Package: glibc
Severity: wishlist
Tags: patch
Finally, there is a patch which creates a 32bit i386 version of libc6
on amd64 by adding an extra pass to glibc. The new packages 'libc6-i386'
and 'libc6-dev-i386' install the 32bit libc6 files in /usr/lib32, which
is a symlink to '/emul/ia32-linux/usr/lib'. This location may look a
bit strange first, but this is where the 'ia32-libs' package
installs all 32bit i386 libraries and files at the moment.
The 'ia32-libs' package currently installs a libc6 binary package
which has been compiled by the i386 distribution. This is ugly because
it makes the whole amd64 distribution, especially the amd64 gcc compiler,
depend on binary packages from the i386 distribution.
Of course the 'ia32-libs' package will also have to be changed,
so that it no longer installs libc6 by itself
but simply depends on libc6-i386 instead.
The attached patch - together with a corresponding patch to ia32-libs -
has been used for a few weeks by the experimental amd64/gcc-3.4 archive
without problems so far.
Regards
Andreas Jochens
This patch changes the following files of the glibc package:
* debian/sysdeps/amd64.mk:
Add an extra 'i386' pass which creates the packages 'libc6-i386' and
'libc6-dev-i386' containing a 32bit i386 version of the library
(this is much like the 'libc6-sparc64' or 'libc6-s390x' cases,
but this time the 64bit library is the native library and the
32bit library is the addititional one).
All following changes are necessary to correctly build the 'libc6-i386'
and 'libc6-dev-i386' packages on amd64:
* debian/control.in/main:
Add Build-Depends on 'gcc-3.4 [amd64]' to be able to create 32bit
binaries.
* debian/control.in/amd64-i386 (new file):
Control information for the 'libc6-i386' and 'libc6-dev-i386' packages.
* debian/debhelper.in/libc-dev-i386.install (new file),
debian/debhelper.in/libc-i386.install (newfile),
debian/debhelper.in/libc-i386.links (new file):
Define the contents of the packages 'libc6-i386' and 'libc6-dev-i386'
and move the files to the correct directories.
Provide the symlinks /lib/ld-linux.so.2 and /usr/lib32.
* debian/debhelper.in/libc.preinst:
On amd64 exclude '/usr/lib32' from the directories which are checked
for an installed version of libc. The 32bit i386 libc will be installed
in '/usr/lib32' which is a symlink to '/emul/ia32-linux/usr/lib'.
* debian/rules.d/debhelper.mk:
Prevent the use of the libc-otherbuild.* files if there is a special
libc-*.install file for the pass. Without this patch the
'libc-i386.install' file mentioned above would be overwritten by the
'libc-otherbuild.install' file.
* debian/patches/arch-fixup-attribute.dpatch (new file):
Patch from upstream CVS (necessary to compile the 32bit library on amd64):
* sysdeps/i386/dl-machine.h: Define ARCH_FIXUP_ATTRIBUTE and use
it in the fixup function declarations.
* elf/dl-runtime.c: If ARCH_FIXUP_ATTRIBUTE is not defined,
provide dummy definition. Use macro in fixup function definitions.
* debian/patches/00list:
Enable the new 'arch-fixup-attribute' patch.
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/sysdeps/amd64.mk ./debian/sysdeps/amd64.mk
--- ../tmp-orig/glibc-2.3.2.ds1/debian/sysdeps/amd64.mk 2004-09-29 15:17:10.633727680
+0200
+++ ./debian/sysdeps/amd64.mk 2004-09-29 09:11:39.071831872 +0200
@@ -12,3 +12,18 @@
ifeq ($(BUILD_CC_VERSION),3.4)
libc_extra_cflags += -g0
endif
+
+# build 32bit i386 library
+GLIBC_PASSES += i386
+DEB_ARCH_REGULAR_PACKAGES += libc6-i386 libc6-dev-i386
+i386_CC = gcc-3.4 -m32
+i386_MIN_KERNEL_SUPPORTED = 2.6.0
+i386_configure_build = x86_64-linux
+i386_configure_target = i486-linux
+i386_add-ons = nptl $(add-ons)
+libc6-i386_shlib_dep = libc6-i386 (>= $(shlib_dep_ver))
+i386_extra_cflags = -O3 -fomit-frame-pointer -D__USE_STRING_INLINES
+i386_extra_cflags += -g0 -fno-unit-at-a-time
+i386_extra_config_options = $(extra_config_options) --with-tls --with-__thread \
+ --host=i486-linux --with-headers=/usr/include/i386-linux \
+ --prefix=/emul/ia32-linux/usr
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/control ./debian/control
--- ../tmp-orig/glibc-2.3.2.ds1/debian/control 2004-09-29 15:17:10.321775104 +0200
+++ ./debian/control 2004-09-29 09:11:39.071831872 +0200
@@ -1,7 +1,7 @@
Source: glibc
Section: libs
Priority: required
-Build-Depends: gettext (>= 0.10.37-1), make (>= 3.80-1), dpkg-dev (>= 1.4.1.5),
debianutils (>= 1.13.1), tar (>= 1.13.11), bzip2, texinfo (>= 4.0),
linux-kernel-headers (>= 2.5.999-test7-bk-9) [!hurd-i386], mig (>= 1.3-2) [hurd-i386],
hurd-dev (>= 20020608-1) [hurd-i386], gnumach-dev [hurd-i386], texi2html, file,
gcc-3.3 | gcc-3.4, autoconf, binutils (>= 2.14.90.0.7-5), sed (>= 4.0.5-4), gawk,
debhelper (>= 4.1.76)
+Build-Depends: gettext (>= 0.10.37-1), make (>= 3.80-1), dpkg-dev (>= 1.4.1.5),
debianutils (>= 1.13.1), tar (>= 1.13.11), bzip2, texinfo (>= 4.0),
linux-kernel-headers (>= 2.5.999-test7-bk-9) [!hurd-i386], mig (>= 1.3-2) [hurd-i386],
hurd-dev (>= 20020608-1) [hurd-i386], gnumach-dev [hurd-i386], texi2html, file,
gcc-3.4 [amd64], gcc-3.3 | gcc-3.4, autoconf, binutils (>= 2.14.90.0.7-5), sed (>=
4.0.5-4), gawk, debhelper (>= 4.1.76)
Build-Depends-Indep: perl, po-debconf
Maintainer: GNU Libc Maintainers <[EMAIL PROTECTED]>
Uploaders: Ben Collins <[EMAIL PROTECTED]>, GOTO Masanori <[EMAIL PROTECTED]>, Philip
Blundell <[EMAIL PROTECTED]>, Jeff Bailey <[EMAIL PROTECTED]>, Daniel Jacobowitz
<[EMAIL PROTECTED]>
@@ -440,6 +440,26 @@
Most notably, IBM's JDK. If you experience problems with such
applications, you will need to remove this package.
+Package: libc6-i386
+Architecture: amd64
+Section: libs
+Priority: extra
+Depends: libc6 (= ${Source-Version}), lib32gcc1
+Description: GNU C Library: 32bit shared libraries for amd64
+ This package includes shared versions of the standard C
+ library and the standard math library, as well as many others.
+ This is the 32bit version of the library, meant for amd64 systems.
+
+Package: libc6-dev-i386
+Architecture: amd64
+Section: libdevel
+Priority: standard
+Depends: libc6-i386 (= ${Source-Version}), libc6-dev (= ${Source-Version})
+Description: GNU C Library: 32bit development libraries for amd64
+ Contains the symlinks and object files needed to compile and link programs
+ which use the standard C library. This is the 32bit version of the
+ library, meant for amd64 systems.
+
Package: libnss-dns-udeb
XC-Package-Type: udeb
Architecture: any
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/control.in/amd64_i386
./debian/control.in/amd64_i386
--- ../tmp-orig/glibc-2.3.2.ds1/debian/control.in/amd64_i386 1970-01-01
01:00:00.000000000 +0100
+++ ./debian/control.in/amd64_i386 2004-09-29 09:11:39.072831720 +0200
@@ -0,0 +1,20 @@
+Package: libc6-i386
+Architecture: amd64
+Section: libs
+Priority: extra
+Depends: libc6 (= ${Source-Version}), lib32gcc1
+Description: GNU C Library: 32bit shared libraries for amd64
+ This package includes shared versions of the standard C
+ library and the standard math library, as well as many others.
+ This is the 32bit version of the library, meant for amd64 systems.
+
+Package: libc6-dev-i386
+Architecture: amd64
+Section: libdevel
+Priority: standard
+Depends: libc6-i386 (= ${Source-Version}), libc6-dev (= ${Source-Version})
+Description: GNU C Library: 32bit development libraries for amd64
+ Contains the symlinks and object files needed to compile and link programs
+ which use the standard C library. This is the 32bit version of the
+ library, meant for amd64 systems.
+
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/control.in/main ./debian/control.in/main
--- ../tmp-orig/glibc-2.3.2.ds1/debian/control.in/main 2004-09-29 15:17:10.280781336
+0200
+++ ./debian/control.in/main 2004-09-29 09:11:39.072831720 +0200
@@ -1,7 +1,7 @@
Source: @glibc@
Section: libs
Priority: required
-Build-Depends: gettext (>= 0.10.37-1), make (>= 3.80-1), dpkg-dev (>= 1.4.1.5),
debianutils (>= 1.13.1), tar (>= 1.13.11), bzip2, texinfo (>= 4.0),
linux-kernel-headers (>= 2.5.999-test7-bk-9) [!hurd-i386], mig (>= 1.3-2) [hurd-i386],
hurd-dev (>= 20020608-1) [hurd-i386], gnumach-dev [hurd-i386], texi2html, file,
gcc-3.3 | gcc-3.4, autoconf, binutils (>= 2.14.90.0.7-5), sed (>= 4.0.5-4), gawk,
debhelper (>= 4.1.76)
+Build-Depends: gettext (>= 0.10.37-1), make (>= 3.80-1), dpkg-dev (>= 1.4.1.5),
debianutils (>= 1.13.1), tar (>= 1.13.11), bzip2, texinfo (>= 4.0),
linux-kernel-headers (>= 2.5.999-test7-bk-9) [!hurd-i386], mig (>= 1.3-2) [hurd-i386],
hurd-dev (>= 20020608-1) [hurd-i386], gnumach-dev [hurd-i386], texi2html, file,
gcc-3.4 [amd64], gcc-3.3 | gcc-3.4, autoconf, binutils (>= 2.14.90.0.7-5), sed (>=
4.0.5-4), gawk, debhelper (>= 4.1.76)
Build-Depends-Indep: perl, po-debconf
Maintainer: GNU Libc Maintainers <[EMAIL PROTECTED]>
Uploaders: Ben Collins <[EMAIL PROTECTED]>, GOTO Masanori <[EMAIL PROTECTED]>, Philip
Blundell <[EMAIL PROTECTED]>, Jeff Bailey <[EMAIL PROTECTED]>, Daniel Jacobowitz
<[EMAIL PROTECTED]>
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/debhelper.in/libc-dev-i386.install
./debian/debhelper.in/libc-dev-i386.install
--- ../tmp-orig/glibc-2.3.2.ds1/debian/debhelper.in/libc-dev-i386.install
1970-01-01 01:00:00.000000000 +0100
+++ ./debian/debhelper.in/libc-dev-i386.install 2004-09-29 09:11:39.072831720 +0200
@@ -0,0 +1,4 @@
+debian/tmp-i386/emul/ia32-linux/usr/lib/*.a* emul/ia32-linux/usr/lib
+debian/tmp-i386/emul/ia32-linux/usr/lib/*.o emul/ia32-linux/usr/lib
+debian/tmp-i386/emul/ia32-linux/usr/include/* emul/ia32-linux/usr/include
+debian/tmp-i386/emul/ia32-linux/usr/bin/* emul/ia32-linux/usr/bin
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/debhelper.in/libc-i386.install
./debian/debhelper.in/libc-i386.install
--- ../tmp-orig/glibc-2.3.2.ds1/debian/debhelper.in/libc-i386.install 1970-01-01
01:00:00.000000000 +0100
+++ ./debian/debhelper.in/libc-i386.install 2004-09-29 09:11:39.073831568 +0200
@@ -0,0 +1,2 @@
+debian/tmp-i386/emul/ia32-linux/usr/lib/*.so* emul/ia32-linux/usr/lib
+debian/tmp-i386/emul/ia32-linux/usr/lib/gconv/*.so* emul/ia32-linux/usr/lib/gconv
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/debhelper.in/libc-i386.links
./debian/debhelper.in/libc-i386.links
--- ../tmp-orig/glibc-2.3.2.ds1/debian/debhelper.in/libc-i386.links 1970-01-01
01:00:00.000000000 +0100
+++ ./debian/debhelper.in/libc-i386.links 2004-09-29 09:11:39.073831568 +0200
@@ -0,0 +1,2 @@
+/emul/ia32-linux/usr/lib/ld-linux.so.2 /lib/ld-linux.so.2
+/emul/ia32-linux/usr/lib /usr/lib32
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/debhelper.in/libc.preinst
./debian/debhelper.in/libc.preinst
--- ../tmp-orig/glibc-2.3.2.ds1/debian/debhelper.in/libc.preinst 2004-09-29
15:17:10.312776472 +0200
+++ ./debian/debhelper.in/libc.preinst 2004-09-29 15:16:52.798439056 +0200
@@ -145,7 +145,12 @@
then
dirs="/usr/local/lib /usr/local/lib32 /usr/local/lib64"
if ! test -L /usr; then
- dirs="$dirs /usr/lib /usr/lib32 /usr/lib64"
+ if [ `dpkg-architecture -qDEB_HOST_ARCH` = "amd64" ]; then
+ # the 32bit i386 libc may be installed in /usr/lib32 on amd64
+ dirs="$dirs /usr/lib /usr/lib64"
+ else
+ dirs="$dirs /usr/lib /usr/lib32 /usr/lib64"
+ fi
fi
if check_dirs $dirs; then
echo
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/patches/00list ./debian/patches/00list
--- ../tmp-orig/glibc-2.3.2.ds1/debian/patches/00list 2004-09-29 15:17:10.323774800
+0200
+++ ./debian/patches/00list 2004-09-29 09:12:07.094571768 +0200
@@ -109,4 +109,4 @@
glibc23-dlclose-l_opencount
glibc232-globfree-clear
# nptl-pthread-create-attr - disabled to worry about the ABI/function breakage
-
+arch-fixup-attribute
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/patches/arch-fixup-attribute.dpatch
./debian/patches/arch-fixup-attribute.dpatch
--- ../tmp-orig/glibc-2.3.2.ds1/debian/patches/arch-fixup-attribute.dpatch
1970-01-01 01:00:00.000000000 +0100
+++ ./debian/patches/arch-fixup-attribute.dpatch 2004-09-29 09:11:39.074831416
+0200
@@ -0,0 +1,82 @@
+#! /bin/sh -e
+
+# All lines beginning with `# DP:' are a description of the patch.
+# DP: * sysdeps/i386/dl-machine.h: Define ARCH_FIXUP_ATTRIBUTE and use
+# DP: it in the fixup function declarations.
+# DP: * elf/dl-runtime.c: If ARCH_FIXUP_ATTRIBUTE is not defined,
+# DP: provide dummy definition. Use macro in fixup function
+# DP: definitions.
+# DP: Dpatch author: Andreas Jochens <[EMAIL PROTECTED]>
+# DP: Patch author: Ulrich Drepper <[EMAIL PROTECTED]>
+# DP: Upstream status: in CVS
+# DP: Status Details:
+# DP: Date: 2004-03-08
+
+if [ $# -ne 2 ]; then
+ echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+ exit 1
+fi
+case "$1" in
+ -patch) patch -d "$2" -f --no-backup-if-mismatch -p1 < $0;;
+ -unpatch) patch -d "$2" -f --no-backup-if-mismatch -R -p1 < $0;;
+ *)
+ echo >&2 "`basename $0`: script expects -patch|-unpatch as argument"
+ exit 1
+esac
+exit 0
+
+# append the patch here and adjust the -p? flag in the patch calls.
+--- dl-machine.h 2004-08-05 14:30:44.417038000 +0000
++++ glibc-2.3.2/sysdeps/i386/dl-machine.h 2004-08-05 19:44:35.661107637 +0000
+@@ -155,11 +155,14 @@
+ destroys the passed register information. */
+ /* GKM FIXME: Fix trampoline to pass bounds so we can do
+ without the `__unbounded' qualifier. */
+-static ElfW(Addr) fixup (struct link_map *__unbounded l, ElfW(Word) reloc_offset)
+- __attribute__ ((regparm (2), unused));
++#define ARCH_FIXUP_ATTRIBUTE __attribute__ ((regparm (3), unused))
++
++static ElfW(Addr) fixup (struct link_map *__unbounded l,
++ ElfW(Word) reloc_offset)
++ ARCH_FIXUP_ATTRIBUTE;
+ static ElfW(Addr) profile_fixup (struct link_map *l, ElfW(Word) reloc_offset,
+ ElfW(Addr) retaddr)
+- __attribute__ ((regparm (3), unused));
++ ARCH_FIXUP_ATTRIBUTE;
+ # endif
+
+ /* This code is used in dl-runtime.c to call the `fixup' function
+--- dl-runtime.c 2003-02-07 19:41:12.000000000 +0000
++++ glibc-2.3.2/elf/dl-runtime.c 2004-08-05 19:48:48.885006003 +0000
+@@ -36,6 +36,12 @@
+ # define VERSYMIDX(sym) (DT_NUM + DT_THISPROCNUM + DT_VERSIONTAGIDX (sym))
+ #endif
+
++/* The fixup functions might have need special attributes. If none
++ are provided define the macro as empty. */
++#ifndef ARCH_FIXUP_ATTRIBUTE
++# define ARCH_FIXUP_ATTRIBUTE
++#endif
++
+
+ /* This function is called through a special trampoline from the PLT the
+ first time each PLT entry is called. We must perform the relocation
+@@ -45,7 +51,8 @@
+ function. */
+
+ #ifndef ELF_MACHINE_NO_PLT
+-static ElfW(Addr) __attribute_used__
++static ElfW(Addr)
++__attribute ((used, noinline)) ARCH_FIXUP_ATTRIBUTE
+ fixup (
+ # ifdef ELF_MACHINE_RUNTIME_FIXUP_ARGS
+ ELF_MACHINE_RUNTIME_FIXUP_ARGS,
+@@ -133,6 +140,7 @@
+ #if !defined PROF && !defined ELF_MACHINE_NO_PLT && !__BOUNDED_POINTERS__
+
+-static ElfW(Addr) __attribute_used__
++static ElfW(Addr)
++__attribute ((used, noinline)) ARCH_FIXUP_ATTRIBUTE
+ profile_fixup (
+ #ifdef ELF_MACHINE_RUNTIME_FIXUP_ARGS
+ ELF_MACHINE_RUNTIME_FIXUP_ARGS,
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/rules.d/control.mk
./debian/rules.d/control.mk
--- ../tmp-orig/glibc-2.3.2.ds1/debian/rules.d/control.mk 2004-09-29
15:17:10.626728744 +0200
+++ ./debian/rules.d/control.mk 2004-09-29 09:11:39.072831720 +0200
@@ -22,6 +22,7 @@
cat debian/control.in/libc6.1 >> [EMAIL PROTECTED]
cat debian/control.in/libc0.3 >> [EMAIL PROTECTED]
cat debian/control.in/libc1 >> [EMAIL PROTECTED]
+ cat debian/control.in/amd64_i386 >> [EMAIL PROTECTED]
cat debian/control.in/sparc64 >> [EMAIL PROTECTED]
cat debian/control.in/s390x >> [EMAIL PROTECTED]
cat debian/control.in/opt >> [EMAIL PROTECTED]
diff -urN ../tmp-orig/glibc-2.3.2.ds1/debian/rules.d/debhelper.mk
./debian/rules.d/debhelper.mk
--- ../tmp-orig/glibc-2.3.2.ds1/debian/rules.d/debhelper.mk 2004-09-29
15:17:10.627728592 +0200
+++ ./debian/rules.d/debhelper.mk 2004-09-29 09:11:39.073831568 +0200
@@ -183,7 +183,7 @@
sed -e "s#LIBC#$(libc)#" -i $$z; \
sed -e "s#DESTLIBDIR#$$destdir#" -i $$zd; \
sed -e "s/^#.*//" -i $$zd; \
- else \
+ elif [ ! -e $$z ]; then \
cp debian/debhelper.in/libc-otherbuild.install $$z; \
cp debian/debhelper.in/libc-otherbuild.preinst debian/$(libc)-$$x.preinst
; \
cp debian/debhelper.in/libc-otherbuild.postinst
debian/$(libc)-$$x.postinst ; \
--
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