/[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 1.11 Revision 1.103
1# Copyright 1999-2002 Gentoo Technologies, Inc. 1# Copyright 1999-2005 Gentoo Foundation
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# 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 $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.103 2006/01/10 01:14:30 vapier Exp $
5 4
6ECLASS=flag-o-matic
7INHERITED="$INHERITED $ECLASS"
8 5
6# need access to emktemp()
7inherit eutils toolchain-funcs multilib
8
9# 9#
10#### filter-flags <flag> #### 10#### filter-flags <flags> ####
11# Remove particular flags from C[XX]FLAGS 11# Remove particular flags from C[XX]FLAGS
12# Matches only complete flags
12# 13#
13#### append-flags <flag> #### 14#### append-flags <flags> ####
14# Add extra flags to your current C[XX]FLAGS 15# Add extra flags to your current C[XX]FLAGS
15# 16#
16#### replace-flags <orig.flag> <new.flag> ### 17#### replace-flags <orig.flag> <new.flag> ###
17# Replace a flag by another one 18# Replace a flag by another one
18# 19#
20#### replace-cpu-flags <old.cpus> <new.cpu> ###
21# Replace march/mcpu flags that specify <old.cpus>
22# with flags that specify <new.cpu>
23#
19#### is-flag <flag> #### 24#### is-flag <flag> ####
20# Returns "true" if flag is set in C[XX]FLAGS 25# Returns "true" if flag is set in C[XX]FLAGS
21# Matches only complete flag 26# Matches only complete a flag
22# 27#
23#### strip-flags #### 28#### strip-flags ####
24# Strip C[XX]FLAGS of everything except known 29# Strip C[XX]FLAGS of everything except known
25# good options. 30# good options.
26# 31#
32#### strip-unsupported-flags ####
33# Strip C[XX]FLAGS of any flags not supported by
34# installed version of gcc
35#
27#### get-flag <flag> #### 36#### get-flag <flag> ####
28# Find and echo the value for a particular flag 37# Find and echo the value for a particular flag
29# 38#
39#### replace-sparc64-flags ####
40# Sets mcpu to v8 and uses the original value
41# as mtune if none specified.
42#
43#### filter-mfpmath <math types> ####
44# Remove specified math types from the fpmath specification
45# If the user has -mfpmath=sse,386, running `filter-mfpmath sse`
46# will leave the user with -mfpmath=386
47#
48#### append-ldflags ####
49# Add extra flags to your current LDFLAGS
50#
51#### filter-ldflags <flags> ####
52# Remove particular flags from LDFLAGS
53# Matches only complete flags
54#
55#### fstack-flags ####
56# hooked function for hardened gcc that appends
57# -fno-stack-protector to {C,CXX,LD}FLAGS
58# when a package is filtering -fstack-protector, -fstack-protector-all
59# notice: modern automatic specs files will also suppress -fstack-protector-all
60# when only -fno-stack-protector is given
61#
62#### bindnow-flags ####
63# Returns the flags to enable "now" binding in the current selected linker.
64#
65################ DEPRECATED functions ################
66# The following are still present to avoid breaking existing
67# code more than necessary; however they are deprecated. Please
68# use gcc-specs-* from toolchain-funcs.eclass instead, if you
69# need to know which hardened techs are active in the compiler.
70# See bug #100974
71#
72#### has_hardened ####
73# Returns true if the compiler has 'Hardened' in its version string,
74# (note; switched-spec vanilla compilers satisfy this condition) or
75# the specs file name contains 'hardened'.
76#
77#### has_pie ####
78# Returns true if the compiler by default or with current CFLAGS
79# builds position-independent code.
80#
81#### has_pic ####
82# Returns true if the compiler by default or with current CFLAGS
83# builds position-independent code.
84#
85#### has_ssp_all ####
86# Returns true if the compiler by default or with current CFLAGS
87# generates stack smash protections for all functions
88#
89#### has_ssp ####
90# Returns true if the compiler by default or with current CFLAGS
91# generates stack smash protections for most vulnerable functions
92#
30 93
94# C[XX]FLAGS that we allow in strip-flags
95setup-allowed-flags() {
96 if [[ -z ${ALLOWED_FLAGS} ]] ; then
97 export ALLOWED_FLAGS="-pipe"
98 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune"
99 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all"
100 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking"
101 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time"
102 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3"
103 fi
104 # allow a bunch of flags that negate features / control ABI
105 ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all"
106 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \
107 -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \
108 -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \
109 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \
110 -mieee -mieee-with-inexact \
111 -mtls-direct-seg-refs -mno-tls-direct-seg-refs \
112 -mflat -mno-flat -mno-faster-structs -mfaster-structs \
113 -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \
114 -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias"
115
116 # C[XX]FLAGS that we are think is ok, but needs testing
117 # NOTE: currently -Os have issues with gcc3 and K6* arch's
118 export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
119 return 0
120}
121
31filter-flags () { 122filter-flags() {
123 local x f fset
124 declare -a new_CFLAGS new_CXXFLAGS
32 125
33 for x in $1 126 for x in "$@" ; do
127 case "${x}" in
128 -fPIC|-fpic|-fPIE|-fpie|-pie)
129 append-flags `test_flag -fno-pie`;;
130 -fstack-protector|-fstack-protector-all)
131 fstack-flags;;
132 esac
34 do 133 done
35 export CFLAGS="${CFLAGS/${x}}" 134
36 export CXXFLAGS="${CXXFLAGS/${x}}" 135 for fset in CFLAGS CXXFLAGS; do
136 # Looping over the flags instead of using a global
137 # substitution ensures that we're working with flag atoms.
138 # Otherwise globs like -O* have the potential to wipe out the
139 # list of flags.
140 for f in ${!fset}; do
141 for x in "$@"; do
142 # Note this should work with globs like -O*
143 [[ ${f} == ${x} ]] && continue 2
144 done
145 eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f}
37 done 146 done
147 eval export ${fset}=\${new_${fset}\[*]}
148 done
38 149
150 return 0
39} 151}
40 152
153filter-lfs-flags() {
154 [[ -n $@ ]] && die "filter-lfs-flags takes no arguments"
155 filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
156}
157
158append-lfs-flags() {
159 [[ -n $@ ]] && die "append-lfs-flags takes no arguments"
160 append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
161}
162
41append-flags () { 163append-flags() {
42 164 [[ -z $* ]] && return 0
43 CFLAGS="${CFLAGS} $1" 165 export CFLAGS="${CFLAGS} $*"
44 CXXFLAGS="${CXXFLAGS} $1" 166 export CXXFLAGS="${CXXFLAGS} $*"
45 167 [ -n "`is-flag -fno-stack-protector`" -o \
168 -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags
169 return 0
46} 170}
47 171
48replace-flags () { 172replace-flags() {
173 [[ $# != 2 ]] \
174 && echo && eerror "Usage: replace-flags <old flag> <new flag>" \
175 && die "replace-flags takes 2 arguments, not $#"
49 176
50 CFLAGS="${CFLAGS/${1}/${2} }" 177 local f fset
51 CXXFLAGS="${CXXFLAGS/${1}/${2} }" 178 declare -a new_CFLAGS new_CXXFLAGS
52 179
180 for fset in CFLAGS CXXFLAGS; do
181 # Looping over the flags instead of using a global
182 # substitution ensures that we're working with flag atoms.
183 # Otherwise globs like -O* have the potential to wipe out the
184 # list of flags.
185 for f in ${!fset}; do
186 # Note this should work with globs like -O*
187 [[ ${f} == ${1} ]] && f=${2}
188 eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f}
189 done
190 eval export ${fset}=\${new_${fset}\[*]}
191 done
192
193 return 0
194}
195
196replace-cpu-flags() {
197 local newcpu="$#" ; newcpu="${!newcpu}"
198 while [ $# -gt 1 ] ; do
199 # quote to make sure that no globbing is done (particularly on
200 # ${oldcpu} prior to calling replace-flags
201 replace-flags "-march=${1}" "-march=${newcpu}"
202 replace-flags "-mcpu=${1}" "-mcpu=${newcpu}"
203 replace-flags "-mtune=${1}" "-mtune=${newcpu}"
204 shift
205 done
206 return 0
53} 207}
54 208
55is-flag() { 209is-flag() {
210 local x
56 211
57 for x in ${CFLAGS} ${CXXFLAGS} 212 for x in ${CFLAGS} ${CXXFLAGS} ; do
58 do 213 # Note this should work with globs like -mcpu=ultrasparc*
59 if [ "${x}" = "$1" ] 214 if [[ ${x} == ${1} ]]; then
60 then
61 echo true 215 echo true
62 break 216 return 0
63 fi 217 fi
64 done 218 done
219 return 1
220}
65 221
222filter-mfpmath() {
223 local orig_mfpmath new_math prune_math
224
225 # save the original -mfpmath flag
226 orig_mfpmath="`get-flag -mfpmath`"
227 # get the value of the current -mfpmath flag
228 new_math=" `get-flag mfpmath | tr , ' '` "
229 # figure out which math values are to be removed
230 prune_math=""
231 for prune_math in "$@" ; do
232 new_math="${new_math/ ${prune_math} / }"
233 done
234 new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`"
235
236 if [ -z "${new_math}" ] ; then
237 # if we're removing all user specified math values are
238 # slated for removal, then we just filter the flag
239 filter-flags ${orig_mfpmath}
240 else
241 # if we only want to filter some of the user specified
242 # math values, then we replace the current flag
243 replace-flags ${orig_mfpmath} -mfpmath=${new_math}
244 fi
245 return 0
66} 246}
67 247
68strip-flags() { 248strip-flags() {
249 local x y flag NEW_CFLAGS NEW_CXXFLAGS
250
251 setup-allowed-flags
69 252
70 local NEW_CFLAGS="" 253 local NEW_CFLAGS=""
71 local NEW_CXXFLAGS="" 254 local NEW_CXXFLAGS=""
72 255
73 local ALLOWED_FLAGS="-O -mcpu -march -pipe -g" 256 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
257 if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then
258 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
259 fi
74 260
75 set -f 261 set -f # disable pathname expansion
76 262
77 for x in ${CFLAGS} 263 for x in ${CFLAGS}; do
78 do
79 for y in ${ALLOWED_FLAGS} 264 for y in ${ALLOWED_FLAGS}; do
80 do 265 flag=${x%%=*}
81 if [ "${x/${y}}" != "${x}" ] 266 if [ "${flag%%${y}}" = "" ] ; then
82 then
83 if [ -z "${NEW_CFLAGS}" ]
84 then
85 NEW_CFLAGS="${x}"
86 else
87 NEW_CFLAGS="${NEW_CFLAGS} ${x}" 267 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
88 fi 268 break
89 fi 269 fi
90 done 270 done
91 done 271 done
92 272
93 for x in ${CXXFLAGS} 273 for x in ${CXXFLAGS}; do
94 do
95 for y in ${ALLOWED_FLAGS} 274 for y in ${ALLOWED_FLAGS}; do
96 do 275 flag=${x%%=*}
97 if [ "${x/${y}}" != "${x}" ] 276 if [ "${flag%%${y}}" = "" ] ; then
98 then
99 if [ -z "${NEW_CXXFLAGS}" ]
100 then
101 NEW_CXXFLAGS="${x}"
102 else
103 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" 277 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
104 fi 278 break
105 fi 279 fi
106 done 280 done
107 done 281 done
108 282
109 set +f 283 # In case we filtered out all optimization flags fallback to -O2
284 if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then
285 NEW_CFLAGS="${NEW_CFLAGS} -O2"
286 fi
287 if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then
288 NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2"
289 fi
290
291 set +f # re-enable pathname expansion
110 292
111 export CFLAGS="${NEW_CFLAGS}" 293 export CFLAGS="${NEW_CFLAGS}"
112 export CXXFLAGS="${NEW_CXXFLAGS}" 294 export CXXFLAGS="${NEW_CXXFLAGS}"
295 return 0
296}
297
298test-flag-PROG() {
299 local comp=$1
300 local flags="$2"
301
302 [[ -z ${comp} || -z ${flags} ]] && \
303 return 1
304
305 local PROG=$(tc-get${comp})
306 ${PROG} ${flags} -S -o /dev/null -xc /dev/null \
307 > /dev/null 2>&1
308}
309
310# Returns true if C compiler support given flag
311test-flag-CC() { test-flag-PROG "CC" "$1"; }
312
313# Returns true if C++ compiler support given flag
314test-flag-CXX() { test-flag-PROG "CXX" "$1"; }
315
316test-flags-PROG() {
317 local comp=$1
318 local flags
319 local x
320
321 shift
322
323 [[ -z ${comp} ]] && \
324 return 1
325
326 for x in "$@" ; do
327 test-flag-${comp} "${x}" && flags="${flags} ${x}"
328 done
329
330 echo "${flags}"
331
332 # Just bail if we dont have any flags
333 [[ -n ${flags} ]]
334}
335
336# Returns (echo's) the given flags supported by the C compiler
337test-flags-CC() { test-flags-PROG "CC" "$@"; }
338
339# Returns (echo's) the given flags supported by the C++ compiler
340test-flags-CXX() { test-flags-PROG "CXX" "$@"; }
341
342# Short-hand that should hopefully work for both C and C++ compiler, but
343# its really only present due to the append-flags() abomination.
344test-flags() { test-flags-CC "$@"; }
345
346# Depriciated, use test-flags()
347test_flag() {
348 addwrite "/dev/stderr"
349 ewarn "test_flag: deprecated, please use test-flags()!" >/dev/stderr
350
351 test-flags-CC "$@"
352}
353
354test_version_info() {
355 if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then
356 return 0
357 else
358 return 1
359 fi
360}
361
362strip-unsupported-flags() {
363 local x NEW_CFLAGS NEW_CXXFLAGS
364
365 for x in ${CFLAGS} ; do
366 NEW_CFLAGS="${NEW_CFLAGS} $(test-flags ${x})"
367 done
368 for x in ${CXXFLAGS} ; do
369 NEW_CXXFLAGS="${NEW_CXXFLAGS} $(test-flags ${x})"
370 done
371
372 export CFLAGS=${NEW_CFLAGS}
373 export CXXFLAGS=${NEW_CXXFLAGS}
113} 374}
114 375
115get-flag() { 376get-flag() {
116 local findflag="$1" 377 local f findflag="$1"
117 378
379 # this code looks a little flaky but seems to work for
380 # everything we want ...
381 # for example, if CFLAGS="-march=i686":
382 # `get-flag -march` == "-march=i686"
383 # `get-flag march` == "i686"
118 for f in ${CFLAGS} ${CXXFLAGS} ; do 384 for f in ${CFLAGS} ${CXXFLAGS} ; do
119 if [ "${f/${findflag}}" != "${f}" ] ; then 385 if [ "${f/${findflag}}" != "${f}" ] ; then
120 echo "${f/-${findflag}=}" 386 printf "%s\n" "${f/-${findflag}=}"
121 return 387 return 0
122 fi 388 fi
123 done 389 done
390 return 1
124} 391}
392
393# DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs
394has_hardened() {
395 addwrite "/dev/stderr"
396 ewarn "has_hardened: deprecated, please use gcc-specs-{relro,now}()!" \
397 >/dev/stderr
398
399 test_version_info Hardened && return 0
400 # The specs file wont exist unless gcc has GCC_SPECS support
401 [[ -f ${GCC_SPECS} && ${GCC_SPECS} != ${GCC_SPECS/hardened/} ]]
402}
403
404# DEPRECATED - use gcc-specs-pie from toolchain-funcs
405# indicate whether PIC is set
406has_pic() {
407 addwrite "/dev/stderr"
408 ewarn "has_pic: deprecated, please use gcc-specs-pie()!" >/dev/stderr
409
410 [[ ${CFLAGS/-fPIC} != ${CFLAGS} || \
411 ${CFLAGS/-fpic} != ${CFLAGS} || \
412 -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__) ]]
413}
414
415# DEPRECATED - use gcc-specs-pie from toolchain-funcs
416# indicate whether PIE is set
417has_pie() {
418 addwrite "/dev/stderr"
419 ewarn "has_pie: deprecated, please use gcc-specs-pie()!" >/dev/stderr
420
421 [[ ${CFLAGS/-fPIE} != ${CFLAGS} || \
422 ${CFLAGS/-fpie} != ${CFLAGS} || \
423 -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIE__) || \
424 -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__) ]]
425 # test PIC while waiting for specs to be updated to generate __PIE__
426}
427
428# DEPRECATED - use gcc-specs-ssp from toolchain-funcs
429# indicate whether code for SSP is being generated for all functions
430has_ssp_all() {
431 addwrite "/dev/stderr"
432 ewarn "has_ssp_all: deprecated, please use gcc-specs-ssp()!" >/dev/stderr
433
434 # note; this matches only -fstack-protector-all
435 [[ ${CFLAGS/-fstack-protector-all} != ${CFLAGS} || \
436 -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__) ]] || \
437 gcc-specs-ssp
438}
439
440# DEPRECATED - use gcc-specs-ssp from toolchain-funcs
441# indicate whether code for SSP is being generated
442has_ssp() {
443 addwrite "/dev/stderr"
444 ewarn "has_ssp: deprecated, please use gcc-specs-ssp()!" >/dev/stderr
445
446 # note; this matches both -fstack-protector and -fstack-protector-all
447 [[ ${CFLAGS/-fstack-protector} != ${CFLAGS} || \
448 -n $(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__) ]] || \
449 gcc-specs-ssp
450}
451
452has_m64() {
453 # this doesnt test if the flag is accepted, it tests if the flag
454 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
455 # please dont replace this function with test_flag in some future
456 # clean-up!
457
458 local temp="$(emktemp)"
459 echo "int main() { return(0); }" > "${temp}".c
460 MY_CC=$(tc-getCC)
461 ${MY_CC/ .*/} -m64 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1
462 local ret=$?
463 rm -f "${temp}".c
464 [[ ${ret} != 1 ]] && return 0
465 return 1
466}
467
468has_m32() {
469 # this doesnt test if the flag is accepted, it tests if the flag
470 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
471 # please dont replace this function with test_flag in some future
472 # clean-up!
473
474 [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0
475
476 local temp=$(emktemp)
477 echo "int main() { return(0); }" > "${temp}".c
478 MY_CC=$(tc-getCC)
479 ${MY_CC/ .*/} -m32 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1
480 local ret=$?
481 rm -f "${temp}".c
482 [[ ${ret} != 1 ]] && return 0
483 return 1
484}
485
486replace-sparc64-flags() {
487 local SPARC64_CPUS="ultrasparc3 ultrasparc v9"
488
489 if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then
490 for x in ${SPARC64_CPUS}; do
491 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}"
492 done
493 else
494 for x in ${SPARC64_CPUS}; do
495 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
496 done
497 fi
498
499 if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then
500 for x in ${SPARC64_CPUS}; do
501 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}"
502 done
503 else
504 for x in ${SPARC64_CPUS}; do
505 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
506 done
507 fi
508
509 export CFLAGS CXXFLAGS
510}
511
512append-ldflags() {
513 export LDFLAGS="${LDFLAGS} $*"
514 return 0
515}
516
517filter-ldflags() {
518 local x
519
520 # we do this fancy spacing stuff so as to not filter
521 # out part of a flag ... we want flag atoms ! :D
522 LDFLAGS=" ${LDFLAGS} "
523 for x in "$@" ; do
524 LDFLAGS=${LDFLAGS// ${x} / }
525 done
526 [[ -z ${LDFLAGS// } ]] \
527 && LDFLAGS="" \
528 || LDFLAGS=${LDFLAGS:1:${#LDFLAGS}-2}
529 export LDFLAGS
530 return 0
531}
532
533# Turn C style ldflags (-Wl,-foo) into straight ldflags
534raw-ldflags() {
535 local x input="$@"
536 [[ -z ${input} ]] && input=${LDFLAGS}
537 set --
538 for x in ${input} ; do
539 x=${x#-Wl,}
540 set -- "$@" ${x//,/ }
541 done
542 echo "$@"
543}
544
545fstack-flags() {
546 if gcc-specs-ssp; then
547 [ -z "`is-flag -fno-stack-protector`" ] &&
548 export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`"
549 fi
550 return 0
551}
552
553# This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>,
554# bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more
555# fixes.
556#
557# Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3
558gcc2-flags() {
559 if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then
560 CFLAGS=${CFLAGS//-mtune=/-mcpu=}
561 CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=}
562 fi
563
564 replace-cpu-flags k6-{2,3} k6
565 replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686
566
567 replace-cpu-flags pentium-mmx i586
568 replace-cpu-flags pentium{2,3,4} i686
569
570 replace-cpu-flags ev6{7,8} ev6
571
572 export CFLAGS CXXFLAGS
573}
574
575# Gets the flags needed for "NOW" binding
576bindnow-flags() {
577 case $($(tc-getLD) -v 2>&1 </dev/null) in
578 *GNU* | *'with BFD'*) # GNU ld
579 echo "-Wl,-z,now" ;;
580 *Apple*) # Darwin ld
581 echo "-bind_at_load" ;;
582 *)
583 # Some linkers just recognize -V instead of -v
584 case $($(tc-getLD) -V 2>&1 </dev/null) in
585 *Solaris*) # Solaris accept almost the same GNU options
586 echo "-Wl,-z,now" ;;
587 esac
588 ;;
589 esac
590}

Legend:
Removed from v.1.11  
changed lines
  Added in v.1.103

  ViewVC Help
Powered by ViewVC 1.1.20