/[gentoo-x86]/eclass/toolchain-funcs.eclass
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Revision 1.24 Revision 1.42
1# Copyright 1999-2004 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 1.24 2005/01/15 09:05:56 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.42 2005/08/02 13:26:59 azarah 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" 11
12 12
13DESCRIPTION="Based on the ${ECLASS} eclass" 13DESCRIPTION="Based on the ${ECLASS} eclass"
14 14
15tc-getPROG() { 15tc-getPROG() {
16 local var=$1 16 local var=$1
19 if [[ -n ${!var} ]] ; then 19 if [[ -n ${!var} ]] ; then
20 echo "${!var}" 20 echo "${!var}"
21 return 0 21 return 0
22 fi 22 fi
23 23
24 if [[ -n ${CHOST} ]] ; then 24 local search=
25 local search=$(type -p "${CHOST}-${prog}") 25 [[ -n $3 ]] && search=$(type -p "$3-${prog}")
26 [[ -z ${search} && -n $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
27 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/} 28 [[ -n ${search} ]] && prog=${search##*/}
27 fi
28 29
29 export ${var}=${prog} 30 export ${var}=${prog}
30 echo "${!var}" 31 echo "${!var}"
31} 32}
32 33
33# Returns the name of the archiver 34# Returns the name of the archiver
34tc-getAR() { tc-getPROG AR ar; } 35tc-getAR() { tc-getPROG AR ar "$@"; }
35# Returns the name of the assembler 36# Returns the name of the assembler
36tc-getAS() { tc-getPROG AS as; } 37tc-getAS() { tc-getPROG AS as "$@"; }
37# Returns the name of the C compiler 38# Returns the name of the C compiler
38tc-getCC() { tc-getPROG CC gcc; } 39tc-getCC() { tc-getPROG CC gcc "$@"; }
39# Returns the name of the C++ compiler 40# Returns the name of the C++ compiler
40tc-getCXX() { tc-getPROG CXX g++; } 41tc-getCXX() { tc-getPROG CXX g++ "$@"; }
41# Returns the name of the linker 42# Returns the name of the linker
42tc-getLD() { tc-getPROG LD ld; } 43tc-getLD() { tc-getPROG LD ld "$@"; }
43# Returns the name of the symbol/object thingy 44# Returns the name of the symbol/object thingy
44tc-getNM() { tc-getPROG NM nm; } 45tc-getNM() { tc-getPROG NM nm "$@"; }
45# Returns the name of the archiver indexer 46# Returns the name of the archiver indexer
46tc-getRANLIB() { tc-getPROG RANLIB ranlib; } 47tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
47# Returns the name of the fortran compiler 48# Returns the name of the fortran compiler
48tc-getF77() { tc-getPROG F77 f77; } 49tc-getF77() { tc-getPROG F77 f77 "$@"; }
49# Returns the name of the java compiler 50# Returns the name of the java compiler
50tc-getGCJ() { tc-getPROG GCJ gcj; } 51tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
51 52
52# Returns the name of the C compiler for build 53# Returns the name of the C compiler for build
53tc-getBUILD_CC() { 54tc-getBUILD_CC() {
54 if [[ -n ${CC_FOR_BUILD} ]] ; then 55 if [[ -n ${CC_FOR_BUILD} ]] ; then
55 export BUILD_CC=${CC_FOR_BUILD} 56 export BUILD_CC=${CC_FOR_BUILD}
71 72
72# Quick way to export a bunch of vars at once 73# Quick way to export a bunch of vars at once
73tc-export() { 74tc-export() {
74 local var 75 local var
75 for var in "$@" ; 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() {
84 fi 85 fi
85 return 1 86 return 1
86} 87}
87 88
88 89
89# Parse information from CBUILD/CHOST/CTARGET rather than 90# Parse information from CBUILD/CHOST/CTARGET rather than
90# use external variables from the profile. 91# use external variables from the profile.
91tc-ninja_magic_to_arch() { 92tc-ninja_magic_to_arch() {
92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 93ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
93 94
94 local type=$1 95 local type=$1
95 local host=$2 96 local host=$2
96 [[ -z ${host} ]] && arg=${CTARGET:-${CHOST}} 97 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
97 98
98 case ${host} in 99 case ${host} in
99 alpha*) echo alpha;; 100 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;; 101 x86_64*) ninj x86_64 amd64;;
101 arm*) echo arm;; 102 arm*) echo arm;;
102 hppa*) ninj parisc hppa;; 103 hppa*) ninj parisc hppa;;
103 ia64*) echo ia64;; 104 ia64*) echo ia64;;
104 m68*) echo m68k;; 105 m68*) echo m68k;;
105 mips*) echo mips;; 106 mips*) echo mips;;
106 powerpc64*) echo ppc64;; 107 powerpc64*) echo ppc64;;
107 powerpc*) echo ppc;; 108 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
109 && ninj ppc64 ppc \
110 || echo ppc
111 ;;
108 sparc64*) ninj sparc64 sparc;; 112 sparc64*) ninj sparc64 sparc;;
109 sparc*) echo sparc;; 113 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
114 && ninj sparc64 sparc \
115 || echo sparc
116 ;;
110 s390*) echo s390;; 117 s390*) echo s390;;
111 sh64*) ninj sh64 sh;; 118 sh64*) ninj sh64 sh;;
112 sh*) echo sh;; 119 sh*) echo sh;;
113 i?86*) ninj i386 x86;; 120 i?86*) ninj i386 x86;;
114 *) echo wtf;; 121 *) echo ${ARCH};;
115 esac 122 esac
116} 123}
117tc-arch-kernel() { 124tc-arch-kernel() {
118 tc-ninja_magic_to_arch kern $@ 125 tc-ninja_magic_to_arch kern $@
119} 126}
120tc-arch() { 127tc-arch() {
121 tc-ninja_magic_to_arch portage $@ 128 tc-ninja_magic_to_arch portage $@
122} 129}
123tc-endian() { 130tc-endian() {
124 local host=$1 131 local host=$1
125 [[ -z ${host} ]] && host=${CHOST} 132 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
133 host=${host%%-*}
126 134
127 case ${host} in 135 case ${host} in
128 alpha*) echo big;; 136 alpha*) echo big;;
129 x86_64*) echo little;; 137 x86_64*) echo little;;
130 arm*eb-*) echo big;; 138 arm*b*) echo big;;
131 arm*) echo little;; 139 arm*) echo little;;
132 hppa*) echo big;; 140 hppa*) echo big;;
133 ia64*) echo little;; 141 ia64*) echo little;;
134 m68*) echo big;; 142 m68*) echo big;;
135 mips*el-*) echo little;; 143 mips*l*) echo little;;
136 mips*) echo big;; 144 mips*) echo big;;
137 powerpc*) echo big;; 145 powerpc*) echo big;;
138 sparc*) echo big;; 146 sparc*) echo big;;
139 s390*) echo big;; 147 s390*) echo big;;
140 sh*el-) echo little;;
141 sh*) echo big;; 148 sh*b*) echo big;;
149 sh*) echo little;;
142 i?86*) echo little;; 150 i?86*) echo little;;
143 *) echo wtf;; 151 *) echo wtf;;
144 esac 152 esac
145} 153}
146 154
160gcc-minor-version() { 168gcc-minor-version() {
161 echo "$(gcc-version | cut -f2 -d.)" 169 echo "$(gcc-version | cut -f2 -d.)"
162} 170}
163# Returns the Micro version 171# Returns the Micro version
164gcc-micro-version() { 172gcc-micro-version() {
165 echo "$(gcc-fullversion | cut -f3 -d.)" 173 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
166} 174}
175
176# Returns requested gcc specs directive
177# Note; if a spec exists more than once (e.g. in more than one specs file)
178# the last one read is the active definition - i.e. they do not accumulate,
179# each new definition replaces any previous definition.
180gcc-specs-directive() {
181 local specfiles=$($(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}
215

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