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authorUlrich Drepper <drepper@redhat.com>2009-04-08 18:00:34 +0000
committerUlrich Drepper <drepper@redhat.com>2009-04-08 18:00:34 +0000
commit4c8b8cc332a4581f7d1627c80030abb922940bfe (patch)
tree7cf57d5b88ade8149680ccccb21b5ba3e14ac4a7 /malloc
parentcd57745bd826356caa533cc2df0cab2aadc883f1 (diff)
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* 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.
Diffstat (limited to 'malloc')
-rw-r--r--malloc/hooks.c26
-rw-r--r--malloc/malloc.c33
2 files changed, 40 insertions, 19 deletions
diff --git a/malloc/hooks.c b/malloc/hooks.c
index fe89db8..72c2929 100644
--- a/malloc/hooks.c
+++ b/malloc/hooks.c
@@ -358,7 +358,7 @@ realloc_check(oldmem, bytes, caller)
if (top_check() >= 0) {
INTERNAL_SIZE_T nb;
checked_request2size(bytes + 1, nb);
- newmem = _int_realloc(&main_arena, oldp, nb);
+ newmem = _int_realloc(&main_arena, oldp, oldsize, nb);
}
#if 0 /* Erase freed memory. */
if(newmem)
@@ -501,7 +501,7 @@ free_starter(mem, caller) Void_t* mem; const Void_t *caller;
then the hooks are reset to 0. */
#define MALLOC_STATE_MAGIC 0x444c4541l
-#define MALLOC_STATE_VERSION (0*0x100l + 3l) /* major*0x100 + minor */
+#define MALLOC_STATE_VERSION (0*0x100l + 4l) /* major*0x100 + minor */
struct malloc_save_state {
long magic;
@@ -521,6 +521,10 @@ struct malloc_save_state {
unsigned long mmapped_mem;
unsigned long max_mmapped_mem;
int using_malloc_checking;
+ unsigned long max_fast;
+ unsigned long arena_test;
+ unsigned long arena_max;
+ unsigned long narenas;
};
Void_t*
@@ -568,6 +572,12 @@ public_gET_STATe(void)
ms->mmapped_mem = mp_.mmapped_mem;
ms->max_mmapped_mem = mp_.max_mmapped_mem;
ms->using_malloc_checking = using_malloc_checking;
+ ms->max_fast = get_max_fast();
+#ifdef PER_THREAD
+ ms->arena_test = mp_.arena_test;
+ ms->arena_max = mp_.arena_max;
+ ms->narenas = narenas;
+#endif
(void)mutex_unlock(&main_arena.mutex);
return (Void_t*)ms;
}
@@ -587,7 +597,10 @@ public_sET_STATe(Void_t* msptr)
(void)mutex_lock(&main_arena.mutex);
/* There are no fastchunks. */
clear_fastchunks(&main_arena);
- set_max_fast(DEFAULT_MXFAST);
+ if (ms->version >= 4)
+ set_max_fast(ms->max_fast);
+ else
+ set_max_fast(64); /* 64 used to be the value we always used. */
for (i=0; i<NFASTBINS; ++i)
fastbin (&main_arena, i) = 0;
for (i=0; i<BINMAPSIZE; ++i)
@@ -663,6 +676,13 @@ public_sET_STATe(Void_t* msptr)
using_malloc_checking = 0;
}
}
+ if (ms->version >= 4) {
+#ifdef PER_THREAD
+ mp_.arena_test = ms->arena_test;
+ mp_.arena_max = ms->arena_max;
+ narenas = ms->narenas;
+#endif
+ }
check_malloc_state(&main_arena);
(void)mutex_unlock(&main_arena.mutex);
diff --git a/malloc/malloc.c b/malloc/malloc.c
index bb7ea36..48a7379 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1586,7 +1586,8 @@ static void _int_free(mstate, mchunkptr, int);
#else
static void _int_free(mstate, mchunkptr);
#endif
-static Void_t* _int_realloc(mstate, mchunkptr, INTERNAL_SIZE_T);
+static Void_t* _int_realloc(mstate, mchunkptr, INTERNAL_SIZE_T,
+ INTERNAL_SIZE_T);
static Void_t* _int_memalign(mstate, size_t, size_t);
static Void_t* _int_valloc(mstate, size_t);
static Void_t* _int_pvalloc(mstate, size_t);
@@ -3778,7 +3779,7 @@ public_rEALLOc(Void_t* oldmem, size_t bytes)
tsd_setspecific(arena_key, (Void_t *)ar_ptr);
#endif
- newp = _int_realloc(ar_ptr, oldp, nb);
+ newp = _int_realloc(ar_ptr, oldp, oldsize, nb);
(void)mutex_unlock(&ar_ptr->mutex);
assert(!newp || chunk_is_mmapped(mem2chunk(newp)) ||
@@ -5102,7 +5103,8 @@ static void malloc_consolidate(av) mstate av;
*/
Void_t*
-_int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T nb)
+_int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T oldsize,
+ INTERNAL_SIZE_T nb)
{
mchunkptr newp; /* chunk to return */
INTERNAL_SIZE_T newsize; /* its size */
@@ -5123,28 +5125,25 @@ _int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T nb)
const char *errstr = NULL;
- /* Simple tests for old block integrity. */
- if (__builtin_expect (misaligned_chunk (oldp), 0))
- {
- errstr = "realloc(): invalid pointer";
- errout:
- malloc_printerr (check_action, errstr, chunk2mem(oldp));
- return NULL;
- }
-
/* oldmem size */
- const INTERNAL_SIZE_T oldsize = chunksize(oldp);
-
if (__builtin_expect (oldp->size <= 2 * SIZE_SZ, 0)
|| __builtin_expect (oldsize >= av->system_mem, 0))
{
errstr = "realloc(): invalid old size";
- goto errout;
+ errout:
+ malloc_printerr (check_action, errstr, chunk2mem(oldp));
+ return NULL;
}
check_inuse_chunk(av, oldp);
- if (!chunk_is_mmapped(oldp)) {
+ /* All callers already filter out mmap'ed chunks. */
+#if 0
+ if (!chunk_is_mmapped(oldp))
+#else
+ assert (!chunk_is_mmapped(oldp));
+#endif
+ {
next = chunk_at_offset(oldp, oldsize);
INTERNAL_SIZE_T nextsize = chunksize(next);
@@ -5271,6 +5270,7 @@ _int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T nb)
return chunk2mem(newp);
}
+#if 0
/*
Handle mmap cases
*/
@@ -5339,6 +5339,7 @@ _int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T nb)
return 0;
#endif
}
+#endif
}
/*