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1999-12-05 Wolfram Gloger <wg@malloc.de>
* malloc/malloc.c (arena_get2): If generating a new arena fails,
try to generate a minimal one and hope for mmap_chunk() to succeed
later.
1999-11-07 Wolfram Gloger <wg@malloc.de>
* malloc/thread-m.h [NO_THREADS]: The mutex_* macros now let
mutex_t work as an `in-use' flag even without threads.
* malloc/malloc.c (USE_ARENAS): New feature flag, controls support
for multiple arenas separately from NO_THREADS.
(mALLOc, chunk_realloc, mEMALIGn, cALLOc) [USE_ARENAS]: try to
fall back to an mmap()ed arena when sbrk() has failed.
1999-11-01 Wolfram Gloger <wg@malloc.de>
* malloc/malloc.h: Describe __malloc_initialize_hook.
* manual/memory.texi: Document __malloc_initialize_hook.
1999-09-23 Mark Kettenis <kettenis@gnu.org>
* malloc/malloc.c (cALLOc): Correctly handle systems where sbrk
doesn't clear the contents of memory that is reallocated after
decrementing the break value first. Update comment about
MORECORE_CLEARS, explaining the meaning of the values it can be
set to.
1999-08-28 Ulrich Drepper <drepper@cygnus.com>
* malloc/malloc.c (ptmalloc_init): Don't use variables to set
thresholds for SUID binaries. [PR libc/1277]
1999-08-06 H.J. Lu <hjl@gnu.org>
* malloc/malloc.c: Initialize __libc_pagesize early.
1999-07-07 Ulrich Drepper <drepper@cygnus.com>
* malloc/malloc.c (request2size): Also set errno if failing.
* malloc/malloc.c (request2size): Take care of overflow in
addition.
1999-07-04 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c (request2size): Check for overflow and return
NULL whenever it is encountered.
1999-06-06 Ulrich Drepper <drepper@cygnus.com>
* malloc/malloc.c: Introduce local variable __libc_getpagesize to
avoid multiple calls to getpagesize() which might be a syscall.
1999-06-05 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c (check_action): Change into bitmap so that both
diagnostic and abort can be requested by setting it to 3.
(mALLOC_SET_STATe): Disable malloc checking if necessary.
1999-05-16 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c: Cleanup to bring in line with released
stand-alone version `ptmalloc'. Update some comments.
(internal_function): Move fallback definition so that the source
compiles outside of libc, and use it in more places.
(malloc_atfork): Fix when malloc_check is in use.
1999-04-28 Ulrich Drepper <drepper@cygnus.com>
* malloc/malloc.c (rEALLOc): Only free memory for size 0 if oldmem
is != NULL.
1999-04-28 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* malloc/malloc.c (REALLOC_ZERO_BYTES_FREES): Define it to follow
ISO C9x and Unix98.
1999-02-23 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* malloc/malloc.c (mALLOC_SET_STATe): Handle the case where a
non-checked heap is restored when malloc checking was requested by
the user.
(struct malloc_state): Add using_malloc_checking.
(MALLOC_STATE_VERSION): Increment minor.
(using_malloc_checking, disallow_malloc_check): New variables.
(__malloc_check_init): Use them.
(mALLOC_GET_STATe): Use mALLOc to allocate the malloc_state, so
that it can the chunk is properly instrumented when malloc
checking is enabled. Set the new using_malloc_checking field.
1998-08-28 09:22 Ulrich Drepper <drepper@cygnus.com>
* malloc/malloc.c (malloc_hook_ini): Don't overwrite realloc and
memalign hook.
(realloc_hook_ini): Don't overwrite memalign hook.
(memalign_hook_ini): Don't overwrite malloc and memalign hooks.
Reported by Philippe Troin <phil@fifi.org>.
1998-11-04 Ulrich Drepper <drepper@cygnus.com>
* malloc/malloc.c: Make sure calloc really returned zeroed memory.
Patch by Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>.
1998-08-11 Roland McGrath <roland@baalperazim.frob.com>
* malloc/malloc.c (free_check, realloc_check): Don't cast to long for
%p arg to fprintf, since `void *' is the right type already.
1998-08-11 H.J. Lu <hjl@gnu.org>
* malloc/malloc.c (free_check): Print pointer value using %p.
(realloc_check): Likewise.
1998-05-12 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c: Fix for NO_THREADS case.
1998-05-03 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c [__linux__] (ptmalloc_unlock_all2): New
function, used as atfork handler for the child process to work
around a problem in LinuxThreads.
1998-03-31 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c (chunk2mem_check, top_check): New functions.
(malloc_check, free_check, realloc_check, memalign_check): Use
them to improve overrun checking. Overruns of a single byte and
corruption of the top chunk are now detected much more reliably.
Tue Aug 12 17:17:00 1997 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/thread-m.h (thread_atfork, thread_atfork_static): New
macros to encapsulate pthread_atfork's functionality.
* malloc/malloc.c (ptmalloc_lock_all, ptmalloc_unlock_all): New
functions, registered via thread_atfork in the initialization
routine or via thread_atfork_static in global scope. This
ensures a consistent state of all locks across fork().
Sun Apr 13 17:18:38 1997 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c (fREe): Small optimization. Before returning,
add fast check whether the heap containing top can go away.
Fri Apr 11 16:46:49 1997 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c (mALLOc, rEALLOc, cALLOc, mEMALIGn): When
failing to allocate a new chunk, also try the main_arena. It may
be that we are only running out of mmapped regions, and other
arenas cannot be enlarged sufficiently.
(new_heap, malloc_extend_top): Handle top_pad more consistently,
i.e. only in new_heap().
Mon Feb 24 23:05:00 1997 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c (malloc_get_state): New function.
Saves global malloc state to an opaque data structure which
is dynamically allocated in the heap.
* malloc/malloc.c (malloc_set_state): New function.
Restore previously obtained state.
* malloc/malloc.h: Add declaration of malloc_get_state()
and malloc_set_state().
Mon Feb 17 10:58:14 1997 Miles Bader <miles@gnu.ai.mit.edu>
* malloc/thread-m.h
[_LIBC && !PTHREAD_MUTEX_INITIALIZER && MUTEX_INITIALIZER]
(mutex_lock, mutex_unlock, mutex_trylock): Defined in terms of
__mutex_*.
(mutex_t): Type removed & replaced by new macro.
(tsd_key_t): Typedef to int instead of pthread_key_t.
(tsd_key_create, tsd_setspecific, tsd_getspecific): New macros.
(__pthread_initialize): New macro, work around assumption of pthreads.
(tsd_keys_alloced): New static variable.
<hurd/threadvar.h>: New include.
1997-02-02 23:15 Ulrich Drepper <drepper@cygnus.com>
* malloc/malloc.c (__after_morecore_hook): New variable.
(malloc_extend_top): Call __after_morecore_hook if set.
(main_trim): Likewise.
* malloc/malloc.h: Add declaration of __after_morecore_hook.
Suggested by Marcus Daniels.
1997-02-02 23:00 Marcus G. Daniels <marcus@tdb.com>
* malloc/malloc.c (rEALLOc): Protect tsd_setspecific call by
#ifndef NO_THREADS.
(mallinfo): Likewise.
* malloc/malloc.c (__morecore): Make external since it is used in
programs.
1997-01-30 18:29 Richard Henderson <richard@atheist.tamu.edu>
* malloc/malloc.c (MAGICBYTE): Use cast to size_t instead of unsigned
to prevent warnings on 64 bit systems.
Reported by Paul Wouters <paul@xtdnet.nl>.
1997-01-27 13:28 Ulrich Drepper <drepper@cygnus.com>
* malloc/malloc.h (__malloc_initialized) [_LIBC]: Define as
__libc_malloc_initialized so that this variable is not shared with
other users of GNU malloc.
Suggested by Martin von Loewis <martin@mira.isdn.cs.tu-berlin.de>.
1997-01-14 14:20 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* malloc/malloc.c (weak_variable): Define.
(__malloc_initialize_hook, __free_hook, __malloc_hook, __realloc_hook,
__memalign_hook): Make them weak definitions.
Sun Jan 26 18:35:29 1997 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* malloc/malloc.c: Change malloc_check_init() to
__malloc_check_init(). Check for NULL in calloc() when a hook is
in place. Make more variables tunable via MALLOC_... environment
variables.
* malloc/malloc.h: Change malloc_check_init() to
__malloc_check_init().
Thu Jan 9 08:47:54 1997 Andreas Jaeger <aj@arthur.pfalz.de>
* new-malloc/malloc.c (__MALLOC_P): define call to pthread
initializer only if NO_THREADS is not defined.
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