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2000-03-30 Ulrich Drepper <drepper@redhat.com> Implement dynamic determination of constructor/destructor order in the dynamic linker. * elf/Versions [ld.so] (GLIBC_2.0): Remove _dl_init_next. (GLIBC_2.2): Add _dl_init. * elf/dl-close.c: Also call all destructors in FINI_ARRAY. r_duplist is not anymore allocated separately. l_initfini is and therefore free it if necessary. * elf/dl-deps.c: If a searchlist has to be allocated, put all in one malloc block. Otherwise allocate l_initfini list only. Put dependencies for the object in l_initfini list. Sort dependencies for the object to be loaded topologically. * elf/dl-fini.c: Before running the destructors sort the topologically. * elf/dl-init.c (_dl_init): Renamed from _dl_init_next. Rewrite to call constructors instead of iterating over the pointers. Get list of objects for which to run constructors from l_initfini element. Accept argc, argv, and env as parameters and pass them to the constructors. * elf/ld-load.c (_dl_map_object_from_fd): Initialize l_ldnum member with size of dynamic section. * elf/dl-open.c (dl_open_worker): Only call _dl_init instead of _dl_init_next and calling constructors ourself. * elf/dl-preinit.c (_dl_preinit): Renamed from _dl_preinit_next. Take argc, argv, and env as parameters and pass them to the constructors. Rewrite to call all constructors and not iterate over the pointers. * elf/dynamic-link.h: Don't relocate DT_FINI_ARRAY entry. Don't precompute l_initcount and l_preinitcount. * elf/link.h (struct link_map): Add l_ldnum member. Make l_phdr_allocated part of the bitfield. Remove l_runcount, l_initcount, and l_preinitcount. Add l_initfini. * sysdeps/generic/ldsodefs.h: Replace _dl_init_next prototype with one for _dl_init. * sysdeps/i386/dl-machine (RTLD_START): Rewrite to match new init function interface. * sysdeps/unix/sysv/linux/init-first.h: Removed. * sysdeps/unix/sysv/linux/Dist: Delete file here as well. * sysdeps/unix/sysv/linux/init-first.c [PIC]: Don't use SYSDEP_CALL_INIT. Make _init a strong alias of init. The calling conventions now match. * sysdeps/generic/libc-start.c: Calling __libc_init_first has no effect for shared objects. Don't emit message and call only for static library. |
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This directory contains the version 2.1.90 release of the GNU C Library. Many bugs have been fixed since the last release. Some bugs surely remain. As of this release, the GNU C library is known to run on the following configurations: *-*-gnu GNU Hurd i[3456]86-*-linux-gnu Linux-2.x on Intel m68k-*-linux-gnu Linux-2.x on Motorola 680x0 alpha-*-linux-gnu Linux-2.x on DEC Alpha powerpc-*-linux-gnu Linux and MkLinux on PowerPC systems sparc-*-linux-gnu Linux-2.x on SPARC sparc64-*-linux-gnu Linux-2.x on UltraSPARC arm-*-none ARM standalone systems arm-*-linux Linux-2.x on ARM arm-*-linuxaout Linux-2.x on ARM using a.out binaries Former releases of this library (version 1.09.1 and perhaps earlier versions) used to run on the following configurations: alpha-dec-osf1 i[3456]86-*-bsd4.3 i[3456]86-*-isc2.2 i[3456]86-*-isc3 i[3456]86-*-sco3.2 i[3456]86-*-sco3.2v4 i[3456]86-*-sysv i[3456]86-*-sysv4 i[3456]86-force_cpu386-none i[3456]86-sequent-bsd i960-nindy960-none m68k-hp-bsd4.3 m68k-mvme135-none m68k-mvme136-none m68k-sony-newsos3 m68k-sony-newsos4 m68k-sun-sunos4 mips-dec-ultrix4 mips-sgi-irix4 sparc-sun-solaris2 sparc-sun-sunos4 Since no one has volunteered to test and fix the above configurations, these are not supported at the moment. It's expected that these don't work anymore. Porting the library is not hard. If you are interested in doing a port, please contact the glibc maintainers by sending electronic mail to <bug-glibc@gnu.org>. The GNU C library now includes Michael Glad's Ultra Fast Crypt, which provides the Unix `crypt' function, plus some other entry points. Because of the United States export restriction on DES implementations, we are distributing this code separately from the rest of the C library. There is an extra distribution tar file just for crypt; it is called `glibc-crypt-2.1.90.tar.gz'. You can just unpack the crypt distribution along with the rest of the C library and build; you can also build the library without getting crypt. Users outside the USA can get the crypt distribution via anonymous FTP from ftp.gwdg.de [134.76.11.100] in the directory pub/linux/glibc, or another archive site outside the USA. Archive maintainers are encouraged to copy this distribution to their archives outside the USA. Please get it from ftp.gwdg.de; transferring this distribution from ftp.gnu.org (or any other site in the USA) to a site outside the USA is in violation of US export laws. Beside the separate crypt tar file there are some more add-ons which can be used together with GNU libc. They are designed in a way to ease the installation by integrating them in the libc source tree. Simply get the add-ons you need and use the --enable-add-ons option of the `configure' script to tell where the add-ons are found. Please read the FAQ file for more details. See the file INSTALL to find out how to configure, build, install, and port the GNU C library. You might also consider reading the WWW pages for the GNU libc at http://www.gnu.org/software/libc/libc.html. The GNU C Library is completely documented by the Texinfo manual found in the `manual/' subdirectory. The manual is still being updated and contains some known errors and omissions; we regret that we do not have the resources to work on the manual as much as we would like. Please send comments on the manual to <bug-glibc-manual@gnu.org>, and not to the library bug-reporting address. The file NOTES contains a description of the feature-test macros used in the GNU C library, explaining how you can tell the library what facilities you want it to make available. We prefer to get bug reports sent using the `glibcbug' shell script which is installed together with the rest of the GNU libc to <bugs@gnu.org>. Simply run this shell script and fill in the information. Nevertheless you can still send bug reports to <bug-glibc@gnu.org> as normal electronic mails. The GNU C Library is free software. See the file COPYING.LIB for copying conditions.