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annotate auto/cc/clang @ 7674:7731c710796f

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Memcached: protect from too long responses. If a memcached response was followed by a correct trailer, and then the NUL character followed by some extra data - this was accepted by the trailer checking code. This in turn resulted in ctx->rest underflow and caused negative size buffer on the next reading from the upstream, followed by the "negative size buf in writer" alert. Fix is to always check for too long responses, so a correct trailer cannot be followed by extra data.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 06 Jul 2020 18:36:17 +0300
parents ceab908790c4
children
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4762
182aee3b1bf5 Added the Clang compiler support.
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1
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2 # Copyright (C) Nginx, Inc.
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3
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4
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5 # clang
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6
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7
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325b3042edd6 Configure: fixed clang detection on MINIX.
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8 NGX_CLANG_VER=`$CC -v 2>&1 | grep 'version' 2>&1 \
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ceab908790c4 Configure: fixed clang version detection (closes #1539).
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9 | sed -n -e 's/^.*clang version \(.*\)/\1/p' \
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10 -e 's/^.*LLVM version \(.*\)/\1/p'`
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12 echo " + clang version: $NGX_CLANG_VER"
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13
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14 have=NGX_COMPILER value="\"clang $NGX_CLANG_VER\"" . auto/define
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16
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17 CC_TEST_FLAGS="-pipe"
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18
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19
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20 # optimizations
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21
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22 #NGX_CLANG_OPT="-O2"
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23 #NGX_CLANG_OPT="-Oz"
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24 NGX_CLANG_OPT="-O"
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25
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26 case $CPU in
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27 pentium)
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28 # optimize for Pentium
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29 CPU_OPT="-march=pentium"
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30 NGX_CPU_CACHE_LINE=32
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31 ;;
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32
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33 pentiumpro | pentium3)
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34 # optimize for Pentium Pro, Pentium II and Pentium III
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35 CPU_OPT="-march=pentiumpro"
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36 NGX_CPU_CACHE_LINE=32
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37 ;;
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38
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39 pentium4)
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40 # optimize for Pentium 4
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41 CPU_OPT="-march=pentium4"
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42 NGX_CPU_CACHE_LINE=128
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43 ;;
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44
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45 athlon)
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46 # optimize for Athlon
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47 CPU_OPT="-march=athlon"
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48 NGX_CPU_CACHE_LINE=64
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49 ;;
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50
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51 opteron)
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52 # optimize for Opteron
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53 CPU_OPT="-march=opteron"
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54 NGX_CPU_CACHE_LINE=64
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55 ;;
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57 esac
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58
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59 CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT"
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61
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62 CFLAGS="$CFLAGS -pipe $CPU_OPT"
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63
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64 if [ ".$PCRE_OPT" = "." ]; then
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65 PCRE_OPT="-O2 -pipe $CPU_OPT"
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66 else
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67 PCRE_OPT="$PCRE_OPT -pipe"
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68 fi
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69
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70 if [ ".$ZLIB_OPT" = "." ]; then
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71 ZLIB_OPT="-O2 -pipe $CPU_OPT"
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72 else
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73 ZLIB_OPT="$ZLIB_OPT -pipe"
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74 fi
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77 # warnings
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78
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79 CFLAGS="$CFLAGS $NGX_CLANG_OPT -Wall -Wextra -Wpointer-arith"
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80 CFLAGS="$CFLAGS -Wconditional-uninitialized"
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81 #CFLAGS="$CFLAGS -Wmissing-prototypes"
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82
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83 # we have a lot of unused function arguments
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84 CFLAGS="$CFLAGS -Wno-unused-parameter"
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85
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86 # deprecated system OpenSSL library on OS X
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87 if [ "$NGX_SYSTEM" = "Darwin" ]; then
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88 CFLAGS="$CFLAGS -Wno-deprecated-declarations"
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89 fi
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90
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91 # stop on warning
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92 CFLAGS="$CFLAGS -Werror"
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93
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94 # debug
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95 CFLAGS="$CFLAGS -g"
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96
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97 if [ ".$CPP" = "." ]; then
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98 CPP="$CC -E"
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99 fi