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2004-09-17Don't allow undefined global symbols to pass(all archs needs fixing,Joakim Tjernlund
but powerpc). If you are using buildroot and soft floating point, you may have to rebuild the libm.so library, copy it to staging_dir/lib and rebuild your application. Move handling of R_386_COPY back into _dl_do_reloc(all archs should do this). Adjust the first argument to _dl_memcpy as it looks wrong to have symtab[symtab_index].st_value as destination for the mem copy.
2004-09-16Don't allow undefined global symbols to pass(all archs needs fixing).Joakim Tjernlund
If you are using buildroot and soft floating point, you may have to rebuild the libm.so library, copy it to staging_dir/lib and rebuild your application. Cleanups as well.
2004-09-08Second attempt to fix the INIT/FINI order. This time I think I got it right :)Joakim Tjernlund
This needs testing with apps that have complex dependencies.
2004-09-07We do not use dl_iterate_phdr, so no need to define itEric Andersen
2004-09-07Use a more appealing name, matching the function prototypeEric Andersen
2004-09-03First attempt to fix the INIT/FINI ordering. Fingers crossed :)Joakim Tjernlund
2004-09-02Remove unused variables. From Peter Mazinger.Joakim Tjernlund
2004-08-31Dont mess with __curbrk in ldsoEric Andersen
2004-08-27#include "dl-startup.c into ldso.c, making ldso one compilation unit.Joakim Tjernlund
Now all functions and vaiables can be made static to reduce relocs. Basicly, all variables should be merged into one struct variable and then export that struct. Exported functions should be exported as functions pointers in the above struct. This will reduce the number of relocs inside ldso to a handful. Add -Bsymbolic to linker for ldso. This will resolve all functions (all JMP_SLOT goes away) and the remaining relocs are transformed into RELATIVE relocs.
2004-08-27Forgot to commit this file. Patch from Stefan Allius.Joakim Tjernlund
2004-08-27As Mike Frysinger notes, this code is still needed. IJoakim Tjernlund
misread this code and removed it, sorry. I printed the values of _dl_brkp and _dl_envp in ldso and got this when executing: ls: __curbrk: 0x300c16e0 __environ: 0x1008372c ldd: __curbrk: 0x300776e0 __environ: 0x3007759c why is__environ in the app when executing ls but not ldd?
2004-08-26Partial patch from Alexandre Oliva to update the frv portEric Andersen
2004-08-26Only print debug stuff when askedEric Andersen
2004-08-26Fixup a couple of warningsEric Andersen
2004-08-26Avoid multiple passes to perform mips GOT relocations, and doEric Andersen
the whole lot in a single pass. -Erik
2004-08-26Fixes from gentoo.Manuel Novoa III
2004-08-26Let ldso find libc's malloc function and set _dl_malloc_function.Joakim Tjernlund
This removes some crap in libdl.c(and future libs which needs to access ldso functions). What do you think?
2004-08-26Added test for RTLD_GLOBAL flag in _dl_find_hash().Joakim Tjernlund
Fixed a bug in libdl.c where the RTLD_GLOBAL was assigned wronly.
2004-08-26Relocations of the application's global GOT entries were not being run, andEric Andersen
only the global GOT entry relocations for the loaded shared libs were being handled. This made applications segfault when using un-fixedup symbols. After many hours debugging to track down the problem, this patch makes the mips port happy again. -Erik
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.
2004-08-25Joakim Tjernlund writes:Eric Andersen
Hi Manuel & Erik I think I know why MIPS is broken. _dl_perform_mips_global_got_relocations() is broken. It will due to my latest changes reloctate ldso. This function needs to die and its job should be done inside _dl_parse_relocation_information(). It is mostly a copy and paste job, Also PERFORM_BOOTSTRAP_GOT and PERFORM_BOOTSTRAP_RELOCATION should be fixed, they use symbols which aren't passed as arguments. Jocke
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.
2004-08-25Hopefully fix Laszlo and Jacobs dlopen problem.Joakim Tjernlund
2004-08-19'pagesize' was local to dl-startup.c. In ldso.c we needEric Andersen
to use '_dl_pagesize' -Erik
2004-08-19Fix dependencies.Manuel Novoa III
2004-08-19Accunt for ELF_MACHINE_PLTREL_OVERLAP when relocating ldso.Joakim Tjernlund
2004-08-19Remove poor man's malloc. Not needed anymore.Joakim Tjernlund
2004-08-19Move "debug_addr" ptr from dl-startup.c to ldso.cJoakim Tjernlund
2004-08-19Move the app specific stuff from dl-startup.c to ldso.c.Joakim Tjernlund
2004-08-19Oops, forgot to remove unused variable.Joakim Tjernlund
2004-08-19This is now done in ldso.cJoakim Tjernlund
2004-08-18Clean up the _dl_boot code and make it similar to arm and sh.Joakim Tjernlund
2004-08-17Carl SHAW writes:Eric Andersen
I finally tracked down the problem with SH4 shared library loading - in file ldso/ldso/sh/dl-startup.h, the line #define DL_BOOT(X) static void __attribute_used__ _dl_boot2 (X) should be #define DL_BOOT(X) static void* __attribute_used__ _dl_boot2 (X) otherwise the application code will never be called and _dl_boot will just return causing a segmentation fault. Carl
2004-08-17David McCulloug writes:Joakim Tjernlund
"There's a bug in the SH asm, it calls into 'C' code without preserving all the important scratch registers. I have been meaning to double check the changes as I think more registers need to be saved, then I was going to send it back to uClibc. From the sound of it this isn't your problem, but you never know. Attached is the patch as it stands for the loader on SH." Glibc appears to do the same.
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.
2004-08-17Fix make clean rule.Joakim Tjernlund
2004-08-16The pagesize variable used when starting up is _not_ the sameEric Andersen
as the _dl_pagesize global, so do not alias the global. -Erik
2004-08-13Fixup PAGE_SIZE problemsEric Andersen
-Erik
2004-08-13Fix usage_count in ldso/libdl.Joakim Tjernlund
Don't' use atexit in libdl. Make destrutor in libdl actually run and to dlclose all dlopened libs. Remove dlclosed libs from the _dl_symbol_tables list.
2004-08-10Optimze _dl_memset() for PowerPC.Joakim Tjernlund
Other arches may also benefit from this iff it can do unaligned stores.
2004-08-10Forgot _dl_memcpy in previous checkin.Joakim Tjernlund
2004-08-10_dl_strlen,_dl_strcat,_dl_strcpy,_dl_strcmp,_dl_strncmp,Joakim Tjernlund
_dl_strchr,_dl_strrchr,_dl_strstr,_dl_memcmp: Optimize for archs which can do pre increment/decrement and load/store in one instruction.
2004-08-10_dl_get_last_path_component:Joakim Tjernlund
handle "" strings and optimze it. _dl_simple_ltoa,_dl_simple_ltoahex: Optimize for archs which can do pre increment/decrement and load/store in one instruction.
2004-08-10Revmoved _dl_brkp and _dl_envp. They are not needed anymore.Joakim Tjernlund
2004-08-10Mike Frysinger writes:Joakim Tjernlund
i was sticking some libraries in non-standard (i.e. not-hardcoded) paths and then updating ld.so.conf accordingly ... oddly though, i couldnt get binaries that linked against those libraries to run ... `ldconfig -v` showed the required libraries being detected/cached, so something seemed wrong ... turns out the libraries were being tagged as LIB_ELF_LIBC0 in the cache and the loader currently only accepts LIB_ELF_LIBC{5,6} ... since readsoname.c in ldconfig defines needed_tab with the mapping 'libc.so.0' -> LIB_ELF_LIBC0 it seems like the loader should accept this type too find attached a small patch which adds LIB_ELF_LIBC0 along side LIB_ELF_LIBC{5,6} as an accepted lib type in the loader when dealing with the ld.so.cache file
2004-08-10Mike Frysinger writes:Joakim Tjernlund
in libdl, the XXFLAGS is set incorrectly if DODEBUG=y ... it has 'I.' added to it instead of '-I.' ... this of course pisses of gcc :) find attached a patch that cleans up the XXFLAGS setting so as to minimize this kind of thing ... when asked, mjn3 said it was a kosher idea ;) and later writes: hmm it seems ldso also utilizes USE_CACHE in the code (but LIBRARY_CACHE never propogates down to the Makefiles) so the fix is to add $(LIBRARY_CACHE) while setting $(XXFLAGS) Applied with minor fixes and also fixed up ldso/Makefile to match libdl/Makefile.
2004-08-09This should fix the dlsym problem Peter van Hoyweghen reported.Joakim Tjernlund
However RTLD_LOCAL still doesn't work. Everything is RTLD_GLOBAL.
2004-08-06Joakim Tjernlund writes:Eric Andersen
PPC32, SPARC32/64 and S390 includes the PLT in its RELA size. This caused ldso to always do unlazy relocation of the JMPRELs. This patch fixes it.
2004-08-06Joakim Tjernlund writes:Eric Andersen
This patch makes -fpic work for PCC and optimzes the relcation by moving the cache flushing stuff to JMP relocs only. Actually PPCs ldso can only handle small GOT tables(<=8192 entries)anyhow, so it makes little sense to compile PPC with -fPIC. libuClibc shrunk from 340724 to 330780 bytes with -fpic.
2004-07-30s/___brk_addr/__curbrk/gEric Andersen
Some utilities, such as valgrind, have a legitimate reason to know the address of the current brk. Since we know such utils will peek under our skirt, we might as well give them what they expect and not use a gratuitously different symbol name. -Erik
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