/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2005 Gentoo Foundation 1# Copyright 1999-2006 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 1.54 2006/01/24 20:12:53 josejx Exp $
4# 4#
5# Author: Toolchain Ninjas <ninjas@gentoo.org> 5# Author: 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
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 ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/} 26 [[ -n ${search} ]] && prog=${search##*/}
27 elif [[ -n ${CHOST} ]] ; then
28 local search=$(type -p "${CHOST}-${prog}")
29 [[ -n ${search} ]] && prog=${search##*/}
30 fi
31 27
32 export ${var}=${prog} 28 export ${var}=${prog}
33 echo "${!var}" 29 echo "${!var}"
34} 30}
35 31
36# Returns the name of the archiver 32# Returns the name of the archiver
37tc-getAR() { tc-getPROG AR ar "${@}"; } 33tc-getAR() { tc-getPROG AR ar "$@"; }
38# Returns the name of the assembler 34# Returns the name of the assembler
39tc-getAS() { tc-getPROG AS as "${@}"; } 35tc-getAS() { tc-getPROG AS as "$@"; }
40# Returns the name of the C compiler 36# Returns the name of the C compiler
41tc-getCC() { tc-getPROG CC gcc "${@}"; } 37tc-getCC() { tc-getPROG CC gcc "$@"; }
42# Returns the name of the C++ compiler 38# Returns the name of the C++ compiler
43tc-getCXX() { tc-getPROG CXX g++ "${@}"; } 39tc-getCXX() { tc-getPROG CXX g++ "$@"; }
44# Returns the name of the linker 40# Returns the name of the linker
45tc-getLD() { tc-getPROG LD ld "${@}"; } 41tc-getLD() { tc-getPROG LD ld "$@"; }
46# Returns the name of the symbol/object thingy 42# Returns the name of the symbol/object thingy
47tc-getNM() { tc-getPROG NM nm "${@}"; } 43tc-getNM() { tc-getPROG NM nm "$@"; }
48# Returns the name of the archiver indexer 44# Returns the name of the archiver indexer
49tc-getRANLIB() { tc-getPROG RANLIB ranlib "${@}"; } 45tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
50# Returns the name of the fortran compiler 46# Returns the name of the fortran compiler
51tc-getF77() { tc-getPROG F77 f77 "${@}"; } 47tc-getF77() { tc-getPROG F77 f77 "$@"; }
52# Returns the name of the java compiler 48# Returns the name of the java compiler
53tc-getGCJ() { tc-getPROG GCJ gcj "${@}"; } 49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
54 50
55# Returns the name of the C compiler for build 51# Returns the name of the C compiler for build
56tc-getBUILD_CC() { 52tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
57 if [[ -n ${CC_FOR_BUILD} ]] ; then 55 if [[ -n ${!v} ]] ; then
58 export BUILD_CC=${CC_FOR_BUILD} 56 export BUILD_CC=${!v}
59 echo "${CC_FOR_BUILD}" 57 echo "${!v}"
60 return 0 58 return 0
61 fi 59 fi
60 done
62 61
63 local search= 62 local search=
64 if [[ -n ${CBUILD} ]] ; then 63 if [[ -n ${CBUILD} ]] ; then
65 search=$(type -p ${CBUILD}-gcc) 64 search=$(type -p ${CBUILD}-gcc)
66 search=${search##*/} 65 search=${search##*/}
67 else
68 search=gcc
69 fi 66 fi
67 search=${search:-gcc}
70 68
71 export BUILD_CC=${search} 69 export BUILD_CC=${search}
72 echo "${search}" 70 echo "${search}"
73} 71}
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() {
85 if [[ -n ${CBUILD} ]] ; then
86 return $([[ ${CBUILD} != ${CHOST} ]]) 83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
87 fi
88 return 1
89} 84}
90 85
91 86
92# Parse information from CBUILD/CHOST/CTARGET rather than 87# Parse information from CBUILD/CHOST/CTARGET rather than
93# use external variables from the profile. 88# use external variables from the profile.
94tc-ninja_magic_to_arch() { 89tc-ninja_magic_to_arch() {
95ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
96 91
97 local type=$1 92 local type=$1
98 local host=$2 93 local host=$2
99 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
100 95
101 case ${host} in 96 case ${host} in
102 alpha*) echo alpha;; 97 alpha*) echo alpha;;
103 x86_64*) ninj x86_64 amd64;;
104 arm*) echo arm;; 98 arm*) echo arm;;
99 bfin*) ninj blackfin bfin;;
100 cris*) echo cris;;
105 hppa*) ninj parisc hppa;; 101 hppa*) ninj parisc hppa;;
102 i?86*) ninj i386 x86;;
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 nios2*) echo nios2;;
110 powerpc*) echo ppc;; 107 nios*) echo nios;;
108 powerpc*)
109 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
110 # have been unified into simply 'powerpc', but until 2.6.16,
111 # ppc32 is still using ARCH="ppc" as default
112 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
113 echo powerpc
114 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
115 if [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
116 echo powerpc
117 else
118 echo ppc
119 fi
120 elif [[ ${host} == powerpc64* ]] ; then
121 echo ppc64
122 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
123 ninj ppc64 ppc
124 else
125 echo ppc
126 fi
127 ;;
128 s390*) echo s390;;
129 sh64*) ninj sh64 sh;;
130 sh*) echo sh;;
111 sparc64*) ninj sparc64 sparc;; 131 sparc64*) ninj sparc64 sparc;;
112 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 132 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
113 && ninj sparc64 sparc \ 133 && ninj sparc64 sparc \
114 || echo sparc 134 || echo sparc
115 ;; 135 ;;
116 s390*) echo s390;; 136 vax*) echo vax;;
117 sh64*) ninj sh64 sh;; 137 x86_64*) ninj x86_64 amd64;;
118 sh*) echo sh;;
119 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};; 138 *) echo ${ARCH};;
121 esac 139 esac
122} 140}
123tc-arch-kernel() { 141tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 142 tc-ninja_magic_to_arch kern $@
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 149 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*} 150 host=${host%%-*}
133 151
134 case ${host} in 152 case ${host} in
135 alpha*) echo big;; 153 alpha*) echo big;;
136 x86_64*) echo little;;
137 arm*b*) echo big;; 154 arm*b*) echo big;;
138 arm*) echo little;; 155 arm*) echo little;;
156 cris*) echo little;;
139 hppa*) echo big;; 157 hppa*) echo big;;
158 i?86*) echo little;;
140 ia64*) echo little;; 159 ia64*) echo little;;
141 m68*) echo big;; 160 m68*) echo big;;
142 mips*l*) echo little;; 161 mips*l*) echo little;;
143 mips*) echo big;; 162 mips*) echo big;;
144 powerpc*) echo big;; 163 powerpc*) echo big;;
145 sparc*) echo big;;
146 s390*) echo big;; 164 s390*) echo big;;
147 sh*b*) echo big;; 165 sh*b*) echo big;;
148 sh*) echo little;; 166 sh*) echo little;;
167 sparc*) echo big;;
149 i?86*) echo little;; 168 x86_64*) echo little;;
150 *) echo wtf;; 169 *) echo wtf;;
151 esac 170 esac
152} 171}
153 172
154# Returns the version as by `$CC -dumpversion` 173# Returns the version as by `$CC -dumpversion`
169} 188}
170# Returns the Micro version 189# Returns the Micro version
171gcc-micro-version() { 190gcc-micro-version() {
172 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 191 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
173} 192}
193
194# Returns requested gcc specs directive
195# Note; later specs normally overwrite earlier ones; however if a later
196# spec starts with '+' then it appends.
197# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
198# as "Reading <file>", in order.
199gcc-specs-directive() {
200 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
201 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
202'BEGIN { pspec=""; spec=""; outside=1 }
203$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
204 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
205 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
206 { spec=spec $0 }
207END { print spec }'
208 return 0
209}
210
211# Returns true if gcc sets relro
212gcc-specs-relro() {
213 local directive
214 directive=$(gcc-specs-directive link_command)
215 return $([[ ${directive/\{!norelro:} != ${directive} ]])
216}
217# Returns true if gcc sets now
218gcc-specs-now() {
219 local directive
220 directive=$(gcc-specs-directive link_command)
221 return $([[ ${directive/\{!nonow:} != ${directive} ]])
222}
223# Returns true if gcc builds PIEs
224gcc-specs-pie() {
225 local directive
226 directive=$(gcc-specs-directive cc1)
227 return $([[ ${directive/\{!nopie:} != ${directive} ]])
228}
229# Returns true if gcc builds with the stack protector
230gcc-specs-ssp() {
231 local directive
232 directive=$(gcc-specs-directive cc1)
233 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
234}
235# Returns true if gcc upgrades fstack-protector to fstack-protector-all
236gcc-specs-ssp-to-all() {
237 local directive
238 directive=$(gcc-specs-directive cc1)
239 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
240}

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