1#!/bin/sh
2# SPDX-License-Identifier: LGPL-2.1
3# (C) 2019, Arnaldo Carvalho de Melo <acme@redhat.com>
4
5if [ $# -ne 1 ] ; then
6	arch_x86_header_dir=tools/arch/x86/include/asm/
7else
8	arch_x86_header_dir=$1
9fi
10
11x86_irq_vectors=${arch_x86_header_dir}/irq_vectors.h
12
13# FIRST_EXTERNAL_VECTOR is not that useful, find what is its number
14# and then replace whatever is using it and that is useful, which at
15# the time of writing of this script was: 0x20.
16
17first_external_regex='^#define[[:space:]]+FIRST_EXTERNAL_VECTOR[[:space:]]+(0x[[:xdigit:]]+)$'
18first_external_vector=$(grep -E ${first_external_regex} ${x86_irq_vectors} | sed -r "s/${first_external_regex}/\1/g")
19
20printf "static const char *x86_irq_vectors[] = {\n"
21regex='^#define[[:space:]]+([[:alnum:]_]+)_VECTOR[[:space:]]+(0x[[:xdigit:]]+)$'
22sed -r "s/FIRST_EXTERNAL_VECTOR/${first_external_vector}/g" ${x86_irq_vectors} | \
23grep -E ${regex} | \
24	sed -r "s/${regex}/\2 \1/g" | sort -n | \
25	xargs printf "\t[%s] = \"%s\",\n"
26printf "};\n\n"
27
28