/[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 1.28 2005/01/24 04:32:55 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.50 2006/01/08 03:37:36 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
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
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 ${CHOST} ]] ; then 23 local search=
25 local search=$(type -p "${CHOST}-${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 fi
28 27
29 export ${var}=${prog} 28 export ${var}=${prog}
30 echo "${!var}" 29 echo "${!var}"
31} 30}
32 31
33# Returns the name of the archiver 32# Returns the name of the archiver
34tc-getAR() { tc-getPROG AR ar; } 33tc-getAR() { tc-getPROG AR ar "$@"; }
35# Returns the name of the assembler 34# Returns the name of the assembler
36tc-getAS() { tc-getPROG AS as; } 35tc-getAS() { tc-getPROG AS as "$@"; }
37# Returns the name of the C compiler 36# Returns the name of the C compiler
38tc-getCC() { tc-getPROG CC gcc; } 37tc-getCC() { tc-getPROG CC gcc "$@"; }
39# Returns the name of the C++ compiler 38# Returns the name of the C++ compiler
40tc-getCXX() { tc-getPROG CXX g++; } 39tc-getCXX() { tc-getPROG CXX g++ "$@"; }
41# Returns the name of the linker 40# Returns the name of the linker
42tc-getLD() { tc-getPROG LD ld; } 41tc-getLD() { tc-getPROG LD ld "$@"; }
43# Returns the name of the symbol/object thingy 42# Returns the name of the symbol/object thingy
44tc-getNM() { tc-getPROG NM nm; } 43tc-getNM() { tc-getPROG NM nm "$@"; }
45# Returns the name of the archiver indexer 44# Returns the name of the archiver indexer
46tc-getRANLIB() { tc-getPROG RANLIB ranlib; } 45tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
47# Returns the name of the fortran compiler 46# Returns the name of the fortran compiler
48tc-getF77() { tc-getPROG F77 f77; } 47tc-getF77() { tc-getPROG F77 f77 "$@"; }
49# Returns the name of the java compiler 48# Returns the name of the java compiler
50tc-getGCJ() { tc-getPROG GCJ gcj; } 49tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
51 50
52# Returns the name of the C compiler for build 51# Returns the name of the C compiler for build
53tc-getBUILD_CC() { 52tc-getBUILD_CC() {
53 local v
54 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
54 if [[ -n ${CC_FOR_BUILD} ]] ; then 55 if [[ -n ${!v} ]] ; then
55 export BUILD_CC=${CC_FOR_BUILD} 56 export BUILD_CC=${!v}
56 echo "${CC_FOR_BUILD}" 57 echo "${!v}"
57 return 0 58 return 0
58 fi 59 fi
60 done
59 61
60 local search= 62 local search=
61 if [[ -n ${CBUILD} ]] ; then 63 if [[ -n ${CBUILD} ]] ; then
62 search=$(type -p ${CBUILD}-gcc) 64 search=$(type -p ${CBUILD}-gcc)
63 search=${search##*/} 65 search=${search##*/}
64 else
65 search=gcc
66 fi 66 fi
67 search=${search:-gcc}
67 68
68 export BUILD_CC=${search} 69 export BUILD_CC=${search}
69 echo "${search}" 70 echo "${search}"
70} 71}
71 72
72# Quick way to export a bunch of vars at once 73# Quick way to export a bunch of vars at once
73tc-export() { 74tc-export() {
74 local var 75 local var
75 for var in "$@" ; do 76 for var in "$@" ; do
76 eval tc-get${var} 77 eval tc-get${var} > /dev/null
77 done 78 done
78} 79}
79 80
80# 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 ...
81tc-is-cross-compiler() { 82tc-is-cross-compiler() {
82 if [[ -n ${CBUILD} ]] ; then
83 return $([[ ${CBUILD} != ${CHOST} ]]) 83 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
84 fi
85 return 1
86} 84}
87 85
88 86
89# Parse information from CBUILD/CHOST/CTARGET rather than 87# Parse information from CBUILD/CHOST/CTARGET rather than
90# use external variables from the profile. 88# use external variables from the profile.
91tc-ninja_magic_to_arch() { 89tc-ninja_magic_to_arch() {
92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 90ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
93 91
94 local type=$1 92 local type=$1
95 local host=$2 93 local host=$2
96 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 94 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
97 95
98 case ${host} in 96 case ${host} in
99 alpha*) echo alpha;; 97 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;;
101 arm*) echo arm;; 98 arm*) echo arm;;
99 cris*) echo cris;;
102 hppa*) ninj parisc hppa;; 100 hppa*) ninj parisc hppa;;
101 i?86*) ninj i386 x86;;
103 ia64*) echo ia64;; 102 ia64*) echo ia64;;
104 m68*) echo m68k;; 103 m68*) echo m68k;;
105 mips*) echo mips;; 104 mips*) echo mips;;
106 powerpc64*) echo ppc64;; 105 powerpc*)
107 powerpc*) echo ppc;; 106 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
107 # have been unified into simply 'powerpc'
108 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
109 echo powerpc
110 elif [[ ${host} == powerpc64* ]] ; then
111 echo ppc64
112 else
113 echo ppc
114 fi
115 ;;
116 s390*) echo s390;;
117 sh64*) ninj sh64 sh;;
118 sh*) echo sh;;
108 sparc64*) ninj sparc64 sparc;; 119 sparc64*) ninj sparc64 sparc;;
109 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 120 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
110 && ninj sparc64 sparc \ 121 && ninj sparc64 sparc \
111 || echo sparc 122 || echo sparc
112 ;; 123 ;;
113 s390*) echo s390;; 124 vax*) echo vax;;
114 sh64*) ninj sh64 sh;; 125 x86_64*) ninj x86_64 amd64;;
115 sh*) echo sh;;
116 i?86*) ninj i386 x86;;
117 *) echo ${ARCH};; 126 *) echo ${ARCH};;
118 esac 127 esac
119} 128}
120tc-arch-kernel() { 129tc-arch-kernel() {
121 tc-ninja_magic_to_arch kern $@ 130 tc-ninja_magic_to_arch kern $@
123tc-arch() { 132tc-arch() {
124 tc-ninja_magic_to_arch portage $@ 133 tc-ninja_magic_to_arch portage $@
125} 134}
126tc-endian() { 135tc-endian() {
127 local host=$1 136 local host=$1
128 [[ -z ${host} ]] && host=${CHOST} 137 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
138 host=${host%%-*}
129 139
130 case ${host} in 140 case ${host} in
131 alpha*) echo big;; 141 alpha*) echo big;;
132 x86_64*) echo little;;
133 arm*eb-*) echo big;; 142 arm*b*) echo big;;
134 arm*) echo little;; 143 arm*) echo little;;
144 cris*) echo little;;
135 hppa*) echo big;; 145 hppa*) echo big;;
146 i?86*) echo little;;
136 ia64*) echo little;; 147 ia64*) echo little;;
137 m68*) echo big;; 148 m68*) echo big;;
138 mips*el-*) echo little;; 149 mips*l*) echo little;;
139 mips*) echo big;; 150 mips*) echo big;;
140 powerpc*) echo big;; 151 powerpc*) echo big;;
152 s390*) echo big;;
153 sh*b*) echo big;;
154 sh*) echo little;;
141 sparc*) echo big;; 155 sparc*) echo big;;
142 s390*) echo big;;
143 sh*el-) echo little;;
144 sh*) echo big;;
145 i?86*) echo little;; 156 x86_64*) echo little;;
146 *) echo wtf;; 157 *) echo wtf;;
147 esac 158 esac
148} 159}
149 160
150# Returns the version as by `$CC -dumpversion` 161# Returns the version as by `$CC -dumpversion`
163gcc-minor-version() { 174gcc-minor-version() {
164 echo "$(gcc-version | cut -f2 -d.)" 175 echo "$(gcc-version | cut -f2 -d.)"
165} 176}
166# Returns the Micro version 177# Returns the Micro version
167gcc-micro-version() { 178gcc-micro-version() {
168 echo "$(gcc-fullversion | cut -f3 -d.)" 179 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
169} 180}
181
182# Returns requested gcc specs directive
183# Note; later specs normally overwrite earlier ones; however if a later
184# spec starts with '+' then it appends.
185# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
186# as "Reading <file>", in order.
187gcc-specs-directive() {
188 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
189 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
190'BEGIN { pspec=""; spec=""; outside=1 }
191$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
192 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
193 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
194 { spec=spec $0 }
195END { print spec }'
196 return 0
197}
198
199# Returns true if gcc sets relro
200gcc-specs-relro() {
201 local directive
202 directive=$(gcc-specs-directive link_command)
203 return $([[ ${directive/\{!norelro:} != ${directive} ]])
204}
205# Returns true if gcc sets now
206gcc-specs-now() {
207 local directive
208 directive=$(gcc-specs-directive link_command)
209 return $([[ ${directive/\{!nonow:} != ${directive} ]])
210}
211# Returns true if gcc builds PIEs
212gcc-specs-pie() {
213 local directive
214 directive=$(gcc-specs-directive cc1)
215 return $([[ ${directive/\{!nopie:} != ${directive} ]])
216}
217# Returns true if gcc builds with the stack protector
218gcc-specs-ssp() {
219 local directive
220 directive=$(gcc-specs-directive cc1)
221 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
222}
223# Returns true if gcc upgrades fstack-protector to fstack-protector-all
224gcc-specs-ssp-to-all() {
225 local directive
226 directive=$(gcc-specs-directive cc1)
227 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
228}

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