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Revision 1.22 - (hide annotations) (download)
Wed Jun 25 19:27:33 2003 UTC (11 years, 1 month ago) by vapier
Branch: MAIN
Changes since 1.21: +5 -2 lines
ARCH specific support in ALLOWED_FLAGS

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 vapier 1.22 # $Header: /home/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.21 2003/06/25 05:56:40 kumba 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     esac
43 verwilst 1.13
44 azarah 1.17 # C[XX]FLAGS that we are think is ok, but needs testing
45     # NOTE: currently -Os have issues with gcc3 and K6* arch's
46     UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
47 verwilst 1.13
48 vapier 1.18 filter-flags() {
49     # we do this fancy spacing stuff so as to not filter
50     # out part of a flag ... we want flag atoms ! :D
51     export CFLAGS=" ${CFLAGS} "
52     export CXXFLAGS=" ${CXXFLAGS} "
53     for x in $@ ; do
54     export CFLAGS="${CFLAGS/ ${x} / }"
55     export CXXFLAGS="${CXXFLAGS/ ${x} / }"
56 verwilst 1.1 done
57 vapier 1.18 export CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"
58     export CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"
59 verwilst 1.2 }
60    
61 vapier 1.18 append-flags() {
62 vapier 1.19 CFLAGS="${CFLAGS} $@"
63     CXXFLAGS="${CXXFLAGS} $@"
64 verwilst 1.1 }
65    
66 vapier 1.18 replace-flags() {
67 seemant 1.9 CFLAGS="${CFLAGS/${1}/${2} }"
68     CXXFLAGS="${CXXFLAGS/${1}/${2} }"
69 danarmak 1.7 }
70    
71     is-flag() {
72 vapier 1.18 for x in ${CFLAGS} ${CXXFLAGS} ; do
73     if [ "${x}" == "$1" ] ; then
74 azarah 1.8 echo true
75 vapier 1.18 return 0
76     fi
77 danarmak 1.7 done
78 vapier 1.18 return 1
79 verwilst 1.1 }
80 azarah 1.8
81     strip-flags() {
82     local NEW_CFLAGS=""
83     local NEW_CXXFLAGS=""
84    
85 azarah 1.17 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
86 vapier 1.20 if [ `has ~${ARCH} ${ACCEPT_KEYWORDS}` ] ; then
87     [ `use debug` ] && einfo "Enabling the use of some unstable flags"
88 azarah 1.17 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
89     fi
90    
91 azarah 1.8 set -f
92    
93     for x in ${CFLAGS}
94     do
95     for y in ${ALLOWED_FLAGS}
96     do
97 lostlogic 1.14 flag=${x%%=*}
98     if [ "${flag%%${y}}" = "" ]
99 azarah 1.8 then
100 lostlogic 1.14 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
101     break
102 azarah 1.8 fi
103     done
104     done
105    
106     for x in ${CXXFLAGS}
107     do
108     for y in ${ALLOWED_FLAGS}
109     do
110 lostlogic 1.14 flag=${x%%=*}
111     if [ "${flag%%${y}}" = "" ]
112 azarah 1.8 then
113 lostlogic 1.14 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
114     break
115 azarah 1.8 fi
116     done
117     done
118    
119     set +f
120    
121 vapier 1.20 [ `use debug` ] \
122     && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \
123     && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
124    
125 azarah 1.8 export CFLAGS="${NEW_CFLAGS}"
126     export CXXFLAGS="${NEW_CXXFLAGS}"
127     }
128    
129 vapier 1.10 get-flag() {
130     local findflag="$1"
131    
132     for f in ${CFLAGS} ${CXXFLAGS} ; do
133     if [ "${f/${findflag}}" != "${f}" ] ; then
134     echo "${f/-${findflag}=}"
135     return
136     fi
137     done
138 joker 1.16 }
139    
140 vapier 1.18 replace-sparc64-flags() {
141 joker 1.16 local SPARC64_CPUS="ultrasparc v9"
142    
143     if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]
144     then
145     for x in ${SPARC64_CPUS}
146     do
147     CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}"
148     done
149     else
150     for x in ${SPARC64_CPUS}
151     do
152     CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
153     done
154     fi
155    
156     if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]
157     then
158     for x in ${SPARC64_CPUS}
159     do
160     CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}"
161     done
162     else
163     for x in ${SPARC64_CPUS}
164     do
165     CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
166     done
167     fi
168 vapier 1.10 }

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