uv-k5-firmware/gen-overlay-symbols.sh
2023-08-09 16:06:51 +01:00

68 lines
1.2 KiB
Bash
Executable File

#!/bin/bash
usage()
{
echo "$0 <ELF> <ASM>"
exit 1
}
if [ "x$1" == "x" ]
then
usage
return 1
fi
if [ "x$2" == "x" ]
then
usage
return 1
fi
echo "# .text section" > "$2"
echo "" >> "$2"
arm-none-eabi-nm -g "$1" | grep " T " | sort |
while read SYM
do
ADDR=$(echo $SYM | cut -f 1 -d " ")
FUNC=$(echo $SYM | cut -f 3 -d " ")
echo ".global $FUNC" >> "$2"
if [ "$FUNC" = "overlay_text_start" ] || [ "$FUNC" = "overlay_text_end" ]
then
echo "$FUNC = 0x$ADDR;" >> "$2"
else
echo "$FUNC:" >> "$2"
echo "push {r4, lr}" >> "$2"
echo "ldr r4, =(0x$ADDR + 1)" >> "$2"
echo "blx r4" >> "$2"
echo "pop {r4, pc}" >> "$2"
fi
echo "" >> "$2"
done
echo "# .bss section" >> "$2"
echo "" >> "$2"
arm-none-eabi-nm -g sram-overlay | grep " B " | sort |
while read SYM
do
ADDR=$(echo $SYM | cut -f 1 -d " ")
DATA=$(echo $SYM | cut -f 3 -d " ")
echo ".global $DATA" >> "$2"
echo "$DATA = 0x$ADDR;" >> "$2"
echo "" >> "$2"
done
echo "# .data section" >> "$2"
echo "" >> "$2"
arm-none-eabi-nm -g sram-overlay | grep " D " | sort |
while read SYM
do
ADDR=$(echo $SYM | cut -f 1 -d " ")
DATA=$(echo $SYM | cut -f 3 -d " ")
echo ".global $DATA" >> "$2"
echo "$DATA = 0x$ADDR;" >> "$2"
echo "" >> "$2"
done