| 1 | # Copyright 1999-2006 Gentoo Foundation |
1 | # Copyright 1999-2007 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/toolchain-funcs.eclass,v 1.60 2006/08/19 13:52:02 vapier Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.70 2007/06/16 07:11:43 vapier Exp $ |
| 4 | # |
4 | # |
| 5 | # Author: Toolchain Ninjas <toolchain@gentoo.org> |
5 | # Maintainer: Toolchain Ninjas <toolchain@gentoo.org> |
| 6 | # |
6 | # |
| 7 | # This eclass contains (or should) functions to get common info |
7 | # This eclass contains (or should) functions to get common info |
| 8 | # about the toolchain (libc/compiler/binutils/etc...) |
8 | # about the toolchain (libc/compiler/binutils/etc...) |
| 9 | |
9 | |
| 10 | inherit multilib |
10 | ___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" |
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11 | [[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib |
| 11 | |
12 | |
| 12 | DESCRIPTION="Based on the ${ECLASS} eclass" |
13 | DESCRIPTION="Based on the ${ECLASS} eclass" |
| 13 | |
14 | |
| 14 | tc-getPROG() { |
15 | tc-getPROG() { |
| 15 | local var=$1 |
16 | local var=$1 |
| … | |
… | |
| 89 | # A simple way to see if we're using a cross-compiler ... |
90 | # A simple way to see if we're using a cross-compiler ... |
| 90 | tc-is-cross-compiler() { |
91 | tc-is-cross-compiler() { |
| 91 | return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) |
92 | return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) |
| 92 | } |
93 | } |
| 93 | |
94 | |
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95 | # See if this toolchain is a softfloat based one. |
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96 | # The possible return values: |
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97 | # - only: the target is always softfloat (never had fpu) |
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98 | # - yes: the target should support softfloat |
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99 | # - no: the target should support hardfloat |
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100 | # This allows us to react differently where packages accept |
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101 | # softfloat flags in the case where support is optional, but |
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102 | # rejects softfloat flags where the target always lacks an fpu. |
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103 | tc-is-softfloat() { |
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104 | case ${CTARGET} in |
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105 | bfin*|h8300*) |
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106 | echo "only" ;; |
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107 | *) |
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108 | [[ ${CTARGET//_/-} == *-softfloat-* ]] \ |
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109 | && echo "yes" \ |
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110 | || echo "no" |
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111 | ;; |
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112 | esac |
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113 | } |
| 94 | |
114 | |
| 95 | # Parse information from CBUILD/CHOST/CTARGET rather than |
115 | # Parse information from CBUILD/CHOST/CTARGET rather than |
| 96 | # use external variables from the profile. |
116 | # use external variables from the profile. |
| 97 | tc-ninja_magic_to_arch() { |
117 | tc-ninja_magic_to_arch() { |
| 98 | ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } |
118 | ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } |
| … | |
… | |
| 150 | tc-ninja_magic_to_arch kern $@ |
170 | tc-ninja_magic_to_arch kern $@ |
| 151 | } |
171 | } |
| 152 | tc-arch() { |
172 | tc-arch() { |
| 153 | tc-ninja_magic_to_arch portage $@ |
173 | tc-ninja_magic_to_arch portage $@ |
| 154 | } |
174 | } |
| 155 | tc-endian() { |
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| 156 | local host=$1 |
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| 157 | [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} |
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| 158 | host=${host%%-*} |
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| 159 | |
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| 160 | case ${host} in |
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| 161 | alpha*) echo big;; |
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| 162 | arm*b*) echo big;; |
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| 163 | arm*) echo little;; |
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| 164 | cris*) echo little;; |
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| 165 | hppa*) echo big;; |
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| 166 | i?86*) echo little;; |
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| 167 | ia64*) echo little;; |
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| 168 | m68*) echo big;; |
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| 169 | mips*l*) echo little;; |
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| 170 | mips*) echo big;; |
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| 171 | powerpc*) echo big;; |
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| 172 | s390*) echo big;; |
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| 173 | sh*b*) echo big;; |
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| 174 | sh*) echo little;; |
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| 175 | sparc*) echo big;; |
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| 176 | x86_64*) echo little;; |
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| 177 | *) echo wtf;; |
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| 178 | esac |
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| 179 | } |
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| 180 | |
175 | |
| 181 | # Returns the version as by `$CC -dumpversion` |
176 | # Returns the version as by `$CC -dumpversion` |
| 182 | gcc-fullversion() { |
177 | gcc-fullversion() { |
| 183 | echo "$($(tc-getCC) -dumpversion)" |
178 | $(tc-getCC "$@") -dumpversion |
| 184 | } |
179 | } |
| 185 | # Returns the version, but only the <major>.<minor> |
180 | # Returns the version, but only the <major>.<minor> |
| 186 | gcc-version() { |
181 | gcc-version() { |
| 187 | echo "$(gcc-fullversion | cut -f1,2 -d.)" |
182 | gcc-fullversion "$@" | cut -f1,2 -d. |
| 188 | } |
183 | } |
| 189 | # Returns the Major version |
184 | # Returns the Major version |
| 190 | gcc-major-version() { |
185 | gcc-major-version() { |
| 191 | echo "$(gcc-version | cut -f1 -d.)" |
186 | gcc-version "$@" | cut -f1 -d. |
| 192 | } |
187 | } |
| 193 | # Returns the Minor version |
188 | # Returns the Minor version |
| 194 | gcc-minor-version() { |
189 | gcc-minor-version() { |
| 195 | echo "$(gcc-version | cut -f2 -d.)" |
190 | gcc-version "$@" | cut -f2 -d. |
| 196 | } |
191 | } |
| 197 | # Returns the Micro version |
192 | # Returns the Micro version |
| 198 | gcc-micro-version() { |
193 | gcc-micro-version() { |
| 199 | echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" |
194 | gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- |
| 200 | } |
195 | } |
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196 | # Returns the installation directory - internal toolchain |
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197 | # function for use by _gcc-specs-exists (for flag-o-matic). |
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198 | _gcc-install-dir() { |
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199 | echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ |
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200 | awk '$1=="install:" {print $2}')" |
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201 | } |
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202 | # Returns true if the indicated specs file exists - internal toolchain |
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203 | # function for use by flag-o-matic. |
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204 | _gcc-specs-exists() { |
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205 | [[ -f $(_gcc-install-dir)/$1 ]] |
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206 | } |
| 201 | |
207 | |
| 202 | # Returns requested gcc specs directive |
208 | # Returns requested gcc specs directive unprocessed - for used by |
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209 | # gcc-specs-directive() |
| 203 | # Note; later specs normally overwrite earlier ones; however if a later |
210 | # Note; later specs normally overwrite earlier ones; however if a later |
| 204 | # spec starts with '+' then it appends. |
211 | # spec starts with '+' then it appends. |
| 205 | # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" |
212 | # gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" |
| 206 | # as "Reading <file>", in order. |
213 | # as "Reading <file>", in order. Strictly speaking, if there's a |
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214 | # $(gcc_install_dir)/specs, the built-in specs aren't read, however by |
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215 | # the same token anything from 'gcc -dumpspecs' is overridden by |
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216 | # the contents of $(gcc_install_dir)/specs so the result is the |
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217 | # same either way. |
| 207 | gcc-specs-directive() { |
218 | _gcc-specs-directive_raw() { |
| 208 | local cc=$(tc-getCC) |
219 | local cc=$(tc-getCC) |
| 209 | local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') |
220 | local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') |
| 210 | ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ |
221 | ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ |
| 211 | 'BEGIN { pspec=""; spec=""; outside=1 } |
222 | 'BEGIN { pspec=""; spec=""; outside=1 } |
| 212 | $1=="*"directive":" { pspec=spec; spec=""; outside=0; next } |
223 | $1=="*"directive":" { pspec=spec; spec=""; outside=0; next } |
| … | |
… | |
| 215 | { spec=spec $0 } |
226 | { spec=spec $0 } |
| 216 | END { print spec }' |
227 | END { print spec }' |
| 217 | return 0 |
228 | return 0 |
| 218 | } |
229 | } |
| 219 | |
230 | |
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231 | # Return the requested gcc specs directive, with all included |
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232 | # specs expanded. |
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233 | # Note, it does not check for inclusion loops, which cause it |
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234 | # to never finish - but such loops are invalid for gcc and we're |
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235 | # assuming gcc is operational. |
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236 | gcc-specs-directive() { |
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237 | local directive subdname subdirective |
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238 | directive="$(_gcc-specs-directive_raw $1)" |
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239 | while [[ ${directive} == *%\(*\)* ]]; do |
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240 | subdname=${directive/*%\(} |
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241 | subdname=${subdname/\)*} |
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242 | subdirective="$(_gcc-specs-directive_raw ${subdname})" |
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243 | directive="${directive//\%(${subdname})/${subdirective}}" |
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244 | done |
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245 | echo "${directive}" |
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246 | return 0 |
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247 | } |
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248 | |
| 220 | # Returns true if gcc sets relro |
249 | # Returns true if gcc sets relro |
| 221 | gcc-specs-relro() { |
250 | gcc-specs-relro() { |
| 222 | local directive |
251 | local directive |
| 223 | directive=$(gcc-specs-directive link_command) |
252 | directive=$(gcc-specs-directive link_command) |
| 224 | return $([[ ${directive/\{!norelro:} != ${directive} ]]) |
253 | return $([[ ${directive/\{!norelro:} != ${directive} ]]) |
| … | |
… | |
| 262 | # gen_usr_ldscript libfoo.so |
291 | # gen_usr_ldscript libfoo.so |
| 263 | # |
292 | # |
| 264 | # Note that you should in general use the unversioned name of |
293 | # Note that you should in general use the unversioned name of |
| 265 | # the library, as ldconfig should usually update it correctly |
294 | # the library, as ldconfig should usually update it correctly |
| 266 | # to point to the latest version of the library present. |
295 | # to point to the latest version of the library present. |
| 267 | _tc_gen_usr_ldscript() { |
296 | gen_usr_ldscript() { |
| 268 | local lib libdir=$(get_libdir) output_format="" |
297 | local lib libdir=$(get_libdir) output_format="" |
| 269 | # Just make sure it exists |
298 | # Just make sure it exists |
| 270 | dodir /usr/${libdir} |
299 | dodir /usr/${libdir} |
| 271 | |
300 | |
| 272 | # OUTPUT_FORMAT gives hints to the linker as to what binary format |
301 | # OUTPUT_FORMAT gives hints to the linker as to what binary format |
| 273 | # is referenced ... makes multilib saner |
302 | # is referenced ... makes multilib saner |
| 274 | output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') |
303 | output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') |
| 275 | [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" |
304 | [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" |
| 276 | |
305 | |
| 277 | for lib in "$@" ; do |
306 | for lib in "$@" ; do |
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307 | if [[ ${USERLAND} == "Darwin" ]] ; then |
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308 | ewarn "Not creating fake dynamic library for $lib on Darwin;" |
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309 | ewarn "making a symlink instead." |
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310 | dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}" |
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311 | else |
| 278 | cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT |
312 | cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT |
| 279 | /* GNU ld script |
313 | /* GNU ld script |
| 280 | Since Gentoo has critical dynamic libraries |
314 | Since Gentoo has critical dynamic libraries |
| 281 | in /lib, and the static versions in /usr/lib, |
315 | in /lib, and the static versions in /usr/lib, |
| 282 | we need to have a "fake" dynamic lib in /usr/lib, |
316 | we need to have a "fake" dynamic lib in /usr/lib, |
| 283 | otherwise we run into linking problems. |
317 | otherwise we run into linking problems. |
| 284 | |
318 | |
| 285 | See bug http://bugs.gentoo.org/4411 for more info. |
319 | See bug http://bugs.gentoo.org/4411 for more info. |
| 286 | */ |
320 | */ |
| 287 | ${output_format} |
321 | ${output_format} |
| 288 | GROUP ( /${libdir}/${lib} ) |
322 | GROUP ( /${libdir}/${lib} ) |
| 289 | END_LDSCRIPT |
323 | END_LDSCRIPT |
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324 | fi |
| 290 | fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" |
325 | fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" |
| 291 | done |
326 | done |
| 292 | } |
327 | } |
| 293 | gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; } |
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