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Revision 1.93 - (hide annotations) (download)
Tue Sep 27 01:06:47 2005 UTC (8 years, 11 months ago) by vapier
Branch: MAIN
Changes since 1.92: +7 -1 lines
add some sanity checks to make sure people use these functions correctly

1 vapier 1.84 # Copyright 1999-2005 Gentoo Foundation
2 verwilst 1.1 # Distributed under the terms of the GNU General Public License v2
3 vapier 1.93 # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.92 2005/08/01 10:50:55 kevquinn Exp $
4 azarah 1.8
5 vapier 1.63
6 vapier 1.72 # need access to emktemp()
7 eradicator 1.80 inherit eutils toolchain-funcs multilib
8 vapier 1.72
9 verwilst 1.2 #
10 vapier 1.18 #### filter-flags <flags> ####
11 verwilst 1.3 # Remove particular flags from C[XX]FLAGS
12 vapier 1.18 # Matches only complete flags
13 verwilst 1.2 #
14 vapier 1.18 #### append-flags <flags> ####
15 verwilst 1.3 # Add extra flags to your current C[XX]FLAGS
16     #
17 verwilst 1.4 #### replace-flags <orig.flag> <new.flag> ###
18 verwilst 1.3 # Replace a flag by another one
19     #
20 vapier 1.70 #### replace-cpu-flags <old.cpus> <new.cpu> ###
21 vapier 1.37 # Replace march/mcpu flags that specify <old.cpus>
22     # with flags that specify <new.cpu>
23     #
24 danarmak 1.7 #### is-flag <flag> ####
25     # Returns "true" if flag is set in C[XX]FLAGS
26 vapier 1.18 # Matches only complete a flag
27 danarmak 1.7 #
28 azarah 1.8 #### strip-flags ####
29     # Strip C[XX]FLAGS of everything except known
30     # good options.
31     #
32 puggy 1.29 #### strip-unsupported-flags ####
33     # Strip C[XX]FLAGS of any flags not supported by
34     # installed version of gcc
35     #
36 vapier 1.10 #### get-flag <flag> ####
37     # Find and echo the value for a particular flag
38     #
39 joker 1.16 #### replace-sparc64-flags ####
40     # Sets mcpu to v8 and uses the original value
41     # as mtune if none specified.
42     #
43 vapier 1.26 #### 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 solar 1.27 #
48     #### append-ldflags ####
49     # Add extra flags to your current LDFLAGS
50     #
51 solar 1.41 #### filter-ldflags <flags> ####
52     # Remove particular flags from LDFLAGS
53     # Matches only complete flags
54     #
55 solar 1.27 #### fstack-flags ####
56 pappy 1.50 # 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 solar 1.27 #
62 kevquinn 1.92 #
63     ################ DEPRECATED functions ################
64     # The following are still present to avoid breaking existing
65     # code more than necessary; however they are deprecated. Please
66     # use gcc-specs-* from toolchain-funcs.eclass instead, if you
67     # need to know which hardened techs are active in the compiler.
68     # See bug #100974
69     #
70     #### has_hardened ####
71     # Returns true if the compiler has 'Hardened' in its version string,
72     # (note; switched-spec vanilla compilers satisfy this condition) or
73     # the specs file name contains 'hardened'.
74     #
75     #### has_pie ####
76     # Returns true if the compiler by default or with current CFLAGS
77     # builds position-independent code.
78     #
79 solar 1.86 #### has_pic ####
80     # Returns true if the compiler by default or with current CFLAGS
81     # builds position-independent code.
82     #
83     #### has_ssp_all ####
84     # Returns true if the compiler by default or with current CFLAGS
85     # generates stack smash protections for all functions
86     #
87     #### has_ssp ####
88     # Returns true if the compiler by default or with current CFLAGS
89     # generates stack smash protections for most vulnerable functions
90     #
91 verwilst 1.3
92 azarah 1.17 # C[XX]FLAGS that we allow in strip-flags
93 vapier 1.36 setup-allowed-flags() {
94 vapier 1.84 if [[ -z ${ALLOWED_FLAGS} ]] ; then
95 vapier 1.76 export ALLOWED_FLAGS="-pipe"
96     export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune"
97 vapier 1.87 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all"
98     export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking"
99 vapier 1.76 export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time"
100     export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3"
101 vapier 1.44 fi
102 vapier 1.65 # allow a bunch of flags that negate features / control ABI
103     ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all"
104 vapier 1.87 ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \
105     -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \
106     -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \
107     -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \
108 agriffis 1.90 -mieee -mieee-with-inexact \
109 vapier 1.91 -mtls-direct-seg-refs -mno-tls-direct-seg-refs \
110 vapier 1.87 -mflat -mno-flat -mno-faster-structs -mfaster-structs \
111     -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \
112     -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias"
113 vapier 1.36
114     # C[XX]FLAGS that we are think is ok, but needs testing
115     # NOTE: currently -Os have issues with gcc3 and K6* arch's
116     export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays"
117     return 0
118 aliz 1.24 }
119 verwilst 1.13
120 vapier 1.18 filter-flags() {
121 mr_bones_ 1.83 local x f fset
122 agriffis 1.61 declare -a new_CFLAGS new_CXXFLAGS
123 agriffis 1.58
124 vapier 1.36 for x in "$@" ; do
125 solar 1.27 case "${x}" in
126 solar 1.82 -fPIC|-fpic|-fPIE|-fpie|-pie)
127     append-flags `test_flag -fno-pie`;;
128     -fstack-protector|-fstack-protector-all)
129     fstack-flags;;
130 solar 1.27 esac
131     done
132 vapier 1.36
133 agriffis 1.61 for fset in CFLAGS CXXFLAGS; do
134 agriffis 1.64 # Looping over the flags instead of using a global
135     # substitution ensures that we're working with flag atoms.
136     # Otherwise globs like -O* have the potential to wipe out the
137     # list of flags.
138 agriffis 1.61 for f in ${!fset}; do
139     for x in "$@"; do
140     # Note this should work with globs like -O*
141     [[ ${f} == ${x} ]] && continue 2
142     done
143     eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f}
144     done
145     eval export ${fset}=\${new_${fset}\[*]}
146 verwilst 1.1 done
147 agriffis 1.61
148 vapier 1.36 return 0
149 verwilst 1.2 }
150    
151 vapier 1.40 filter-lfs-flags() {
152 vapier 1.93 [[ -n $@ ]] && die "filter-lfs-flags takes no arguments"
153 vapier 1.40 filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
154     }
155    
156 vapier 1.48 append-lfs-flags() {
157 vapier 1.93 [[ -n $@ ]] && die "append-lfs-flags takes no arguments"
158 vapier 1.48 append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
159     }
160    
161 vapier 1.18 append-flags() {
162 solar 1.82 [[ -z $* ]] && return 0
163 agriffis 1.58 export CFLAGS="${CFLAGS} $*"
164     export CXXFLAGS="${CXXFLAGS} $*"
165     [ -n "`is-flag -fno-stack-protector`" -o \
166     -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags
167 vapier 1.28 return 0
168 verwilst 1.1 }
169    
170 vapier 1.18 replace-flags() {
171 vapier 1.93 [[ $# != 2 ]] \
172     && echo && eerror "Usage: replace-flags <old flag> <new flag>" \
173     && die "replace-flags takes 2 arguments, not $#"
174    
175 mr_bones_ 1.83 local f fset
176 agriffis 1.64 declare -a new_CFLAGS new_CXXFLAGS
177    
178     for fset in CFLAGS CXXFLAGS; do
179     # Looping over the flags instead of using a global
180     # substitution ensures that we're working with flag atoms.
181     # Otherwise globs like -O* have the potential to wipe out the
182     # list of flags.
183     for f in ${!fset}; do
184     # Note this should work with globs like -O*
185     [[ ${f} == ${1} ]] && f=${2}
186     eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f}
187     done
188     eval export ${fset}=\${new_${fset}\[*]}
189     done
190    
191 vapier 1.28 return 0
192 danarmak 1.7 }
193    
194 vapier 1.37 replace-cpu-flags() {
195 vapier 1.70 local newcpu="$#" ; newcpu="${!newcpu}"
196     while [ $# -gt 1 ] ; do
197 agriffis 1.64 # quote to make sure that no globbing is done (particularly on
198     # ${oldcpu} prior to calling replace-flags
199 vapier 1.70 replace-flags "-march=${1}" "-march=${newcpu}"
200     replace-flags "-mcpu=${1}" "-mcpu=${newcpu}"
201     replace-flags "-mtune=${1}" "-mtune=${newcpu}"
202     shift
203 vapier 1.37 done
204     return 0
205     }
206    
207 danarmak 1.7 is-flag() {
208 agriffis 1.58 local x
209    
210 vapier 1.18 for x in ${CFLAGS} ${CXXFLAGS} ; do
211 agriffis 1.67 # Note this should work with globs like -mcpu=ultrasparc*
212     if [[ ${x} == ${1} ]]; then
213 azarah 1.8 echo true
214 vapier 1.18 return 0
215     fi
216 danarmak 1.7 done
217 vapier 1.18 return 1
218 verwilst 1.1 }
219 azarah 1.8
220 vapier 1.36 filter-mfpmath() {
221 agriffis 1.58 local orig_mfpmath new_math prune_math
222    
223 vapier 1.36 # save the original -mfpmath flag
224 agriffis 1.58 orig_mfpmath="`get-flag -mfpmath`"
225 vapier 1.36 # get the value of the current -mfpmath flag
226 agriffis 1.58 new_math=" `get-flag mfpmath | tr , ' '` "
227 vapier 1.36 # figure out which math values are to be removed
228 agriffis 1.58 prune_math=""
229 vapier 1.36 for prune_math in "$@" ; do
230     new_math="${new_math/ ${prune_math} / }"
231     done
232     new_math="`echo ${new_math:1:${#new_math}-2} | tr ' ' ,`"
233    
234     if [ -z "${new_math}" ] ; then
235     # if we're removing all user specified math values are
236     # slated for removal, then we just filter the flag
237     filter-flags ${orig_mfpmath}
238     else
239     # if we only want to filter some of the user specified
240     # math values, then we replace the current flag
241     replace-flags ${orig_mfpmath} -mfpmath=${new_math}
242     fi
243     return 0
244     }
245    
246 azarah 1.8 strip-flags() {
247 agriffis 1.58 local x y flag NEW_CFLAGS NEW_CXXFLAGS
248    
249 vapier 1.36 setup-allowed-flags
250    
251 azarah 1.8 local NEW_CFLAGS=""
252     local NEW_CXXFLAGS=""
253    
254 azarah 1.17 # Allow unstable C[XX]FLAGS if we are using unstable profile ...
255 vapier 1.84 if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then
256 azarah 1.17 ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}"
257     fi
258    
259 agriffis 1.58 set -f # disable pathname expansion
260 azarah 1.8
261 agriffis 1.58 for x in ${CFLAGS}; do
262     for y in ${ALLOWED_FLAGS}; do
263 lostlogic 1.14 flag=${x%%=*}
264 vapier 1.65 if [ "${flag%%${y}}" = "" ] ; then
265 lostlogic 1.14 NEW_CFLAGS="${NEW_CFLAGS} ${x}"
266     break
267 azarah 1.8 fi
268     done
269     done
270    
271 agriffis 1.58 for x in ${CXXFLAGS}; do
272     for y in ${ALLOWED_FLAGS}; do
273 lostlogic 1.14 flag=${x%%=*}
274 vapier 1.65 if [ "${flag%%${y}}" = "" ] ; then
275 lostlogic 1.14 NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}"
276     break
277 azarah 1.8 fi
278     done
279     done
280 azarah 1.30
281     # In case we filtered out all optimization flags fallback to -O2
282     if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then
283     NEW_CFLAGS="${NEW_CFLAGS} -O2"
284     fi
285     if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then
286     NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2"
287     fi
288 azarah 1.8
289 agriffis 1.58 set +f # re-enable pathname expansion
290 azarah 1.8
291     export CFLAGS="${NEW_CFLAGS}"
292     export CXXFLAGS="${NEW_CXXFLAGS}"
293 vapier 1.36 return 0
294 puggy 1.29 }
295    
296 vapier 1.36 test_flag() {
297 vapier 1.75 if $(tc-getCC) -S -xc "$@" -o "$(emktemp)" /dev/null &>/dev/null; then
298 agriffis 1.58 printf "%s\n" "$*"
299 vapier 1.36 return 0
300 puggy 1.29 fi
301 vapier 1.36 return 1
302 puggy 1.29 }
303    
304 agriffis 1.58 test_version_info() {
305 vapier 1.75 if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then
306 agriffis 1.58 return 0
307     else
308     return 1
309     fi
310     }
311    
312 puggy 1.29 strip-unsupported-flags() {
313 agriffis 1.58 local NEW_CFLAGS NEW_CXXFLAGS
314    
315 vapier 1.36 for x in ${CFLAGS} ; do
316 agriffis 1.58 NEW_CFLAGS="${NEW_CFLAGS} `test_flag ${x}`"
317 puggy 1.29 done
318 vapier 1.36 for x in ${CXXFLAGS} ; do
319 agriffis 1.58 NEW_CXXFLAGS="${NEW_CXXFLAGS} `test_flag ${x}`"
320 puggy 1.29 done
321    
322 vapier 1.36 export CFLAGS="${NEW_CFLAGS}"
323     export CXXFLAGS="${NEW_CXXFLAGS}"
324 azarah 1.8 }
325    
326 vapier 1.10 get-flag() {
327 agriffis 1.58 local f findflag="$1"
328    
329 vapier 1.36 # this code looks a little flaky but seems to work for
330     # everything we want ...
331     # for example, if CFLAGS="-march=i686":
332 agriffis 1.58 # `get-flag -march` == "-march=i686"
333     # `get-flag march` == "i686"
334 vapier 1.10 for f in ${CFLAGS} ${CXXFLAGS} ; do
335     if [ "${f/${findflag}}" != "${f}" ] ; then
336 agriffis 1.58 printf "%s\n" "${f/-${findflag}=}"
337 vapier 1.28 return 0
338 vapier 1.10 fi
339     done
340 vapier 1.28 return 1
341 joker 1.16 }
342    
343 kevquinn 1.92 # DEPRECATED - use gcc-specs-relro or gcc-specs-now from toolchain-funcs
344 solar 1.53 has_hardened() {
345 lv 1.69 test_version_info Hardened && return 0
346     # the specs file wont exist unless gcc has GCC_SPECS support
347     [ -f "${GCC_SPECS}" -a "${GCC_SPECS}" != "${GCC_SPECS/hardened/}" ] && \
348     return 0
349     return 1
350 solar 1.53 }
351    
352 kevquinn 1.92 # DEPRECATED - use gcc-specs-pie from toolchain-funcs
353 solar 1.81 # indicate whether PIC is set
354 tseng 1.42 has_pic() {
355     [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0
356     [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0
357 solar 1.81 [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__)" ] && return 0
358 tseng 1.42 return 1
359     }
360    
361 kevquinn 1.92 # DEPRECATED - use gcc-specs-pie from toolchain-funcs
362 solar 1.81 # indicate whether PIE is set
363 mr_bones_ 1.83 has_pie() {
364 tseng 1.43 [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0
365     [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0
366 solar 1.81 [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIE__)" ] && return 0
367     # test PIC while waiting for specs to be updated to generate __PIE__
368     [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__)" ] && return 0
369 tseng 1.42 return 1
370     }
371 mr_bones_ 1.83
372 kevquinn 1.92 # DEPRECATED - use gcc-specs-ssp from toolchain-funcs
373 solar 1.86 # indicate whether code for SSP is being generated for all functions
374     has_ssp_all() {
375     # note; this matches only -fstack-protector-all
376     [ "${CFLAGS/-fstack-protector-all}" != "${CFLAGS}" ] && return 0
377     [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__)" ] && return 0
378 kevquinn 1.92 gcc-specs-ssp && return 0
379 solar 1.86 return 1
380     }
381    
382 kevquinn 1.92 # DEPRECATED - use gcc-specs-ssp from toolchain-funcs
383 solar 1.81 # indicate whether code for SSP is being generated
384 tseng 1.42 has_ssp() {
385 solar 1.81 # note; this matches both -fstack-protector and -fstack-protector-all
386 tseng 1.42 [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0
387 solar 1.81 [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__)" ] && return 0
388 kevquinn 1.92 gcc-specs-ssp && return 0
389 tseng 1.42 return 1
390     }
391    
392 lv 1.56 has_m64() {
393 lv 1.62 # this doesnt test if the flag is accepted, it tests if the flag
394     # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
395     # please dont replace this function with test_flag in some future
396     # clean-up!
397 vapier 1.72 local temp="$(emktemp)"
398 lv 1.62 echo "int main() { return(0); }" > ${temp}.c
399 kugelfang 1.74 MY_CC=$(tc-getCC)
400     ${MY_CC/ .*/} -m64 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1
401 vapier 1.72 local ret=$?
402 lv 1.62 rm -f ${temp}.c
403     [ "$ret" != "1" ] && return 0
404     return 1
405 lv 1.56 }
406    
407     has_m32() {
408 lv 1.62 # this doesnt test if the flag is accepted, it tests if the flag
409     # actually -WORKS-. non-multilib gcc will take both -m32 and -m64!
410     # please dont replace this function with test_flag in some future
411     # clean-up!
412 eradicator 1.80
413     [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0
414    
415 vapier 1.72 local temp="$(emktemp)"
416 lv 1.62 echo "int main() { return(0); }" > ${temp}.c
417 kugelfang 1.74 MY_CC=$(tc-getCC)
418     ${MY_CC/ .*/} -m32 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1
419 vapier 1.72 local ret=$?
420 lv 1.62 rm -f ${temp}.c
421     [ "$ret" != "1" ] && return 0
422     return 1
423 lv 1.56 }
424    
425 vapier 1.18 replace-sparc64-flags() {
426 joker 1.16 local SPARC64_CPUS="ultrasparc v9"
427    
428 mr_bones_ 1.83 if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then
429 agriffis 1.58 for x in ${SPARC64_CPUS}; do
430 joker 1.16 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}"
431     done
432 mr_bones_ 1.83 else
433 agriffis 1.58 for x in ${SPARC64_CPUS}; do
434 joker 1.16 CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
435     done
436     fi
437 mr_bones_ 1.83
438     if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then
439 agriffis 1.58 for x in ${SPARC64_CPUS}; do
440 joker 1.16 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}"
441     done
442     else
443 agriffis 1.58 for x in ${SPARC64_CPUS}; do
444 joker 1.16 CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}"
445     done
446     fi
447 vapier 1.59
448     export CFLAGS CXXFLAGS
449 solar 1.27 }
450    
451     append-ldflags() {
452 vapier 1.59 export LDFLAGS="${LDFLAGS} $*"
453 vapier 1.28 return 0
454 solar 1.27 }
455    
456 solar 1.41 filter-ldflags() {
457 agriffis 1.58 local x
458    
459 solar 1.41 # we do this fancy spacing stuff so as to not filter
460     # out part of a flag ... we want flag atoms ! :D
461     LDFLAGS=" ${LDFLAGS} "
462     for x in "$@" ; do
463 vapier 1.84 LDFLAGS=${LDFLAGS// ${x} / }
464 solar 1.41 done
465 vapier 1.84 [[ -z ${LDFLAGS// } ]] \
466     && LDFLAGS="" \
467     || LDFLAGS=${LDFLAGS:1:${#LDFLAGS}-2}
468 vapier 1.59 export LDFLAGS
469 solar 1.41 return 0
470     }
471    
472 solar 1.27 fstack-flags() {
473 kevquinn 1.92 if gcc-specs-ssp; then
474 mr_bones_ 1.83 [ -z "`is-flag -fno-stack-protector`" ] &&
475 agriffis 1.58 export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`"
476 solar 1.35 fi
477 agriffis 1.58 return 0
478 vapier 1.10 }
479 vapier 1.73
480     # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>,
481     # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more
482     # fixes.
483     #
484     # Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3
485     gcc2-flags() {
486 vapier 1.85 if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then
487     CFLAGS=${CFLAGS//-mtune=/-mcpu=}
488     CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=}
489 vapier 1.73 fi
490    
491 vapier 1.85 replace-cpu-flags k6-{2,3} k6
492     replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686
493    
494     replace-cpu-flags pentium-mmx i586
495     replace-cpu-flags pentium{2,3,4} i686
496    
497     replace-cpu-flags ev6{7,8} ev6
498    
499 vapier 1.73 export CFLAGS CXXFLAGS
500     }

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