| Commit message (Expand) | Author | Age | Files | Lines |
|---|
| * | cut out a syscall on thread creation in the case where guard size is 0 | Rich Felker | 2011-03-16 | 1 | -1/+1 |
| * | don't expose EAGAIN, etc. from timed futex wait to caller | Rich Felker | 2011-03-16 | 1 | -1/+4 |
| * | implement flockfile api, rework stdio locking | Rich Felker | 2011-03-12 | 1 | -0/+1 |
| * | implement dummy pthread_attr_[gs]etschedparam functions•••for some reason these functions are not shaded by the PS/TPS option in
POSIX, so presumably they are mandatory, even though the functionality
they offer is optional. for now, provide them in case any programs
depend on their existence, but disallow any priority except the
default.
| Rich Felker | 2011-03-11 | 2 | -0/+14 |
| * | fix pthread_attr_* implementations to match corrected prototypes | Rich Felker | 2011-03-11 | 4 | -4/+4 |
| * | fix failure behavior of sem_open when sem does not exist | Rich Felker | 2011-03-10 | 1 | -1/+5 |
| * | fix some semaphore wait semantics (race condition deadlock and error checking) | Rich Felker | 2011-03-10 | 2 | -1/+7 |
| * | fix sem_open and sem_close to obey posix semantics•••multiple opens of the same named semaphore must return the same
pointer, and only the last close can unmap it. thus the ugly global
state keeping track of mappings. the maximum number of distinct named
semaphores that can be opened is limited sufficiently small that the
linear searches take trivial time, especially compared to the syscall
overhead of these functions.
| Rich Felker | 2011-03-10 | 2 | -33/+80 |
| * | optimize pthread termination in the non-detached case•••we can avoid blocking signals by simply using a flag to mark that the
thread has exited and prevent it from getting counted in the rsyscall
signal-pingpong. this restores the original pthread create/join
throughput from before the sigprocmask call was added.
| Rich Felker | 2011-03-10 | 1 | -4/+15 |
| * | security fix: check that cancel/rsyscall signal was sent by the process itself | Rich Felker | 2011-03-10 | 1 | -0/+3 |
| * | fix error handling for pthread_sigmask•••it must return errno, not -1, and should reject invalud values for how.
| Rich Felker | 2011-03-09 | 1 | -0/+10 |
| * | optimize pthread initialization•••the set_tid_address returns the tid (which is also the pid when called
from the initial thread) so there is no need to make a separate
syscall to get pid/tid.
| Rich Felker | 2011-03-09 | 1 | -2/+2 |
| * | simplify and optimize pthread_mutex_trylock | Rich Felker | 2011-03-08 | 1 | -17/+16 |
| * | rwlock trylock functions were wrongly returning EAGAIN instead of EBUSY | Rich Felker | 2011-03-08 | 2 | -3/+3 |
| * | fix major breakage in pthread_once (it was always deadlocking)•••the issue was a break statement that was breaking only from the
switch, not the enclosing for loop, and a failure to set the final
success state.
| Rich Felker | 2011-03-08 | 1 | -8/+7 |
| * | fix and optimize non-default-type mutex behavior•••problem 1: mutex type from the attribute was being ignored by
pthread_mutex_init, so recursive/errorchecking mutexes were never
being used at all.
problem 2: ownership of recursive mutexes was not being enforced at
unlock time.
| Rich Felker | 2011-03-08 | 3 | -25/+18 |
| * | implement pthread_mutexattr_[gs]etpshared functions | Rich Felker | 2011-03-08 | 2 | -0/+16 |
| * | disallow cpu time clocks as condattr clock values | Rich Felker | 2011-03-08 | 1 | -1/+1 |
| * | fix off-by-one error in sem_(timed)wait (using old sem value instead of new) | Rich Felker | 2011-03-07 | 1 | -1/+1 |
| * | use the selected clock from the condattr for pthread_cond_timedwait | Rich Felker | 2011-03-07 | 2 | -1/+2 |
| * | implement pthread_rwlockattr_* (essentially no-ops) | Rich Felker | 2011-03-07 | 4 | -0/+28 |
| * | implement pthread_condattr_* interfaces•••note that, while the attributes are stored, they are not used in
pthread_cond_init yet.
| Rich Felker | 2011-03-07 | 6 | -0/+45 |
| * | reject invalid attribute settings•••note that this is a pedantic conformance issue and waste of code. it
only affects broken code or code that is probing for conformance.
| Rich Felker | 2011-03-07 | 2 | -0/+2 |
| * | implement barrier attribute functions (essentially no-ops) | Rich Felker | 2011-03-07 | 4 | -0/+27 |
| * | enforce stack size min in pthread_attr_setstacksize | Rich Felker | 2011-03-04 | 1 | -1/+1 |
| * | implement POSIX semaphores | Rich Felker | 2011-03-04 | 10 | -0/+201 |
| * | optimize POSIX TSD for fast pthread_getspecific | Rich Felker | 2011-03-03 | 4 | -9/+14 |
| * | use rt_sigprocmask, not legacy sigprocmask, syscall in pthread exit code | Rich Felker | 2011-02-19 | 1 | -1/+1 |
| * | race condition fix: block all signals before decrementing thread count•••the existence of a (kernelspace) thread must never have observable
effects after the thread count is decremented. if signals are not
blocked, it could end up handling the signal for rsyscall and
contributing towards the count of threads which have changed ids,
causing a thread to be missed. this could lead to one thread retaining
unwanted privilege level.
this change may also address other subtle race conditions in
application code that uses signals.
| Rich Felker | 2011-02-19 | 3 | -22/+2 |
| * | make pthread_exit run dtors for last thread, wait to decrement thread count | Rich Felker | 2011-02-19 | 1 | -3/+3 |
| * | add pthread_atfork interface•••note that this presently does not handle consistency of the libc's own
global state during forking. as per POSIX 2008, if the parent process
was threaded, the child process may only call async-signal-safe
functions until one of the exec-family functions is called, so the
current behavior is believed to be conformant even if non-ideal. it
may be improved at some later time.
| Rich Felker | 2011-02-18 | 1 | -0/+48 |
| * | reorganize pthread data structures and move the definitions to alltypes.h•••this allows sys/types.h to provide the pthread types, as required by
POSIX. this design also facilitates forcing ABI-compatible sizes in
the arch-specific alltypes.h, while eliminating the need for
developers changing the internals of the pthread types to poke around
with arch-specific headers they may not be able to test.
| Rich Felker | 2011-02-17 | 23 | -83/+83 |
| * | patch by njk, simplifies thread register initialization for x86_64•••It's not necessary to save any registers on the stack across syscall in
x86_64 __set_thread_area. Don't waste cycles or bytes on it.
| Rich Felker | 2011-02-16 | 1 | -4/+0 |
| * | patch from njk: make x86_64 __uniclone branchless. | Rich Felker | 2011-02-16 | 1 | -6/+6 |
| * | Port musl to x86-64. One giant commit! | Nicholas J. Kain | 2011-02-15 | 3 | -0/+61 |
| * | finish unifying thread register handling in preparation for porting | Rich Felker | 2011-02-15 | 4 | -44/+25 |
| * | begin unifying clone/thread management interface in preparation for porting | Rich Felker | 2011-02-15 | 2 | -29/+19 |
| * | make pthread_create return EAGAIN on resource failure, as required by POSIX | Rich Felker | 2011-02-15 | 1 | -1/+1 |
| * | reorganize thread exit code, make pthread_exit call cancellation handlers (pt2) | Rich Felker | 2011-02-13 | 2 | -22/+51 |
| * | reorganize thread exit code, make pthread_exit call cancellation handlers | Rich Felker | 2011-02-13 | 1 | -25/+0 |
| * | initial check-in, version 0.5.0 | Rich Felker | 2011-02-12 | 70 | -0/+1030 |
