44 lines · bash
1#!/bin/sh2# SPDX-License-Identifier: LGPL-2.13 4if [ $# -ne 3 ] ; then5 [ $# -eq 1 ] && hostarch=$1 || hostarch=`uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/`6 linux_header_dir=tools/include/uapi/linux7 header_dir=tools/include/uapi/asm-generic8 arch_header_dir=tools/arch/${hostarch}/include/uapi/asm9else10 linux_header_dir=$111 header_dir=$212 arch_header_dir=$313fi14 15linux_mman=${linux_header_dir}/mman.h16arch_mman=${arch_header_dir}/mman.h17 18# those in grep -E -vw are flags, we want just the bits19 20printf "static const char *mmap_flags[] = {\n"21regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MAP_([[:alnum:]_]+)[[:space:]]+(0x[[:xdigit:]]+)[[:space:]]*.*'22test -f ${arch_mman} && \23grep -E -q $regex ${arch_mman} && \24(grep -E $regex ${arch_mman} | \25 sed -r "s/$regex/\2 \1 \1 \1 \2/g" | \26 xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef MAP_%s\n#define MAP_%s %s\n#endif\n")27grep -E -q $regex ${linux_mman} && \28(grep -E $regex ${linux_mman} | \29 grep -E -vw 'MAP_(UNINITIALIZED|TYPE|SHARED_VALIDATE)' | \30 sed -r "s/$regex/\2 \1 \1 \1 \2/g" | \31 xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef MAP_%s\n#define MAP_%s %s\n#endif\n")32( ! test -f ${arch_mman} || \33grep -E -q '#[[:space:]]*include[[:space:]]+.*uapi/asm-generic/mman.*' ${arch_mman}) &&34(grep -E $regex ${header_dir}/mman-common.h | \35 grep -E -vw 'MAP_(UNINITIALIZED|TYPE|SHARED_VALIDATE)' | \36 sed -r "s/$regex/\2 \1 \1 \1 \2/g" | \37 xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef MAP_%s\n#define MAP_%s %s\n#endif\n")38( ! test -f ${arch_mman} || \39grep -E -q '#[[:space:]]*include[[:space:]]+.*uapi/asm-generic/mman.h>.*' ${arch_mman}) &&40(grep -E $regex ${header_dir}/mman.h | \41 sed -r "s/$regex/\2 \1 \1 \1 \2/g" | \42 xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef MAP_%s\n#define MAP_%s %s\n#endif\n")43printf "};\n"44