127 lines
5.0 KiB
Bash
127 lines
5.0 KiB
Bash
#!/bin/sh
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# progmem.sh - multi-language support low-level script
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# for examining content of progmem sections (default is progmem1)
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#
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# Input files:
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# $OUTDIR/Firmware.ino.elf
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# $OUTDIR/sketch/*.o (all object files)
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#
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# Output files:
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# text.sym
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# $PROGMEM.sym
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# $PROGMEM.lss
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# $PROGMEM.hex
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# $PROGMEM.chr
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# $PROGMEM.var
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# $PROGMEM.txt
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#
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# Program memory used
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PROGMEM=progmem$1
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if [ -z "$1" ]; then PROGMEM=progmem1; fi
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#
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# Output folder and elf file:
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OUTDIR="../../output"
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OUTELF="$OUTDIR/Firmware.ino.elf"
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#
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# AVR gcc tools used:
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OBJDUMP=C:/arduino-1.6.8/hardware/tools/avr/bin/avr-objdump.exe
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#
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#
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# Description of process:
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# 0. check input files
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# 1. remove output files
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# 2. list symbol table of section '.text' from output elf file to text.sym (sorted by address)
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# 3. list symbol table of section '.$PROGMEM' from all output object files to $PROGMEM.sym
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# 4. filter only $PROGMEM symbols from text.sym and store it back to $PROGMEM.sym with absolute address
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# 5. calculate start and stop address of section '.$PROGMEM'
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# 6. extract string data from elf file to $PROGMEM.hex
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# 7. prepare string data for character check and conversion (output to $PROGMEM.chr)
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# 8. perform character check and conversion (output to $PROGMEM.var and $PROGMEM.txt)
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#
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echo "progmem.sh started" >&2
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# (0)
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echo " progmem.sh (0) - checking input files" >&2
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if [ ! -e $OUTDIR ]; then echo "progmem.sh - file '$OUTELF' not found!" >&2; exit 1; fi
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# (1)
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echo " progmem.sh (1) - removing output files" >&2
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#remove output files if exists
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if [ -e text.sym ]; then rm text.sym; fi
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if [ -e $PROGMEM.sym ]; then rm $PROGMEM.sym; fi
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if [ -e $PROGMEM.lss ]; then rm $PROGMEM.lss; fi
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if [ -e $PROGMEM.hex ]; then rm $PROGMEM.hex; fi
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if [ -e $PROGMEM.chr ]; then rm $PROGMEM.chr; fi
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if [ -e $PROGMEM.var ]; then rm $PROGMEM.var; fi
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if [ -e $PROGMEM.txt ]; then rm $PROGMEM.txt; fi
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# (2)
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echo " progmem.sh (2) - listing symbol table of section '.text'" >&2
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#list symbols from section '.text' into file text.sym (only address, size and name)
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$OBJDUMP -t -j ".text" $OUTELF | tail -n +5 | grep -E "^[0-9a-f]{8} [gl] O" | cut -c1-9,28-36,37- | sed "/^$/d" | sort >> text.sym
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# (3)
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echo " progmem.sh (3) - listing symbol table of section '.$PROGMEM'" >&2
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#loop over all object files
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ls "$OUTDIR"/sketch/*.o | while read fn; do
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echo " processing $fn" >&2
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#list symbols from section $PROGMEM (only address, size and name)
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$OBJDUMP -t -j ".$PROGMEM" $fn 2>/dev/null | tail -n +5 | cut -c1-9,28-36,37- | sed "/^$/d" | sort >> $PROGMEM.sym
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done
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# (4)
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echo " progmem.sh (4) - filtering $PROGMEM symbols" >&2
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#create list of $PROGMEM symbol names separated by '\|'
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progmem=$(cut -c19- $PROGMEM.sym)
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progmem=$(echo $progmem | sed "s/ /\\\b\\\|\\\b/g")
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progmem='\b'$progmem'\b'
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#filter $PROGMEM symbols from section '.text' (result file will contain list sorted by absolute address)
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cat text.sym | grep $progmem > $PROGMEM.sym
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# (5)
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echo " progmem.sh (5) - calculating start and stop address" >&2
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#calculate start addres of section ".$PROGMEM"
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PROGMEM_BEG=$(head -n1 $PROGMEM.sym | while read offs size name; do echo "0x"$offs; done)
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#calculate stop addres of section ".$PROGMEM"
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PROGMEM_END=$(tail -n1 $PROGMEM.sym | while read offs size name; do printf "0x%x" $(("0x"$offs + "0x"$size)); done)
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echo " START address = "$PROGMEM_BEG >&2
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echo " STOP address = "$PROGMEM_END >&2
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# (6)
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echo " progmem.sh (6) - extracting string data from elf" >&2
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#dump $PROGMEM data in hex format, cut textual data (keep hex data only)
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$OBJDUMP -d -j ".text" -w -z --start-address=$PROGMEM_BEG --stop-address=$PROGMEM_END $OUTELF | cut -c1-57 > $PROGMEM.lss
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#convert $PROGMEM.lss to $PROGMEM.hex:
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# replace empty lines with '|' (variables separated by empty lines)
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# remove address from multiline variables (keep address at first variable line only)
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# remove '<' and '>:', remove whitespace at end of lines
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# remove line-endings, replace separator with '\n' (join hex data lines - each line will contain single variable)
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# filter progmem symbols
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cat $PROGMEM.lss | tail -n +7 | sed -E 's/^$/|/;s/^........:\t/ /;s/<//g;s/>:/ /g;s/[ \t]*$//' |\
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tr -d '\n' | sed "s/[|]/\n/g" | grep $progmem > $PROGMEM.hex
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# (7)
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echo " progmem.sh (7) - preparing string data" >&2
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#convert $PROGMEM.hex to $PROGMEM.chr (prepare string data for character check and conversion)
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# replace first space with tab
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# replace second space with tab and space
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# replace all remaining spaces with '\x'
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# replace all tabs with spaces
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cat $PROGMEM.hex | sed 's/ /\t/;s/ /\t /;s/ /\\x/g;s/\t/ /g' > $PROGMEM.chr
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# (8)
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#convert $PROGMEM.chr to $PROGMEM.var (convert data to text)
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echo " progmem.sh (8) - converting string data" >&2
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cat $PROGMEM.chr | \
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sed 's/ \\xff\\xff/ /;' | \
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sed 's/\\x22/\\\\\\x22/g;' | \
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sed 's/\\x1b/\\\\\\x1b/g;' | \
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sed 's/\\x01/\\\\\\x01/g;' | \
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sed 's/\\xf8/\\\\\\xf8/g;' | \
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sed 's/\\x00$/\\x0a/;s/^/printf "/;s/$/"/' | sh > $PROGMEM.var
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cat $PROGMEM.var | sed 's/\r/\n/g' |sed -E 's/^[0-9a-f]{8} [^ ]* //' >$PROGMEM.txt
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echo "progmem.sh finished" >&2
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exit 0 |