/[gentoo-x86]/eclass/toolchain-funcs.eclass
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1# Copyright 1999-2006 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 1.62 2006/09/24 12:23:22 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.97 2009/12/01 04:44:17 vapier Exp $
4# 4
5# @ECLASS: toolchain-funcs.eclass
6# @MAINTAINER:
5# Author: 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
10inherit multilib 16___ECLASS_RECUR_TOOLCHAIN_FUNCS="yes"
17[[ -z ${___ECLASS_RECUR_MULTILIB} ]] && inherit multilib
11 18
12DESCRIPTION="Based on the ${ECLASS} eclass" 19DESCRIPTION="Based on the ${ECLASS} eclass"
13 20
14tc-getPROG() { 21tc-getPROG() {
15 local var=$1 22 local var=$1
27 34
28 export ${var}=${prog} 35 export ${var}=${prog}
29 echo "${!var}" 36 echo "${!var}"
30} 37}
31 38
32# Returns the name of the archiver 39# @FUNCTION: tc-getAR
40# @USAGE: [toolchain prefix]
41# @RETURN: name of the archiver
33tc-getAR() { tc-getPROG AR ar "$@"; } 42tc-getAR() { tc-getPROG AR ar "$@"; }
34# Returns the name of the assembler 43# @FUNCTION: tc-getAS
44# @USAGE: [toolchain prefix]
45# @RETURN: name of the assembler
35tc-getAS() { tc-getPROG AS as "$@"; } 46tc-getAS() { tc-getPROG AS as "$@"; }
47# @FUNCTION: tc-getCC
48# @USAGE: [toolchain prefix]
36# Returns the name of the C compiler 49# @RETURN: name of the C compiler
37tc-getCC() { tc-getPROG CC gcc "$@"; } 50tc-getCC() { tc-getPROG CC gcc "$@"; }
51# @FUNCTION: tc-getCPP
52# @USAGE: [toolchain prefix]
38# Returns the name of the C preprocessor 53# @RETURN: name of the C preprocessor
39tc-getCPP() { tc-getPROG CPP cpp "$@"; } 54tc-getCPP() { tc-getPROG CPP cpp "$@"; }
55# @FUNCTION: tc-getCXX
56# @USAGE: [toolchain prefix]
40# Returns the name of the C++ compiler 57# @RETURN: name of the C++ compiler
41tc-getCXX() { tc-getPROG CXX g++ "$@"; } 58tc-getCXX() { tc-getPROG CXX g++ "$@"; }
42# Returns the name of the linker 59# @FUNCTION: tc-getLD
60# @USAGE: [toolchain prefix]
61# @RETURN: name of the linker
43tc-getLD() { tc-getPROG LD ld "$@"; } 62tc-getLD() { tc-getPROG LD ld "$@"; }
44# Returns the name of the strip prog 63# @FUNCTION: tc-getSTRIP
64# @USAGE: [toolchain prefix]
65# @RETURN: name of the strip program
45tc-getSTRIP() { tc-getPROG STRIP strip "$@"; } 66tc-getSTRIP() { tc-getPROG STRIP strip "$@"; }
67# @FUNCTION: tc-getNM
68# @USAGE: [toolchain prefix]
46# Returns the name of the symbol/object thingy 69# @RETURN: name of the symbol/object thingy
47tc-getNM() { tc-getPROG NM nm "$@"; } 70tc-getNM() { tc-getPROG NM nm "$@"; }
71# @FUNCTION: tc-getRANLIB
72# @USAGE: [toolchain prefix]
48# Returns the name of the archiver indexer 73# @RETURN: name of the archiver indexer
49tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; } 74tc-getRANLIB() { tc-getPROG RANLIB ranlib "$@"; }
75# @FUNCTION: tc-getOBJCOPY
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the object copier
78tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
79# @FUNCTION: tc-getF77
80# @USAGE: [toolchain prefix]
50# Returns the name of the fortran 77 compiler 81# @RETURN: name of the Fortran 77 compiler
51tc-getF77() { tc-getPROG F77 f77 "$@"; } 82tc-getF77() { tc-getPROG F77 f77 "$@"; }
83# @FUNCTION: tc-getFC
84# @USAGE: [toolchain prefix]
52# Returns the name of the fortran 90 compiler 85# @RETURN: name of the Fortran 90 compiler
53tc-getF90() { tc-getPROG F90 gfortran "$@"; } 86tc-getFC() { tc-getPROG FC gfortran "$@"; }
54# Returns the name of the fortran compiler 87# @FUNCTION: tc-getGCJ
55tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; } 88# @USAGE: [toolchain prefix]
56# Returns the name of the java compiler 89# @RETURN: name of the java compiler
57tc-getGCJ() { tc-getPROG GCJ gcj "$@"; } 90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
91# @FUNCTION: tc-getPKG_CONFIG
92# @USAGE: [toolchain prefix]
93# @RETURN: name of the pkg-config tool
94tc-getPKG_CONFIG() { tc-getPROG PKG_CONFIG pkg-config "$@"; }
58 95
59# Returns the name of the C compiler for build 96# @FUNCTION: tc-getBUILD_CC
97# @USAGE: [toolchain prefix]
98# @RETURN: name of the C compiler for building binaries to run on the build machine
60tc-getBUILD_CC() { 99tc-getBUILD_CC() {
61 local v 100 local v
62 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do 101 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
63 if [[ -n ${!v} ]] ; then 102 if [[ -n ${!v} ]] ; then
64 export BUILD_CC=${!v} 103 export BUILD_CC=${!v}
76 115
77 export BUILD_CC=${search} 116 export BUILD_CC=${search}
78 echo "${search}" 117 echo "${search}"
79} 118}
80 119
120# @FUNCTION: tc-export
121# @USAGE: <list of toolchain variables>
122# @DESCRIPTION:
81# Quick way to export a bunch of vars at once 123# Quick way to export a bunch of compiler vars at once.
82tc-export() { 124tc-export() {
83 local var 125 local var
84 for var in "$@" ; do 126 for var in "$@" ; do
127 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
85 eval tc-get${var} > /dev/null 128 eval tc-get${var} > /dev/null
86 done 129 done
87} 130}
88 131
89# A simple way to see if we're using a cross-compiler ... 132# @FUNCTION: tc-is-cross-compiler
133# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
90tc-is-cross-compiler() { 134tc-is-cross-compiler() {
91 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 135 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
136}
137
138# @FUNCTION: tc-is-softfloat
139# @DESCRIPTION:
140# See if this toolchain is a softfloat based one.
141# @CODE
142# The possible return values:
143# - only: the target is always softfloat (never had fpu)
144# - yes: the target should support softfloat
145# - no: the target should support hardfloat
146# @CODE
147# This allows us to react differently where packages accept
148# softfloat flags in the case where support is optional, but
149# rejects softfloat flags where the target always lacks an fpu.
150tc-is-softfloat() {
151 case ${CTARGET} in
152 bfin*|h8300*)
153 echo "only" ;;
154 *)
155 [[ ${CTARGET//_/-} == *-softfloat-* ]] \
156 && echo "yes" \
157 || echo "no"
158 ;;
159 esac
160}
161
162# @FUNCTION: tc-is-static-only
163# @DESCRIPTION:
164# Return shell true if the target does not support shared libs, shell false
165# otherwise.
166tc-is-static-only() {
167 local host=${CTARGET:-${CHOST}}
168
169 # *MiNT doesn't have shared libraries, only platform so far
170 return $([[ ${host} == *-mint* ]])
171}
172
173# @FUNCTION: tc-has-tls
174# @USAGE: [-s|-c|-l] [toolchain prefix]
175# @DESCRIPTION:
176# See if the toolchain supports thread local storage (TLS). Use -s to test the
177# compiler, -c to also test the assembler, and -l to also test the C library
178# (the default).
179tc-has-tls() {
180 local base="${T}/test-tc-tls"
181 cat <<-EOF > "${base}.c"
182 int foo(int *i) {
183 static __thread int j = 0;
184 return *i ? j : *i;
185 }
186 EOF
187 local flags
188 case $1 in
189 -s) flags="-S";;
190 -c) flags="-c";;
191 -l) ;;
192 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
193 esac
194 : ${flags:=-fPIC -shared -Wl,-z,defs}
195 [[ $1 == -* ]] && shift
196 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
197 local ret=$?
198 rm -f "${base}"*
199 return ${ret}
92} 200}
93 201
94 202
95# Parse information from CBUILD/CHOST/CTARGET rather than 203# Parse information from CBUILD/CHOST/CTARGET rather than
96# use external variables from the profile. 204# use external variables from the profile.
102 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 210 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
103 211
104 case ${host} in 212 case ${host} in
105 alpha*) echo alpha;; 213 alpha*) echo alpha;;
106 arm*) echo arm;; 214 arm*) echo arm;;
215 avr*) ninj avr32 avr;;
107 bfin*) ninj blackfin bfin;; 216 bfin*) ninj blackfin bfin;;
108 cris*) echo cris;; 217 cris*) echo cris;;
109 hppa*) ninj parisc hppa;; 218 hppa*) ninj parisc hppa;;
110 i?86*) ninj i386 x86;; 219 i?86*)
220 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
221 # trees have been unified into 'x86'.
222 # FreeBSD still uses i386
223 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
224 echo i386
225 else
226 echo x86
227 fi
228 ;;
111 ia64*) echo ia64;; 229 ia64*) echo ia64;;
112 m68*) echo m68k;; 230 m68*) echo m68k;;
113 mips*) echo mips;; 231 mips*) echo mips;;
114 nios2*) echo nios2;; 232 nios2*) echo nios2;;
115 nios*) echo nios;; 233 nios*) echo nios;;
140 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 258 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
141 && ninj sparc64 sparc \ 259 && ninj sparc64 sparc \
142 || echo sparc 260 || echo sparc
143 ;; 261 ;;
144 vax*) echo vax;; 262 vax*) echo vax;;
145 x86_64*) ninj x86_64 amd64;; 263 x86_64*)
146 *) echo ${ARCH};; 264 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
265 # trees have been unified into 'x86'.
266 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
267 echo x86
268 else
269 ninj x86_64 amd64
270 fi
271 ;;
272
273 # since our usage of tc-arch is largely concerned with
274 # normalizing inputs for testing ${CTARGET}, let's filter
275 # other cross targets (mingw and such) into the unknown.
276 *) echo unknown;;
147 esac 277 esac
148} 278}
279# @FUNCTION: tc-arch-kernel
280# @USAGE: [toolchain prefix]
281# @RETURN: name of the kernel arch according to the compiler target
149tc-arch-kernel() { 282tc-arch-kernel() {
150 tc-ninja_magic_to_arch kern $@ 283 tc-ninja_magic_to_arch kern "$@"
151} 284}
285# @FUNCTION: tc-arch
286# @USAGE: [toolchain prefix]
287# @RETURN: name of the portage arch according to the compiler target
152tc-arch() { 288tc-arch() {
153 tc-ninja_magic_to_arch portage $@ 289 tc-ninja_magic_to_arch portage "$@"
154} 290}
291
155tc-endian() { 292tc-endian() {
156 local host=$1 293 local host=$1
157 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 294 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
158 host=${host%%-*} 295 host=${host%%-*}
159 296
176 x86_64*) echo little;; 313 x86_64*) echo little;;
177 *) echo wtf;; 314 *) echo wtf;;
178 esac 315 esac
179} 316}
180 317
181# Returns the version as by `$CC -dumpversion` 318# @FUNCTION: gcc-fullversion
319# @RETURN: compiler version (major.minor.micro: [3.4.6])
182gcc-fullversion() { 320gcc-fullversion() {
183 echo "$($(tc-getCC) -dumpversion)" 321 $(tc-getCC "$@") -dumpversion
184} 322}
185# Returns the version, but only the <major>.<minor> 323# @FUNCTION: gcc-version
324# @RETURN: compiler version (major.minor: [3.4].6)
186gcc-version() { 325gcc-version() {
187 echo "$(gcc-fullversion | cut -f1,2 -d.)" 326 gcc-fullversion "$@" | cut -f1,2 -d.
188} 327}
189# Returns the Major version 328# @FUNCTION: gcc-major-version
329# @RETURN: major compiler version (major: [3].4.6)
190gcc-major-version() { 330gcc-major-version() {
191 echo "$(gcc-version | cut -f1 -d.)" 331 gcc-version "$@" | cut -f1 -d.
192} 332}
193# Returns the Minor version 333# @FUNCTION: gcc-minor-version
334# @RETURN: minor compiler version (minor: 3.[4].6)
194gcc-minor-version() { 335gcc-minor-version() {
195 echo "$(gcc-version | cut -f2 -d.)" 336 gcc-version "$@" | cut -f2 -d.
196} 337}
197# Returns the Micro version 338# @FUNCTION: gcc-micro-version
339# @RETURN: micro compiler version (micro: 3.4.[6])
198gcc-micro-version() { 340gcc-micro-version() {
199 echo "$(gcc-fullversion | cut -f3 -d. | cut -f1 -d-)" 341 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
200} 342}
201 343
344# Returns the installation directory - internal toolchain
345# function for use by _gcc-specs-exists (for flag-o-matic).
346_gcc-install-dir() {
347 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
348 awk '$1=="install:" {print $2}')"
349}
350# Returns true if the indicated specs file exists - internal toolchain
351# function for use by flag-o-matic.
352_gcc-specs-exists() {
353 [[ -f $(_gcc-install-dir)/$1 ]]
354}
355
202# Returns requested gcc specs directive 356# Returns requested gcc specs directive unprocessed - for used by
357# gcc-specs-directive()
203# Note; later specs normally overwrite earlier ones; however if a later 358# Note; later specs normally overwrite earlier ones; however if a later
204# spec starts with '+' then it appends. 359# spec starts with '+' then it appends.
205# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v" 360# gcc -dumpspecs is parsed first, followed by files listed by "gcc -v"
206# as "Reading <file>", in order. 361# as "Reading <file>", in order. Strictly speaking, if there's a
362# $(gcc_install_dir)/specs, the built-in specs aren't read, however by
363# the same token anything from 'gcc -dumpspecs' is overridden by
364# the contents of $(gcc_install_dir)/specs so the result is the
365# same either way.
207gcc-specs-directive() { 366_gcc-specs-directive_raw() {
208 local cc=$(tc-getCC) 367 local cc=$(tc-getCC)
209 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}') 368 local specfiles=$(LC_ALL=C ${cc} -v 2>&1 | awk '$1=="Reading" {print $NF}')
210 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \ 369 ${cc} -dumpspecs 2> /dev/null | cat - ${specfiles} | awk -v directive=$1 \
211'BEGIN { pspec=""; spec=""; outside=1 } 370'BEGIN { pspec=""; spec=""; outside=1 }
212$1=="*"directive":" { pspec=spec; spec=""; outside=0; next } 371$1=="*"directive":" { pspec=spec; spec=""; outside=0; next }
215 { spec=spec $0 } 374 { spec=spec $0 }
216END { print spec }' 375END { print spec }'
217 return 0 376 return 0
218} 377}
219 378
379# Return the requested gcc specs directive, with all included
380# specs expanded.
381# Note, it does not check for inclusion loops, which cause it
382# to never finish - but such loops are invalid for gcc and we're
383# assuming gcc is operational.
384gcc-specs-directive() {
385 local directive subdname subdirective
386 directive="$(_gcc-specs-directive_raw $1)"
387 while [[ ${directive} == *%\(*\)* ]]; do
388 subdname=${directive/*%\(}
389 subdname=${subdname/\)*}
390 subdirective="$(_gcc-specs-directive_raw ${subdname})"
391 directive="${directive//\%(${subdname})/${subdirective}}"
392 done
393 echo "${directive}"
394 return 0
395}
396
220# Returns true if gcc sets relro 397# Returns true if gcc sets relro
221gcc-specs-relro() { 398gcc-specs-relro() {
222 local directive 399 local directive
223 directive=$(gcc-specs-directive link_command) 400 directive=$(gcc-specs-directive link_command)
224 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 401 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
225} 402}
226# Returns true if gcc sets now 403# Returns true if gcc sets now
227gcc-specs-now() { 404gcc-specs-now() {
228 local directive 405 local directive
229 directive=$(gcc-specs-directive link_command) 406 directive=$(gcc-specs-directive link_command)
230 return $([[ ${directive/\{!nonow:} != ${directive} ]]) 407 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
231} 408}
232# Returns true if gcc builds PIEs 409# Returns true if gcc builds PIEs
233gcc-specs-pie() { 410gcc-specs-pie() {
234 local directive 411 local directive
235 directive=$(gcc-specs-directive cc1) 412 directive=$(gcc-specs-directive cc1)
236 return $([[ ${directive/\{!nopie:} != ${directive} ]]) 413 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
237} 414}
238# Returns true if gcc builds with the stack protector 415# Returns true if gcc builds with the stack protector
239gcc-specs-ssp() { 416gcc-specs-ssp() {
240 local directive 417 local directive
241 directive=$(gcc-specs-directive cc1) 418 directive=$(gcc-specs-directive cc1)
242 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 419 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
243} 420}
244# Returns true if gcc upgrades fstack-protector to fstack-protector-all 421# Returns true if gcc upgrades fstack-protector to fstack-protector-all
245gcc-specs-ssp-to-all() { 422gcc-specs-ssp-to-all() {
246 local directive 423 local directive
247 directive=$(gcc-specs-directive cc1) 424 directive=$(gcc-specs-directive cc1)
248 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 425 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
249} 426}
427# Returns true if gcc builds with fno-strict-overflow
428gcc-specs-nostrict() {
429 local directive
430 directive=$(gcc-specs-directive cc1)
431 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
432}
250 433
251 434
435# @FUNCTION: gen_usr_ldscript
436# @USAGE: [-a] <list of libs to create linker scripts for>
437# @DESCRIPTION:
252# This function generate linker scripts in /usr/lib for dynamic 438# This function generate linker scripts in /usr/lib for dynamic
253# libs in /lib. This is to fix linking problems when you have 439# libs in /lib. This is to fix linking problems when you have
254# the .so in /lib, and the .a in /usr/lib. What happens is that 440# the .so in /lib, and the .a in /usr/lib. What happens is that
255# in some cases when linking dynamic, the .a in /usr/lib is used 441# in some cases when linking dynamic, the .a in /usr/lib is used
256# instead of the .so in /lib due to gcc/libtool tweaking ld's 442# instead of the .so in /lib due to gcc/libtool tweaking ld's
257# library search path. This cause many builds to fail. 443# library search path. This causes many builds to fail.
258# See bug #4411 for more info. 444# See bug #4411 for more info.
259# 445#
260# To use, simply call:
261#
262# gen_usr_ldscript libfoo.so
263#
264# Note that you should in general use the unversioned name of 446# Note that you should in general use the unversioned name of
265# the library, as ldconfig should usually update it correctly 447# the library (libfoo.so), as ldconfig should usually update it
266# to point to the latest version of the library present. 448# correctly to point to the latest version of the library present.
267_tc_gen_usr_ldscript() { 449gen_usr_ldscript() {
268 local lib libdir=$(get_libdir) output_format="" 450 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
451 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
452
453 tc-is-static-only && return
454
269 # Just make sure it exists 455 # Just make sure it exists
270 dodir /usr/${libdir} 456 dodir /usr/${libdir}
457
458 if [[ $1 == "-a" ]] ; then
459 auto=true
460 shift
461 dodir /${libdir}
462 fi
271 463
272 # OUTPUT_FORMAT gives hints to the linker as to what binary format 464 # OUTPUT_FORMAT gives hints to the linker as to what binary format
273 # is referenced ... makes multilib saner 465 # is referenced ... makes multilib saner
274 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 466 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
275 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 467 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
276 468
277 for lib in "$@" ; do 469 for lib in "$@" ; do
278 if [[ ${USERLAND} == "Darwin" ]] ; then 470 local tlib
279 ewarn "Not creating fake dynamic library for $lib on Darwin;" 471 if ${auto} ; then
280 ewarn "making a symlink instead." 472 lib="lib${lib}${suffix}"
281 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
282 else 473 else
474 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
475 # This especially is for AIX where $(get_libname) can return ".a",
476 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
477 [[ -r ${ED}/${libdir}/${lib} ]] || continue
478 #TODO: better die here?
479 fi
480
481 case ${CTARGET:-${CHOST}} in
482 *-darwin*)
483 if ${auto} ; then
484 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
485 else
486 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
487 fi
488 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
489 tlib=${tlib##*/}
490
491 if ${auto} ; then
492 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
493 # some install_names are funky: they encode a version
494 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
495 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
496 fi
497 rm -f "${ED}"/${libdir}/${lib}
498 fi
499
500 # Mach-O files have an id, which is like a soname, it tells how
501 # another object linking against this lib should reference it.
502 # Since we moved the lib from usr/lib into lib this reference is
503 # wrong. Hence, we update it here. We don't configure with
504 # libdir=/lib because that messes up libtool files.
505 # Make sure we don't lose the specific version, so just modify the
506 # existing install_name
507 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
508 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
509 local nowrite=yes
510 fi
511 install_name_tool \
512 -id "${EPREFIX}"/${libdir}/${tlib} \
513 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
514 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
515 # Now as we don't use GNU binutils and our linker doesn't
516 # understand linker scripts, just create a symlink.
517 pushd "${ED}/usr/${libdir}" > /dev/null
518 ln -snf "../../${libdir}/${tlib}" "${lib}"
519 popd > /dev/null
520 ;;
521 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
522 if ${auto} ; then
523 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
524 # no way to retrieve soname on these platforms (?)
525 tlib=$(readlink "${ED}"/${libdir}/${lib})
526 tlib=${tlib##*/}
527 if [[ -z ${tlib} ]] ; then
528 # ok, apparently was not a symlink, don't remove it and
529 # just link to it
530 tlib=${lib}
531 else
532 rm -f "${ED}"/${libdir}/${lib}
533 fi
534 else
535 tlib=${lib}
536 fi
537
538 # we don't have GNU binutils on these platforms, so we symlink
539 # instead, which seems to work fine. Keep it relative, otherwise
540 # we break some QA checks in Portage
541 # on interix, the linker scripts would work fine in _most_
542 # situations. if a library links to such a linker script the
543 # absolute path to the correct library is inserted into the binary,
544 # which is wrong, since anybody linking _without_ libtool will miss
545 # some dependencies, since the stupid linker cannot find libraries
546 # hardcoded with absolute paths (as opposed to the loader, which
547 # seems to be able to do this).
548 # this has been seen while building shared-mime-info which needs
549 # libxml2, but links without libtool (and does not add libz to the
550 # command line by itself).
551 pushd "${ED}/usr/${libdir}" > /dev/null
552 ln -snf "../../${libdir}/${tlib}" "${lib}"
553 popd > /dev/null
554 ;;
555 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
556 if ${auto} ; then
557 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
558 [[ -z ${tlib} ]] && tlib=${lib}
559 tlib=${tlib##*/} # 'internal name' can have a path component
560 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
561 # some SONAMEs are funky: they encode a version before the .so
562 if [[ ${tlib} != ${lib}* ]] ; then
563 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
564 fi
565 [[ ${tlib} != ${lib} ]] &&
566 rm -f "${ED}"/${libdir}/${lib}
567 else
568 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
569 [[ -z ${tlib} ]] && tlib=${lib}
570 tlib=${tlib##*/} # 'internal name' can have a path component
571 fi
572 pushd "${ED}"/usr/${libdir} >/dev/null
573 ln -snf "../../${libdir}/${tlib}" "${lib}"
574 # need the internal name in usr/lib too, to be available at runtime
575 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
576 [[ ${tlib} != ${lib} ]] &&
577 ln -snf "../../${libdir}/${tlib}" "${tlib}"
578 popd >/dev/null
579 ;;
580 *)
581 if ${auto} ; then
582 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
583 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
584 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
585 # some SONAMEs are funky: they encode a version before the .so
586 if [[ ${tlib} != ${lib}* ]] ; then
587 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
588 fi
589 rm -f "${ED}"/${libdir}/${lib}
590 else
591 tlib=${lib}
592 fi
283 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 593 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
284 /* GNU ld script 594 /* GNU ld script
285 Since Gentoo has critical dynamic libraries 595 Since Gentoo has critical dynamic libraries in /lib, and the static versions
286 in /lib, and the static versions in /usr/lib, 596 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
287 we need to have a "fake" dynamic lib in /usr/lib, 597 run into linking problems. This "fake" dynamic lib is a linker script that
288 otherwise we run into linking problems. 598 redirects the linker to the real lib. And yes, this works in the cross-
599 compiling scenario as the sysroot-ed linker will prepend the real path.
289 600
290 See bug http://bugs.gentoo.org/4411 for more info. 601 See bug http://bugs.gentoo.org/4411 for more info.
291 */ 602 */
292 ${output_format} 603 ${output_format}
293 GROUP ( /${libdir}/${lib} ) 604 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
294 END_LDSCRIPT 605 END_LDSCRIPT
295 fi 606 ;;
607 esac
296 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 608 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
297 done 609 done
298} 610}
299gen_usr_ldscript() { _tc_gen_usr_ldscript "$@" ; }

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