/[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 1.62 2006/09/24 12:23:22 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.72 2007/07/22 19:56:37 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 ; }
102 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 122 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
103 123
104 case ${host} in 124 case ${host} in
105 alpha*) echo alpha;; 125 alpha*) echo alpha;;
106 arm*) echo arm;; 126 arm*) echo arm;;
127 avr*) ninj avr32 avr;;
107 bfin*) ninj blackfin bfin;; 128 bfin*) ninj blackfin bfin;;
108 cris*) echo cris;; 129 cris*) echo cris;;
109 hppa*) ninj parisc hppa;; 130 hppa*) ninj parisc hppa;;
110 i?86*) ninj i386 x86;; 131 i?86*) ninj i386 x86;;
111 ia64*) echo ia64;; 132 ia64*) echo ia64;;
178 esac 199 esac
179} 200}
180 201
181# Returns the version as by `$CC -dumpversion` 202# Returns the version as by `$CC -dumpversion`
182gcc-fullversion() { 203gcc-fullversion() {
183 echo "$($(tc-getCC) -dumpversion)" 204 $(tc-getCC "$@") -dumpversion
184} 205}
185# Returns the version, but only the <major>.<minor> 206# Returns the version, but only the <major>.<minor>
186gcc-version() { 207gcc-version() {
187 echo "$(gcc-fullversion | cut -f1,2 -d.)" 208 gcc-fullversion "$@" | cut -f1,2 -d.
188} 209}
189# Returns the Major version 210# Returns the Major version
190gcc-major-version() { 211gcc-major-version() {
191 echo "$(gcc-version | cut -f1 -d.)" 212 gcc-version "$@" | cut -f1 -d.
192} 213}
193# Returns the Minor version 214# Returns the Minor version
194gcc-minor-version() { 215gcc-minor-version() {
195 echo "$(gcc-version | cut -f2 -d.)" 216 gcc-version "$@" | cut -f2 -d.
196} 217}
197# Returns the Micro version 218# Returns the Micro version
198gcc-micro-version() { 219gcc-micro-version() {
199 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 220 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
200} 221}
222# Returns the installation directory - internal toolchain
223# function for use by _gcc-specs-exists (for flag-o-matic).
224_gcc-install-dir() {
225 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\
226 awk '$1=="install:" {print $2}')"
227}
228# Returns true if the indicated specs file exists - internal toolchain
229# function for use by flag-o-matic.
230_gcc-specs-exists() {
231 [[ -f $(_gcc-install-dir)/$1 ]]
232}
201 233
202# Returns requested gcc specs directive 234# Returns requested gcc specs directive unprocessed - for used by
235# gcc-specs-directive()
203# Note; later specs normally overwrite earlier ones; however if a later 236# Note; later specs normally overwrite earlier ones; however if a later
204# spec starts with '+' then it appends. 237# spec starts with '+' then it appends.
205# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" 238# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
206# as "Reading <file>", in order. 239# as "Reading <file>", in order. Strictly speaking, if there's a
240# $(gcc_install_dir)/specs, the built-in specs aren't read, however by
241# the same token anything from 'gcc -dumpspecs' is overridden by
242# the contents of $(gcc_install_dir)/specs so the result is the
243# same either way.
207gcc-specs-directive() { 244_gcc-specs-directive_raw() {
208 local cc=$(tc-getCC) 245 local cc=$(tc-getCC)
209 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') 246 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
210 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ 247 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
211'BEGIN { pspec=""; spec=""; outside=1 } 248'BEGIN { pspec=""; spec=""; outside=1 }
212$1=="*"directive":" { pspec=spec; spec=""; outside=0; next } 249$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
215 { spec=spec $0 } 252 { spec=spec $0 }
216END { print spec }' 253END { print spec }'
217 return 0 254 return 0
218} 255}
219 256
257# Return the requested gcc specs directive, with all included
258# specs expanded.
259# Note, it does not check for inclusion loops, which cause it
260# to never finish - but such loops are invalid for gcc and we're
261# assuming gcc is operational.
262gcc-specs-directive() {
263 local directive subdname subdirective
264 directive="$(_gcc-specs-directive_raw $1)"
265 while [[ ${directive} == *%\(*\)* ]]; do
266 subdname=${directive/*%\(}
267 subdname=${subdname/\)*}
268 subdirective="$(_gcc-specs-directive_raw ${subdname})"
269 directive="${directive//\%(${subdname})/${subdirective}}"
270 done
271 echo "${directive}"
272 return 0
273}
274
220# Returns true if gcc sets relro 275# Returns true if gcc sets relro
221gcc-specs-relro() { 276gcc-specs-relro() {
222 local directive 277 local directive
223 directive=$(gcc-specs-directive link_command) 278 directive=$(gcc-specs-directive link_command)
224 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 279 return $([[ ${directive/\{!norelro:} != ${directive} ]])
262# gen_usr_ldscript libfoo.so 317# gen_usr_ldscript libfoo.so
263# 318#
264# Note that you should in general use the unversioned name of 319# Note that you should in general use the unversioned name of
265# the library, as ldconfig should usually update it correctly 320# the library, as ldconfig should usually update it correctly
266# to point to the latest version of the library present. 321# to point to the latest version of the library present.
267_tc_gen_usr_ldscript() { 322gen_usr_ldscript() {
268 local lib libdir=$(get_libdir) output_format="" 323 local lib libdir=$(get_libdir) output_format=""
269 # Just make sure it exists 324 # Just make sure it exists
270 dodir /usr/${libdir} 325 dodir /usr/${libdir}
271 326
272 # OUTPUT_FORMAT gives hints to the linker as to what binary format 327 # OUTPUT_FORMAT gives hints to the linker as to what binary format
294 END_LDSCRIPT 349 END_LDSCRIPT
295 fi 350 fi
296 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 351 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
297 done 352 done
298} 353}
299gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

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