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Makefile: help menu and gen .i files

This commit is contained in:
Mathieu Maret 2023-11-08 21:00:31 +01:00
parent bff24b2213
commit a459111348
1 changed files with 23 additions and 6 deletions
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29
Makefile
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@ -4,6 +4,9 @@ AS=nasm
ASFLAGS += -f elf32
LDFLAGS += -m elf_i386
CFLAGS += -m32 -Wall -Wextra -Werror -ffreestanding -fno-exceptions -fno-pie -fno-stack-protector -fno-tree-vectorize -D__KERNEL__
#keep .i and .s
#CFLAGS += -save-temps
#CFLAGS += -fanalyzer -Wno-analyzer-malloc-leak -Wno-analyzer-out-of-bounds
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 $(CFLAGS))
@ -21,12 +24,13 @@ gasmsrc=$(wildcard arch/$(ARCH)/*.S arch/$(ARCH)/boot/*.S)
gasmobj=$(gasmsrc:%.S=%.o)
csrc=$(shell find $(SUBDIRS) -type f -name "*.c")# $(wildcard *.c)
cobj=$(csrc:%.c=%.o)
cinc=$(csrc:%.c=%.i)
deps=$(csrc:%.c=%.d) $(gasmsrc:%.S=%.d)
docsrc=$(wildcard docs/*.md)
docobj=$(docsrc:%.md=%.html)
kernel kernel.sym &: $(asmobj) $(gasmobj) $(cobj) linker.ld
$(LD) $(LDFLAGS) $(asmobj) $(gasmobj) $(cobj) -o kernel -T linker.ld $(LIBGCC)
$(LD) $(LDFLAGS) $(asmobj) $(gasmobj) $(cobj) -o kernel -T linker.ld $(LIBGCC) -Map kernel.map
objcopy --only-keep-debug kernel kernel.sym
objcopy --strip-debug kernel
objcopy --add-gnu-debuglink=kernel.sym kernel
@ -45,6 +49,16 @@ FORCE:
doc: $(docobj)
help: ## show this help
# regex for general help
@sed -ne "s/^##\(.*\)/\1/p" $(MAKEFILE_LIST)
# regex for makefile commands (targets)
@printf "────────────────────────`tput bold``tput setaf 2` Make Commands `tput sgr0`────────────────────────────────\n"
@sed -ne "/@sed/!s/\(^[^#?=]*:\).*##\(.*\)/`tput setaf 2``tput bold`\1`tput sgr0`\2/p" $(MAKEFILE_LIST)
# regex for makefile variables
@printf "────────────────────────`tput bold``tput setaf 4` Make Variables `tput sgr0`───────────────────────────────\n"
@sed -ne "/@sed/!s/\(.*\)?=\(.*\)##\(.*\)/`tput setaf 4``tput bold`\1:`tput setaf 5`\2`tput sgr0`\3/p" $(MAKEFILE_LIST)
disk.img: disk.sfdisk userspace
qemu-img create -f raw $@ 32M
sfdisk $@ < $<
@ -64,14 +78,17 @@ disk.img: disk.sfdisk userspace
%.html: %.md
markdown -o $@ $<
test: CFLAGS += -DRUN_TEST
%.i: %.c
$(CC) $(CFLAGS) $(CPPFLAGS) -E -c "$<" -o "$@"
test: CFLAGS += -DRUN_TEST ## Run the OS on qemu with the inner test activated
test: clean kernel disk.img
qemu-system-x86_64 -kernel kernel -serial stdio -m 32M $(QEMU_OPT)
run:kernel disk.img
qemu-system-x86_64 -kernel $< $(QEMU_OPT)
run:kernel disk.img ## Run the OS on qemu
qemu-system-x86_64 -kernel $< -serial stdio $(QEMU_OPT)
debug: CFLAGS += $(DEBUG_FLAGS)
debug: CFLAGS += $(DEBUG_FLAGS) ## Run the OS on qemu and attach a debugger to it (may need a clean befor to have the debug symbols)
debug: CXXFLAGS += $(DEBUG_FLAGS)
debug:kernel kernel.sym disk.img
gdb -q -x debug.gdb
@ -83,7 +100,7 @@ screenshot:
shutter --window=qemu -o screenshot_1.png -e && zopflipng screenshot_1.png screenshot_1.png
clean:
$(RM) kernel $(asmobj) $(gasmobj) $(cobj) $(deps) fd.iso kernel.sym $(docobj)
$(RM) kernel $(asmobj) $(gasmobj) $(cobj) $(deps) $(cinc) fd.iso kernel.sym kernel.map $(docobj)
$(RM) -r isodir
.PHONY: