCHAIN_CC := gcc
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endif
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ifeq ($(shell which $(TOOLCHAIN_OBJCOPY)), )
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TOOLCHAIN_OBJCOPY := objcopy
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endif
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ifeq ($(shell which $(TOOLCHAIN_OBJDUMP)), )
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TOOLCHAIN_OBJDUMP := objdump
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endif
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ifeq ($(shell which $(TOOLCHAIN_READELF)), )
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TOOLCHAIN_READELF := readelf
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endif
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COM_OUTPUT = false
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E9_OUTPUT = false
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@ -134,11 +147,11 @@ $(BUILDDIR)/sys/smp_trampoline.bin: sys/smp_trampoline.real
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$(BUILDDIR)/sys/smp_trampoline.o: $(BUILDDIR)/sys/smp_trampoline.bin
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cd "`dirname $<`" && \
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$(OBJCOPY) -B i8086 -I binary -O $(OBJCOPY_ARCH) "`basename $<`" $@
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$(TOOLCHAIN_OBJCOPY) -B i8086 -I binary -O $(OBJCOPY_ARCH) "`basename $<`" $@
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$(BUILDDIR)/font.o: font.bin
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cd "`dirname $<`" && \
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$(OBJCOPY) -B i8086 -I binary -O $(OBJCOPY_ARCH) "`basename $<`" $@
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$(TOOLCHAIN_OBJCOPY) -B i8086 -I binary -O $(OBJCOPY_ARCH) "`basename $<`" $@
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ifeq ($(TARGET), bios)
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@ -146,34 +159,34 @@ $(BUILDDIR)/stage2.bin.gz: $(BUILDDIR)/stage2.bin
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gzip -n -9 < $< > $@
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$(BUILDDIR)/stage2.bin: $(BUILDDIR)/limine.sys
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dd if=$< bs=$$(( 0x$$($(READELF) -S $(BUILDDIR)/limine.elf | grep .stage3.text | sed 's/^.*] //' | awk '{print $$3}' | sed 's/^0*//') - 0x8000 )) count=1 of=$@
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dd if=$< bs=$$(( 0x$$($(TOOLCHAIN_READELF) -S $(BUILDDIR)/limine.elf | grep .stage3.text | sed 's/^.*] //' | awk '{print $$3}' | sed 's/^0*//') - 0x8000 )) count=1 of=$@
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$(BUILDDIR)/stage2.map.o: $(BUILDDIR)/limine_stage2only.elf
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GENSYMS="`pwd`/gensyms.sh" && \
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cd "`dirname $<`" && \
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"$$GENSYMS" $(OBJDUMP) $< stage2 32
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"$$GENSYMS" $(TOOLCHAIN_OBJDUMP) $< stage2 32
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$(BUILDDIR)/full.map.o: $(BUILDDIR)/limine_nomap.elf
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GENSYMS="`pwd`/gensyms.sh" && \
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cd "`dirname $<`" && \
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"$$GENSYMS" $(OBJDUMP) $< full 32
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"$$GENSYMS" $(TOOLCHAIN_OBJDUMP) $< full 32
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$(BUILDDIR)/limine.sys: $(BUILDDIR)/limine.elf
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$(OBJCOPY) -O binary $< $@
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$(TOOLCHAIN_OBJCOPY) -O binary $< $@
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$(BUILDDIR)/limine_stage2only.elf: $(OBJ)
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$(CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_stage2only.ld -o $@ || \
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$(TOOLCHAIN_CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_stage2only.ld -o $@ || \
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( echo "This error means that stage 2 was trying to use stage 3 symbols before loading stage 3" && \
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false )
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$(BUILDDIR)/limine_nomap.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o $(BUILDDIR)/stage2.map.o
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$(CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_nomap.ld -o $@
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$(TOOLCHAIN_CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_nomap.ld -o $@
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$(BUILDDIR)/limine.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o $(BUILDDIR)/stage2.map.o $(BUILDDIR)/full.map.o
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$(CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker.ld -o $@
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$(TOOLCHAIN_CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker.ld -o $@
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$(BUILDDIR)/limine_dbg.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o $(BUILDDIR)/stage2.map.o $(BUILDDIR)/full.map.o
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$(CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_dbg.ld -o $@
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$(TOOLCHAIN_CC) $^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -Tlinker_dbg.ld -o $@
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endif
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@ -182,13 +195,13 @@ ifeq ($(TARGET), uefi)
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$(BUILDDIR)/full.map.o: $(BUILDDIR)/limine_efi_nomap.elf
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GENSYMS="`pwd`/gensyms.sh" && \
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cd "`dirname $<`" && \
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"$$GENSYMS" $(OBJDUMP) $< full 64
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"$$GENSYMS" $(TOOLCHAIN_OBJDUMP) $< full 64
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$(BUILDDIR)/BOOTX64.EFI: $(BUILDDIR)/limine_efi.elf
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$(OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j .rel.* -j .rela.* -j .reloc --target efi-app-x86_64 --subsystem=10 $< $@
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$(TOOLCHAIN_OBJCOPY) -j .text -j .sdata -j .data -j .dynamic -j .dynsym -j .rel -j .rela -j .rel.* -j .rela.* -j .reloc --target efi-app-x86_64 --subsystem=10 $< $@
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$(BUILDDIR)/limine_efi_nomap.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o
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$(CC) \
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$(TOOLCHAIN_CC) \
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-Tlinker_uefi_nomap.ld \
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../gnu-efi/gnuefi/crt0-efi-x86_64.o \
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../gnu-efi/gnuefi/libgnuefi.a \
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@ -196,7 +209,7 @@ $(BUILDDIR)/limine_efi_nomap.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_
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$^ $(LDFLAGS) $(INTERNAL_LDFLAGS) -o $@
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$(BUILDDIR)/limine_efi.elf: $(OBJ) $(BUILDDIR)/font.o $(BUILDDIR)/sys/smp_trampoline.o $(BUILDDIR)/full.map.o
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$(CC) \
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$(TOOLCHAIN_CC) \
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-Tlinker_uefi.ld \
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../gnu-efi/gnuefi/crt0-efi-x86_64.o \
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../gnu-efi/gnuefi/libgnuefi.a \
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@ -208,21 +221,21 @@ endif
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-include $(HEADER_DEPS)
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$(BUILDDIR)/%.o: %.c
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$(CC) $(CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
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$(TOOLCHAIN_CC) $(CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
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-include $(HEADER_DEPS)
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ifeq ($(TARGET), bios)
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$(BUILDDIR)/%.s2.o: %.s2.c
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$(CC) $(S2CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
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$(TOOLCHAIN_CC) $(S2CFLAGS) $(INTERNAL_CFLAGS) -c $< -o $@
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endif
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-include $(HEADER_DEPS)
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ifeq ($(TARGET), uefi)
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$(BUILDDIR)/%.32.o: %.32.c
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$(CC) $(CFLAGS) $(INTERNAL_CFLAGS32) -c $< -o $@.32
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$(OBJCOPY) -I elf32-i386 -O elf64-x86-64 $@.32 $@
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$(TOOLCHAIN_CC) $(CFLAGS) $(INTERNAL_CFLAGS32) -c $< -o $@.32
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$(TOOLCHAIN_OBJCOPY) -I elf32-i386 -O elf64-x86-64 $@.32 $@
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rm $@.32
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endif
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