From 26b4d7667169f8db26fd8194b3c498ec58e50f90 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 5 Sep 1997 01:43:20 +0000 Subject: Update. 1997-09-05 03:15 Ulrich Drepper * Makefile (subdirs): Reorganize order so that nss follows add-ons. * config.make.in (LDAP): Add. * configure.in: Prepare for ldap add-on. * shlib-versions: Add version numbers for ldap NSS module. * nss/Makefile: Add rules to build ldap NSS module. * db/btree/bt_page.c (__bt_free): Update meta data information. Update db from db-2.3.6. * db2/db.h: Updated. * db2/btree/bt_close.c: Updated. * db2/btree/bt_compare.c: Updated. * db2/btree/bt_conv.c: Updated. * db2/btree/bt_cursor.c: Updated. * db2/btree/bt_delete.c: Updated. * db2/btree/bt_put.c: Updated. * db2/btree/bt_rec.c: Updated. * db2/btree/bt_recno.c: Updated. * db2/btree/bt_search.c: Updated. * db2/btree/bt_split.c: Updated. * db2/btree/bt_stat.c: Updated. * db2/common/db_appinit.c: Updated. * db2/common/db_apprec.c: Updated. * db2/common/db_byteorder.c: Updated. * db2/common/db_err.c: Updated. * db2/common/db_region.c: Updated. * db2/db/db.c: Updated. * db2/db/db_conv.c: Updated. * db2/db/db_dup.c: Updated. * db2/db/db_pr.c: Updated. * db2/db/db_ret.c: Updated. * db2/db185/db185.c: Updated. * db2/dbm/dbm.c: Updated. * db2/hash/hash_dup.c: Updated. * db2/include/db_am.h: Updated. * db2/include/db_page.h: Updated. * db2/include/mp.h: Updated. * db2/include/queue.h: Updated. * db2/log/log.c: Updated. * db2/log/log_findckp.c: Updated. * db2/log/log_get.c: Updated. * db2/log/log_rec.c: Updated. * db2/mp/mp_bh.c: Updated. * db2/mp/mp_fopen.c: Updated. * db2/mp/mp_pr.c: Updated. * db2/mp/mp_sync.c: Updated. * db2/mutex/x86.gcc: Updated. * db2/os/db_os_dir.c: Updated. * db2/os/db_os_fid.c: Updated. * db2/progs/db_archive/db_archive.c: Updated. * db2/progs/db_checkpoint/db_checkpoint.c: Updated. * db2/progs/db_deadlock/db_deadlock.c: Updated. * db2/progs/db_dump/db_dump.c: Updated. * db2/progs/db_dump185/db_dump185.c: Updated. * db2/progs/db_load/db_load.c: Updated. * db2/progs/db_printlog/db_printlog.c: Updated. * db2/progs/db_recover/db_recover.c: Updated. * db2/progs/db_stat/db_stat.c: Updated. * db2/txn/txn.c: Updated. * db2/txn/txn_rec.c: Updated. * db2/Makefile: Add rule to build db_printlog. * db2/config.h: Don't include endian.h and don't define WORDS_BIGENDIAN. Only define HAVE_ENDIAN_H. * elf/dl-open.c (_dl_open): Make thread-safe. * elf/dl-close.c (_dl_close): Likewise. * elf/dlclose.c: Pretty print. * elf/dl-version.c (make_string): Use __strdup not strdup. (find_needed): Don't use l_searchlist of _dl_loaded, use the l_next list. * elf/dl-deps.c (_dl_map_object_deps): Remove variable head. * manual/math.texi: Add note about == and != for FP values. * manual/message.texi: Mention problems with relative paths and binstextdomain. * manual/string.texi: Mark strdupa and strndupa correctly as macros. * sunrpc/Makefile (CFLAGS-xkey_prot.c): Define to prevent warnings. * sunrpc/rpc_cout.c: Avoid needless races around return value. * sysdeps/generic/stpcpy.c: Include if wanted. Update from tzdata-1997h. * time/africa: Updated. * time/europe: Updated. * time/iso3166.tab: Updated. * time/northamerica: Updated. * time/southamerica: Updated. * time/zone.tab: Updated. 1997-09-04 13:19 Richard Henderson * sysdeps/alpha/w_sqrt.S: Removed. * sysdeps/alpha/fpu/e_sqrt.c: New. Obey -mieee and -mieee-with-inexact and build a version that is as fast as possible given the constraint. 1997-08-30 Andreas Jaeger * manual/maint.texi: Document some defaults for configuration parameters. 1997-09-04 15:57 Ulrich Drepper * termios/cfsetspeed.c (cfsetspeed): Change return value to int. * termios/termios.h: Change prototype accordingly. Reported by Andreas Jaeger . 1997-07-26 14:42 H.J. Lu * libio/stdfiles.c (_libio_using_thunks): Define if _G_USING_THUNKS is defined. * libio/_G_config.h: Moved to ... * sysdeps/generic/_G_config.h: ...here. * sysdeps/unix/sysv/linux/_G_config.h: New, Add vtable thunks support. 1997-09-02 Andreas Schwab * sysdeps/m68k/Makefile (pic-ccflag): Override it for more efficient code (together with a change in gcc). * Makeconfig (pic-ccflag): New variable. (CFLAGS-.os): Use it instead of hardcoding -fPIC. 1997-09-02 Andreas Schwab * sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use _dl_start instead of a local label, to avoid getting an unreadable label name. 1997-09-02 Andreas Schwab * nss/Makefile ($(objpfx)libnss_db.so): Use $(dbobjdir) to find libdb.so. * Makeconfig (dbobjdir): Use db2. 1997-08-31 Andreas Schwab * manual/maint.texi (Porting to Unix): Update description of the implementation of Unix system calls. (Contributors): Use real umlaut in tege's name. 1997-08-30 Andreas Schwab * sysdeps/libm-ieee754/w_gamma.c: Make compilable with _IEEE_LIBM. * sysdeps/libm-ieee754/w_gammaf.c: Likewise. * sysdeps/libm-ieee754/w_gammal.c: Likewise. --- elf/dl-close.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) (limited to 'elf/dl-close.c') diff --git a/elf/dl-close.c b/elf/dl-close.c index 7e851cd..fa9e92c 100644 --- a/elf/dl-close.c +++ b/elf/dl-close.c @@ -1,5 +1,5 @@ -/* _dl_close -- Close a shared object opened by `_dl_open'. - Copyright (C) 1996 Free Software Foundation, Inc. +/* Close a shared object opened by `_dl_open'. + Copyright (C) 1996, 1997 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -23,8 +23,14 @@ #include #include #include +#include +/* During the program run we must not modify the global data of + loaded shared object simultanously in two threads. Therefore we + protect `dlopen' and `dlclose' in dlclose.c. */ +__libc_lock_define (extern, _dl_load_lock) + #define LOSE(s) _dl_signal_error (0, map->l_name, s) void @@ -36,10 +42,16 @@ _dl_close (struct link_map *map) if (map->l_opencount == 0) LOSE ("shared object not open"); + /* Acquire the lock. */ + __libc_lock_lock (_dl_load_lock); + /* Decrement the reference count. */ if (--map->l_opencount > 0 || map->l_type != lt_loaded) - /* There are still references to this object. Do nothing more. */ - return; + { + /* There are still references to this object. Do nothing more. */ + __libc_lock_unlock (_dl_load_lock); + return; + } /* Notify the debugger we are about to remove some loaded objects. */ _r_debug.r_state = RT_DELETE; @@ -114,4 +126,7 @@ _dl_close (struct link_map *map) /* Notify the debugger those objects are finalized and gone. */ _r_debug.r_state = RT_CONSISTENT; _dl_debug_state (); + + /* Release the lock. */ + __libc_lock_unlock (_dl_load_lock); } -- cgit v1.1