Commit | Line | Data |
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9df526b0 MY |
1 | #!/bin/sh |
2 | # SPDX-License-Identifier: GPL-2.0-only | |
3 | # | |
4 | # Generate a syscall table header. | |
5 | # | |
6 | # Each line of the syscall table should have the following format: | |
7 | # | |
8 | # NR ABI NAME [NATIVE] [COMPAT] | |
9 | # | |
10 | # NR syscall number | |
11 | # ABI ABI name | |
12 | # NAME syscall name | |
13 | # NATIVE native entry point (optional) | |
14 | # COMPAT compat entry point (optional) | |
15 | ||
16 | set -e | |
17 | ||
18 | usage() { | |
19 | echo >&2 "usage: $0 [--abis ABIS] INFILE OUTFILE" >&2 | |
20 | echo >&2 | |
21 | echo >&2 " INFILE input syscall table" | |
22 | echo >&2 " OUTFILE output header file" | |
23 | echo >&2 | |
24 | echo >&2 "options:" | |
25 | echo >&2 " --abis ABIS ABI(s) to handle (By default, all lines are handled)" | |
26 | exit 1 | |
27 | } | |
28 | ||
29 | # default unless specified by options | |
30 | abis= | |
31 | ||
32 | while [ $# -gt 0 ] | |
33 | do | |
34 | case $1 in | |
35 | --abis) | |
36 | abis=$(echo "($2)" | tr ',' '|') | |
37 | shift 2;; | |
38 | -*) | |
39 | echo "$1: unknown option" >&2 | |
40 | usage;; | |
41 | *) | |
42 | break;; | |
43 | esac | |
44 | done | |
45 | ||
46 | if [ $# -ne 2 ]; then | |
47 | usage | |
48 | fi | |
49 | ||
50 | infile="$1" | |
51 | outfile="$2" | |
52 | ||
53 | nxt=0 | |
54 | ||
c6a3a81d | 55 | grep -E "^[0-9]+[[:space:]]+$abis" "$infile" | { |
9df526b0 MY |
56 | |
57 | while read nr abi name native compat ; do | |
58 | ||
c6a3a81d MY |
59 | if [ $nxt -gt $nr ]; then |
60 | echo "error: $infile: syscall table is not sorted or duplicates the same syscall number" >&2 | |
61 | exit 1 | |
62 | fi | |
63 | ||
9df526b0 MY |
64 | while [ $nxt -lt $nr ]; do |
65 | echo "__SYSCALL($nxt, sys_ni_syscall)" | |
66 | nxt=$((nxt + 1)) | |
67 | done | |
68 | ||
69 | if [ -n "$compat" ]; then | |
70 | echo "__SYSCALL_WITH_COMPAT($nr, $native, $compat)" | |
71 | elif [ -n "$native" ]; then | |
72 | echo "__SYSCALL($nr, $native)" | |
73 | else | |
74 | echo "__SYSCALL($nr, sys_ni_syscall)" | |
75 | fi | |
76 | nxt=$((nr + 1)) | |
77 | done | |
78 | } > "$outfile" |