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text data bss dec hex filename
- 16709 240 92 17041 4291 lib/ld-uClibc.so
+ 16634 236 92 16962 4242 lib/ld-uClibc.so
- 4602 344 4 4950 1356 lib/libdl-0.9.30-svn.so
+ 4571 328 4 4903 1327 lib/libdl-0.9.30-svn.so
- 4602 344 4 4950 1356 lib/libdl.so
+ 4571 328 4 4903 1327 lib/libdl.so
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Currently we have an implementation in ld.so and libdl.a.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
SIgned-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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While compiling trunk on ARM with GCC 4.2 and enabling LDSO_GNU_HASH_SUPPORT I stumbled upon this problem.
GCC made a call to libgcc function __aeabi_uidivmod()->__div0()->__raise() and raise is not yet compiled in at the time of compiling ldso
so I got well known undefined symbol __raise problem
This patch uses the do_rem () macro to do the same operation.
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of elf_resolve's loadaddr field for the main application.
Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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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.
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will set the type of common symbols to STT_COMMON
instead of STT_OBJECTS, so the dynamic linker needs
to handle this type os symbols too.
Same changes have been added to glibc (See: bugzilla #5104).
This patch ensures the uclibc will work with later bintuils.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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the lookup over next DSO.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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ELF symbol names are arbitrary 0-terminated sequences of bytes, and the
ELF hash function is defined in the ELF specification to use unsigned
char. Thus uClibc's _dl_elf_hash, using plain char, breaks when char is
signed and symbol names contain bytes with the high bit set, as with GCC's
ucnid-* tests. This patch fixes this problem.
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called to resolve DLL PLT entries. The assembler is changed to be thumb
compatible and slightly faster, the C function, _dl_linux_resolver (note
the extra r) is changed to take a byte address in place of an 8 byte
count (faster in caller and callee, and slightly easier to understand).
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bitsize
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optimization level chosen. This allows uClibc to be compiled with the
latest GCC-4.1.0. While tracking down the specific culprit causing
the segmentation fault of the dynamic loader with GCC-4.1.0 I was
able to force inlining of other functions such that I shaved 512 bytes
off the size of the loader, yay. Also fixed warning in 'dl-hash.c'.
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taken from glibc.
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where possible. This will also make ldso smaller.
However the patch touches all archs and I have only tested PPC and x86.
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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.
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- 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.
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Fixed a bug in libdl.c where the RTLD_GLOBAL was assigned
wronly.
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However RTLD_LOCAL still doesn't work. Everything is RTLD_GLOBAL.
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tree. Bad boy, No doughnut.
-Erik
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aligned pointer that may be aligned up to page_size. Also add _dl_free,
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Make old weak symbol handling work, if someone wants to
enable it.
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white space cleanup and optimize the inner loop in dl_find_hash.
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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 ...
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Hi again
All dltest* and test* programs pass for me.
uClibc ld.so resolves according to the OLD weak symbol handling.
I have tried to use the new scheme as well, but that segfaults in all
cases but test3.
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libraries multiple times, wasting memory and causing different libraries to use
different symbol sets, some of which were not properly resolved.
Continue scrubbing ld.so and converting it to use proper types.
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pointer. Fix printing of '0x0x' in ldd output. Simplify discrimination of
libname, so doing things like dlopen("./libfoo.so",RTLD_NOW) with a leading
"./" in the path will work as expected.
-Erik
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dlopen and have it be successful. This required moving some
things out of ldso.c into readelflib1.c, and directly including
hash.c and readelflib1.c into dlib.c when building the static
version of the library.
-Erik
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