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#!/bin/sh
# Generates the YUP commands for DMBootloader for erasing random pages
MIN_PAGE=1
MAX_PAGE=992
PAGE_COUNT=16
OUTDIR=4_erase_random_pages
MEMIMAGE=3_cmd_read_all_pages/memory_image
tmp_cmd=${OUTDIR}/0_erase
mkdir $tmp_cmd
cp $MEMIMAGE $tmp_cmd
for i in $(seq 1 $PAGE_COUNT); do
# The same page numbers can possibly be generated
virtual_page=$(( $RANDOM % $MAX_PAGE ))
d=${OUTDIR}/${i}_erase
mkdir ${d}
o=${d}/1_cmd
r=${d}/1_reply
m_base=${OUTDIR}/$(( $i - 1 ))_erase/memory_image
m=${d}/memory_image
# Generate erase command and gradually construct images of virtual
# address space with the random pages erased
./create_dmbootloader_cmd.sh erase $virtual_page $o
# Each Erase command must complete with success
printf '\x00' >$r
# Memory image for this Erase command will be based on the memory image for the previous command
cp $m_base $m
{ dd if=/dev/zero bs=1 count=512 | tr '\000' '\377' | \
dd bs=1 of=$m seek=$(( $virtual_page * 512)) conv=notrunc; } 2>/dev/null
echo "Generated $(( $i )) / $(( $PAGE_COUNT ))"
done
rm -rf $tmp_cmd
exit 0
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