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path: root/ldso/ldso/sh/elfinterp.c
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2017-06-21remove the not useful disclaimerWaldemar Brodkorb
2017-01-14ldso: do not resolve relocations for debug, dig them up when debuggingWaldemar Brodkorb
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
2012-03-25ldso: use ELF_xxx()/ElfW() helpersMike Frysinger
They expand into the same code, but using the ELF_xxx()/ElfW() macros makes it much easier to spot similarities between code bases. Acked-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> Acked-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-03-14ldso:sh: fix compiler warning due to unused-but-set-variableCarmelo Amoroso
gcc 4.6.x raises useful warnings due to unused-but-set-variable, This patch fixes the following one by using properly preprocessor guard In file included from ldso/libdl/libdl.c:129:0: ./ldso/ldso/sh/elfinterp.c: In function '_dl_do_reloc': ./ldso/ldso/sh/elfinterp.c:163:22: warning: variable 'tls_tpnt' set but not used [-Wunused-but-set-variable] Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-10-14ldso: silence harmless warning for !LDSO_PRELINK_SUPPORTBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-01-21Merge remote branch 'origin/master' into prelinkCarmelo Amoroso
* origin/master: bump version to 0.9.32-rc2-git release 0.9.32-rc2 nptl: Fix __USER_LABEL_PREFIX__ concatenatio nptl: fix start_thread() for _STACK_GROWS_UP ldso: get rid of _dl_lookup_hash Add protected symbols support for all architectures Revert "ldso/arm: Correct protected symbol resolution" Revert "ldso_sh: add support for protected symbols to SH" Revert "ldso/i386: support protected symbols" cris: Fix build issues syslog: fix 'everyone logs with user facility' __psfs_parse_spec: always use long int for %p buildsys: headers target should not depend on sysnum.h buildsys: fix make release target nptl: get rid of the last preprocessor warning when __ASSUME_TGKILL is not defined remove uClibc_ctype.h if !LOCALE Revert "Makefile.in: Add header to 'all' target" nptl: get rid of preprocessor warning when __ASSUME_TGKILL is not defined Conflicts: ldso/include/dl-hash.h ldso/ldso/arm/elfinterp.c ldso/ldso/avr32/elfinterp.c ldso/ldso/bfin/elfinterp.c ldso/ldso/cris/elfinterp.c ldso/ldso/dl-hash.c ldso/ldso/i386/elfinterp.c ldso/ldso/m68k/elfinterp.c ldso/ldso/mips/elfinterp.c ldso/ldso/powerpc/elfinterp.c ldso/ldso/sh/elfinterp.c ldso/ldso/sh64/elfinterp.c ldso/ldso/sparc/elfinterp.c ldso/ldso/x86_64/elfinterp.c ldso/ldso/xtensa/elfinterp.c ldso/libdl/libdl.c Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20Add protected symbols support for all architecturesSalvatore Cro
Protected symbols are global symbols for which interposition is not allowed. We manage them in generic _dl_lookup_hash function. To handle protected symbols we need to get a reference to the module that defines the symbol itself. So we pass a new parameter 'struct symbol_ref' to the __dl_lookup_hash that is defined as below: struct symbol_ref { const ElfW(Sym) *sym; struct elf_resolve *tpnt; }; The tpnt field is used as an ouput parameter and refers to the module which defines the protected symbol. Further it can be used as output parameter for TLS relocations and FDPIC case. The sym field is instead used as an input parameter to detect the visibility of the symbol we are looking-up. In this way we get rid of different signatures for _dl_lookup_hash, allowing to remove the _dl_find_hash wrapper. This new structure is also suitable for prelink integration. Signed-off-by: Salvatore Cro <salvatore.cro@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20Revert "ldso_sh: add support for protected symbols to SH"Carmelo Amoroso
This reverts commit 74407db52d3953c7f3c6b8a53661cfc96cb07e22. The generic implementation will cover all the architectures handling the protected symbols in _dl_lookup_hash [ldso/ldso/dl-hash.c] Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2010-09-24Merge commit 'origin/master' into prelinkCarmelo Amoroso
Conflicts: ldso/ldso/sh/elfinterp.c Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2010-09-24ldso_sh: add support for protected symbols to SHSalvatore Cro
Protected symbols should not be overridden by symbols from other modules. Such symbols are exported i.e. globally visible, but references from whithin defining modules are satisfied locally. Signed-off-by: Salvatore Cro <salvatore.cro@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2010-09-17ldso: Add support for LD_WARN and LD_TRACE_PRELINKINGFilippo Arcidiacono
Added support for the following tracing capabilities: - LD_WARN to warn about undefined symbols during the lookup stage. - LD_TRACE_PRELINKING to trace the needed libraries of the object that we are prelinking. Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2010-09-17ldso: Rework global scope handling and symbol lookup mechanismFilippo Arcidiacono
Global symbol scope is implemented as a linked list of local scope, that dynamically grows and shrinks when dlopen/ dlclose are called. Each local scope is implemented as an array of pointer to struct elf_resolve. This will help to detect conflict when LD_TRACE_PRELINKING option will be implemented. Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2010-04-12silence warning about undefined preprocessor tokenBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-11-15ldso: Add missing newlines to some debug messagesBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-10-15ldso: clean up breakage in tls mergeMike Frysinger
The TLS merge 534661b91c9849 introduced multiple style problems as well as random breakage: - missing _dl_free - incomplete parametrization of _dl_lookup_hash - restore FDPIC handling in _dl_lookup_hash Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-06trim whitespaceBernhard Reutner-Fischer
and wrap superlong line. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-09-26ldso/: tls support for dynamic linkerAustin Foxley
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2009-01-28Remove check for the relocation type check in the resolver,Carmelo Amoroso
from all archs. Signed-off-by: Jiri Olsa <olsajiri@gmail.com>
2008-09-29sh_ldso: Fix typo: missing semi-colon.Carmelo Amoroso
2008-09-29Fix comment.Carmelo Amoroso
2008-09-29ldso: allow undefined references to weak symbolsCarmelo Amoroso
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2006-06-19eat extraneous ; and insert some whitespace where it belongsMike Frysinger
2005-11-21Partly undo earlier patch on vapier's requestPeter S. Mazinger
2005-11-21Guard debug_sym/debug_reloc, make sure elfinterp.c sees __SUPPORT_LD_DEBUG__Peter S. Mazinger
2005-08-09clean up whitespace/syntaxMike Frysinger
2005-07-07rip out all the duplicated debug code and move into a shared fileMike Frysinger
2005-03-29Moved the addition of load address from the fast pathJoakim Tjernlund
where possible. This will also make ldso smaller. However the patch touches all archs and I have only tested PPC and x86.
2004-11-10Add RTLD_LOCAL support for dlopened libs. Reported byJoakim Tjernlund
Andrew de Quincey, who has been most helpful getting this sorted out, thanks. Thanks also to Peter Mazinger who did alot of testing. Removed all traces of dl_parse_copy_information() since it is no longer used.
2004-09-23Don't allow undefined global symbols to pass.Joakim Tjernlund
Move COPY relocs back to _dl_do_reloc().
2004-08-26Stefan Allius writes:Joakim Tjernlund
"I fixed the _dl_parse_copy_information in the same way than for the powerpc and it works fine for me. You may luck at the patch for the powerpc/elfinterp.c, where I change the paramter of a dl_dprintf statement. Now we use the same parameters than for the relocation copy." Arch mantainers, please do the same. When all arches has been fixed, we can remove of _dl_parse_copy_information, it is just a waste of CPU cycles.
2004-08-25Patch from Stefan Allius:Joakim Tjernlund
Remove unused function parameter in ldso. Remove echo option '-e' since it is not supported on Solaris.
2004-08-17Let ldso decide if it should relocate itselft a second time. ThisJoakim Tjernlund
is needed if ldso should use libcs malloc whenever possible. Fix RTLD_LAZY propagation to RTLD_NOW relocation when requested by libdl.
2004-02-14Give gcc branch prediction some hits on obviously unlikely branchesEric Andersen
2004-02-14Joakim Tjernlund writes:Eric Andersen
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 ...
2004-01-29Modify interfaces for _dl_parse_relocation_information()Eric Andersen
_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.
2003-09-11Stefan Allius writes:Eric Andersen
Hello, my patch changed the format of the ldso debug output to the same format as on the i386 systems. By Stefan
2002-11-05Massive scrubbing of the shared lib loader error handling.Eric Andersen
Move all configuration options into the new config system. -Erik
2002-11-03Several SH lib loader patches by Stefan Allius <allius@atecom.com>Eric Andersen
and "M. R. Brown" <mrbrown@0xd6.org>
2002-10-01This commit contains a patch from Stefan Allius <allius@atecom.com> to changeEric Andersen
how uClibc handles _init and _fini, allowing shared lib constructors and destructors to initialize things in the correct sequence. Stefan ported the SH architecture. I then ported x86, arm, and mips. x86 and arm are working fine, but I don't think I quite got things correct for mips.
2002-09-12Add missing _dl_dprintf arguments, as noticed by Tero Lyytik�inen ↵Eric Andersen
<tero@paravant.fi>
2002-08-19some updates from Stefan Allius to make up the SuperH shared libEric Andersen
loader build properly. Mostly just sprinkling casts, and making static some things that should be static.
2002-08-08Patch from Stefan Allius and Edie C. Dost to add SuperHEric Andersen
shared library support. This also adds some cleaner error handling, which I (Erik) then ported over to x86 and arm. In addition Stefan added the following fixes: - in hash.c was the lvalue handling of global library functions wrong. To fix this I had to change the prototype of _dl_find_hash. (==> TIS and ELF spec. Vers. 1.2) - in ldso.c was the order of the .init sections calls wrong. Before we call the initialization code of a library we have to check that all dependend libraries are already initialized. This can easily made by calling it in the revers loading order. For this I added a previous pointer chain. - in ldso.c the ELF magics wasn't checked fo PPC, MIPS and SH architecture
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