/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2005 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 1.34 2005/03/10 22:43:11 eradicator Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.42 2005/08/02 13:26:59 azarah Exp $
4# 4#
5# Author: Toolchain Ninjas <ninjas@gentoo.org> 5# Author: Toolchain Ninjas <ninjas@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 10inherit multilib
11 11
12ECLASS=toolchain-funcs
13INHERITED="$INHERITED $ECLASS"
14 12
15DESCRIPTION="Based on the ${ECLASS} eclass" 13DESCRIPTION="Based on the ${ECLASS} eclass"
16 14
17tc-getPROG() { 15tc-getPROG() {
18 local var=$1 16 local var=$1
21 if [[ -n ${!var} ]] ; then 19 if [[ -n ${!var} ]] ; then
22 echo "${!var}" 20 echo "${!var}"
23 return 0 21 return 0
24 fi 22 fi
25 23
26 local chost=$3 24 local search=
27 [[ -z ${chost} ]] && chost=$(get_abi_CHOST) 25 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
28 [[ -z ${chost} ]] && chost=${CHOST} 26 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
29 27 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
30 if [[ -n ${chost} ]] ; then
31 local search=$(type -p "${chost}-${prog}")
32 [[ -n ${search} ]] && prog=${search##*/} 28 [[ -n ${search} ]] && prog=${search##*/}
33 fi
34 29
35 export ${var}=${prog} 30 export ${var}=${prog}
36 echo "${!var}" 31 echo "${!var}"
37} 32}
38 33
77 72
78# Quick way to export a bunch of vars at once 73# Quick way to export a bunch of vars at once
79tc-export() { 74tc-export() {
80 local var 75 local var
81 for var in "$@" ; do 76 for var in "$@" ; do
82 eval tc-get${var} 77 eval tc-get${var} > /dev/null
83 done 78 done
84} 79}
85 80
86# A simple way to see if we're using a cross-compiler ... 81# A simple way to see if we're using a cross-compiler ...
87tc-is-cross-compiler() { 82tc-is-cross-compiler() {
90 fi 85 fi
91 return 1 86 return 1
92} 87}
93 88
94 89
95# Parse information from CBUILD/CHOST/CTARGET rather than 90# Parse information from CBUILD/CHOST/CTARGET rather than
96# use external variables from the profile. 91# use external variables from the profile.
97tc-ninja_magic_to_arch() { 92tc-ninja_magic_to_arch() {
98ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 93ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
99 94
100 local type=$1 95 local type=$1
108 hppa*) ninj parisc hppa;; 103 hppa*) ninj parisc hppa;;
109 ia64*) echo ia64;; 104 ia64*) echo ia64;;
110 m68*) echo m68k;; 105 m68*) echo m68k;;
111 mips*) echo mips;; 106 mips*) echo mips;;
112 powerpc64*) echo ppc64;; 107 powerpc64*) echo ppc64;;
113 powerpc*) echo ppc;; 108 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
109 && ninj ppc64 ppc \
110 || echo ppc
111 ;;
114 sparc64*) ninj sparc64 sparc;; 112 sparc64*) ninj sparc64 sparc;;
115 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 113 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
116 && ninj sparc64 sparc \ 114 && ninj sparc64 sparc \
117 || echo sparc 115 || echo sparc
118 ;; 116 ;;
172} 170}
173# Returns the Micro version 171# Returns the Micro version
174gcc-micro-version() { 172gcc-micro-version() {
175 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
176} 174}
175
176# Returns requested gcc specs directive
177# Note; if a spec exists more than once (e.g. in more than one specs file)
178# the last one read is the active definition - i.e. they do not accumulate,
179# each new definition replaces any previous definition.
180gcc-specs-directive() {
181 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}')
182 [[ -z ${specfiles} ]] && return 0
183 awk -v spec=$1 \
184'BEGIN { sstr=""; outside=1 }
185 $1=="*"spec":" { sstr=""; outside=0; next }
186 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
187 { sstr=sstr $0 }
188END { print sstr }' ${specfiles}
189}
190
191# Returns true if gcc sets relro
192gcc-specs-relro() {
193 local directive
194 directive=$(gcc-specs-directive link_command)
195 return $([[ ${directive/\{!norelro:} != ${directive} ]])
196}
197# Returns true if gcc sets now
198gcc-specs-now() {
199 local directive
200 directive=$(gcc-specs-directive link_command)
201 return $([[ ${directive/\{!nonow:} != ${directive} ]])
202}
203# Returns true if gcc builds PIEs
204gcc-specs-pie() {
205 local directive
206 directive=$(gcc-specs-directive cc1)
207 return $([[ ${directive/\{!nopie:} != ${directive} ]])
208}
209# Returns true if gcc builds with the stack protector
210gcc-specs-ssp() {
211 local directive
212 directive=$(gcc-specs-directive cc1)
213 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
214}
215

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