/[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 1.33 2005/03/04 13:46:55 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.43 2005/09/15 00:13:10 vapier 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
10ECLASS=toolchain-funcs 10inherit multilib
11INHERITED="$INHERITED $ECLASS"
12 11
13DESCRIPTION="Based on the ${ECLASS} eclass" 12DESCRIPTION="Based on the ${ECLASS} eclass"
14 13
15tc-getPROG() { 14tc-getPROG() {
16 local var=$1 15 local var=$1
19 if [[ -n ${!var} ]] ; then 18 if [[ -n ${!var} ]] ; then
20 echo "${!var}" 19 echo "${!var}"
21 return 0 20 return 0
22 fi 21 fi
23 22
24 if [[ -n $3 ]] ; then 23 local search=
25 local search=$(type -p "$3-${prog}") 24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
25 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
26 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/} 27 [[ -n ${search} ]] && prog=${search##*/}
27 elif [[ -n ${CHOST} ]] ; then
28 local search=$(type -p "${CHOST}-${prog}")
29 [[ -n ${search} ]] && prog=${search##*/}
30 fi
31 28
32 export ${var}=${prog} 29 export ${var}=${prog}
33 echo "${!var}" 30 echo "${!var}"
34} 31}
35 32
52# Returns the name of the java compiler 49# Returns the name of the java compiler
53tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 50tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
54 51
55# Returns the name of the C compiler for build 52# Returns the name of the C compiler for build
56tc-getBUILD_CC() { 53tc-getBUILD_CC() {
54 local v
55 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
57 if [[ -n ${CC_FOR_BUILD} ]] ; then 56 if [[ -n ${!v} ]] ; then
58 export BUILD_CC=${CC_FOR_BUILD} 57 export BUILD_CC=${!v}
59 echo "${CC_FOR_BUILD}" 58 echo "${!v}"
60 return 0 59 return 0
61 fi 60 fi
61 done
62 62
63 local search= 63 local search=
64 if [[ -n ${CBUILD} ]] ; then 64 if [[ -n ${CBUILD} ]] ; then
65 search=$(type -p ${CBUILD}-gcc) 65 search=$(type -p ${CBUILD}-gcc)
66 search=${search##*/} 66 search=${search##*/}
74 74
75# Quick way to export a bunch of vars at once 75# Quick way to export a bunch of vars at once
76tc-export() { 76tc-export() {
77 local var 77 local var
78 for var in "$@" ; do 78 for var in "$@" ; do
79 eval tc-get${var} 79 eval tc-get${var} > /dev/null
80 done 80 done
81} 81}
82 82
83# A simple way to see if we're using a cross-compiler ... 83# A simple way to see if we're using a cross-compiler ...
84tc-is-cross-compiler() { 84tc-is-cross-compiler() {
85 if [[ -n ${CBUILD} ]] ; then
86 return $([[ ${CBUILD} != ${CHOST} ]]) 85 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
87 fi
88 return 1
89} 86}
90 87
91 88
92# Parse information from CBUILD/CHOST/CTARGET rather than 89# Parse information from CBUILD/CHOST/CTARGET rather than
93# use external variables from the profile. 90# use external variables from the profile.
94tc-ninja_magic_to_arch() { 91tc-ninja_magic_to_arch() {
95ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
96 93
97 local type=$1 94 local type=$1
105 hppa*) ninj parisc hppa;; 102 hppa*) ninj parisc hppa;;
106 ia64*) echo ia64;; 103 ia64*) echo ia64;;
107 m68*) echo m68k;; 104 m68*) echo m68k;;
108 mips*) echo mips;; 105 mips*) echo mips;;
109 powerpc64*) echo ppc64;; 106 powerpc64*) echo ppc64;;
110 powerpc*) echo ppc;; 107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
108 && ninj ppc64 ppc \
109 || echo ppc
110 ;;
111 sparc64*) ninj sparc64 sparc;; 111 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 113 && ninj sparc64 sparc \
114 || echo sparc 114 || echo sparc
115 ;; 115 ;;
169} 169}
170# Returns the Micro version 170# Returns the Micro version
171gcc-micro-version() { 171gcc-micro-version() {
172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
173} 173}
174
175# Returns requested gcc specs directive
176# Note; if a spec exists more than once (e.g. in more than one specs file)
177# the last one read is the active definition - i.e. they do not accumulate,
178# each new definition replaces any previous definition.
179gcc-specs-directive() {
180 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}')
181 [[ -z ${specfiles} ]] && return 0
182 awk -v spec=$1 \
183'BEGIN { sstr=""; outside=1 }
184 $1=="*"spec":" { sstr=""; outside=0; next }
185 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
186 { sstr=sstr $0 }
187END { print sstr }' ${specfiles}
188}
189
190# Returns true if gcc sets relro
191gcc-specs-relro() {
192 local directive
193 directive=$(gcc-specs-directive link_command)
194 return $([[ ${directive/\{!norelro:} != ${directive} ]])
195}
196# Returns true if gcc sets now
197gcc-specs-now() {
198 local directive
199 directive=$(gcc-specs-directive link_command)
200 return $([[ ${directive/\{!nonow:} != ${directive} ]])
201}
202# Returns true if gcc builds PIEs
203gcc-specs-pie() {
204 local directive
205 directive=$(gcc-specs-directive cc1)
206 return $([[ ${directive/\{!nopie:} != ${directive} ]])
207}
208# Returns true if gcc builds with the stack protector
209gcc-specs-ssp() {
210 local directive
211 directive=$(gcc-specs-directive cc1)
212 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
213}

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