/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.10 Revision 1.53
1# Copyright 1999-2004 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 1.10 2004/12/06 06:18:59 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.53 2006/01/15 20:31:52 vapier 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
10inherit eutils 10inherit multilib
11
12ECLASS=toolchain-funcs
13INHERITED="$INHERITED $ECLASS"
14 11
15DESCRIPTION="Based on the ${ECLASS} eclass" 12DESCRIPTION="Based on the ${ECLASS} eclass"
16 13
17tc-getPROG() { 14tc-getPROG() {
18 local var="$1" 15 local var=$1
19 local prog="$2" 16 local prog=$2
20 local search=""
21 17
22 if [ -n "${!var}" ] ; then 18 if [[ -n ${!var} ]] ; then
23 echo "${!var}" 19 echo "${!var}"
24 return 0 20 return 0
25 fi 21 fi
26 22
27 if [ -n "${CTARGET}" ] ; then 23 local search=
28 search="$(type -p "${CTARGET}-${prog}")" 24 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
29 elif [ -n "${CHOST}" ] ; then 25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
30 search="$(type -p "${CHOST}-${prog}")" 26 [[ -n ${search} ]] && prog=${search##*/}
31 fi
32 27
33 if [ -n "${search}" ] ; then
34 prog="${search##*/}"
35 fi
36 export ${var}="${prog}" 28 export ${var}=${prog}
37 echo "${!var}" 29 echo "${!var}"
38} 30}
39 31
40# Returns the name of the archiver 32# Returns the name of the archiver
41tc-getAR() { tc-getPROG AR ar; } 33tc-getAR() { tc-getPROG AR ar "$@"; }
42# Returns the name of the assembler 34# Returns the name of the assembler
43tc-getAS() { tc-getPROG AS as; } 35tc-getAS() { tc-getPROG AS as "$@"; }
44# Returns the name of the C compiler 36# Returns the name of the C compiler
45tc-getCC() { tc-getPROG CC gcc; } 37tc-getCC() { tc-getPROG CC gcc "$@"; }
46# Returns the name of the C++ compiler 38# Returns the name of the C++ compiler
47tc-getCXX() { tc-getPROG CXX g++; } 39tc-getCXX() { tc-getPROG CXX g++ "$@"; }
48# Returns the name of the linker 40# Returns the name of the linker
49tc-getLD() { tc-getPROG LD ld; } 41tc-getLD() { tc-getPROG LD ld "$@"; }
50# Returns the name of the symbol/object thingy 42# Returns the name of the symbol/object thingy
51tc-getNM() { tc-getPROG NM nm; } 43tc-getNM() { tc-getPROG NM nm "$@"; }
52# Returns the name of the archiver indexer 44# Returns the name of the archiver indexer
53tc-getRANLIB() { tc-getPROG RANLIB ranlib; } 45tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
54# Returns the name of the fortran compiler 46# Returns the name of the fortran compiler
55tc-getF77() { tc-getPROG F77 f77; } 47tc-getF77() { tc-getPROG F77 f77 "$@"; }
56# Returns the name of the java compiler 48# Returns the name of the java compiler
57tc-getGCJ() { tc-getPROG GCJ gcj; } 49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
58 50
59# Returns the name of the C compiler for build 51# Returns the name of the C compiler for build
60tc-getBUILD_CC() { 52tc-getBUILD_CC() {
61 if [ -n "${CC_FOR_BUILD}" ] ; then 53 local v
62 echo "${CC_FOR_BUILD}" 54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
55 if [[ -n ${!v} ]] ; then
56 export BUILD_CC=${!v}
57 echo "${!v}"
63 return 0 58 return 0
59 fi
60 done
61
62 local search=
63 if [[ -n ${CBUILD} ]] ; then
64 search=$(type -p ${CBUILD}-gcc)
65 search=${search##*/}
64 fi 66 fi
67 search=${search:-gcc}
65 68
66 local search= 69 export BUILD_CC=${search}
67 if [ -n "${CTARGET}" ] ; then
68 search="$(type -p "${CTARGET}-gcc")"
69 elif [ -n "${CHOST}" ] ; then
70 search="$(type -p "${CHOST}-gcc")"
71 fi
72
73 if [ -n "${search}" ] ; then
74 echo "${search##*/}" 70 echo "${search}"
75 else
76 echo "gcc"
77 fi
78} 71}
79 72
80# Quick way to export a bunch of vars at once 73# Quick way to export a bunch of vars at once
81tc-export() { 74tc-export() {
82 local var 75 local var
83 for var in "$@" ; do 76 for var in "$@" ; do
84 eval tc-get${var} 77 eval tc-get${var} > /dev/null
85 done 78 done
86} 79}
87 80
81# A simple way to see if we're using a cross-compiler ...
82tc-is-cross-compiler() {
83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
84}
85
86
87# Parse information from CBUILD/CHOST/CTARGET rather than
88# use external variables from the profile.
89tc-ninja_magic_to_arch() {
90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
91
92 local type=$1
93 local host=$2
94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
95
96 case ${host} in
97 alpha*) echo alpha;;
98 arm*) echo arm;;
99 bfin*) ninj blackfin bfin;;
100 cris*) echo cris;;
101 hppa*) ninj parisc hppa;;
102 i?86*) ninj i386 x86;;
103 ia64*) echo ia64;;
104 m68*) echo m68k;;
105 mips*) echo mips;;
106 nios2*) echo nios2;;
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'
111 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
112 echo powerpc
113 elif [[ ${host} == powerpc64* ]] ; then
114 echo ppc64
115 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
116 ninj ppc64 ppc
117 else
118 echo ppc
119 fi
120 ;;
121 s390*) echo s390;;
122 sh64*) ninj sh64 sh;;
123 sh*) echo sh;;
124 sparc64*) ninj sparc64 sparc;;
125 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
126 && ninj sparc64 sparc \
127 || echo sparc
128 ;;
129 vax*) echo vax;;
130 x86_64*) ninj x86_64 amd64;;
131 *) echo ${ARCH};;
132 esac
133}
134tc-arch-kernel() {
135 tc-ninja_magic_to_arch kern $@
136}
137tc-arch() {
138 tc-ninja_magic_to_arch portage $@
139}
140tc-endian() {
141 local host=$1
142 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
143 host=${host%%-*}
144
145 case ${host} in
146 alpha*) echo big;;
147 arm*b*) echo big;;
148 arm*) echo little;;
149 cris*) echo little;;
150 hppa*) echo big;;
151 i?86*) echo little;;
152 ia64*) echo little;;
153 m68*) echo big;;
154 mips*l*) echo little;;
155 mips*) echo big;;
156 powerpc*) echo big;;
157 s390*) echo big;;
158 sh*b*) echo big;;
159 sh*) echo little;;
160 sparc*) echo big;;
161 x86_64*) echo little;;
162 *) echo wtf;;
163 esac
164}
88 165
89# Returns the version as by `$CC -dumpversion` 166# Returns the version as by `$CC -dumpversion`
90gcc-fullversion() { 167gcc-fullversion() {
91 echo "$($(tc-getCC) -dumpversion)" 168 echo "$($(tc-getCC) -dumpversion)"
92} 169}
102gcc-minor-version() { 179gcc-minor-version() {
103 echo "$(gcc-version | cut -f2 -d.)" 180 echo "$(gcc-version | cut -f2 -d.)"
104} 181}
105# Returns the Micro version 182# Returns the Micro version
106gcc-micro-version() { 183gcc-micro-version() {
107 echo "$(gcc-fullversion | cut -f3 -d.)" 184 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
108} 185}
186
187# Returns requested gcc specs directive
188# Note; later specs normally overwrite earlier ones; however if a later
189# spec starts with '+' then it appends.
190# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
191# as "Reading <file>", in order.
192gcc-specs-directive() {
193 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
194 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
195'BEGIN { pspec=""; spec=""; outside=1 }
196$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
197 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
198 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
199 { spec=spec $0 }
200END { print spec }'
201 return 0
202}
203
204# Returns true if gcc sets relro
205gcc-specs-relro() {
206 local directive
207 directive=$(gcc-specs-directive link_command)
208 return $([[ ${directive/\{!norelro:} != ${directive} ]])
209}
210# Returns true if gcc sets now
211gcc-specs-now() {
212 local directive
213 directive=$(gcc-specs-directive link_command)
214 return $([[ ${directive/\{!nonow:} != ${directive} ]])
215}
216# Returns true if gcc builds PIEs
217gcc-specs-pie() {
218 local directive
219 directive=$(gcc-specs-directive cc1)
220 return $([[ ${directive/\{!nopie:} != ${directive} ]])
221}
222# Returns true if gcc builds with the stack protector
223gcc-specs-ssp() {
224 local directive
225 directive=$(gcc-specs-directive cc1)
226 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
227}
228# Returns true if gcc upgrades fstack-protector to fstack-protector-all
229gcc-specs-ssp-to-all() {
230 local directive
231 directive=$(gcc-specs-directive cc1)
232 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
233}

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