/[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 1.73 2007/07/22 19:59:48 vapier Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/toolchain-funcs.eclass,v 1.99 2010/04/22 18:28:11 armin76 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-getOBJCOPY
76# @USAGE: [toolchain prefix]
77# @RETURN: name of the object copier
78tc-getOBJCOPY() { tc-getPROG OBJCOPY objcopy "$@"; }
79# @FUNCTION: tc-getF77
80# @USAGE: [toolchain prefix]
51# Returns the name of the fortran 77 compiler 81# @RETURN: name of the Fortran 77 compiler
52tc-getF77() { tc-getPROG F77 f77 "$@"; } 82tc-getF77() { tc-getPROG F77 f77 "$@"; }
83# @FUNCTION: tc-getFC
84# @USAGE: [toolchain prefix]
53# Returns the name of the fortran 90 compiler 85# @RETURN: name of the Fortran 90 compiler
54tc-getF90() { tc-getPROG F90 gfortran "$@"; } 86tc-getFC() { tc-getPROG FC gfortran "$@"; }
55# Returns the name of the fortran compiler 87# @FUNCTION: tc-getGCJ
56tc-getFORTRAN() { tc-getPROG FORTRAN gfortran "$@"; } 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 "$@"; } 90tc-getGCJ() { tc-getPROG GCJ gcj "$@"; }
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 "$@"; }
95# @FUNCTION: tc-getRC
96# @USAGE: [toolchain prefix]
97# @RETURN: name of the Windows resource compiler
98tc-getRC() { tc-getPROG RC windres "$@"; }
99# @FUNCTION: tc-getDLLWRAP
100# @USAGE: [toolchain prefix]
101# @RETURN: name of the Windows dllwrap utility
102tc-getDLLWRAP() { tc-getPROG DLLWRAP dllwrap "$@"; }
59 103
60# Returns the name of the C compiler for build 104# @FUNCTION: tc-getBUILD_CC
105# @USAGE: [toolchain prefix]
106# @RETURN: name of the C compiler for building binaries to run on the build machine
61tc-getBUILD_CC() { 107tc-getBUILD_CC() {
62 local v 108 local v
63 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do 109 for v in CC_FOR_BUILD BUILD_CC HOSTCC ; do
64 if [[ -n ${!v} ]] ; then 110 if [[ -n ${!v} ]] ; then
65 export BUILD_CC=${!v} 111 export BUILD_CC=${!v}
77 123
78 export BUILD_CC=${search} 124 export BUILD_CC=${search}
79 echo "${search}" 125 echo "${search}"
80} 126}
81 127
128# @FUNCTION: tc-export
129# @USAGE: <list of toolchain variables>
130# @DESCRIPTION:
82# Quick way to export a bunch of vars at once 131# Quick way to export a bunch of compiler vars at once.
83tc-export() { 132tc-export() {
84 local var 133 local var
85 for var in "$@" ; do 134 for var in "$@" ; do
135 [[ $(type -t tc-get${var}) != "function" ]] && die "tc-export: invalid export variable '${var}'"
86 eval tc-get${var} > /dev/null 136 eval tc-get${var} > /dev/null
87 done 137 done
88} 138}
89 139
90# A simple way to see if we're using a cross-compiler ... 140# @FUNCTION: tc-is-cross-compiler
141# @RETURN: Shell true if we are using a cross-compiler, shell false otherwise
91tc-is-cross-compiler() { 142tc-is-cross-compiler() {
92 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]]) 143 return $([[ ${CBUILD:-${CHOST}} != ${CHOST} ]])
93} 144}
94 145
146# @FUNCTION: tc-is-softfloat
147# @DESCRIPTION:
95# See if this toolchain is a softfloat based one. 148# See if this toolchain is a softfloat based one.
149# @CODE
96# The possible return values: 150# The possible return values:
97# - only: the target is always softfloat (never had fpu) 151# - only: the target is always softfloat (never had fpu)
98# - yes: the target should support softfloat 152# - yes: the target should support softfloat
99# - no: the target should support hardfloat 153# - no: the target doesn't support softfloat
154# @CODE
100# This allows us to react differently where packages accept 155# This allows us to react differently where packages accept
101# softfloat flags in the case where support is optional, but 156# softfloat flags in the case where support is optional, but
102# rejects softfloat flags where the target always lacks an fpu. 157# rejects softfloat flags where the target always lacks an fpu.
103tc-is-softfloat() { 158tc-is-softfloat() {
104 case ${CTARGET} in 159 case ${CTARGET} in
110 || echo "no" 165 || echo "no"
111 ;; 166 ;;
112 esac 167 esac
113} 168}
114 169
170# @FUNCTION: tc-is-hardfloat
171# @DESCRIPTION:
172# See if this toolchain is a hardfloat based one.
173# @CODE
174# The possible return values:
175# - yes: the target should support hardfloat
176# - no: the target doesn't support hardfloat
177tc-is-hardfloat() {
178 [[ ${CTARGET//_/-} == *-hardfloat-* ]] \
179 && echo "yes" \
180 || echo "no"
181}
182
183# @FUNCTION: tc-is-static-only
184# @DESCRIPTION:
185# Return shell true if the target does not support shared libs, shell false
186# otherwise.
187tc-is-static-only() {
188 local host=${CTARGET:-${CHOST}}
189
190 # *MiNT doesn't have shared libraries, only platform so far
191 return $([[ ${host} == *-mint* ]])
192}
193
194# @FUNCTION: tc-has-tls
195# @USAGE: [-s|-c|-l] [toolchain prefix]
196# @DESCRIPTION:
197# See if the toolchain supports thread local storage (TLS). Use -s to test the
198# compiler, -c to also test the assembler, and -l to also test the C library
199# (the default).
200tc-has-tls() {
201 local base="${T}/test-tc-tls"
202 cat <<-EOF > "${base}.c"
203 int foo(int *i) {
204 static __thread int j = 0;
205 return *i ? j : *i;
206 }
207 EOF
208 local flags
209 case $1 in
210 -s) flags="-S";;
211 -c) flags="-c";;
212 -l) ;;
213 -*) die "Usage: tc-has-tls [-c|-l] [toolchain prefix]";;
214 esac
215 : ${flags:=-fPIC -shared -Wl,-z,defs}
216 [[ $1 == -* ]] && shift
217 $(tc-getCC "$@") ${flags} "${base}.c" -o "${base}" >&/dev/null
218 local ret=$?
219 rm -f "${base}"*
220 return ${ret}
221}
222
223
115# Parse information from CBUILD/CHOST/CTARGET rather than 224# Parse information from CBUILD/CHOST/CTARGET rather than
116# use external variables from the profile. 225# use external variables from the profile.
117tc-ninja_magic_to_arch() { 226tc-ninja_magic_to_arch() {
118ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; } 227ninj() { [[ ${type} == "kern" ]] && echo $1 || echo $2 ; }
119 228
126 arm*) echo arm;; 235 arm*) echo arm;;
127 avr*) ninj avr32 avr;; 236 avr*) ninj avr32 avr;;
128 bfin*) ninj blackfin bfin;; 237 bfin*) ninj blackfin bfin;;
129 cris*) echo cris;; 238 cris*) echo cris;;
130 hppa*) ninj parisc hppa;; 239 hppa*) ninj parisc hppa;;
131 i?86*) ninj i386 x86;; 240 i?86*)
241 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
242 # trees have been unified into 'x86'.
243 # FreeBSD still uses i386
244 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -lt $(KV_to_int 2.6.24) || ${host} == *freebsd* ]] ; then
245 echo i386
246 else
247 echo x86
248 fi
249 ;;
132 ia64*) echo ia64;; 250 ia64*) echo ia64;;
133 m68*) echo m68k;; 251 m68*) echo m68k;;
134 mips*) echo mips;; 252 mips*) echo mips;;
135 nios2*) echo nios2;; 253 nios2*) echo nios2;;
136 nios*) echo nios;; 254 nios*) echo nios;;
161 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \ 279 sparc*) [[ ${PROFILE_ARCH} == "sparc64" ]] \
162 && ninj sparc64 sparc \ 280 && ninj sparc64 sparc \
163 || echo sparc 281 || echo sparc
164 ;; 282 ;;
165 vax*) echo vax;; 283 vax*) echo vax;;
166 x86_64*) ninj x86_64 amd64;; 284 x86_64*)
285 # Starting with linux-2.6.24, the 'x86_64' and 'i386'
286 # trees have been unified into 'x86'.
287 if [[ ${type} == "kern" ]] && [[ $(KV_to_int ${KV}) -ge $(KV_to_int 2.6.24) ]] ; then
288 echo x86
289 else
290 ninj x86_64 amd64
291 fi
292 ;;
167 293
168 # since our usage of tc-arch is largely concerned with 294 # since our usage of tc-arch is largely concerned with
169 # normalizing inputs for testing ${CTARGET}, let's filter 295 # normalizing inputs for testing ${CTARGET}, let's filter
170 # other cross targets (mingw and such) into the unknown. 296 # other cross targets (mingw and such) into the unknown.
171 *) echo unknown;; 297 *) echo unknown;;
172 esac 298 esac
173} 299}
300# @FUNCTION: tc-arch-kernel
301# @USAGE: [toolchain prefix]
302# @RETURN: name of the kernel arch according to the compiler target
174tc-arch-kernel() { 303tc-arch-kernel() {
175 tc-ninja_magic_to_arch kern $@ 304 tc-ninja_magic_to_arch kern "$@"
176} 305}
306# @FUNCTION: tc-arch
307# @USAGE: [toolchain prefix]
308# @RETURN: name of the portage arch according to the compiler target
177tc-arch() { 309tc-arch() {
178 tc-ninja_magic_to_arch portage $@ 310 tc-ninja_magic_to_arch portage "$@"
179} 311}
312
180tc-endian() { 313tc-endian() {
181 local host=$1 314 local host=$1
182 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}} 315 [[ -z ${host} ]] && host=${CTARGET:-${CHOST}}
183 host=${host%%-*} 316 host=${host%%-*}
184 317
201 x86_64*) echo little;; 334 x86_64*) echo little;;
202 *) echo wtf;; 335 *) echo wtf;;
203 esac 336 esac
204} 337}
205 338
206# Returns the version as by `$CC -dumpversion` 339# @FUNCTION: gcc-fullversion
340# @RETURN: compiler version (major.minor.micro: [3.4.6])
207gcc-fullversion() { 341gcc-fullversion() {
208 $(tc-getCC "$@") -dumpversion 342 $(tc-getCC "$@") -dumpversion
209} 343}
210# Returns the version, but only the <major>.<minor> 344# @FUNCTION: gcc-version
345# @RETURN: compiler version (major.minor: [3.4].6)
211gcc-version() { 346gcc-version() {
212 gcc-fullversion "$@" | cut -f1,2 -d. 347 gcc-fullversion "$@" | cut -f1,2 -d.
213} 348}
214# Returns the Major version 349# @FUNCTION: gcc-major-version
350# @RETURN: major compiler version (major: [3].4.6)
215gcc-major-version() { 351gcc-major-version() {
216 gcc-version "$@" | cut -f1 -d. 352 gcc-version "$@" | cut -f1 -d.
217} 353}
218# Returns the Minor version 354# @FUNCTION: gcc-minor-version
355# @RETURN: minor compiler version (minor: 3.[4].6)
219gcc-minor-version() { 356gcc-minor-version() {
220 gcc-version "$@" | cut -f2 -d. 357 gcc-version "$@" | cut -f2 -d.
221} 358}
222# Returns the Micro version 359# @FUNCTION: gcc-micro-version
360# @RETURN: micro compiler version (micro: 3.4.[6])
223gcc-micro-version() { 361gcc-micro-version() {
224 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d- 362 gcc-fullversion "$@" | cut -f3 -d. | cut -f1 -d-
225} 363}
364
226# Returns the installation directory - internal toolchain 365# Returns the installation directory - internal toolchain
227# function for use by _gcc-specs-exists (for flag-o-matic). 366# function for use by _gcc-specs-exists (for flag-o-matic).
228_gcc-install-dir() { 367_gcc-install-dir() {
229 echo "$($(tc-getCC) -print-search-dirs 2> /dev/null |\ 368 echo "$(LC_ALL=C $(tc-getCC) -print-search-dirs 2> /dev/null |\
230 awk '$1=="install:" {print $2}')" 369 awk '$1=="install:" {print $2}')"
231} 370}
232# Returns true if the indicated specs file exists - internal toolchain 371# Returns true if the indicated specs file exists - internal toolchain
233# function for use by flag-o-matic. 372# function for use by flag-o-matic.
234_gcc-specs-exists() { 373_gcc-specs-exists() {
278 417
279# Returns true if gcc sets relro 418# Returns true if gcc sets relro
280gcc-specs-relro() { 419gcc-specs-relro() {
281 local directive 420 local directive
282 directive=$(gcc-specs-directive link_command) 421 directive=$(gcc-specs-directive link_command)
283 return $([[ ${directive/\{!norelro:} != ${directive} ]]) 422 return $([[ "${directive/\{!norelro:}" != "${directive}" ]])
284} 423}
285# Returns true if gcc sets now 424# Returns true if gcc sets now
286gcc-specs-now() { 425gcc-specs-now() {
287 local directive 426 local directive
288 directive=$(gcc-specs-directive link_command) 427 directive=$(gcc-specs-directive link_command)
289 return $([[ ${directive/\{!nonow:} != ${directive} ]]) 428 return $([[ "${directive/\{!nonow:}" != "${directive}" ]])
290} 429}
291# Returns true if gcc builds PIEs 430# Returns true if gcc builds PIEs
292gcc-specs-pie() { 431gcc-specs-pie() {
293 local directive 432 local directive
294 directive=$(gcc-specs-directive cc1) 433 directive=$(gcc-specs-directive cc1)
295 return $([[ ${directive/\{!nopie:} != ${directive} ]]) 434 return $([[ "${directive/\{!nopie:}" != "${directive}" ]])
296} 435}
297# Returns true if gcc builds with the stack protector 436# Returns true if gcc builds with the stack protector
298gcc-specs-ssp() { 437gcc-specs-ssp() {
299 local directive 438 local directive
300 directive=$(gcc-specs-directive cc1) 439 directive=$(gcc-specs-directive cc1)
301 return $([[ ${directive/\{!fno-stack-protector:} != ${directive} ]]) 440 return $([[ "${directive/\{!fno-stack-protector:}" != "${directive}" ]])
302} 441}
303# Returns true if gcc upgrades fstack-protector to fstack-protector-all 442# Returns true if gcc upgrades fstack-protector to fstack-protector-all
304gcc-specs-ssp-to-all() { 443gcc-specs-ssp-to-all() {
305 local directive 444 local directive
306 directive=$(gcc-specs-directive cc1) 445 directive=$(gcc-specs-directive cc1)
307 return $([[ ${directive/\{!fno-stack-protector-all:} != ${directive} ]]) 446 return $([[ "${directive/\{!fno-stack-protector-all:}" != "${directive}" ]])
308} 447}
448# Returns true if gcc builds with fno-strict-overflow
449gcc-specs-nostrict() {
450 local directive
451 directive=$(gcc-specs-directive cc1)
452 return $([[ "${directive/\{!fstrict-overflow:}" != "${directive}" ]])
453}
309 454
310 455
456# @FUNCTION: gen_usr_ldscript
457# @USAGE: [-a] <list of libs to create linker scripts for>
458# @DESCRIPTION:
311# This function generate linker scripts in /usr/lib for dynamic 459# This function generate linker scripts in /usr/lib for dynamic
312# libs in /lib. This is to fix linking problems when you have 460# libs in /lib. This is to fix linking problems when you have
313# the .so in /lib, and the .a in /usr/lib. What happens is that 461# the .so in /lib, and the .a in /usr/lib. What happens is that
314# in some cases when linking dynamic, the .a in /usr/lib is used 462# in some cases when linking dynamic, the .a in /usr/lib is used
315# instead of the .so in /lib due to gcc/libtool tweaking ld's 463# instead of the .so in /lib due to gcc/libtool tweaking ld's
316# library search path. This cause many builds to fail. 464# library search path. This causes many builds to fail.
317# See bug #4411 for more info. 465# See bug #4411 for more info.
318# 466#
319# To use, simply call:
320#
321# gen_usr_ldscript libfoo.so
322#
323# Note that you should in general use the unversioned name of 467# Note that you should in general use the unversioned name of
324# the library, as ldconfig should usually update it correctly 468# the library (libfoo.so), as ldconfig should usually update it
325# to point to the latest version of the library present. 469# correctly to point to the latest version of the library present.
326gen_usr_ldscript() { 470gen_usr_ldscript() {
327 local lib libdir=$(get_libdir) output_format="" 471 local lib libdir=$(get_libdir) output_format="" auto=false suffix=$(get_libname)
472 [[ -z ${ED+set} ]] && local ED=${D%/}${EPREFIX}/
473
474 tc-is-static-only && return
475
328 # Just make sure it exists 476 # Just make sure it exists
329 dodir /usr/${libdir} 477 dodir /usr/${libdir}
478
479 if [[ $1 == "-a" ]] ; then
480 auto=true
481 shift
482 dodir /${libdir}
483 fi
330 484
331 # OUTPUT_FORMAT gives hints to the linker as to what binary format 485 # OUTPUT_FORMAT gives hints to the linker as to what binary format
332 # is referenced ... makes multilib saner 486 # is referenced ... makes multilib saner
333 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') 487 output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
334 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" 488 [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
335 489
336 for lib in "$@" ; do 490 for lib in "$@" ; do
337 if [[ ${USERLAND} == "Darwin" ]] ; then 491 local tlib
338 ewarn "Not creating fake dynamic library for $lib on Darwin;" 492 if ${auto} ; then
339 ewarn "making a symlink instead." 493 lib="lib${lib}${suffix}"
340 dosym "/${libdir}/${lib}" "/usr/${libdir}/${lib}"
341 else 494 else
495 # Ensure /lib/${lib} exists to avoid dangling scripts/symlinks.
496 # This especially is for AIX where $(get_libname) can return ".a",
497 # so /lib/${lib} might be moved to /usr/lib/${lib} (by accident).
498 [[ -r ${ED}/${libdir}/${lib} ]] || continue
499 #TODO: better die here?
500 fi
501
502 case ${CTARGET:-${CHOST}} in
503 *-darwin*)
504 if ${auto} ; then
505 tlib=$(scanmacho -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
506 else
507 tlib=$(scanmacho -qF'%S#F' "${ED}"/${libdir}/${lib})
508 fi
509 [[ -z ${tlib} ]] && die "unable to read install_name from ${lib}"
510 tlib=${tlib##*/}
511
512 if ${auto} ; then
513 mv "${ED}"/usr/${libdir}/${lib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
514 # some install_names are funky: they encode a version
515 if [[ ${tlib} != ${lib%${suffix}}.*${suffix#.} ]] ; then
516 mv "${ED}"/usr/${libdir}/${tlib%${suffix}}.*${suffix#.} "${ED}"/${libdir}/ || die
517 fi
518 rm -f "${ED}"/${libdir}/${lib}
519 fi
520
521 # Mach-O files have an id, which is like a soname, it tells how
522 # another object linking against this lib should reference it.
523 # Since we moved the lib from usr/lib into lib this reference is
524 # wrong. Hence, we update it here. We don't configure with
525 # libdir=/lib because that messes up libtool files.
526 # Make sure we don't lose the specific version, so just modify the
527 # existing install_name
528 if [[ ! -w "${ED}/${libdir}/${tlib}" ]] ; then
529 chmod u+w "${ED}${libdir}/${tlib}" # needed to write to it
530 local nowrite=yes
531 fi
532 install_name_tool \
533 -id "${EPREFIX}"/${libdir}/${tlib} \
534 "${ED}"/${libdir}/${tlib} || die "install_name_tool failed"
535 [[ -n ${nowrite} ]] && chmod u-w "${ED}${libdir}/${tlib}"
536 # Now as we don't use GNU binutils and our linker doesn't
537 # understand linker scripts, just create a symlink.
538 pushd "${ED}/usr/${libdir}" > /dev/null
539 ln -snf "../../${libdir}/${tlib}" "${lib}"
540 popd > /dev/null
541 ;;
542 *-aix*|*-irix*|*64*-hpux*|*-interix*|*-winnt*)
543 if ${auto} ; then
544 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
545 # no way to retrieve soname on these platforms (?)
546 tlib=$(readlink "${ED}"/${libdir}/${lib})
547 tlib=${tlib##*/}
548 if [[ -z ${tlib} ]] ; then
549 # ok, apparently was not a symlink, don't remove it and
550 # just link to it
551 tlib=${lib}
552 else
553 rm -f "${ED}"/${libdir}/${lib}
554 fi
555 else
556 tlib=${lib}
557 fi
558
559 # we don't have GNU binutils on these platforms, so we symlink
560 # instead, which seems to work fine. Keep it relative, otherwise
561 # we break some QA checks in Portage
562 # on interix, the linker scripts would work fine in _most_
563 # situations. if a library links to such a linker script the
564 # absolute path to the correct library is inserted into the binary,
565 # which is wrong, since anybody linking _without_ libtool will miss
566 # some dependencies, since the stupid linker cannot find libraries
567 # hardcoded with absolute paths (as opposed to the loader, which
568 # seems to be able to do this).
569 # this has been seen while building shared-mime-info which needs
570 # libxml2, but links without libtool (and does not add libz to the
571 # command line by itself).
572 pushd "${ED}/usr/${libdir}" > /dev/null
573 ln -snf "../../${libdir}/${tlib}" "${lib}"
574 popd > /dev/null
575 ;;
576 hppa*-hpux*) # PA-RISC 32bit (SOM) only, others (ELF) match *64*-hpux* above.
577 if ${auto} ; then
578 tlib=$(chatr "${ED}"/usr/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
579 [[ -z ${tlib} ]] && tlib=${lib}
580 tlib=${tlib##*/} # 'internal name' can have a path component
581 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
582 # some SONAMEs are funky: they encode a version before the .so
583 if [[ ${tlib} != ${lib}* ]] ; then
584 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
585 fi
586 [[ ${tlib} != ${lib} ]] &&
587 rm -f "${ED}"/${libdir}/${lib}
588 else
589 tlib=$(chatr "${ED}"/${libdir}/${lib} | sed -n '/internal name:/{n;s/^ *//;p;q}')
590 [[ -z ${tlib} ]] && tlib=${lib}
591 tlib=${tlib##*/} # 'internal name' can have a path component
592 fi
593 pushd "${ED}"/usr/${libdir} >/dev/null
594 ln -snf "../../${libdir}/${tlib}" "${lib}"
595 # need the internal name in usr/lib too, to be available at runtime
596 # when linked with /path/to/lib.sl (hardcode_direct_absolute=yes)
597 [[ ${tlib} != ${lib} ]] &&
598 ln -snf "../../${libdir}/${tlib}" "${tlib}"
599 popd >/dev/null
600 ;;
601 *)
602 if ${auto} ; then
603 tlib=$(scanelf -qF'%S#F' "${ED}"/usr/${libdir}/${lib})
604 [[ -z ${tlib} ]] && die "unable to read SONAME from ${lib}"
605 mv "${ED}"/usr/${libdir}/${lib}* "${ED}"/${libdir}/ || die
606 # some SONAMEs are funky: they encode a version before the .so
607 if [[ ${tlib} != ${lib}* ]] ; then
608 mv "${ED}"/usr/${libdir}/${tlib}* "${ED}"/${libdir}/ || die
609 fi
610 rm -f "${ED}"/${libdir}/${lib}
611 else
612 tlib=${lib}
613 fi
342 cat > "${D}/usr/${libdir}/${lib}" <<-END_LDSCRIPT 614 cat > "${ED}/usr/${libdir}/${lib}" <<-END_LDSCRIPT
343 /* GNU ld script 615 /* GNU ld script
344 Since Gentoo has critical dynamic libraries 616 Since Gentoo has critical dynamic libraries in /lib, and the static versions
345 in /lib, and the static versions in /usr/lib, 617 in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
346 we need to have a "fake" dynamic lib in /usr/lib, 618 run into linking problems. This "fake" dynamic lib is a linker script that
347 otherwise we run into linking problems. 619 redirects the linker to the real lib. And yes, this works in the cross-
620 compiling scenario as the sysroot-ed linker will prepend the real path.
348 621
349 See bug http://bugs.gentoo.org/4411 for more info. 622 See bug http://bugs.gentoo.org/4411 for more info.
350 */ 623 */
351 ${output_format} 624 ${output_format}
352 GROUP ( /${libdir}/${lib} ) 625 GROUP ( ${EPREFIX}/${libdir}/${tlib} )
353 END_LDSCRIPT 626 END_LDSCRIPT
354 fi 627 ;;
628 esac
355 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}" 629 fperms a+x "/usr/${libdir}/${lib}" || die "could not change perms on ${lib}"
356 done 630 done
357} 631}

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