| 1 | # Copyright 1999-2004 Gentoo Foundation |
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 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.62 2004/07/15 04:59:44 lv Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.90 2005/07/11 19:28:20 agriffis Exp $ |
| 4 | # |
|
|
| 5 | # Author Bart Verwilst <verwilst@gentoo.org> |
|
|
| 6 | |
4 | |
| 7 | ECLASS=flag-o-matic |
5 | |
| 8 | INHERITED="$INHERITED $ECLASS" |
6 | # need access to emktemp() |
| 9 | IUSE="$IUSE debug" |
7 | inherit eutils toolchain-funcs multilib |
| 10 | |
8 | |
| 11 | # |
9 | # |
| 12 | #### filter-flags <flags> #### |
10 | #### filter-flags <flags> #### |
| 13 | # Remove particular flags from C[XX]FLAGS |
11 | # Remove particular flags from C[XX]FLAGS |
| 14 | # Matches only complete flags |
12 | # Matches only complete flags |
| … | |
… | |
| 17 | # Add extra flags to your current C[XX]FLAGS |
15 | # Add extra flags to your current C[XX]FLAGS |
| 18 | # |
16 | # |
| 19 | #### replace-flags <orig.flag> <new.flag> ### |
17 | #### replace-flags <orig.flag> <new.flag> ### |
| 20 | # Replace a flag by another one |
18 | # Replace a flag by another one |
| 21 | # |
19 | # |
| 22 | #### replace-cpu-flags <new.cpu> <old.cpus> ### |
20 | #### replace-cpu-flags <old.cpus> <new.cpu> ### |
| 23 | # Replace march/mcpu flags that specify <old.cpus> |
21 | # Replace march/mcpu flags that specify <old.cpus> |
| 24 | # with flags that specify <new.cpu> |
22 | # with flags that specify <new.cpu> |
| 25 | # |
23 | # |
| 26 | #### is-flag <flag> #### |
24 | #### is-flag <flag> #### |
| 27 | # Returns "true" if flag is set in C[XX]FLAGS |
25 | # Returns "true" if flag is set in C[XX]FLAGS |
| … | |
… | |
| 51 | # Add extra flags to your current LDFLAGS |
49 | # Add extra flags to your current LDFLAGS |
| 52 | # |
50 | # |
| 53 | #### filter-ldflags <flags> #### |
51 | #### filter-ldflags <flags> #### |
| 54 | # Remove particular flags from LDFLAGS |
52 | # Remove particular flags from LDFLAGS |
| 55 | # Matches only complete flags |
53 | # Matches only complete flags |
| 56 | # |
|
|
| 57 | #### etexec-flags #### |
|
|
| 58 | # hooked function for hardened gcc that appends |
|
|
| 59 | # -fno-pic to {C,CXX,LD}FLAGS |
|
|
| 60 | # when a package is filtering -fpic, -fPIC, -fpie, -fPIE |
|
|
| 61 | # |
54 | # |
| 62 | #### fstack-flags #### |
55 | #### fstack-flags #### |
| 63 | # hooked function for hardened gcc that appends |
56 | # hooked function for hardened gcc that appends |
| 64 | # -fno-stack-protector to {C,CXX,LD}FLAGS |
57 | # -fno-stack-protector to {C,CXX,LD}FLAGS |
| 65 | # when a package is filtering -fstack-protector, -fstack-protector-all |
58 | # when a package is filtering -fstack-protector, -fstack-protector-all |
| 66 | # notice: modern automatic specs files will also suppress -fstack-protector-all |
59 | # notice: modern automatic specs files will also suppress -fstack-protector-all |
| 67 | # when only -fno-stack-protector is given |
60 | # when only -fno-stack-protector is given |
| 68 | # |
61 | # |
|
|
62 | #### has_pic #### |
|
|
63 | # Returns true if the compiler by default or with current CFLAGS |
|
|
64 | # builds position-independent code. |
|
|
65 | # |
|
|
66 | #### has_ssp_all #### |
|
|
67 | # Returns true if the compiler by default or with current CFLAGS |
|
|
68 | # generates stack smash protections for all functions |
|
|
69 | # |
|
|
70 | #### has_ssp #### |
|
|
71 | # Returns true if the compiler by default or with current CFLAGS |
|
|
72 | # generates stack smash protections for most vulnerable functions |
|
|
73 | # |
| 69 | |
74 | |
| 70 | # C[XX]FLAGS that we allow in strip-flags |
75 | # C[XX]FLAGS that we allow in strip-flags |
| 71 | setup-allowed-flags() { |
76 | setup-allowed-flags() { |
| 72 | if [ -z "${ALLOWED_FLAGS}" ] ; then |
77 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
| 73 | export ALLOWED_FLAGS="-O -O1 -O2 -mcpu -march -mtune -fstack-protector -fno-unit-at-a-time -pipe -g" |
78 | export ALLOWED_FLAGS="-pipe" |
| 74 | case "${ARCH}" in |
79 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
| 75 | mips) ALLOWED_FLAGS="${ALLOWED_FLAGS} -mips1 -mips2 -mips3 -mips4 -mabi" ;; |
80 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
| 76 | amd64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC -m64" ;; |
81 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-bounds-checking" |
| 77 | x86) ALLOWED_FLAGS="${ALLOWED_FLAGS} -m32" ;; |
82 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-pie -fno-unit-at-a-time" |
| 78 | alpha) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; |
83 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g0 -g1 -g2 -g3 -ggdb -ggdb0 -ggdb1 -ggdb2 -ggdb3" |
| 79 | ia64) ALLOWED_FLAGS="${ALLOWED_FLAGS} -fPIC" ;; |
|
|
| 80 | esac |
|
|
| 81 | fi |
84 | fi |
|
|
85 | # allow a bunch of flags that negate features / control ABI |
|
|
86 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all" |
|
|
87 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
|
|
88 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-3dnow \ |
|
|
89 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 \ |
|
|
90 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
|
|
91 | -mieee -mieee-with-inexact \ |
|
|
92 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
|
|
93 | -m32 -m64 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
|
|
94 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias" |
| 82 | |
95 | |
| 83 | # C[XX]FLAGS that we are think is ok, but needs testing |
96 | # C[XX]FLAGS that we are think is ok, but needs testing |
| 84 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
97 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
| 85 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
98 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks -fprefetch-loop-arrays" |
| 86 | return 0 |
99 | return 0 |
| 87 | } |
100 | } |
| 88 | |
101 | |
| 89 | filter-flags() { |
102 | filter-flags() { |
| 90 | local x f fset |
103 | local x f fset |
| 91 | declare -a new_CFLAGS new_CXXFLAGS |
104 | declare -a new_CFLAGS new_CXXFLAGS |
| 92 | |
105 | |
| 93 | for x in "$@" ; do |
106 | for x in "$@" ; do |
| 94 | case "${x}" in |
107 | case "${x}" in |
| 95 | -fPIC|-fpic|-fPIE|-fpie|-pie) etexec-flags;; |
108 | -fPIC|-fpic|-fPIE|-fpie|-pie) |
|
|
109 | append-flags `test_flag -fno-pie`;; |
| 96 | -fstack-protector|-fstack-protector-all) fstack-flags;; |
110 | -fstack-protector|-fstack-protector-all) |
|
|
111 | fstack-flags;; |
| 97 | esac |
112 | esac |
| 98 | done |
113 | done |
| 99 | |
114 | |
| 100 | for fset in CFLAGS CXXFLAGS; do |
115 | for fset in CFLAGS CXXFLAGS; do |
|
|
116 | # Looping over the flags instead of using a global |
|
|
117 | # substitution ensures that we're working with flag atoms. |
|
|
118 | # Otherwise globs like -O* have the potential to wipe out the |
|
|
119 | # list of flags. |
| 101 | for f in ${!fset}; do |
120 | for f in ${!fset}; do |
| 102 | for x in "$@"; do |
121 | for x in "$@"; do |
| 103 | # Note this should work with globs like -O* |
122 | # Note this should work with globs like -O* |
| 104 | [[ ${f} == ${x} ]] && continue 2 |
123 | [[ ${f} == ${x} ]] && continue 2 |
| 105 | done |
124 | done |
| … | |
… | |
| 118 | append-lfs-flags() { |
137 | append-lfs-flags() { |
| 119 | append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
138 | append-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
| 120 | } |
139 | } |
| 121 | |
140 | |
| 122 | append-flags() { |
141 | append-flags() { |
|
|
142 | [[ -z $* ]] && return 0 |
| 123 | export CFLAGS="${CFLAGS} $*" |
143 | export CFLAGS="${CFLAGS} $*" |
| 124 | export CXXFLAGS="${CXXFLAGS} $*" |
144 | export CXXFLAGS="${CXXFLAGS} $*" |
| 125 | [ -n "`is-flag -fno-stack-protector`" -o \ |
145 | [ -n "`is-flag -fno-stack-protector`" -o \ |
| 126 | -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
146 | -n "`is-flag -fno-stack-protector-all`" ] && fstack-flags |
| 127 | return 0 |
147 | return 0 |
| 128 | } |
148 | } |
| 129 | |
149 | |
| 130 | replace-flags() { |
150 | replace-flags() { |
| 131 | # we do this fancy spacing stuff so as to not filter |
151 | local f fset |
| 132 | # out part of a flag ... we want flag atoms ! :D |
152 | declare -a new_CFLAGS new_CXXFLAGS |
| 133 | CFLAGS=" ${CFLAGS} " |
153 | |
| 134 | CXXFLAGS=" ${CXXFLAGS} " |
154 | for fset in CFLAGS CXXFLAGS; do |
| 135 | CFLAGS="${CFLAGS// ${1} / ${2} }" |
155 | # Looping over the flags instead of using a global |
| 136 | CXXFLAGS="${CXXFLAGS// ${1} / ${2} }" |
156 | # substitution ensures that we're working with flag atoms. |
| 137 | CFLAGS="${CFLAGS:1:${#CFLAGS}-2}" |
157 | # Otherwise globs like -O* have the potential to wipe out the |
| 138 | CXXFLAGS="${CXXFLAGS:1:${#CXXFLAGS}-2}" |
158 | # list of flags. |
| 139 | export CFLAGS CXXFLAGS |
159 | for f in ${!fset}; do |
|
|
160 | # Note this should work with globs like -O* |
|
|
161 | [[ ${f} == ${1} ]] && f=${2} |
|
|
162 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
|
|
163 | done |
|
|
164 | eval export ${fset}=\${new_${fset}\[*]} |
|
|
165 | done |
|
|
166 | |
| 140 | return 0 |
167 | return 0 |
| 141 | } |
168 | } |
| 142 | |
169 | |
| 143 | replace-cpu-flags() { |
170 | replace-cpu-flags() { |
| 144 | local oldcpu newcpu="$1" ; shift |
171 | local newcpu="$#" ; newcpu="${!newcpu}" |
| 145 | for oldcpu in "$@" ; do |
172 | while [ $# -gt 1 ] ; do |
|
|
173 | # quote to make sure that no globbing is done (particularly on |
|
|
174 | # ${oldcpu} prior to calling replace-flags |
| 146 | replace-flags -march=${oldcpu} -march=${newcpu} |
175 | replace-flags "-march=${1}" "-march=${newcpu}" |
| 147 | replace-flags -mcpu=${oldcpu} -mcpu=${newcpu} |
176 | replace-flags "-mcpu=${1}" "-mcpu=${newcpu}" |
| 148 | replace-flags -mtune=${oldcpu} -mtune=${newcpu} |
177 | replace-flags "-mtune=${1}" "-mtune=${newcpu}" |
|
|
178 | shift |
| 149 | done |
179 | done |
| 150 | return 0 |
180 | return 0 |
| 151 | } |
181 | } |
| 152 | |
182 | |
| 153 | is-flag() { |
183 | is-flag() { |
| 154 | local x |
184 | local x |
| 155 | |
185 | |
| 156 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
186 | for x in ${CFLAGS} ${CXXFLAGS} ; do |
|
|
187 | # Note this should work with globs like -mcpu=ultrasparc* |
| 157 | if [ "${x}" == "$1" ] ; then |
188 | if [[ ${x} == ${1} ]]; then |
| 158 | echo true |
189 | echo true |
| 159 | return 0 |
190 | return 0 |
| 160 | fi |
191 | fi |
| 161 | done |
192 | done |
| 162 | return 1 |
193 | return 1 |
| … | |
… | |
| 195 | |
226 | |
| 196 | local NEW_CFLAGS="" |
227 | local NEW_CFLAGS="" |
| 197 | local NEW_CXXFLAGS="" |
228 | local NEW_CXXFLAGS="" |
| 198 | |
229 | |
| 199 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
230 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
| 200 | if has ~${ARCH} ${ACCEPT_KEYWORDS} ; then |
231 | if has ~$(tc-arch) ${ACCEPT_KEYWORDS} ; then |
| 201 | use debug && einfo "Enabling the use of some unstable flags" |
|
|
| 202 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
232 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
| 203 | fi |
233 | fi |
| 204 | |
234 | |
| 205 | set -f # disable pathname expansion |
235 | set -f # disable pathname expansion |
| 206 | |
236 | |
| 207 | for x in ${CFLAGS}; do |
237 | for x in ${CFLAGS}; do |
| 208 | for y in ${ALLOWED_FLAGS}; do |
238 | for y in ${ALLOWED_FLAGS}; do |
| 209 | flag=${x%%=*} |
239 | flag=${x%%=*} |
| 210 | if [ "${flag%%${y}}" = "" ]; then |
240 | if [ "${flag%%${y}}" = "" ] ; then |
| 211 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
241 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
| 212 | break |
242 | break |
| 213 | fi |
243 | fi |
| 214 | done |
244 | done |
| 215 | done |
245 | done |
| 216 | |
246 | |
| 217 | for x in ${CXXFLAGS}; do |
247 | for x in ${CXXFLAGS}; do |
| 218 | for y in ${ALLOWED_FLAGS}; do |
248 | for y in ${ALLOWED_FLAGS}; do |
| 219 | flag=${x%%=*} |
249 | flag=${x%%=*} |
| 220 | if [ "${flag%%${y}}" = "" ]; then |
250 | if [ "${flag%%${y}}" = "" ] ; then |
| 221 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
251 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
| 222 | break |
252 | break |
| 223 | fi |
253 | fi |
| 224 | done |
254 | done |
| 225 | done |
255 | done |
| … | |
… | |
| 238 | export CXXFLAGS="${NEW_CXXFLAGS}" |
268 | export CXXFLAGS="${NEW_CXXFLAGS}" |
| 239 | return 0 |
269 | return 0 |
| 240 | } |
270 | } |
| 241 | |
271 | |
| 242 | test_flag() { |
272 | test_flag() { |
| 243 | local cc=${CC:-gcc} ; cc=${cc%% *} |
273 | if $(tc-getCC) -S -xc "$@" -o "$(emktemp)" /dev/null &>/dev/null; then |
| 244 | if ${cc} -S -xc "$@" -o /dev/null /dev/null &>/dev/null; then |
|
|
| 245 | printf "%s\n" "$*" |
274 | printf "%s\n" "$*" |
| 246 | return 0 |
275 | return 0 |
| 247 | fi |
276 | fi |
| 248 | return 1 |
277 | return 1 |
| 249 | } |
278 | } |
| 250 | |
279 | |
| 251 | test_version_info() { |
280 | test_version_info() { |
| 252 | local cc=${CC:-gcc} ; cc=${cc%% *} |
|
|
| 253 | if [[ $(${cc} --version 2>&1) == *$1* ]]; then |
281 | if [[ $($(tc-getCC) --version 2>&1) == *$1* ]]; then |
| 254 | return 0 |
282 | return 0 |
| 255 | else |
283 | else |
| 256 | return 1 |
284 | return 1 |
| 257 | fi |
285 | fi |
| 258 | } |
286 | } |
| … | |
… | |
| 287 | done |
315 | done |
| 288 | return 1 |
316 | return 1 |
| 289 | } |
317 | } |
| 290 | |
318 | |
| 291 | has_hardened() { |
319 | has_hardened() { |
| 292 | test_version_info Hardened |
320 | test_version_info Hardened && return 0 |
|
|
321 | # the specs file wont exist unless gcc has GCC_SPECS support |
|
|
322 | [ -f "${GCC_SPECS}" -a "${GCC_SPECS}" != "${GCC_SPECS/hardened/}" ] && \ |
|
|
323 | return 0 |
| 293 | return $? |
324 | return 1 |
| 294 | } |
325 | } |
| 295 | |
326 | |
|
|
327 | # indicate whether PIC is set |
| 296 | has_pic() { |
328 | has_pic() { |
| 297 | [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0 |
329 | [ "${CFLAGS/-fPIC}" != "${CFLAGS}" ] && return 0 |
| 298 | [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0 |
330 | [ "${CFLAGS/-fpic}" != "${CFLAGS}" ] && return 0 |
| 299 | test_version_info pie && return 0 |
331 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__)" ] && return 0 |
| 300 | return 1 |
332 | return 1 |
| 301 | } |
333 | } |
| 302 | |
334 | |
|
|
335 | # indicate whether PIE is set |
| 303 | has_pie() { |
336 | has_pie() { |
| 304 | [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0 |
337 | [ "${CFLAGS/-fPIE}" != "${CFLAGS}" ] && return 0 |
| 305 | [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0 |
338 | [ "${CFLAGS/-fpie}" != "${CFLAGS}" ] && return 0 |
| 306 | test_version_info pie && return 0 |
339 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIE__)" ] && return 0 |
|
|
340 | # test PIC while waiting for specs to be updated to generate __PIE__ |
|
|
341 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __PIC__)" ] && return 0 |
| 307 | return 1 |
342 | return 1 |
| 308 | } |
343 | } |
| 309 | |
344 | |
|
|
345 | # indicate whether code for SSP is being generated for all functions |
|
|
346 | has_ssp_all() { |
|
|
347 | # note; this matches only -fstack-protector-all |
|
|
348 | [ "${CFLAGS/-fstack-protector-all}" != "${CFLAGS}" ] && return 0 |
|
|
349 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP_ALL__)" ] && return 0 |
|
|
350 | return 1 |
|
|
351 | } |
|
|
352 | |
|
|
353 | # indicate whether code for SSP is being generated |
| 310 | has_ssp() { |
354 | has_ssp() { |
|
|
355 | # note; this matches both -fstack-protector and -fstack-protector-all |
| 311 | [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0 |
356 | [ "${CFLAGS/-fstack-protector}" != "${CFLAGS}" ] && return 0 |
| 312 | test_version_info ssp && return 0 |
357 | [ "$(echo | $(tc-getCC) ${CFLAGS} -E -dM - | grep __SSP__)" ] && return 0 |
| 313 | return 1 |
358 | return 1 |
| 314 | } |
359 | } |
| 315 | |
360 | |
| 316 | has_m64() { |
361 | has_m64() { |
| 317 | # this doesnt test if the flag is accepted, it tests if the flag |
362 | # this doesnt test if the flag is accepted, it tests if the flag |
| 318 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
363 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 319 | # please dont replace this function with test_flag in some future |
364 | # please dont replace this function with test_flag in some future |
| 320 | # clean-up! |
365 | # clean-up! |
| 321 | temp=`mktemp` |
366 | local temp="$(emktemp)" |
| 322 | echo "int main() { return(0); }" > ${temp}.c |
367 | echo "int main() { return(0); }" > ${temp}.c |
| 323 | ${CC/ .*/} -m64 -o /dev/null ${temp}.c > /dev/null 2>&1 |
368 | MY_CC=$(tc-getCC) |
| 324 | ret=$? |
369 | ${MY_CC/ .*/} -m64 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1 |
|
|
370 | local ret=$? |
| 325 | rm -f ${temp}.c |
371 | rm -f ${temp}.c |
| 326 | [ "$ret" != "1" ] && return 0 |
372 | [ "$ret" != "1" ] && return 0 |
| 327 | return 1 |
373 | return 1 |
| 328 | } |
374 | } |
| 329 | |
375 | |
| 330 | has_m32() { |
376 | has_m32() { |
| 331 | # this doesnt test if the flag is accepted, it tests if the flag |
377 | # this doesnt test if the flag is accepted, it tests if the flag |
| 332 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
378 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 333 | # please dont replace this function with test_flag in some future |
379 | # please dont replace this function with test_flag in some future |
| 334 | # clean-up! |
380 | # clean-up! |
| 335 | temp=`mktemp` |
381 | |
|
|
382 | [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0 |
|
|
383 | |
|
|
384 | local temp="$(emktemp)" |
| 336 | echo "int main() { return(0); }" > ${temp}.c |
385 | echo "int main() { return(0); }" > ${temp}.c |
| 337 | ${CC/ .*/} -m32 -o /dev/null ${temp}.c > /dev/null 2>&1 |
386 | MY_CC=$(tc-getCC) |
| 338 | ret=$? |
387 | ${MY_CC/ .*/} -m32 -o "$(emktemp)" ${temp}.c > /dev/null 2>&1 |
|
|
388 | local ret=$? |
| 339 | rm -f ${temp}.c |
389 | rm -f ${temp}.c |
| 340 | [ "$ret" != "1" ] && return 0 |
390 | [ "$ret" != "1" ] && return 0 |
| 341 | return 1 |
391 | return 1 |
| 342 | } |
392 | } |
| 343 | |
393 | |
| 344 | replace-sparc64-flags() { |
394 | replace-sparc64-flags() { |
| 345 | local SPARC64_CPUS="ultrasparc v9" |
395 | local SPARC64_CPUS="ultrasparc v9" |
| 346 | |
396 | |
| 347 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
397 | if [ "${CFLAGS/mtune}" != "${CFLAGS}" ]; then |
| 348 | for x in ${SPARC64_CPUS}; do |
398 | for x in ${SPARC64_CPUS}; do |
| 349 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
399 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 350 | done |
400 | done |
| 351 | else |
401 | else |
| 352 | for x in ${SPARC64_CPUS}; do |
402 | for x in ${SPARC64_CPUS}; do |
| 353 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
403 | CFLAGS="${CFLAGS/-mcpu=${x}/-mcpu=v8 -mtune=${x}}" |
| 354 | done |
404 | done |
| 355 | fi |
405 | fi |
| 356 | |
406 | |
| 357 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
407 | if [ "${CXXFLAGS/mtune}" != "${CXXFLAGS}" ]; then |
| 358 | for x in ${SPARC64_CPUS}; do |
408 | for x in ${SPARC64_CPUS}; do |
| 359 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
409 | CXXFLAGS="${CXXFLAGS/-mcpu=${x}/-mcpu=v8}" |
| 360 | done |
410 | done |
| 361 | else |
411 | else |
| 362 | for x in ${SPARC64_CPUS}; do |
412 | for x in ${SPARC64_CPUS}; do |
| … | |
… | |
| 377 | |
427 | |
| 378 | # we do this fancy spacing stuff so as to not filter |
428 | # we do this fancy spacing stuff so as to not filter |
| 379 | # out part of a flag ... we want flag atoms ! :D |
429 | # out part of a flag ... we want flag atoms ! :D |
| 380 | LDFLAGS=" ${LDFLAGS} " |
430 | LDFLAGS=" ${LDFLAGS} " |
| 381 | for x in "$@" ; do |
431 | for x in "$@" ; do |
| 382 | LDFLAGS="${LDFLAGS// ${x} / }" |
432 | LDFLAGS=${LDFLAGS// ${x} / } |
| 383 | done |
433 | done |
|
|
434 | [[ -z ${LDFLAGS// } ]] \ |
|
|
435 | && LDFLAGS="" \ |
| 384 | LDFLAGS="${LDFLAGS:1:${#LDFLAGS}-2}" |
436 | || LDFLAGS=${LDFLAGS:1:${#LDFLAGS}-2} |
| 385 | export LDFLAGS |
437 | export LDFLAGS |
| 386 | return 0 |
|
|
| 387 | } |
|
|
| 388 | |
|
|
| 389 | etexec-flags() { |
|
|
| 390 | # if you're not using a hardened compiler you wont need this |
|
|
| 391 | # PIC/no-pic kludge in the first place. |
|
|
| 392 | has_hardened || return 0 |
|
|
| 393 | |
|
|
| 394 | if has_pie || has_pic; then |
|
|
| 395 | [ -z "`is-flag -fno-pic`" ] && |
|
|
| 396 | export CFLAGS="${CFLAGS} `test_flag -fno-pic`" |
|
|
| 397 | [ -z "`is-flag -nopie`" ] && |
|
|
| 398 | export CFLAGS="${CFLAGS} `test_flag -nopie`" |
|
|
| 399 | fi |
|
|
| 400 | return 0 |
438 | return 0 |
| 401 | } |
439 | } |
| 402 | |
440 | |
| 403 | fstack-flags() { |
441 | fstack-flags() { |
| 404 | if has_ssp; then |
442 | if has_ssp; then |
| 405 | [ -z "`is-flag -fno-stack-protector`" ] && |
443 | [ -z "`is-flag -fno-stack-protector`" ] && |
| 406 | export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
444 | export CFLAGS="${CFLAGS} `test_flag -fno-stack-protector`" |
| 407 | fi |
445 | fi |
| 408 | return 0 |
446 | return 0 |
| 409 | } |
447 | } |
|
|
448 | |
|
|
449 | # This is thanks to great work from Paul de Vrieze <gentoo-user@devrieze.net>, |
|
|
450 | # bug #9016. Also thanks to Jukka Salmi <salmi@gmx.net> (bug #13907) for more |
|
|
451 | # fixes. |
|
|
452 | # |
|
|
453 | # Export CFLAGS and CXXFLAGS that are compadible with gcc-2.95.3 |
|
|
454 | gcc2-flags() { |
|
|
455 | if [[ $(tc-arch) == "x86" || $(tc-arch) == "amd64" ]] ; then |
|
|
456 | CFLAGS=${CFLAGS//-mtune=/-mcpu=} |
|
|
457 | CXXFLAGS=${CXXFLAGS//-mtune=/-mcpu=} |
|
|
458 | fi |
|
|
459 | |
|
|
460 | replace-cpu-flags k6-{2,3} k6 |
|
|
461 | replace-cpu-flags athlon{,-{tbird,4,xp,mp}} i686 |
|
|
462 | |
|
|
463 | replace-cpu-flags pentium-mmx i586 |
|
|
464 | replace-cpu-flags pentium{2,3,4} i686 |
|
|
465 | |
|
|
466 | replace-cpu-flags ev6{7,8} ev6 |
|
|
467 | |
|
|
468 | export CFLAGS CXXFLAGS |
|
|
469 | } |
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