/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2007 Gentoo Foundation 1# Copyright 1999-2007 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 1.70 2007/06/16 07:11:43 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.76 2008/04/16 14:16:45 vapier Exp $
4# 4
5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER:
5# Maintainer: Toolchain Ninjas <toolchain@gentoo.org> 7# Toolchain Ninjas <toolchain@gentoo.org>
6# 8# @BLURB: functions to query common info about the toolchain
7# This eclass contains (or should) functions to get common info 9# @DESCRIPTION:
8# about the toolchain (libc/compiler/binutils/etc...) 10# The toolchain-funcs aims to provide a complete suite of functions
11# for gleaning useful information about the toolchain and to simplify
12# ugly things like cross-compiling and multilib. All of this is done
13# in such a way that you can rely on the function always returning
14# something sane.
9 15
10___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes" 16___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
11[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib 17[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
12 18
13DESCRIPTION="Based on the ${ECLASS} eclass" 19DESCRIPTION="Based on the ${ECLASS} eclass"
28 34
29 export ${var}=${prog} 35 export ${var}=${prog}
30 echo "${!var}" 36 echo "${!var}"
31} 37}
32 38
33# Returns the name of the archiver 39# @FUNCTION: tc-getAR
40# @USAGE: [toolchain prefix]
41# @RETURN: name of the archiver
34tc-getAR() { tc-getPROG AR ar "$@"; } 42tc-getAR() { tc-getPROG AR ar "$@"; }
35# Returns the name of the assembler 43# @FUNCTION: tc-getAS
44# @USAGE: [toolchain prefix]
45# @RETURN: name of the assembler
36tc-getAS() { tc-getPROG AS as "$@"; } 46tc-getAS() { tc-getPROG AS as "$@"; }
47# @FUNCTION: tc-getCC
48# @USAGE: [toolchain prefix]
37# Returns the name of the C compiler 49# @RETURN: name of the C compiler
38tc-getCC() { tc-getPROG CC gcc "$@"; } 50tc-getCC() { tc-getPROG CC gcc "$@"; }
51# @FUNCTION: tc-getCPP
52# @USAGE: [toolchain prefix]
39# Returns the name of the C preprocessor 53# @RETURN: name of the C preprocessor
40tc-getCPP() { tc-getPROG CPP cpp "$@"; } 54tc-getCPP() { tc-getPROG CPP cpp "$@"; }
55# @FUNCTION: tc-getCXX
56# @USAGE: [toolchain prefix]
41# Returns the name of the C++ compiler 57# @RETURN: name of the C++ compiler
42tc-getCXX() { tc-getPROG CXX g++ "$@"; } 58tc-getCXX() { tc-getPROG CXX g++ "$@"; }
43# Returns the name of the linker 59# @FUNCTION: tc-getLD
60# @USAGE: [toolchain prefix]
61# @RETURN: name of the linker
44tc-getLD() { tc-getPROG LD ld "$@"; } 62tc-getLD() { tc-getPROG LD ld "$@"; }
45# Returns the name of the strip prog 63# @FUNCTION: tc-getSTRIP
64# @USAGE: [toolchain prefix]
65# @RETURN: name of the strip program
46tc-getSTRIP() { tc-getPROG STRIP strip "$@"; } 66tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
67# @FUNCTION: tc-getNM
68# @USAGE: [toolchain prefix]
47# Returns the name of the symbol/object thingy 69# @RETURN: name of the symbol/object thingy
48tc-getNM() { tc-getPROG NM nm "$@"; } 70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix]
49# Returns the name of the archiver indexer 73# @RETURN: name of the archiver indexer
50tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75# @FUNCTION: tc-getF77
76# @USAGE: [toolchain prefix]
51# Returns the name of the fortran 77 compiler 77# @RETURN: name of the Fortran 77 compiler
52tc-getF77() { tc-getPROG F77 f77 "$@"; } 78tc-getF77() { tc-getPROG F77 f77 "$@"; }
79# @FUNCTION: tc-getF90
80# @USAGE: [toolchain prefix]
53# Returns the name of the fortran 90 compiler 81# @RETURN: name of the Fortran 90 compiler
54tc-getF90() { tc-getPROG F90 gfortran "$@"; } 82tc-getF90() { tc-getPROG F90 gfortran "$@"; }
83# @FUNCTION: tc-getFORTRAN
84# @USAGE: [toolchain prefix]
55# Returns the name of the fortran compiler 85# @RETURN: name of the Fortran compiler
56tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; } 86tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; }
87# @FUNCTION: tc-getGCJ
88# @USAGE: [toolchain prefix]
57# Returns the name of the java compiler 89# @RETURN: name of the java compiler
58tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
59 91
60# Returns the name of the C compiler for build 92# @FUNCTION: tc-getBUILD_CC
93# @USAGE: [toolchain prefix]
94# @RETURN: name of the C compiler for building binaries to run on the build machine
61tc-getBUILD_CC() { 95tc-getBUILD_CC() {
62 local v 96 local v
63 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do 97 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
64 if [[ -n ${!v} ]] ; then 98 if [[ -n ${!v} ]] ; then
65 export BUILD_CC=${!v} 99 export BUILD_CC=${!v}
77 111
78 export BUILD_CC=${search} 112 export BUILD_CC=${search}
79 echo "${search}" 113 echo "${search}"
80} 114}
81 115
116# @FUNCTION: tc-export
117# @USAGE: <list of toolchain variables>
118# @DESCRIPTION:
82# Quick way to export a bunch of vars at once 119# Quick way to export a bunch of compiler vars at once.
83tc-export() { 120tc-export() {
84 local var 121 local var
85 for var in "$@" ; do 122 for var in "$@" ; do
86 eval tc-get${var} > /dev/null 123 eval tc-get${var} > /dev/null
87 done 124 done
88} 125}
89 126
90# A simple way to see if we're using a cross-compiler ... 127# @FUNCTION: tc-is-cross-compiler
128# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
91tc-is-cross-compiler() { 129tc-is-cross-compiler() {
92 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 130 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
93} 131}
94 132
133# @FUNCTION: tc-is-softfloat
134# @DESCRIPTION:
95# See if this toolchain is a softfloat based one. 135# See if this toolchain is a softfloat based one.
136# @CODE
96# The possible return values: 137# The possible return values:
97# - only: the target is always softfloat (never had fpu) 138# - only: the target is always softfloat (never had fpu)
98# - yes: the target should support softfloat 139# - yes: the target should support softfloat
99# - no: the target should support hardfloat 140# - no: the target should support hardfloat
141# @CODE
100# This allows us to react differently where packages accept 142# This allows us to react differently where packages accept
101# softfloat flags in the case where support is optional, but 143# softfloat flags in the case where support is optional, but
102# rejects softfloat flags where the target always lacks an fpu. 144# rejects softfloat flags where the target always lacks an fpu.
103tc-is-softfloat() { 145tc-is-softfloat() {
104 case ${CTARGET} in 146 case ${CTARGET} in
122 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 164 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
123 165
124 case ${host} in 166 case ${host} in
125 alpha*) echo alpha;; 167 alpha*) echo alpha;;
126 arm*) echo arm;; 168 arm*) echo arm;;
169 avr*) ninj avr32 avr;;
127 bfin*) ninj blackfin bfin;; 170 bfin*) ninj blackfin bfin;;
128 cris*) echo cris;; 171 cris*) echo cris;;
129 hppa*) ninj parisc hppa;; 172 hppa*) ninj parisc hppa;;
130 i?86*) ninj i386 x86;; 173 i?86*)
174 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
175 # trees have been unified into 'x86'.
176 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) ]] ; then
177 echo i386
178 else
179 echo x86
180 fi
181 ;;
131 ia64*) echo ia64;; 182 ia64*) echo ia64;;
132 m68*) echo m68k;; 183 m68*) echo m68k;;
133 mips*) echo mips;; 184 mips*) echo mips;;
134 nios2*) echo nios2;; 185 nios2*) echo nios2;;
135 nios*) echo nios;; 186 nios*) echo nios;;
160 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 211 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
161 && ninj sparc64 sparc \ 212 && ninj sparc64 sparc \
162 || echo sparc 213 || echo sparc
163 ;; 214 ;;
164 vax*) echo vax;; 215 vax*) echo vax;;
165 x86_64*) ninj x86_64 amd64;; 216 x86_64*)
166 *) echo ${ARCH};; 217 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
218 # trees have been unified into 'x86'.
219 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
220 echo x86
221 else
222 ninj x86_64 amd64
223 fi
224 ;;
225
226 # since our usage of tc-arch is largely concerned with
227 # normalizing inputs for testing ${CTARGET}, let's filter
228 # other cross targets (mingw and such) into the unknown.
229 *) echo unknown;;
167 esac 230 esac
168} 231}
232# @FUNCTION: tc-arch-kernel
233# @USAGE: [toolchain prefix]
234# @RETURN: name of the kernel arch according to the compiler target
169tc-arch-kernel() { 235tc-arch-kernel() {
170 tc-ninja_magic_to_arch kern $@ 236 tc-ninja_magic_to_arch kern "$@"
171} 237}
238# @FUNCTION: tc-arch
239# @USAGE: [toolchain prefix]
240# @RETURN: name of the portage arch according to the compiler target
172tc-arch() { 241tc-arch() {
173 tc-ninja_magic_to_arch portage $@ 242 tc-ninja_magic_to_arch portage "$@"
174} 243}
175 244
176# Returns the version as by `$CC -dumpversion` 245tc-endian() {
246 local host=$1
247 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
248 host=${host%%-*}
249
250 case ${host} in
251 alpha*) echo big;;
252 arm*b*) echo big;;
253 arm*) echo little;;
254 cris*) echo little;;
255 hppa*) echo big;;
256 i?86*) echo little;;
257 ia64*) echo little;;
258 m68*) echo big;;
259 mips*l*) echo little;;
260 mips*) echo big;;
261 powerpc*) echo big;;
262 s390*) echo big;;
263 sh*b*) echo big;;
264 sh*) echo little;;
265 sparc*) echo big;;
266 x86_64*) echo little;;
267 *) echo wtf;;
268 esac
269}
270
271# @FUNCTION: gcc-fullversion
272# @RETURN: compiler version (major.minor.micro: [3.4.6])
177gcc-fullversion() { 273gcc-fullversion() {
178 $(tc-getCC "$@") -dumpversion 274 $(tc-getCC "$@") -dumpversion
179} 275}
180# Returns the version, but only the <major>.<minor> 276# @FUNCTION: gcc-version
277# @RETURN: compiler version (major.minor: [3.4].6)
181gcc-version() { 278gcc-version() {
182 gcc-fullversion "$@" | cut -f1,2 -d. 279 gcc-fullversion "$@" | cut -f1,2 -d.
183} 280}
184# Returns the Major version 281# @FUNCTION: gcc-major-version
282# @RETURN: major compiler version (major: [3].4.6)
185gcc-major-version() { 283gcc-major-version() {
186 gcc-version "$@" | cut -f1 -d. 284 gcc-version "$@" | cut -f1 -d.
187} 285}
188# Returns the Minor version 286# @FUNCTION: gcc-minor-version
287# @RETURN: minor compiler version (minor: 3.[4].6)
189gcc-minor-version() { 288gcc-minor-version() {
190 gcc-version "$@" | cut -f2 -d. 289 gcc-version "$@" | cut -f2 -d.
191} 290}
192# Returns the Micro version 291# @FUNCTION: gcc-micro-version
292# @RETURN: micro compiler version (micro: 3.4.[6])
193gcc-micro-version() { 293gcc-micro-version() {
194 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 294 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
195} 295}
296
196# Returns the installation directory - internal toolchain 297# Returns the installation directory - internal toolchain
197# function for use by _gcc-specs-exists (for flag-o-matic). 298# function for use by _gcc-specs-exists (for flag-o-matic).
198_gcc-install-dir() { 299_gcc-install-dir() {
199 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ 300 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
200 awk '$1=="install:" {print $2}')" 301 awk '$1=="install:" {print $2}')"
201} 302}
202# Returns true if the indicated specs file exists - internal toolchain 303# Returns true if the indicated specs file exists - internal toolchain
203# function for use by flag-o-matic. 304# function for use by flag-o-matic.
204_gcc-specs-exists() { 305_gcc-specs-exists() {
276 directive=$(gcc-specs-directive cc1) 377 directive=$(gcc-specs-directive cc1)
277 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 378 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]])
278} 379}
279 380
280 381
382# @FUNCTION: gen_usr_ldscript
383# @USAGE: <list of libs to create linker scripts for>
384# @DESCRIPTION:
281# This function generate linker scripts in /usr/lib for dynamic 385# This function generate linker scripts in /usr/lib for dynamic
282# libs in /lib. This is to fix linking problems when you have 386# libs in /lib. This is to fix linking problems when you have
283# the .so in /lib, and the .a in /usr/lib. What happens is that 387# the .so in /lib, and the .a in /usr/lib. What happens is that
284# in some cases when linking dynamic, the .a in /usr/lib is used 388# in some cases when linking dynamic, the .a in /usr/lib is used
285# instead of the .so in /lib due to gcc/libtool tweaking ld's 389# instead of the .so in /lib due to gcc/libtool tweaking ld's
286# library search path. This cause many builds to fail. 390# library search path. This causes many builds to fail.
287# See bug #4411 for more info. 391# See bug #4411 for more info.
288# 392#
289# To use, simply call:
290#
291# gen_usr_ldscript libfoo.so
292#
293# Note that you should in general use the unversioned name of 393# Note that you should in general use the unversioned name of
294# the library, as ldconfig should usually update it correctly 394# the library (libfoo.so), as ldconfig should usually update it
295# to point to the latest version of the library present. 395# correctly to point to the latest version of the library present.
296gen_usr_ldscript() { 396gen_usr_ldscript() {
297 local lib libdir=$(get_libdir) output_format="" 397 local lib libdir=$(get_libdir) output_format=""
298 # Just make sure it exists 398 # Just make sure it exists
299 dodir /usr/${libdir} 399 dodir /usr/${libdir}
300 400

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