Re: [REVIEW ONLY 2/2] TEST: Add instantiation script on CSR allocation

[Palmer Dabbelt <palmer@dabbelt.com>]

On Mon, 28 Nov 2022 17:20:58 PST (-0800), binutils@sourceware.org wrote:
> From: Tsukasa OI <research_trasio@irq.a4lg.com>
>
> ---
>  instantiate-sspmp.sh | 130 +++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 130 insertions(+)
>  create mode 100755 instantiate-sspmp.sh

It's not clear to me what you're trying to do here.

>
> diff --git a/instantiate-sspmp.sh b/instantiate-sspmp.sh
> new file mode 100755
> index 000000000000..23b6a2f554e6
> --- /dev/null
> +++ b/instantiate-sspmp.sh
> @@ -0,0 +1,130 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: CC0-1.0
> +# Author: Tsukasa OI <research_trasio@irq.a4lg.com>
> +# Year: 2022
> +
> +check_csr_addr ()
> +{
> +	ADDR="$1"
> +	case "$ADDR" in
> +	0x* | 0X*)
> +		ADDR="${ADDR#??}"
> +		;;
> +	esac
> +	case "$ADDR" in
> +	[0-9a-fA-F])
> +		ADDR=00$ADDR
> +		;;
> +	[0-9a-fA-F][0-9a-fA-F])
> +		ADDR=0$ADDR
> +		;;
> +	[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F])
> +		;;
> +	*)
> +		echo "ERROR: \`$1' is not a valid CSR address for \`$2'." 1>&2
> +		exit 1
> +		;;
> +	esac
> +	ADDR=$(echo $ADDR | tr A-F a-f)
> +	printf %s $ADDR
> +	return 0
> +}
> +
> +canonicalize_hex ()
> +{
> +	ADDR=$1
> +	while :
> +	do
> +		case $ADDR in
> +		0)
> +			break
> +			;;
> +		0?*)
> +			ADDR=${ADDR#0}
> +			;;
> +		*)
> +			break
> +			;;
> +		esac
> +	done
> +	printf 0x%s $ADDR
> +}
> +
> +dwarf_regnum ()
> +{
> +	echo -n $(($1 + 4096))
> +}
> +
> +dwarf_offset ()
> +{
> +	echo -n $(($1 * 4))
> +}
> +
> +test_path ()
> +{
> +	if test '!' -f "$1"
> +	then
> +		echo "ERROR: file \`$1' is not found." 1>&2
> +		exit 1
> +	fi
> +}
> +
> +if test $# -ne 4
> +then
> +	ERRMSG="usage: $0 ADDR_SPMPCFG0 ADDR_SPMPADDR0 ADDR_SPMPSWITCH0 ADDR_SPMPSWITCH1"
> +	echo "$ERRMSG" 1>&2
> +	exit 1
> +fi
> +
> +PRIV_VERSIONS="1p9p1 1p10 1p11 1p12"
> +
> +test_path include/opcode/riscv-opc.h
> +for V in $PRIV_VERSIONS
> +do
> +	test_path gas/testsuite/gas/riscv/csr-version-$V.d
> +done
> +test_path gas/testsuite/gas/riscv/csr-dw-regnums.s
> +test_path gas/testsuite/gas/riscv/csr-dw-regnums.d
> +
> +do_csr_instantiation ()
> +{
> +	CSR="$1"
> +	CSR_UPPER=$(echo $CSR | tr a-z A-Z)
> +	ADDR=$(check_csr_addr "$2" $CSR)
> +	HEXC=$(canonicalize_hex $ADDR)
> +	DWREG=$(dwarf_regnum $HEXC)
> +	DWOFF=$(dwarf_offset $HEXC)
> +	ORIG_ADDR=$(grep "a0,${CSR}\$" gas/testsuite/gas/riscv/csr-version-1p12.d | head -n 1 | sed 's/.*+\([0-9a-f]\{3\}\)02573.*/\1/')
> +	sed -i "s/^#define CSR_${CSR_UPPER} .*/#define CSR_${CSR_UPPER} $HEXC/" include/opcode/riscv-opc.h
> +	for V in $PRIV_VERSIONS
> +	do
> +		sed -i "s/+${ORIG_ADDR}\\(02573\\|59073\\)/+${ADDR}\\1/" gas/testsuite/gas/riscv/csr-version-$V.d
> +	done
> +	sed -i "s/\\.cfi_offset ${CSR}, .*/.cfi_offset ${CSR}, ${DWOFF}/" gas/testsuite/gas/riscv/csr-dw-regnums.s
> +	sed -i "s/DW_CFA_offset_extended_sf: r[0-9]\\+ \\\\(${CSR}\\\\) at cfa\\\\+[0-9]\\+/DW_CFA_offset_extended_sf: r${DWREG} \\\\(${CSR}\\\\) at cfa\\\\+${DWOFF}/" gas/testsuite/gas/riscv/csr-dw-regnums.d
> +}
> +
> +ADDR=$(check_csr_addr "$1" spmpcfg0)
> +NADDR=$((0x$ADDR))
> +for N in $(seq 0 15)
> +do
> +	ADDR_N=$(printf %03x $(($NADDR + $N)))
> +	do_csr_instantiation spmpcfg$N $ADDR_N
> +done
> +
> +ADDR=$(check_csr_addr "$2" spmpaddr0)
> +NADDR=$((0x$ADDR))
> +for N in $(seq 0 63)
> +do
> +	ADDR_N=$(printf %03x $(($NADDR + $N)))
> +	do_csr_instantiation spmpaddr$N $ADDR_N
> +done
> +
> +do_csr_instantiation spmpswitch0 "$3"
> +do_csr_instantiation spmpswitch1 "$4"
> +
> +if test -f "$0"
> +then
> +	rm -f "$0"
> +fi
> +exit 0