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Added build system and some core boot files

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This commit is contained in:
max 🍓
2022-12-13 20:21:28 +00:00
parent a54e2eaabc
commit 3402207602
10 changed files with 472 additions and 40 deletions
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21
arch/x86_64/extra.mk Normal file
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QEMU := qemu-system-x86_64
ARCH_TEMP_FILES := $(BUILDDIR)/$(KERNEL_EXEC).elf32
# qemu refuses to boot ELF64 binaries. this creates a patched version of the kernel
# binary to trick qemu into thinking its an ELF32.
# this has no effect on the kernel itself; the x86_64 kernel's
# entry point is 32-bit machine code.
$(BUILDDIR)/$(KERNEL_EXEC).elf32: $(BUILDDIR)/$(KERNEL_EXEC)
@cp $(BUILDDIR)/$(KERNEL_EXEC) $(BUILDDIR)/$(KERNEL_EXEC).elf32
@printf '\x03\x00' | dd of=$(BUILDDIR)/$(KERNEL_EXEC).elf32 bs=1 seek=18 count=2 conv=notrunc 2> /dev/null
run: $(BUILDDIR)/$(KERNEL_EXEC) $(BUILDDIR)/$(KERNEL_EXEC).elf32
@echo " \033[1;93mBOOT\033[0m $<"
@$(QEMU) -kernel $(BUILDDIR)/$(KERNEL_EXEC).elf32
debug: $(BUILDDIR)/$(KERNEL_EXEC) $(BUILDDIR)/$(KERNEL_EXEC).elf32
@echo " \033[1;93mBOOT\033[0m $<"
@$(QEMU) -kernel $(BUILDDIR)/$(KERNEL_EXEC).elf32 -S -s