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2012-06-15ldso: use _dl_strdup and _dl_dprintf only in ld-uClibc.soPeter S. Mazinger
Add support for %p to _dl_dprintf for later corrections in debug messages. Disable _dl_debug_file if LD debugging is not enabled and change it's use to 2. The use of dprintf in elfinterp.c will spit out warnings, will be fixed in the reworked ldso. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-03-29ldso: mark _start hiddenMike Frysinger
There's no need to export this symbol, so mark them all hidden. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-10-14ldso: silence harmless warning for !LDSO_PRELINK_SUPPORTBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-10-06ldso: merge duplicate dl-syscalls.h code to common headerMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-10-01ldso: constify reloc array itselfMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-06Merge remote-tracking branch 'origin/master' into prelinkCarmelo Amoroso
* origin/master: (137 commits) utils/ldd: Check for returned pointer from strrchr not the value it holds cris: add provide arch-specific vfork implementation lutimes.c, stubs.c: fix compiling lutimes, if __NR_utimensat is not defined bump version to 0.9.32-rc3-git release 0.9.32-rc3 memalign: include sys/param.h for MAX arm/bits/atomic.h: Include common/bit/atomic.h for thumb1 wctype.h: fix libc_hidden_proto for iswupper and add it for iswspace add libc_hidden_proto for wcs[n]casecmp_l really fix missing __libc_drand48_data Revert "missing prototype of __libc_drand48_data fixed" missing prototype of __libc_drand48_data fixed time.c, time.h: remove unused hidden strftime/strptime nanosleep.c: remove duplicated libc_hidden_proto ctype.c, ctype.h: remove commented parts that were banned for removal after 0.9.31 _wctype.c, wctype.h: remove unused isw* and wctype_l hidden functions time.c, wchar.h: remove unused hidden wcsftime str[n]casecmp.c: fix hidden usage remove unused hidden functions frv/memset.S: add missing libc_hidden_def ... Conflicts: ldso/ldso/ldso.c Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-03-03initialize tls_tpnt to NULL on all archsPeter S. Mazinger
Initialize tls_tpnt to NULL on all archs instead of 0. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
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>
2010-10-11ldso: Extend prelink support for all other achitecturesFilippo Arcidiacono
Update Arch specific part of the dynamic linker to the latest cahnges required by prelink: - Use _dl_loaded_modules->scope as global symbol scope - Pass the sym argument (or NULL) to the _dl_find_hash - Update _dl_parse, _dl_do_reloc, _dl_do_lazy_reloc and _dl_parse_relocation_information to reflect the change of the scope argument's type - Add the call to _dl_debug_lookup used for trace prelinking. 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>
2009-10-15ldso: 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>
2009-10-06commentary typo fixBernhard Reutner-Fischer
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>
2009-04-11for sparc v8 MAGIC1 was defined incorrectlyaustinf
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2009-03-05Use __always_inline instead of __inline__Carmelo Amoroso
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>
2009-01-14ldso: performs bootstrap relocations only if required by the arch.Carmelo Amoroso
It is controlled by ARCH_NEEDS_BOOTSTRAP_RELOCS macro. Signed-off-by: Jirka <olsajiri@gmail.com> Acked-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2009-01-04ldso/ldso/dl-startup.c: make _dl_elf_main static; remove one dead variable.Denis Vlasenko
ldso/ldso/avr32/dl-startup.h: remove superfluous definition of START() macro. ldso/ldso/*/dl-startup.h: fix a typo in comment text data bss dec hex filename - 16752 244 92 17088 42c0 lib/ld-uClibc.so + 16709 240 92 17041 4291 lib/ld-uClibc.so
2008-12-03- Use runtime pagesize (Jeremy Kerr)Bernhard Reutner-Fischer
Some powerpc machines can support 64k pages, enabled by the CONFIG_64K_PAGES option in linux. However, the uClibc dynamic loader won't currently work on these machines, as it uses hard-coded values (PAGE_ALIGN, ADDR_ALIGN and OFFS_ALIGN) in the ldso architecture-specific headers. When running on a kernel with 64k pages, ld.so tries to mmap with 4k-aligned addresses, rather than 64k, so mmap fails with -EINVAL. When booting a 64k machine with a uClibc dynamic linker, init fails with: /init:500: can't map '/lib/libc.so.0' /init:500: can't map '/lib/libc.so.0' /init:500: can't map '/lib/libc.so.0' /init: can't load library 'libc.so.0' Kernel panic - not syncing: Attempted to kill init! This change allows ld.so determine these alignment masks at runtime, rather than compile-time. Since we have the _dl_pagesize variable available, we can use that to generate the appropriate masks. Since almost all of the architectures can use the common definitions for the _ALIGN macros, we can consolidate them all in ldso.h, and override in the sysdep headers where necessary (ie, mips). This allows me to start a uClibc-based root fs on a 64k machine. Signed-off-by: Jeremy Kerr <jk at ozlabs org>
2008-09-15- commentary typo fixBernhard Reutner-Fischer
2008-08-06- some more asm keyword fixes (Yann E. MORIN)Bernhard Reutner-Fischer
2008-07-23- trim any trailing whitespaceBernhard Reutner-Fischer
2008-07-23- fix inline keywordBernhard Reutner-Fischer
2008-07-23- fix asm and volatile keywordsBernhard Reutner-Fischer
2008-05-28Fix the ELF magic number for SPARCV9: by Friedrich Oslage ↵Carmelo Amoroso
<bluebird@porno-bullen.de>
2008-04-24- fixup asm. No object-code changesBernhard Reutner-Fischer
2007-09-15Blue Swirl writes:Mike Frysinger
I got the library to compile with the attached patches, though dynamic loader crashes early. In buildroot I changed the architecture name by hand from sparc to sparc64, otherwise the compiler produced 32-bit files with V9 (64-bit) instructions. This configuration is not supported by QEMU, so I aimed for pure 64-bit. I think Sparc64 option needs to be added to buildroot. The _Qp_ ops seem to be required by the ABI. This and setjmp patches are just hacks to get the compilation further. The _Qp_ ops can be found in glibc, would it be OK to use those? V9 assembler requires declarations for global register use. The mem* functions in sparc32 directory did not work. They are actually used only by the hybrid 32-bit + V9 CPU configuration.
2007-07-18Apply patch as submitted by Blue Smurfy Swirly <blauwirbel@gmail.com> for ↵"Steven J. Hill"
Sparc32.
2006-02-01disable lazy code for nowMike Frysinger
2006-01-19update sparc code using x86_64 as a templateMike Frysinger
2006-01-19first pass at updating sparc ldso with code from glibcMike Frysinger
2006-01-19update syscall macros so both ldso and libc can use themMike Frysinger
2006-01-19move a bunch of arch-specific checks out of common files and into an arch ↵Mike Frysinger
specific header file to make porting/updates a lot easier
2006-01-17cut out unused codeMike Frysinger
2006-01-11need to include bits/sysnum.h for all of our __NR_* defsMike Frysinger
2005-08-15move arch-specific checks out of shared dl-syscall.h and into arch-specific ↵Mike Frysinger
dl-syscalls.h
2005-07-08whitespace clean upMike Frysinger
2005-07-08help if i named the var correctly ...Mike Frysinger
2005-07-08dl-debug.h for sparcMike 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.
2005-03-17General arch cleanup and prepare support for standaloneJoakim Tjernlund
execution of ldso. Added new asm for MIPS to be tested. All arches should retest.
2005-03-16cleanup & standardizeMike Frysinger
2005-03-16add hack like m68k so it *builds* again ... probably needs to be cleaned up ↵Mike Frysinger
like m68k though ...
2005-03-16make it compile againMike Frysinger
2005-03-14Generalize optimized relative reloc procesing.Joakim Tjernlund
Add elf_machine_dynamic() and elf_machine_load_address() for all archs. elf_machine_dynamic() replaces the #ifdef mess to get at the GOT. elf_machine_load_address() is needed to execute ldso directly, this is not complete yet. I probably broke one or two archs(only tested PPC) so please try and report problems. For a report to be useful you need to enable __SUPPORT_LD_DEBUG_EARLY__ and __SUPPORT_LD_DEBUG__
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.
2004-09-23Make do_rem() safe. From Peter Kjellerstedt.Joakim Tjernlund
2004-09-23Don't allow undefined global symbols to pass.Joakim Tjernlund
Move COPY relocs back to _dl_do_reloc().
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.
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