/[gentoo-x86]/eclass/toolchain-funcs.eclass
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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 1.61 2006/09/24 07:20:33 grobian 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
10inherit multilib 10___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
11[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
11 12
12DESCRIPTION="Based on the ${ECLASS} eclass" 13DESCRIPTION="Based on the ${ECLASS} eclass"
13 14
14tc-getPROG() { 15tc-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 ...
90tc-is-cross-compiler() { 91tc-is-cross-compiler() {
91 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 92 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
92} 93}
93 94
95# See if this toolchain is a softfloat based one.
96# The possible return values:
97# - only: the target is always softfloat (never had fpu)
98# - yes: the target should support softfloat
99# - no: the target should support hardfloat
100# This allows us to react differently where packages accept
101# softfloat flags in the case where support is optional, but
102# rejects softfloat flags where the target always lacks an fpu.
103tc-is-softfloat() {
104 case ${CTARGET} in
105 bfin*|h8300*)
106 echo "only" ;;
107 *)
108 [[ ${CTARGET//_/-} == *-softfloat-* ]] \
109 && echo "yes" \
110 || echo "no"
111 ;;
112 esac
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.
97tc-ninja_magic_to_arch() { 117tc-ninja_magic_to_arch() {
98ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 118ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
150 tc-ninja_magic_to_arch kern $@ 170 tc-ninja_magic_to_arch kern $@
151} 171}
152tc-arch() { 172tc-arch() {
153 tc-ninja_magic_to_arch portage $@ 173 tc-ninja_magic_to_arch portage $@
154} 174}
155tc-endian() {
156 local host=$1
157 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
158 host=${host%%-*}
159
160 case ${host} in
161 alpha*) echo big;;
162 arm*b*) echo big;;
163 arm*) echo little;;
164 cris*) echo little;;
165 hppa*) echo big;;
166 i?86*) echo little;;
167 ia64*) echo little;;
168 m68*) echo big;;
169 mips*l*) echo little;;
170 mips*) echo big;;
171 powerpc*) echo big;;
172 s390*) echo big;;
173 sh*b*) echo big;;
174 sh*) echo little;;
175 sparc*) echo big;;
176 x86_64*) echo little;;
177 *) echo wtf;;
178 esac
179}
180 175
181# Returns the version as by `$CC -dumpversion` 176# Returns the version as by `$CC -dumpversion`
182gcc-fullversion() { 177gcc-fullversion() {
183 echo "$($(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>
186gcc-version() { 181gcc-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
190gcc-major-version() { 185gcc-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
194gcc-minor-version() { 189gcc-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
198gcc-micro-version() { 193gcc-micro-version() {
199 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 194 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
200} 195}
196# Returns the installation directory - internal toolchain
197# function for use by _gcc-specs-exists (for flag-o-matic).
198_gcc-install-dir() {
199 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\
200 awk '$1=="install:" {print $2}')"
201}
202# Returns true if the indicated specs file exists - internal toolchain
203# function for use by flag-o-matic.
204_gcc-specs-exists() {
205 [[ -f $(_gcc-install-dir)/$1 ]]
206}
201 207
202# Returns requested gcc specs directive 208# Returns requested gcc specs directive unprocessed - for used by
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
214# $(gcc_install_dir)/specs, the built-in specs aren't read, however by
215# the same token anything from 'gcc -dumpspecs' is overridden by
216# the contents of $(gcc_install_dir)/specs so the result is the
217# same either way.
207gcc-specs-directive() { 218_gcc-specs-directive_raw() {
208 local cc=$(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 $0 }
216END { print spec }' 227END { print spec }'
217 return 0 228 return 0
218} 229}
219 230
231# Return the requested gcc specs directive, with all included
232# specs expanded.
233# Note, it does not check for inclusion loops, which cause it
234# to never finish - but such loops are invalid for gcc and we're
235# assuming gcc is operational.
236gcc-specs-directive() {
237 local directive subdname subdirective
238 directive="$(_gcc-specs-directive_raw $1)"
239 while [[ ${directive} == *%\(*\)* ]]; do
240 subdname=${directive/*%\(}
241 subdname=${subdname/\)*}
242 subdirective="$(_gcc-specs-directive_raw ${subdname})"
243 directive="${directive//\%(${subdname})/${subdirective}}"
244 done
245 echo "${directive}"
246 return 0
247}
248
220# Returns true if gcc sets relro 249# Returns true if gcc sets relro
221gcc-specs-relro() { 250gcc-specs-relro() {
222 local directive 251 local directive
223 directive=$(gcc-specs-directive link_command) 252 directive=$(gcc-specs-directive link_command)
224 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 253 return $([[ ${directive/\{!norelro:} != ${directive} ]])
262# gen_usr_ldscript libfoo.so 291# gen_usr_ldscript libfoo.so
263# 292#
264# Note that you should in general use the unversioned name of 293# Note that you should in general use the unversioned name of
265# the library, as ldconfig should usually update it correctly 294# the library, as ldconfig should usually update it correctly
266# to point to the latest version of the library present. 295# to point to the latest version of the library present.
267_tc_gen_usr_ldscript() { 296gen_usr_ldscript() {
268 local lib libdir=$(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
278 if [[ ${USERLAND} == "Darwin" ]]; 307 if [[ ${USERLAND} == "Darwin" ]] ; then
279 then
280 ewarn "Not creating fake dynamic library for $lib on Darwin," 308 ewarn "Not creating fake dynamic library for $lib on Darwin;"
281 ewarn "making a symlink instead." 309 ewarn "making a symlink instead."
282 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}" 310 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
283 else 311 else
284 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 312 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
285 /* GNU ld script 313 /* GNU ld script
295 END_LDSCRIPT 323 END_LDSCRIPT
296 fi 324 fi
297 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 325 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
298 done 326 done
299} 327}
300gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

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