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2dd538b7cb
* We distractedly chose to populate the message from our protective MBR for GPT/UEFI-only boot media into the 4KB that directly followed the MBR, which of course is space that is being used by the primary GPT. * This resulted on systems having to fall back to using the secondary GPT, which not all appear to be designed to do. * Alter the code to ensure the protective message is written at LBA 34, after the primary GPT. * Closes #1507
70 lines
2 KiB
Makefile
70 lines
2 KiB
Makefile
#
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# This file is part of the Rufus project.
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#
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# Copyright (c) 2012 Pete Batard <pete@akeo.ie>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation, either version 3 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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#
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TEST_TARGET = msg
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ASM = gcc
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CC = gcc
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LD = ld
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OBJDUMP = objdump
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OBJCOPY = objcopy
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CFLAGS = -m32
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LDFLAGS = -nostartfile
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BOCHS = "C:/Program Files/Bochs/bochsdbg.exe"
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.PHONY: all clean
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all: mbr.bin msg.bin
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clean:
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@-rm -f -v *.o *.out *.map *.bin *.img *.ini
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%.o: %.c Makefile
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@echo "[CC] $@"
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@$(CC) -c -o $*.o $(CFLAGS) $<
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%.o: %.S Makefile
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@echo "[AS] $<"
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@$(ASM) -c -o $*.o $(CFLAGS) $<
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# Produce a disassembly dump, for verification purposes
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dis: $(TEST_TARGET).out
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@echo "[DIS] $<"
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@$(OBJCOPY) -O binary -j .main --set-section-flags .main=alloc,load,readonly,code $< main.bin
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@$(OBJDUMP) -D -bbinary -mi8086 -Mintel main.bin | less
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@-rm -f main.bin
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# Run the MBR in a Bochs environment (append msg.txt in subsequent blocks)
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test: $(TEST_TARGET).bin
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@test -s $(BOCHS) || { echo "Error: $(BOCHS) was not found on this system"; exit 1; }
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@cp $(TEST_TARGET).bin disk.img
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@truncate -c -s 17K disk.img
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@cat msg.txt >> disk.img
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@truncate -c -s 10M disk.img
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@-$(BOCHS) -f bochsrc.bxrc -q
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%.out: %.o mbr.ld
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@echo "[LD] $@"
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@$(LD) $(LDFLAGS) -Tmbr.ld -o $@ $< -Map $*.map
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%.bin: %.out
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@echo "[MBR] $@"
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@# Note: -j only works for sections that have the 'ALLOC' flag set
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@$(OBJCOPY) -O binary -j .main --gap-fill=0x00 $< $@
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@-rm -f $< $*.map
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