| Age | Commit message (Collapse) | Author |
|---|
|
Added runtime prelink support to be able to run a prelinked
application; at process startup only the conflicts will be relocated.
This speed up the startup time.
Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
|
|
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>
|
|
The dynamic linker can be run either indirectly through running some
dynamically linked program or library (in which case no command line options
to the dynamic linker can be passed and, in the ELF case, the dynamic linker
which is stored in the .interp section of the program is executed)
or directly by running:
/lib/ld-uClibc.so.* [OPTIONS] [PROGRAM [ARGUMENTS]]
Stand-alone execution is a prerequisite for adding prelink capabilities
to uClibc dynamic linker, as well useful for testing an updated version
of the dynamic linker without breaking the whole system.
Currently supported option:
--library-path PATH use given PATH instead of content of the environment
variable LD_LIBRARY_PATH
(Mandatory for prelinking)
Not supported options:
--list list all dependencies and how they are resolved
--verify verify that given object really is a dynamically linked
object we can handle
--inhibit-rpath LIST ignore RUNPATH and RPATH information in object names
in LIST
This feature can be enabled by setting LDSO_STANDALONE_SUPPORT=y
Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
|
|
This patch will convert all the #ifdef USE_TLS and #if USE_TLS to
#if defined(USE_TLS) && USE_TLS.
By checking if the USE_TLS is defined before checking its value will result in
correct behavior for architectures not defining this config symbol.
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Acked-by: Carmelo AMOROSO <carmelo.amoroso@st.com>
|
|
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>
|
|
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
|
|
Signed-off-by: Ron Lee <ron@debian.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
|
|
It is controlled by ARCH_NEEDS_BOOTSTRAP_RELOCS macro.
Signed-off-by: Jirka <olsajiri@gmail.com>
Acked-by: Carmelo Amoroso <carmelo.amoroso@st.com>
|
|
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
|
|
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
|
|
|
|
A couple more target macros for ld.so to deal with FD-PIC support. We need
special code to compute the initial got and dpnt, and we need to pass extra
arguments to _dl_get_ready_to_run.
|
|
<hcegtvedt@atmel.com>
|
|
This reintroduces a mechanism identical to the DL_BOOT macro present in
older versions of uClibc. On Blackfin and FRV, we want to pass more
than one argument to _dl_start. We also want to do something special
before returning, so delete the warning when the START macro is defined.
|
|
This introduces a new SEND_EARLY_STDERR macro that is to be used in
dl-startup.c before ld.so is relocated. It is needed on Blackfin (and
frv) FDPIC since we have to use special tricks to get the address of a
string constant.
EARLY_STDERR_SPECIAL gets defined on such a machine and prevents
printing of debug strings inside the loop that relocates ld.so, since we
can't decide which of the two variants to use.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
the default
|
|
of __attribute__ ...
|
|
load_addr) which are computer later
|
|
|
|
|
|
about how each arch treats args
|
|
|
|
|
|
its requirements about initial bootstrapping
|
|
|
|
the other values
|
|
|
|
bitsize
|
|
sjhill, feel free to comment :)
|
|
|
|
|
|
|
|
|
|
where possible. This will also make ldso smaller.
However the patch touches all archs and I have only tested PPC and x86.
|
|
|
|
execution of ldso.
Added new asm for MIPS to be tested.
All arches should retest.
|
|
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__
|
|
|
|
|
|
- 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.
|
|
From Peter Mazinger.
|
|
|
|
|
