| 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 1.159 2011/12/07 06:42:40 vapier 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 |
| 9 | # @DESCRIPTION: |
9 | # @DESCRIPTION: |
| 10 | # This eclass contains a suite of functions to help developers sanely |
10 | # This eclass contains a suite of functions to help developers sanely |
| 11 | # and safely manage toolchain flags in their builds. |
11 | # and safely manage toolchain flags in their builds. |
| 12 | |
12 | |
|
|
13 | if [[ ${___ECLASS_ONCE_FLAG_O_MATIC} != "recur -_+^+_- spank" ]] ; then |
|
|
14 | ___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank" |
|
|
15 | |
| 13 | inherit eutils toolchain-funcs multilib |
16 | inherit eutils toolchain-funcs multilib |
| 14 | |
17 | |
| 15 | ################ DEPRECATED functions ################ |
18 | # Return all the flag variables that our high level funcs operate on. |
| 16 | # The following are still present to avoid breaking existing |
19 | all-flag-vars() { |
| 17 | # code more than necessary; however they are deprecated. Please |
20 | echo {C,CPP,CXX,CCAS,F,FC,LD}FLAGS |
| 18 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
21 | } |
| 19 | # need to know which hardened techs are active in the compiler. |
|
|
| 20 | # See bug #100974 |
|
|
| 21 | # |
|
|
| 22 | # has_hardened |
|
|
| 23 | # has_pie |
|
|
| 24 | # has_pic |
|
|
| 25 | # has_ssp_all |
|
|
| 26 | # has_ssp |
|
|
| 27 | |
22 | |
| 28 | |
|
|
| 29 | # {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 |
| 30 | # Note: shell globs and character lists are allowed |
24 | # Note: shell globs and character lists are allowed |
| 31 | setup-allowed-flags() { |
25 | setup-allowed-flags() { |
| 32 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
|
|
| 33 | export ALLOWED_FLAGS="-pipe" |
26 | ALLOWED_FLAGS="-pipe" |
| 34 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
27 | ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune" |
| 35 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
28 | ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all" |
| 36 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-strict-overflow" |
29 | ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow" |
| 37 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" |
30 | ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time" |
| 38 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
31 | ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
| 39 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident -fpermissive" |
32 | ALLOWED_FLAGS+=" -fno-ident -fpermissive" |
| 40 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -W* -w" |
33 | ALLOWED_FLAGS+=" -W* -w" |
| 41 | fi |
34 | |
| 42 | # allow a bunch of flags that negate features / control ABI |
35 | # allow a bunch of flags that negate features / control ABI |
| 43 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all \ |
36 | ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \ |
| 44 | -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow -fno-omit-frame-pointer" |
37 | -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \ |
|
|
38 | -fno-omit-frame-pointer" |
| 45 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
39 | ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \ |
| 46 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 \ |
40 | -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 \ |
| 47 | -mno-sse4.2 -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow \ |
41 | -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt \ |
| 48 | -mno-popcnt -mno-abm \ |
|
|
| 49 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
42 | -mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
| 50 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
43 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
| 51 | -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
44 | -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
| 52 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
45 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \ |
| 53 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
46 | -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \ |
| 54 | -m32 -m64 -mx32 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
47 | -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \ |
| 55 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias \ |
48 | -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -mfloat-abi=* \ |
| 56 | -msecure-plt -m*-toc -D* -U*" |
49 | -D* -U*" |
| 57 | |
50 | |
| 58 | # 4.5 |
51 | # 4.5 |
| 59 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
52 | ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
| 60 | # 4.6 |
53 | # 4.6 |
| 61 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fsgsbase -mno-rdrnd -mno-f16c \ |
54 | ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" |
| 62 | -mno-bmi -mno-tbm" |
55 | # 4.7 |
|
|
56 | ALLOWED_FLAGS+=" -mno-avx2 -mno-bmi2 -mno-fma -mno-lzcnt" |
| 63 | |
57 | |
| 64 | # {C,CXX,F,FC}FLAGS that we are think is ok, but needs testing |
58 | # CPPFLAGS and LDFLAGS |
| 65 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
59 | ALLOWED_FLAGS+=" -I* -L* -R* -Wl,*" |
| 66 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks" |
60 | |
|
|
61 | export ALLOWED_FLAGS |
| 67 | return 0 |
62 | return 0 |
| 68 | } |
63 | } |
| 69 | |
64 | |
| 70 | # inverted filters for hardened compiler. This is trying to unpick |
65 | # inverted filters for hardened compiler. This is trying to unpick |
| 71 | # the hardened compiler defaults. |
66 | # the hardened compiler defaults. |
| … | |
… | |
| 94 | |
89 | |
| 95 | # Remove occurrences of strings from variable given in $1 |
90 | # Remove occurrences of strings from variable given in $1 |
| 96 | # Strings removed are matched as globs, so for example |
91 | # Strings removed are matched as globs, so for example |
| 97 | # '-O*' would remove -O1, -O2 etc. |
92 | # '-O*' would remove -O1, -O2 etc. |
| 98 | _filter-var() { |
93 | _filter-var() { |
| 99 | local f x VAR VAL |
94 | local f x var=$1 new=() |
| 100 | declare -a new |
|
|
| 101 | |
|
|
| 102 | VAR=$1 |
|
|
| 103 | shift |
95 | shift |
| 104 | eval VAL=\${${VAR}} |
96 | |
| 105 | for f in ${VAL}; do |
97 | for f in ${!var} ; do |
| 106 | for x in "$@"; do |
98 | for x in "$@" ; do |
| 107 | # Note this should work with globs like -O* |
99 | # Note this should work with globs like -O* |
| 108 | [[ ${f} == ${x} ]] && continue 2 |
100 | [[ ${f} == ${x} ]] && continue 2 |
| 109 | done |
101 | done |
| 110 | eval new\[\${\#new\[@]}]=\${f} |
102 | new+=( "${f}" ) |
| 111 | done |
103 | done |
| 112 | eval export ${VAR}=\${new\[*]} |
104 | eval export ${var}=\""${new[*]}"\" |
| 113 | } |
105 | } |
| 114 | |
106 | |
| 115 | # @FUNCTION: filter-flags |
107 | # @FUNCTION: filter-flags |
| 116 | # @USAGE: <flags> |
108 | # @USAGE: <flags> |
| 117 | # @DESCRIPTION: |
109 | # @DESCRIPTION: |
| 118 | # 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. |
| 119 | filter-flags() { |
111 | filter-flags() { |
| 120 | _filter-hardened "$@" |
112 | _filter-hardened "$@" |
|
|
113 | local v |
|
|
114 | for v in $(all-flag-vars) ; do |
| 121 | _filter-var CFLAGS "$@" |
115 | _filter-var ${v} "$@" |
| 122 | _filter-var CPPFLAGS "$@" |
116 | done |
| 123 | _filter-var CXXFLAGS "$@" |
|
|
| 124 | _filter-var FFLAGS "$@" |
|
|
| 125 | _filter-var FCFLAGS "$@" |
|
|
| 126 | return 0 |
117 | return 0 |
| 127 | } |
118 | } |
| 128 | |
119 | |
| 129 | # @FUNCTION: filter-lfs-flags |
120 | # @FUNCTION: filter-lfs-flags |
| 130 | # @DESCRIPTION: |
121 | # @DESCRIPTION: |
| … | |
… | |
| 136 | # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
127 | # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
| 137 | # _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) |
| 138 | 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 |
| 139 | } |
130 | } |
| 140 | |
131 | |
|
|
132 | # @FUNCTION: filter-ldflags |
|
|
133 | # @USAGE: <flags> |
|
|
134 | # @DESCRIPTION: |
|
|
135 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
|
|
136 | filter-ldflags() { |
|
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137 | _filter-var LDFLAGS "$@" |
|
|
138 | return 0 |
|
|
139 | } |
|
|
140 | |
| 141 | # @FUNCTION: append-cppflags |
141 | # @FUNCTION: append-cppflags |
| 142 | # @USAGE: <flags> |
142 | # @USAGE: <flags> |
| 143 | # @DESCRIPTION: |
143 | # @DESCRIPTION: |
| 144 | # Add extra <flags> to the current CPPFLAGS. |
144 | # Add extra <flags> to the current CPPFLAGS. |
| 145 | append-cppflags() { |
145 | append-cppflags() { |
| … | |
… | |
| 186 | [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
186 | [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
| 187 | # see comments in filter-lfs-flags func for meaning of these |
187 | # see comments in filter-lfs-flags func for meaning of these |
| 188 | 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 |
| 189 | } |
189 | } |
| 190 | |
190 | |
|
|
191 | # @FUNCTION: append-ldflags |
|
|
192 | # @USAGE: <flags> |
|
|
193 | # @DESCRIPTION: |
|
|
194 | # Add extra <flags> to the current LDFLAGS. |
|
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195 | append-ldflags() { |
|
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196 | [[ $# -eq 0 ]] && return 0 |
|
|
197 | local flag |
|
|
198 | for flag in "$@"; do |
|
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199 | [[ ${flag} == -l* ]] && \ |
|
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200 | eqawarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
|
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201 | done |
|
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202 | |
|
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203 | export LDFLAGS="${LDFLAGS} $*" |
|
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204 | return 0 |
|
|
205 | } |
|
|
206 | |
| 191 | # @FUNCTION: append-flags |
207 | # @FUNCTION: append-flags |
| 192 | # @USAGE: <flags> |
208 | # @USAGE: <flags> |
| 193 | # @DESCRIPTION: |
209 | # @DESCRIPTION: |
| 194 | # Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
210 | # Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
| 195 | append-flags() { |
211 | append-flags() { |
| 196 | [[ $# -eq 0 ]] && return 0 |
212 | [[ $# -eq 0 ]] && return 0 |
|
|
213 | case " $* " in |
|
|
214 | *' '-[DIU]*) eqawarn 'please use append-cppflags for preprocessor flags' ;; |
|
|
215 | *' '-L*|\ |
|
|
216 | *' '-Wl,*) eqawarn 'please use append-ldflags for linker flags' ;; |
|
|
217 | esac |
| 197 | append-cflags "$@" |
218 | append-cflags "$@" |
| 198 | append-cxxflags "$@" |
219 | append-cxxflags "$@" |
| 199 | append-fflags "$@" |
220 | append-fflags "$@" |
| 200 | return 0 |
221 | return 0 |
| 201 | } |
222 | } |
| … | |
… | |
| 203 | # @FUNCTION: replace-flags |
224 | # @FUNCTION: replace-flags |
| 204 | # @USAGE: <old> <new> |
225 | # @USAGE: <old> <new> |
| 205 | # @DESCRIPTION: |
226 | # @DESCRIPTION: |
| 206 | # Replace the <old> flag with <new>. Accepts shell globs for <old>. |
227 | # Replace the <old> flag with <new>. Accepts shell globs for <old>. |
| 207 | replace-flags() { |
228 | replace-flags() { |
| 208 | [[ $# != 2 ]] \ |
|
|
| 209 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
229 | [[ $# != 2 ]] && die "Usage: replace-flags <old flag> <new flag>" |
| 210 | && die "replace-flags takes 2 arguments, not $#" |
|
|
| 211 | |
230 | |
| 212 | local f fset |
231 | local f var new |
| 213 | declare -a new_CFLAGS new_CXXFLAGS new_FFLAGS new_FCFLAGS |
232 | for var in $(all-flag-vars) ; do |
| 214 | |
|
|
| 215 | for fset in CFLAGS CXXFLAGS FFLAGS FCFLAGS; do |
|
|
| 216 | # Looping over the flags instead of using a global |
233 | # Looping over the flags instead of using a global |
| 217 | # substitution ensures that we're working with flag atoms. |
234 | # substitution ensures that we're working with flag atoms. |
| 218 | # Otherwise globs like -O* have the potential to wipe out the |
235 | # Otherwise globs like -O* have the potential to wipe out the |
| 219 | # list of flags. |
236 | # list of flags. |
|
|
237 | new=() |
| 220 | for f in ${!fset}; do |
238 | for f in ${!var} ; do |
| 221 | # Note this should work with globs like -O* |
239 | # Note this should work with globs like -O* |
| 222 | [[ ${f} == ${1} ]] && f=${2} |
240 | [[ ${f} == ${1} ]] && f=${2} |
| 223 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
241 | new+=( "${f}" ) |
| 224 | done |
242 | done |
| 225 | eval export ${fset}=\${new_${fset}\[*]} |
243 | eval export ${var}=\""${new[*]}"\" |
| 226 | done |
244 | done |
| 227 | |
245 | |
| 228 | return 0 |
246 | return 0 |
| 229 | } |
247 | } |
| 230 | |
248 | |
| … | |
… | |
| 245 | done |
263 | done |
| 246 | return 0 |
264 | return 0 |
| 247 | } |
265 | } |
| 248 | |
266 | |
| 249 | _is_flagq() { |
267 | _is_flagq() { |
| 250 | local x |
268 | local x var |
|
|
269 | eval var=\""\${$1[*]}"\" |
| 251 | for x in ${!1} ; do |
270 | for x in ${var} ; do |
| 252 | [[ ${x} == $2 ]] && return 0 |
271 | [[ ${x} == $2 ]] && return 0 |
| 253 | done |
272 | done |
| 254 | return 1 |
273 | return 1 |
| 255 | } |
274 | } |
| 256 | |
275 | |
| … | |
… | |
| 258 | # @USAGE: <flag> |
277 | # @USAGE: <flag> |
| 259 | # @DESCRIPTION: |
278 | # @DESCRIPTION: |
| 260 | # 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. |
| 261 | is-flagq() { |
280 | is-flagq() { |
| 262 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
281 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
| 263 | _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} "$1" && return 0 |
|
|
286 | done |
|
|
287 | return 1 |
| 264 | } |
288 | } |
| 265 | |
289 | |
| 266 | # @FUNCTION: is-flag |
290 | # @FUNCTION: is-flag |
| 267 | # @USAGE: <flag> |
291 | # @USAGE: <flag> |
| 268 | # @DESCRIPTION: |
292 | # @DESCRIPTION: |
| … | |
… | |
| 322 | return 0 |
346 | return 0 |
| 323 | } |
347 | } |
| 324 | |
348 | |
| 325 | # @FUNCTION: strip-flags |
349 | # @FUNCTION: strip-flags |
| 326 | # @DESCRIPTION: |
350 | # @DESCRIPTION: |
| 327 | # Strip C[XX]FLAGS of everything except known good/safe flags. |
351 | # Strip *FLAGS of everything except known good/safe flags. This runs over all |
|
|
352 | # flags returned by all_flag_vars(). |
| 328 | strip-flags() { |
353 | strip-flags() { |
| 329 | local x y flag NEW_CFLAGS NEW_CXXFLAGS NEW_FFLAGS NEW_FCFLAGS |
354 | local x y var |
| 330 | |
355 | |
| 331 | setup-allowed-flags |
356 | setup-allowed-flags |
| 332 | |
357 | |
| 333 | local NEW_CFLAGS="" |
|
|
| 334 | local NEW_CXXFLAGS="" |
|
|
| 335 | local NEW_FFLAGS="" |
|
|
| 336 | local NEW_FCFLAGS="" |
|
|
| 337 | |
|
|
| 338 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
|
|
| 339 | if has "~$(tc-arch)" ${ACCEPT_KEYWORDS} ; then |
|
|
| 340 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
|
|
| 341 | fi |
|
|
| 342 | |
|
|
| 343 | set -f # disable pathname expansion |
358 | set -f # disable pathname expansion |
| 344 | |
359 | |
| 345 | 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%%=*} |
| 346 | for y in ${ALLOWED_FLAGS}; do |
365 | for y in ${ALLOWED_FLAGS} ; do |
| 347 | flag=${x%%=*} |
|
|
| 348 | if [ "${flag%%${y}}" = "" ] ; then |
366 | if [[ -z ${flag%%${y}} ]] ; then |
| 349 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
367 | new+=( "${x}" ) |
| 350 | break |
368 | break |
| 351 | fi |
369 | fi |
| 352 | done |
370 | done |
| 353 | done |
371 | done |
| 354 | |
372 | |
| 355 | for x in ${CXXFLAGS}; do |
|
|
| 356 | for y in ${ALLOWED_FLAGS}; do |
|
|
| 357 | flag=${x%%=*} |
|
|
| 358 | if [ "${flag%%${y}}" = "" ] ; then |
|
|
| 359 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
|
|
| 360 | break |
|
|
| 361 | fi |
|
|
| 362 | done |
|
|
| 363 | done |
|
|
| 364 | |
|
|
| 365 | for x in ${FFLAGS}; do |
|
|
| 366 | for y in ${ALLOWED_FLAGS}; do |
|
|
| 367 | flag=${x%%=*} |
|
|
| 368 | if [ "${flag%%${y}}" = "" ] ; then |
|
|
| 369 | NEW_FFLAGS="${NEW_FFLAGS} ${x}" |
|
|
| 370 | break |
|
|
| 371 | fi |
|
|
| 372 | done |
|
|
| 373 | done |
|
|
| 374 | |
|
|
| 375 | for x in ${FCFLAGS}; do |
|
|
| 376 | for y in ${ALLOWED_FLAGS}; do |
|
|
| 377 | flag=${x%%=*} |
|
|
| 378 | if [ "${flag%%${y}}" = "" ] ; then |
|
|
| 379 | NEW_FCFLAGS="${NEW_FCFLAGS} ${x}" |
|
|
| 380 | break |
|
|
| 381 | fi |
|
|
| 382 | done |
|
|
| 383 | done |
|
|
| 384 | |
|
|
| 385 | # In case we filtered out all optimization flags fallback to -O2 |
373 | # In case we filtered out all optimization flags fallback to -O2 |
| 386 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
374 | if _is_flagq ${var} "-O*" && ! _is_flagq new "-O*" ; then |
| 387 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
375 | new+=( -O2 ) |
| 388 | fi |
376 | fi |
| 389 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
377 | |
| 390 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
378 | eval export ${var}=\""${new[*]}"\" |
| 391 | fi |
379 | done |
| 392 | if [ "${FFLAGS/-O}" != "${FFLAGS}" -a "${NEW_FFLAGS/-O}" = "${NEW_FFLAGS}" ]; then |
|
|
| 393 | NEW_FFLAGS="${NEW_FFLAGS} -O2" |
|
|
| 394 | fi |
|
|
| 395 | if [ "${FCFLAGS/-O}" != "${FCFLAGS}" -a "${NEW_FCFLAGS/-O}" = "${NEW_FCFLAGS}" ]; then |
|
|
| 396 | NEW_FCFLAGS="${NEW_FCFLAGS} -O2" |
|
|
| 397 | fi |
|
|
| 398 | |
380 | |
| 399 | set +f # re-enable pathname expansion |
381 | set +f # re-enable pathname expansion |
| 400 | |
382 | |
| 401 | export CFLAGS="${NEW_CFLAGS}" |
|
|
| 402 | export CXXFLAGS="${NEW_CXXFLAGS}" |
|
|
| 403 | export FFLAGS="${NEW_FFLAGS}" |
|
|
| 404 | export FCFLAGS="${NEW_FCFLAGS}" |
|
|
| 405 | return 0 |
383 | return 0 |
| 406 | } |
384 | } |
| 407 | |
385 | |
| 408 | test-flag-PROG() { |
386 | test-flag-PROG() { |
| 409 | local comp=$1 |
387 | local comp=$1 |
| 410 | local flags="$2" |
388 | local lang=$2 |
|
|
389 | local flag=$3 |
| 411 | |
390 | |
| 412 | [[ -z ${comp} || -z ${flags} ]] && return 1 |
391 | [[ -z ${comp} || -z ${flag} ]] && return 1 |
| 413 | |
392 | |
| 414 | # use -c so we can test the assembler as well |
393 | # use -c so we can test the assembler as well |
| 415 | local PROG=$(tc-get${comp}) |
394 | local PROG=$(tc-get${comp}) |
| 416 | ${PROG} ${flags} -c -o /dev/null -xc /dev/null \ |
395 | ${PROG} "${flag}" -c -o /dev/null -x${lang} - < /dev/null \ |
| 417 | > /dev/null 2>&1 |
396 | > /dev/null 2>&1 |
| 418 | } |
397 | } |
| 419 | |
398 | |
| 420 | # @FUNCTION: test-flag-CC |
399 | # @FUNCTION: test-flag-CC |
| 421 | # @USAGE: <flag> |
400 | # @USAGE: <flag> |
| 422 | # @DESCRIPTION: |
401 | # @DESCRIPTION: |
| 423 | # 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. |
| 424 | test-flag-CC() { test-flag-PROG "CC" "$1"; } |
403 | test-flag-CC() { test-flag-PROG "CC" c "$1"; } |
| 425 | |
404 | |
| 426 | # @FUNCTION: test-flag-CXX |
405 | # @FUNCTION: test-flag-CXX |
| 427 | # @USAGE: <flag> |
406 | # @USAGE: <flag> |
| 428 | # @DESCRIPTION: |
407 | # @DESCRIPTION: |
| 429 | # 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. |
| 430 | test-flag-CXX() { test-flag-PROG "CXX" "$1"; } |
409 | test-flag-CXX() { test-flag-PROG "CXX" c++ "$1"; } |
| 431 | |
410 | |
| 432 | # @FUNCTION: test-flag-F77 |
411 | # @FUNCTION: test-flag-F77 |
| 433 | # @USAGE: <flag> |
412 | # @USAGE: <flag> |
| 434 | # @DESCRIPTION: |
413 | # @DESCRIPTION: |
| 435 | # 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. |
| 436 | test-flag-F77() { test-flag-PROG "F77" "$1"; } |
415 | test-flag-F77() { test-flag-PROG "F77" f77 "$1"; } |
| 437 | |
416 | |
| 438 | # @FUNCTION: test-flag-FC |
417 | # @FUNCTION: test-flag-FC |
| 439 | # @USAGE: <flag> |
418 | # @USAGE: <flag> |
| 440 | # @DESCRIPTION: |
419 | # @DESCRIPTION: |
| 441 | # 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. |
| 442 | test-flag-FC() { test-flag-PROG "FC" "$1"; } |
421 | test-flag-FC() { test-flag-PROG "FC" f95 "$1"; } |
| 443 | |
422 | |
| 444 | test-flags-PROG() { |
423 | test-flags-PROG() { |
| 445 | local comp=$1 |
424 | local comp=$1 |
| 446 | local flags |
425 | local flags=() |
| 447 | local x |
426 | local x |
| 448 | |
427 | |
| 449 | shift |
428 | shift |
| 450 | |
429 | |
| 451 | [[ -z ${comp} ]] && return 1 |
430 | [[ -z ${comp} ]] && return 1 |
| 452 | |
431 | |
| 453 | for x in "$@" ; do |
432 | for x ; do |
| 454 | test-flag-${comp} "${x}" && flags="${flags}${flags:+ }${x}" |
433 | test-flag-${comp} "${x}" && flags+=( "${x}" ) |
| 455 | done |
434 | done |
| 456 | |
435 | |
| 457 | echo "${flags}" |
436 | echo "${flags[*]}" |
| 458 | |
437 | |
| 459 | # Just bail if we dont have any flags |
438 | # Just bail if we dont have any flags |
| 460 | [[ -n ${flags} ]] |
439 | [[ ${#flags[@]} -gt 0 ]] |
| 461 | } |
440 | } |
| 462 | |
441 | |
| 463 | # @FUNCTION: test-flags-CC |
442 | # @FUNCTION: test-flags-CC |
| 464 | # @USAGE: <flags> |
443 | # @USAGE: <flags> |
| 465 | # @DESCRIPTION: |
444 | # @DESCRIPTION: |
| … | |
… | |
| 517 | # @FUNCTION: get-flag |
496 | # @FUNCTION: get-flag |
| 518 | # @USAGE: <flag> |
497 | # @USAGE: <flag> |
| 519 | # @DESCRIPTION: |
498 | # @DESCRIPTION: |
| 520 | # 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. |
| 521 | get-flag() { |
500 | get-flag() { |
| 522 | local f findflag="$1" |
501 | local f var findflag="$1" |
| 523 | |
502 | |
| 524 | # this code looks a little flaky but seems to work for |
503 | # this code looks a little flaky but seems to work for |
| 525 | # everything we want ... |
504 | # everything we want ... |
| 526 | # for example, if CFLAGS="-march=i686": |
505 | # for example, if CFLAGS="-march=i686": |
| 527 | # `get-flag -march` == "-march=i686" |
506 | # `get-flag -march` == "-march=i686" |
| 528 | # `get-flag march` == "i686" |
507 | # `get-flag march` == "i686" |
| 529 | for f in ${CFLAGS} ${CXXFLAGS} ${FFLAGS} ${FCFLAGS} ; do |
508 | for var in $(all-flag-vars) ; do |
|
|
509 | for f in ${!var} ; do |
| 530 | if [ "${f/${findflag}}" != "${f}" ] ; then |
510 | if [ "${f/${findflag}}" != "${f}" ] ; then |
| 531 | printf "%s\n" "${f/-${findflag}=}" |
511 | printf "%s\n" "${f/-${findflag}=}" |
| 532 | return 0 |
512 | return 0 |
| 533 | fi |
513 | fi |
|
|
514 | done |
| 534 | done |
515 | done |
| 535 | return 1 |
516 | return 1 |
| 536 | } |
517 | } |
| 537 | |
|
|
| 538 | # DEAD FUNCS. Remove by Dec 2011. |
|
|
| 539 | test_flag() { die "$0: deprecated, please use test-flags()!" ; } |
|
|
| 540 | has_hardened() { die "$0: deprecated, please use gcc-specs-{relro,now}()!" ; } |
|
|
| 541 | has_pic() { die "$0: deprecated, please use gcc-specs-pie()!" ; } |
|
|
| 542 | has_pie() { die "$0: deprecated, please use gcc-specs-pie()!" ; } |
|
|
| 543 | has_ssp_all() { die "$0: deprecated, please use gcc-specs-ssp()!" ; } |
|
|
| 544 | has_ssp() { die "$0: deprecated, please use gcc-specs-ssp()!" ; } |
|
|
| 545 | |
518 | |
| 546 | # @FUNCTION: has_m64 |
519 | # @FUNCTION: has_m64 |
| 547 | # @DESCRIPTION: |
520 | # @DESCRIPTION: |
| 548 | # This doesn't test if the flag is accepted, it tests if the flag actually |
521 | # This doesn't test if the flag is accepted, it tests if the flag actually |
| 549 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
522 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
| 550 | # return code is 0, else the return code is 1. |
523 | # return code is 0, else the return code is 1. |
| 551 | has_m64() { |
524 | has_m64() { |
|
|
525 | eqawarn "${FUNCNAME}: don't use this anymore" |
|
|
526 | |
| 552 | # 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 |
| 553 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
528 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
| 554 | # please dont replace this function with test_flag in some future |
529 | # please dont replace this function with test_flag in some future |
| 555 | # clean-up! |
530 | # clean-up! |
| 556 | |
531 | |
| … | |
… | |
| 562 | rm -f "${temp}".c |
537 | rm -f "${temp}".c |
| 563 | [[ ${ret} != 1 ]] && return 0 |
538 | [[ ${ret} != 1 ]] && return 0 |
| 564 | return 1 |
539 | return 1 |
| 565 | } |
540 | } |
| 566 | |
541 | |
| 567 | # @FUNCTION: has_m32 |
|
|
| 568 | # @DESCRIPTION: |
|
|
| 569 | # This doesn't test if the flag is accepted, it tests if the flag actually |
|
|
| 570 | # WORKS. Non-mulilib gcc will take both -m32 and -64. If the flag works return |
|
|
| 571 | # code is 0, else return code is 1. |
|
|
| 572 | has_m32() { |
542 | has_m32() { |
| 573 | # this doesnt test if the flag is accepted, it tests if the flag |
543 | die "${FUNCNAME}: don't use this anymore" |
| 574 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
|
|
| 575 | # please dont replace this function with test_flag in some future |
|
|
| 576 | # clean-up! |
|
|
| 577 | |
|
|
| 578 | [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0 |
|
|
| 579 | |
|
|
| 580 | local temp=$(emktemp) |
|
|
| 581 | echo "int main() { return(0); }" > "${temp}".c |
|
|
| 582 | MY_CC=$(tc-getCC) |
|
|
| 583 | ${MY_CC/ .*/} -m32 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
|
|
| 584 | local ret=$? |
|
|
| 585 | rm -f "${temp}".c |
|
|
| 586 | [[ ${ret} != 1 ]] && return 0 |
|
|
| 587 | return 1 |
|
|
| 588 | } |
544 | } |
| 589 | |
545 | |
| 590 | # @FUNCTION: replace-sparc64-flags |
546 | # @FUNCTION: replace-sparc64-flags |
| 591 | # @DESCRIPTION: |
547 | # @DESCRIPTION: |
| 592 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
548 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
| … | |
… | |
| 626 | for flag in "$@"; do |
582 | for flag in "$@"; do |
| 627 | [[ ${flag} == -l* ]] && flag=${flag#-l} |
583 | [[ ${flag} == -l* ]] && flag=${flag#-l} |
| 628 | export LIBS="${LIBS} -l${flag}" |
584 | export LIBS="${LIBS} -l${flag}" |
| 629 | done |
585 | done |
| 630 | |
586 | |
| 631 | return 0 |
|
|
| 632 | } |
|
|
| 633 | |
|
|
| 634 | # @FUNCTION: append-ldflags |
|
|
| 635 | # @USAGE: <flags> |
|
|
| 636 | # @DESCRIPTION: |
|
|
| 637 | # Add extra <flags> to the current LDFLAGS. |
|
|
| 638 | append-ldflags() { |
|
|
| 639 | [[ $# -eq 0 ]] && return 0 |
|
|
| 640 | local flag |
|
|
| 641 | for flag in "$@"; do |
|
|
| 642 | [[ ${flag} == -l* ]] && \ |
|
|
| 643 | ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
|
|
| 644 | done |
|
|
| 645 | |
|
|
| 646 | export LDFLAGS="${LDFLAGS} $*" |
|
|
| 647 | return 0 |
|
|
| 648 | } |
|
|
| 649 | |
|
|
| 650 | # @FUNCTION: filter-ldflags |
|
|
| 651 | # @USAGE: <flags> |
|
|
| 652 | # @DESCRIPTION: |
|
|
| 653 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
|
|
| 654 | filter-ldflags() { |
|
|
| 655 | _filter-var LDFLAGS "$@" |
|
|
| 656 | return 0 |
587 | return 0 |
| 657 | } |
588 | } |
| 658 | |
589 | |
| 659 | # @FUNCTION: raw-ldflags |
590 | # @FUNCTION: raw-ldflags |
| 660 | # @USAGE: [flags] |
591 | # @USAGE: [flags] |
| … | |
… | |
| 667 | raw-ldflags() { |
598 | raw-ldflags() { |
| 668 | local x input="$@" |
599 | local x input="$@" |
| 669 | [[ -z ${input} ]] && input=${LDFLAGS} |
600 | [[ -z ${input} ]] && input=${LDFLAGS} |
| 670 | set -- |
601 | set -- |
| 671 | for x in ${input} ; do |
602 | for x in ${input} ; do |
|
|
603 | case ${x} in |
|
|
604 | -Wl,*) |
| 672 | x=${x#-Wl,} |
605 | x=${x#-Wl,} |
| 673 | set -- "$@" ${x//,/ } |
606 | set -- "$@" ${x//,/ } |
|
|
607 | ;; |
|
|
608 | *) # Assume it's a compiler driver flag, so throw it away #441808 |
|
|
609 | ;; |
|
|
610 | esac |
| 674 | done |
611 | done |
| 675 | echo "$@" |
612 | echo "$@" |
| 676 | } |
613 | } |
| 677 | |
614 | |
| 678 | # @FUNCTION: no-as-needed |
615 | # @FUNCTION: no-as-needed |
| … | |
… | |
| 682 | *GNU*) # GNU ld |
619 | *GNU*) # GNU ld |
| 683 | echo "-Wl,--no-as-needed" ;; |
620 | echo "-Wl,--no-as-needed" ;; |
| 684 | esac |
621 | esac |
| 685 | } |
622 | } |
| 686 | |
623 | |
| 687 | # Some tests for when we screw with things and want to make |
624 | fi |
| 688 | # sure we didn't break anything |
|
|
| 689 | #TESTS() { |
|
|
| 690 | # CFLAGS="-a -b -c=1" |
|
|
| 691 | # CXXFLAGS="-x -y -z=2" |
|
|
| 692 | # LDFLAGS="-l -m -n=3" |
|
|
| 693 | # |
|
|
| 694 | # die() { exit 1; } |
|
|
| 695 | # (is-flag 1 2 3) && die |
|
|
| 696 | # (is-ldflag 1 2 3) && die |
|
|
| 697 | # |
|
|
| 698 | # is-flagq -l && die |
|
|
| 699 | # is-ldflagq -a && die |
|
|
| 700 | # is-flagq -a || die |
|
|
| 701 | # is-flagq -x || die |
|
|
| 702 | # is-ldflagq -n=* || die |
|
|
| 703 | # is-ldflagq -n && die |
|
|
| 704 | # |
|
|
| 705 | # strip-unsupported-flags |
|
|
| 706 | # [[ ${CFLAGS} == "-c=1" ]] || die |
|
|
| 707 | # [[ ${CXXFLAGS} == "-y -z=2" ]] || die |
|
|
| 708 | # |
|
|
| 709 | # echo "All tests pass" |
|
|
| 710 | #} |
|
|
| 711 | #TESTS |
|
|
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