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1 #!/usr/bin/awk -f
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2 # Copyright (C) 2019-2020 Free Software Foundation, Inc.
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3 #
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4 # This program is free software; you can redistribute it and/or modify it
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5 # under the terms of the GNU General Public License as published by the
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6 # Free Software Foundation; either version 3, or (at your option) any
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7 # later version.
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8 #
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9 # This program is distributed in the hope that it will be useful,
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10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 # GNU General Public License for more details.
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13 #
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14 # You should have received a copy of the GNU General Public License
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15 # along with this program; see the file COPYING3. If not see
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16 # <http://www.gnu.org/licenses/>.
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17
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18 # This awk script checks that aarch64-sve.md (passed either on the
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19 # command line or via stdin) has an up-to-date contents section.
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20
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21 BEGIN {
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22 seen1 = 0
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23 seen2 = 0
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24 errors = 0
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25 }
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26
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27 # The headings in the comments use a two-level hierarchy: ";; == ..."
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28 # for major sections and ";; ---- ..." for minor sections. Each section
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29 # heading must be unique.
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30 #
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31 # The contents section should list all the section headings, using the
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32 # same text and in the same order. We should therefore see exactly two
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33 # copies of the section list.
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34 /^;; == / || /^;; ---- / {
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35 if ($0 in seen || seen2 > 0)
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36 {
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37 if (seen2 >= seen1)
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38 {
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39 printf "error: line not in contents: %s\n", $0 > "/dev/stderr"
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40 errors += 1
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41 exit(1)
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42 }
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43 if ($0 != order[seen2])
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44 {
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45 printf "error: mismatched contents\n saw: %s\nexpected: %s\n", \
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46 $0, order[seen2] > "/dev/stderr"
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47 errors += 1
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48 exit(1)
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49 }
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50 seen2 += 1
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51 }
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52 else
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53 {
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54 seen[$0] = 1
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55 order[seen1] = $0
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56 seen1 += 1
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57 }
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58 }
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59
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60 END {
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61 if (seen2 < seen1 && errors == 0)
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62 {
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63 printf "error: line only in contents: %s\n", order[seen2] > "/dev/stderr"
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64 exit(1)
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65 }
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66 }
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