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Revision 1.18 - (hide annotations) (download)
Tue Jun 17 14:38:32 2003 UTC (11 years, 2 months ago) by vapier
Branch: MAIN
Changes since 1.17: +23 -29 lines
filter-flag = atomic + handle more 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 1.18 # $Header: /home/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.17 2003/04/27 20:57:46 azarah 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:${#CXXFLAGS}-2}"
56 verwilst 1.2 }
57    
58 vapier 1.18 append-flags() {
59 azarah 1.8 CFLAGS="${CFLAGS} $1"
60     CXXFLAGS="${CXXFLAGS} $1"
61 verwilst 1.1 }
62    
63 vapier 1.18 replace-flags() {
64 seemant 1.9 CFLAGS="${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}" == "$1" ] ; then
71 azarah 1.8 echo true
72 vapier 1.18 return 0
73     fi
74 danarmak 1.7 done
75 vapier 1.18 return 1
76 verwilst 1.1 }
77 azarah 1.8
78     strip-flags() {
79     local NEW_CFLAGS=""
80     local NEW_CXXFLAGS=""
81    
82 azarah 1.17 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
83     if [ "${ACCEPT_KEYWORDS/~/}" != "${ACCEPT_KEYWORDS}" -a \
84     "${ACCEPT_KEYWORDS/-~/}" = "${ACCEPT_KEYWORDS}" ]
85     then
86     if use debug &> /dev/null
87     then
88     einfo "Enabling the use of some unstable flags"
89     fi
90    
91     ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
92     fi
93    
94 azarah 1.8 set -f
95    
96     for x in ${CFLAGS}
97     do
98     for y in ${ALLOWED_FLAGS}
99     do
100 lostlogic 1.14 flag=${x%%=*}
101     if [ "${flag%%${y}}" = "" ]
102 azarah 1.8 then
103 lostlogic 1.14 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
104     break
105 azarah 1.8 fi
106     done
107     done
108    
109     for x in ${CXXFLAGS}
110     do
111     for y in ${ALLOWED_FLAGS}
112     do
113 lostlogic 1.14 flag=${x%%=*}
114     if [ "${flag%%${y}}" = "" ]
115 azarah 1.8 then
116 lostlogic 1.14 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
117     break
118 azarah 1.8 fi
119     done
120     done
121    
122     set +f
123    
124 azarah 1.17 use debug &>/dev/null && einfo "CFLAGS=\"${NEW_CFLAGS}\""
125     use debug &>/dev/null && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
126    
127 azarah 1.8 export CFLAGS="${NEW_CFLAGS}"
128     export CXXFLAGS="${NEW_CXXFLAGS}"
129     }
130    
131 vapier 1.10 get-flag() {
132     local findflag="$1"
133    
134     for f in ${CFLAGS} ${CXXFLAGS} ; do
135     if [ "${f/${findflag}}" != "${f}" ] ; then
136     echo "${f/-${findflag}=}"
137     return
138     fi
139     done
140 joker 1.16 }
141    
142 vapier 1.18 replace-sparc64-flags() {
143 joker 1.16 local SPARC64_CPUS="ultrasparc v9"
144    
145     if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]
146     then
147     for x in ${SPARC64_CPUS}
148     do
149     CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}"
150     done
151     else
152     for x in ${SPARC64_CPUS}
153     do
154     CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
155     done
156     fi
157    
158     if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]
159     then
160     for x in ${SPARC64_CPUS}
161     do
162     CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}"
163     done
164     else
165     for x in ${SPARC64_CPUS}
166     do
167     CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
168     done
169     fi
170 vapier 1.10 }

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