/[gentoo-x86]/eclass/toolchain-funcs.eclass
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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 1.28 2005/01/24 04:32:55 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.47 2005/10/10 21:19:43 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 $(get_abi_CHOST) ]] && search=$(type -p "$(get_abi_CHOST)-${prog}")
26 [[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
26 [[ -n ${search} ]] && prog=${search##*/} 27 [[ -n ${search} ]] && prog=${search##*/}
27 fi
28 28
29 export ${var}=${prog} 29 export ${var}=${prog}
30 echo "${!var}" 30 echo "${!var}"
31} 31}
32 32
33# Returns the name of the archiver 33# Returns the name of the archiver
34tc-getAR() { tc-getPROG AR ar; } 34tc-getAR() { tc-getPROG AR ar "$@"; }
35# Returns the name of the assembler 35# Returns the name of the assembler
36tc-getAS() { tc-getPROG AS as; } 36tc-getAS() { tc-getPROG AS as "$@"; }
37# Returns the name of the C compiler 37# Returns the name of the C compiler
38tc-getCC() { tc-getPROG CC gcc; } 38tc-getCC() { tc-getPROG CC gcc "$@"; }
39# Returns the name of the C++ compiler 39# Returns the name of the C++ compiler
40tc-getCXX() { tc-getPROG CXX g++; } 40tc-getCXX() { tc-getPROG CXX g++ "$@"; }
41# Returns the name of the linker 41# Returns the name of the linker
42tc-getLD() { tc-getPROG LD ld; } 42tc-getLD() { tc-getPROG LD ld "$@"; }
43# Returns the name of the symbol/object thingy 43# Returns the name of the symbol/object thingy
44tc-getNM() { tc-getPROG NM nm; } 44tc-getNM() { tc-getPROG NM nm "$@"; }
45# Returns the name of the archiver indexer 45# Returns the name of the archiver indexer
46tc-getRANLIB() { tc-getPROG RANLIB ranlib; } 46tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
47# Returns the name of the fortran compiler 47# Returns the name of the fortran compiler
48tc-getF77() { tc-getPROG F77 f77; } 48tc-getF77() { tc-getPROG F77 f77 "$@"; }
49# Returns the name of the java compiler 49# Returns the name of the java compiler
50tc-getGCJ() { tc-getPROG GCJ gcj; } 50tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
51 51
52# Returns the name of the C compiler for build 52# Returns the name of the C compiler for build
53tc-getBUILD_CC() { 53tc-getBUILD_CC() {
54 local v
55 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
54 if [[ -n ${CC_FOR_BUILD} ]] ; then 56 if [[ -n ${!v} ]] ; then
55 export BUILD_CC=${CC_FOR_BUILD} 57 export BUILD_CC=${!v}
56 echo "${CC_FOR_BUILD}" 58 echo "${!v}"
57 return 0 59 return 0
58 fi 60 fi
61 done
59 62
60 local search= 63 local search=
61 if [[ -n ${CBUILD} ]] ; then 64 if [[ -n ${CBUILD} ]] ; then
62 search=$(type -p ${CBUILD}-gcc) 65 search=$(type -p ${CBUILD}-gcc)
63 search=${search##*/} 66 search=${search##*/}
64 else
65 search=gcc
66 fi 67 fi
68 search=${search:-gcc}
67 69
68 export BUILD_CC=${search} 70 export BUILD_CC=${search}
69 echo "${search}" 71 echo "${search}"
70} 72}
71 73
72# Quick way to export a bunch of vars at once 74# Quick way to export a bunch of vars at once
73tc-export() { 75tc-export() {
74 local var 76 local var
75 for var in "$@" ; do 77 for var in "$@" ; do
76 eval tc-get${var} 78 eval tc-get${var} > /dev/null
77 done 79 done
78} 80}
79 81
80# A simple way to see if we're using a cross-compiler ... 82# A simple way to see if we're using a cross-compiler ...
81tc-is-cross-compiler() { 83tc-is-cross-compiler() {
82 if [[ -n ${CBUILD} ]] ; then
83 return $([[ ${CBUILD} != ${CHOST} ]]) 84 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
84 fi
85 return 1
86} 85}
87 86
88 87
89# Parse information from CBUILD/CHOST/CTARGET rather than 88# Parse information from CBUILD/CHOST/CTARGET rather than
90# use external variables from the profile. 89# use external variables from the profile.
91tc-ninja_magic_to_arch() { 90tc-ninja_magic_to_arch() {
92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 91ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
93 92
94 local type=$1 93 local type=$1
95 local host=$2 94 local host=$2
96 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 95 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
97 96
98 case ${host} in 97 case ${host} in
99 alpha*) echo alpha;; 98 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;;
101 arm*) echo arm;; 99 arm*) echo arm;;
100 cris*) echo cris;;
102 hppa*) ninj parisc hppa;; 101 hppa*) ninj parisc hppa;;
102 i?86*) ninj i386 x86;;
103 ia64*) echo ia64;; 103 ia64*) echo ia64;;
104 m68*) echo m68k;; 104 m68*) echo m68k;;
105 mips*) echo mips;; 105 mips*) echo mips;;
106 powerpc64*) echo ppc64;; 106 powerpc64*) echo ppc64;;
107 powerpc*) echo ppc;; 107 powerpc*) [[ ${PROFILE_ARCH} == "ppc64" ]] \
108 && ninj ppc64 ppc \
109 || echo ppc
110 ;;
111 s390*) echo s390;;
112 sh64*) ninj sh64 sh;;
113 sh*) echo sh;;
108 sparc64*) ninj sparc64 sparc;; 114 sparc64*) ninj sparc64 sparc;;
109 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 115 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
110 && ninj sparc64 sparc \ 116 && ninj sparc64 sparc \
111 || echo sparc 117 || echo sparc
112 ;; 118 ;;
113 s390*) echo s390;; 119 vax*) echo vax;;
114 sh64*) ninj sh64 sh;; 120 x86_64*) ninj x86_64 amd64;;
115 sh*) echo sh;;
116 i?86*) ninj i386 x86;;
117 *) echo ${ARCH};; 121 *) echo ${ARCH};;
118 esac 122 esac
119} 123}
120tc-arch-kernel() { 124tc-arch-kernel() {
121 tc-ninja_magic_to_arch kern $@ 125 tc-ninja_magic_to_arch kern $@
123tc-arch() { 127tc-arch() {
124 tc-ninja_magic_to_arch portage $@ 128 tc-ninja_magic_to_arch portage $@
125} 129}
126tc-endian() { 130tc-endian() {
127 local host=$1 131 local host=$1
128 [[ -z ${host} ]] && host=${CHOST} 132 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
133 host=${host%%-*}
129 134
130 case ${host} in 135 case ${host} in
131 alpha*) echo big;; 136 alpha*) echo big;;
132 x86_64*) echo little;;
133 arm*eb-*) echo big;; 137 arm*b*) echo big;;
134 arm*) echo little;; 138 arm*) echo little;;
139 cris*) echo little;;
135 hppa*) echo big;; 140 hppa*) echo big;;
141 i?86*) echo little;;
136 ia64*) echo little;; 142 ia64*) echo little;;
137 m68*) echo big;; 143 m68*) echo big;;
138 mips*el-*) echo little;; 144 mips*l*) echo little;;
139 mips*) echo big;; 145 mips*) echo big;;
140 powerpc*) echo big;; 146 powerpc*) echo big;;
147 s390*) echo big;;
148 sh*b*) echo big;;
149 sh*) echo little;;
141 sparc*) echo big;; 150 sparc*) echo big;;
142 s390*) echo big;;
143 sh*el-) echo little;;
144 sh*) echo big;;
145 i?86*) echo little;; 151 x86_64*) echo little;;
146 *) echo wtf;; 152 *) echo wtf;;
147 esac 153 esac
148} 154}
149 155
150# Returns the version as by `$CC -dumpversion` 156# Returns the version as by `$CC -dumpversion`
163gcc-minor-version() { 169gcc-minor-version() {
164 echo "$(gcc-version | cut -f2 -d.)" 170 echo "$(gcc-version | cut -f2 -d.)"
165} 171}
166# Returns the Micro version 172# Returns the Micro version
167gcc-micro-version() { 173gcc-micro-version() {
168 echo "$(gcc-fullversion | cut -f3 -d.)" 174 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
169} 175}
176
177# Returns requested gcc specs directive
178# Note; later specs normally overwrite earlier ones; however if a later
179# spec starts with '+' then it appends.
180# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
181# as "Reading <file>", in order.
182gcc-specs-directive() {
183 local specfiles=$($(tc-getCC) -v 2>&1 | awk '$1=="Reading" {print $NF}')
184 $(tc-getCC) -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
185'BEGIN { pspec=""; spec=""; outside=1 }
186$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
187 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
188 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
189 { spec=spec $0 }
190END { print spec }'
191 return 0
192}
193
194# Returns true if gcc sets relro
195gcc-specs-relro() {
196 local directive
197 directive=$(gcc-specs-directive link_command)
198 return $([[ ${directive/\{!norelro:} != ${directive} ]])
199}
200# Returns true if gcc sets now
201gcc-specs-now() {
202 local directive
203 directive=$(gcc-specs-directive link_command)
204 return $([[ ${directive/\{!nonow:} != ${directive} ]])
205}
206# Returns true if gcc builds PIEs
207gcc-specs-pie() {
208 local directive
209 directive=$(gcc-specs-directive cc1)
210 return $([[ ${directive/\{!nopie:} != ${directive} ]])
211}
212# Returns true if gcc builds with the stack protector
213gcc-specs-ssp() {
214 local directive
215 directive=$(gcc-specs-directive cc1)
216 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
217}
218# Returns true if gcc upgrades fstack-protector to fstack-protector-all
219gcc-specs-ssp-to-all() {
220 local directive
221 directive=$(gcc-specs-directive cc1)
222 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
223}

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