/[gentoo-x86]/eclass/flag-o-matic.eclass
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Revision 1.20 - (hide annotations) (download)
Wed Jun 25 03:27:43 2003 UTC (11 years, 6 months ago) by vapier
Branch: MAIN
Changes since 1.19: +7 -12 lines
syntax updates

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 1.20 # $Header: /home/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.19 2003/06/19 13:23:41 vapier 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     ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g"
40 verwilst 1.13
41 azarah 1.17 # C[XX]FLAGS that we are think is ok, but needs testing
42     # NOTE: currently -Os have issues with gcc3 and K6* arch's
43     UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
44 verwilst 1.13
45 vapier 1.18 filter-flags() {
46     # we do this fancy spacing stuff so as to not filter
47     # out part of a flag ... we want flag atoms ! :D
48     export CFLAGS=" ${CFLAGS} "
49     export CXXFLAGS=" ${CXXFLAGS} "
50     for x in $@ ; do
51     export CFLAGS="${CFLAGS/ ${x} / }"
52     export CXXFLAGS="${CXXFLAGS/ ${x} / }"
53 verwilst 1.1 done
54 vapier 1.18 export CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"
55     export CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"
56 verwilst 1.2 }
57    
58 vapier 1.18 append-flags() {
59 vapier 1.19 CFLAGS="${CFLAGS} $@"
60     CXXFLAGS="${CXXFLAGS} $@"
61 verwilst 1.1 }
62    
63 vapier 1.18 replace-flags() {
64 seemant 1.9 CFLAGS="${CFLAGS/${1}/${2} }"
65     CXXFLAGS="${CXXFLAGS/${1}/${2} }"
66 danarmak 1.7 }
67    
68     is-flag() {
69 vapier 1.18 for x in ${CFLAGS} ${CXXFLAGS} ; do
70     if [ "${x}" == "$1" ] ; then
71 azarah 1.8 echo true
72 vapier 1.18 return 0
73     fi
74 danarmak 1.7 done
75 vapier 1.18 return 1
76 verwilst 1.1 }
77 azarah 1.8
78     strip-flags() {
79     local NEW_CFLAGS=""
80     local NEW_CXXFLAGS=""
81    
82 azarah 1.17 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
83 vapier 1.20 if [ `has ~${ARCH} ${ACCEPT_KEYWORDS}` ] ; then
84     [ `use debug` ] && einfo "Enabling the use of some unstable flags"
85 azarah 1.17 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
86     fi
87    
88 azarah 1.8 set -f
89    
90     for x in ${CFLAGS}
91     do
92     for y in ${ALLOWED_FLAGS}
93     do
94 lostlogic 1.14 flag=${x%%=*}
95     if [ "${flag%%${y}}" = "" ]
96 azarah 1.8 then
97 lostlogic 1.14 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
98     break
99 azarah 1.8 fi
100     done
101     done
102    
103     for x in ${CXXFLAGS}
104     do
105     for y in ${ALLOWED_FLAGS}
106     do
107 lostlogic 1.14 flag=${x%%=*}
108     if [ "${flag%%${y}}" = "" ]
109 azarah 1.8 then
110 lostlogic 1.14 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
111     break
112 azarah 1.8 fi
113     done
114     done
115    
116     set +f
117    
118 vapier 1.20 [ `use debug` ] \
119     && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \
120     && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
121    
122 azarah 1.8 export CFLAGS="${NEW_CFLAGS}"
123     export CXXFLAGS="${NEW_CXXFLAGS}"
124     }
125    
126 vapier 1.10 get-flag() {
127     local findflag="$1"
128    
129     for f in ${CFLAGS} ${CXXFLAGS} ; do
130     if [ "${f/${findflag}}" != "${f}" ] ; then
131     echo "${f/-${findflag}=}"
132     return
133     fi
134     done
135 joker 1.16 }
136    
137 vapier 1.18 replace-sparc64-flags() {
138 joker 1.16 local SPARC64_CPUS="ultrasparc v9"
139    
140     if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]
141     then
142     for x in ${SPARC64_CPUS}
143     do
144     CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}"
145     done
146     else
147     for x in ${SPARC64_CPUS}
148     do
149     CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
150     done
151     fi
152    
153     if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]
154     then
155     for x in ${SPARC64_CPUS}
156     do
157     CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}"
158     done
159     else
160     for x in ${SPARC64_CPUS}
161     do
162     CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
163     done
164     fi
165 vapier 1.10 }

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