1#!/bin/sh
2# SPDX-License-Identifier: LGPL-2.1
3
4if [ $# -ne 2 ] ; then
5	[ $# -eq 1 ] && hostarch=$1 || hostarch=`uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/`
6	asm_header_dir=tools/include/uapi/asm-generic
7	arch_header_dir=tools/arch/${hostarch}/include/uapi/asm
8else
9	asm_header_dir=$1
10	arch_header_dir=$2
11fi
12
13common_mman=${asm_header_dir}/mman-common.h
14arch_mman=${arch_header_dir}/mman.h
15
16prefix="PROT"
17
18printf "static const char *mmap_prot[] = {\n"
19regex=`printf '^[[:space:]]*#[[:space:]]*define[[:space:]]+%s_([[:alnum:]_]+)[[:space:]]+(0x[[:xdigit:]]+)[[:space:]]*.*' ${prefix}`
20( ! test -f ${arch_mman} \
21|| grep -E -q '#[[:space:]]*include[[:space:]]+.*uapi/asm-generic/mman.*' ${arch_mman}) &&
22(grep -E $regex ${common_mman} | \
23	grep -E -vw PROT_NONE | \
24	sed -r "s/$regex/\2 \1 \1 \1 \2/g"	| \
25	xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef ${prefix}_%s\n#define ${prefix}_%s %s\n#endif\n")
26test -f ${arch_mman} && grep -E -q $regex ${arch_mman} &&
27(grep -E $regex ${arch_mman} | \
28	grep -E -vw PROT_NONE | \
29	sed -r "s/$regex/\2 \1 \1 \1 \2/g"	| \
30	xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef ${prefix}_%s\n#define ${prefix}_%s %s\n#endif\n")
31printf "};\n"
32