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* Add support for DSBT ELF to ld.soMark Salter2011-03-051-1/+10
| | | | | | | | | | This adds support for DSBT ELF to ld.so. This uses loadmaps like FD-PIC. Some code is added in ld.so to initialize the DSBT tables, and there's also a new target macro FINISH_BOOTSTRAP_RELOC. Signed-off-by: Mark Salter <msalter@redhat.com> Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>
* ldso: fix fdpic buildsMike Frysinger2011-02-211-2/+7
| | | | | | | | | | | | Commit 33cb7f0b4 tried to add a small optimization for skipping unnecessary .dynamic adjustments, but did so by referencing an opaque type. While this works for non-fdpic targets (since the type can be cast to an integer), it falls apart for fdpic targets where the type is actually a structure. Since FDPIC can't support this optimization without walking a series of linked structures, just skip it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* ldso: Do not adjust dynamic section entries unnecessarilyFilippo Arcidiacono2010-09-151-7/+10
| | | | | Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
* ldso: support RTLD_NODELETE and DF_1_NODELETETimo Teräs2010-04-221-7/+13
| | | | | | | | | Honor the nodelete flags so we don't delete shared library if it's sticky. This is useful for libpthread if it gets pulled in by a dlopen'ed library. Signed-off-by: Timo Teräs <timo.teras@iki.fi> Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
* - fix inline keywordBernhard Reutner-Fischer2008-07-231-2/+2
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* fix broken whitespace in many places; no functional changesMike Frysinger2008-01-091-4/+4
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* Blackfin FD-PIC patch 3/6.Bernd Schmidt2007-12-031-0/+5
| | | | | | | | | | | | | | | Change _dl_find_hash to _dl_lookup_hash, as on the NPTL branch. _dl_find_hash is now a wrapper function around it; unlike on the NPTL branch, it retains the old interface so that not all callers need to be changed. _dl_lookup_hash can optionally give its caller a pointer to the module where the symbol was found. Introduce ELF_RTYPE_CLASS_DLSYM for lookups from libdl. Spelling fixes in the Blackfin port, since Alex Oliva's original version of these patches used _dl_find_hash_mod as the name of the function rather than _dl_lookup_hash.
* Added support for GNU hash style into dynamic linkerCarmelo Amoroso2007-11-071-2/+19
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* patch from Bernd Schmidt to abstract away initializing of relocation addressesMike Frysinger2006-07-051-1/+1
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* patch from Bernd Schmidt to abstract away load address typesMike Frysinger2006-07-051-2/+4
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* revert fdpic patch so we can merge it in bit by bitMike Frysinger2006-07-051-6/+3
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* Bernd Schmidt writes: abstract away addresses so we can support FDPIC ELFsMike Frysinger2006-06-301-3/+6
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* add a note as to why mips is specialMike Frysinger2006-04-201-0/+4
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* change to Lesser GPL 2.1 as pointed out by psmMike Frysinger2005-11-231-1/+1
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* add some copyright infoMike Frysinger2005-11-221-0/+7
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* oops, fix typo in ELF_ST_BIND macrosMike Frysinger2005-07-131-2/+2
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* clean up whitespaceMike Frysinger2005-07-071-11/+9
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* make RUNPATH/RPATH support configurableMike Frysinger2005-07-071-0/+2
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* setup ELF_R_TYPE() wrapper for ELF{32,64}_R_TYPE()Mike Frysinger2005-07-061-0/+2
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* use new __always_inline defineMike Frysinger2005-07-021-1/+1
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* create generic ELF_* macros to hide 32/64 bit differencesMike Frysinger2005-06-301-0/+20
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* change all Elf32_* usage to ElfW(*) usage since we shouldnt care about the ↵Mike Frysinger2005-06-301-2/+2
| | | | bitsize
* Initial support for both RUNPATH support.Joakim Tjernlund2005-06-011-0/+4
| | | | | | RPATH sematics changed to match RUNPATH. Only difference is that RPATH is searched before LD_LIBRARY_PATH and RUNPATH after. This is not complete but better than the current mess(I think).
* Moved the addition of load address from the fast pathJoakim Tjernlund2005-03-291-3/+17
| | | | | where possible. This will also make ldso smaller. However the patch touches all archs and I have only tested PPC and x86.
* - Remove dynamic_size from struct elf_resolve.Joakim Tjernlund2004-11-021-1/+48
| | | | | | | | | | - Replace all open coded dynamic handling with a function. Reduces size. - Fold special MIPS dynamic code into the dynamic_info item. - Add RELRO support. - Support linking with "-z now". - prepare for DT_RELACOUNT/DT_RELCOUNT optimization. - Add -z now to ld.so linking, this is what ld.so does anyway so let the linker know that.
* Remove usage of _dl_parse_copy_information() from generic code.Joakim Tjernlund2004-10-071-2/+0
| | | | | | Remove definition of _dl_parse_copy_information() for powerpc. Remaining archs can do the same. Make debugging output of "relocation processing: xxx" a bit more sane.
* Puts common defines into dl-defs.h (in ldso/include) from dl-elf.h andJoakim Tjernlund2004-10-061-34/+1
| | | | | | dl-cache.h and make use of it. Also disables the lib-path-redundancy check for the case the cache is not used. Makes use of _PRELOAD_FILE_SUPPORT. From Peter Mazinger.
* This patch from Mike Frysinger, extended from an earlier patch from Peter S.Eric Andersen2004-10-031-10/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mazinger implements the changes suggested by me on the uclibc list. On Tuesday 28 September 2004 02:24 pm, Erik Andersen wrote: > What I think should be done is > > *) Someone that cares about USE_CACHE should fix that option > up to be sure it works, and give it a proper config entry > in extra/Configs/Config.in, and rename it to something > more appropriate such as LDSO_CACHE_SUPPORT. > > *) When LDSO_CACHE_SUPPORT=n, UCLIBC_RUNTIME_PREFIX /usr/X11R6/lib > should be included in the default library search path in > dl-elf.c, ldd, and ldconfig. > > *) When LDSO_CACHE_SUPPORT=y, UCLIBC_RUNTIME_PREFIX /usr/X11R6/lib > should be excluded from the default library search path in > dl-elf.c, ldd, and ldconfig, and those wishing to include > X11 stuff should add that into /etc/ld.so.conf and re-run > ldconfig. > > *) At present, LDSO_CONF and LDSO_CACHE use the same names > and same structure as glibc. This precludes > LDSO_CACHE_SUPPORT being uses in any sane fashion on a > dial glibc and uClibc system. Just as it was necessary > for use to use a different name for 'libuClibc' rather > than 'libc', and 'ld-uClibc.so.0' rather than > 'ld-linux.so.2' it seems that these configuration files > really ought to be given different names. >
* Patch from Stefan Allius:Joakim Tjernlund2004-08-251-3/+3
| | | | | Remove unused function parameter in ldso. Remove echo option '-e' since it is not supported on Solaris.
* Let dl-string.h include dl-sysdep.h, since it has proper include guardsEric Andersen2004-06-201-1/+1
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* Sigh. I switched the values...Eric Andersen2004-02-201-2/+2
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* Slightly cleaner formattingEric Andersen2004-02-201-4/+4
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* Joakim Tjernlund writes:Eric Andersen2004-02-141-0/+13
| | | | | | | | | | | | | | | | | | Hi it is me again. This is the latest ldso patch. the NEW weak symbol handling works now with a little special handling in _dl_find_hash(). You get to chose if you want the new or old handling :) There was 2 missing _dl_check_if_named_library_is_loaded() calls in _dlopen(). I then disabled the _dl_check_if_named_library_is_loaded() in dl-elf.c since it is rendundant. Question, why does some _dl_linux_resolver(), like i386, have 2 calls to _dl_find_hash()? I think that is wrong, isn't it? I really hope you can check this out soon ...
* Rework file naming, aiming for at least a vague level of consistancyEric Andersen2004-02-101-1/+1
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* Step one, begin shuffling things around a bitEric Andersen2004-02-071-2/+5
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* Modify interfaces for _dl_parse_relocation_information()Eric Andersen2004-01-291-5/+5
| | | | | | | _dl_parse_lazy_relocation_information() and _dl_parse_copy_information() so they are all consistant, allowing for future consolidation. Trim some trailing whitespace as well.
* Scrub up use of ELF_USES_RELOCA and eliminte some unsightly ifdefsEric Andersen2004-01-291-0/+9
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* Eliminate separate passes for _dl_copy_fixups() and _dl_fixup(), andEric Andersen2004-01-291-1/+0
| | | | do both operations in a single pass.
* Rework the config system. Better utilize the Kconfig languageEric Andersen2003-11-041-3/+3
| | | | | which should simplify enabling arbitrary architectures. -Erik
* Always build and install ldconfigEric Andersen2003-10-121-1/+2
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* Weed out duplicates before trying to load libraries.... DelayedEric Andersen2003-08-311-0/+1
| | | | | checking for duplicates and returning an alias if an existing lib is already loaded is still correct for the dlopen case.
* Phase one of my evil plan to clean up ld.so...Eric Andersen2003-08-191-0/+91