/[gentoo-x86]/eclass/flag-o-matic.eclass
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Revision 1.11 Revision 1.22
1# Copyright 1999-2002 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 1.22 2003/06/25 19:27:33 vapier Exp $
4#
3# Author Bart Verwilst <verwilst@gentoo.org> 5# Author Bart Verwilst <verwilst@gentoo.org>
4# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.11 2002/12/22 12:11:56 cretin Exp $
5 6
6ECLASS=flag-o-matic 7ECLASS=flag-o-matic
7INHERITED="$INHERITED $ECLASS" 8INHERITED="$INHERITED $ECLASS"
8 9
9# 10#
10#### filter-flags <flag> #### 11#### filter-flags <flags> ####
11# Remove particular flags from C[XX]FLAGS 12# Remove particular flags from C[XX]FLAGS
13# Matches only complete flags
12# 14#
13#### append-flags <flag> #### 15#### append-flags <flags> ####
14# Add extra flags to your current C[XX]FLAGS 16# Add extra flags to your current C[XX]FLAGS
15# 17#
16#### replace-flags <orig.flag> <new.flag> ### 18#### replace-flags <orig.flag> <new.flag> ###
17# Replace a flag by another one 19# Replace a flag by another one
18# 20#
19#### is-flag <flag> #### 21#### is-flag <flag> ####
20# Returns "true" if flag is set in C[XX]FLAGS 22# Returns "true" if flag is set in C[XX]FLAGS
21# Matches only complete flag 23# Matches only complete a flag
22# 24#
23#### strip-flags #### 25#### strip-flags ####
24# Strip C[XX]FLAGS of everything except known 26# Strip C[XX]FLAGS of everything except known
25# good options. 27# good options.
26# 28#
27#### get-flag <flag> #### 29#### get-flag <flag> ####
28# Find and echo the value for a particular flag 30# Find and echo the value for a particular flag
29# 31#
32#### replace-sparc64-flags ####
33# Sets mcpu to v8 and uses the original value
34# as mtune if none specified.
35#
30 36
31filter-flags () {
32 37
38# C[XX]FLAGS that we allow in strip-flags
39ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g"
40case "${ARCH}" in
41 mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;;
42esac
43
44# C[XX]FLAGS that we are think is ok, but needs testing
45# NOTE: currently -Os have issues with gcc3 and K6* arch's
46UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
47
48filter-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} "
33 for x in $1 53 for x in $@ ; do
34 do
35 export CFLAGS="${CFLAGS/${x}}" 54 export CFLAGS="${CFLAGS/ ${x} / }"
36 export CXXFLAGS="${CXXFLAGS/${x}}" 55 export CXXFLAGS="${CXXFLAGS/ ${x} / }"
37 done 56 done
38 57 export CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"
58 export CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"
39} 59}
40 60
41append-flags () { 61append-flags() {
42
43 CFLAGS="${CFLAGS} $1" 62 CFLAGS="${CFLAGS} $@"
44 CXXFLAGS="${CXXFLAGS} $1" 63 CXXFLAGS="${CXXFLAGS} $@"
45
46} 64}
47 65
48replace-flags () { 66replace-flags() {
49
50 CFLAGS="${CFLAGS/${1}/${2} }" 67 CFLAGS="${CFLAGS/${1}/${2} }"
51 CXXFLAGS="${CXXFLAGS/${1}/${2} }" 68 CXXFLAGS="${CXXFLAGS/${1}/${2} }"
52
53} 69}
54 70
55is-flag() { 71is-flag() {
56
57 for x in ${CFLAGS} ${CXXFLAGS} 72 for x in ${CFLAGS} ${CXXFLAGS} ; do
58 do
59 if [ "${x}" = "$1" ] 73 if [ "${x}" == "$1" ] ; then
60 then
61 echo true 74 echo true
62 break 75 return 0
63 fi 76 fi
64 done 77 done
65 78 return 1
66} 79}
67 80
68strip-flags() { 81strip-flags() {
69
70 local NEW_CFLAGS="" 82 local NEW_CFLAGS=""
71 local NEW_CXXFLAGS="" 83 local NEW_CXXFLAGS=""
72 84
73 local ALLOWED_FLAGS="-O -mcpu -march -pipe -g" 85 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
86 if [ `has ~${ARCH} ${ACCEPT_KEYWORDS}` ] ; then
87 [ `use debug` ] && einfo "Enabling the use of some unstable flags"
88 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
89 fi
74 90
75 set -f 91 set -f
76 92
77 for x in ${CFLAGS} 93 for x in ${CFLAGS}
78 do 94 do
79 for y in ${ALLOWED_FLAGS} 95 for y in ${ALLOWED_FLAGS}
80 do 96 do
97 flag=${x%%=*}
81 if [ "${x/${y}}" != "${x}" ] 98 if [ "${flag%%${y}}" = "" ]
82 then 99 then
83 if [ -z "${NEW_CFLAGS}" ]
84 then
85 NEW_CFLAGS="${x}"
86 else
87 NEW_CFLAGS="${NEW_CFLAGS} ${x}" 100 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
88 fi 101 break
89 fi 102 fi
90 done 103 done
91 done 104 done
92 105
93 for x in ${CXXFLAGS} 106 for x in ${CXXFLAGS}
94 do 107 do
95 for y in ${ALLOWED_FLAGS} 108 for y in ${ALLOWED_FLAGS}
96 do 109 do
110 flag=${x%%=*}
97 if [ "${x/${y}}" != "${x}" ] 111 if [ "${flag%%${y}}" = "" ]
98 then 112 then
99 if [ -z "${NEW_CXXFLAGS}" ]
100 then
101 NEW_CXXFLAGS="${x}"
102 else
103 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" 113 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
104 fi 114 break
105 fi 115 fi
106 done 116 done
107 done 117 done
108 118
109 set +f 119 set +f
120
121 [ `use debug` ] \
122 && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \
123 && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
110 124
111 export CFLAGS="${NEW_CFLAGS}" 125 export CFLAGS="${NEW_CFLAGS}"
112 export CXXFLAGS="${NEW_CXXFLAGS}" 126 export CXXFLAGS="${NEW_CXXFLAGS}"
113} 127}
114 128
120 echo "${f/-${findflag}=}" 134 echo "${f/-${findflag}=}"
121 return 135 return
122 fi 136 fi
123 done 137 done
124} 138}
139
140replace-sparc64-flags() {
141 local SPARC64_CPUS="ultrasparc v9"
142
143 if [ "${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}

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