Merge in the pthread library. This is the linuxthreads library taken from

glibc 2.1.3 and ported to work with uClibc by Stefan Soucek and Erik Andersen
(me).  Stefan has hacked things up such that linuxthreads runs on MMU-less
systems (tested only on arm-nommu).  Erik cleaned things up and made it work
properly as a shared library.
 -Erik

1 files changed, 73 insertions, 0 deletions

diff --git a/libpthread/linuxthreads/Changes b/libpthread/linuxthreads/Changes
new file mode 100644
index 000000000..8ec26c9a6
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+Release 0.7:
+- Destructors for thread-specific data now conform to the POSIX semantics
+  (call destructors again if non-NULL TSD remains after a round of
+   destruction).
+- Implemented thread-specific data as a sparse array, allows more TSD keys
+  and smaller thread descriptors (Ulrich Drepper).
+- Added "error checking" mutexes.
+- Protect against multiple sigwait() on the same signals.
+- Simplified implementation of semaphores when compare_and_swap is 
+  not available.
+- Fixed bug in fork() where stdin was closed if fork() was called before
+  the first pthread_create().
+- Fixed bug in the gethostby*_r functions (bad result if null bytes
+  in addresses).
+- Typos in manual pages corrected.
+- First cut at a PowerPC port (not working yet, runs into problems
+  with gcc and with the C library).
+
+Release 0.6:
+- Validation of thread identifiers: no more crashes when operating on
+  a thread that has exited (based on Pavel Krauz's ideas).
+- Added fallback implementation of semaphores for the 386 and the
+  Sparc. 
+- Fixed a bug in signal handling causing false restarts of suspended
+  threads.
+- Fixed a bug in realtime scheduling causing all threads to have
+  default scheduling on Ix86 with libc5.
+- With realtime scheduling, unlocking a mutex now restarts the
+  highest priority thread waiting on the mutex, not the
+  first-suspended thread (Richard Neitzel).
+- Timing a process now returns cumulative times for all threads, not
+  just times for the initial thread (suggested by Wolfram Gloger).
+- Cleaned up name space (internal defs prefixed by __, weak aliases
+  for non-portable extensions).
+- MIPS port (contributed by Ralf Baechle).
+
+Release 0.5:
+- Signal-safe semaphores a la POSIX 1003.1b added.
+- Locking bug in pthread_mutex_trylock over recursive mutexes fixed.
+- Race conditions in thread cancellation fixed.
+- Sparc port (contributed by Miguel de Icaza).
+- Support for getpwnam_r and getpwuid_r.
+- Added pthread_kill_other_threads_np to be used in conjunction with
+  exec*().
+
+Release 0.4:
+- Manual pages for all functions.
+- Synchronization bug causing accumulation of zombie processes fixed.
+- Race condition in pthread_cond_timedwait fixed.
+- Recursive mutexes are back by popular demand.
+- Partial support for realtime scheduling (initiated by Richard Neitzel).
+- pthread.h cleaned up a lot: now C++ compatible, added missing "const" 
+  qualifiers, added short documentation, put to GNU libc standards
+  for name space pollution (Ulrich Drepper).
+- Motorola 68k port (contributed by Andreas Schwab).
+- Interaction with fork(2) cleaned up a lot.
+
+Release 0.3:
+- Thread creation and reclaimation now performed by a centralized
+  "thread manager" thread.
+- Removed recursive mutexes to make regular mutexes more efficient.
+- Now available as a shared library (contributed by Richard Henderson).
+- Alpha port (contributed by Richard Henderson).
+- Fixed many small discrepancies with Posix 1003.1c.
+- Put under the LGPL instead of the GPL.
+
+Release 0.2:
+- Reentrant libc functions (adapted from libc 5.3.9 by Peeter Joot)
+- pthread_cond_wait did not reacquire the mutex correctly on return
+- More efficient pthread_cond_broadcast
+
+Release 0.1:
+- First public release