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2000-06-08Update.Ulrich Drepper
* elf/dl-addr.c (_dl_addr): Fill in correct information if symbol is in main program. * elf/Versions [ld] (GLIBC_2.2): Export _dl_argv.
2000-06-08Update.Ulrich Drepper
* elf/dl-addr.c (_dl_addr): Do exact testing of address range using l_map_start and l_map_end.
2000-06-08Update.Ulrich Drepper
* elf/dl-version.c: Add __builtin_expect in many places.
2000-06-07Update.Ulrich Drepper
2000-06-07 Andreas Jaeger <aj@suse.de> * elf/Makefile: Build ldconfig only when building shared libraries. 2000-06-07 Jakub Jelinek <jakub@redhat.com> * sysdeps/alpha/fpu/bits/mathinline.h (__fdimf): Only declare if __USE_ISOC99. (fdimf, __fdim, fdim): Likewise.
2000-06-04Update.Ulrich Drepper
* elf/elf.h (SHT_SUNW_move): Define.
2000-06-03Add more Solaris compatiblity definitions.Ulrich Drepper
2000-06-02Update.Ulrich Drepper
2000-06-02 Ulrich Drepper <drepper@redhat.com> * elf/rtld.c (process_envvars): Test for = after variable name.
2000-06-02Update.Ulrich Drepper
* elf/elf.h (ELF64_R_INFO): Cast sym value to Elf64_Xword before shifting.
2000-05-30Update.Ulrich Drepper
* locale/Versions [libc] (GLIBC_2.2): Add localeconv. * locale/localeconv.c: Make function versioned (with same definition).
2000-05-30(modules-names): Strip before using it.Ulrich Drepper
2000-05-29* elf/readlib.c (interpreters): Use LD_SO since this is supported Andreas Jaeger
for all platforms.
2000-05-27Update.Andreas Jaeger
2000-05-27 Andreas Jaeger <aj@suse.de> * sysdeps/unix/sysv/linux/i386/pread.c: Removed, we can use the normal version now. * sysdeps/unix/sysv/linux/i386/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/i386/pwrite64.c: Likewise. * sysdeps/unix/sysv/linux/mips/pread.c: Likewise. * sysdeps/unix/sysv/linux/mips/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/arm/pread.c: Likewise. * sysdeps/unix/sysv/linux/arm/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/pread.c (__libc_pread): Check endianness to decide how to pass arguments. * sysdeps/unix/sysv/linux/pwrite.c (__libc_pwrite): Likewise. * elf/vismain.c: Use test-skeleton interface. (TEST_FUNCTION): New macro. (do_test): Renamed from main.
2000-05-27Update.Ulrich Drepper
* elf/dl-load.c (_dl_map_object): Don't ignore RPATHs of loader == NULL.
2000-05-26Update.Andreas Jaeger
2000-05-26 Andreas Jaeger <aj@suse.de> * elf/ldconfig.h: Update parameter list for process_elf_file. * sysdeps/unix/sysv/linux/sparc/readelflib.c (process_elf_file): Add parameter file_length and pass it ot process_elf*file. * sysdeps/generic/readelflib.c (check_ptr): New. (process_elf_file): Use check_ptr to check all accesses to the mmapped file. Add parameter file_length. * elf/readlib.c (known_libs): Use <gnu/lib-names.h> to specify library names. * sunrpc/xdr_intXX_t.c (xdr_uint8_t): Fix conversion. Closes PR libc/1573, reported by Bradley White <bww@laurelnetworks.com>.
2000-05-25Update.Ulrich Drepper
* csu/Makefile (routines): Add check_fds. * elf/rtld.c (dl_main): Call __libc_check_standard_fds for SUID binaries. Add various __builtin_expect. * sysdeps/generic/libc-start.c: Move check_fds and helper functions... * sysdeps/generic/check_fds.c: ...here. New file. * malloc/malloc.c (ptmalloc_init): Only enable debugging for SUID binaries if file /etc/suid-debug is available.
2000-05-24Update.Ulrich Drepper
* elf/dl-sym.c: Minor cleanups.
2000-05-23Update.Ulrich Drepper
2000-05-23 Ulrich Drepper <drepper@redhat.com> * elf/Makefile (tests): Add $(tests-vis-$(have-protected)). (tests-vis-yes): Add vismain. (modules-names): Add $(modules-vis-$(have-protected)). (modules-vis-yes): Add vismod1, vismod2, and vismod3. Add rules to generate and run vismain. * elf/vismain.c: New file. * elf/vismod1.c: New file. * elf/vismod2.c: New file. * elf/vismod3.c: New file.
2000-05-23(tests): Add $(tests-vis-$(have-protected)). (tests-vis-yes): Add vismain. ↵Ulrich Drepper
(modules-names): Add $(modules-vis-$(have-protected)). (modules-vis-yes): Add vismod1, vismod2, and vismod3. Add rules to generate and run vismain.
2000-05-22Update.Ulrich Drepper
2000-05-22 Jakub Jelinek <jakub@redhat.com> * elf/dl-load.c (_dl_init_paths): If env_path_list has 0 elements, free it and set to (void *) -1.
2000-05-22Update.Ulrich Drepper
2000-05-21 H.J. Lu <hjl@gnu.org> * elf/do-lookup.h (do_lookup_versioned): Replace reloc_type parameter with noexec and noplt parameter. (do_lookup): Likewise. * elf/dl-lookup.c (_dl_lookup_symbol): Change for new parameters of do_lookup. Support STV_PROTECTED. (_dl_lookup_symbol_skip): Likewise. (_dl_lookup_versioned_symbol): Likewise. (_dl_lookup_versioned_symbol_skip): Likewise. * elf/dl-reloc.c (RESOLVE): Check STB_LOCAL instead of ST_VISIBILITY. * elf/dl-runtime.c (profile_fixup): Fix a typo in comment.
2000-05-22(do_lookup_versioned): Replace reloc_type parameter with noexec and noplt ↵Ulrich Drepper
parameter. (do_lookup): Likewise.
2000-05-17Update.Andreas Jaeger
2000-05-17 Jakub Jelinek <jakub@redhat.com> * sysdeps/generic/dl-cache.h (_DL_CACHE_DEFAULT_ID): Only define if not yet defined. (_dl_cache_check_flags): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/dl-cache.h: include_next dl-cache.h. 2000-05-17 Andreas Jaeger <aj@suse.de> * manual/creature.texi (Feature Test Macros): Remove paragraph since the description is wrong. Closes PR libc/1691, reported by Geoff Clare <gwc@unisoft.com>. 2000-05-17 Andreas Jaeger <aj@suse.de> * time/test_time.args: Removed. * time/Makefile (test_time-ARGS): Added contents here instead. * posix/tstgetopt.args: Removed. * posix/Makefile (tstgetopt-ARGS): Added contents here instead. * Rules: Allow arguments for test files to be specified in Makefile with testname-ARGS; remove rules with .args in it. * dirent/Makefile (opendir-tst1-ARGS): Use this for opendir-tst1, remove old bogus rule for opendir-tst1.args. * stdlib/test-canon.c: Rewrite to use test-skeleton.c. * stdlib/Makefile (test-canon-ARGS): New, supply argument to chdir into objdir. This allows a readonly sourcetree. Reported by lrgallardo@yahoo.com, closes PR libc/1421. 2000-05-16 Andreas Jaeger <aj@suse.de>, David Huggins-Daines <dhd@linuxcare.com> * sysdeps/generic/dl-cache.c (_dl_load_cache_lookup): Set cache_data in case of only new cache format correctly. * sysdeps/generic/dl-cache.c (_dl_load_cache_lookup): Align struct cache_file_new. * sysdeps/generic/dl-cache.h (ALIGN_CACHE): New macro to align struct cache_file_new. * elf/cache.c (save_cache): Fix str_offset if only new cache is present. * elf/cache.c (save_cache): Align struct new_file_cache. (print_cache): Likewise.
2000-05-152000-05-13 Jakub Jelinek <jakub@redhat.com>Andreas Jaeger
* elf/soinit.c (__libc_global_ctors): Move __pthread_initialize_minimal call out of HAVE_DWARF2_* defines. * resolv/resolv.h (__res_state): Added __attribute__((const)). (_res): If __RES_PTHREAD_INTERNAL is defined, declare it as variable, don't define it to __res_state call. 2000-05-13 Jakub Jelinek <jakub@redhat.com> * internals.h (__RES_PTHREAD_INTERNAL): Define. 2000-05-13 Jakub Jelinek <jakub@redhat.com> * internals.h (__RES_PTHREAD_INTERNAL): Define.
2000-05-10Update.Andreas Jaeger
* elf/dl-reloc.c (_dl_reloc_bad_type): Sync messages with plt argument. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Handle R_SPARC_UA64. * sysdeps/unix/sysv/linux/sparc/sparc64/time.c: New file. 2000-05-10 Jakub Jelinek <jakub@redhat.com>
2000-05-10Update.Andreas Jaeger
at proper place. Compute the high nibble correctly.
2000-05-10Update.Andreas Jaeger
2000-05-10 Jakub Jelinek <jakub@redhat.com> * elf/dl-reloc.c (_dl_reloc_bad_type): Write type into the message at proper place.
2000-05-10Update.Andreas Jaeger
* elf/ldconfig.c: Include elf.h.
2000-05-10Update.Andreas Jaeger
2000-05-09 Jakub Jelinek <jakub@redhat.com> * elf/dl-sym.c (_dl_sym): Test ref not result for non-zero. (_dl_vsym): Likewise. Reported by Owen Taylor <otaylor@redhat.com>. * elf/dl-deps.c (_dl_map_object_deps): Zero terminate L->l_initfini always.
2000-05-08Update.Ulrich Drepper
2000-05-08 Jakub Jelinek <jakub@redhat.com> * elf/dl-fini.c (_dl_fini): Bump l_opencount of all objects so that they are not dlclose'd from underneath us.
2000-05-082000-05-08 Jakub Jelinek <jakub@redhat.com>Andreas Jaeger
* elf/dl-lookup.c (add_dependency): Reallocate l_reldeps in sizeof(struct link_map *) chunks, not in bytes.
2000-05-07Update.Ulrich Drepper
2000-05-06 Bruno Haible <haible@clisp.cons.org> * iconv/gconv_open.c (__gconv_open): If __gconv_find_transform returned != __GCONV_OK, there is nothing to clean up. 2000-05-06 Bruno Haible <haible@clisp.cons.org> * intl/tst-gettext.c (main): Disable possibly existing LC_CTYPE and OUTPUT_CHARSET environment variables. 2000-05-06 Andreas Jaeger <aj@suse.de> * sysdeps/generic/dl-cache.h (struct file_entry_new): New. (struct cache_file_new): New. (struct file_entry): New (moved from cache.c). (struct cache_file): New (moved from cache.c). * sysdeps/generic/dl-cache.c (SEARCH_CACHE): New macro, broken out from _dl_load_cache_lookup. (_dl_load_cache_lookup): Move search to SEARCH_CACHE macro, handle the different cache formats. New variable cache_new for new format. * elf/ldconfig.h: Change according to changes in cache.c and ldconfig.c; remove cache_libcmp; add opt_format. * elf/ldconfig.c: Include "dl-cache.h" and "dl-procinfo.h"; remove stuff that's defined in those headers. Add hwcap to struct lib_entry. (opt_format): New variable to select cache format. (options): Add format parameter. (is_hwcap): New function. (path_hwcap): New function. (parse_opt): Handle new format parameter. (search_dir): Handle hwcap, search also subdirectories with hwcap. * elf/cache.c (_GNU_SOURCE): Removed. Not needed anymore since ldconfig is part of glibc. Include dl-cache.h and remove stuff that's defined there. (struct cache_entry): Add new member hwcap. (print_entry): Print hwcap, cleanup a bit. (print_cache): Print new and old formats. (compare): Use _dl_cache_libcmp from dl-cache.h; handle hwcap. (save_cache): Save new and old formats. (add_to_cache): Handle hwcap. * sysdeps/generic/dl-cache.c (_dl_cache_libcmp): Moved from here... * sysdeps/generic/dl-cache.h (_dl_cache_libcmp): ...to here. * sysdeps/generic/dl-cache.c (LD_SO_CACHE): Moved from here... * sysdeps/generic/dl-cache.h (LD_SO_CACHE): ...to here. * sysdeps/generic/dl-cache.c (CACHEMAGIC): Moved from here... * sysdeps/generic/dl-cache.h (CACHEMAGIC): ...to here. 2000-05-05 Bruno Haible <haible@clisp.cons.org> * intl/dcigettext.c (alignof): New macro. (_nl_find_msg): Use it instead of __alignof__. Pass correct output buffer length to __gconv/iconv. If malloc (freemem_size) fails, set freemem_size to 0. 2000-05-05 Bruno Haible <haible@clisp.cons.org> * intl/dcigettext.c (dcigettext): Fix interpretation of tsearch return value.
2000-05-05Update.Ulrich Drepper
* elf/Makefile (distribute): Add dl-lookupcfg.h. * sysdeps/ia64/Dist: New file.
2000-05-05Update.Ulrich Drepper
2000-05-05 Ulrich Drepper <drepper@redhat.com> * elf/dl-load.c (_dl_map_object_from_fd): Little of computation of parameter to mprotect and for variable assignments. 2000-05-03 Jes Sorensen <jes@linuxcare.com> * sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Check the validity of map before dereferencing it. * elf/dl-reloc.c (RESOLVE_MAP): Define. 2000-05-02 Jes Sorensen <jes@linuxcare.com> * elf/dl-runtime.c (fixup): Add the value returned in the symbol lookup to the arguments to elf_machine_fixup_plt(). * sysdeps/ia64/dl-machine.h (elf_machine_fixup_plt): Add Link_map of the symbol being resolved to input argument list and make the function return the pointer to the reloc. * sysdeps/alpha/dl-machine.h (elf_machine_fixup_plt): Change return valuie to lookup_t and return the value. * sysdeps/arm/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/generic/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_fixup_plt): Likewise. * sysdeps/powerpc/dl-machine.h (elf_machine_fixup_plt): Likewise. Make it an inline function returning value after calling __elf_machine_fixup_plt(). * elf/dl-sym.c (_dl_vsym): Use DL_SYMBOL_ADDRESS() to obtain the symbol address. * elf/dl-symbol.c (_dl_symbol_value): Use LOOKUP_VALUE_ADDRESS to obtain the symbol address. * sysdeps/generic/ldsodefs.h: Add generic DL_SYMBOL_ADDRESS() macro depending on the definition of ELF_FUNCTION_PTR_IS_SPECIAL. * sysdeps/ia64/dl-machine.h: Add DL_SYMBOL_ADDRESS() macro calling _dl_symbol_address() - this way DL_SYMBOL_ADDRESS() turns into an inline on non ia64. 2000-04-28 Jes Sorensen <jes@linuxcare.com> * elf/dl-runtime.c (fixup): Use the portable macros to get the symbol address of an object. * elf/dl-runtime.c (fixup-profile): Use the portable macros to get the symbol address of an object. * elf/dl-libc.c (struct do_dlsym_args): Change loadbase to a lookup_t. * elf/dl-lookup.c (_dl_lookup_symbol): Likewise. (_dl_lookup_symbol_skip): Likewise. (_dl_lookup_versioned_symbol): Likewise. (_dl_lookup_versioned_symbol_skip): Likewise. 2000-04-27 Jes Sorensen <jes@linuxcare.com> * elf/rtld.c (_dl_start): Get the function pointer return address via _dl_start_address for architectures that need a function pointer descriptor rather than just a pointer (ia64). * sysdeps/generic/dl-lookupcfg.h: New file. * sysdeps/ia64/dl-lookupcfg.h: New file. * sysdeps/ia64/dl-machine.h: New file. * sysdeps/ia64/dl-symaddr.c: New file. * sysdeps/ia64/dl-fptr.c: New file. * elf/elf.h: Add IA-64 specific definitions.
2000-05-04(dl_open_worker): Use l_map_start and l_map_end to test for pointer in range ↵Ulrich Drepper
of DSO address space.
2000-04-28Update.Ulrich Drepper
* wcsmbs/wcrtomb.c (__wcrtomb): Set end of buffer correctly if s == NULL. Little optimization. * elf/dl-init.c (_dl_init): Correct typo (DT_PREINIT_ARRAY not DT_PREINIT_ARRAYSZ). Reported by Jes Sorensen <Jes.Sorensen@cern.ch>.
2000-04-27Update.Ulrich Drepper
2000-04-27 Ulrich Drepper <drepper@redhat.com> * elf/soinit.c (__libc_global_ctors): Call __pthread_initialize_minimal if this function is available. * sysdeps/i386/i486/atomicity.h (exchange_and_add): Use uint32_t for all values. <haible@clisp.cons.org>.
2000-04-25Update.Ulrich Drepper
2000-04-25 Ulrich Drepper <drepper@redhat.com> * elf/dl-profile.c (_dl_mcount): Try to be thread-safe while not setting the state to GMON_PROF_BUSY.
2000-04-25Update.Ulrich Drepper
* elf/dl-profile.c (_dl_start_profile): define all variables which do not have to be global as local variables.
2000-04-24Update.Ulrich Drepper
* elf/dl-reloc.c (_dl_relocate_object): Add one more __builtin_expect saying that we don't normally expect to profile.
2000-04-21Update.Ulrich Drepper
2000-04-19 Jakub Jelinek <jakub@redhat.com> * locale/programs/ld-ctype.c (ctype_output): Set size of the idx field to nelems * sizeof (uint32_t). * locale/programs/ld-address.c (address_output): Align word fields properly. * locale/programs/ld-monetary.c (monetary_output): Likewise. Don't restart idx pointers to idx end at the duo_int_curr_symbol field. Avoid giving arbitrary garbage in the crncystr field. Use sizeof(uint32_t) instead of 4 for len in uno_valid_from, uno_valid_to, duo_valid_from, duo_valid_to and conversion_rate fields. * locale/programs/ld-numeric.c (numeric_output): Likewise. Don't restart idx pointers to idx end at the decimal_point_wc field. * locale/programs/ld-time.c (time_output): week_1stday should be word, not byte. Align it properly. 2000-04-19 H.J. Lu <hjl@gnu.org> * csu/gmon-start.c (_start): Declared as "extern void". (etext): Likewise. 2000-04-18 Andreas Jaeger <aj@suse.de> * manual/install.texi (Running make install): Don't mention utmpd anymore. 2000-04-18 Andreas Jaeger <aj@suse.de> * linuxthreads/Versions: Use ld instead of ld.so. * elf/Makefile (ld-map): Use ld.map. * Versions.def: Use ld instead of ld.so. * elf/Versions: Likewise. * sysdeps/mach/hurd/Versions: Likewise.
2000-04-212000-04-20 Andreas Jaeger <aj@suse.de>Andreas Jaeger
* elf/rtld.c (print_statistics): Move ifndef further up. (_dl_start_final): Added HP_TIMINIG_NONAVAIL to avoid warnings. (dl_main): Likewise. 2000-04-20 Andreas Jaeger <aj@suse.de> * elf/rtld.c (print_statistics): Move ifndef further up. (_dl_start_final): Added HP_TIMINIG_NONAVAIL to avoid warnings. (dl_main): Likewise.
2000-04-182000-04-18 Andreas Jaeger <aj@suse.de>Andreas Jaeger
* elf/rtld.c (process_dl_debug): Remove obsolete comment. * elf/rtld.c (process_dl_debug): Remove obsolete comment.
2000-04-18Update.Ulrich Drepper
* elf/rtld.c: Display statitics option also if hp timing is not available.
2000-04-182000-04-18 Andreas Jaeger <aj@suse.de>Andreas Jaeger
* elf/rtld.c (print_statistics): Added HP_TIMINIG_NONAVAIL where needed. 2000-04-18 Andreas Jaeger <aj@suse.de> * elf/rtld.c (print_statistics): Added HP_TIMINIG_NONAVAIL where needed.
2000-04-18Update.Ulrich Drepper
* sysdeps/generic/hp-timing.h (HP_TIMING_NONAVAIL): Define to signal timing is not really implemented. 2000-04-17 Andreas Jaeger <aj@suse.de> * elf/rtld.c (process_dl_debug): Mention statistics in help message. 2000-04-17 Jakub Jelinek <jakub@redhat.com> * Makefile (install): Use slibdir and libdir instead of inst_slibdir and inst_libdir. 2000-04-17 Ulrich Drepper <drepper@redhat.com>
2000-04-17Update.Ulrich Drepper
* elf/dl-reloc.c (_dl_relocate_object): Add more __builtin_expect. * elf/dl-lookup.c: Likewise. * elf/dl-init.c (_dl_init): Likewise. * elf/dl-fini.c (_dl_fini): Likewise. * elf/dl-deps.c (_dl_map_object_deps): Likewise. * elf/dl-close.c (_dl_close): Likewise. * elf/rtld.c (_dl_start_final): Likewise.
2000-04-17Update.Ulrich Drepper
* elf/dl-reloc.c (_dl_relocat_object): Add more __builtin_expect. * elf/dl-lookup.c: Add more __builtin_expect. * elf/dl-init.c (_dl_init): Add more __builtin_expect. * elf/dl-fini.c (_dl_fini): Add more __builtin_expect. * elf/dl-deps.c (_dl_map_object_deps): Add more __builtin_expect. * elf/dl-close.c (_dl_close): Add more __builtin_expect. * elf/rtld.c (_dl_start_final): Add more __builtin_expect.
2000-04-17Update.Ulrich Drepper
2000-04-17 Ulrich Drepper <drepper@redhat.com> * elf/dl-lookup.c (add_dependency): Correct __builtin_expect use.
2000-04-15Update.Ulrich Drepper
* elf/dl-version.c (_dl_check_map_versions): New argument trace_mode. Before testing versions check that we actually loaded the object and whether we are in trace mode. If not loaded during tracing don't test versions in this object. (_dl_check_all_versions): Take new parameter and pass to _dl_check_map_versions. * sysdeps/generic/ldsodefs.h: Update prototypes for _dl_check_all_versions and _dl_check_map_versions. * elf/rtld.c (struct version_check_args): Add dotrace. (version_check_doit): Pass args->dotrace to _dl_check_all_versions. (dl_main): Pass info about trace mode to version_check_doit. * elf/dl-open.c (dl_open_worker): Pass zero as new argument to _dl_check_all_versions. * manual/users.texi (XPG Functions): Document utmpxname, getutmp, and getutmpx. Patch by Bryan Henderson <bryanh@giraffe-data.com>.
2000-04-11Update.Ulrich Drepper
2000-04-11 Ulrich Drepper <drepper@redhat.com> * posix/globtest.sh: Fix last change. 2000-04-10 Philip Blundell <philb@gnu.org> * sysdeps/unix/sysv/linux/bits/in.h (IPV6_JOIN_GROUP, IPV6_LEAVE_GROUP): New names for IPV6_ADD_MEMBERSHIP, IPV6_DROP_MEMBERSHIP. * sysdeps/generic/bits/in.h (IPV6_JOIN_GROUP, IPV6_LEAVE_GROUP): Likewise. 2000-04-11 Ulrich Drepper <drepper@redhat.com> * elf/readlib (process_file): Close streams in case of an error. 2000-04-09 Andreas Jaeger <aj@suse.de> * elf/readlib.c (process_file): Check if file is big enough to contain aout and ELF headers. Reported by Reinhard Moosauer <RMoosauer@steinecker.com>. 2000-04-10 Jes Sorensen <Jes.Sorensen@cern.ch> * elf/dl-fini.c: Include alloca.h to get proper prototype for alloca(). 2000-04-11 Ulrich Drepper <drepper@redhat.com> * test-skeleton.c (main): If STDOUT_UNBUFFERED is defined, make stdout stream unbuffered. * rt/Makefile (tests): Add tst-clock. Add rules to build tst-clock. * rt/tst-clock.c: New file. * sysdeps/unix/i386/i586/clock_getres.c: Correct expression to decide about initialization of nsec. * sysdeps/unix/i386/i586/clock_gettime.c: Correct expression to decide about initialization of freq. Set retval to zero if successful. * sysdeps/unix/sysv/linux/i386/get_clockfreq.c: Cache result.