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2012-06-15linuxthreads.old: cleanup a bitPeter S. Mazinger
Use __UCLIBC_HAS_TLS__ instead of USE___THREADS (although this LT implementation will never support TLS). Disable unused/unneeded members of the pthread_functions structure. No redirect/forward for _pthread_cleanup_push/pop, it would have not worked anyway due to the fact, that the structure member was not initialized. Disable it's possible internal use in libc-lock.h. Avoid using internals.h in libc_pthread_init.c (moving a prototype to pthread-functions.h). Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15linuxthreads.old: remove __old_sem_* and rename __new_sem_* to sem_*Peter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15wrapsyscall.c: add cancellable fcntl64Peter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15ptfork.c: use strong_alias for vforkPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15internals.h: use sysconf(_SC_PAGESIZE) instead of __pagesizePeter S. Mazinger
Rename PAGE_SIZE to __PAGE_SIZE to be sure that we do not get the definition from uClibc_page.h. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15wrapsyscall.c: include proper header for epollPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15allocrtsig.c,pthread.c: disable __libc_allocate_rtsig, unusedPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15cleanup fork()Peter S. Mazinger
Keep only fork (and it's hidden variant) and __libc_fork. Common __libc_fork prototype in unistd.h. Get rid of __fork, by changing HIDDEN_JUMPTARGET(__fork) to use fork I can't see the reason to have fork() in libpthread, but kept it for now making __fork static in these files. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15semaphore.h, uClibc_local_lim.h: make sure SEM_VALUE_MAX is always definedPeter S. Mazinger
LT old and new provided SEM_VALUE_MAX in semaphore.h, NPTL in local_lim.h Make sure to get the same definitions, independently of the fact, that semaphore.h is included or not. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15semaphore.c: include limits.h before semaphore.hPeter S. Mazinger
else SEM_VALUE_MAX will be undefined Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15make use of jmpbuf-offsets.h and jmpbuf-unwind.hPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15move *longjmp related prototypes to setjmp.hPeter S. Mazinger
Provide common prototypes for __longjmp, __libc_longjmp, __libc_siglongjmp _longjmp_unwind, __libc_unwind_longjmp in setjmp.h in preparation for use in LT new Add __longjmp to h8300 and i960 Make common longjmp.c good for NPTL Guard _longjmp_unwind use in sh's longjmp.c for NPTL (I think sh could use the common one) Remove unneeded attribute_noreturn, prototype provides it already Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15signal.h: provide prototype for __libc_sigaction and remove all othersPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15remove __FORCE_GLIBCPeter S. Mazinger
Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-06-15do not include libc-internal.hPeter S. Mazinger
it is already included by features.h Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2012-05-05linuxthreads.old: fix build warnings with epoll enabledMike Frysinger
Pull in the epoll header for the epoll structs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-24linuxthreads.old: refactor nommu logic a little to avoid mmu warningMike Frysinger
Should be no functional changes; just fixing: libpthread/linuxthreads.old/manager.c: In function 'pthread_free': libpthread/linuxthreads.old/manager.c:707:9: warning: variable 'h_bottom_save' set but not used [-Wunused-but-set-variable] Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-24linuxthreads.old: pass back up saved_errno value in manager initMike Frysinger
This matches the newer linuxthreads code, and fixes the build warning: libpthread/linuxthreads.old/manager.c: In function 'pthread_handle_create': libpthread/linuxthreads.old/manager.c:487:7: warning: variable 'saved_errno' set but not used [-Wunused-but-set-variable] Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-24linuxthreads.old: fix set-but-unused warningMike Frysinger
Move spin_count down to the code block where it's used to fix the warning: libpthread/linuxthreads.old/spinlock.c: In function '__pthread_lock': libpthread/linuxthreads.old/spinlock.c:70:7: warning: variable 'spin_count' set but not used [-Wunused-but-set-variable] Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-24linuxthreads.old: fix typo in pthread_mutex_unlock hidden prototypeMike Frysinger
Reported-by: Tony Wu <tung7970@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-22linuxthreads.old: only declare __pthread_xxx funcs hidden inside of libpthreadMike Frysinger
These stubs get used in libc as forwarding funcs, so we don't want them labeled as hidden. Otherwise, attempting to use them in other libraries (like libdl) will result in references to symbols that only libpthread provides. Such as: /usr/bin/python2.6: can't resolve symbol '__pthread_mutex_lock' in lib '/lib/libdl.so.0'. This also brings the old code in line with the newer linuxthreads. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-10-27sparc: fix build for linuxthreads.oldRob Landley
sparc target has assembly implementations of clone.S that doesn't get used, and thus the build breaks. Also, sparc is missing a header file in pthreads.old that exists in pthreads.new. Signed-off-by: Rob Landley <rob@landley.net> Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2011-05-13epoll.c: add cancellation to epoll_[p]wait()Peter S. Mazinger
While there, fix epoll_pwait syscall, it takes 6 arguments Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-05-11commentary typo fixBernhard Reutner-Fischer
use cancellation (with two 'l') uniformly. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-03-05The C6X portAurelien Jacquiot
This adds support for the TI C6X family of processors. Signed-off-by: Mark Salter <msalter@redhat.com> Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>
2011-03-05Allow ABIs where SP points below the stack frame.Bernd Schmidt
On C6X, the stack pointer points to a word that is not part of the current function's stack frame. It may be overwritten by callees. Take this into account when creating the stack for a cloned thread. Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>
2011-03-05Add Makefile support for DSBT ELF.Bernd Schmidt bernds_cb1@t-online.de
This adds support for a new binary format, DSBT ELF, to the Makefiles. Every shared library is assigned a DSBT index, and the link.so macro is adjusted to ensure the correct linker argument is passed. Configuration and ldso support will follow in separate commits. Signed-off-by: Bernd Schmidt <bernds@codesourcery.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-03-03remove ucontext.h and guard sigstack structure with SUSV4_LEGACY and ↵Peter S. Mazinger
STRICT_HEADERS Remove ucontext.h if SUSV4_LEGACY is not set and fix it's references. Guard sigstack structure with SUSV4_LEGACY and STRICT_HEADERS. Disable sigstack function prototype, it is not provided by uClibc. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
2011-02-24linuxthreads.old: fix nommu initial thread stack detectionMike Frysinger
Because the nommu address space is flat, and the application stack can literally be located anywhere, we cannot rely on the assumptions that the mmu port gets away with. Namely, that the first thread's stack lives at the top of memory and nothing will be created above it. Currently, the code rounds the current stack up a page and sets that as the "top" of the stack, and then marks the "bottom" of the stack as "1". Then as new threads are created, this assumption is further refined by slowly backing off the "bottom" when a new stack is created within the range of the initial stack. Simple ascii example (tid0 is the initial thread): 1 thread: [bos tid0 stack tos] 2 threads: [ tid0 stack ] [tid1 stack] 3 threads: [ tid0 stack ] [tid1 stack] [tid2 stack] As you can kind of see, this algorithm operates on one basic assumption: the initial top of stack calculation is the absolute top of the stack. While this assumption was fairly safe in the original nommu days of yore where the only file format was FLAT (which defaults to a 4KiB stack -- exactly 1 page), and memory was fairly tight, we can see that this falls apart pretty quickly as soon as the initial stack is larger than a page. The issue that crops up now is simple to hit: start an application with an 8KiB stack, execute some functions that put pressure on the stack so that it exceeds 4KiB, then start up some threads. The initial tos will be rounded up by a page, but this is actually the middle of the stack. Now when the initial thread returns from its functions (thus unwinding the stack) and tries to call something which calls back into libpthread, the thread_self() func fails to detect itself as the initial thread as the current stack is now above the tos. The __pthread_find_self() func kicks in, walks all the thread arrays, fails to find a hit, and then walks into uninitialized memory for the thread descriptor. Use of this garbage memory has obvious results -- things fall down & go boom. To address this, I extend the current algorithm to automatically scale back both the bottom and the top stack limits of the initial thread. We use the current stack pointer at "thread boot time" only as a single known point. The initial thread stack bottom is set to the bottom of memory and the initial thread stack top is set to the top of memory. Then as we create new stack threads, we figure out whether the new stack is above or below the single known good address, and then scale back either the tos or the bos accordingly. Reviewed-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-11-10microblaze: thread supportSteven J. Magnani
Header files needed to build linuxthreads.old for microblaze. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2010-04-25enable building __fcntl_nocancel, as it used unconditionally nowAustin Foxley
also sync up not-cancel.h headers between all three thread libraries Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2010-04-22nptl: proper soname handlingNatanael Copa
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>
2010-03-25prettify make cleanBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-12-17check if USE_TLS is defined before useHans-Christian Egtvedt
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>
2009-11-22Revert "libc: add hidden calls to pthread cleanup funcs"Austin Foxley
This reverts commit e0ac4efbdb498319f03a2a95d75d061ab6c68491. Was causing segfaults on every pthread linked executable Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
2009-10-22libc: add hidden calls to pthread cleanup funcsMike Frysinger
A lot of libc code calls the pthread cleanup funcs implicitly (for stdio) which currently goes through the PLT. Since we already have forwarding symbols for these funcs, it's safe to declare the internal libc usage hidden as a loaded libpthread will have the real symbols found. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-18convert // comments to /**/; remove empty #if/#endif pairs. no code changesDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2009-09-18trim Experimentally off and uncommented hiddenBernhard Reutner-Fischer
sed -i -e '/Experimentally off - /d' $(grep -rl "Experimentally off - " *) sed -i -e '/^\/\*[[:space:]]*libc_hidden_proto(/d' $(grep -rl "libc_hidden_proto" *) should be a nop Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-08-17support building out-of-treeBernhard Reutner-Fischer
Handle O= Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2009-07-26linuxthreads.old: define pthread_yield to sched_yieldMike Frysinger
The pthread_yield() function in linuxthreads does the same thing as the standardized sched_yield() function, so add a simple define for it to make porting GNU apps easier. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-21linuxthreads.old: fix crash in debug codeMike Frysinger
If pthread_join() is called and there is nothing to join, then the debug code will attempt to dereference a NULL pointer. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-21libpthread: add format attribute to __pthread_message()Mike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-20linuxthreads.old: extend workaround for asm rename warningsMike Frysinger
The libc_pthread_init.c needs the include workaround like forward.c, and forward.c needs more includes now. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-05Don't shadow the mask parameter with a local variable in the same functionRon
Signed-off-by: Ron Lee <ron@debian.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-05Check #if feature test macros are defined where they may not beRon
Once again all of these reduce the noise from gcc-4.4. Replaces a few more (USE_TLS && HAVE___THREAD) with USE___THREAD while we need to mess with them for this anyhow. Signed-off-by: Ron Lee <ron@debian.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-05Provide token prototypes for functions that are external but have no headerRon
This cuts down on a lot of noise from gcc-4.4 Signed-off-by: Ron Lee <ron@debian.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-07-05Add noreturn attributes to some functions that won't ever do soRon
usage() is also made static in answer to warnings about no prototype. In __pthread_manager_event() we also have to drop the return statement, else gcc will in turn complain about a non-returning function having one. Signed-off-by: Ron Lee <ron@debian.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-09The attached patches fixes the problems found bringing up uclibc on coldfire Khem Raj
M5485 processor 1. Disable mmap2() if we're compiling for coldfire and fall back to mmap(). It seems to map a different file area on a 2.6.25 linux kernel. 2. Uses pc-relative addresing[1], computes ADDR_ALIGN, PAGE_ALIGN and OFFSET_ALIGN relatively to _dl_pagesize[3]. On coldfire/M5485 _dl_pagesize is 0x2000. Signed-off-by: Groleo Marius <groleo@gmail.com>
2009-02-25Reinstate __libc_foo's needed for linuxthreads.old.Denis Vlasenko
Now they are only enabled if linuxthreads.old are selected.
2009-01-21- commentary typo fixBernhard Reutner-Fischer
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