* doc/libtool.texi (Thread Safety in libltdl): New node describing
the application the new MT API.
* libltdl/ltdl.h: Prototypes.
* libltdl/ltdl.c: Use these functions throughout the rest of
the file to provide thread locking.
(lt_dlmutex_register): New function to set callbacks for
multi-threaded calls into libltdl.
(lt_dl_mutex_lock): Type of a locking callback function.
(lt_dl_mutex_lock): Type of an unlocking callback function.
(lt_dl_mutex_seterror): Type of a callback function to save the
last libltdl error message in thread local storage.
(lt_dl_mutex_geterror): Type of a callback function to retrieve
the last saved error message from thread local storage.
don't sweat -- it may be a lib that is already statically linked
into the loading application.
* libltdl/ltdl.c: Clean up the shadowing of the global handles
variable.
(LT_DLRESIDENT_FLAGS): Add extra parens to satisfy -Wall.
(load_deplibs): Cast isspace() argument to an int to satisfy
-Wall.
* doc/libtool.texi (User defined module data): Document it all.
* ltdl.m4: Check for memcpy, or else bcopy.
* ltdl.c (lt_caller_data): New type.
(lt_dl_handle_struct): Add an lt_caller_data field.
(lt_dlcaller_register, lt_dlcaller_set_data,
lt_dlcaller_get_data): New functions.
(rpl_memcpy): A minimal fallback implementation.
(rpl_realloc): A realloc implemented with lt_dlmalloc and
lt_dlfree.
(LT_DLMALLOC, LT_DLFREE, LT_DLREALLOC, LT_DLMEM_REASSIGN):
New memory handling convenience macros. Use them
appropriately throughout the rest of this file.
* ltdl.h (lt_dlcaller_register, lt_dlcaller_set_data,
lt_dlcaller_get_data): Prototyped.
* libltdl/ltdl.h (lt_dlmakeresident, lt_dlisresident): Add
prototypes.
(LT_DLERROR_CLOSE_RESIDENT_MODULE): New error status.
* libltdl/ltdl.c (lt_dlmakeresident, lt_dlisresident): Allow
making and testing of resident module status, which prevents a
module from being lt_dlclosed.
(lt_dlopen): If lt_dlopen()ing self, make the module resident.
(lt_dlclose): Return an error if the module is resident.
for modules. If the named module has no directory component,
always start the search with the user_search_path directories,
and then fall back on the current directory only if that fails.
ending in ``_t'') to deprecated #define compatibility macros.
Also ease up on the namespace pollution, so that only ``lt_''
and ``LT_'' prefixes are taken from the global namespace.
* ltdl.h: ditto.
far cleaner to use lt_dlforeach and lt_dlgetinfo.
* libltdl/ltdl.h: Prototype deleted.
* doc/libtool.texi: Documentation deleted.
* NEWS: annoncement deleted.
* doc/libtool.texi (Libltdl interface): Moved user defined module
loader documentation from here...
(Module loaders for libltdl) ...to here, and updated the text and
added examples.
* ltdl.m4 (AC_CHECK_FUNCS): check strcmp for lt_find_dlloader.
* libltdl/ltdl.h: Reformatted and commented for readability.
(struct lt_user_dlloader): New data type for passing
initialisation pointers to lt_add_dlloader.
(LTDL_ERROR_INVALID_LOADER): New error message when non loader
handles are passed to the user loader API.
(LTDL_ERROR_INIT_LOADER): New error when loader initialisation
fails.
(LTDL_ERROR_REMOVE_LOADER): New error when loader removal fails.
(lt_module_open_t): renamed from lt_lib_open_t.
(lt_module_close_t): renamed from lt_lib_close_t.
(lt_dlloader_exit_t): renamed from lt_dlloader_exit_t.
* libltdl/ltdl.c: Reordered builtin loaders so that the "dld"
loader no longer occurs before "dlopen" on some platforms and
after it on others.
(lt_dlloader_t): Moved here from ltdl.h, added a field,
"loader_name", for identifying the loader, and renamed from
lt_dltype_t. Renamed type variables to loader IFF of type
lt_dlloader_t.
(lt_module_t): Renamed from lt_syshandle. Renamed handle variables
to module IFF of type lt_module_t.
(LTDL_TYPE_TOP): Deleted. No longer required.
(sys_dl): Initialised as a struct lt_user_dlloader.
(sys_dl_init): Deleted. No longer required.
(sys_dl_exit): Ditto.
(sys_shl): Initialised as a struct lt_user_dlloader.
(sys_shl_init): Deleted. No longer required.
(sys_shl_exit): Ditto.
(sys_wll): Initialised as a struct lt_user_dlloader.
(sys_wll_init): Deleted. No longer required.
(sys_wll_exit): Ditto.
(sys_bedl): Initialised as a struct lt_user_dlloader.
(sys_bedl_init): Deleted. No longer required.
(sys_bedl_exit): Ditto.
(sys_dld): Initialised as a struct lt_user_dlloader.
(sys_dld_init): Deleted. No longer required.
(sys_dld_exit): Ditto.
(sys_presym): Initialised as a struct lt_user_dlloader.
(lt_mod_init_t): Moved to here from ltdl.h.
(lt_dlinit): Add builtin loaders using the user loader API.
(lt_dlexit): Unregister and free all loaders.
(lt_add_dlloader): New function to add a new module loader after the
loader specified in the argument.
(lt_remove_dlloader): New function to remove a module loader.
(lt_next_dlloader): New function for iterating over module loaders.
(lt_dlloader_name): Accessor function for name of dlloader.
(lt_find_dlloader): New function to get a reference to a registered
module loader.
(strcmp): static implementation incase the host has none.
(lt_dlgettypes, lt_dlsettypes): Removed.
and app_private pointers from lt_dlhandle_t
* libltdl/ltdl.c (presym_add_list): new preloaded symbols
don't need to be added to the end
* libltdl/ltdl.c (lt_dlgetdata, lt_dlsetdata): removed
* libltdl/ltdl.h: ditto
* doc/libtool.texi (libltdl interface): ditto
* doc/libtool.texi (Libltdl interface): Document new entry
points.
* libltdl/ltdl.c (lt_dladderror): New function to add a user
defined error message to the tables used by lt_dlerror().
(lt_dlseterror): New function to allow setting of last_error by
user modules.
(ltdl_error_strings): New preprocessor generated table of internal
error diagnostic strings.
(user_error_strings): New internal list of registered user error
diagnostic strings.
(throughout!): Use error messages from ltdl_error_strings.
* libltdl/ltdl.h (ltdl_error_table): New macro to tabulate
internal diagnostic error strings alongside enum keys.
* doc/libtool.texi (Libltdl interface): Document new entry
points.
* libltdl/ltdl.c (lt_dltype_t): Use new type definitions for
existing fields.
(lt_dladdtype): New function to add a new ltdl dynamic loader
type to the end of the list of valid types..
(lt_dlgettypes): New function to return the complete list of ltdl
dynamic loader types.
(lt_dlsettypes): New function to replace the list of ltdl dynamic
loader types entirely -- e.g. to prepend a new type to the
existing list.
(sys_dl_open, sys_dl_close, sys_dl_sym): Work with lt_syshandle..
(sys_shl_open, sys_shl_close, sys_shl_sym): ditto.
(sys_dld_open, sys_dld_close, sys_dld_sym): ditto.
(sys_wll_open, sys_wll_close, sys_wll_sym): ditto.
(sys_bedl_open, sys_bedl_close, sys_bedl_sym): ditto.
(presym_open, presym_close, presym_sym): ditto.
(tryall_dlopen): Call lt_lib_open_t functions lt_syshandle
compatibly.
(lt_dlclose): Call lt_lib_close_t functions lt_syshandle
compatibly.
(lt_dlsym): Call lt_find_sym_t functions lt_syshandle compatibly.
(lt_dltype_t): moved type declaration from here...
* libltdl/ltdl.h (lt_dltype_t): ...to here.
(lt_syshandle): new type for low level system handles passed by
loader functions
(lt_mod_init_t): New type for functions implementing the
initialisation for an ltdl dynamic loader.
(lt_mod_exit_t): Type of exit functions for the same.
(lt_lib_open_t): Type of loader functions for the same.
(lt_lib_close_t): Type of unloader functions for the same.
(lt_find_sym_t): Type of symbol resolver functions for the same.
programs, libraries and objects, allow linking of shared libraries
against static libraries/objects on platforms that support it
but print a warning, fix some typos
* partially revert my previous change and
update only copyright notices of files that were actually modified
* NEWS: update
* libltdl/Makefile.am: version number was wrong
* libltdl/ltdl.c (tryall_dlopen): revert Gary's change
since it breaks dlpreopening
* ltdl.m4: ditto
* libltdl/ltdl.c (sys_search_path): search in the system default
library search path, too
* ltdl.m4 (AC_LTDL_SYSSEARCHPATH): extract the path
* libltdl/ltdl.c (find_module): remove bogus file_not_found_error
* libltdl/ltdl.c (load_deplibs): implement loading of dependency
libraries
* libltdl/ltdl.c (unload_deplibs): implement unloading of dependency
libraries
* libltdl/ltdl.c (lt_dlexit): correctly close all modules and
their dependencies
* libltdl/ltdl.c (lt_dlforeach): new function
* libltdl/ltdl.h: ditto
* doc/libtool.texi (using libltdl): document it
* libtool.m4: reformatting, only add -I$topsrc_dir/libltdl to
INCLTDL
* libtoolize.in: reformatting
* ltconfig.in: reformatting
* ltmain.in: reformatting
* mdemo/configure.in: AC_SUBST INCLTDL
* mdemo/Makefile.am: use INCLTDL
* tests/Makefile.am: reexport OBJEXT and EXEEXT
* tests/dryrun.test: use them for building main.obj and mdemo.exe
wrapping other macros to make a portable compound statement from
multiple C statements in the expansion.
(LTDL_SET_PRELOADED_SYMBOLS): Use the above macros to add an
extern declaration for lt_preloaded_symbols, to remove
dependency on undefined symbol from libltdl.dll on cygwin (and
other -no-undefined architectures).
* libltdl/ltdl.c (lt_preloaded_symbols): No longer defined here.
* doc/libtool.texi (using libltdl): document new lt_dlinfo struct,
replace NULL with @code{NULL}, document lt_dlsetdata(),
lt_dlgetdata() and lt_dlgetinfo()
* libltdl/Makefile.am: increment interface version number
* libltdl/configure.in: set version number to 1.1
* libltdl/ltdl.c: make some variables public by moving them
to the info struct, add support for application specific data
within module handles, new lt_dlsetdata(), lt_dlgetdata() and
lt_dlgetinfo() functions,
fix memory leaks, minor cleanups
* libltdl/ltdl.h: ditto
* mdemo/main.c: demonstrate use of lt_dlgetinfo,
improved handling of errors
* ltconfig.in: set hardcode_into_libs = yes for GNU/Hurd, Linux
and Solaris, only hardcode *all* run-paths if hardcode_into_libs
is set to 'all', otherwise hardcode only user-specified rpaths
into libraries
* ltmain.in: minor cleanups, we don't need to add user-specified
rpaths to compile_rpath, finalize_rpath is sufficient
* ltconfig.in: transform linux* -> *linux-gnu* _after_ host_os has
been set! (reported by Bruno Haible <haible@ilog.fr>)
* configure.in: AC_SUBST reload_flag, deplibs_check_method
and file_magic_cmd
* README: use 'libtool --version' instead of 'ltconfig --version'
(suggested by Francios Pinard <pinard@iro.umontreal.ca>
not compiling for a Windows target.
* libltdl/ltdl.c (canonicalize_path): New function to
ensure internal paths use '/' directory separators.
(find_file): use canonicalize_path. Memory management
changed to cope.
(lt_dlopen): ditto.
(free_vars): Removed `dir' and `name', which are now handled
internally.
as suitable for the target host.
(LTDL_PATHSEP_CHAR): Similarly with ':' or ';'.
* libltdl/ltdl.c: Use LTDL_DIRSEP_CHAR and LTDL_PATHSEP_CHAR
instead of hardcoding throughout.
Reported by Jon Leichter <jon@symas.com>
* libltdl/Makefile.am: Use -no-undefined for dll compliance.
* libltdl/configure.in: Use AC_LIBTOOL_WIN32_DLL for dll
compliance.
* libltdl/ltdl.c: Define and use LTDL_GLOBAL_DATA to correctly
export global data symbols from libtldl.dll.
* libltdl/ltdl.h: Define and use LTDL_SCOPE to declare data
symbols as dllexport, dllimport or plain ornary extern depending
in the context in which it is used.
* THANKS: added Olly Betts and Pavel Roskin
* doc/libtool.texi: fix typo
* fix major bugs which rendered libtool virtually
unusable (i.e. not portable):
* ltconfig.in: don't hardcode system dependent variables in ltconfig!!
but set sane defaults
* Makefile.am: pass variables from AC_LIBTOOL_SETUP to ltconfig
* libtool.m4: ditto, fix typo in AC_PROG_LD_RELOAD_FLAG
* ltconfig.in: use old_deplibs for archives, too
remove second occurence of sysv5
* ltmain.in: fix typo, fix the second occurence of -DPIC, too
* libltdl/Makefile.am: increment version number, fix typo
* libltdl/ltdl.c (lt_dlsym): don't report an error if the
libltdl-style symbol name wasn't found
* ltconfig.in: add support for Unixware (sysv4.2uw2*)
fail if it is unable to physically load the library. Sadly,
LoadLibrary will search the loaded libraries for a match and
return one of them if the path search load fails. Simulate a
failure in this case for compatibility with the other APIs.
Also, LoadLibrary takes the liberty of adding `.dll' to library
names passed without an extension, we now add a trailing `.' to
prevent this from happening.
decided that LoadLibrary returns `0' for success, yet FreeLibrary
returns `0' for failure! The FreeLibrary call used to interpret
`0' as success for both functions.
* cdemo/main.c: "Welcome _to_ ..."
* mdemo/main.c: ditto
* libltdl/configure.in: support multiple dlopening mechanisms
at once
* libltdl/ltdl.c: prefix system dependent functions with "sys_"
to avoid symbol conflicts (libdld didn't work)
* libtool.m4 (AC_LIBLTDL_*): set INCLTDL to the path of ltdl.h
* ltconfig.in: check for dlopen with -ldl first
* libltdl/ltdl.c (shl_close, shl_sym): use (shl_t *) instead of shl_t
* ltconfig.in (check for gcc): removed a bogus line,
check for shl_load in libdld
* ltmain.in: added a warning to the header of the .la file
to warn users against deleting the file,
link shared against static libraries if
deplibs_check_method == pass_all
* README: updated (BeOS support, no longer shared libraries
support for AmigaOS), cleanups, we have now two mailing lists
* REAMDE-alpha: autogen -> bootstrap, we have now two mailing lists
* THANKS: added Xavier Pianet
* doc/PLATFORMS: BeOS works
* doc/libtool.texi: we have now to two mailing lists,
updated -dlopen self documentation, documented libltdl's license,
put each author in a separate line,
inter-library dependencies on uninstalled libtool libraries are
now supported, cleanups and minor corrections
* libltdl/COPYING.LIB: new file
* libltdl/ltdl.[ch]: added special exception to the LGPL license
* libtool.spec: removed, it was outdated
* Makefile.am: removed libtool.spec
* ltmain.in: use TMPDIR when possible, create a subdirectory
in the temporary directory, added -export-symbols-regex to the help,
* doc/PLATFORMS: Erez Zadok reported that libtool works on bsdi 4.0.1
* doc/libtool.texi (libltdl): libltdl supports BeOS
* libltdl/ltdl.c: shlib_ext was declared even if LTDL_SHLIB_EXT
didn't exist, partially reverted my previous patch: BeOS will
automatically search in ADDON_PATH
* ltmain.in: don't allow relative run-paths, fixed a typo in a warning,
ignore -dlopen self for libraries and objects,
only accept -L paths that exist, minor cleanups,
bugfix: add -lc for normal libraries, not convenicence libraries
removed offensive warnings/comments
* NEWS: improved support for BeOS and Cygwin
* TODO: ILD branch was merged, all internal variables and macros
are now documented
* demo/Makefile.am: use $(LIBS) instead of -lm
* doc/libtool.texi: documented new variable hardcode_into_libs
and thread_safe_flag_spec, renamed all AM_ENABLE/DISABLE_* macros
to AC_*, documented AC_DISABLE_FAST_INSTALL and AC_LIBTOOL_DLOPEN
* libltdl/ltdl.c: added two new error messages (cannot_open_error,
cannot_close_error), use them where approriate,
BeOS support (thanks to Xavier Pianet), on BeOS search modules
additionally in ADDON_PATH
* libtool.m4: rewrote AC_CHECK_LIBM: BeOS and Cygwin don't have
libm and *-ncr-sysv4.3* requires libmw
* ltconfig.in: don't check for LoadLibrary, hardcode dlopen
configuration for BeOS and Cygwin
* ltmain.in: fix sourcing of .la files on Solaris
(patch by Raja R Harinath)
always configure libltdl, add libltdl/acinclude.m4 to
ACINCLUDE_M4_LIST, disable installation of libltdl if necessary
* libltdl/Makefile.am: set version info for libltdl.la
* libltdl/configure.in: don't check whether
enable_ltdl_convenience/install was set so that libltdl
can be used as independent package (libltdl.tar.gz) without
the need to use --enable-ltdl*
* libltdl/ltdl.c: minor cleanups, allocate the line cache
dynamically (lt_dlopen)
when dlopening the executable
* libtool.m4 (AC_LIBTOOL_DLOPEN): removed the redundant "yes: "
prefix for lt_cv_dlopen, renamed lt_cv_dlopen_LIBS
to lt_cv_dlopen_libs (more consistent)
* ltmain.in: implemented -dl[pre]open self, necessary for
lt_dlopen(NULL), generation of exported symbols was broken
* cdemo/foo1.c: renamed to foo.c
* libltdl/ltdl.c: eliminated lt_dltype, in presym_open():
search for @PROGRAM@ if filename == 0, in lt_dlopen():
fixed bug for filename == 0
* libltdl/ltdl.h: use __P macro for lt_dlmalloc/free
* libtool.m4: new macro AC_LIBTOOL_DLOPEN: checks for dlopen
and dlopen(NULL) support
* ltconfig.in: added new variables dlopen and dlopen_self,
--enable-dlopen[-self] flags for AC_LIBTOOL_DLOPEN
* ltmain.in: use dlopen[_self], dlpreopen files if there's no
dlopen support, build lt_preloaded_symbols only if
-dl[pre]open was used, include program symbols if -export-dynamic
was specified and there's no dlopen(NULL) support
* mdemo/configure.in: use AC_LIBTOOL_DLOPEN
* mdemo/main.c: demonstrate lt_dlopen(0)
* *demo/configure.in: use AC_CHECK_LIBM
* doc/libtool.texi: renamed file_magic_command to file_magic_cmd,
renamed archive_sym_cmds to archive_expsym_cmds
* ltconfig.in: ditto
* ltmain.in: ditto
* libltdl/ltdl.c: use lt_dlmalloc/free
* libltdl/ltdl.h: define lt_dlmalloc/free
* libtool.m4: added AC_CHECK_LIBM macro
* ltconfig.in: renamed archive_sym_cmds to archive_expsym_cmds,
added always_export_symbols, export_symbols_cmd, exclude_expsyms,
include_expsyms, removed archive_cmds for cygwin/mingw and AIX,
on Solaris store the exported symbols list in objdir
* ltmain.in: allow -export-symbols for modules, use thread_safe flag,
add include_expsyms to the exported symbols
* demo/Makefile.am: renamed hell.debug to hell.static
(we're demonstrating static linking, not debugging)
* tests/demo*: ditto
* doc/libtool.texi (libltdl): documented new lt_dlopen(NULL)
feature
* libltdl/acconfig.h: required for config.h
* libltdl/configure.in: use config.h
* libltdl/ltdl.c: use config.h, support lt_dlopen(NULL)
(returns a handle for the program itself)
* ltconfig.in: minor reformatting
* ltmain.in: in lt_preloaded_symbols always define
the program's symbols first, for -export-dynamic list all
program symbols together, -export-symbols was broken for
programs, minor reformatting
* mdemo/Makefile.am: renamed mdemo.debug to mdemo.static
* tests/mdemo*: ditto, mdemo.test was completely broken
Reported by Godmar Back <gback@cs.utah.edu>
1999-02-04 Godmar Back <gback@cs.utah.edu>
* libltdl/ltdl.c (lt_dlopenext): missing space for terminator when
allocating memory for shlib_ext
that all calls to malloc() are properly cast
(strdup, strchr, strrchr, trim, free_vars): declare as inline
(find_module): allocate filename dynamically; support null dir
(free_vars): free dir and name only if non-null
(lt_dlopen): keep dir as NULL if not given; fix expression that
calculated the size of name; only free and name if non-null
(lt_dlopenext): allocate tmp dynamically
* demo/configure.in: likewise
* depdemo/configure.in: likewise
* libltdl/configure.in: likewise
* mdemo/configure.in: likewise
* libltdl/ltdl.c: in find_module() check whether libdir is defined,
tryall_dlopen(): move deallocation of an already opened handle
to lt_dlopen(), allocate the directory in lt_dlopen() dynamically,
minor cleanups, fixed memory leak (name)
* libtool.m4: renamed all AM_ macros to AC_ and added aliases for
compatibilty, updated AC_SYS_NM_PARSE (no undefined symbols,
don't count the symbols)
* ltconfig.in: added thread_safe_flag_spec (not used yet),
added generic variable for linker options "linkopts" in
all archive_cmds
* ltmain.in: added -thread-safe flag (unused)
added function lt_dlopenext(), removed reference to
LTDL_PRELOADED_SYMBOLS in LTDL_SET_PRELOADED_SYMBOLS
* libltdl/ltdl.c: partially reverted Alexandre's dynamic string
allocation change (it was not necessary and the code was unreadable),
cleanups, removed usr_search_path_size, renamed usr_search_path
to user_search_path, in find_module() also check for moved
modules, merged find_file() and find_library(),
added lt_dlopenext(), in lt_dladdsearchdir() no longer reset
the search path if 'search_dir' == NULL and don't use realloc()
(might not be available on all platforms),
removed __P((void)) in the declaration of lt_dlgetsearchpath()
* libltdl/ltdl.h: added lt_dlopenext()
* ltconfig.in: AIX archive commands were broken,
fixed a MAJOR bug in global_symbol_pipe which caused
"demo-shared.test;demo-make.test" to fail (libtool must not extract
undefined symbols of libraries, i.e. symcode must not contain 'U')
* tests/Makefile.am (clean-local): "make distclean" in cdemo, too
handle, don't reset its name nor add it to the list, and free the
name we have allocated
Reported by Edouard G. Parmelan <Edouard.Parmelan@France.NCR.COM>
extension
* libltdl/ltdl.c (lt_dlopen): if a .la file name is given, that's
all. Otherwise, lt_dlopen now tries to append .la first. If this
fails, it tries the given filename, and, at last, tries to append
the native library extension to the given filename.
* doc/libtool.texi (lt_dlopen): explain new lookup strategy
* mdemo/configure.in (AC_C_CONST): ditto
* libltdl/configure.in (AC_C_CONST, AC_C_INLINE): ditto
* libltdl/ltdl.c (LTDL_FILENAME_MAX): use FILENAME_MAX if defined
(FILENAME_MAX): replace all explicit uses with LTDL_FILENAME_MAX
(presym_free_symlists, trim): don't return void, for portability
(lt_dlgetsearchpath): replace (void) with __P((void))
HAVE_PRELOADED_SYMBOLS): test whether we support -dl*open
* libltdl/ltdl.c (!HAVE_PRELOADED_SYMBOLS, lt_preloaded_symbols):
define it to an empty list if libtool won't generate it, so as to
avoid link errors. This will cause silent dlopening failures, but
maybe this is better than failing to link the program...
without arguments, that calls lt_dlpreopen_default_ with
lt_dlpreloaded_symbols
* libltdl/ltdl.c (lt_dlpreopen_default_): renamed from
lt_dlpreopen_default
system-dependent extension of shared libraries
(libltdl_cv_shlibpath_var, LTDL_SHLIBPATH_VAR): system-dependent
run-time shared library search path
* libltdl/ltdl.c (dldpre_init, dldpre_exit): unrelate init/exit
from add/remove symlists, so one may add dld_preloaded_symbols
from main(), when only a library will call dldpre_init
(lt_dlopen): use LTDL_SHLIBPATH_VAR, if defined, as secondary
search path. Also, if a requested .la file cannot be found, try
with the LTDL_SHLIB_EXTension instead.
and don't redefine it if already defined; default to 1024, as on
most systems
(LT_SYMBOL_LENGTH): renamed from MAX_SYMBOL_LENGTH
(LT_SYMBOL_OVERHEAD): new macro, that accounts for the size of
the _LTX_ separator and the initial underscore
(lt_dlsym): sym now points to a stack buffer (lsym) if possible,
or is dynamically allocated. If allocation fails, a
buffer_overflow_error is returned.
old-fashioned archive, use a copy of libobjs saved before
convenience libraries are appended
* libltdl/ltdl.h (_LTDLL_EXPORT, _LTDLL_IMPORT): use cygwin or
unix library import/export primitives; this may be convenient for
people willing to create DLLs
(_LTDLL_EXTERN): select _LTDLL_EXPORT or _LTDLL_IMPORT depending
on _LTDL_COMPILE_
* libltdl/ltdl.h, libltdl/ltdl.c (lt_dlpreopen): new function,
that replaces the current preloaded_symbols list with its
argument, and returns the old value, initially NULL
(dldpre_init): don't refer to dld_preloaded_symbols any more
(dldpre_open, dldpre_sym): search preloaded_symbols
(lt_dlpreopen_default): call lt_dlpreopen with
dld_preloaded_symbols, that is declared as extern; it should be
called from the main program or from some static library without
-no-undefined
(lt_dlerror): new function, that returns the error message for the
last error occurred; the error message is kept in the static
variable last_error
* libltdl/configure.in (enable-ltdl-install): moved back from
enable-install; other packages might use enable-install already,
better have fine grained control over this.
* libltdl/Makefile.am (libltdls.la): discarded
* libltdl/Makefile.am (CFLAGS): ditto
* libltdl/configure.in: check for memory.h, rindex() and
dlpreopening. Fixed NEED_USCORE caching policy.
* libltdl/ltdl.h (lt_dlsym): make the name argument const
* libltdl/ltdl.c (types): new variable: head of list of available
dlopening mechanisms
(lt_dltype_t): interface of a dlopening mechanism, with pointers
to functions for init, exit, open, close and sym
(lt_dlhandle_t): added pointer to interface type
(strdup): don't name it strdup; it can be troublesome
(strrchr): ditto; use rindex if available
(LIBTOOL_STATIC): check HAVE_DLPREOPEN instead, and move to the
end of the file, so that it becomes the header of the list
(all): renamed all interface-implementation functions, to avoid
name clashes, and created lt_dltype_t nodes for all of them
(lt_dlinit): initialize all available interfaces; remove those
that fail from the list. Return failure only if no interfaces
could be initialized.
(lt_dlexit): return number of failures
(tryall_dlopen): try to open the library with all available
interfaces
(lt_dlopen): use tryall_dlopen; increased size of fixed buffers.
We should probably make these bound-checked or dynamically
allocated for the final release! Fix bug when filename did not
contain slashes; should we check for `\\' too? Try old_library if
everything else fails.
(lt_dlclose): use the interface type for closing
(lt_dlsym): make `symbol' const, use interface type for looking up
* mdemo/Makefile.am: moved mdemo/modules/* back into mdemo
(SUBDIRS): removed
(libfoo2_la_LDFLAGS): added -static; nice test. However, since it
causes -lm to linked into hell*, it causes tests that should fail
to pass
(noinst_HEADERS): no need to install foo.h
* mdemo/configure.in: remove modules/Makefile
tests/mdemo-exec.test: updated accordingly
* mdemo/Makefile.am: ../libltdl is within $(srcdir)
* libltdl, Makefile.am: added libltdl (a system independent
dlopen wrapper library extracted from mdemo)
* ltmain.in: added -module flag for compiling and linking of
modules. If enabled it compiles always both .o (with -DLT_RENAME)
and .lo files
* mdemo: modified mdemo to work with libltdl
* tests/ltdl*: added tests for libltdl
