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| author | Joursoir <chat@joursoir.net> | 2021-09-28 23:03:02 +0000 |
|---|---|---|
| committer | Joursoir <chat@joursoir.net> | 2021-09-28 23:03:02 +0000 |
| commit | 92456c92b6da38110df60785a563b30c7108190a (patch) | |
| tree | 3bf7485d5b009125540ddf5c155063d1ad06e67b | |
| parent | 6e52d3e6ae1d1612884d8d1533007e1d46f0c4eb (diff) | |
| download | mfsos-92456c92b6da38110df60785a563b30c7108190a.tar.gz mfsos-92456c92b6da38110df60785a563b30c7108190a.tar.bz2 mfsos-92456c92b6da38110df60785a563b30c7108190a.zip | |
x86/boot/makefile: compile two-stage bootloader
| -rw-r--r-- | arch/x86/boot/Makefile | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index 0501ab3..e026e24 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -1,27 +1,39 @@ # If you want run this makefile immediately, then set environment # variables (CC, LD, AS, OBJDUMP) to path of your cross-compiler. # -# The best way to compile bootsect.bin is to run the corresponding +# The best way to compile $BOOTBIN is to run the corresponding # target in the main Makefile, which is in the root of the # project (.../path/to/os/Makefile) -BOOTBIN = bootsect.bin +BOOTBIN = bootloader.bin .PHONY: all objdump clean all: $(BOOTBIN) -$(BOOTBIN): bootsect.o - $(CC) -T linker.ld -o $(BOOTBIN) \ +$(BOOTBIN): bootsect.bin setup.bin + cat $^ > $@ + +bootsect.bin: bootsect.o + $(CC) -Wl,--oformat binary -Ttext 0x7c00 -o $@ \ + -ffreestanding -nostdlib \ + $^ -lgcc + +setup.bin: setup.o + $(CC) -Wl,--oformat binary -Ttext 0x0200 -o $@ \ -ffreestanding -nostdlib \ $^ -lgcc -bootsect.o: bootsect.s +%.o: %.s $(AS) $< -o $@ -objdump: +objdump-bootsect: + $(OBJDUMP) -D -m i386 -b binary \ + --adjust-vma=0x7c00 -Maddr16,data16 bootsect.bin + +objdump-setup: $(OBJDUMP) -D -m i386 -b binary \ - --adjust-vma=0x7c00 -Maddr16,data16 $(BOOTBIN) + --adjust-vma=0x2000 -Maddr16,data16 setup.bin clean: - rm -rf bootsect.o $(BOOTBIN) + rm -rf bootsect.o setup.o $(BOOTBIN) |