glibc/dlfcn/dlfcn.h

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Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
/* User functions for run-time dynamic loading.
Copyright (C) 1995-1999,2000,2001,2003,2004,2006
Free Software Foundation, Inc.
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
#ifndef _DLFCN_H
#define _DLFCN_H 1
#include <features.h>
#define __need_size_t
#include <stddef.h>
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
/* Collect various system dependent definitions and declarations. */
#include <bits/dlfcn.h>
#ifdef __USE_GNU
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
/* If the first argument of `dlsym' or `dlvsym' is set to RTLD_NEXT
the run-time address of the symbol called NAME in the next shared
object is returned. The "next" relation is defined by the order
the shared objects were loaded. */
# define RTLD_NEXT ((void *) -1l)
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
/* If the first argument to `dlsym' or `dlvsym' is set to RTLD_DEFAULT
the run-time address of the symbol called NAME in the global scope
is returned. */
Update. * dlfcn/dlfcn.h (RTLD_DEFAULT): Don't use NULL. * iconv/iconv.h (iconv): Fix prototype. * misc/libgen.h: When using gcc using renaming feature to get XPG definition of basename. * misc/search.h (struct entry): Fix type of element data. * posix/unistd.h (getpagesize): Declare as const function. * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h: Define SA_NOCLDWAIT. * sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h: Likewise. * signal/signal.h [__USE_XOPEN]: Define uid_t. (sigstack): Correct type of first parameter. * sysdeps/generic/sigstack.c (sigstack): Likewise. * sysdeps/unix/sysv/linux/sigstack.c (sigstack): Likewise. * sysdeps/unix/sysv/linux/alpha/bits/siginfo.h: New file. Copy of old sysdeps/unix/sysv/linux/bits/siginfo.h. * sysdeps/unix/sysv/linux/sparc/sparc64/bits/siginfo.h: Likewise. * sysdeps/unix/sysv/linux/bits/siginfo.h [struct siginfo] (si_band): Change type to `long int'. * signal/signal.h [__USE_XOPEN]: Declare sigpause to redirect to __xpg_sigpause. * sysdeps/generic/sigpause.c: Define __xpg_sigpause. * sysdeps/posix/sigpause.c: Likewise. * conform/conformtest.pl: Correct bugs. Add more functionality. * conform/data/dlfcn.h-data: Correct typos. * conform/data/ftw.h-data: Likewise. * conform/data/iconv.h-data: Likewise. * conform/data/nl_types.h-data: Likewise. * conform/data/search.h-data: Likewise. * conform/data/semaphore.h-data: New file. * conform/data/setjmp.h-data: New file. * conform/data/signal.h-data: New file. * conform/data/stdarg.h-data: New file. * conform/data/stddef.h-data: New file. * conform/data/stdio.h-data: New file.
2000-02-23 07:02:09 +01:00
# define RTLD_DEFAULT ((void *) 0)
[BZ #77] Update. Add support for namespaces in the dynamic linker. * dlfcn/Makefile (libdl-routines): Add dlmopen. * dlfcn/Versions [libdl, GLIBC_2.3.4]: Add dlmopen. * dlfcn/dlfcn.h: Define Lmid_t, LM_ID_BASE, and LM_ID_NEWLM. Declare dlmopen. Document RTLD_DI_LMID. * dlfcn/dlinfo.c: Handle RTLD_DI_LMID. * dlfcn/dlmopen.c: New file. * dlfcn/dlopen.c: Pass new parameter to _dl_open. * dlfcn/dlopenold.c: Likewise. * elf/dl-addr.c: Adjust for removal of GL(dl_loaded). * elf/dl-caller.c: Likewise. * elf/dl-close.c: Likewise. * elf/dl-conflict.c: Likewise. * elf/dl-debug.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-sym.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-lookup.h: Likewise. * elf/rtld.c: Likewise. * sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise. * elf/dl-depsc: Likewise. Add new parameter to _dl_map_object. * elf/dl-fini.c: Call destructors in all namespaces. * elf/dl-iteratephdr.c: Compute total nloaded. Adjust for removal of GL(dl_loaded). * elf/dl-libc.c: Pass new parameter to _dl_open. Adjust for removal of GL(dl_loaded). * elf/dl-load.c (_dl_map_object_from_fd): Don't load ld.so a second time. Reuse the one from the main namespace in all others. Pass new parameter to _dl_new_object. Adjust for removal of GL(dl_loaded). * elf/dl-object.c: Take new parameter. Use it to initialize l_ns. Adjust for removal of GL(dl_loaded). * elf/dl-open.c (_dl_open): Take new parameter. Adjust for removal of GL(dl_loaded). * elf/dl-support.c: Replace global _dl_loaded etc variables with _dl_ns variable. * include/dlfcn.h: Adjust prototype of _dl_open. Define __LM_ID_CALLER. * include/link.h: Add l_real, l_ns, and l_direct_opencount elements. * sysdeps/generic/dl-tls.c: Bump TLS_STATIC_SURPLUS. Since libc is using TLS we need memory appropriate to the number of namespaces. * sysdeps/generic/ldsodefs.h (struct rtld_global): Replace _dl_loaded, _dl_nloaded, _dl_global_scope, _dl_main_searchlist, and _dl_global_scope_alloc with _dl_ns element. Define DL_NNS. Adjust prototypes of _dl_map_object and member in rtld_global_ro. * malloc/malloc.c: Include <dlfcn.h>. * malloc/arena.c (ptmalloc_init): If libc is not in primary namespace, never use brk. * elf/Makefile: Add rules to build and run tst-dlmopen1 and tst-dlmopen2. * elf/tst-dlmopen1.c: New file. * elf/tst-dlmopen1mod.c: New file. * elf/tst-dlmopen2.c: New file. * elf/dl-close.c: Improve reference counting by tracking direct loads. * elf/dl-lookup.c (add_dependency): Likewise. * elf/dl-open.c (dl_open_worker): Likewise. * elf/rtld.c (dl_main): Likewise. 2004-09-09 GOTO Masanori <gotom@debian.or.jp> [BZ #77] * elf/dl-close.c: Count down l_opencount to check not only for l_reldeps, but also l_initfini. 2004-10-13 Ulrich Drepper <drepper@redhat.com>
2004-10-14 04:08:23 +02:00
/* Type for namespace indeces. */
typedef long int Lmid_t;
/* Special namespace ID values. */
# define LM_ID_BASE 0 /* Initial namespace. */
# define LM_ID_NEWLM -1 /* For dlmopen: request new namespace. */
#endif
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
__BEGIN_DECLS
/* Open the shared object FILE and map it in; return a handle that can be
passed to `dlsym' to get symbol values from it. */
extern void *dlopen (__const char *__file, int __mode) __THROW;
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
/* Unmap and close a shared object opened by `dlopen'.
The handle cannot be used again after calling `dlclose'. */
extern int dlclose (void *__handle) __THROW __nonnull ((1));
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
/* Find the run-time address in the shared object HANDLE refers to
of the symbol called NAME. */
extern void *dlsym (void *__restrict __handle,
__const char *__restrict __name) __THROW __nonnull ((2));
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
#ifdef __USE_GNU
[BZ #77] Update. Add support for namespaces in the dynamic linker. * dlfcn/Makefile (libdl-routines): Add dlmopen. * dlfcn/Versions [libdl, GLIBC_2.3.4]: Add dlmopen. * dlfcn/dlfcn.h: Define Lmid_t, LM_ID_BASE, and LM_ID_NEWLM. Declare dlmopen. Document RTLD_DI_LMID. * dlfcn/dlinfo.c: Handle RTLD_DI_LMID. * dlfcn/dlmopen.c: New file. * dlfcn/dlopen.c: Pass new parameter to _dl_open. * dlfcn/dlopenold.c: Likewise. * elf/dl-addr.c: Adjust for removal of GL(dl_loaded). * elf/dl-caller.c: Likewise. * elf/dl-close.c: Likewise. * elf/dl-conflict.c: Likewise. * elf/dl-debug.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-sym.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-lookup.h: Likewise. * elf/rtld.c: Likewise. * sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise. * elf/dl-depsc: Likewise. Add new parameter to _dl_map_object. * elf/dl-fini.c: Call destructors in all namespaces. * elf/dl-iteratephdr.c: Compute total nloaded. Adjust for removal of GL(dl_loaded). * elf/dl-libc.c: Pass new parameter to _dl_open. Adjust for removal of GL(dl_loaded). * elf/dl-load.c (_dl_map_object_from_fd): Don't load ld.so a second time. Reuse the one from the main namespace in all others. Pass new parameter to _dl_new_object. Adjust for removal of GL(dl_loaded). * elf/dl-object.c: Take new parameter. Use it to initialize l_ns. Adjust for removal of GL(dl_loaded). * elf/dl-open.c (_dl_open): Take new parameter. Adjust for removal of GL(dl_loaded). * elf/dl-support.c: Replace global _dl_loaded etc variables with _dl_ns variable. * include/dlfcn.h: Adjust prototype of _dl_open. Define __LM_ID_CALLER. * include/link.h: Add l_real, l_ns, and l_direct_opencount elements. * sysdeps/generic/dl-tls.c: Bump TLS_STATIC_SURPLUS. Since libc is using TLS we need memory appropriate to the number of namespaces. * sysdeps/generic/ldsodefs.h (struct rtld_global): Replace _dl_loaded, _dl_nloaded, _dl_global_scope, _dl_main_searchlist, and _dl_global_scope_alloc with _dl_ns element. Define DL_NNS. Adjust prototypes of _dl_map_object and member in rtld_global_ro. * malloc/malloc.c: Include <dlfcn.h>. * malloc/arena.c (ptmalloc_init): If libc is not in primary namespace, never use brk. * elf/Makefile: Add rules to build and run tst-dlmopen1 and tst-dlmopen2. * elf/tst-dlmopen1.c: New file. * elf/tst-dlmopen1mod.c: New file. * elf/tst-dlmopen2.c: New file. * elf/dl-close.c: Improve reference counting by tracking direct loads. * elf/dl-lookup.c (add_dependency): Likewise. * elf/dl-open.c (dl_open_worker): Likewise. * elf/rtld.c (dl_main): Likewise. 2004-09-09 GOTO Masanori <gotom@debian.or.jp> [BZ #77] * elf/dl-close.c: Count down l_opencount to check not only for l_reldeps, but also l_initfini. 2004-10-13 Ulrich Drepper <drepper@redhat.com>
2004-10-14 04:08:23 +02:00
/* Like `dlopen', but request object to be allocated in a new namespace. */
extern void *dlmopen (Lmid_t __nsid, __const char *__file, int __mode) __THROW;
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
/* Find the run-time address in the shared object HANDLE refers to
of the symbol called NAME with VERSION. */
extern void *dlvsym (void *__restrict __handle,
__const char *__restrict __name,
__const char *__restrict __version)
__THROW __nonnull ((2, 3));
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
#endif
/* When any of the above functions fails, call this function
to return a string describing the error. Each call resets
the error string so that a following call returns null. */
extern char *dlerror (void) __THROW;
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
#ifdef __USE_GNU
/* Structure containing information about object searched using
`dladdr'. */
typedef struct
{
__const char *dli_fname; /* File name of defining object. */
void *dli_fbase; /* Load address of that object. */
__const char *dli_sname; /* Name of nearest symbol. */
void *dli_saddr; /* Exact value of nearest symbol. */
} Dl_info;
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
/* Fill in *INFO with the following information about ADDRESS.
Returns 0 iff no shared object's segments contain that address. */
extern int dladdr (__const void *__address, Dl_info *__info)
__THROW __nonnull ((2));
/* Same as `dladdr', but additionally sets *EXTRA_INFO according to FLAGS. */
extern int dladdr1 (__const void *__address, Dl_info *__info,
void **__extra_info, int __flags) __THROW __nonnull ((2));
/* These are the possible values for the FLAGS argument to `dladdr1'.
This indicates what extra information is stored at *EXTRA_INFO.
It may also be zero, in which case the EXTRA_INFO argument is not used. */
enum
{
/* Matching symbol table entry (const ElfNN_Sym *). */
RTLD_DL_SYMENT = 1,
/* The object containing the address (struct link_map *). */
RTLD_DL_LINKMAP = 2
};
/* Get information about the shared object HANDLE refers to.
REQUEST is from among the values below, and determines the use of ARG.
On success, returns zero. On failure, returns -1 and records an error
message to be fetched with `dlerror'. */
extern int dlinfo (void *__restrict __handle,
int __request, void *__restrict __arg)
__THROW __nonnull ((1, 3));
/* These are the possible values for the REQUEST argument to `dlinfo'. */
enum
{
[BZ #77] Update. Add support for namespaces in the dynamic linker. * dlfcn/Makefile (libdl-routines): Add dlmopen. * dlfcn/Versions [libdl, GLIBC_2.3.4]: Add dlmopen. * dlfcn/dlfcn.h: Define Lmid_t, LM_ID_BASE, and LM_ID_NEWLM. Declare dlmopen. Document RTLD_DI_LMID. * dlfcn/dlinfo.c: Handle RTLD_DI_LMID. * dlfcn/dlmopen.c: New file. * dlfcn/dlopen.c: Pass new parameter to _dl_open. * dlfcn/dlopenold.c: Likewise. * elf/dl-addr.c: Adjust for removal of GL(dl_loaded). * elf/dl-caller.c: Likewise. * elf/dl-close.c: Likewise. * elf/dl-conflict.c: Likewise. * elf/dl-debug.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-sym.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-lookup.h: Likewise. * elf/rtld.c: Likewise. * sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise. * elf/dl-depsc: Likewise. Add new parameter to _dl_map_object. * elf/dl-fini.c: Call destructors in all namespaces. * elf/dl-iteratephdr.c: Compute total nloaded. Adjust for removal of GL(dl_loaded). * elf/dl-libc.c: Pass new parameter to _dl_open. Adjust for removal of GL(dl_loaded). * elf/dl-load.c (_dl_map_object_from_fd): Don't load ld.so a second time. Reuse the one from the main namespace in all others. Pass new parameter to _dl_new_object. Adjust for removal of GL(dl_loaded). * elf/dl-object.c: Take new parameter. Use it to initialize l_ns. Adjust for removal of GL(dl_loaded). * elf/dl-open.c (_dl_open): Take new parameter. Adjust for removal of GL(dl_loaded). * elf/dl-support.c: Replace global _dl_loaded etc variables with _dl_ns variable. * include/dlfcn.h: Adjust prototype of _dl_open. Define __LM_ID_CALLER. * include/link.h: Add l_real, l_ns, and l_direct_opencount elements. * sysdeps/generic/dl-tls.c: Bump TLS_STATIC_SURPLUS. Since libc is using TLS we need memory appropriate to the number of namespaces. * sysdeps/generic/ldsodefs.h (struct rtld_global): Replace _dl_loaded, _dl_nloaded, _dl_global_scope, _dl_main_searchlist, and _dl_global_scope_alloc with _dl_ns element. Define DL_NNS. Adjust prototypes of _dl_map_object and member in rtld_global_ro. * malloc/malloc.c: Include <dlfcn.h>. * malloc/arena.c (ptmalloc_init): If libc is not in primary namespace, never use brk. * elf/Makefile: Add rules to build and run tst-dlmopen1 and tst-dlmopen2. * elf/tst-dlmopen1.c: New file. * elf/tst-dlmopen1mod.c: New file. * elf/tst-dlmopen2.c: New file. * elf/dl-close.c: Improve reference counting by tracking direct loads. * elf/dl-lookup.c (add_dependency): Likewise. * elf/dl-open.c (dl_open_worker): Likewise. * elf/rtld.c (dl_main): Likewise. 2004-09-09 GOTO Masanori <gotom@debian.or.jp> [BZ #77] * elf/dl-close.c: Count down l_opencount to check not only for l_reldeps, but also l_initfini. 2004-10-13 Ulrich Drepper <drepper@redhat.com>
2004-10-14 04:08:23 +02:00
/* Treat ARG as `lmid_t *'; store namespace ID for HANDLE there. */
RTLD_DI_LMID = 1,
/* Treat ARG as `struct link_map **';
store the `struct link_map *' for HANDLE there. */
RTLD_DI_LINKMAP = 2,
RTLD_DI_CONFIGADDR = 3, /* Unsupported, defined by Solaris. */
/* Treat ARG as `Dl_serinfo *' (see below), and fill in to describe the
directories that will be searched for dependencies of this object.
RTLD_DI_SERINFOSIZE fills in just the `dls_cnt' and `dls_size'
entries to indicate the size of the buffer that must be passed to
RTLD_DI_SERINFO to fill in the full information. */
RTLD_DI_SERINFO = 4,
RTLD_DI_SERINFOSIZE = 5,
/* Treat ARG as `char *', and store there the directory name used to
expand $ORIGIN in this shared object's dependency file names. */
RTLD_DI_ORIGIN = 6,
RTLD_DI_PROFILENAME = 7, /* Unsupported, defined by Solaris. */
RTLD_DI_PROFILEOUT = 8, /* Unsupported, defined by Solaris. */
/* Treat ARG as `size_t *', and store there the TLS module ID
of this object's PT_TLS segment, as used in TLS relocations;
store zero if this object does not define a PT_TLS segment. */
RTLD_DI_TLS_MODID = 9,
/* Treat ARG as `void **', and store there a pointer to the calling
thread's TLS block corresponding to this object's PT_TLS segment.
Store a null pointer if this object does not define a PT_TLS
segment, or if the calling thread has not allocated a block for it. */
RTLD_DI_TLS_DATA = 10,
RTLD_DI_MAX = 10,
};
/* This is the type of elements in `Dl_serinfo', below.
The `dls_name' member points to space in the buffer passed to `dlinfo'. */
typedef struct
{
char *dls_name; /* Name of library search path directory. */
unsigned int dls_flags; /* Indicates where this directory came from. */
} Dl_serpath;
/* This is the structure that must be passed (by reference) to `dlinfo' for
the RTLD_DI_SERINFO and RTLD_DI_SERINFOSIZE requests. */
typedef struct
{
size_t dls_size; /* Size in bytes of the whole buffer. */
unsigned int dls_cnt; /* Number of elements in `dls_serpath'. */
Dl_serpath dls_serpath[1]; /* Actually longer, dls_cnt elements. */
} Dl_serinfo;
#endif /* __USE_GNU */
Update. * sysdeps/gnu/Makefile (libdl-routines): Add eval. 1999-07-06 Zack Weinberg <zack@rabi.columbia.edu> * dlfcn: New directory. Move the following files from elf: dladdr.c, dlclose.c, dlerror.c, dlfcn.h, dlopen.c, dlopenold.c, dlsym.c, dlvsym.c. * dlfcn/Makefile: New file. * dlfcn/Versions: New file. * dlfcn/dlsym.c: All ELF-specific code split out to new function _dl_sym. * dlfcn/dlvsym.c: All ELF-specific code split out to new function _dl_vsym. * elf/dl-sym.c: New file. _dl_sym and _dl_vsym are implemented here. * dlfcn/dladdr.c: Remove all references to ELF data structures or headers. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * Makeconfig (dlfcn): New variable - set to `dlfcn' if elf is yes, empty otherwise. (libdl): Set to dlfcn/libdl.so or libdl.a if elf is yes, depending on build-shared. (subdirs): Add $(dlfcn). (rpath-dirs): Add dlfcn. * elf/Makefile: Remove all references to libdl or its components, except the ones relating to the test cases. (routines): Add dl-sym. * elf/Versions (libc): Add _dl_sym and _dl_vsym for GLIBC_2.2. (libdl): Delete. * elf/dl-close.c (_dl_close): Change argument to void *. * elf/dl-open.c (_dl_open): Change return type to void *. * elf/eval.c: Removed. * elf/ldsodefs.h: Move prototypes of _dl_catch_error, _dlerror_run, _dl_open, _dl_close, _dl_addr, and _dl_mcount_wrapper_check to include/dlfcn.h. Delete _CALL_DL_FCT macro. * include/dlfcn.h: Also prototype _dl_sym and _dl_vsym here. Include real header from dlfcn directory. * include/ldsodefs.h: Removed. * grp/initgroups.c: Use DL_CALL_FCT not _CALL_DL_FCT. * nss/getXXbyYY_r.c: Likewise. * nss/getXXent_r.c: Likewise. * iconv/gconv.c: Likewise. Don't include ldsodefs.h. * iconv/gconv_db.c: Likewise. Don't include ldsodefs.h. * iconv/skeleton.c: Don't include ldsodefs.h. * nss/nsswitch.h: Don't include ldsodefs.h. Include dlfcn.h. 1999-07-07 Ulrich Drepper <drepper@cygnus.com>
1999-07-07 20:39:33 +02:00
__END_DECLS
#endif /* dlfcn.h */