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2024-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
2023-10-18Revert "elf: Always call destructors in reverse constructor order (bug 30785)"Florian Weimer1-16/+0
This reverts commit 6985865bc3ad5b23147ee73466583dd7fdf65892. Reason for revert: The commit changes the order of ELF destructor calls too much relative to what applications expect or can handle. In particular, during process exit and _dl_fini, after the revert commit, we no longer call the destructors of the main program first; that only happens after some dlopen'ed objects have been destructed. This robs applications of an opportunity to influence destructor order by calling dlclose explicitly from the main program's ELF destructors. A couple of different approaches involving reverse constructor order were tried, and none of them worked really well. It seems we need to keep the dependency sorting in _dl_fini. There is also an ambiguity regarding nested dlopen calls from ELF constructors: Should those destructors run before or after the object that called dlopen? Commit 6985865bc3ad5b2314 used reverse order of the start of ELF constructor calls for destructors, but arguably using completion of constructors is more correct. However, that alone is not sufficient to address application compatibility issues (it does not change _dl_fini ordering at all).
2023-09-08elf: Always call destructors in reverse constructor order (bug 30785)Florian Weimer1-0/+16
The current implementation of dlclose (and process exit) re-sorts the link maps before calling ELF destructors. Destructor order is not the reverse of the constructor order as a result: The second sort takes relocation dependencies into account, and other differences can result from ambiguous inputs, such as cycles. (The force_first handling in _dl_sort_maps is not effective for dlclose.) After the changes in this commit, there is still a required difference due to dlopen/dlclose ordering by the application, but the previous discrepancies went beyond that. A new global (namespace-spanning) list of link maps, _dl_init_called_list, is updated right before ELF constructors are called from _dl_init. In dl_close_worker, the maps variable, an on-stack variable length array, is eliminated. (VLAs are problematic, and dlclose should not call malloc because it cannot readily deal with malloc failure.) Marking still-used objects uses the namespace list directly, with next and next_idx replacing the done_index variable. After marking, _dl_init_called_list is used to call the destructors of now-unused maps in reverse destructor order. These destructors can call dlopen. Previously, new objects do not have l_map_used set. This had to change: There is no copy of the link map list anymore, so processing would cover newly opened (and unmarked) mappings, unloading them. Now, _dl_init (indirectly) sets l_map_used, too. (dlclose is handled by the existing reentrancy guard.) After _dl_init_called_list traversal, two more loops follow. The processing order changes to the original link map order in the namespace. Previously, dependency order was used. The difference should not matter because relocation dependencies could already reorder link maps in the old code. The changes to _dl_fini remove the sorting step and replace it with a traversal of _dl_init_called_list. The l_direct_opencount decrement outside the loader lock is removed because it appears incorrect: the counter manipulation could race with other dynamic loader operations. tst-audit23 needs adjustments to the changes in LA_ACT_DELETE notifications. The new approach for checking la_activity should make it clearer that la_activty calls come in pairs around namespace updates. The dependency sorting test cases need updates because the destructor order is always the opposite order of constructor order, even with relocation dependencies or cycles present. There is a future cleanup opportunity to remove the now-constant force_first and for_fini arguments from the _dl_sort_maps function. Fixes commit 1df71d32fe5f5905ffd5d100e5e9ca8ad62 ("elf: Implement force_first handling in _dl_sort_maps_dfs (bug 28937)"). Reviewed-by: DJ Delorie <dj@redhat.com>
2023-08-22elf: Do not run constructors for proxy objectsFlorian Weimer1-2/+6
Otherwise, the ld.so constructor runs for each audit namespace and each dlmopen namespace.
2023-01-06Update copyright dates with scripts/update-copyrightsJoseph Myers1-1/+1
2022-01-01Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2021-02-25Reduce the statically linked startup code [BZ #23323]Florian Weimer1-6/+2
It turns out the startup code in csu/elf-init.c has a perfect pair of ROP gadgets (see Marco-Gisbert and Ripoll-Ripoll, "return-to-csu: A New Method to Bypass 64-bit Linux ASLR"). These functions are not needed in dynamically-linked binaries because DT_INIT/DT_INIT_ARRAY are already processed by the dynamic linker. However, the dynamic linker skipped the main program for some reason. For maximum backwards compatibility, this is not changed, and instead, the main map is consulted from __libc_start_main if the init function argument is a NULL pointer. For statically linked binaries, the old approach based on linker symbols is still used because there is nothing else available. A new symbol version __libc_start_main@@GLIBC_2.34 is introduced because new binaries running on an old libc would not run their ELF constructors, leading to difficult-to-debug issues.
2021-01-02Update copyright dates with scripts/update-copyrightsPaul Eggert1-1/+1
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
2020-05-18elf: Assert that objects are relocated before their constructors runFlorian Weimer1-0/+6
If we try to run constructors before relocation, this is always a dynamic linker bug. An assert is easier to notice than a call via an invalid function pointer (which may not even produce a valid call stack). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2020-02-18Introduce <elf-initfini.h> and ELF_INITFINI for all architecturesFlorian Weimer1-6/+2
This supersedes the init_array sysdeps directory. It allows us to check for ELF_INITFINI in both C and assembler code, and skip DT_INIT and DT_FINI processing completely on newer architectures. A new header file is needed because <dl-machine.h> is incompatible with assembler code. <sysdep.h> is compatible with assembler code, but it cannot be included in all assembler files because on some architectures, it redefines register names, and some assembler files conflict with that. <elf-initfini.h> is replicated for legacy architectures which need DT_INIT/DT_FINI support. New architectures follow the generic default and disable it.
2020-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2019-09-07Prefer https to http for gnu.org and fsf.org URLsPaul Eggert1-1/+1
Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2018-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
2017-08-14_dl_init: Remove internal_function attributeFlorian Weimer1-1/+0
The function is called from the i386 startup code, which needs minor adjustments due to the changed ABI.
2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2016-01-04Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2014-11-05Remove INTDEF / INTUSE / INTVARDEF (bug 14132).Joseph Myers1-7/+1
Completing the removal of the obsolete INTDEF / INTUSE mechanism, this patch removes the final use - that for _dl_starting_up - replacing it by rtld_hidden_def / rtld_hidden_proto. Having removed the last use, the mechanism itself is also removed. Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. (This is not much of a test since this variable is only defined and used in the !HAVE_INLINED_SYSCALLS case.) [BZ #14132] * include/libc-symbols.h (INTUSE): Remove macro. (INTDEF): Likewise. (INTVARDEF): Likewise. (_INTVARDEF): Likewise. (INTDEF2): Likewise. (INTVARDEF2): Likewise. * elf/rtld.c [!HAVE_INLINED_SYSCALLS] (_dl_starting_up): Use rtld_hidden_def instead of INTVARDEF. * sysdeps/generic/ldsodefs.h [IS_IN_rtld] (_dl_starting_up_internal): Remove declaration. (_dl_starting_up): Use rtld_hidden_proto. * elf/dl-init.c [!HAVE_INLINED_SYSCALLS] (_dl_starting_up): Remove declaration. [!HAVE_INLINED_SYSCALLS] (_dl_starting_up_internal): Likewise. (_dl_init) [!HAVE_INLINED_SYSCALLS]: Don't use INTUSE with _dl_starting_up. * elf/dl-writev.h (_dl_writev): Likewise. * sysdeps/powerpc/powerpc64/dl-machine.h [!HAVE_INLINED_SYSCALLS] (DL_STARTING_UP_DEF): Use __GI__dl_starting_up instead of _dl_starting_up_internal.
2014-11-04Don't use INTDEF/INTUSE with _dl_init (bug 14132).Joseph Myers1-1/+0
Continuing the removal of the obsolete INTDEF / INTUSE mechanism, this patch eliminates its use for _dl_init. Since _dl_init was already declared with hidden visibility, creating a second hidden alias for it was completely pointless, so this patch replaces all uses of _dl_init_internal with plain _dl_init instead of using hidden_proto / hidden_def (which are only needed when you want a hidden alias for a non-hidden symbol; it's quite possible there are cases where they are used but don't need to be because the symbol in question is not part of the public ABI and is only used within a single library, so using attributes_hidden instead would suffice). Tested for x86_64 that installed stripped shared libraries are unchanged by the patch. [BZ #14132] * elf/dl-init.c (_dl_init): Don't use INTDEF. * sysdeps/aarch64/dl-machine.h (RTLD_START): Use _dl_init instead of _dl_init_internal. * sysdeps/alpha/dl-machine.h (RTLD_START): Likewise. * sysdeps/arm/dl-machine.h (RTLD_START): Likewise. * sysdeps/hppa/dl-machine.h (RTLD_START): Likewise. * sysdeps/i386/dl-machine.h (RTLD_START): Likewise. * sysdeps/ia64/dl-machine.h (RTLD_START): Likewise. * sysdeps/m68k/dl-machine.h (RTLD_START): Likewise. * sysdeps/microblaze/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/dl-machine.h (RTLD_START): Likewise. * sysdeps/powerpc/powerpc32/dl-start.S (_start): Likewise. * sysdeps/s390/s390-32/dl-machine.h (RTLD_START): Likewise. * sysdeps/s390/s390-64/dl-machine.h (RTLD_START): Likewise. * sysdeps/sh/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (RTLD_START): Likewise. * sysdeps/tile/dl-start.S (_start): Likewise. * sysdeps/x86_64/dl-machine.h (RTLD_START): Likewise. * sysdeps/x86_64/x32/dl-machine.h (RTLD_START): Likewise.
2014-02-10Use glibc_likely instead __builtin_expect.Ondřej Bílka1-3/+3
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae1-1/+1
2013-11-21Don't use broken DL_AUTO_FUNCTION_ADDRESS()Guy Martin1-7/+1
On hppa and ia64, the macro DL_AUTO_FUNCTION_ADDRESS() uses the variable fptr[2] in it's own scope. The content of fptr[] is thus undefined right after the macro exits. Newer gcc's (>= 4.7) reuse the stack space of this variable triggering a segmentation fault in dl-init.c:69. To fix this we rewrite the macros to make the call directly to init and fini without needing to pass back a constructed function pointer.
2013-05-29Avoid crashing in LD_DEBUG when program name is unavailableSiddhesh Poyarekar1-3/+2
Resolves: #15465 The program name may be unavailable if the user application tampers with argc and argv[]. Some parts of the dynamic linker caters for this while others don't, so this patch consolidates the check and fallback into a single macro and updates all users.
2013-01-02Update copyright notices with scripts/update-copyrights.Joseph Myers1-1/+1
2012-02-09Replace FSF snail mail address with URLs.Paul Eggert1-3/+2
2012-01-27Fix commentUlrich Drepper1-2/+2
2005-01-06* csu/elf-init.c (__libc_csu_fini): Don't do anything here. Ulrich Drepper1-12/+0
* sysdeps/generic/libc-start.c: Don't register program destructor here. * dlfcn/Makefile: Add rules to build dlfcn.c. (LDFLAGS-dl.so): Removed. * dlfcn/dlclose.c: _dl_close is now in ld.so, use function pointer table. * dlfcn/dlmopen.c: Likewise for _dl_open. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * elf/dl-libc.c: Likewise for _dl_open and _dl_close. * elf/Makefile (routines): Remove dl-open and dl-close. (dl-routines): Add dl-open, dl-close, and dl-trampoline. Add rules to build and run tst-audit1. * elf/tst-audit1.c: New file. * elf/tst-auditmod1.c: New file. * elf/Versions [libc]: Remove _dl_open and _dl_close. * elf/dl-close.c: Change for use inside ld.so instead of libc.so. * elf/dl-open.c: Likewise. * elf/dl-debug.c (_dl_debug_initialize): Allow reinitialization, signaled by nonzero parameter. * elf/dl-init.c: Fix use of r_state. * elf/dl-load.c: Likewise. * elf/dl-close.c: Add auditing checkpoints. * elf/dl-open.c: Likewise. * elf/dl-fini.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-sym.c: Likewise. * sysdeps/generic/libc-start.c: Likewise. * elf/dl-object.c: Allocate memory for auditing information. * elf/dl-reloc.c: Remove RESOLV. We now always need the map. Correctly initialize slotinfo. * elf/dynamic-link.h: Adjust after removal of RESOLV. * sysdeps/hppa/dl-lookupcfg.h: Likewise. * sysdeps/ia64/dl-lookupcfg.h: Likewise. * sysdeps/powerpc/powerpc64/dl-lookupcfg.h: Removed. * elf/dl-runtime.c (_dl_fixup): Little cleanup. (_dl_profile_fixup): New parameters to point to register struct and variable for frame size. Add auditing checkpoints. (_dl_call_pltexit): New function. Don't define trampoline code here. * elf/rtld.c: Recognize LD_AUDIT. Load modules on startup. Remove all the functions from _rtld_global_ro which only _dl_open and _dl_close needed. Add auditing checkpoints. * elf/link.h: Define symbols for auditing interfaces. * include/link.h: Likewise. * include/dlfcn.h: Define __RTLD_AUDIT. Remove prototypes for _dl_open and _dl_close. Adjust access to argc and argv in libdl. * dlfcn/dlfcn.c: New file. * sysdeps/generic/dl-lookupcfg.h: Remove all content now that RESOLVE is gone. * sysdeps/generic/ldsodefs.h: Add definitions for auditing interfaces. * sysdeps/generic/unsecvars.h: Add LD_AUDIT. * sysdeps/i386/dl-machine.h: Remove trampoline code here. Adjust for removal of RESOLVE. * sysdeps/x86_64/dl-machine.h: Likewise. * sysdeps/generic/dl-trampoline.c: New file. * sysdeps/i386/dl-trampoline.c: New file. * sysdeps/x86_64/dl-trampoline.c: New file. * sysdeps/generic/dl-tls.c: Cleanups. Fixup for dtv_t change. Fix updating of DTV. * sysdeps/generic/libc-tls.c: Likewise. * sysdeps/arm/bits/link.h: Renamed to ... * sysdeps/arm/buts/linkmap.h: ...this. * sysdeps/generic/bits/link.h: Renamed to... * sysdeps/generic/bits/linkmap.h: ...this. * sysdeps/hppa/bits/link.h: Renamed to... * sysdeps/hppa/bits/linkmap.h: ...this. * sysdeps/hppa/i386/link.h: Renamed to... * sysdeps/hppa/i386/linkmap.h: ...this. * sysdeps/hppa/ia64/link.h: Renamed to... * sysdeps/hppa/ia64/linkmap.h: ...this. * sysdeps/hppa/s390/link.h: Renamed to... * sysdeps/hppa/s390/linkmap.h: ...this. * sysdeps/hppa/sh/link.h: Renamed to... * sysdeps/hppa/sh/linkmap.h: ...this. * sysdeps/hppa/x86_64/link.h: Renamed to... * sysdeps/hppa/x86_64/linkmap.h: ...this. 2005-01-06 Ulrich Drepper <drepper@redhat.com> * allocatestack.c (init_one_static_tls): Adjust initialization of DTV entry for static tls deallocation fix. * sysdeps/alpha/tls.h (dtv_t): Change pointer type to be struct which also contains information whether the memory pointed to is static TLS or not. * sysdeps/i386/tls.h: Likewise. * sysdeps/ia64/tls.h: Likewise. * sysdeps/powerpc/tls.h: Likewise. * sysdeps/s390/tls.h: Likewise. * sysdeps/sh/tls.h: Likewise. * sysdeps/sparc/tls.h: Likewise. * sysdeps/x86_64/tls.h: Likewise.
2004-12-22(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.Ulrich Drepper1-0/+12
2007-07-122.5-18.1Jakub Jelinek1-12/+0
2004-07-06Update.Ulrich Drepper1-0/+4
2004-07-05 Ulrich Drepper <drepper@redhat.com> * elf/dl-init.c: Don't define and use _dl_starting_up if HAVE_INLINED_SYSCALLS is defined and the variable is not used. * elf/dl-support.c: Likewise. * elf/rtld.c: Likewise. * elf/dl-misc.c (_dl_debug_vdprintf): Use writev syscall directly if HAVE_INLINED_SYSCALLS is defined. * sysdeps/powerpc/powerpc64/dl-machine.h: Don't rest _dl_starting_up here. * sysdeps/powerpc/powerpc32/dl-start.S: Likewise. * sysdeps/unix/sysv/linux/configure.in: Define HAVE_INLINED_SYSCALLS. * config.h.in: Add entry for HAVE_INLINED_SYSCALLS. * sysdeps/posix/profil.c: If compiled for ld.so, omit code which is needed to stop profiling. * elf/dl-open.c (dl_open_worker): If a newly opened object is to be profile make sure it cannot be unloaded. * sysdeps/unix/sysv/linux/dl-origin.c: Inline readlink syscall. * sysdeps/unix/sysv/linux/fcntl.c: If compiled without cancellation support, make sure the helper function is inlined. * sysdeps/unix/sysv/linux/pread.c: Likewise. * sysdeps/unix/sysv/linux/pwrite.c: Likewise. * sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Likewise.
2004-03-06Update.Ulrich Drepper1-7/+7
* elf/Versions: Remove functions which are not exported anymore. * dlfcn/dlerror.c: Call ld.so functions through GLSO. * dlfcn/dlinfo.c: Likewise. * elf/dl-close.c: Likewise. * elf/dl-libc.c: Likewise. * elf/dl-open.c: Likewise. * elf/dl-sym.c: Likewise. * sysdeps/generic/libc-start.c: Likewise. * elf/dl-debug.c: Remove *_internal definition. Don't use INTUSE for functions which are not exported anymore. * elf/dl-deps.c: Likewise. * elf/dl-dst.h: Likewise. * elf/dl-error.c: Likewise. * elf/dl-fini.c: Likewise. * elf/dl-init.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-misc.c: Likewise. * elf/dl-profile.c: Likewise. * elf/dl-profstub.c: Likewise. * elf/dl-reloc.c: Likewise. * elf/dl-runtime.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-lookup.h: Likewise. * include/dlfcn.h: Likewise. * sysdeps/generic/dl-cache.c: Likewise. * sysdeps/generic/dl-fptr.c: Likewise. * sysdeps/generic/dl-origin.c: Likewise. * sysdeps/generic/dl-sysdep.c: Likewise. * sysdeps/generic/dl-tls.c: Likewise. * sysdeps/generic/ldsodefs.h: Likewise. * sysdeps/i386/dl-tls.h: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * elf/rtld.c: Likewise. Export function though _rtld_global_ro. * generic/dl-fptr.c: Likewise. * mach/hurd/dl-sysdep.c: Likewise. * unix/sysv/linux/ia64/dl-static.c: Likewise. * unix/sysv/linux/ia64/getpagesize.c: Likewise. * unix/sysv/linux/m68k/getpagesize.c: Likewise. * unix/sysv/linux/sparc/sparc32/getpagesize.c: Likewise.
2004-03-05Update.Ulrich Drepper1-3/+3
* sysdeps/sparc/sparc64/dl-machine.h: Likewise. * sysdeps/sparc/sparc32/dl-machine.h: Likewise. * sysdeps/s390/s390-64/dl-machine.h: Likewise. * sysdeps/s390/s390-32/dl-machine.h: Likewise. * sysdeps/powerpc/powerpc64/dl-machine.h: Likewise. * sysdeps/powerpc/powerpc32/dl-machine.c: Likewise. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/ia64/dl-machine.h: Likewise. * sysdeps/arm/dl-machine.h: Likewise. * sysdeps/alpha/dl-machine.h: Likewise.
2002-09-20(_dl_init): Fix test of the size of the preinit_array section. (call_init): ↵Ulrich Drepper1-6/+7
Optimize access to DT_INIT_ARRAY entry a bit.
2002-03-01Update.Ulrich Drepper1-3/+4
2002-03-01 Ulrich Drepper <drepper@redhat.com> * elf/Makefile (dl-routines): Add dl-origin. (elide-routines.os): Add dl-origin. * elf/Versions [ld] (GLIBC_PRIVATE): Add _dl_get_origin. * elf/dl-debug.c (_dl_debug_initialize): Add missing INTUSE around _dl_debug_state. * include/libc-symbols.c: Define attribute_hidden depending on HAVE_VISIBILITY_ATTRIBUTE. Add definition of INTVARDEF. * elf/dl-deps.c: Use INTUSE with __libc_enable_secure. * elf/dl-load.c: Likewise. * elf/rtld.c: Likewise. * include/unistd.h: Declare __libc_enable_secure_internal. * sysdeps/generic/dl-sysdep.c: Use INTVARDEF with __libc_enable_secure. Use INTUSE with __libc_enable_secure. * sysdeps/mach/hurd/dl-sysdep.c: Likewise. * elf/dl-deps.c: Use INTUSE with _dl_out_of_memory. * elf/dl-error.c: Likewise, * sysdeps/generic/ldsodefs.h: Declare _dl_out_of_memory_internal. * elf/dl-dst.h [_RTLD_GLOBAL]: Define _dl_get_origin to use INTUSE. * sysdeps/generic/dl-origin.c: Undefine _dl_get_origin macro before function definition. Use INTDEF with _dl_get_origin. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * elf/dl-init.c: Use INTUSE with _dl_starting_up. * elf/rtld.c: Likewise. Use INTVARDEF for _dl_starting_up. * elf/dl-profile.c: Use INTDEF for _dl_mcount. * elf/dl-runtime.c: Use INTUSE with _dl_mcount. * sysdeps/generic/ldsodefs.h: Declare _dl_mcount_internal. * elf/dl-conflict.c: Use rtld_progrname instead of _dl_argv[0]. * elf/dl-deps.c: Likewise. * elf/dl-error.c: Likewise. * elf/dl-fini.c: Likewise. * elf/dl-init.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-reloc.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-lookup.h: Likewise. * sysdeps/arm/dl-machine.h: Likewise. * sysdeps/cris/dl-machine.h: Likewise. * sysdeps/hppa/dl-machine.h: Likewise. * sysdeps/i386/dl-machine.h: Likewise. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/powerpc/dl-machine.h: Likewise. * sysdeps/s390/s390-32/dl-machine.h: Likewise. * sysdeps/s390/s390-64/dl-machine.h: Likewise. * sysdeps/sh/dl-machine.h: Likewise. * sysdeps/sparc/sparc-32/dl-machine.h: Likewise. * sysdeps/sparc/sparc-64/dl-machine.h: Likewise. * sysdeps/x86_64/dl-machine.h: Likewise. * elf/rtld.c: Use INTDEF for _dl_argv. Use rtld_progrname instead of _dl_argv[0]. Use INTUSE with _dl_argv. * sysdeps/generic/dl-sysdep.c: Use INTUSE with _dl_argv. * sysdeps/generic/ldsodefs.h: Define rtld_progname macro.
2002-02-06Update.Andreas Jaeger1-7/+7
2002-02-06 Andreas Jaeger <aj@suse.de> * include/libc-symbols.h (INTUSE): Renamed from INT. * elf/dl-deps.c: Change users. * sysdeps/generic/dl-sysdep.c: Likewise. * sysdeps/generic/dl-cache.c: Likewise. * elf/dl-reloc.c: Likewise. * elf/rtld.c: Likewise. * elf/dl-version.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-dst.h: Likewise. * elf/dl-init.c: Likewise.
2002-02-03Update.Ulrich Drepper1-7/+8
Change ld.so to not use functions which are exported. One cannot interpose them anyway. Use INT() to mark uses, INTDEF() to mark definitions. * include/libc-symbols.h: Define INT and INTDEF. * sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal, _dl_signal_error_internal, _dl_map_object_internal, _dl_map_object_deps_internal, _dl_lookup_symbol_internal, _dl_lookup_versioned_symbol_internal, _dl_relocate_object_internal, _dl_debug_state_internal, _dl_start_profile_internal, and _dl_unload_cache_internal. * include/dlfcn.h: Declare _dl_catch_error_internal. * elf/rtld.c: Use INT for calls to any of the *_internal functions above. Add INTDEF to function definitions. * elf/dl-debug.c: Likewise. * elf/dl-deps.c: Likewise. * elf/dl-dst.h: Likewise. * elf/dl-error.c: Likewise. * elf/dl-fini.c: Likewise. * elf/dl-init.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-misc.c: Likewise. * elf/dl-open.c: Likewise. * elf/dl-profile.c: Likewise. * elf/dl-reloc.c: Likewise. * elf/dl-runtime.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-lookup.h: Likewise. * sysdeps/generic/dl-cache.c: Likewise. * sysdeps/generic/dl-sysdep.c: Likewise. * sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal instead of _dl_init. * sysdeps/arm/dl-machine.h: Likewise. * sysdeps/cris/dl-machine.h: Likewise. * sysdeps/hppa/dl-machine.h: Likewise. * sysdeps/i386/dl-machine.h: Likewise. * sysdeps/ia64/dl-machine.h: Likewise. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/mips/dl-machine.h: Likewise. * sysdeps/mips/mips64/dl-machine.h: Likewise. * sysdeps/s390/s390-32/dl-machine.h: Likewise. * sysdeps/s390/s390-64/dl-machine.h: Likewise. * sysdeps/sh/dl-machine.h: Likewise. * sysdeps/sparc/sparc32/dl-machine.h: Likewise. * sysdeps/sparc/sparc64/dl-machine.h: Likewise. * sysdeps/x86_64/dl-machine.h: Likewise. * sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise. * elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start, and _dl_debug_initialize.
2002-01-31Update.Ulrich Drepper1-9/+6
2002-01-30 Ulrich Drepper <drepper@redhat.com> * Versions.def [ld]: Add GLIBC_2.3. * elf/dl-addr.c: Move global variables for SHARED code in struct _rtld_global. Export this struct, remove all exports for the signal variables. * elf/dl-close.c: Likewise. * elf/dl-conflict.c: Likewise. * elf/dl-debug.c: Likewise. * elf/dl-deps.c: Likewise. * elf/dl-dst.h: Likewise. * elf/dl-error.c: Likewise. * elf/dl-fini.c: Likewise. * elf/dl-init.c: Likewise. * elf/dl-iteratephdr.c: Likewise. * elf/dl-libc.c: Likewise. * elf/dl-load.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-minimal.c: Likewise. * elf/dl-object.c: Likewise. * elf/dl-open.c: Likewise. * elf/dl-profile.c: Likewise. * elf/dl-profstub.c: Likewise. * elf/dl-reloc.c: Likewise. * elf/dl-runtime.c: Likewise. * elf/dl-support.c: Likewise. * elf/dl-sym.c: Likewise. * elf/dl-version.c: Likewise. * elf/do-lookup.h: Likewise. * elf/do-rel.h: Likewise. * elf/dynamic-link.h: Likewise. * elf/rtld.c: Likewise. * sysdeps/generic/dl-cache.c: Likewise. * sysdeps/generic/dl-sysdep.c: Likewise. * sysdeps/generic/ldsodefs.h: Likewise. * sysdeps/generic/libc-start.c: Likewise. * sysdeps/i386/dl-machine.h: Likewise. * sysdeps/ia64/dl-fptr.c: Likewise. * sysdeps/ia64/dl-machine.h: Likewise. * sysdeps/unix/sysv/linux/dl-librecon.h: Likewise. * sysdeps/unix/sysv/linux/dl-origin.c: Likewise. * sysdeps/unix/sysv/linux/dl-osinfo.h: Likewise. * sysdeps/unix/sysv/linux/getclktck.c: Likewise. * sysdeps/unix/sysv/linux/getpagesize.c: Likewise. * sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise. * sysdeps/unix/sysv/linux/ia64/dl-static.c: Likewise. * sysdeps/unix/sysv/linux/ia64/getpagesize.c: Likewise. * malloc/thread-m.h: Spinlock definitions for x86/x86_64.
2001-07-06Update to LGPL v2.1.Andreas Jaeger1-8/+8
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
2001-02-28Update.Ulrich Drepper1-5/+5
* sysdeps/arm/dl-machine.h: Likewise. * sysdeps/hppa/dl-machine.h: Likewise. * sysdeps/m68k/dl-machine.h: Likewise. * sysdeps/powerpc/dl-machine.h: Likewise. * sysdeps/s390/dl-machine.h: Likewise. * sysdeps/sh/dl-machine.h: Likewise.
2001-02-27Replace _dl_debug_* variables with _dl_debug_mask.Ulrich Drepper1-2/+2
2001-02-03Update.Ulrich Drepper1-5/+7
* elf/dl-init.c: Add a few __builtin_expect.
2001-02-02Update.Ulrich Drepper1-55/+65
2001-02-01 Ulrich Drepper <drepper@redhat.com> * Makerules (build-shlib): Add $(extra-B-$(@F:lib%.so=%).so). * configure.in: Test for -z initfirst linker option. * config.make.in: Add have-z-initfirst. * elf/dl-init.c (_dl_init): Split out actual initialization code in new function call_init. If _dl_initfirst is non-NULL initialize first. * elf/dl-load.c (_dl_map_from_fd): If DF_1_INITFIRST flag is set remember object in _dl_initfirst. * elf/soinit.c: Remove special support for calling __pthread_initialize_minimal. * conform/conformtest.pl: Add missing $prepend in type test. * elf/elf.h (SHT_CHECKSUM): New definition. * posix/tst-fnmatch.input: Add tests for [. .] in locales.
2000-11-16Update.Ulrich Drepper1-1/+2
2000-11-15 H.J. Lu <hjl@gnu.org> * sysdeps/generic/ldsodefs.h (DL_DT_INIT_ADDRESS): Defined if ELF_FUNCTION_PTR_IS_SPECIAL is not defined. (DL_DT_FINI_ADDRESS): Likewise. * sysdeps/ia64/dl-lookupcfg.h (_dl_lookup_address): Set the return type to ElfW(Addr). (_dl_function_address): New prototype. (DL_FUNCTION_ADDRESS): Defined. (DL_DT_INIT_ADDRESS): Defined as DL_FUNCTION_ADDRESS. (DL_DT_FINI_ADDRESS): Likewise. * sysdeps/ia64/Versions (GLIBC_2.2): Add _dl_function_address. * sysdeps/ia64/dl-machine.h (_dl_start_address): Removed. (ELF_MACHINE_START_ADDRESS): Changed to DL_FUNCTION_ADDRESS. * sysdeps/ia64/dl-symaddr.c (_dl_start_address): Renamed to ... (_dl_function_address): This. * elf/dl-fini.c (_dl_fini): Use DL_DT_FINI_ADDRESS to get the function pointer for DT_FINI. * elf/dl-close.c (_dl_close): Likewise. * elf/dl-init.c (_dl_init): Use DL_DT_INIT_ADDRESS to get the function pointer for DT_INIT. 2000-11-16 Jakub Jelinek <jakub@redhat.com> * sysdeps/generic/printf_fphex.c (__printf_fphex): Compute correctly end of wexpbuf buffer.
2000-04-28Update.Ulrich Drepper1-1/+1
* wcsmbs/wcrtomb.c (__wcrtomb): Set end of buffer correctly if s == NULL. Little optimization. * elf/dl-init.c (_dl_init): Correct typo (DT_PREINIT_ARRAY not DT_PREINIT_ARRAYSZ). Reported by Jes Sorensen <Jes.Sorensen@cern.ch>.
2000-04-17Update.Ulrich Drepper1-2/+2
* elf/dl-reloc.c (_dl_relocat_object): Add more __builtin_expect. * elf/dl-lookup.c: Add more __builtin_expect. * elf/dl-init.c (_dl_init): Add more __builtin_expect. * elf/dl-fini.c (_dl_fini): Add more __builtin_expect. * elf/dl-deps.c (_dl_map_object_deps): Add more __builtin_expect. * elf/dl-close.c (_dl_close): Add more __builtin_expect. * elf/rtld.c (_dl_start_final): Add more __builtin_expect.
2000-03-31Update.Ulrich Drepper1-1/+1
2000-03-31 Ulrich Drepper <drepper@redhat.com> * elf/Makefile (distribute): Add dep1.c, dep2.c, dep3.c, and dep4.c. (tests): Add order. (module-names): Add dep1, dep2, dep3, and dep4. Add dependencies for dep* modules and order. Define rule for order.out which checks the result. * elf/dep1.c: New file. * elf/dep2.c: New file. * elf/dep3.c: New file. * elf/dep4.c: New file. * elf/order.c: New file. * elf/dl-init.c: Fix type in comment.
2000-03-31Update.Ulrich Drepper1-0/+6
* elf/dl-init.c (_dl_init): Clear _dl_starting_up at end of with size of dynamic sectionfunction. * sysdeps/i386/dl-machine.h: Remove code to clear _dl_starting_up. * misc/sys/cdefs.h: Don't allow gcc in traditional mode to be with size of dynamic sectionused.
2000-03-31Update.Ulrich Drepper1-0/+19
* elf/Makefile (dl-routines): Remove preinit. * elf/Versions: Remove _dl_preinit. * elf/dl-preinit.c: Removed. Move content into... * elf/dl-init.c: ...here.
2000-03-30Update.Ulrich Drepper1-45/+24
* elf/dl-init.c (_dl_init): We don't need to call constructors recursively. Fold _dl_init_rec in _dl_init and optimize a bit more.
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