cvw/linux/testvector-generation/genInitMem.sh

#!/bin/bash
tcpPort=1235
imageDir=$RISCV/buildroot/output/images
tvDir=$RISCV/linux-testvectors
rawRamFile="$tvDir/ramGDB.bin"
ramFile="$tvDir/ram.bin"
rawBootmemFile="$tvDir/bootmemGDB.bin"
bootmemFile="$tvDir/bootmem.bin"
rawUntrimmedBootmemFile="$tvDir/untrimmedBootmemFileGDB.bin"
untrimmedBootmemFile="$tvDir/untrimmedBootmemFile.bin"
DEVICE_TREE=${imageDir}/wally-virt.dtb

if [ ! -d "$tvDir" ]; then
    echo "Error: linux testvector directory $tvDir not found!">&2
    echo "Please create it. For example:">&2
    echo "    sudo mkdir -p $tvDir">&2
    exit 1
fi
test -w $tvDir
if [ ! $? -eq 0 ]; then
    echo "Error: insuffcient write privileges for linux testvector directory $tvDir !">&2
    echo "Please chmod it. For example:">&2
    echo "    sudo chmod -R a+rw $tvDir">&2
    exit 1
fi

echo "Launching QEMU in replay mode!"
(qemu-system-riscv64 \
-M virt -m 256M -dtb $DEVICE_TREE \
-nographic \
-bios $imageDir/fw_jump.elf -kernel $imageDir/Image -append "root=/dev/vda ro" -initrd $imageDir/rootfs.cpio \
-gdb tcp::$tcpPort -S) \
& riscv64-unknown-elf-gdb --quiet \
-ex "set pagination off" \
-ex "set logging overwrite on" \
-ex "set logging redirect on" \
-ex "set confirm off" \
-ex "target extended-remote :$tcpPort" \
-ex "maintenance packet Qqemu.PhyMemMode:1" \
-ex "printf \"Creating $rawBootmemFile\n\"" \
-ex "dump binary memory $rawBootmemFile 0x1000 0x1fff" \
-ex "printf \"Creating $rawRamFile\n\"" \
-ex "dump binary memory $rawRamFile 0x80000000 0x8fffffff" \
-ex "kill" \
-ex "q"

#-ex "printf \"Warning - please verify that the second half of $rawUntrimmedBootmemFile is all 0s\n\"" \
#-ex "printf \"Creating $rawUntrimmedBootmemFile\n\"" \
#-ex "dump binary memory $rawUntrimmedBootmemFile 0x1000 0x2fff" \

echo "Changing Endianness"
make fixBinMem
./fixBinMem "$rawRamFile" "$ramFile"
./fixBinMem "$rawBootmemFile" "$bootmemFile"
#./fixBinMem "$rawUntrimmedBootmemFile" "$untrimmedBootmemFile"  # doesn't seem to be used for anything
rm -f "$rawRamFile" "$rawBootmemFile" "$rawUntrimmedBootmemFile"

echo "genInitMem.sh completed!"
echo "You may want to restrict write access to $tvDir now and give cad ownership of it."
echo "Run the following:"
echo "    sudo chown -R cad:cad $tvDir"
echo "    sudo chmod -R go-w $tvDir"