1 #!/bin/sh
2 # SPDX-License-Identifier: LGPL-2.1
3
4 if [ $# -ne 3 ] ; then
5 [ $# -eq 1 ] && hostarch=$1 || hostarch=`uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/`
6 linux_header_dir=tools/include/uapi/linux
7 header_dir=tools/include/uapi/asm-generic
8 arch_header_dir=tools/arch/${hostarch}/include/uapi/asm
9 else
10 linux_header_dir=$1
11 header_dir=$2
12 arch_header_dir=$3
13 fi
14
15 linux_mman=${linux_header_dir}/mman.h
16 arch_mman=${arch_header_dir}/mman.h
17
18 # those in grep -E -vw are flags, we want just the bits
19
20 printf "static const char *mmap_flags[] = {\n"
21 regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MAP_([[:alnum:]_]+)[[:space:]]+(0x[[:xdigit:]]+)[[:space:]]*.*'
22 test -f ${arch_mman} && \
23 grep -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")
27 grep -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} || \
33 grep -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} || \
39 grep -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")
43 printf "};\n"
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