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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Generic ones were broken on x86_64, pthread/ex2 test failed while pthread/ex5
worked fine. So use arch-specific functions and fix linkage failure with
__pthread_mutex_cond_lock_adjust.
Signed-off-by: Roman I Khimov <khimov@altell.ru>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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They were present in sources, but not compiled in. Generic routines are
broken badly on x86_64, even basic threading test like pthread/ex1 didn't
work with them.
Signed-off-by: Roman I Khimov <khimov@altell.ru>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Temporary file name template passed to __gen_tempname had no "XXXXXX" in it,
so __gen_tempname returned EINVAL which led to sem_open failure.
Fixes NPTL tests tst-sem4, tst-sem7, tst-sem8, tst-sem9.
Signed-off-by: Roman I Khimov <khimov@altell.ru>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Andreas Schultz <andreas.schultz@gmail.com>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Roman I Khimov <khimov@altell.ru>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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also sync up not-cancel.h headers between all three thread libraries
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Update all the nptl clean targets (both objects and headers) to
use the new syntax using CLEAN_<full_path> and HEADER_<full_path>.
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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NPTL build for x86_64 failed with
LD libthread_db-0.9.32-git.so
.../ld: libpthread/nptl_db/libthread_db_so.a(td_ta_event_getmsg.oS): relocation R_X86_64_PC32 against undefined symbol `__GI_memset' can not be used when making a shared object; recompile with -fPIC
Signed-off-by: Roman I Khimov <khimov@altell.ru>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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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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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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If libpthread get's pulled in via dlopen(), we need to do libpthread
initialization in dlopen(). Achieve this by making initializer function
out of __pthread_initialize_minimal_internal. Add the proper linker
flags and make it callable multiple times.
Add also nodelete flag which ensures that libpthread will not get
unmapped after it's been loading. Though, ld.so does not yet
support this.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Final iteration to fix libc internal locking if libpthread is pulled
in by dlopen call (directly or indirectly).
We cannot really use the weak symbol trick for shared build, since
the symbols won't get refreshed if libpthread is pulled in dynamically.
In glibc, they have #ifdef SHARED magic to either use pthread_functions
table, or weaks. But as we shared object files with both builds, this
does not sounds good either.
The reintroduces the libc weaks.c, but uses them now only with static
build. For dynamic build, we still use the symbols with same name, but
provide weaks in forward.c so they end up dereferencing the
pthread_functions table indirectly if we are not linked to libpthread.
Mutex initialization is hard coded as inline, as it needs to happen even
if libpthread is not initially loaded.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Stdio locking macroes do:
void *__self = THREAD_SELF;
But THREAD_SELF uses __self also internally which causes shadowing
warnings. Just rename the outer variable for now. Might be an idea
to convert the macroes to static inline functions.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Since sublevel releases are not ABI compatible we need to adjust
the soname to include the sublevel version.
This makes it possible to install ABI incompatible versions of the
library side by side so clean upgrades are possible.
Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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The libc stubs should never override the libpthread provided
functions inside libpthread, otherwise the struct pthread_functions
that is used by the forwarder stubs goes bad.
Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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It is not possible to override for libpthread to override
the weak libc definitions. This has never worked in uclibc, and
does no longer work in glibc either (unless you use LD_DYNAMIC_WEAK).
The proper thing to do is have weak prototypes in libc, and
definitions in libpthread only. This way libc runs even if
those functions are not defined, but just needs to protect
against the NULL values (done by implementing __uclibc_maybe_call).
This fix the problems if libc is linked before libpthread or
if libpthread is pulled by a dependency library.
Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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This reverts most of commit 1610762362e651f86ca284ac59a1d7ec88034e4e.
Marking the symbols hidden is wrong, because libc accesses
the pthreads internal symbols for internal locking.
Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Currently the stub calls would
demangle the pointer that is never mangled. Alternatively, we could sync
nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c with new glibc version
that properly mangles the pointers, but that would need more validation
to make sure that all struct pthread_function readers do demangling.
uclibc currently does not do pointer mangling everywhere so it's more
consistent to just disable it here too.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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uClibc requires the threading library to enable locking for
stdio, or the locking is not done at all.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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uClibc requires the threading library to enable locking for
stdio, or the locking is not done at all.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Add attribute_hidden to all symbols having libc forwarder. This prevents
recursive self calls which would happen if libc is before libpthread in
linking order: the forwarder functions would call itself via the function
table, since the libpthread symbols would get overwritten with libc ones.
This has not been a problem in glibc since there these symbols are marked
hidden with linker version-script. Since we don't use one, we need to mark
these explicitly.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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i386 was missing a prototype for __tls_get_addr()
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Remove the -DUSE___THREAD from specific assembler files since its
used everywhere anyway.
This is a cleanup after 447a9d1cc181395c3e2ea77ea88e45dee4b30ce6
Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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avoids breakage with DODEBUG and lll_timedlock() constraints
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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NPTL defines errno as __thread variable. Define USE___THREAD so proper
errno assignment is used in assembly files.
This fixes segfault while building python.
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: Natanael Copa <natanael.copa@gmail.com>
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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fixes typo in a1ee5b32fc698297149c770417354441ee62701e which forgot to
rename __pthread_attr_getaffinity_np to pthread_attr_getaffinity_np.
Thanks to Andre DRASZIK for mentioning my omission.
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Conflicts:
Makefile.in
extra/Configs/Config.in
libc/sysdeps/linux/common/bits/kernel-features.h
libc/sysdeps/linux/common/poll.c
libc/sysdeps/linux/common/sysdep.h
libc/sysdeps/linux/sh/sysdep.h
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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* add library dependencies for libdl,libpthread
* fix typo in librt/Makefile.in
* also remove extra trailing slashes on i386, sparc pregen headers
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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* Introduce pregen-headers-y which is list of generated headers
during the build and add this to pregen target in top level makefile.
Also add nptl_headers, nptl_arch_headers, nptl_linux_headers
to this if compiling with nptl.
* Replace pthread_pregen var with pregen-headers-y.
* Make nptl_headers, nptl_arch_headers, nptl_linux_headers variables
instead of sub targets.
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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* The changes to clone.S needs testing
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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* This file is used during creation of real tcb-offsets.h
because lowlevellock.h from i386 also include tcb-offsets.h
and it is inturn included by tls.h and tls.h is used in
the dummy C file generated from tcb-offsets.sym, it created
a catch-22
Signed-off-by: Khem Raj <raj.khem@gmail.com>
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This patch fixes a build problem into the lowlevellock.S
when support FUTEX_CLOCK_REALTIME (kernel newer than 2.6.29).
__have_futex_clock_realtime symbol is not defined when set
__ASSUME_FUTEX_CLOCK_REALTIME. The same is on i386 arch.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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also fix up clone.S from sync
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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also cleanup some PIC (should be __PIC__) that snuck in
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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bit archs
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
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Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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