summaryrefslogtreecommitdiff
blob: bd2e713008d6ed1c9c608f6bed7b38b763ea44e8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-libs/glibc/glibc-2.8_p20080602.ebuild,v 1.8 2008/09/05 20:23:16 vapier Exp $

inherit eutils versionator libtool toolchain-funcs flag-o-matic gnuconfig multilib

DESCRIPTION="GNU libc6 (also called glibc2) C library"
HOMEPAGE="http://www.gnu.org/software/libc/libc.html"

LICENSE="LGPL-2"
KEYWORDS="~alpha ~amd64 ~ia64 ~ppc ~ppc64 ~sparc ~x86"
RESTRICT="strip" # strip ourself #46186
EMULTILIB_PKG="true"

# Configuration variables
if [[ ${PV} == *_p* ]] ; then
RELEASE_VER=${PV%_p*}
BRANCH_UPDATE=""
SNAP_VER=${PV#*_p}
else
RELEASE_VER=${PV}
BRANCH_UPDATE=""
SNAP_VER=""
fi
MANPAGE_VER=""                                 # pregenerated manpages
INFOPAGE_VER=""                                # pregenerated infopages
PATCH_VER="2"                                  # Gentoo patchset
PORTS_VER=${RELEASE_VER}                       # version of glibc ports addon
LIBIDN_VER=""                                  # version of libidn addon
LT_VER=""                                      # version of linuxthreads addon
NPTL_KERN_VER=${NPTL_KERN_VER:-"2.6.9"}        # min kernel version nptl requires
#LT_KERN_VER=${LT_KERN_VER:-"2.4.1"}           # min kernel version linuxthreads requires

IUSE="debug gd glibc-omitfp glibc-compat20 hardened multilib nls selinux profile vanilla crosscompile_opts_headers-only ${LT_VER:+glibc-compat20 nptl nptlonly}"
S=${WORKDIR}/glibc-${RELEASE_VER}${SNAP_VER+-${SNAP_VER}}

# Here's how the cross-compile logic breaks down ...
#  CTARGET - machine that will target the binaries
#  CHOST   - machine that will host the binaries
#  CBUILD  - machine that will build the binaries
# If CTARGET != CHOST, it means you want a libc for cross-compiling.
# If CHOST != CBUILD, it means you want to cross-compile the libc.
#  CBUILD = CHOST = CTARGET    - native build/install
#  CBUILD != (CHOST = CTARGET) - cross-compile a native build
#  (CBUILD = CHOST) != CTARGET - libc for cross-compiler
#  CBUILD != CHOST != CTARGET  - cross-compile a libc for a cross-compiler
# For install paths:
#  CHOST = CTARGET  - install into /
#  CHOST != CTARGET - install into /usr/CTARGET/

export CBUILD=${CBUILD:-${CHOST}}
export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} == ${CHOST} ]] ; then
	if [[ ${CATEGORY/cross-} != ${CATEGORY} ]] ; then
		export CTARGET=${CATEGORY/cross-}
	fi
fi

[[ ${CTARGET} == hppa* ]] && NPTL_KERN_VER=${NPTL_KERN_VER/2.6.9/2.6.20}

is_crosscompile() {
	[[ ${CHOST} != ${CTARGET} ]]
}
alt_libdir() {
	if is_crosscompile ; then
		echo /usr/${CTARGET}/$(get_libdir)
	else
		echo /$(get_libdir)
	fi
}

if is_crosscompile ; then
	SLOT="${CTARGET}-2.2"
else
	# Why SLOT 2.2 you ask yourself while sippin your tea ?
	# Everyone knows 2.2 > 0, duh.
	SLOT="2.2"
	PROVIDE="virtual/libc"
fi

# General: We need a new-enough binutils for as-needed
# arch: we need to make sure our binutils/gcc supports TLS
DEPEND=">=sys-devel/gcc-3.4.4
	arm? ( >=sys-devel/binutils-2.16.90 >=sys-devel/gcc-4.1.0 )
	ppc? ( >=sys-devel/gcc-4.1.0 )
	ppc64? ( >=sys-devel/gcc-4.1.0 )
	>=sys-devel/binutils-2.15.94
	${LT_VER:+nptl? (} >=sys-kernel/linux-headers-${NPTL_KERN_VER} ${LT_VER:+)}
	>=sys-devel/gcc-config-1.3.12
	>=app-misc/pax-utils-0.1.10
	virtual/os-headers
	nls? ( sys-devel/gettext )
	>=sys-apps/sandbox-1.2.18.1-r2
	>=sys-apps/portage-2.1.2
	selinux? ( sys-libs/libselinux )"
RDEPEND="nls? ( sys-devel/gettext )
	selinux? ( sys-libs/libselinux )"

if [[ ${CATEGORY/cross-} != ${CATEGORY} ]] ; then
	DEPEND="${DEPEND} ${CATEGORY}/gcc"
	[[ ${CATEGORY} == *-linux* ]] && DEPEND="${DEPEND} ${CATEGORY}/linux-headers"
else
	DEPEND="${DEPEND} >=sys-libs/timezone-data-2007c"
	RDEPEND="${RDEPEND} sys-libs/timezone-data"
fi

SRC_URI=$(
	upstream_uris() {
		echo mirror://gnu/glibc/$1 ftp://sources.redhat.com/pub/glibc/{releases,snapshots}/$1 mirror://gentoo/$1
	}
	gentoo_uris() {
		local devspace="HTTP~vapier/dist/URI HTTP~azarah/glibc/URI"
		devspace=${devspace//HTTP/http://dev.gentoo.org/}
		echo mirror://gentoo/$1 ${devspace//URI/$1}
	}

	TARNAME=${PN}
	if [[ -n ${SNAP_VER} ]] ; then
		TARNAME="${PN}-${RELEASE_VER}"
		[[ -n ${PORTS_VER} ]] && PORTS_VER=${SNAP_VER}
		upstream_uris ${TARNAME}-${SNAP_VER}.tar.bz2
	else
		upstream_uris ${TARNAME}-${RELEASE_VER}.tar.bz2
	fi
	[[ -n ${LIBIDN_VER}    ]] && upstream_uris glibc-libidn-${LIBIDN_VER}.tar.bz2
	[[ -n ${PORTS_VER}     ]] && upstream_uris ${TARNAME}-ports-${PORTS_VER}.tar.bz2
	[[ -n ${LT_VER}        ]] && upstream_uris ${TARNAME}-linuxthreads-${LT_VER}.tar.bz2
	[[ -n ${BRANCH_UPDATE} ]] && gentoo_uris glibc-${RELEASE_VER}-branch-update-${BRANCH_UPDATE}.patch.bz2
	[[ -n ${PATCH_VER}     ]] && gentoo_uris glibc-${RELEASE_VER}-patches-${PATCH_VER}.tar.bz2
	[[ -n ${MANPAGE_VER}   ]] && gentoo_uris glibc-manpages-${MANPAGE_VER}.tar.bz2
	[[ -n ${INFOPAGE_VER}  ]] && gentoo_uris glibc-infopages-${INFOPAGE_VER}.tar.bz2
)

# eblit-include [--skip] <function> [version]
eblit-include() {
	local skipable=false
	[[ $1 == "--skip" ]] && skipable=true && shift

	local e v func=$1 ver=$2
	[[ -z ${func} ]] && die "Usage: eblit-include <function> [version]"
	for v in ${ver:+-}${ver} -${PVR} -${PV} "" ; do
		e="${FILESDIR}/eblits/${func}${v}.eblit"
		if [[ -e ${e} ]] ; then
			source "${e}"
			return 0
		fi
	done
	${skipable} && return 0
	die "Could not locate requested eblit '${func}' in ${FILESDIR}/eblits/"
}

# eblit-run-maybe <function>
# run the specified function if it is defined
eblit-run-maybe() {
	[[ $(type -t "$@") == "function" ]] && "$@"
}

# eblit-run <function> [version]
# aka: src_unpack() { eblit-run src_unpack ; }
eblit-run() {
	eblit-include --skip common "${*:2}"
	eblit-include "$@"
	eblit-run-maybe eblit-$1-pre
	eblit-${PN}-$1 || die
	eblit-run-maybe eblit-$1-post
}

src_unpack()  { eblit-run src_unpack  ; }
src_compile() { eblit-run src_compile ; }
src_test()    { eblit-run src_test    ; }
src_install() { eblit-run src_install ; }

eblit-src_unpack-post() {
	if use hardened ; then
		cd "${S}"
		einfo "Patching to get working PIE binaries on PIE (hardened) platforms"
		gcc-specs-pie && epatch "${FILESDIR}"/2.5/glibc-2.5-hardened-pie.patch
		epatch "${FILESDIR}"/2.5/glibc-2.5-hardened-configure-picdefault.patch
		epatch "${FILESDIR}"/2.7/glibc-2.7-hardened-inittls-nosysenter.patch

		einfo "Installing Hardened Gentoo SSP handler"
		cp -f "${FILESDIR}"/2.6/glibc-2.6-gentoo-stack_chk_fail.c \
			debug/stack_chk_fail.c || die

		if use debug ; then
			# When using Hardened Gentoo stack handler, have smashes dump core for
			# analysis - debug only, as core could be an information leak
			# (paranoia).
			sed -i \
				-e '/^CFLAGS-backtrace.c/ iCFLAGS-stack_chk_fail.c = -DSSP_SMASH_DUMPS_CORE' \
				debug/Makefile \
				|| die "Failed to modify debug/Makefile for debug stack handler"
		fi

		# Build nscd with ssp-all
		sed -i \
			-e 's:-fstack-protector$:-fstack-protector-all:' \
			nscd/Makefile \
			|| die "Failed to ensure nscd builds with ssp-all"
	fi
}

maint_pkg_create() {
	local base="/usr/local/src/gnu/glibc/glibc-${PV:0:1}_${PV:2:1}"
	cd ${base}
	local stamp=$(date +%Y%m%d)
	local d
	for d in libc ports ; do
		#(cd ${d} && cvs up)
		case ${d} in
			libc)  tarball="${P}";;
			ports) tarball="${PN}-ports-${PV}";;
		esac
		rm -f ${tarball}*
		ln -sf ${d} ${tarball}
		tar hcf - ${tarball} --exclude-vcs | lzma > "${T}"/${tarball}.tar.lzma
		du -b "${T}"/${tarball}.tar.lzma
	done
}

pkg_setup() {
	# prevent native builds from downgrading ... maybe update to allow people
	# to change between diff -r versions ? (2.3.6-r4 -> 2.3.6-r2)
	if [[ ${ROOT} == "/" ]] && [[ ${CBUILD} == ${CHOST} ]] && [[ ${CHOST} == ${CTARGET} ]] ; then
		if has_version '>'${CATEGORY}/${PF} ; then
			eerror "Sanity check to keep you from breaking your system:"
			eerror " Downgrading glibc is not supported and a sure way to destruction"
			die "aborting to save your system"
		fi
	fi

	# users have had a chance to phase themselves, time to give em the boot
	if [[ -e ${ROOT}/etc/locale.gen ]] && [[ -e ${ROOT}/etc/locales.build ]] ; then
		eerror "You still haven't deleted ${ROOT}/etc/locales.build."
		eerror "Do so now after making sure ${ROOT}/etc/locale.gen is kosher."
		die "lazy upgrader detected"
	fi

	if [[ ${CTARGET} == i386-* ]] ; then
		eerror "i386 CHOSTs are no longer supported."
		eerror "Chances are you don't actually want/need i386."
		eerror "Please read http://www.gentoo.org/doc/en/change-chost.xml"
		die "please fix your CHOST"
	fi

	if [[ -n ${LT_VER} ]] ; then
		if use nptlonly && ! use nptl ; then
			eerror "If you want nptlonly, add nptl to your USE too ;p"
			die "nptlonly without nptl"
		fi
	fi

	if [[ -e /proc/xen ]] && [[ $(tc-arch) == "x86" ]] && ! is-flag -mno-tls-direct-seg-refs ; then
		ewarn "You are using Xen but don't have -mno-tls-direct-seg-refs in your CFLAGS."
		ewarn "This will result in a 50% performance penalty, which is probably not what you want."
	fi

	use hardened && ! gcc-specs-pie && \
		ewarn "PIE hardening not applied, as your compiler doesn't default to PIE"
}

fix_lib64_symlinks() {
	# the original Gentoo/AMD64 devs decided that since 64bit is the native
	# bitdepth for AMD64, lib should be used for 64bit libraries. however,
	# this ignores the FHS and breaks multilib horribly... especially
	# since it wont even work without a lib64 symlink anyways. *rolls eyes*
	# see bug 59710 for more information.
	# Travis Tilley <lv@gentoo.org> (08 Aug 2004)
	if [ -L ${ROOT}/lib64 ] ; then
		ewarn "removing /lib64 symlink and moving lib to lib64..."
		ewarn "dont hit ctrl-c until this is done"
		rm ${ROOT}/lib64
		# now that lib64 is gone, nothing will run without calling ld.so
		# directly. luckily the window of brokenness is almost non-existant
		use amd64 && /lib/ld-linux-x86-64.so.2 /bin/mv ${ROOT}/lib ${ROOT}/lib64
		use ppc64 && /lib/ld64.so.1 /bin/mv ${ROOT}/lib ${ROOT}/lib64
		# all better :)
		ldconfig
		ln -s lib64 ${ROOT}/lib
		einfo "done! :-)"
		einfo "fixed broken lib64/lib symlink in ${ROOT}"
	fi
	if [ -L ${ROOT}/usr/lib64 ] ; then
		rm ${ROOT}/usr/lib64
		mv ${ROOT}/usr/lib ${ROOT}/usr/lib64
		ln -s lib64 ${ROOT}/usr/lib
		einfo "fixed broken lib64/lib symlink in ${ROOT}/usr"
	fi
	if [ -L ${ROOT}/usr/X11R6/lib64 ] ; then
		rm ${ROOT}/usr/X11R6/lib64
		mv ${ROOT}/usr/X11R6/lib ${ROOT}/usr/X11R6/lib64
		ln -s lib64 ${ROOT}/usr/X11R6/lib
		einfo "fixed broken lib64/lib symlink in ${ROOT}/usr/X11R6"
	fi
}

pkg_preinst() {
	# nothing to do if just installing headers
	just_headers && return

	# PPC64+others may want to eventually be added to this logic if they
	# decide to be multilib compatible and FHS compliant. note that this
	# chunk of FHS compliance only applies to 64bit archs where 32bit
	# compatibility is a major concern (not IA64, for example).

	# amd64's 2005.0 is the first amd64 profile to not need this code.
	# 2005.0 is setup properly, and this is executed as part of the
	# 2004.3 -> 2005.0 upgrade script.
	# It can be removed after 2004.3 has been purged from portage.
	{ use amd64 || use ppc64; } && [ "$(get_libdir)" == "lib64" ] && ! has_multilib_profile && fix_lib64_symlinks

	# it appears that /lib/tls is sometimes not removed.  See bug
	# 69258 for more info.
	if [[ -d ${ROOT}/$(alt_libdir)/tls ]] && [[ ! -d ${D}/$(alt_libdir)/tls ]] ; then
		ewarn "nptlonly or -nptl in USE, removing /${ROOT}$(alt_libdir)/tls..."
		rm -r "${ROOT}"/$(alt_libdir)/tls || die
	fi

	# Shouldnt need to keep this updated
	[[ -e ${ROOT}/etc/locale.gen ]] && rm -f "${D}"/etc/locale.gen

	# simple test to make sure our new glibc isnt completely broken.
	# make sure we don't test with statically built binaries since
	# they will fail.  also, skip if this glibc is a cross compiler.
	[[ ${ROOT} != "/" ]] && return 0
	[[ -d ${D}/$(get_libdir) ]] || return 0
	cd / #228809
	local x striptest
	for x in date env ls true uname ; do
		x=$(type -p ${x})
		[[ -z ${x} ]] && continue
		striptest=$(LC_ALL="C" file -L ${x} 2>/dev/null)
		[[ -z ${striptest} ]] && continue
		[[ ${striptest} == *"statically linked"* ]] && continue
		"${D}"/$(get_libdir)/ld-*.so \
			--library-path "${D}"/$(get_libdir) \
			${x} > /dev/null \
			|| die "simple run test (${x}) failed"
	done
}

pkg_postinst() {
	# nothing to do if just installing headers
	just_headers && return

	if ! tc-is-cross-compiler && [[ -x ${ROOT}/usr/sbin/iconvconfig ]] ; then
		# Generate fastloading iconv module configuration file.
		"${ROOT}"/usr/sbin/iconvconfig --prefix="${ROOT}"
	fi

	if ! is_crosscompile && [[ ${ROOT} == "/" ]] ; then
		# Reload init ...
		/sbin/telinit U

		# if the host locales.gen contains no entries, we'll install everything
		local locale_list="${ROOT}etc/locale.gen"
		if [[ -z $(locale-gen --list --config "${locale_list}") ]] ; then
			ewarn "Generating all locales; edit /etc/locale.gen to save time/space"
			locale_list="${ROOT}usr/share/i18n/SUPPORTED"
		fi
		local x jobs
		for x in ${MAKEOPTS} ; do [[ ${x} == -j* ]] && jobs=${x#-j} ; done
		locale-gen -j ${jobs:-1} --config "${locale_list}"
	fi
}