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diff --git a/ldso/README b/ldso/README new file mode 100644 index 000000000..025694ee3 --- /dev/null +++ b/ldso/README @@ -0,0 +1,860 @@ + +Apr 20, 2001 -- Manuel Novoa III + +Inital port for uClibc from debian ld.so_1.9.11-9.tar.gz. + +Removed a.out support. + +"make" generates the ld-linux-uclibc.so.1, libdl.so.1, ldd, ldconfig + suitable for the target platform. + +"make DEVEL=true" generates the same files, but ld-linux-uclibc.so.1 and + ldconfig are modified to not conflict with the devel platform system + libs. (This is only of use if TARGET_ARCH == NATIVE_ARCH.) These + modified versions ignore /lib and /usr/lib and look for shared libs + only in $(INSTALL_DIR)/lib. The modified ldconfig writes ld.so.cache + in $(INSTALL_DIR)/etc. + +The above assumes you've set the DYNAMIC_LINKER to /lib/ld-linux-uclibc.so.1 +in extra/gcc-uClibc/Makefile. + +Todo: + +Remove unneeded code in util/ldd.c. +Link against static uClibc instead of using custom routines. ??? +Lots more cleanup... especially the arch-dependent Makefiles. + +****************** original ld.so.lsm file ************************** +Begin3 +Title: Linux shared, dynamic linker and utilities. +Version: 1.9.11 +Entered-date: 01MAY99 +Description: This package contains ld.so, ld-linux.so, ldconfig, + ldd and libdl. +Keywords: dynamic linker, shared library, ld.so, ld-linux.so, + ldconfig, ldd, libdl +Author: david@ods.com (David Engel) +Maintained-by: david@ods.com (David Engel) +Primary-site: tsx-11.mit.edu /pub/linux/packages/GCC + ld.so-1.9.11.tar.gz +Alternate-site: sunsite.unc.edu /pub/Linux/GCC + ld.so-1.9.11.tar.gz +Platform: Linux 2.0.0 or later. +Copying-policy: Copyrighted but freely distributable. +End +********************************************************************* + Original README starts here +********************************************************************* + +This package contains my ELF dynamic linkers (ld-linux.so.1), dynamic +linker library (libdl.so.1) and utilities (ldconfig and ldd) for Linux. + +You need Linux kernel 2.0.0 or later with ELF support compiled in +(i.e. not loaded as a module) to use this package. + +The dynamic linker is used to bootstrap programs and load shared +libraries at startup. The dynamic linker library is used to +dynamically load shared libraries after a program is running. +Ldconfig is used to automatically update the symbolic links to shared +libraries and build the cache file used by the dynamic linker. Ldd is +used to list the shared libraries used by a program. + +Please see the included manual pages for further details. + +To install, simply run "sh instldso.sh" as root. Ready-to-go versions +of all end-products are provided so nothing should need to be compiled +or linked. If you are still using libc5 as your primary development +library, you should use the "--devfiles" option when running +instldso.sh to install the file needed to compile with libdl. + +ELF versions of gcc, binutils and libc are now required to compile +everything, including the old, unsupported, a.out dynamic linker. +Finally, an optimization level of O2 or higher must be used to compile +ld-linux.so and libdl.so due the use of inline functions. + +Notable contributors to this package include Eric Youngdale, Peter +MacDonald, Hongjiu Lu, Linus Torvalds, Lars Wirzenius, Mitch D'Souza, +Rik Faith, Andreas Schwab and Adam Richter (not necessarily in that +order). + +###################### IMPORTANT NOTICES ############################# + +A.OUT SUPPORT: + +As of ld.so-1.9.0, the old, a.out dynamic loader is no longer +officially supported. The code is still included and built, but I +make no promises that it will work. I will accept patches for it, +but they will not be tested by me. + +GLIBC (AKA LIBC6) SUPPORT: + +As of ld.so-1.9.0, the main focus of this package is to ease the +transition to libc6. No significant, new features are expected to be +added. If you need new features, switch to libc6. + +Except for libpthread.so, the sonames of the core libraries provided +with libc6 have been chosen so they do not conflict with those +provided by libc5 and ld.so. However, the current plan is not use +new, nonconflicting sonames for other libraries such as ncurses and +X11. This presents two problems. First, libraries using the same +soname for both libc5 and libc6 can not be placed in the same +directory. Second, the dynamic linkers need to make sure not to load +a library for the wrong version of libc. + +The first problem is easy. Just move the old, libc5-based libraries +to new directories (e.g. /lib/libc5-compat, /usr/lib/libc5-compat, +etc.) and add those directories to /etc/ld.so.conf. Then install the +new, libc6-based versions in the standard places. + +The second problem is more difficult. Ideally, the dynamic linkers +would be changed to perform a complete dependency analysis on every +library to be loaded to make sure the wrong versions aren't used. +This approach doesn't seem worth the added complexity, especially +since we now have symbol versioning for ELF libraries. Instead a +simpler approach will be used, at least initially. + +Ldconfig has been modified to perform a (currently simple) dependency +analysis on libraries and to store an indication in /etc/ld.so.cache +of whether a library is for libc5, libc6 or an unknown libc. The +dynamic linkers then only need to make a simple check at run-time to +make sure they don't load the wrong version of a library. + +The dynamic linker for libc5 provided in this package, has already +been modified to use the new information in /etc/ld.so.cache. For +glibc versions 2.0.1 and earlier, the dynamic linker for libc6 needs +the patch contained in glibc.patch. You should apply the patch and +rebuild glibc before using the new ldconfig. + +As stated above, the dependency analysis currently done by ldconfig is +rather simple. Basically, it looks for the sonames used by the +various versions of libc, libm and libdl. For any approach using a +dependency analysis such as this to work, it is very important that +shared libraries be built with complete dependency information. This +can be done by using the appropriate -l options when running 'gcc +-shared'. For example, when building libfoo.so which depends on libc +and libbar, you should add -lbar and -lc gcc command line. + +###################################################################### + +Changes in version 1.9.11: + + Fixed a bug in ld-linux.so where a reference to an + undefined symbol could cause a segfault. + + Added a clarification for LD_PRELOAD to the ld.so manual + page and added a symlink for ld-linux.so (Bug#33123). + + Don't install ldd for Debian except for the m68k arch + because glibc 2.1 now includes it (Bug#35458). + +Changes in version 1.9.10: + + Changed ldconfig to issue a warning and not overwrite a + regular file with a symlink (Bug#30859). + + Changed Debian packaging to conflict with and replace the + ldconfig package (Bug#29398). + +Changes in version 1.9.9: + + Changed ld-linux.so and libdl.so to match glibc by not + allowing user preloads of system libraries into setu/gid + binaries unless the library itself is setuid. + + Fixed problems in ld-linux.so on the sparc architecture + (Juan Cespedes). + +Changes in version 1.9.8: + + Changed ldconfig to allow the expected type for all + libraries in a directory to be optionally specified + (Mark Phillips). See the ldconfig man page. + + Changed ldconfig to use the same type names used in the + change above when the -p option is used. + +Changes in version 1.9.7: + + Changed ldd for m68k to use /lib/ld.so.1 instead of + /lib/ld-linux.so.2. + + Added support for dladdr to libdl.so (Eduard Gode). + + Fixed a small memory leak in libdl.so (Richard Garnish). + + Fixed a bug in ldconfig when the -l option was used on a + filename without a '/' in it. + + Updated the man pages (Bug#6404, Bug#9721, Bug#10652, + Bug#13494 and Bug#14127). They could still use some work. + + No longer install the info page since it's way out of date. + + Fixed minor Debian packaging problems (Bug#13160, + Bug#15577 and Bug#19345). + +Changes in version 1.9.6: + + Changed ldd to not use the glibc dynamic linker when run + on a libc5-based shared library. + + Added a -q option to ldconfig which causes warnings not + to be printed (Bob Tinsley). + + Dropped support for the Debian libdl1-dev package. + + Changed ld-linux.so to be compilable with gcc 2.8.0 (Sven + Verdoolaege) + +Changes in version 1.9.5: + + Fixed a bug in ldd where ld-linux.so.2 was not called + correctly when run on shared libraries. + + Fixed a problem in the previous version where some + Makefiles were not architecture independent. + +Changes in version 1.9.4: + + Fixed a bug in ld.so introduced in the previous version + which broke preloads. + + Turned a.out support back on by default, at least for the + time being. There are no promises to keep it. + +Changes in version 1.9.3: + + Fixed buffer overflow bugs in ld-linux.so and ld.so. + + Changed the README file a little to clarify a couple of + things. + + Changed ldconfig to chroot to the specified directory when + the new -r option is used (Bob Tinsley). + +Changes in version 1.9.2: + + Removed /usr/local/lib from the default /etc/ld.so.conf + for Debian (Bug#8181). + + Changed ldconfig to be 64-bit clean (H.J. Lu). + +Changes in version 1.9.1: + + Changed ldconfig to try to determine which libc a + library is for even if it doesn't have an soname. + + Fixed a bug in ldconfig where an older library using + the glibc naming convention would be used instead of + a newer library. + + Changed to ld-linux.so and libdl.so to not require the + libc5 headers in order to compile. + + Changed ldconfig and ldd to be compilable with either + libc5 or libc6. + +Changes in version 1.9.0: + + Changed to not build the old, a.out dynamic loader by + default. + + Changed instldso.sh to require the --force option to + make sure users read the README file. + + Changed instldso.sh to not install the libdl.so + development files unless the --devfiles option is used. + + Changed instldso.sh to not strip binaries and libraries + if the --no-strip option is used. + + Changed the Debian packaging to put the development files + which conflict with glibc in a new libdl1-dev package. + + Changed ldd to use the glibc dynamic linker, if it is + available, when run on a shared library. + + Changed ld-linux.so to print the load addresses of + libraries, ala glibc, when run by ldd. + + Changed ld-linux.so to allow the libraries listed in + LD_PRELOAD to be separated by white space in addition to + colons. + + Changed ld-linux.so to load the libraries listed in + LD_PRELOAD for setu/gid programs as long as they can be + loaded securely. + + Changed ldconfig to update the symlinks for the dynamic + linkers. + + Changed ldconfig to try to determine if an ELF library is + intended for libc5 or libc6 and save the infomation in the + cache. The mechanism used is rather simplistic and may + need to be enhanced. + + Changed ldconfig to print the type of ELF library when + printing the cache. + + Changed ld-linux.so to only load ELF shared libraries for + use with libc5 or an unknown libc. + +Changes in version 1.8.10: + + Fixed a bug in ldconfig where a symlink could be used + instead of a regular file. + + Fixed a Debian packaging problem for the sparc + architecture. + +Changes in version 1.8.9: + + Changed ldconfig to only cache the symlinks it creates. + This make the behavior of the dynamic linkers consistent + with how they would behave if a cache was not used. + + Changed ldconfig to cache the symlinks that it finds but + use the name of the symlink as the soname instead of the + actual soname. + +Changes in version 1.8.8: + + Minor documentation updates to reflect recent changes. + + Changed ld.so and ld-linux.so to perform more complete + validation on ld.so.cache before using it. + + Changed ldconfig to accept libraries with inconsistent + sonames since glibc is going to use them. A warning is + still printed in debug mode. + + Changed the install script to not strip _dl_debug_state + from ld-linux.so since gdb needs it. + + More sparc fixes (Derrick Brashear). + + Changed ldconfig to not issue a warning when a linker + script disguised as a shared library is found. + + Fixed a bug in ld-linux.so where some registers were + not preserved on the first call to a function causing + problems for non-C-like languages (Tim Renouf). + + Fixed a bug in ld-linux.so where global variables were + not always mapped correctly across dynamically loaded + libraries (Mikihiko Nakao). + + Converted to new Debian source packaging format (Shaya + Potter). + +Changes in version 1.8.6/7: + + Never released as some unofficial patches used these + version numbers. + +Changes in version 1.8.5: + + Fixed a bug in ld.so introduced in the previous changes. + +Changes in version 1.8.4: + + Changed ldconfig to completely ignore symbolic links. + + Changed ldconfig to issue the warning concerning an + inconsistent soname in non-verbose mode. + + Changed ld-linux.so back to not keep ld.so.cache mapped + at all times. + + Changed Debian packaging to compress man pages, strip all + binaries (Bug#5125) and include a shlibs file. + +Changes in version 1.8.3: + + Changed ld-linux.so to process LD_PRELOAD before + /etc/ld.so.preload. + + Fixed a Debian packaging problem where libdl might not + be available if other packages were upgraded at the same + time (Debian Bug#4728). + + Changed ldd to always exit with status 1 if any errors + occur (Debian Bug#4188). + + Fixed some minor problems in instldso.sh (Mike Castle and + Wolfgang Franke). + + Changed ldconfig to issue a warning in verbose mode when + skipping a library because the soname doesn't match. + + More sparc fixes (Miguel de Icaza). + + Don't link with -N when building ld.so (Alan Modra). + + Changed ld-linux.so to better support position-dependant + libraries (NIIBE Yutaka). + +Changes in version 1.8.2: + + Added a texinfo file for ld.so and libdl (Michael + Deutschmann). + + Minor sparc and installation changes (Elliot Lee). + + Added multiple architecture support for Debian (Leland + Lucius). + + Changed libdl to better support RTLD_NEXT (Eric + Youngdale). Note: the exact meaning of ETLD_NEXT is + still not clear in all cases. + + Removed some libc dependencies from libdl. Still need + to remove malloc and free. + +Changes in version 1.8.1: + + Changed ld.so to be compiled as ELF. This also means + that ELF support is now required. A.out support is + still optional. + + Changed ld-linux.so and libdl.so to use the rpath in the + executable instead of in the invoking shared library. + + More m68k fixes (Andreas Schwab). + + Various sparc fixes (Miguel de Icaza). + + Changed ldcnnfig to ignore libraries ending in '~'. + + Changed ldconfig to allow alternative conf and cache + files to be specified on the command-line. + + Changed libdl.so to work when dlsym is passed a NULL + handle pointer. + +Changes in version 1.8.0: + + Changed ld-linux.so to be more liberal when checking to + see if a library is already loaded. This should avoid + the duplicate loading problem for programs linkeed with + the -rpath option. + + Various m68k fixes (Andreas Schwab). + + Changed ld.so to only use LD_AOUT_LIBRARY_PATH and + LD_AOUT_PRELOAD and ld-linux.so to only use + LD_LIBRARY_PATH and LD_PRELOAD. LD_ELF_LIBRARY_PATH + and LD_ELF_PRELOAD are no longer supported. + + Changed ld-linux.so to allow debugging of shared and + dynamically loaded libraries (H.J. Lu, Andreas Schwab). + + Changed ld-linux.so to preload ELF shared libraries + listed in /etc/ld.so.preload. This allows secure + preloads, even for setuid/setgid programs. + + Changed ld-linux.so to keep ld.so.cache mapped at all + times. + + Changed ldconfig to allow #-style comments in ld.so.conf. + + Removed various compiler warnings (Richard Sladkey and + David Engel). + + Changed ldd to work on ELF shared libraries. This may + need a little more work. + +Changes in version 1.7.14: + + Changed ldconfig to recognize ELF shared libraries + generated by post-2.6 versions of ld (Andreas Schwab). + + Changed ldconfig to not remove stale links that do not + have a version number since they may be needed by ld. + +Changes in version 1.7.13: + + Fixed a problem in ld-linux.so where a program linked + with a shared library that was not used could result in + a segmentation fault (H.J. Lu). + +Changes in version 1.7.12: + + Fixed a problem in libdl.so where the wrong library + could be marked as global when RTLD_GLOBAL was used + (Lars Heete). + + Installed dlfcn.h with libdl.so instead of requiring + it to be supplied with libc. + + Removed support for libldso.a since it was nearly + impossible to use anyway. + + Changed ldd to detect when the program being checked + exited abnormally. + +Changes in version 1.7.11: + + Changed ld.so and ld-linux.so to delete all variations + of LD_PRELOAD and LD_LIBRARY_PATH for set[ug]id programs, + This makes it harder for broken set[ug]id programs to be + compromised. + + Fixed a problem in libdl.so where dlsym would not accept + the handle returned from dlopen(0, *). + +Changes in version 1.7.10: + + Changed ld-linux.so and libdl.so to support RTLD_GLOBAL + (Eric Youngdale). + +Changes in version 1.7.9: + + Fixed a problem in ld-linux.so in detecting when the + new user/group information is provided by the kernel. + + Fixed a problem in ld-linux.so where a buffer could be + overflowed if a large number of libraries were loaded + (Thomas Moore). + +Changes in version 1.7.8: + + Changed the Makefiles and install scripts to support + a.out- and ELF-only configurations. + + Changed ld-linux.so to use the user/group information + provided by linux 1.3.23+ instead of making syscalls + to get it. + + Changed libdl.so to support RTLD_NEXT (Glenn Fowler). + + Changed libdl.so to only execute the fini sections + instead of completely closing libraries at exit (Glenn + Fowler). + + Changed ld.so and ld-linux.so to print the required + cache version when a mismatch is detected. + + Changed ld-linux.so to not require on /dev/zero (Ralph + Loader). + + Minor m68k cleanups (Andreas Schwab). + +Changes in version 1.7.7: + + Fixed problems compiling with recent 1.3.x kernels. + + Changed ld-linux.so to not use MAP_DENYWRITE until the + permission issue regarding it is resolved. + +Changes in version 1.7.6: + + Fixed a bug in ld-linux.so dealing with a zero-length + LD_{ELF_}PRELOAD. + + Changed ld.so and ld-linux.so to truncate all variations + of LD_PRELOAD and LD_LIBRARY_PATH for set[ug]id programs. + +Changes in version 1.7.5: + + Changed ldconfig to recognize libraries without any + version number (eg. libXYZ.so). + + Changed ldconfig to not generate a corrupt cache when + the disk is full or other write errors occur. + + Changed ld-linux.so to map files with MAP_DENYWRITE to + keep them from being changed while the file is in use + (Rick Sladkey). + + Changed libdl to not overwrite the scope pointer of a + library if it was already loaded (H.J. Lu). + + Changed ld-linux.so so gdb can be used on constructors + (Eric Youngdale). + + Changed ldconfig to ignore ELF libraries where the soname + does not match the file name on the assumption that it is + a used at compile-time (eg. libcurses.so -> libncruses.so). + +Changes in version 1.7.4: + + Changed ld-linux.so and libdl to use the appropriate + rpaths when searching for shared libraries (Eric + Youngdale). + + Changed ld-linux.so to search rpath before using the + cache. This more closely conforms to the IBCS standard. + +Changes in version 1.7.3: + + Changed ld-linux.so to only print a library name the + first time it is loaded when run from ldd. + + Fixed a bug in ldconfig where an invalid cache could be + generated if a directory was specified multiple times in + ld.so.conf. + + Changed ld-linux.so so it will return the address of a + weak symbol when called from dlsym in libdl (Eric + Youngdale. + +Changes in version 1.7.2: + + Changed libdl.so again to fix the undefined foobar + problem. + +Changes in version 1.7.1: + + Changed libdl so it will compile at optimization level + O3 or higher. + + Changed ldconfig to always create the cache file with + mode 644. + + Changed ldconfig to not ingore valid symlinks. + + Changed ldconfig to use the library name as the soname + for ELF libraries that do not have an soname entry. + + Changed ld-linux.so to print the actual, requested library + name at the time it is loaded instead of trying to figure + it out after the fact. + +Changes in version 1.7.0: + + Changed ldconfig to read the actual soname from the image + for ELF libraries and make it available to ld-linux.so. + The soname for DLL libraries is still determined by + truncating the minor numbers from the image file name. + + Changed ldconfig to no longer support the undocumented + sort options. + + Changed ld.so to require a valid cache to find libraries + in directories specified in ld.so.conf. /usr/lib and /lib + are still searched as a last resort. Ld-linux.so already + operated this way. + + Fixed a bug in libldso.a where the arguments to + shared_loader were not parsed correctly (Wolfram Gloger). + + Added support for RELA-style relocations under Linux/68k + (Andreas Schwab). + + Changed ld-linux.so to only map the cache once for all + libraries instead of individually for each library. + + Changed ld-linux.so continue searching the cache instead of + giving up when failing to load the first entry found. + + Changed ld-linux.so to produce output similar to ld.so when + run from ldd or when errors occur. + +Changes in version 1.6.7: + + Changed the install scripts to make sure that ld.so and + ld-linux.so are always usable. + + Added support for Linux/Sparc (Eric Youngdale). + + Added support for Linux/68k (Andreas Schwab). + + Fixed various bugs in ld-linux.so dealing with closing + files, unmapping memory, dereferencing NULL pointers and + printing library names (David Engel, Eric Youngdale and + Andreas Schwab). + + Replaced the manual page for libdl with a freely + distributable one (Adam Richter). + + Fixed a bug in ld-linux.so where LD_LIBRARY_PATH and + LD_PRELOAD were not cleared for setuid/setgid programs. + + Fixed a bug in libdl where dlsym would not return the + correct address of a symbol if it was redefined in another + library (Oleg Kibirev). + + Changed ld-linux.so to use the following order to search + for libraries: LD_{ELF_}LIBRARY_PATH, ld.so.cache, rpath, + /usr/lib and /lib. + + Changed ld-linux.so to not needlessly allocate memory when + using ld.so.cache. + +Changes in version 1.6.6: + + Changed ldconfig to not warn about removing stale links + unless the -v option is specified. + + Added manual pages for libdl (from FreeBSD/Sun) + + Fixed a bug in ld.so dealing with preloading of objects + generated by recent versions of ld (Mitch D'Souza). + + Fixed bugs in ldd where some errors were either not + detected or not printed. + + Fixed a bug in ld-linux.so where the trailing nul in a + library name was not being copied (Owen Taylor). + +Changes in version 1.6.5: + + Changed ldconfig to remove stale symbolic links. + + Added debug hooks in ld-linux.so and libdl.so to be used + by a future version of gdb (Eric Youngdale). + +Changes in version 1.6.4: + + Change ld-linux.so to print on stdout instead of stderr + when run from ldd. + + Added support for Debian GNU/Linux packaging. + +Changes in version 1.6.3: + + Fixed a bug in libdl when closing a library (H.J. Lu). + +Changes in version 1.6.2: + + Changed the error message printed by ldd when a file is + not a.out or ELF. It used to only list a.out formats. + + Changed ldconfig to no longer cache and set up links for + ld-linux.so. + + Changed ld-linux.so and libdl to not conflict with upcoming + changes in kernel header files. + + Changed ld-linux.so to not print preloaded libraries. + +Changes in version 1.6.1: + + Updated the installation script. + + Changed ld.so and ld-linux.so to look for LD_AOUT_PRELOAD + and LD_ELF_PRELOAD, respectively, before LD_PRELOAD. + + Changed ld.so and ld-linux.so to use LD_AOUT_LIBRARY_PATH + and LD_ELF_LIBRARY_PATH, respectively, instead of + AOUT_LD_LIBRARY_PATH and ELF_LD_LIBRARY_PATH. + +Changes in version 1.6.0: + + Changed ldconfig to process libraries which do not have + a minor version or patch level number. + + Incorporated ld-linux.so and libdl.so. + + Changed ld.so and ld-linux.so to not miss entries in the + cache when the fully qualified library is requested. + + Changed ldconfig to use stdout instead of stderr when + printing the cache. + +Changes in version 1.5.3: + + LD_PRELOAD enhancements (Tristan Gigold). + + LD_PRELOAD patch for linux-68k (Andreas Schwab). + +Changes in version 1.5.2: + + More ELF changes (Mitch D'Souza). + + Changed ldconfig to also update the link for ld-linux.so. + +Changes in version 1.5.1: + + More ELF and LD_PRELOAD changes (Mitch D'Souza). + +Changes in version 1.5.0: + + Chnaged all executables to QMAGIC (Mitch D'Souza and Rick + Sladkey). + + Added preliminary support for ELF to ldd and ldconfig (Eric + Youndale and H.J. Lu). + + Added support for LD_PRELOAD to ld.so (Mitch D'Souza). + + Removed the "advertising" clause from the copyright notices + in all source files. + +Changes in version 1.4.4: + + Changed ldconfig to support QMAGIC libraries. + + Fixed a bug in ld.so where some of the error messages had + transposed arguments. + +Changes in version 1.4.3: + + Fixed an obscure bug in ld.so where an index was not being + incremented when a library was not found using the cache. + +Changes in version 1.4.2: + + Changed ldconfig to issue a warning and continue instead + of an error and exiting when a link can't be updated. + This is useful when some libraries are imported on read- + only file systems, such as an NFS mounted /usr. + + Changed ld.so to be more robust in searching for libraries. + A library is not considered found unless it can actually be + loaded. If a library is not found using the cache, the + standard directories are searched as in pre-cache versions. + +Changes in version 1.4.1: + + Fixed minor Makefile problems. + + Added support for linux-68k. + + Fixed a bug in ld.so where libraries with absolute paths + were not handled correctly. + + Changed ld.so to ignore the directory in the names of + shared libraries by default. This allows older libraries + with absolute paths, such as the XView libraries, to take + advantage of the cache support. + + Added a minimal usage message to ldconfig. + +Changes in version 1.4: + + Fixed bug in ld.so where minor version numbers were not + reported correctly when a minor version incompatibility + was found. + + Fixed bug in ldconfig where libraries with subversion + numbers greater than 9 were not compared correctly. + + Added Mitch D'Souza's support for suppressing warning + messages from ld.so about minor version incompatibilities. + + Added Mitch D'Souza's support for using a cache to speed + up searching for libraries in the standard directories. + + Added Mitch D'Souza's support for a debugging version of + ld.so. Link with -lldso if you think you are experiencing + dynamic linker problems. + +Changes in version 1.3: + + Added support for libraries using absolute pathnames. If I + had known that the XView libraries used them, I would have + added this earlier. + + Fixed a bug handling old libraries using a pathname beginning + with '/' or '/lib/'. + +Changes in version 1.2a: + + Fixed a minor bug in ldd which caused all files, specifically + scripts, to be recognized as binaries. Thanks to Olaf Flebbe + for reporting it. + +David Engel +david@sw.ods.com |