/[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 1.163 Revision 1.184
1# Copyright 1999-2011 Gentoo Foundation 1# Copyright 1999-2012 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# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.163 2011/12/28 06:28:55 dirtyepic Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.184 2012/11/29 23:27:32 vapier Exp $
4 4
5# @ECLASS: flag-o-matic.eclass 5# @ECLASS: flag-o-matic.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# toolchain@gentoo.org 7# toolchain@gentoo.org
8# @BLURB: common functions to manipulate and query toolchain flags 8# @BLURB: common functions to manipulate and query toolchain flags
13if [[ ${___ECLASS_ONCE_FLAG_O_MATIC} != "recur -_+^+_- spank" ]] ; then 13if [[ ${___ECLASS_ONCE_FLAG_O_MATIC} != "recur -_+^+_- spank" ]] ; then
14___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank" 14___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank"
15 15
16inherit eutils toolchain-funcs multilib 16inherit eutils toolchain-funcs multilib
17 17
18################ DEPRECATED functions ################ 18# Return all the flag variables that our high level funcs operate on.
19# The following are still present to avoid breaking existing 19all-flag-vars() {
20# code more than necessary; however they are deprecated. Please 20 echo {C,CPP,CXX,CCAS,F,FC,LD}FLAGS
21# use gcc-specs-* from toolchain-funcs.eclass instead, if you 21}
22# need to know which hardened techs are active in the compiler.
23# See bug #100974
24#
25# has_hardened
26# has_pie
27# has_pic
28# has_ssp_all
29# has_ssp
30 22
31
32# {C,CXX,F,FC}FLAGS that we allow in strip-flags 23# {C,CPP,CXX,CCAS,F,FC,LD}FLAGS that we allow in strip-flags
33# Note: shell globs and character lists are allowed 24# Note: shell globs and character lists are allowed
34setup-allowed-flags() { 25setup-allowed-flags() {
35 ALLOWED_FLAGS="-pipe" 26 ALLOWED_FLAGS="-pipe"
36 ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune" 27 ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune"
37 ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all" 28 ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all"
52 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ 43 -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \
53 -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ 44 -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \
54 -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \ 45 -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \
55 -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \ 46 -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \
56 -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \ 47 -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \
57 -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -D* -U*" 48 -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -mfloat-abi=* \
49 -D* -U*"
58 50
59 # 4.5 51 # 4.5
60 ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" 52 ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp"
61 # 4.6 53 # 4.6
62 ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" 54 ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm"
55 # 4.7
56 ALLOWED_FLAGS+=" -mno-avx2 -mno-bmi2 -mno-fma -mno-lzcnt"
57
58 # CPPFLAGS and LDFLAGS
59 ALLOWED_FLAGS+=" -I* -L* -R* -Wl,*"
63 60
64 export ALLOWED_FLAGS 61 export ALLOWED_FLAGS
65 return 0 62 return 0
66} 63}
67 64
92 89
93# Remove occurrences of strings from variable given in $1 90# Remove occurrences of strings from variable given in $1
94# Strings removed are matched as globs, so for example 91# Strings removed are matched as globs, so for example
95# '-O*' would remove -O1, -O2 etc. 92# '-O*' would remove -O1, -O2 etc.
96_filter-var() { 93_filter-var() {
97 local f x VAR VAL 94 local f x var=$1 new=()
98 declare -a new
99
100 VAR=$1
101 shift 95 shift
102 eval VAL=\${${VAR}} 96
103 for f in ${VAL}; do 97 for f in ${!var} ; do
104 for x in "$@"; do 98 for x in "$@" ; do
105 # Note this should work with globs like -O* 99 # Note this should work with globs like -O*
106 [[ ${f} == ${x} ]] && continue 2 100 [[ ${f} == ${x} ]] && continue 2
107 done 101 done
108 eval new\[\${\#new\[@]}]=\${f} 102 new+=( "${f}" )
109 done 103 done
110 eval export ${VAR}=\${new\[*]} 104 eval export ${var}=\""${new[*]}"\"
111} 105}
112 106
113# @FUNCTION: filter-flags 107# @FUNCTION: filter-flags
114# @USAGE: <flags> 108# @USAGE: <flags>
115# @DESCRIPTION: 109# @DESCRIPTION:
116# Remove particular <flags> from {C,CPP,CXX,F,FC}FLAGS. Accepts shell globs. 110# Remove particular <flags> from {C,CPP,CXX,CCAS,F,FC,LD}FLAGS. Accepts shell globs.
117filter-flags() { 111filter-flags() {
118 _filter-hardened "$@" 112 _filter-hardened "$@"
113 local v
114 for v in $(all-flag-vars) ; do
119 _filter-var CFLAGS "$@" 115 _filter-var ${v} "$@"
120 _filter-var CPPFLAGS "$@" 116 done
121 _filter-var CXXFLAGS "$@"
122 _filter-var FFLAGS "$@"
123 _filter-var FCFLAGS "$@"
124 return 0 117 return 0
125} 118}
126 119
127# @FUNCTION: filter-lfs-flags 120# @FUNCTION: filter-lfs-flags
128# @DESCRIPTION: 121# @DESCRIPTION:
134 # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) 127 # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...)
135 # _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t) 128 # _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t)
136 filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE 129 filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
137} 130}
138 131
132# @FUNCTION: filter-ldflags
133# @USAGE: <flags>
134# @DESCRIPTION:
135# Remove particular <flags> from LDFLAGS. Accepts shell globs.
136filter-ldflags() {
137 _filter-var LDFLAGS "$@"
138 return 0
139}
140
139# @FUNCTION: append-cppflags 141# @FUNCTION: append-cppflags
140# @USAGE: <flags> 142# @USAGE: <flags>
141# @DESCRIPTION: 143# @DESCRIPTION:
142# Add extra <flags> to the current CPPFLAGS. 144# Add extra <flags> to the current CPPFLAGS.
143append-cppflags() { 145append-cppflags() {
184 [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" 186 [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments"
185 # see comments in filter-lfs-flags func for meaning of these 187 # see comments in filter-lfs-flags func for meaning of these
186 append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE 188 append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
187} 189}
188 190
191# @FUNCTION: append-ldflags
192# @USAGE: <flags>
193# @DESCRIPTION:
194# Add extra <flags> to the current LDFLAGS.
195append-ldflags() {
196 [[ $# -eq 0 ]] && return 0
197 local flag
198 for flag in "$@"; do
199 [[ ${flag} == -l* ]] && \
200 eqawarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS"
201 done
202
203 export LDFLAGS="${LDFLAGS} $*"
204 return 0
205}
206
189# @FUNCTION: append-flags 207# @FUNCTION: append-flags
190# @USAGE: <flags> 208# @USAGE: <flags>
191# @DESCRIPTION: 209# @DESCRIPTION:
192# Add extra <flags> to your current {C,CXX,F,FC}FLAGS. 210# Add extra <flags> to your current {C,CXX,F,FC}FLAGS.
193append-flags() { 211append-flags() {
194 [[ $# -eq 0 ]] && return 0 212 [[ $# -eq 0 ]] && return 0
213 case " $* " in
214 *' '-[DIU]*) eqawarn 'please use append-cppflags for preprocessor flags' ;;
215 *' '-L*|\
216 *' '-Wl,*) eqawarn 'please use append-ldflags for linker flags' ;;
217 esac
195 append-cflags "$@" 218 append-cflags "$@"
196 append-cxxflags "$@" 219 append-cxxflags "$@"
197 append-fflags "$@" 220 append-fflags "$@"
198 return 0 221 return 0
199} 222}
201# @FUNCTION: replace-flags 224# @FUNCTION: replace-flags
202# @USAGE: <old> <new> 225# @USAGE: <old> <new>
203# @DESCRIPTION: 226# @DESCRIPTION:
204# Replace the <old> flag with <new>. Accepts shell globs for <old>. 227# Replace the <old> flag with <new>. Accepts shell globs for <old>.
205replace-flags() { 228replace-flags() {
206 [[ $# != 2 ]] \
207 && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ 229 [[ $# != 2 ]] && die "Usage: replace-flags <old flag> <new flag>"
208 && die "replace-flags takes 2 arguments, not $#"
209 230
210 local f fset 231 local f var new
211 declare -a new_CFLAGS new_CXXFLAGS new_FFLAGS new_FCFLAGS 232 for var in $(all-flag-vars) ; do
212
213 for fset in CFLAGS CXXFLAGS FFLAGS FCFLAGS; do
214 # Looping over the flags instead of using a global 233 # Looping over the flags instead of using a global
215 # substitution ensures that we're working with flag atoms. 234 # substitution ensures that we're working with flag atoms.
216 # Otherwise globs like -O* have the potential to wipe out the 235 # Otherwise globs like -O* have the potential to wipe out the
217 # list of flags. 236 # list of flags.
237 new=()
218 for f in ${!fset}; do 238 for f in ${!var} ; do
219 # Note this should work with globs like -O* 239 # Note this should work with globs like -O*
220 [[ ${f} == ${1} ]] && f=${2} 240 [[ ${f} == ${1} ]] && f=${2}
221 eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} 241 new+=( "${f}" )
222 done 242 done
223 eval export ${fset}=\${new_${fset}\[*]} 243 eval export ${var}=\""${new[*]}"\"
224 done 244 done
225 245
226 return 0 246 return 0
227} 247}
228 248
243 done 263 done
244 return 0 264 return 0
245} 265}
246 266
247_is_flagq() { 267_is_flagq() {
248 local x 268 local x var
269 eval var=\""\${$1[*]}"\"
249 for x in ${!1} ; do 270 for x in ${var} ; do
250 [[ ${x} == $2 ]] && return 0 271 [[ ${x} == $2 ]] && return 0
251 done 272 done
252 return 1 273 return 1
253} 274}
254 275
256# @USAGE: <flag> 277# @USAGE: <flag>
257# @DESCRIPTION: 278# @DESCRIPTION:
258# Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. 279# Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs.
259is-flagq() { 280is-flagq() {
260 [[ -n $2 ]] && die "Usage: is-flag <flag>" 281 [[ -n $2 ]] && die "Usage: is-flag <flag>"
261 _is_flagq CFLAGS $1 || _is_flagq CXXFLAGS $1 || _is_flagq FFLAGS $1 || _is_flagq FCFLAGS $1 282
283 local var
284 for var in $(all-flag-vars) ; do
285 _is_flagq ${var} "$1" && return 0
286 done
287 return 1
262} 288}
263 289
264# @FUNCTION: is-flag 290# @FUNCTION: is-flag
265# @USAGE: <flag> 291# @USAGE: <flag>
266# @DESCRIPTION: 292# @DESCRIPTION:
320 return 0 346 return 0
321} 347}
322 348
323# @FUNCTION: strip-flags 349# @FUNCTION: strip-flags
324# @DESCRIPTION: 350# @DESCRIPTION:
325# Strip C[XX]FLAGS of everything except known good/safe flags. 351# Strip *FLAGS of everything except known good/safe flags. This runs over all
352# flags returned by all_flag_vars().
326strip-flags() { 353strip-flags() {
327 local x y flag NEW_CFLAGS NEW_CXXFLAGS NEW_FFLAGS NEW_FCFLAGS 354 local x y var
328 355
329 setup-allowed-flags 356 setup-allowed-flags
330 357
331 local NEW_CFLAGS=""
332 local NEW_CXXFLAGS=""
333 local NEW_FFLAGS=""
334 local NEW_FCFLAGS=""
335
336 set -f # disable pathname expansion 358 set -f # disable pathname expansion
337 359
338 for x in ${CFLAGS}; do 360 for var in $(all-flag-vars) ; do
361 local new=()
362
363 for x in ${!var} ; do
364 local flag=${x%%=*}
339 for y in ${ALLOWED_FLAGS}; do 365 for y in ${ALLOWED_FLAGS} ; do
340 flag=${x%%=*}
341 if [ "${flag%%${y}}" = "" ] ; then 366 if [[ -z ${flag%%${y}} ]] ; then
342 NEW_CFLAGS="${NEW_CFLAGS} ${x}" 367 new+=( "${x}" )
343 break 368 break
344 fi 369 fi
345 done 370 done
346 done 371 done
347 372
348 for x in ${CXXFLAGS}; do
349 for y in ${ALLOWED_FLAGS}; do
350 flag=${x%%=*}
351 if [ "${flag%%${y}}" = "" ] ; then
352 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
353 break
354 fi
355 done
356 done
357
358 for x in ${FFLAGS}; do
359 for y in ${ALLOWED_FLAGS}; do
360 flag=${x%%=*}
361 if [ "${flag%%${y}}" = "" ] ; then
362 NEW_FFLAGS="${NEW_FFLAGS} ${x}"
363 break
364 fi
365 done
366 done
367
368 for x in ${FCFLAGS}; do
369 for y in ${ALLOWED_FLAGS}; do
370 flag=${x%%=*}
371 if [ "${flag%%${y}}" = "" ] ; then
372 NEW_FCFLAGS="${NEW_FCFLAGS} ${x}"
373 break
374 fi
375 done
376 done
377
378 # In case we filtered out all optimization flags fallback to -O2 373 # In case we filtered out all optimization flags fallback to -O2
379 if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then 374 if _is_flagq ${var} "-O*" && ! _is_flagq new "-O*" ; then
380 NEW_CFLAGS="${NEW_CFLAGS} -O2" 375 new+=( -O2 )
381 fi 376 fi
382 if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then 377
383 NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" 378 eval export ${var}=\""${new[*]}"\"
384 fi 379 done
385 if [ "${FFLAGS/-O}" != "${FFLAGS}" -a "${NEW_FFLAGS/-O}" = "${NEW_FFLAGS}" ]; then
386 NEW_FFLAGS="${NEW_FFLAGS} -O2"
387 fi
388 if [ "${FCFLAGS/-O}" != "${FCFLAGS}" -a "${NEW_FCFLAGS/-O}" = "${NEW_FCFLAGS}" ]; then
389 NEW_FCFLAGS="${NEW_FCFLAGS} -O2"
390 fi
391 380
392 set +f # re-enable pathname expansion 381 set +f # re-enable pathname expansion
393 382
394 export CFLAGS="${NEW_CFLAGS}"
395 export CXXFLAGS="${NEW_CXXFLAGS}"
396 export FFLAGS="${NEW_FFLAGS}"
397 export FCFLAGS="${NEW_FCFLAGS}"
398 return 0 383 return 0
399} 384}
400 385
401test-flag-PROG() { 386test-flag-PROG() {
402 local comp=$1 387 local comp=$1
403 local flags="$2" 388 local lang=$2
389 local flag=$3
404 390
405 [[ -z ${comp} || -z ${flags} ]] && return 1 391 [[ -z ${comp} || -z ${flag} ]] && return 1
406 392
407 # use -c so we can test the assembler as well 393 # use -c so we can test the assembler as well
408 local PROG=$(tc-get${comp}) 394 local PROG=$(tc-get${comp})
409 ${PROG} ${flags} -c -o /dev/null -xc /dev/null \ 395 ${PROG} "${flag}" -c -o /dev/null -x${lang} - < /dev/null \
410 > /dev/null 2>&1 396 > /dev/null 2>&1
411} 397}
412 398
413# @FUNCTION: test-flag-CC 399# @FUNCTION: test-flag-CC
414# @USAGE: <flag> 400# @USAGE: <flag>
415# @DESCRIPTION: 401# @DESCRIPTION:
416# Returns shell true if <flag> is supported by the C compiler, else returns shell false. 402# Returns shell true if <flag> is supported by the C compiler, else returns shell false.
417test-flag-CC() { test-flag-PROG "CC" "$1"; } 403test-flag-CC() { test-flag-PROG "CC" c "$1"; }
418 404
419# @FUNCTION: test-flag-CXX 405# @FUNCTION: test-flag-CXX
420# @USAGE: <flag> 406# @USAGE: <flag>
421# @DESCRIPTION: 407# @DESCRIPTION:
422# Returns shell true if <flag> is supported by the C++ compiler, else returns shell false. 408# Returns shell true if <flag> is supported by the C++ compiler, else returns shell false.
423test-flag-CXX() { test-flag-PROG "CXX" "$1"; } 409test-flag-CXX() { test-flag-PROG "CXX" c++ "$1"; }
424 410
425# @FUNCTION: test-flag-F77 411# @FUNCTION: test-flag-F77
426# @USAGE: <flag> 412# @USAGE: <flag>
427# @DESCRIPTION: 413# @DESCRIPTION:
428# Returns shell true if <flag> is supported by the Fortran 77 compiler, else returns shell false. 414# Returns shell true if <flag> is supported by the Fortran 77 compiler, else returns shell false.
429test-flag-F77() { test-flag-PROG "F77" "$1"; } 415test-flag-F77() { test-flag-PROG "F77" f77 "$1"; }
430 416
431# @FUNCTION: test-flag-FC 417# @FUNCTION: test-flag-FC
432# @USAGE: <flag> 418# @USAGE: <flag>
433# @DESCRIPTION: 419# @DESCRIPTION:
434# Returns shell true if <flag> is supported by the Fortran 90 compiler, else returns shell false. 420# Returns shell true if <flag> is supported by the Fortran 90 compiler, else returns shell false.
435test-flag-FC() { test-flag-PROG "FC" "$1"; } 421test-flag-FC() { test-flag-PROG "FC" f95 "$1"; }
436 422
437test-flags-PROG() { 423test-flags-PROG() {
438 local comp=$1 424 local comp=$1
439 local flags 425 local flags=()
440 local x 426 local x
441 427
442 shift 428 shift
443 429
444 [[ -z ${comp} ]] && return 1 430 [[ -z ${comp} ]] && return 1
445 431
446 for x in "$@" ; do 432 for x ; do
447 test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" 433 test-flag-${comp} "${x}" && flags+=( "${x}" )
448 done 434 done
449 435
450 echo "${flags}" 436 echo "${flags[*]}"
451 437
452 # Just bail if we dont have any flags 438 # Just bail if we dont have any flags
453 [[ -n ${flags} ]] 439 [[ ${#flags[@]} -gt 0 ]]
454} 440}
455 441
456# @FUNCTION: test-flags-CC 442# @FUNCTION: test-flags-CC
457# @USAGE: <flags> 443# @USAGE: <flags>
458# @DESCRIPTION: 444# @DESCRIPTION:
510# @FUNCTION: get-flag 496# @FUNCTION: get-flag
511# @USAGE: <flag> 497# @USAGE: <flag>
512# @DESCRIPTION: 498# @DESCRIPTION:
513# Find and echo the value for a particular flag. Accepts shell globs. 499# Find and echo the value for a particular flag. Accepts shell globs.
514get-flag() { 500get-flag() {
515 local f findflag="$1" 501 local f var findflag="$1"
516 502
517 # this code looks a little flaky but seems to work for 503 # this code looks a little flaky but seems to work for
518 # everything we want ... 504 # everything we want ...
519 # for example, if CFLAGS="-march=i686": 505 # for example, if CFLAGS="-march=i686":
520 # `get-flag -march` == "-march=i686" 506 # `get-flag -march` == "-march=i686"
521 # `get-flag march` == "i686" 507 # `get-flag march` == "i686"
522 for f in ${CFLAGS} ${CXXFLAGS} ${FFLAGS} ${FCFLAGS} ; do 508 for var in $(all-flag-vars) ; do
509 for f in ${!var} ; do
523 if [ "${f/${findflag}}" != "${f}" ] ; then 510 if [ "${f/${findflag}}" != "${f}" ] ; then
524 printf "%s\n" "${f/-${findflag}=}" 511 printf "%s\n" "${f/-${findflag}=}"
525 return 0 512 return 0
526 fi 513 fi
514 done
527 done 515 done
528 return 1 516 return 1
529} 517}
530
531# DEAD FUNCS. Remove by Dec 2011.
532test_flag() { die "$0: deprecated, please use test-flags()!" ; }
533has_hardened() { die "$0: deprecated, please use gcc-specs-{relro,now}()!" ; }
534has_pic() { die "$0: deprecated, please use gcc-specs-pie()!" ; }
535has_pie() { die "$0: deprecated, please use gcc-specs-pie()!" ; }
536has_ssp_all() { die "$0: deprecated, please use gcc-specs-ssp()!" ; }
537has_ssp() { die "$0: deprecated, please use gcc-specs-ssp()!" ; }
538 518
539# @FUNCTION: has_m64 519# @FUNCTION: has_m64
540# @DESCRIPTION: 520# @DESCRIPTION:
541# This doesn't test if the flag is accepted, it tests if the flag actually 521# This doesn't test if the flag is accepted, it tests if the flag actually
542# WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works 522# WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works
543# return code is 0, else the return code is 1. 523# return code is 0, else the return code is 1.
544has_m64() { 524has_m64() {
525 eqawarn "${FUNCNAME}: don't use this anymore"
526
545 # this doesnt test if the flag is accepted, it tests if the flag 527 # this doesnt test if the flag is accepted, it tests if the flag
546 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! 528 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
547 # please dont replace this function with test_flag in some future 529 # please dont replace this function with test_flag in some future
548 # clean-up! 530 # clean-up!
549 531
555 rm -f "${temp}".c 537 rm -f "${temp}".c
556 [[ ${ret} != 1 ]] && return 0 538 [[ ${ret} != 1 ]] && return 0
557 return 1 539 return 1
558} 540}
559 541
560# @FUNCTION: has_m32
561# @DESCRIPTION:
562# This doesn't test if the flag is accepted, it tests if the flag actually
563# WORKS. Non-mulilib gcc will take both -m32 and -64. If the flag works return
564# code is 0, else return code is 1.
565has_m32() { 542has_m32() {
566 # this doesnt test if the flag is accepted, it tests if the flag 543 die "${FUNCNAME}: don't use this anymore"
567 # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
568 # please dont replace this function with test_flag in some future
569 # clean-up!
570
571 [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0
572
573 local temp=$(emktemp)
574 echo "int main() { return(0); }" > "${temp}".c
575 MY_CC=$(tc-getCC)
576 ${MY_CC/ .*/} -m32 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1
577 local ret=$?
578 rm -f "${temp}".c
579 [[ ${ret} != 1 ]] && return 0
580 return 1
581} 544}
582 545
583# @FUNCTION: replace-sparc64-flags 546# @FUNCTION: replace-sparc64-flags
584# @DESCRIPTION: 547# @DESCRIPTION:
585# Sets mcpu to v8 and uses the original value as mtune if none specified. 548# Sets mcpu to v8 and uses the original value as mtune if none specified.
619 for flag in "$@"; do 582 for flag in "$@"; do
620 [[ ${flag} == -l* ]] && flag=${flag#-l} 583 [[ ${flag} == -l* ]] && flag=${flag#-l}
621 export LIBS="${LIBS} -l${flag}" 584 export LIBS="${LIBS} -l${flag}"
622 done 585 done
623 586
624 return 0
625}
626
627# @FUNCTION: append-ldflags
628# @USAGE: <flags>
629# @DESCRIPTION:
630# Add extra <flags> to the current LDFLAGS.
631append-ldflags() {
632 [[ $# -eq 0 ]] && return 0
633 local flag
634 for flag in "$@"; do
635 [[ ${flag} == -l* ]] && \
636 ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS"
637 done
638
639 export LDFLAGS="${LDFLAGS} $*"
640 return 0
641}
642
643# @FUNCTION: filter-ldflags
644# @USAGE: <flags>
645# @DESCRIPTION:
646# Remove particular <flags> from LDFLAGS. Accepts shell globs.
647filter-ldflags() {
648 _filter-var LDFLAGS "$@"
649 return 0 587 return 0
650} 588}
651 589
652# @FUNCTION: raw-ldflags 590# @FUNCTION: raw-ldflags
653# @USAGE: [flags] 591# @USAGE: [flags]
660raw-ldflags() { 598raw-ldflags() {
661 local x input="$@" 599 local x input="$@"
662 [[ -z ${input} ]] && input=${LDFLAGS} 600 [[ -z ${input} ]] && input=${LDFLAGS}
663 set -- 601 set --
664 for x in ${input} ; do 602 for x in ${input} ; do
603 case ${x} in
604 -Wl,*)
665 x=${x#-Wl,} 605 x=${x#-Wl,}
666 set -- "$@" ${x//,/ } 606 set -- "$@" ${x//,/ }
607 ;;
608 *) # Assume it's a compiler driver flag, so throw it away #441808
609 ;;
610 esac
667 done 611 done
668 echo "$@" 612 echo "$@"
669} 613}
670 614
671# @FUNCTION: no-as-needed 615# @FUNCTION: no-as-needed

Legend:
Removed from v.1.163  
changed lines
  Added in v.1.184

  ViewVC Help
Powered by ViewVC 1.1.20