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Makefile: some simplification

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Mathieu Maret 2021-11-04 20:26:31 +01:00
parent 2cfa67b8e2
commit 47f1d3f8ab
2 changed files with 7 additions and 6 deletions
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11
Makefile
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@ -2,11 +2,11 @@
CPPFLAGS = -MMD
AS=nasm
ASFLAGS += -f elf32
#LDFLAGS += -m32 -nostdlib -mkernel -fno-stack-protector
LDFLAGS += -m32 -nostdlib -static -fno-common -fno-use-cxa-atexit -fno-exceptions -fno-non-call-exceptions -fno-weak -fno-rtti -fno-stack-protector
LDFLAGS += -m elf_i386
CFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-pie -fno-stack-protector -fno-tree-vectorize
CXXFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-rtti -fno-pie
DEBUG_FLAGS += -g -Og -DDEBUG -fno-omit-frame-pointer -fno-inline
LIBGCC = $(shell $(CC) -print-libgcc-file-name $(CFLAGS))
QEMU_OPT += -hda disk.img
ARCH?=x86
@ -24,7 +24,7 @@ cobj=$(csrc:%.c=%.o)
deps=$(csrc:%.c=%.d) $(gasmsrc:%.S=%.d)
kernel kernel.sym &: $(asmobj) $(gasmobj) $(cobj) linker.ld
$(CC) -m32 -ffreestanding -nostdlib $(cobj) $(gasmobj) $(asmobj) -o kernel -T linker.ld -lgcc
$(LD) $(LDFLAGS) $(asmobj) $(gasmobj) $(cobj) -o kernel -T linker.ld $(LIBGCC)
objcopy --only-keep-debug kernel kernel.sym
objcopy --strip-debug kernel
@ -38,9 +38,11 @@ disk.img: disk.sfdisk
qemu-img create -f raw $@ 32M
sfdisk $@ < disk.sfdisk
# NASM without preprocessing
%.o:%.asm
$(AS) $(ASFLAGS) -o $@ $<
#GNU GAS ASM with C Preprocessing
%.o: %.S
$(CC) $(CFLAGS) $(CPPFLAGS) -c "$<" -o "$@"
@ -55,9 +57,6 @@ run:kernel disk.img
debug: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST
debug: CXXFLAGS += $(DEBUG_FLAGS)
debug:kernel kernel.sym
#qemu-system-x86_64 -s -S -kernel kernel&
#qemu-system-i386 -s -S -kernel kernel&
#gdb -s kernel.sym -ex "target remote localhost:1234" -ex "dir core:driver:arch/$(ARCH))'"
gdb -q -x debug.gdb
debug_test: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST

2
userspace/Makefile Normal file
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@ -0,0 +1,2 @@
# Used to generated .d file that deal with header dependencies
CPPFLAGS = -MMD