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228 Commits

Author SHA1 Message Date
Ulrich Drepper d77e786926 Minor cleanups of malloc code 2012-01-16 12:07:56 -05:00
Ulrich Drepper a784e50247 Remove pre-ISO C support 
No more __const.
 2012-01-07 23:57:22 -05:00
Ulrich Drepper 380d7e87dc Implement aligned_alloc 2012-01-01 07:17:21 -05:00
Ulrich Drepper 6ef76f3b51 Avoid assertion in processes with VM in bad shape 2011-10-29 16:39:03 -04:00
Ulrich Drepper 8e58439c92 Remove MALLOC_FAILURE_ACTION use in malloc 2011-09-10 22:12:38 -04:00
Ulrich Drepper 02d46fc4b9 Simplify malloc initialization 
Singificantly reduce the code needed at malloc initialization.  In
the process getpagesize is simplified by always initializing
GLRO(dl_pagesize).
 2011-09-10 21:47:36 -04:00
Ulrich Drepper 22a8918713 Simplify malloc code 
Remove all kinds of unused configuration options and dead code.
 2011-09-10 18:10:17 -04:00
Ulrich Drepper d063d16433 Remove support for !USE___THREAD 2011-09-10 16:50:28 -04:00
Jim Meyering ded5b9b7c7 Remove doubled words. 2011-04-22 21:34:32 -04:00
Ulrich Drepper 9798346413 Use fastbin macro everywhere. 2010-12-25 14:15:42 -05:00
Ulrich Drepper fdc0f374bc Fix perturbing in malloc on free. 2010-10-24 22:37:00 -04:00
Anton Blanchard b9b42ee01c Replace divide and multiply with mask in sYSTRIm 2010-08-16 23:06:55 -07:00
Ulrich Drepper 5f24d53acb Fix race in free sanity check. 2010-05-06 04:42:46 -07:00
Ulrich Drepper 2645b8e5cc Remove unintended change. 2010-04-14 21:09:21 -07:00
H.J. Lu dd37cd1a12 Optimie x86-64 SSE4 memcmp for unaligned data. 2010-04-14 17:53:44 -07:00
Ulrich Drepper ad3d3e8f20 Fix possibly uninitilized variable handling. 
If malloc errors are ignored (which say aren't by default and never
should be) malloc in the old, slow form might use an uninitialized
variable.
 2010-04-08 17:12:42 -07:00
Ulrich Drepper 90a3055e8b One more sanity check in free. 2010-04-03 09:47:01 -07:00
Ulrich Drepper 991eda1ec1 Fix set_max_fast in malloc. 2010-04-03 09:43:10 -07:00
Ulrich Drepper 2b0fba7530 Remove stale reference to website 2010-03-26 05:09:55 -07:00
Ulrich Drepper 3e259dbb32 Remove unwanted malloc changes, again. 2010-03-26 04:00:10 -07:00
Ulrich Drepper 70c90289ff Merge branch 'master' of ssh://sources.redhat.com/git/glibc 
Conflicts:
	ChangeLog
 2010-03-25 19:45:20 -07:00
Ulrich Drepper 9d2569846c Fix typos I added in malloc.c 2010-02-24 19:47:09 -08:00
Petr Baudis 8c0b5f148e Fix assertion in palloc and pvalloc as well. 2010-02-24 15:44:29 -08:00
Ulrich Drepper 2c2243f708 Undo unintended maloc change. 2010-02-10 00:04:49 -08:00
Andreas Schwab 7eb22e757e Avoid PLT call to fegetenv on s390 2010-02-09 22:34:17 -08:00
Ulrich Drepper 346bc35c33 Fix malloc_info without prioor allocations. 2010-01-14 13:32:58 -08:00
John Sullivan ee6f35389c Fix typos in format strings of malloc_info. 2009-10-29 21:50:35 -07:00
Ulrich Drepper 72f9026327 Add local assert function to avoid problems with memory allocation in 
the real one.
 2009-08-31 04:55:10 -07:00
Ulrich Drepper bec466d922 Fix race in corruption check. 
With atomic fastbins the checks performed can race with concurrent
modifications of the arena.  If we detect a problem re-do the test
after getting the lock.
 2009-07-16 09:54:34 -07:00
Jakub Jelinek bea0ac1d87 Use rel semantics of cas instead of acq semantics with full barrier before it in _int_free 
The following patch fixes catomic_compare_and_exchange_*_rel definitions
(which were never used and weren't correct) and uses
catomic_compare_and_exchange_val_rel in _int_free.  Comparing to the
pre-2009-07-02 --enable-experimental-malloc state the generated code should
be identical on all arches other than ppc/ppc64 and on ppc/ppc64 should use
lwsync instead of isync barrier.
 2009-07-16 07:24:50 -07:00
Ulrich Drepper 6cbbaa50aa Fix possible race when freeing object in fast bin list. 2009-07-02 03:30:55 -07:00
Ulrich Drepper f6887a0d9a Add some more tests to malloc to detect corruptions. 2009-06-18 22:37:31 -07:00
Ulrich Drepper 0588a9cb62 * malloc/malloc.c (malloc_info): Output address space information. 2009-04-18 08:44:10 +00:00
Ulrich Drepper da2d2fb68d * malloc/malloc.c (malloc_info): Also output system memory information. 2009-04-18 05:14:52 +00:00
Ulrich Drepper df77455c4b [BZ #9957] 
2009-04-16  Ulrich Drepper  <drepper@redhat.com>
	[BZ #9957]
	* malloc/malloc.c (force_reg): Define.
	(sYSMALLOc): Load hook variable into variable
	before test and force into register.
	(sYSTRIm): Likewise.
	(public_mALLOc): Force hook value into register.
	(public_fREe): Likewise.
	(public_rEALLOc): Likewise.
	(public_mEMALIGn): Likewise.
	(public_vALLOc): Likewise.
	(public_pVALLOc): Likewise.
	(public_cALLOc): Likewise.
	(__posix_memalign): Likewise.
	* malloc/arena.c (ptmalloc_init): Load hook variable into variable
	before test and force into register.
	* malloc/hooks.c (top_check): Likewise.
	(public_s_ET_STATe): Pretty printing.

	* resolv/res_send.c (send_dg): Don't just ignore the result we got
	in case we only receive one reply in single-request mode.
 2009-04-16 21:22:16 +00:00
Ulrich Drepper bb06654506 * malloc/malloc.c (malloc_info): New function. 
* malloc/malloc.h: Declare it.
	* malloc/Versions: Export malloc_info for GLIBC_2.10.

	* resolv/nss_dns/dns-host.c (getanswer_r): Use strcasecmp
 2009-04-09 05:45:42 +00:00
Ulrich Drepper 4c8b8cc332 * malloc/malloc.c (_int_realloc): Add parameter with old block 
size.  Remove duplicated test.  Don't handle mmap'ed blocks here.
	Adjust all callers.
	* malloc/hooks.c (realloc_check): Adjust _int_realloc call.
 2009-04-08 18:00:34 +00:00
Ulrich Drepper 425ce2edb9 * config.h.in (USE_MULTIARCH): Define. 
* configure.in: Handle --enable-multi-arch.
	* elf/dl-runtime.c (_dl_fixup): Handle STT_GNU_IFUNC.
	(_dl_fixup_profile): Likewise.
	* elf/do-lookup.c (dl_lookup_x): Likewise.
	* sysdeps/x86_64/dl-machine.h: Handle STT_GNU_IFUNC.
	* elf/elf.h (STT_GNU_IFUNC): Define.
	* include/libc-symbols.h (libc_ifunc): Define.
	* sysdeps/x86_64/cacheinfo.c: If USE_MULTIARCH is defined, use the
	framework in init-arch.h to get CPUID values.
	* sysdeps/x86_64/multiarch/Makefile: New file.
	* sysdeps/x86_64/multiarch/init-arch.c: New file.
	* sysdeps/x86_64/multiarch/init-arch.h: New file.
	* sysdeps/x86_64/multiarch/sched_cpucount.c: New file.

	* config.make.in (experimental-malloc): Define.
	* configure.in: Handle --enable-experimental-malloc.
	* malloc/Makefile: Handle experimental-malloc flag.
	* malloc/malloc.c: Implement PER_THREAD and ATOMIC_FASTBINS features.
	* malloc/arena.c: Likewise.
	* malloc/hooks.c: Likewise.
	* malloc/malloc.h: Define M_ARENA_TEST and M_ARENA_MAX.
 2009-03-13 23:53:18 +00:00
Ulrich Drepper 6dd6a580df (_int_realloc): Likewise. Third argument is now padded size 2009-02-07 22:49:34 +00:00
Ulrich Drepper 78ac92ad8d * malloc/malloc.c (_int_free): Second argument is now mchunkptr. 
Change all callers.
	(_int_realloc): Likewise.
	All _int_* functions are now static.
	* malloc/hooks.c: Change all callers to _int_free and _int_realloc.
	* malloc/arena.c: Likewise.
	* include/malloc.h: Remove now unnecessary declarations of the _int_*
	functions.
 2009-02-07 22:01:49 +00:00
Ulrich Drepper bfacf1af1a * malloc/malloc.c: Add branch prediction for use of the hooks. 2009-02-07 19:05:28 +00:00
Ulrich Drepper 1fdd89a78d * malloc/malloc.c (sYSMALLOc): Don't use assert when detecting 
manipulated brk, use malloc_printerr.
	* misc/sbrk.c (__sbrk): Better error handling for nonsense
	requests.
 2009-01-30 17:47:23 +00:00
Ulrich Drepper 486bdb8863 * malloc/malloc.c (public_rEALLOc): When new arena is used, copy 
really all bytes.  Patch by Denys Vlasenko <dvlasenk@redhat.com>.
 2008-11-03 08:07:39 +00:00
Ulrich Drepper dba385512d (public_vALLOc): Try other arenas in case _int_valloc fails. (public_pVALLOc): Likewise. 2008-09-12 18:18:25 +00:00
Ulrich Drepper c958a6a4e5 [BZ #5736] 
* malloc/malloc.c: Fix typo in comment.
 2008-03-04 18:36:27 +00:00
Ulrich Drepper ab355d9aa5 * pthread-errnos.sym: Add EOVERFLOW. 
* sysdeps/unix/sysv/linux/structsem.sym: Add SEM_VALUE_MAX.
	* sysdeps/unix/sysv/linux/sem_post.c: Don't overflow value field.
	* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/sem_post.S: Likewise.
 2008-01-10 18:34:43 +00:00
Ulrich Drepper f6bacb8ef4 [BZ #5541] 
* sunrpc/rpc_thread.c (__rpc_thread_destroy): Also free xports and
	pollfd structures.
	Patch by André Cruz.
 2008-01-09 21:52:40 +00:00
Ulrich Drepper b34437015b [BZ #5553] 
2008-01-09  Ulrich Drepper  <drepper@redhat.com>
	[BZ #5553]
	* malloc/malloc.c (public_mALLOc): Set ar_ptr when trying main_arena.
	(public_mEMALIGn): Likewise.
	Patch mostly by Daniel Jacobowitz.
 2008-01-09 20:35:03 +00:00
Ulrich Drepper 4cd4c5d6a2 * malloc/malloc.c (public_cALLOc): For arena other than 
main_arena, count all bytes inside the mprotect_size range of the
	heap as uninitialized.
 2007-12-17 18:44:04 +00:00
Ulrich Drepper 68631c8eb9 * malloc/malloc.c (public_mTRIm): Iterate over all arenas and call 
mTRIm for all of them.
	(mTRIm): Additionally iterate over all free blocks and use madvise
	to free memory for all those blocks which contain at least one
	memory page.

	* malloc/malloc.c (do_check_malloc_state): Minimal cleanups.
 2007-12-16 22:53:08 +00:00