Mercurial > hg > nginx
annotate auto/types/sizeof @ 6015:e11a8e7e8e0c
Configure: fixed type max value detection.
The code tried to use suffixes for "long" and "long long" types, but
it never worked as intended due to the bug in the shell code. Also,
the max value for any 64-bit type other than "long long" on platforms
with 32-bit "long" would be incorrect if the bug was fixed.
So instead of fixing the bug in the shell code, always use the "int"
constant for 32-bit types, and "long long" constant for 64-bit types.
author | Ruslan Ermilov <ru@nginx.com> |
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date | Wed, 18 Mar 2015 02:04:39 +0300 |
parents | 434548349838 |
children | 82a76258a142 |
rev | line source |
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2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
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455 | 6 echo $ngx_n "checking for $ngx_type size ...$ngx_c" |
7 | |
8 cat << END >> $NGX_AUTOCONF_ERR | |
9 | |
10 ---------------------------------------- | |
11 checking for $ngx_type size | |
12 | |
13 END | |
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15 ngx_size= |
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17 cat << END > $NGX_AUTOTEST.c |
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19 #include <sys/types.h> |
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20 #include <sys/time.h> |
455 | 21 $NGX_INCLUDE_UNISTD_H |
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22 #include <signal.h> |
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23 #include <stdio.h> |
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24 #include <sys/resource.h> |
455 | 25 $NGX_INCLUDE_INTTYPES_H |
26 $NGX_INCLUDE_AUTO_CONFIG_H | |
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28 int main() { |
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29 printf("%d", (int) sizeof($ngx_type)); |
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30 return 0; |
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31 } |
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33 END |
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455 | 35 |
583 | 36 ngx_test="$CC $CC_TEST_FLAGS $CC_AUX_FLAGS \ |
577 | 37 -o $NGX_AUTOTEST $NGX_AUTOTEST.c $NGX_LD_OPT $ngx_feature_libs" |
38 | |
455 | 39 eval "$ngx_test >> $NGX_AUTOCONF_ERR 2>&1" |
40 | |
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42 if [ -x $NGX_AUTOTEST ]; then |
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43 ngx_size=`$NGX_AUTOTEST` |
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44 echo " $ngx_size bytes" |
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45 fi |
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455 | 47 |
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48 rm -rf $NGX_AUTOTEST* |
455 | 49 |
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51 case $ngx_size in |
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52 4) |
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53 ngx_max_value=2147483647 |
657 | 54 ngx_max_len='(sizeof("-2147483648") - 1)' |
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55 ;; |
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57 8) |
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58 ngx_max_value=9223372036854775807LL |
657 | 59 ngx_max_len='(sizeof("-9223372036854775808") - 1)' |
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60 ;; |
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62 *) |
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63 echo |
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64 echo "$0: error: can not detect $ngx_type size" |
455 | 65 |
66 echo "----------" >> $NGX_AUTOCONF_ERR | |
67 cat $NGX_AUTOTEST.c >> $NGX_AUTOCONF_ERR | |
68 echo "----------" >> $NGX_AUTOCONF_ERR | |
69 echo $ngx_test >> $NGX_AUTOCONF_ERR | |
70 echo "----------" >> $NGX_AUTOCONF_ERR | |
71 | |
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72 exit 1 |
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73 esac |
455 | 74 |