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rufus/res/mbr/Makefile
Pete Batard 0f57ed1684 [mbr] "Press any key to boot from USB..."
* Adds an MBR to prompt the use about USB or HDD boot
* If USB boot is not selected, an INT13h override is added to
  make the second bootable drive think it is first (0x81 -> 0x80)
* USB drive BIOS index is left unmodified
2012-03-20 02:56:34 +00:00

60 lines
1.6 KiB
Makefile

#
# This file is part of the Rufus project.
#
# Copyright (c) 2012 Pete Batard <pete@akeo.ie>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
#
OBJECTS = mbr.o
TARGET = mbr
ASM = gcc
CC = gcc
LD = ld
OBJDUMP = objdump
OBJCOPY = objcopy
CFLAGS = -m32
LDFLAGS = -nostartfile
.PHONY: all clean
all: $(TARGET).bin
clean:
@-rm -f -v *.o *.out $(TARGET).map
%.o: %.c Makefile
@echo "[CC] $@"
@$(CC) -c -o $*.o $(CFLAGS) $<
%.o: %.S Makefile
@echo "[AS] $<"
@$(ASM) -c -o $*.o $(CFLAGS) $<
# Produce a disassembly dump, for verification purposes
dis: $(TARGET).out
@echo "[DIS] $<"
@$(OBJCOPY) -O binary -j .main --set-section-flags .main=alloc,load,readonly,code $< main.bin
@$(OBJDUMP) -D -bbinary -mi8086 -Mintel main.bin | less
@-rm -f main.bin
$(TARGET).out: $(OBJECTS) $(TARGET).ld
@echo "[LD] $@"
@$(LD) $(LDFLAGS) -T$(TARGET).ld -o $@ $(OBJECTS) -Map $(TARGET).map
$(TARGET).bin: $(TARGET).out
@echo "[MBR] $@"
@# Note: -j only works for sections that have the 'ALLOC' flag set
@$(OBJCOPY) -O binary -j .main --gap-fill=0x00 $< $@