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annotate auto/cc/gcc @ 9306:e46e1ea89ccd default tip
Upstream: $upstream_cache_age variable.
The variable reflects response age, including the time spent in the
cache and the upstream response age as obtained from the "Age" header.
If the response wasn't cached, the variable reflects the "Age" header
of the upstream response.
If the intended use case is to cache responses as per HTTP/1.1 caching
model, the $upstream_cache_age variable can be used to provide the "Age"
header with the "add_header" directive, such as:
add_header Age $upstream_cache_age;
This now removes the "Age" header if it was present.
Further, the "expires" directives now removes the "Age" header if it
was present in the response, as the "expires" directive assumes zero
age when it adds "Expires" and "Cache-Control" headers.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 18 Jul 2024 19:39:45 +0300 |
parents | 9eefb38f0005 |
children |
rev | line source |
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455 | 1 |
2 # Copyright (C) Igor Sysoev | |
4412 | 3 # Copyright (C) Nginx, Inc. |
455 | 4 |
5 | |
501 | 6 # gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2 |
497 | 7 # 3.0.4, 3.1.1, 3.2.3, 3.3.2, 3.3.3, 3.3.4, 3.4.0, 3.4.2 |
521 | 8 # 4.0.0, 4.0.1, 4.1.0 |
501 | 9 |
10 | |
11 NGX_GCC_VER=`$CC -v 2>&1 | grep 'gcc version' 2>&1 \ | |
12 | sed -e 's/^.* version \(.*\)/\1/'` | |
13 | |
14 echo " + gcc version: $NGX_GCC_VER" | |
455 | 15 |
557 | 16 have=NGX_COMPILER value="\"gcc $NGX_GCC_VER\"" . auto/define |
17 | |
455 | 18 |
19 # Solaris 7's /usr/ccs/bin/as does not support "-pipe" | |
20 | |
21 CC_TEST_FLAGS="-pipe" | |
22 | |
577 | 23 ngx_feature="gcc -pipe switch" |
455 | 24 ngx_feature_name= |
25 ngx_feature_run=no | |
26 ngx_feature_incs= | |
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test PCRE in FreeBSD, Linux, and NetBSD
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27 ngx_feature_path= |
455 | 28 ngx_feature_libs= |
29 ngx_feature_test= | |
30 . auto/feature | |
31 | |
32 CC_TEST_FLAGS= | |
33 | |
34 if [ $ngx_found = yes ]; then | |
35 PIPE="-pipe" | |
36 fi | |
37 | |
561 | 38 |
581 | 39 case "$NGX_MACHINE" in |
561 | 40 |
743 | 41 sun4u | sun4v | sparc | sparc64 ) |
563 | 42 # "-mcpu=v9" enables the "casa" assembler instruction |
561 | 43 CFLAGS="$CFLAGS -mcpu=v9" |
44 ;; | |
45 | |
46 esac | |
47 | |
48 | |
455 | 49 # optimizations |
50 | |
487 | 51 #NGX_GCC_OPT="-O2" |
52 #NGX_GCC_OPT="-Os" | |
53 NGX_GCC_OPT="-O" | |
54 | |
55 #CFLAGS="$CFLAGS -fomit-frame-pointer" | |
455 | 56 |
57 case $CPU in | |
58 pentium) | |
59 # optimize for Pentium and Athlon | |
60 CPU_OPT="-march=pentium" | |
589 | 61 NGX_CPU_CACHE_LINE=32 |
455 | 62 ;; |
63 | |
561 | 64 pentiumpro | pentium3) |
455 | 65 # optimize for Pentium Pro, Pentium II and Pentium III |
66 CPU_OPT="-march=pentiumpro" | |
589 | 67 NGX_CPU_CACHE_LINE=32 |
455 | 68 ;; |
69 | |
70 pentium4) | |
71 # optimize for Pentium 4, gcc 3.x | |
72 CPU_OPT="-march=pentium4" | |
589 | 73 NGX_CPU_CACHE_LINE=128 |
455 | 74 ;; |
75 | |
521 | 76 athlon) |
77 # optimize for Athlon, gcc 3.x | |
78 CPU_OPT="-march=athlon" | |
589 | 79 NGX_CPU_CACHE_LINE=64 |
521 | 80 ;; |
81 | |
509 | 82 opteron) |
83 # optimize for Opteron, gcc 3.x | |
84 CPU_OPT="-march=opteron" | |
589 | 85 NGX_CPU_CACHE_LINE=64 |
509 | 86 ;; |
87 | |
581 | 88 sparc32) |
89 # build 32-bit UltraSparc binary | |
90 CPU_OPT="-m32" | |
91 CORE_LINK="$CORE_LINK -m32" | |
589 | 92 NGX_CPU_CACHE_LINE=64 |
581 | 93 ;; |
94 | |
455 | 95 sparc64) |
96 # build 64-bit UltraSparc binary | |
97 CPU_OPT="-m64" | |
98 CORE_LINK="$CORE_LINK -m64" | |
589 | 99 NGX_CPU_CACHE_LINE=64 |
455 | 100 ;; |
101 | |
613 | 102 ppc64) |
103 # build 64-bit PowerPC binary | |
104 CPU_OPT="-m64" | |
105 CPU_OPT="$CPU_OPT -falign-functions=32 -falign-labels=32" | |
106 CPU_OPT="$CPU_OPT -falign-loops=32 -falign-jumps=32" | |
107 CORE_LINK="$CORE_LINK -m64" | |
108 NGX_CPU_CACHE_LINE=128 | |
109 ;; | |
110 | |
455 | 111 esac |
112 | |
3362
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GCC 4.1 builtin atomic operations
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113 CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT" |
455 | 114 |
501 | 115 case "$NGX_GCC_VER" in |
116 2.7*) | |
117 # batch build | |
118 CPU_OPT= | |
119 ;; | |
120 esac | |
455 | 121 |
122 | |
123 CFLAGS="$CFLAGS $PIPE $CPU_OPT" | |
124 | |
125 if [ ".$PCRE_OPT" = "." ]; then | |
126 PCRE_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT" | |
127 else | |
128 PCRE_OPT="$PCRE_OPT $PIPE" | |
129 fi | |
130 | |
131 if [ ".$ZLIB_OPT" = "." ]; then | |
132 ZLIB_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT" | |
133 else | |
134 ZLIB_OPT="$ZLIB_OPT $PIPE" | |
135 fi | |
136 | |
137 | |
138 # warnings | |
139 | |
487 | 140 # -W requires at least -O |
1010 | 141 CFLAGS="$CFLAGS ${NGX_GCC_OPT:--O} -W" |
487 | 142 |
455 | 143 CFLAGS="$CFLAGS -Wall -Wpointer-arith" |
577 | 144 #CFLAGS="$CFLAGS -Wconversion" |
455 | 145 #CFLAGS="$CFLAGS -Winline" |
4760
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Added a commented out -Wmissing-prototypes to CFLAGS.
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146 #CFLAGS="$CFLAGS -Wmissing-prototypes" |
455 | 147 |
6583
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Configure: revised GCC version processing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
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148 case "$NGX_GCC_VER" in |
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149 2.*) |
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150 # we have a lot of the unused function arguments |
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151 CFLAGS="$CFLAGS -Wno-unused" |
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152 ;; |
501 | 153 |
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154 *) |
501 | 155 # we have a lot of the unused function arguments |
156 CFLAGS="$CFLAGS -Wno-unused-parameter" | |
2751 | 157 # 4.2.1 shows the warning in wrong places |
501 | 158 #CFLAGS="$CFLAGS -Wunreachable-code" |
5714
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Configure: added -Wno-deprecated-declarations on OS X.
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159 |
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160 # deprecated system OpenSSL library on OS X |
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161 if [ "$NGX_SYSTEM" = "Darwin" ]; then |
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parents:
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162 CFLAGS="$CFLAGS -Wno-deprecated-declarations" |
80bd391c90d1
Configure: added -Wno-deprecated-declarations on OS X.
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parents:
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163 fi |
501 | 164 ;; |
165 esac | |
166 | |
455 | 167 |
168 # stop on warning | |
169 CFLAGS="$CFLAGS -Werror" | |
170 | |
171 # debug | |
172 CFLAGS="$CFLAGS -g" | |
173 | |
174 # DragonFly's gcc3 generates DWARF | |
175 #CFLAGS="$CFLAGS -g -gstabs" | |
176 | |
177 if [ ".$CPP" = "." ]; then | |
178 CPP="$CC -E" | |
179 fi |