AS = as -64
# NEW PART
AS += -g
CC = gcc
GIT = git
ifeq ($(GIT),none)
GIT_AVAILABLE = false
else
GIT_AVAILABLE = true
endif
CFLAGS = -std=c11 -Wall -Wextra -Wshadow -m64 -march=x86-64 -mno-mmx -mno-sse -mno-sse2 \
-fpic -fno-builtin -ffreestanding -fomit-frame-pointer -fno-stack-protector
## NEW PART
CFLAGS += -ggdb3 -O0 -DEFI_DEBUG=1
CFLAGS += -DDEBUG
INC_DIRS = -I../boot -I../system -I../lib -I../tests -I../app -Iapp
SYS_OBJS = system/acpi.o \
system/cpuid.o \
system/cpuinfo.o \
system/cpulocal.o \
system/ehci.o \
system/font.o \
system/hwctrl.o \
system/heap.o \
system/hwquirks.o \
system/keyboard.o \
system/ohci.o \
system/pci.o \
system/pmem.o \
system/reloc.o \
system/screen.o \
system/serial.o \
system/smbios.o \
system/smbus.o \
system/smp.o \
system/temperature.o \
system/timers.o \
system/uhci.o \
system/usbhcd.o \
system/vmem.o \
system/xhci.o
LIB_OBJS = lib/barrier.o \
lib/print.o \
lib/read.o \
lib/string.o \
lib/unistd.o
TST_OBJS = tests/addr_walk1.o \
tests/bit_fade.o \
tests/block_move.o \
tests/modulo_n.o \
tests/mov_inv_fixed.o \
tests/mov_inv_random.o \
tests/mov_inv_walk1.o \
tests/own_addr.o \
tests/test_helper.o \
tests/tests.o
APP_OBJS = app/badram.o \
app/config.o \
app/display.o \
app/error.o \
app/interrupt.o \
app/main.o
OBJS = boot/startup.o boot/efisetup.o $(SYS_OBJS) $(LIB_OBJS) $(TST_OBJS) $(APP_OBJS)
all: memtest.bin memtest.efi
-include boot/efisetup.d
-include $(subst .o,.d,$(SYS_OBJS))
-include $(subst .o,.d,$(LIB_OBJS))
-include $(subst .o,.d,$(TST_OBJS))
-include $(subst .o,.d,$(APP_OBJS))
boot/%.o: boot/%.s
$(AS) $< -o $@
boot/startup.s: ../boot/startup64.S ../boot/boot.h
@mkdir -p boot
$(CC) -E -traditional -I../boot -o $@ $<
boot/%.s: ../boot/%.S ../boot/boot.h
@mkdir -p boot
$(CC) -E -traditional -I../boot -o $@ $<
boot/efisetup.o: ../boot/efisetup.c
@mkdir -p boot
$(CC) -c $(CFLAGS) -Os $(INC_DIRS) -o $@ $< -MMD -MP -MT $@ -MF $(@:.o=.d)
system/reloc.o: ../system/reloc64.c
@mkdir -p system
$(CC) -c $(CFLAGS) -fno-strict-aliasing -Os $(INC_DIRS) -o $@ $< -MMD -MP -MT $@ -MF $(@:.o=.d)
system/%.o: ../system/%.c
@mkdir -p system
$(CC) -c $(CFLAGS) -Os $(INC_DIRS) -o $@ $< -MMD -MP -MT $@ -MF $(@:.o=.d)
lib/%.o: ../lib/%.c
@mkdir -p lib
$(CC) -c $(CFLAGS) -Os $(INC_DIRS) -o $@ $< -MMD -MP -MT $@ -MF $(@:.o=.d)
tests/%.o: ../tests/%.c
@mkdir -p tests
$(CC) -c $(CFLAGS) -O3 $(INC_DIRS) -o $@ $< -MMD -MP -MT $@ -MF $(@:.o=.d)
app/%.o: ../app/%.c app/githash.h
@mkdir -p app
$(CC) -c $(CFLAGS) -Os $(INC_DIRS) -o $@ $< -MMD -MP -MT $@ -MF $(@:.o=.d)
app/githash.h: FORCE
@mkdir -p app
@( \
if $(GIT_AVAILABLE) && test -d ../.git ; then \
hash=`git rev-parse HEAD | cut -c1-7`; \
else \
hash="unknown"; \
fi; \
define=`echo "#define GIT_HASH \"$$hash\""`; \
echo $$define | diff - $@ > /dev/null 2>&1 || echo $$define > $@; \
)
FORCE:
# Link it statically once so I know I don't have undefined symbols and
# then link it dynamically so I have full relocation information.
memtest_shared: $(OBJS) ldscripts/memtest_shared.lds Makefile
$(LD) --warn-constructors --warn-common -static -T ldscripts/memtest_shared.lds -o $@ $(OBJS) && \
$(LD) -shared -Bsymbolic -T ldscripts/memtest_shared.lds -o $@ $(OBJS)
memtest_shared.bin: memtest_shared
objcopy -O binary $< memtest_shared.bin
memtest.bin: memtest_shared.bin boot/bootsect.o boot/setup.o ldscripts/memtest_bin.lds
$(eval SIZES=$(shell size -B -d memtest_shared | grep memtest_shared))
$(LD) --defsym=_bss_size=$(word 3,$(SIZES)) -T ldscripts/memtest_bin.lds boot/bootsect.o boot/setup.o -b binary memtest_shared.bin -o memtest.bin
memtest.efi: memtest_shared.bin boot/header.o boot/setup.o ldscripts/memtest_efi.lds
$(eval SIZES=$(shell size -B -d memtest_shared | grep memtest_shared))
$(LD) --defsym=_bss_size=$(word 3,$(SIZES)) -T ldscripts/memtest_efi.lds boot/header.o boot/setup.o -b binary memtest_shared.bin -o memtest.efi
memtest.mbr: memtest_shared.bin boot/mbr.o ldscripts/memtest_mbr.lds
$(LD) -T ldscripts/memtest_mbr.lds boot/mbr.o -b binary memtest_shared.bin -o memtest.mbr
floppy.img: memtest.bin
dd if=/dev/zero of=floppy.img bs=1474560 count=1
dd if=memtest.bin of=floppy.img bs=1474560 conv=notrunc
esp.img: memtest.efi
@mkdir -p iso/EFI/BOOT
cp memtest.efi iso/EFI/BOOT/bootx64.efi
@rm -f esp.img
/sbin/mkdosfs -n MEMTEST-ESP -F12 -C esp.img 4096
mcopy -s -i esp.img iso/EFI ::
memtest.iso: memtest.mbr floppy.img esp.img
@mkdir -p iso/boot
cp floppy.img iso/boot/floppy.img
xorrisofs -pad -R -J -volid MT86PLUS_64 -graft-points -hide-rr-moved --grub2-mbr memtest.mbr \
-b /boot/floppy.img --efi-boot --interval:appended_partition_2:all:: \
-part_like_isohybrid -iso_mbr_part_type 0x00 -append_partition 2 0xef ./esp.img \
-o ./memtest.iso /boot=./iso/boot /EFI=./iso/EFI
iso: memtest.iso
clean:
rm -rf boot system lib tests app *.img *.iso memtest* iso grub-*
# grub-memtest.iso can be used for testing the various different boot modes,
# using GRUB as an intermediate bootloader. Upstream GRUB only supports the
# 16-bit and 32-bit boot protocols, via the "linux16" and "linux" commands.
# Fedora add support for the EFI handover boot protocols, via the "linuxefi"
# command, and, since 2019, remove support for the 32-bit protocol, aliasing
# the "linux" command to either "linux16" or "linuxefi", depending on whether
# you boot in legacy or EFI mode. Mageia follows Fedora, but restores support
# for the 32-bit protocol, via the "linux32" command. Other distributions no
# doubt do their own thing. The boot menu on grub-memtest.iso attempts to
# support all these options.
GRUB_FONT_DIR ?= /usr/share/grub
GRUB_LIB_DIR ?= /usr/lib/grub
GRUB_MKIMAGE := $(shell command -v grub2-mkimage || command -v grub-mkimage)
GRUB_MODULES = iso9660 fat part_msdos all_video font gfxterm gfxmenu \
boot chain configfile echo ls
grub-eltorito.img:
$(GRUB_MKIMAGE) --output $@ --prefix /boot/grub --format i386-pc-eltorito biosdisk $(GRUB_MODULES)
grub-bootx64.efi:
$(GRUB_MKIMAGE) --output $@ --prefix /EFI/BOOT/grub --format x86_64-efi $(GRUB_MODULES)
grub-esp.img: memtest.efi grub-bootx64.efi ../grub/grub-efi.cfg
@mkdir -p grub-iso/EFI/BOOT/grub/x86_64-efi grub-iso/EFI/BOOT/grub/fonts
cp memtest.efi grub-iso/EFI/BOOT/memtest
cp grub-bootx64.efi grub-iso/EFI/BOOT/bootx64.efi
cp ../grub/grub-efi.cfg grub-iso/EFI/BOOT/grub/grub.cfg
cp $(GRUB_FONT_DIR)/unicode.pf2 grub-iso/EFI/BOOT/grub/fonts/
cp $(GRUB_LIB_DIR)/x86_64-efi/*.mod grub-iso/EFI/BOOT/grub/x86_64-efi/
@rm -f grub-esp.img
/sbin/mkdosfs -n MT86P_ESP -F12 -C grub-esp.img 8192
mcopy -s -i grub-esp.img grub-iso/EFI ::
grub-memtest.iso: memtest.bin grub-eltorito.img ../grub/grub-legacy.cfg grub-esp.img
@mkdir -p grub-iso/boot/grub/i386-pc grub-iso/boot/grub/fonts
cp memtest.bin grub-iso/boot/memtest
cp grub-eltorito.img grub-iso/boot/eltorito.img
cp ../grub/grub-legacy.cfg grub-iso/boot/grub/grub.cfg
cp $(GRUB_FONT_DIR)/unicode.pf2 grub-iso/boot/grub/fonts/
cp $(GRUB_LIB_DIR)/i386-pc/*.mod grub-iso/boot/grub/i386-pc/
xorrisofs -pad -R -J -volid MT86PLUS_64 -graft-points -hide-rr-moved \
--grub2-mbr $(GRUB_LIB_DIR)/i386-pc/boot_hybrid.img \
-b /boot/eltorito.img -no-emul-boot -boot-load-size 4 -boot-info-table --grub2-boot-info \
--efi-boot --interval:appended_partition_2:all:: \
-part_like_isohybrid -iso_mbr_part_type 0x00 -append_partition 2 0xef ./grub-esp.img \
-o ./grub-memtest.iso /boot=./grub-iso/boot /EFI=./grub-iso/EFI
grub-iso: grub-memtest.iso
