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* config.h.in (USE_MULTIARCH): Define.

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* 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.
This commit is contained in:
Ulrich Drepper
2009-03-13 23:53:18 +00:00
parent e7f110cdbd
commit 425ce2edb9
20 changed files with 813 additions and 75 deletions
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15
malloc/hooks.c
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@ -275,17 +275,13 @@ free_check(mem, caller) Void_t* mem; const Void_t *caller;
mchunkptr p;
if(!mem) return;
(void)mutex_lock(&main_arena.mutex);
p = mem2chunk_check(mem, NULL);
if(!p) {
(void)mutex_unlock(&main_arena.mutex);
malloc_printerr(check_action, "free(): invalid pointer", mem);
return;
}
#if HAVE_MMAP
if (chunk_is_mmapped(p)) {
(void)mutex_unlock(&main_arena.mutex);
munmap_chunk(p);
return;
}
@ -293,8 +289,13 @@ free_check(mem, caller) Void_t* mem; const Void_t *caller;
#if 0 /* Erase freed memory. */
memset(mem, 0, chunksize(p) - (SIZE_SZ+1));
#endif
#ifdef ATOMIC_FASTBINS
_int_free(&main_arena, p, 0);
#else
(void)mutex_lock(&main_arena.mutex);
_int_free(&main_arena, p);
(void)mutex_unlock(&main_arena.mutex);
#endif
}
static Void_t*
@ -472,7 +473,11 @@ free_starter(mem, caller) Void_t* mem; const Void_t *caller;
return;
}
#endif
#ifdef ATOMIC_FASTBINS
_int_free(&main_arena, p, 1);
#else
_int_free(&main_arena, p);
#endif
}
# endif /* !defiend NO_STARTER */
@ -584,7 +589,7 @@ public_sET_STATe(Void_t* msptr)
clear_fastchunks(&main_arena);
set_max_fast(DEFAULT_MXFAST);
for (i=0; i<NFASTBINS; ++i)
main_arena.fastbins[i] = 0;
fastbin (&main_arena, i) = 0;
for (i=0; i<BINMAPSIZE; ++i)
main_arena.binmap[i] = 0;
top(&main_arena) = ms->av[2];