/[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 1.45 2005/10/06 01:52:51 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=$1
17 local prog=${2} 16 local prog=$2
18 17
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
36# Returns the name of the archiver 33# Returns the name of the archiver
37tc-getAR() { tc-getPROG AR ar "${@}"; } 34tc-getAR() { tc-getPROG AR ar "$@"; }
38# Returns the name of the assembler 35# Returns the name of the assembler
39tc-getAS() { tc-getPROG AS as "${@}"; } 36tc-getAS() { tc-getPROG AS as "$@"; }
40# Returns the name of the C compiler 37# Returns the name of the C compiler
41tc-getCC() { tc-getPROG CC gcc "${@}"; } 38tc-getCC() { tc-getPROG CC gcc "$@"; }
42# Returns the name of the C++ compiler 39# Returns the name of the C++ compiler
43tc-getCXX() { tc-getPROG CXX g++ "${@}"; } 40tc-getCXX() { tc-getPROG CXX g++ "$@"; }
44# Returns the name of the linker 41# Returns the name of the linker
45tc-getLD() { tc-getPROG LD ld "${@}"; } 42tc-getLD() { tc-getPROG LD ld "$@"; }
46# Returns the name of the symbol/object thingy 43# Returns the name of the symbol/object thingy
47tc-getNM() { tc-getPROG NM nm "${@}"; } 44tc-getNM() { tc-getPROG NM nm "$@"; }
48# Returns the name of the archiver indexer 45# Returns the name of the archiver indexer
49tc-getRANLIB() { tc-getPROG RANLIB ranlib "${@}"; } 46tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
50# Returns the name of the fortran compiler 47# Returns the name of the fortran compiler
51tc-getF77() { tc-getPROG F77 f77 "${@}"; } 48tc-getF77() { tc-getPROG F77 f77 "$@"; }
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=${search##*/}
67 else
68 search=gcc
69 fi 67 fi
68 search=${search:-gcc}
70 69
71 export BUILD_CC=${search} 70 export BUILD_CC=${search}
72 echo "${search}" 71 echo "${search}"
73} 72}
74 73
75# Quick way to export a bunch of vars at once 74# Quick way to export a bunch of vars at once
76tc-export() { 75tc-export() {
77 local var 76 local var
78 for var in "$@" ; do 77 for var in "$@" ; do
79 eval tc-get${var} 78 eval tc-get${var} > /dev/null
80 done 79 done
81} 80}
82 81
83# A simple way to see if we're using a cross-compiler ... 82# A simple way to see if we're using a cross-compiler ...
84tc-is-cross-compiler() { 83tc-is-cross-compiler() {
85 if [[ -n ${CBUILD} ]] ; then
86 return $([[ ${CBUILD} != ${CHOST} ]]) 84 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
87 fi
88 return 1
89} 85}
90 86
91 87
92# Parse information from CBUILD/CHOST/CTARGET rather than 88# Parse information from CBUILD/CHOST/CTARGET rather than
93# use external variables from the profile. 89# use external variables from the profile.
94tc-ninja_magic_to_arch() { 90tc-ninja_magic_to_arch() {
95ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 91ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
96 92
97 local type=$1 93 local type=$1
100 96
101 case ${host} in 97 case ${host} in
102 alpha*) echo alpha;; 98 alpha*) echo alpha;;
103 x86_64*) ninj x86_64 amd64;; 99 x86_64*) ninj x86_64 amd64;;
104 arm*) echo arm;; 100 arm*) echo arm;;
101 thumb*) echo arm;;
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 ;;
134 case ${host} in 134 case ${host} in
135 alpha*) echo big;; 135 alpha*) echo big;;
136 x86_64*) echo little;; 136 x86_64*) echo little;;
137 arm*b*) echo big;; 137 arm*b*) echo big;;
138 arm*) echo little;; 138 arm*) echo little;;
139 thumb*) echo little;;
139 hppa*) echo big;; 140 hppa*) echo big;;
140 ia64*) echo little;; 141 ia64*) echo little;;
141 m68*) echo big;; 142 m68*) echo big;;
142 mips*l*) echo little;; 143 mips*l*) echo little;;
143 mips*) echo big;; 144 mips*) echo big;;
169} 170}
170# Returns the Micro version 171# Returns the Micro version
171gcc-micro-version() { 172gcc-micro-version() {
172 echo "$(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 [[ -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}

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