Avoid referencing sbrk(2) on OS X, because it is deprecated as of OS X
10.9 (Mavericks), and the compiler warns against using it.

Clean up malloc_ncpus() by replacing incorrectly indented if..else
branches with a ?: expression.

Submitted by Igor Podlesny.

Fix rallocm() to use the specified arena for allocation, not just
deallocation.

Clarify ALLOCM_ARENA(a) documentation.

Fix malloc_tsd_dalloc() to bypass tcache when dallocating, so that there
is no danger of causing tcache reincarnation during thread exit.
Whether this infinite loop occurs depends on the pthreads TSD
implementation; it is known to occur on Solaris.

Submitted by Markus Eberspächer.

Add ids for all mallctl entries, so that external documents can link to
arbitrary mallctl entries.

When using LinuxThreads pthread_setspecific triggers recursive
allocation on all threads. Work around this by creating a global linked
list of in-progress tsd initializations.

This modifies the _tsd_get_wrapper macro-generated function. When it has
to initialize an TSD object it will push the item to the linked list
first. If this causes a recursive allocation then the _get_wrapper
request is satisfied from the list. When pthread_setspecific returns the
item is removed from the list.

This effectively adds a very poor substitute for real TLS used only
during pthread_setspecific allocation recursion.

Signed-off-by: Crestez Dan Leonard <lcrestez@ixiacom.com>

This function causes recursive allocation on LinuxThreads.

Signed-off-by: Crestez Dan Leonard <lcrestez@ixiacom.com>

Reported by Pat Lynch.

Add a missing mutex unlock in a malloc_init_hard() error path (failed
mutex initialization).  In practice this bug was very unlikely to ever
trigger, but if it did, application deadlock would likely result.

Reported by Pat Lynch.

Avoid (min < 0) comparison for unsigned min in malloc_conf_init().  This
bug had no practical consequences.

Reported by Pat Lynch.

Reported by Pat Lynch.

Consistently use malloc_mutex_prefork() instead of malloc_mutex_lock()
in all prefork functions.

Fix a compiler warning in chunk_record() that was due to reading node
rather than xnode.  In practice this did not cause any correctness
issue, but dataflow analysis in some compilers cannot tell that node and
xnode are always equal in cases that the read is reached.

Fix a race condition in the "arenas.extend" mallctl that could lead to
internal data structure corruption.  The race could be hit if one
thread called the "arenas.extend" mallctl while another thread
concurrently triggered initialization of one of the lazily created
arenas.

Fix dangerous casts of int variables to pointers in thread join function
calls.  On LP64 systems, int and pointers are different sizes, so
writes can corrupt memory.

Fix a Valgrind integration flaw that caused Valgrind warnings about
reads of uninitialized memory in internal zero-initialized data
structures (relevant to tcache and prof code).

Fix a Valgrind integration flaw that caused Valgrind warnings about
reads of uninitialized memory in arena chunk headers.

Add the JEMALLOC_ALWAYS_INLINE_C macro and use it for always-inlined
functions declared in .c files.  This fixes a function attribute
inconsistency for debug builds that resulted in (harmless) compiler
warnings about functions not being inlinable.

Reported by Ricardo Nabinger Sanchez.

Reported by Ricardo Nabinger Sanchez.

Introduce AROUT to control whether there is space between ARFLAGS and
$@.  This regression was introduced by
ad505e0e.

Reported by Mike Hommey.

Signed-off-by: Riku Voipio <riku.voipio@linaro.org>

Fix chunk_record() to unlock chunks_mtx before deallocating a base
node, in order to avoid potential deadlock.  This fix addresses the
second of two similar bugs.

Fix chunk_record() to unlock chunks_mtx before deallocating a base node,
in order to avoid potential deadlock.

Reported by Tudor Bosman.

Clarify that malloc_conf is intended only for compile-time
configuration, since jemalloc may be initialized before main() is
entered.