/[gentoo-x86]/eclass/flag-o-matic.eclass
Gentoo

Diff of /eclass/flag-o-matic.eclass

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

Revision 1.37 Revision 1.50
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 1.37 2004/02/21 07:19:29 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.50 2004/05/12 13:36:17 pappy 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 $ECLASS"
47# will leave the user with -mfpmath=386 47# will leave the user with -mfpmath=386
48# 48#
49#### append-ldflags #### 49#### append-ldflags ####
50# Add extra flags to your current LDFLAGS 50# Add extra flags to your current LDFLAGS
51# 51#
52#### filter-ldflags <flags> ####
53# Remove particular flags from LDFLAGS
54# Matches only complete flags
55#
52#### etexec-flags #### 56#### etexec-flags ####
53# hooked function for hardened-gcc that appends 57# hooked function for hardened gcc that appends
54# -yet_exec {C,CXX,LD}FLAGS when hardened-gcc is installed 58# -fno-pic to {C,CXX,LD}FLAGS
55# and a package is filtering -fPIC,-fpic, -fPIE, -fpie 59# when a package is filtering -fpic, -fPIC, -fpie, -fPIE
56# 60#
57#### fstack-flags #### 61#### fstack-flags ####
58# hooked function for hardened-gcc that appends 62# hooked function for hardened gcc that appends
59# -yno_propolice to {C,CXX,LD}FLAGS when hardened-gcc is installed 63# -fno-stack-protector to {C,CXX,LD}FLAGS
60# and a package is filtering -fstack-protector, -fstack-protector-all 64# when a package is filtering -fstack-protector, -fstack-protector-all
65# notice: modern automatic specs files will also suppress -fstack-protector-all
66# when only -fno-stack-protector is given
61# 67#
62 68
63# C[XX]FLAGS that we allow in strip-flags 69# C[XX]FLAGS that we allow in strip-flags
64setup-allowed-flags() { 70setup-allowed-flags() {
71 if [ -z "${ALLOWED_FLAGS}" ] ; then
65 export ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g" 72 export ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -pipe -g"
66 case "${ARCH}" in 73 case "${ARCH}" in
67 mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;; 74 mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;;
68 amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; 75 amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
69 alpha) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; 76 alpha) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
70 ia64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; 77 ia64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;;
71 esac 78 esac
79 fi
72 80
73 # C[XX]FLAGS that we are think is ok, but needs testing 81 # C[XX]FLAGS that we are think is ok, but needs testing
74 # NOTE: currently -Os have issues with gcc3 and K6* arch's 82 # NOTE: currently -Os have issues with gcc3 and K6* arch's
75 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" 83 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
76 return 0 84 return 0
77} 85}
78 86
79filter-flags() { 87filter-flags() {
80 for x in "$@" ; do 88 for x in "$@" ; do
81 case "${x}" in 89 case "${x}" in
82 -fPIC|-fpic|-fPIE|-fpie) etexec-flags;; 90 -fPIC|-fpic|-fPIE|-fpie|-pie) etexec-flags;;
83 -fstack-protector|-fstack-protector-all) fstack-flags;; 91 -fstack-protector|-fstack-protector-all) fstack-flags;;
84 *) ;; 92 *) ;;
85 esac 93 esac
86 done 94 done
87 95
94 CXXFLAGS="${CXXFLAGS// ${x} / }" 102 CXXFLAGS="${CXXFLAGS// ${x} / }"
95 done 103 done
96 CFLAGS="${CFLAGS:1:${#CFLAGS}-2}" 104 CFLAGS="${CFLAGS:1:${#CFLAGS}-2}"
97 CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}" 105 CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}"
98 return 0 106 return 0
107}
108
109filter-lfs-flags() {
110 filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
111}
112
113append-lfs-flags() {
114 append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
99} 115}
100 116
101append-flags() { 117append-flags() {
102 export CFLAGS="${CFLAGS} $@" 118 export CFLAGS="${CFLAGS} $@"
103 export CXXFLAGS="${CXXFLAGS} $@" 119 export CXXFLAGS="${CXXFLAGS} $@"
121 local newcpu="$1" ; shift 137 local newcpu="$1" ; shift
122 local oldcpu="" 138 local oldcpu=""
123 for oldcpu in "$@" ; do 139 for oldcpu in "$@" ; do
124 replace-flags -march=${oldcpu} -march=${newcpu} 140 replace-flags -march=${oldcpu} -march=${newcpu}
125 replace-flags -mcpu=${oldcpu} -mcpu=${newcpu} 141 replace-flags -mcpu=${oldcpu} -mcpu=${newcpu}
142 replace-flags -mtune=${oldcpu} -mtune=${newcpu}
126 done 143 done
127 return 0 144 return 0
128} 145}
129 146
130is-flag() { 147is-flag() {
166 183
167 local NEW_CFLAGS="" 184 local NEW_CFLAGS=""
168 local NEW_CXXFLAGS="" 185 local NEW_CXXFLAGS=""
169 186
170 # Allow unstable C[XX]FLAGS if we are using unstable profile ... 187 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
171 if [ `has ~${ARCH} ${ACCEPT_KEYWORDS}` ] ; then 188 if has ~${ARCH} ${ACCEPT_KEYWORDS} ; then
172 [ `use debug` ] && einfo "Enabling the use of some unstable flags" 189 use debug && einfo "Enabling the use of some unstable flags"
173 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" 190 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
174 fi 191 fi
175 192
176 set -f 193 set -f
177 194
209 NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" 226 NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2"
210 fi 227 fi
211 228
212 set +f 229 set +f
213 230
214 [ `use debug` ] \ 231 use debug \
215 && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \ 232 && einfo "CFLAGS=\"${NEW_CFLAGS}\"" \
216 && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\"" 233 && einfo "CXXFLAGS=\"${NEW_CXXFLAGS}\""
217 234
218 export CFLAGS="${NEW_CFLAGS}" 235 export CFLAGS="${NEW_CFLAGS}"
219 export CXXFLAGS="${NEW_CXXFLAGS}" 236 export CXXFLAGS="${NEW_CXXFLAGS}"
220 return 0 237 return 0
221} 238}
222 239
223test_flag() { 240test_flag() {
224 if gcc -S -xc "$@" -o /dev/null /dev/null >/dev/null 2>&1; then 241 if [ -z "`gcc -S -xc "$@" -o /dev/null /dev/null 2>&1`" ]; then
225 echo "$@" 242 echo "$@"
226 return 0 243 return 0
227 fi 244 fi
228 return 1 245 return 1
229} 246}
254 fi 271 fi
255 done 272 done
256 return 1 273 return 1
257} 274}
258 275
276has_pic() {
277 [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0
278 [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0
279 [ ! -z "`${CC/ .*/} --version| grep pie`" ] && return 0
280 return 1
281}
282
283has_pie() {
284 [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0
285 [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0
286 [ ! -z "`${CC/ .*/} --version| grep pie`" ] && return 0
287 return 1
288}
289
290has_ssp() {
291 [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0
292 [ ! -z "`${CC/ .*/} --version| grep ssp`" ] && return 0
293 return 1
294}
295
259replace-sparc64-flags() { 296replace-sparc64-flags() {
260 local SPARC64_CPUS="ultrasparc v9" 297 local SPARC64_CPUS="ultrasparc v9"
261 298
262 if [ "${CFLAGS/mtune}" != "${CFLAGS}" ] 299 if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]
263 then 300 then
289append-ldflags() { 326append-ldflags() {
290 LDFLAGS="${LDFLAGS} $@" 327 LDFLAGS="${LDFLAGS} $@"
291 return 0 328 return 0
292} 329}
293 330
331filter-ldflags() {
332 # we do this fancy spacing stuff so as to not filter
333 # out part of a flag ... we want flag atoms ! :D
334 LDFLAGS=" ${LDFLAGS} "
335 for x in "$@" ; do
336 LDFLAGS="${LDFLAGS// ${x} / }"
337 done
338 LDFLAGS="${LDFLAGS:1:${#LDFLAGS}-2}"
339 return 0
340}
341
294etexec-flags() { 342etexec-flags() {
295 has_version sys-devel/hardened-gcc 343 has_pie || has_pic
296 if [ $? == 0 ] ; then 344 if [ $? == 0 ] ; then
297 if [ "`is-flag -yet_exec`" != "true" ]; then 345 [ -z "`is-flag -fno-pic`" ] &&
298 debug-print ">>> appending flags -yet_exec" 346 export CFLAGS="${CFLAGS} `test_flag -fno-pic`"
299 append-flags -yet_exec 347
300 append-ldflags -yet_exec 348 [ -z "`is-flag -nopie`" ] &&
301 fi 349 export CFLAGS="${CFLAGS} `test_flag -nopie`"
302 fi 350 fi
303} 351}
304 352
305fstack-flags() { 353fstack-flags() {
306 has_version sys-devel/hardened-gcc 354 has_ssp
307 if [ $? == 0 ] ; then 355 if [ $? == 0 ] ; then
308 if [ "`is-flag -yno_propolice`" != "true" ]; then 356 [ -z "`is-flag -fno-stack-protector`" ] &&
309 debug-print ">>> appending flags -yno_propolice" 357 export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`"
310 append-flags -yno_propolice
311 append-ldflags -yno_propolice
312 fi 358 fi
313 fi
314} 359}

Legend:
Removed from v.1.37  
changed lines
  Added in v.1.50

  ViewVC Help
Powered by ViewVC 1.1.20