/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.1.1.1 Revision 1.30
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 1.1.1.1 2005/11/30 09:59:25 chriswhite Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.30 2005/02/13 21:17:24 eradicator Exp $
4# 4#
5# Author: Toolchain Ninjas <toolchain@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
10inherit multilib 10ECLASS=toolchain-funcs
11INHERITED="$INHERITED $ECLASS"
11 12
12DESCRIPTION="Based on the ${ECLASS} eclass" 13DESCRIPTION="Based on the ${ECLASS} eclass"
13 14
14tc-getPROG() { 15tc-getPROG() {
15 local var=$1 16 local var=$1
18 if [[ -n ${!var} ]] ; then 19 if [[ -n ${!var} ]] ; then
19 echo "${!var}" 20 echo "${!var}"
20 return 0 21 return 0
21 fi 22 fi
22 23
23 local search= 24 if [[ -n ${CHOST} ]] ; then
24 [[ -n $3 ]] && search=$(type -p "$3-${prog}") 25 local search=$(type -p "${CHOST}-${prog}")
25 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/} 26 [[ -n ${search} ]] && prog=${search##*/}
27 fi
27 28
28 export ${var}=${prog} 29 export ${var}=${prog}
29 echo "${!var}" 30 echo "${!var}"
30} 31}
31 32
32# Returns the name of the archiver 33# Returns the name of the archiver
33tc-getAR() { tc-getPROG AR ar "$@"; } 34tc-getAR() { tc-getPROG AR ar; }
34# Returns the name of the assembler 35# Returns the name of the assembler
35tc-getAS() { tc-getPROG AS as "$@"; } 36tc-getAS() { tc-getPROG AS as; }
36# Returns the name of the C compiler 37# Returns the name of the C compiler
37tc-getCC() { tc-getPROG CC gcc "$@"; } 38tc-getCC() { tc-getPROG CC gcc; }
38# Returns the name of the C++ compiler 39# Returns the name of the C++ compiler
39tc-getCXX() { tc-getPROG CXX g++ "$@"; } 40tc-getCXX() { tc-getPROG CXX g++; }
40# Returns the name of the linker 41# Returns the name of the linker
41tc-getLD() { tc-getPROG LD ld "$@"; } 42tc-getLD() { tc-getPROG LD ld; }
42# Returns the name of the symbol/object thingy 43# Returns the name of the symbol/object thingy
43tc-getNM() { tc-getPROG NM nm "$@"; } 44tc-getNM() { tc-getPROG NM nm; }
44# Returns the name of the archiver indexer 45# Returns the name of the archiver indexer
45tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 46tc-getRANLIB() { tc-getPROG RANLIB ranlib; }
46# Returns the name of the fortran compiler 47# Returns the name of the fortran compiler
47tc-getF77() { tc-getPROG F77 f77 "$@"; } 48tc-getF77() { tc-getPROG F77 f77; }
48# Returns the name of the java compiler 49# Returns the name of the java compiler
49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 50tc-getGCJ() { tc-getPROG GCJ gcj; }
50 51
51# Returns the name of the C compiler for build 52# Returns the name of the C compiler for build
52tc-getBUILD_CC() { 53tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
55 if [[ -n ${!v} ]] ; then 54 if [[ -n ${CC_FOR_BUILD} ]] ; then
56 export BUILD_CC=${!v} 55 export BUILD_CC=${CC_FOR_BUILD}
57 echo "${!v}" 56 echo "${CC_FOR_BUILD}"
58 return 0 57 return 0
59 fi 58 fi
60 done
61 59
62 local search= 60 local search=
63 if [[ -n ${CBUILD} ]] ; then 61 if [[ -n ${CBUILD} ]] ; then
64 search=$(type -p ${CBUILD}-gcc) 62 search=$(type -p ${CBUILD}-gcc)
65 search=${search##*/} 63 search=${search##*/}
64 else
65 search=gcc
66 fi 66 fi
67 search=${search:-gcc}
68 67
69 export BUILD_CC=${search} 68 export BUILD_CC=${search}
70 echo "${search}" 69 echo "${search}"
71} 70}
72 71
73# Quick way to export a bunch of vars at once 72# Quick way to export a bunch of vars at once
74tc-export() { 73tc-export() {
75 local var 74 local var
76 for var in "$@" ; do 75 for var in "$@" ; do
77 eval tc-get${var} > /dev/null 76 eval tc-get${var}
78 done 77 done
79} 78}
80 79
81# A simple way to see if we're using a cross-compiler ... 80# A simple way to see if we're using a cross-compiler ...
82tc-is-cross-compiler() { 81tc-is-cross-compiler() {
82 if [[ -n ${CBUILD} ]] ; then
83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 83 return $([[ ${CBUILD} != ${CHOST} ]])
84 fi
85 return 1
84} 86}
85 87
86 88
87# Parse information from CBUILD/CHOST/CTARGET rather than 89# Parse information from CBUILD/CHOST/CTARGET rather than
88# use external variables from the profile. 90# use external variables from the profile.
89tc-ninja_magic_to_arch() { 91tc-ninja_magic_to_arch() {
90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
91 93
92 local type=$1 94 local type=$1
93 local host=$2 95 local host=$2
94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 96 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
95 97
96 case ${host} in 98 case ${host} in
97 alpha*) echo alpha;; 99 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;;
98 arm*) echo arm;; 101 arm*) echo arm;;
99 cris*) echo cris;;
100 hppa*) ninj parisc hppa;; 102 hppa*) ninj parisc hppa;;
101 i?86*) ninj i386 x86;;
102 ia64*) echo ia64;; 103 ia64*) echo ia64;;
103 m68*) echo m68k;; 104 m68*) echo m68k;;
104 mips*) echo mips;; 105 mips*) echo mips;;
105 powerpc64*) echo ppc64;; 106 powerpc64*) echo ppc64;;
106 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \ 107 powerpc*) echo ppc;;
107 && ninj ppc64 ppc \
108 || echo ppc
109 ;;
110 s390*) echo s390;;
111 sh64*) ninj sh64 sh;;
112 sh*) echo sh;;
113 sparc64*) ninj sparc64 sparc;; 108 sparc64*) ninj sparc64 sparc;;
114 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 109 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
115 && ninj sparc64 sparc \ 110 && ninj sparc64 sparc \
116 || echo sparc 111 || echo sparc
117 ;; 112 ;;
118 vax*) echo vax;; 113 s390*) echo s390;;
119 x86_64*) ninj x86_64 amd64;; 114 sh64*) ninj sh64 sh;;
115 sh*) echo sh;;
116 i?86*) ninj i386 x86;;
120 *) echo ${ARCH};; 117 *) echo ${ARCH};;
121 esac 118 esac
122} 119}
123tc-arch-kernel() { 120tc-arch-kernel() {
124 tc-ninja_magic_to_arch kern $@ 121 tc-ninja_magic_to_arch kern $@
127 tc-ninja_magic_to_arch portage $@ 124 tc-ninja_magic_to_arch portage $@
128} 125}
129tc-endian() { 126tc-endian() {
130 local host=$1 127 local host=$1
131 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 128 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
132 host=${host%%-*}
133 129
134 case ${host} in 130 case ${host} in
135 alpha*) echo big;; 131 alpha*) echo big;;
132 x86_64*) echo little;;
136 arm*b*) echo big;; 133 arm*eb-*) echo big;;
137 arm*) echo little;; 134 arm*) echo little;;
138 cris*) echo little;;
139 hppa*) echo big;; 135 hppa*) echo big;;
140 i?86*) echo little;;
141 ia64*) echo little;; 136 ia64*) echo little;;
142 m68*) echo big;; 137 m68*) echo big;;
143 mips*l*) echo little;; 138 mips*el-*) echo little;;
144 mips*) echo big;; 139 mips*) echo big;;
145 powerpc*) echo big;; 140 powerpc*) echo big;;
141 sparc*) echo big;;
146 s390*) echo big;; 142 s390*) echo big;;
143 sh*el-) echo little;;
147 sh*b*) echo big;; 144 sh*) echo big;;
148 sh*) echo little;; 145 i?86*) echo little;;
149 sparc*) echo big;;
150 x86_64*) echo little;;
151 *) echo wtf;; 146 *) echo wtf;;
152 esac 147 esac
153} 148}
154 149
155# Returns the version as by `$CC -dumpversion` 150# Returns the version as by `$CC -dumpversion`
170} 165}
171# Returns the Micro version 166# Returns the Micro version
172gcc-micro-version() { 167gcc-micro-version() {
173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 168 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
174} 169}
175
176# Returns requested gcc specs directive
177# Note; later specs normally overwrite earlier ones; however if a later
178# spec starts with '+' then it appends.
179# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
180# as "Reading <file>", in order.
181gcc-specs-directive() {
182 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
183 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
184'BEGIN { pspec=""; spec=""; outside=1 }
185$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
186 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
187 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
188 { spec=spec $0 }
189END { print spec }'
190 return 0
191}
192
193# Returns true if gcc sets relro
194gcc-specs-relro() {
195 local directive
196 directive=$(gcc-specs-directive link_command)
197 return $([[ ${directive/\{!norelro:} != ${directive} ]])
198}
199# Returns true if gcc sets now
200gcc-specs-now() {
201 local directive
202 directive=$(gcc-specs-directive link_command)
203 return $([[ ${directive/\{!nonow:} != ${directive} ]])
204}
205# Returns true if gcc builds PIEs
206gcc-specs-pie() {
207 local directive
208 directive=$(gcc-specs-directive cc1)
209 return $([[ ${directive/\{!nopie:} != ${directive} ]])
210}
211# Returns true if gcc builds with the stack protector
212gcc-specs-ssp() {
213 local directive
214 directive=$(gcc-specs-directive cc1)
215 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
216}
217# Returns true if gcc upgrades fstack-protector to fstack-protector-all
218gcc-specs-ssp-to-all() {
219 local directive
220 directive=$(gcc-specs-directive cc1)
221 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
222}

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