/[gentoo-x86]/eclass/toolchain-funcs.eclass
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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 1.24 2005/01/15 09:05:56 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.58 2006/04/02 10:10:59 robbat2 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 "$@"; }
38# Returns the name of the C preprocessor
39tc-getCPP() { tc-getPROG CPP cpp "$@"; }
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() {
55 local v
56 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
54 if [[ -n ${CC_FOR_BUILD} ]] ; then 57 if [[ -n ${!v} ]] ; then
55 export BUILD_CC=${CC_FOR_BUILD} 58 export BUILD_CC=${!v}
56 echo "${CC_FOR_BUILD}" 59 echo "${!v}"
57 return 0 60 return 0
58 fi 61 fi
62 done
59 63
60 local search= 64 local search=
61 if [[ -n ${CBUILD} ]] ; then 65 if [[ -n ${CBUILD} ]] ; then
62 search=$(type -p ${CBUILD}-gcc) 66 search=$(type -p ${CBUILD}-gcc)
63 search=${search##*/} 67 search=${search##*/}
64 else
65 search=gcc
66 fi 68 fi
69 search=${search:-gcc}
67 70
68 export BUILD_CC=${search} 71 export BUILD_CC=${search}
69 echo "${search}" 72 echo "${search}"
70} 73}
71 74
72# Quick way to export a bunch of vars at once 75# Quick way to export a bunch of vars at once
73tc-export() { 76tc-export() {
74 local var 77 local var
75 for var in "$@" ; do 78 for var in "$@" ; do
76 eval tc-get${var} 79 eval tc-get${var} > /dev/null
77 done 80 done
78} 81}
79 82
80# A simple way to see if we're using a cross-compiler ... 83# A simple way to see if we're using a cross-compiler ...
81tc-is-cross-compiler() { 84tc-is-cross-compiler() {
82 if [[ -n ${CBUILD} ]] ; then
83 return $([[ ${CBUILD} != ${CHOST} ]]) 85 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
84 fi
85 return 1
86} 86}
87 87
88 88
89# Parse information from CBUILD/CHOST/CTARGET rather than 89# Parse information from CBUILD/CHOST/CTARGET rather than
90# use external variables from the profile. 90# use external variables from the profile.
91tc-ninja_magic_to_arch() { 91tc-ninja_magic_to_arch() {
92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 92ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
93 93
94 local type=$1 94 local type=$1
95 local host=$2 95 local host=$2
96 [[ -z ${host} ]] && arg=${CTARGET:-${CHOST}} 96 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
97 97
98 case ${host} in 98 case ${host} in
99 alpha*) echo alpha;; 99 alpha*) echo alpha;;
100 x86_64*) ninj x86_64 amd64;;
101 arm*) echo arm;; 100 arm*) echo arm;;
101 bfin*) ninj blackfin bfin;;
102 cris*) echo cris;;
102 hppa*) ninj parisc hppa;; 103 hppa*) ninj parisc hppa;;
104 i?86*) ninj i386 x86;;
103 ia64*) echo ia64;; 105 ia64*) echo ia64;;
104 m68*) echo m68k;; 106 m68*) echo m68k;;
105 mips*) echo mips;; 107 mips*) echo mips;;
106 powerpc64*) echo ppc64;; 108 nios2*) echo nios2;;
107 powerpc*) echo ppc;; 109 nios*) echo nios;;
108 sparc64*) ninj sparc64 sparc;; 110 powerpc*)
109 sparc*) echo sparc;; 111 # Starting with linux-2.6.15, the 'ppc' and 'ppc64' trees
112 # have been unified into simply 'powerpc', but until 2.6.16,
113 # ppc32 is still using ARCH="ppc" as default
114 if [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.16) ]] && [[ ${type} == "kern" ]] ; then
115 echo powerpc
116 elif [[ $(KV_to_int ${KV}) -eq $(KV_to_int 2.6.15) ]] && [[ ${type} == "kern" ]] ; then
117 if [[ ${host} == powerpc64* ]] || [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
118 echo powerpc
119 else
120 echo ppc
121 fi
122 elif [[ ${host} == powerpc64* ]] ; then
123 echo ppc64
124 elif [[ ${PROFILE_ARCH} == "ppc64" ]] ; then
125 ninj ppc64 ppc
126 else
127 echo ppc
128 fi
129 ;;
110 s390*) echo s390;; 130 s390*) echo s390;;
111 sh64*) ninj sh64 sh;; 131 sh64*) ninj sh64 sh;;
112 sh*) echo sh;; 132 sh*) echo sh;;
113 i?86*) ninj i386 x86;; 133 sparc64*) ninj sparc64 sparc;;
114 *) echo wtf;; 134 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
135 && ninj sparc64 sparc \
136 || echo sparc
137 ;;
138 vax*) echo vax;;
139 x86_64*) ninj x86_64 amd64;;
140 *) echo ${ARCH};;
115 esac 141 esac
116} 142}
117tc-arch-kernel() { 143tc-arch-kernel() {
118 tc-ninja_magic_to_arch kern $@ 144 tc-ninja_magic_to_arch kern $@
119} 145}
120tc-arch() { 146tc-arch() {
121 tc-ninja_magic_to_arch portage $@ 147 tc-ninja_magic_to_arch portage $@
122} 148}
123tc-endian() { 149tc-endian() {
124 local host=$1 150 local host=$1
125 [[ -z ${host} ]] && host=${CHOST} 151 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
152 host=${host%%-*}
126 153
127 case ${host} in 154 case ${host} in
128 alpha*) echo big;; 155 alpha*) echo big;;
129 x86_64*) echo little;;
130 arm*eb-*) echo big;; 156 arm*b*) echo big;;
131 arm*) echo little;; 157 arm*) echo little;;
158 cris*) echo little;;
132 hppa*) echo big;; 159 hppa*) echo big;;
160 i?86*) echo little;;
133 ia64*) echo little;; 161 ia64*) echo little;;
134 m68*) echo big;; 162 m68*) echo big;;
135 mips*el-*) echo little;; 163 mips*l*) echo little;;
136 mips*) echo big;; 164 mips*) echo big;;
137 powerpc*) echo big;; 165 powerpc*) echo big;;
166 s390*) echo big;;
167 sh*b*) echo big;;
168 sh*) echo little;;
138 sparc*) echo big;; 169 sparc*) echo big;;
139 s390*) echo big;;
140 sh*el-) echo little;;
141 sh*) echo big;;
142 i?86*) echo little;; 170 x86_64*) echo little;;
143 *) echo wtf;; 171 *) echo wtf;;
144 esac 172 esac
145} 173}
146 174
147# Returns the version as by `$CC -dumpversion` 175# Returns the version as by `$CC -dumpversion`
160gcc-minor-version() { 188gcc-minor-version() {
161 echo "$(gcc-version | cut -f2 -d.)" 189 echo "$(gcc-version | cut -f2 -d.)"
162} 190}
163# Returns the Micro version 191# Returns the Micro version
164gcc-micro-version() { 192gcc-micro-version() {
165 echo "$(gcc-fullversion | cut -f3 -d.)" 193 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)"
166} 194}
195
196# Returns requested gcc specs directive
197# Note; later specs normally overwrite earlier ones; however if a later
198# spec starts with '+' then it appends.
199# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
200# as "Reading <file>", in order.
201gcc-specs-directive() {
202 local cc=$(tc-getCC)
203 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
204 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
205'BEGIN { pspec=""; spec=""; outside=1 }
206$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
207 outside || NF==0 || ( substr($1,1,1)=="*" && substr($1,length($1),1)==":" ) { outside=1; next }
208 spec=="" && substr($0,1,1)=="+" { spec=pspec " " substr($0,2); next }
209 { spec=spec $0 }
210END { print spec }'
211 return 0
212}
213
214# Returns true if gcc sets relro
215gcc-specs-relro() {
216 local directive
217 directive=$(gcc-specs-directive link_command)
218 return $([[ ${directive/\{!norelro:} != ${directive} ]])
219}
220# Returns true if gcc sets now
221gcc-specs-now() {
222 local directive
223 directive=$(gcc-specs-directive link_command)
224 return $([[ ${directive/\{!nonow:} != ${directive} ]])
225}
226# Returns true if gcc builds PIEs
227gcc-specs-pie() {
228 local directive
229 directive=$(gcc-specs-directive cc1)
230 return $([[ ${directive/\{!nopie:} != ${directive} ]])
231}
232# Returns true if gcc builds with the stack protector
233gcc-specs-ssp() {
234 local directive
235 directive=$(gcc-specs-directive cc1)
236 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]])
237}
238# Returns true if gcc upgrades fstack-protector to fstack-protector-all
239gcc-specs-ssp-to-all() {
240 local directive
241 directive=$(gcc-specs-directive cc1)
242 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
243}

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