Mercurial > hg > nginx-quic
annotate auto/cc/clang @ 7100:12cadc4669a7
HTTP/2: signal 0-byte HPACK's dynamic table size.
This change lets NGINX talk to clients with SETTINGS_HEADER_TABLE_SIZE
smaller than the default 4KB. Previously, NGINX would ACK the SETTINGS
frame with a small dynamic table size, but it would never send dynamic
table size update, leading to a connection-level COMPRESSION_ERROR.
Also, it allows clients to release 4KB of memory per connection, since
NGINX doesn't use HPACK's dynamic table when encoding headers, however
clients had to maintain it, since NGINX never signaled that it doesn't
use it.
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
author | Piotr Sikora <piotrsikora@google.com> |
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date | Wed, 30 Aug 2017 14:52:11 -0700 |
parents | 9eefb38f0005 |
children | 325b3042edd6 |
rev | line source |
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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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8 NGX_CLANG_VER=`$CC -v 2>&1 | grep '\(clang\|LLVM\) version' 2>&1 \ |
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9 | sed -e 's/^.* version \(.*\)/\1/'` |
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10 |
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11 echo " + clang version: $NGX_CLANG_VER" |
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12 |
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13 have=NGX_COMPILER value="\"clang $NGX_CLANG_VER\"" . auto/define |
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14 |
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15 |
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16 CC_TEST_FLAGS="-pipe" |
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17 |
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18 |
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19 # optimizations |
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20 |
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21 #NGX_CLANG_OPT="-O2" |
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22 #NGX_CLANG_OPT="-Oz" |
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23 NGX_CLANG_OPT="-O" |
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24 |
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25 case $CPU in |
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26 pentium) |
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27 # optimize for Pentium |
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28 CPU_OPT="-march=pentium" |
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29 NGX_CPU_CACHE_LINE=32 |
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30 ;; |
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31 |
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32 pentiumpro | pentium3) |
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33 # optimize for Pentium Pro, Pentium II and Pentium III |
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34 CPU_OPT="-march=pentiumpro" |
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35 NGX_CPU_CACHE_LINE=32 |
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36 ;; |
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37 |
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38 pentium4) |
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39 # optimize for Pentium 4 |
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40 CPU_OPT="-march=pentium4" |
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41 NGX_CPU_CACHE_LINE=128 |
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42 ;; |
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43 |
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44 athlon) |
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45 # optimize for Athlon |
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46 CPU_OPT="-march=athlon" |
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47 NGX_CPU_CACHE_LINE=64 |
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48 ;; |
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49 |
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50 opteron) |
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51 # optimize for Opteron |
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52 CPU_OPT="-march=opteron" |
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53 NGX_CPU_CACHE_LINE=64 |
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54 ;; |
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55 |
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56 esac |
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57 |
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58 CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT" |
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59 |
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60 |
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61 CFLAGS="$CFLAGS -pipe $CPU_OPT" |
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62 |
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63 if [ ".$PCRE_OPT" = "." ]; then |
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64 PCRE_OPT="-O2 -pipe $CPU_OPT" |
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65 else |
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66 PCRE_OPT="$PCRE_OPT -pipe" |
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67 fi |
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68 |
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69 if [ ".$ZLIB_OPT" = "." ]; then |
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70 ZLIB_OPT="-O2 -pipe $CPU_OPT" |
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71 else |
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72 ZLIB_OPT="$ZLIB_OPT -pipe" |
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73 fi |
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74 |
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75 |
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76 # warnings |
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77 |
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78 CFLAGS="$CFLAGS $NGX_CLANG_OPT -Wall -Wextra -Wpointer-arith" |
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79 CFLAGS="$CFLAGS -Wconditional-uninitialized" |
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80 #CFLAGS="$CFLAGS -Wmissing-prototypes" |
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81 |
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82 # we have a lot of unused function arguments |
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83 CFLAGS="$CFLAGS -Wno-unused-parameter" |
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84 |
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85 # deprecated system OpenSSL library on OS X |
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86 if [ "$NGX_SYSTEM" = "Darwin" ]; then |
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87 CFLAGS="$CFLAGS -Wno-deprecated-declarations" |
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88 fi |
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89 |
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90 # stop on warning |
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91 CFLAGS="$CFLAGS -Werror" |
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92 |
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93 # debug |
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94 CFLAGS="$CFLAGS -g" |
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95 |
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96 if [ ".$CPP" = "." ]; then |
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97 CPP="$CC -E" |
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98 fi |