/[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 1.32 2005/03/04 12:37:55 eradicator Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.41 2005/08/01 07:27:27 kevquinn 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" 11
12 12
13DESCRIPTION="Based on the ${ECLASS} eclass" 13DESCRIPTION="Based on the ${ECLASS} eclass"
14 14
15tc-getPROG() { 15tc-getPROG() {
16 local var=${1} 16 local var=$1
17 local prog=${2} 17 local prog=$2
18 18
19 if [[ -n ${!var} ]] ; then 19 if [[ -n ${!var} ]] ; then
20 echo "${!var}" 20 echo "${!var}"
21 return 0 21 return 0
22 fi 22 fi
23 23
24 if [[ -n ${3} ]] ; then 24 local search=
25 local search=$(type -p "${3}-${prog}") 25 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
26 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
27 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/} 28 [[ -n ${search} ]] && prog=${search##*/}
27 elif [[ -n ${CHOST} ]] ; then
28 local search=$(type -p "${CHOST}-${prog}")
29 [[ -n ${search} ]] && prog=${search##*/}
30 fi
31 29
32 export ${var}=${prog} 30 export ${var}=${prog}
33 echo "${!var}" 31 echo "${!var}"
34} 32}
35 33
36# Returns the name of the archiver 34# Returns the name of the archiver
37tc-getAR() { tc-getPROG AR ar "${@}"; } 35tc-getAR() { tc-getPROG AR ar "$@"; }
38# Returns the name of the assembler 36# Returns the name of the assembler
39tc-getAS() { tc-getPROG AS as "${@}"; } 37tc-getAS() { tc-getPROG AS as "$@"; }
40# Returns the name of the C compiler 38# Returns the name of the C compiler
41tc-getCC() { tc-getPROG CC gcc "${@}"; } 39tc-getCC() { tc-getPROG CC gcc "$@"; }
42# Returns the name of the C++ compiler 40# Returns the name of the C++ compiler
43tc-getCXX() { tc-getPROG CXX g++ "${@}"; } 41tc-getCXX() { tc-getPROG CXX g++ "$@"; }
44# Returns the name of the linker 42# Returns the name of the linker
45tc-getLD() { tc-getPROG LD ld "${@}"; } 43tc-getLD() { tc-getPROG LD ld "$@"; }
46# Returns the name of the symbol/object thingy 44# Returns the name of the symbol/object thingy
47tc-getNM() { tc-getPROG NM nm "${@}"; } 45tc-getNM() { tc-getPROG NM nm "$@"; }
48# Returns the name of the archiver indexer 46# Returns the name of the archiver indexer
49tc-getRANLIB() { tc-getPROG RANLIB ranlib "${@}"; } 47tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
50# Returns the name of the fortran compiler 48# Returns the name of the fortran compiler
51tc-getF77() { tc-getPROG F77 f77 "${@}"; } 49tc-getF77() { tc-getPROG F77 f77 "$@"; }
52# Returns the name of the java compiler 50# Returns the name of the java compiler
53tc-getGCJ() { tc-getPROG GCJ gcj "${@}"; } 51tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
54 52
55# Returns the name of the C compiler for build 53# Returns the name of the C compiler for build
56tc-getBUILD_CC() { 54tc-getBUILD_CC() {
57 if [[ -n ${CC_FOR_BUILD} ]] ; then 55 if [[ -n ${CC_FOR_BUILD} ]] ; then
58 export BUILD_CC=${CC_FOR_BUILD} 56 export BUILD_CC=${CC_FOR_BUILD}
74 72
75# Quick way to export a bunch of vars at once 73# Quick way to export a bunch of vars at once
76tc-export() { 74tc-export() {
77 local var 75 local var
78 for var in "$@" ; do 76 for var in "$@" ; do
79 eval tc-get${var} 77 eval tc-get${var} > /dev/null
80 done 78 done
81} 79}
82 80
83# 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 ...
84tc-is-cross-compiler() { 82tc-is-cross-compiler() {
87 fi 85 fi
88 return 1 86 return 1
89} 87}
90 88
91 89
92# Parse information from CBUILD/CHOST/CTARGET rather than 90# Parse information from CBUILD/CHOST/CTARGET rather than
93# use external variables from the profile. 91# use external variables from the profile.
94tc-ninja_magic_to_arch() { 92tc-ninja_magic_to_arch() {
95ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 93ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
96 94
97 local type=$1 95 local type=$1
105 hppa*) ninj parisc hppa;; 103 hppa*) ninj parisc hppa;;
106 ia64*) echo ia64;; 104 ia64*) echo ia64;;
107 m68*) echo m68k;; 105 m68*) echo m68k;;
108 mips*) echo mips;; 106 mips*) echo mips;;
109 powerpc64*) echo ppc64;; 107 powerpc64*) echo ppc64;;
110 powerpc*) echo ppc;; 108 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
109 && ninj ppc64 ppc \
110 || echo ppc
111 ;;
111 sparc64*) ninj sparc64 sparc;; 112 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 113 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 114 && ninj sparc64 sparc \
114 || echo sparc 115 || echo sparc
115 ;; 116 ;;
169} 170}
170# Returns the Micro version 171# Returns the Micro version
171gcc-micro-version() { 172gcc-micro-version() {
172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
173} 174}
175
176# Returns requested gcc specs directive
177# Note; if a spec exists more than once (e.g. in more than one specs file)
178# the last one read is the active definition - i.e. they do not accumulate,
179# each new definition replaces any previous definition.
180gcc-specs-directive() {
181 local specfiles=$($(tc-getCC) -v 2>&1 | grep "^Reading" | awk '{print $NF}')
182 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}
214

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