debugcfe

一个很好的嵌入式linux平台下的bootloader

#!/bin/sh

#
# First use sb1250-run to generate a hardware file.
#

if [ "$1" ]; then
    OPTS="--with-swarm-pcmcia-flash-file $1"
fi

    swarm-run \
	-v \
        --sim-check-undefined \
        --add-hw flash2.m4 \
        --with-boot-flash-file cfe.srec \
        --with-boot-flash-type ram \
        --no-file \
        --with-swarm-devs \
        --with-sample-pci-devs \
        --with-swarm-ide \
        --with-swarm-ide-disk0-file disk0.dsk \
        --with-swarm-ide-disk0-size 60 \
        --with-memory-config 2x64 \
        --with-swarm-rtc-eeprom-file x1240rom.bin \
        $OPTS \
	--dump-config cfe

#
# Now add some stuff to the generated GDB script
# We add the "ss" command for single stepping instructions
# in the rom, and we get into run mode by running to the boot vector.
#

cat >>cfe.gdbscript <<EOF       
load
break *0xffffffffbfc00000
run
del
set \$pc=0xffffffffbfc00000
break *0xffffffffbfc00380
break *0xffffffffbfc00200
define ss
stepi
x/5i \$pc
end
define gomain
break __GoRelo
cont
stepi
stepi
stepi
stepi
stepi
stepi
stepi
add-symbol-file cfe 0x9fc00000+\$s8
break *(board_console_init+\$s8)
end
EOF

#
# Finally run the resulting script
#
sb1-elf-gdb --nx --command=cfe.gdbscript cfe