/[gentoo-x86]/eclass/flag-o-matic.eclass
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Revision 1.15 Revision 1.23
1# Copyright 1999-2003 Gentoo Technologies, Inc. 1# Copyright 1999-2003 Gentoo Technologies, Inc.
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.15 2003/04/06 23:35:41 method Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.23 2003/07/18 20:11:22 tester Exp $
4# 4#
5# Author Bart Verwilst <verwilst@gentoo.org> 5# Author Bart Verwilst <verwilst@gentoo.org>
6 6
7ECLASS=flag-o-matic 7ECLASS=flag-o-matic
8INHERITED="$INHERITED $ECLASS" 8INHERITED="$INHERITED $ECLASS"
9 9
10# 10#
11#### filter-flags <flag> #### 11#### filter-flags <flags> ####
12# Remove particular flags from C[XX]FLAGS 12# Remove particular flags from C[XX]FLAGS
13# Matches only complete flags
13# 14#
14#### append-flags <flag> #### 15#### append-flags <flags> ####
15# Add extra flags to your current C[XX]FLAGS 16# Add extra flags to your current C[XX]FLAGS
16# 17#
17#### replace-flags <orig.flag> <new.flag> ### 18#### replace-flags <orig.flag> <new.flag> ###
18# Replace a flag by another one 19# Replace a flag by another one
19# 20#
20#### is-flag <flag> #### 21#### is-flag <flag> ####
21# Returns "true" if flag is set in C[XX]FLAGS 22# Returns "true" if flag is set in C[XX]FLAGS
22# Matches only complete flag 23# Matches only complete a flag
23# 24#
24#### strip-flags #### 25#### strip-flags ####
25# Strip C[XX]FLAGS of everything except known 26# Strip C[XX]FLAGS of everything except known
26# good options. 27# good options.
27# 28#
28#### get-flag <flag> #### 29#### get-flag <flag> ####
29# Find and echo the value for a particular flag 30# Find and echo the value for a particular flag
30# 31#
31 32#### replace-sparc64-flags ####
32ALLOWED_FLAGS="-O -mcpu -march -mtune -fstack-protector -pipe -g" 33# Sets mcpu to v8 and uses the original value
34# as mtune if none specified.
35#
33 36
34 37
35filter-flags () { 38# C[XX]FLAGS that we allow in strip-flags
39ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g"
40case "${ARCH}" in
41 mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;;
42 amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
43esac
36 44
45# C[XX]FLAGS that we are think is ok, but needs testing
46# NOTE: currently -Os have issues with gcc3 and K6* arch's
47UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
48
49filter-flags() {
50 # we do this fancy spacing stuff so as to not filter
51 # out part of a flag ... we want flag atoms ! :D
52 export CFLAGS=" ${CFLAGS} "
53 export CXXFLAGS=" ${CXXFLAGS} "
37 for x in $1 54 for x in $@ ; do
38 do
39 export CFLAGS="${CFLAGS/${x}}" 55 export CFLAGS="${CFLAGS/ ${x} / }"
40 export CXXFLAGS="${CXXFLAGS/${x}}" 56 export CXXFLAGS="${CXXFLAGS/ ${x} / }"
41 done 57 done
42 58 export CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"
59 export CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"
43} 60}
44 61
45append-flags () { 62append-flags() {
46
47 CFLAGS="${CFLAGS} $1" 63 CFLAGS="${CFLAGS} $@"
48 CXXFLAGS="${CXXFLAGS} $1" 64 CXXFLAGS="${CXXFLAGS} $@"
49
50} 65}
51 66
52replace-flags () { 67replace-flags() {
53
54 CFLAGS="${CFLAGS/${1}/${2} }" 68 CFLAGS="${CFLAGS/${1}/${2} }"
55 CXXFLAGS="${CXXFLAGS/${1}/${2} }" 69 CXXFLAGS="${CXXFLAGS/${1}/${2} }"
56
57} 70}
58 71
59is-flag() { 72is-flag() {
60
61 for x in ${CFLAGS} ${CXXFLAGS} 73 for x in ${CFLAGS} ${CXXFLAGS} ; do
62 do
63 if [ "${x}" = "$1" ] 74 if [ "${x}" == "$1" ] ; then
64 then
65 echo true 75 echo true
66 break 76 return 0
67 fi 77 fi
68 done 78 done
69 79 return 1
70} 80}
71 81
72strip-flags() { 82strip-flags() {
73
74 local NEW_CFLAGS="" 83 local NEW_CFLAGS=""
75 local NEW_CXXFLAGS="" 84 local NEW_CXXFLAGS=""
85
86 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
87 if [ `has ~${ARCH} ${ACCEPT_KEYWORDS}` ] ; then
88 [ `use debug` ] && einfo "Enabling the use of some unstable flags"
89 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
90 fi
76 91
77 set -f 92 set -f
78 93
79 for x in ${CFLAGS} 94 for x in ${CFLAGS}
80 do 95 do
102 done 117 done
103 done 118 done
104 119
105 set +f 120 set +f
106 121
122 [ `use debug` ] \
123 && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \
124 && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
125
107 export CFLAGS="${NEW_CFLAGS}" 126 export CFLAGS="${NEW_CFLAGS}"
108 export CXXFLAGS="${NEW_CXXFLAGS}" 127 export CXXFLAGS="${NEW_CXXFLAGS}"
109} 128}
110 129
111get-flag() { 130get-flag() {
116 echo "${f/-${findflag}=}" 135 echo "${f/-${findflag}=}"
117 return 136 return
118 fi 137 fi
119 done 138 done
120} 139}
140
141replace-sparc64-flags() {
142 local SPARC64_CPUS="ultrasparc v9"
143
144 if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]
145 then
146 for x in ${SPARC64_CPUS}
147 do
148 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}"
149 done
150 else
151 for x in ${SPARC64_CPUS}
152 do
153 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
154 done
155 fi
156
157 if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]
158 then
159 for x in ${SPARC64_CPUS}
160 do
161 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}"
162 done
163 else
164 for x in ${SPARC64_CPUS}
165 do
166 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
167 done
168 fi
169}

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