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Revision 1.25 - (hide annotations) (download)
Wed Aug 20 04:11:27 2003 UTC (11 years, 1 month ago) by agriffis
Branch: MAIN
Changes since 1.24: +8 -7 lines
minor fixes

1 vapier 1.12 # Copyright 1999-2003 Gentoo Technologies, Inc.
2 verwilst 1.1 # Distributed under the terms of the GNU General Public License v2
3 agriffis 1.25 # $Header: /home/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.24 2003/07/22 12:48:11 aliz Exp $
4 vapier 1.12 #
5 verwilst 1.1 # Author Bart Verwilst <verwilst@gentoo.org>
6 azarah 1.8
7 verwilst 1.1 ECLASS=flag-o-matic
8 danarmak 1.6 INHERITED="$INHERITED $ECLASS"
9 azarah 1.8
10 verwilst 1.2 #
11 vapier 1.18 #### filter-flags <flags> ####
12 verwilst 1.3 # Remove particular flags from C[XX]FLAGS
13 vapier 1.18 # Matches only complete flags
14 verwilst 1.2 #
15 vapier 1.18 #### append-flags <flags> ####
16 verwilst 1.3 # Add extra flags to your current C[XX]FLAGS
17     #
18 verwilst 1.4 #### replace-flags <orig.flag> <new.flag> ###
19 verwilst 1.3 # Replace a flag by another one
20     #
21 danarmak 1.7 #### is-flag <flag> ####
22     # Returns "true" if flag is set in C[XX]FLAGS
23 vapier 1.18 # Matches only complete a flag
24 danarmak 1.7 #
25 azarah 1.8 #### strip-flags ####
26     # Strip C[XX]FLAGS of everything except known
27     # good options.
28     #
29 vapier 1.10 #### get-flag <flag> ####
30     # Find and echo the value for a particular flag
31     #
32 joker 1.16 #### replace-sparc64-flags ####
33     # Sets mcpu to v8 and uses the original value
34     # as mtune if none specified.
35     #
36    
37 verwilst 1.3
38 azarah 1.17 # C[XX]FLAGS that we allow in strip-flags
39 vapier 1.22 ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g"
40     case "${ARCH}" in
41     mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;;
42 tester 1.23 amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
43 agriffis 1.25 alpha) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
44 vapier 1.22 esac
45 verwilst 1.13
46 azarah 1.17 # C[XX]FLAGS that we are think is ok, but needs testing
47     # NOTE: currently -Os have issues with gcc3 and K6* arch's
48     UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
49 aliz 1.24
50     filter-mfpmath() {
51     for a in $CFLAGS; do
52     if [ "${a:0:8}" == "-mfpmath" ]; then
53     orig_mfpmath=$a
54     fi
55     done
56    
57     mfpmath="$( echo $orig_mfpmath | awk -F '=' '{print $2}' | tr "," " " )"
58     for b in $@; do
59     mfpmath="${mfpmath/$b}"
60     done
61    
62     if [ -z "${mfpmath/ }" ]; then
63     filter-flags "$orig_mfpmath"
64     else
65     new_mfpmath="-mfpmath=$( echo $mfpmath | sed -e "s/ /,/g" -e "s/,,/,/g" )"
66     replace-flags "$orig_mfpmath" "$new_mfpmath"
67     fi
68     }
69 verwilst 1.13
70 vapier 1.18 filter-flags() {
71     # we do this fancy spacing stuff so as to not filter
72     # out part of a flag ... we want flag atoms ! :D
73 agriffis 1.25 CFLAGS=" ${CFLAGS} "
74     CXXFLAGS=" ${CXXFLAGS} "
75 vapier 1.18 for x in $@ ; do
76 agriffis 1.25 CFLAGS="${CFLAGS/ ${x} / }"
77     CXXFLAGS="${CXXFLAGS/ ${x} / }"
78 verwilst 1.1 done
79 agriffis 1.25 CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"
80     CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"
81 verwilst 1.2 }
82    
83 vapier 1.18 append-flags() {
84 vapier 1.19 CFLAGS="${CFLAGS} $@"
85     CXXFLAGS="${CXXFLAGS} $@"
86 verwilst 1.1 }
87    
88 vapier 1.18 replace-flags() {
89 seemant 1.9 CFLAGS="${CFLAGS/${1}/${2} }"
90     CXXFLAGS="${CXXFLAGS/${1}/${2} }"
91 danarmak 1.7 }
92    
93     is-flag() {
94 vapier 1.18 for x in ${CFLAGS} ${CXXFLAGS} ; do
95     if [ "${x}" == "$1" ] ; then
96 azarah 1.8 echo true
97 vapier 1.18 return 0
98     fi
99 danarmak 1.7 done
100 vapier 1.18 return 1
101 verwilst 1.1 }
102 azarah 1.8
103     strip-flags() {
104     local NEW_CFLAGS=""
105     local NEW_CXXFLAGS=""
106    
107 azarah 1.17 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
108 vapier 1.20 if [ `has ~${ARCH} ${ACCEPT_KEYWORDS}` ] ; then
109     [ `use debug` ] && einfo "Enabling the use of some unstable flags"
110 azarah 1.17 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
111     fi
112    
113 azarah 1.8 set -f
114    
115     for x in ${CFLAGS}
116     do
117     for y in ${ALLOWED_FLAGS}
118     do
119 lostlogic 1.14 flag=${x%%=*}
120     if [ "${flag%%${y}}" = "" ]
121 azarah 1.8 then
122 lostlogic 1.14 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
123     break
124 azarah 1.8 fi
125     done
126     done
127    
128     for x in ${CXXFLAGS}
129     do
130     for y in ${ALLOWED_FLAGS}
131     do
132 lostlogic 1.14 flag=${x%%=*}
133     if [ "${flag%%${y}}" = "" ]
134 azarah 1.8 then
135 lostlogic 1.14 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
136     break
137 azarah 1.8 fi
138     done
139     done
140    
141     set +f
142    
143 vapier 1.20 [ `use debug` ] \
144     && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \
145     && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
146    
147 azarah 1.8 export CFLAGS="${NEW_CFLAGS}"
148     export CXXFLAGS="${NEW_CXXFLAGS}"
149     }
150    
151 vapier 1.10 get-flag() {
152     local findflag="$1"
153    
154     for f in ${CFLAGS} ${CXXFLAGS} ; do
155     if [ "${f/${findflag}}" != "${f}" ] ; then
156     echo "${f/-${findflag}=}"
157     return
158     fi
159     done
160 joker 1.16 }
161    
162 vapier 1.18 replace-sparc64-flags() {
163 joker 1.16 local SPARC64_CPUS="ultrasparc v9"
164    
165     if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]
166     then
167     for x in ${SPARC64_CPUS}
168     do
169     CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}"
170     done
171     else
172     for x in ${SPARC64_CPUS}
173     do
174     CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
175     done
176     fi
177    
178     if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]
179     then
180     for x in ${SPARC64_CPUS}
181     do
182     CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}"
183     done
184     else
185     for x in ${SPARC64_CPUS}
186     do
187     CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
188     done
189     fi
190 vapier 1.10 }

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