/[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 1.64 2007/01/07 11:39:08 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.69 2007/03/27 01:46:50 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 $2 ; }
171} 191}
172# Returns the Micro version 192# Returns the Micro version
173gcc-micro-version() { 193gcc-micro-version() {
174 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 194 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
175} 195}
196# Returns the installation directory - internal toolchain
197# function for use by _gcc-specs-exists (for flag-o-matic).
198_gcc-install-dir() {
199 echo "$($(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}
176 207
177# Returns requested gcc specs directive 208# Returns requested gcc specs directive unprocessed - for used by
209# gcc-specs-directive()
178# Note; later specs normally overwrite earlier ones; however if a later 210# Note; later specs normally overwrite earlier ones; however if a later
179# spec starts with '+' then it appends. 211# spec starts with '+' then it appends.
180# 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"
181# 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 $(gcc_install_dir)/specs so the result is the
217# same either way.
182gcc-specs-directive() { 218_gcc-specs-directive_raw() {
183 local cc=$(tc-getCC) 219 local cc=$(tc-getCC)
184 local specfiles=$(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}')
185 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ 221 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
186'BEGIN { pspec=""; spec=""; outside=1 } 222'BEGIN { pspec=""; spec=""; outside=1 }
187$1=="*"directive":" { pspec=spec; spec=""; outside=0; next } 223$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
188 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next } 224 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
189 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next } 225 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
190 { spec=spec $0 } 226 { spec=spec $0 }
191END { print spec }' 227END { print spec }'
228 return 0
229}
230
231# Return the requested gcc specs directive, with all included
232# specs expanded.
233# Note, it does not check for inclusion loops, which cause it
234# to never finish - but such loops are invalid for gcc and we're
235# assuming gcc is operational.
236gcc-specs-directive() {
237 local directive subdname subdirective
238 directive="$(_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}"
192 return 0 246 return 0
193} 247}
194 248
195# Returns true if gcc sets relro 249# Returns true if gcc sets relro
196gcc-specs-relro() { 250gcc-specs-relro() {

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