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26
ChangeLog
26
ChangeLog
@@ -4,6 +4,32 @@ brevity. Much more detail can be found in the git revision history:
|
||||
|
||||
https://github.com/jemalloc/jemalloc
|
||||
|
||||
* 4.0.4 (October 24, 2015)
|
||||
|
||||
This bugfix release fixes another xallocx() regression. No other regressions
|
||||
have come to light in over a month, so this is likely a good starting point
|
||||
for people who prefer to wait for "dot one" releases with all the major issues
|
||||
shaken out.
|
||||
|
||||
Bug fixes:
|
||||
- Fix xallocx(..., MALLOCX_ZERO to zero the last full trailing page of large
|
||||
allocations that have been randomly assigned an offset of 0 when
|
||||
--enable-cache-oblivious configure option is enabled.
|
||||
|
||||
* 4.0.3 (September 24, 2015)
|
||||
|
||||
This bugfix release continues the trend of xallocx() and heap profiling fixes.
|
||||
|
||||
Bug fixes:
|
||||
- Fix xallocx(..., MALLOCX_ZERO) to zero all trailing bytes of large
|
||||
allocations when --enable-cache-oblivious configure option is enabled.
|
||||
- Fix xallocx(..., MALLOCX_ZERO) to zero trailing bytes of huge allocations
|
||||
when resizing from/to a size class that is not a multiple of the chunk size.
|
||||
- Fix prof_tctx_dump_iter() to filter out nodes that were created after heap
|
||||
profile dumping started.
|
||||
- Work around a potentially bad thread-specific data initialization
|
||||
interaction with NPTL (glibc's pthreads implementation).
|
||||
|
||||
* 4.0.2 (September 21, 2015)
|
||||
|
||||
This bugfix release addresses a few bugs specific to heap profiling.
|
||||
|
||||
@@ -1418,8 +1418,8 @@ malloc_conf = "xmalloc:true";]]></programlisting>
|
||||
can cause asynchronous string deallocation. Furthermore, each
|
||||
invocation of this interface can only read or write; simultaneous
|
||||
read/write is not supported due to string lifetime limitations. The
|
||||
name string must nil-terminated and comprised only of characters in the
|
||||
sets recognized
|
||||
name string must be nil-terminated and comprised only of characters in
|
||||
the sets recognized
|
||||
by <citerefentry><refentrytitle>isgraph</refentrytitle>
|
||||
<manvolnum>3</manvolnum></citerefentry> and
|
||||
<citerefentry><refentrytitle>isblank</refentrytitle>
|
||||
|
||||
@@ -317,6 +317,10 @@ typedef unsigned szind_t;
|
||||
#define PAGE ((size_t)(1U << LG_PAGE))
|
||||
#define PAGE_MASK ((size_t)(PAGE - 1))
|
||||
|
||||
/* Return the page base address for the page containing address a. */
|
||||
#define PAGE_ADDR2BASE(a) \
|
||||
((void *)((uintptr_t)(a) & ~PAGE_MASK))
|
||||
|
||||
/* Return the smallest pagesize multiple that is >= s. */
|
||||
#define PAGE_CEILING(s) \
|
||||
(((s) + PAGE_MASK) & ~PAGE_MASK)
|
||||
|
||||
16
src/arena.c
16
src/arena.c
@@ -2679,6 +2679,22 @@ arena_ralloc_large_grow(arena_t *arena, arena_chunk_t *chunk, void *ptr,
|
||||
if (arena_run_split_large(arena, run, splitsize, zero))
|
||||
goto label_fail;
|
||||
|
||||
if (config_cache_oblivious && zero) {
|
||||
/*
|
||||
* Zero the trailing bytes of the original allocation's
|
||||
* last page, since they are in an indeterminate state.
|
||||
* There will always be trailing bytes, because ptr's
|
||||
* offset from the beginning of the run is a multiple of
|
||||
* CACHELINE in [0 .. PAGE).
|
||||
*/
|
||||
void *zbase = (void *)((uintptr_t)ptr + oldsize);
|
||||
void *zpast = PAGE_ADDR2BASE((void *)((uintptr_t)zbase +
|
||||
PAGE));
|
||||
size_t nzero = (uintptr_t)zpast - (uintptr_t)zbase;
|
||||
assert(nzero > 0);
|
||||
memset(zbase, 0, nzero);
|
||||
}
|
||||
|
||||
size = oldsize + splitsize;
|
||||
npages = (size + large_pad) >> LG_PAGE;
|
||||
|
||||
|
||||
30
src/huge.c
30
src/huge.c
@@ -133,7 +133,7 @@ huge_ralloc_no_move_similar(void *ptr, size_t oldsize, size_t usize_min,
|
||||
extent_node_t *node;
|
||||
arena_t *arena;
|
||||
chunk_hooks_t chunk_hooks = CHUNK_HOOKS_INITIALIZER;
|
||||
bool zeroed;
|
||||
bool pre_zeroed, post_zeroed;
|
||||
|
||||
/* Increase usize to incorporate extra. */
|
||||
for (usize = usize_min; usize < usize_max && (usize_next = s2u(usize+1))
|
||||
@@ -145,26 +145,27 @@ huge_ralloc_no_move_similar(void *ptr, size_t oldsize, size_t usize_min,
|
||||
|
||||
node = huge_node_get(ptr);
|
||||
arena = extent_node_arena_get(node);
|
||||
pre_zeroed = extent_node_zeroed_get(node);
|
||||
|
||||
/* Fill if necessary (shrinking). */
|
||||
if (oldsize > usize) {
|
||||
size_t sdiff = oldsize - usize;
|
||||
if (config_fill && unlikely(opt_junk_free)) {
|
||||
memset((void *)((uintptr_t)ptr + usize), 0x5a, sdiff);
|
||||
zeroed = false;
|
||||
post_zeroed = false;
|
||||
} else {
|
||||
zeroed = !chunk_purge_wrapper(arena, &chunk_hooks, ptr,
|
||||
CHUNK_CEILING(oldsize), usize, sdiff);
|
||||
post_zeroed = !chunk_purge_wrapper(arena, &chunk_hooks,
|
||||
ptr, CHUNK_CEILING(oldsize), usize, sdiff);
|
||||
}
|
||||
} else
|
||||
zeroed = true;
|
||||
post_zeroed = pre_zeroed;
|
||||
|
||||
malloc_mutex_lock(&arena->huge_mtx);
|
||||
/* Update the size of the huge allocation. */
|
||||
assert(extent_node_size_get(node) != usize);
|
||||
extent_node_size_set(node, usize);
|
||||
/* Clear node's zeroed field if zeroing failed above. */
|
||||
extent_node_zeroed_set(node, extent_node_zeroed_get(node) && zeroed);
|
||||
/* Update zeroed. */
|
||||
extent_node_zeroed_set(node, post_zeroed);
|
||||
malloc_mutex_unlock(&arena->huge_mtx);
|
||||
|
||||
arena_chunk_ralloc_huge_similar(arena, ptr, oldsize, usize);
|
||||
@@ -172,7 +173,7 @@ huge_ralloc_no_move_similar(void *ptr, size_t oldsize, size_t usize_min,
|
||||
/* Fill if necessary (growing). */
|
||||
if (oldsize < usize) {
|
||||
if (zero || (config_fill && unlikely(opt_zero))) {
|
||||
if (!zeroed) {
|
||||
if (!pre_zeroed) {
|
||||
memset((void *)((uintptr_t)ptr + oldsize), 0,
|
||||
usize - oldsize);
|
||||
}
|
||||
@@ -190,10 +191,11 @@ huge_ralloc_no_move_shrink(void *ptr, size_t oldsize, size_t usize)
|
||||
arena_t *arena;
|
||||
chunk_hooks_t chunk_hooks;
|
||||
size_t cdiff;
|
||||
bool zeroed;
|
||||
bool pre_zeroed, post_zeroed;
|
||||
|
||||
node = huge_node_get(ptr);
|
||||
arena = extent_node_arena_get(node);
|
||||
pre_zeroed = extent_node_zeroed_get(node);
|
||||
chunk_hooks = chunk_hooks_get(arena);
|
||||
|
||||
assert(oldsize > usize);
|
||||
@@ -209,21 +211,21 @@ huge_ralloc_no_move_shrink(void *ptr, size_t oldsize, size_t usize)
|
||||
if (config_fill && unlikely(opt_junk_free)) {
|
||||
huge_dalloc_junk((void *)((uintptr_t)ptr + usize),
|
||||
sdiff);
|
||||
zeroed = false;
|
||||
post_zeroed = false;
|
||||
} else {
|
||||
zeroed = !chunk_purge_wrapper(arena, &chunk_hooks,
|
||||
post_zeroed = !chunk_purge_wrapper(arena, &chunk_hooks,
|
||||
CHUNK_ADDR2BASE((uintptr_t)ptr + usize),
|
||||
CHUNK_CEILING(oldsize),
|
||||
CHUNK_ADDR2OFFSET((uintptr_t)ptr + usize), sdiff);
|
||||
}
|
||||
} else
|
||||
zeroed = true;
|
||||
post_zeroed = pre_zeroed;
|
||||
|
||||
malloc_mutex_lock(&arena->huge_mtx);
|
||||
/* Update the size of the huge allocation. */
|
||||
extent_node_size_set(node, usize);
|
||||
/* Clear node's zeroed field if zeroing failed above. */
|
||||
extent_node_zeroed_set(node, extent_node_zeroed_get(node) && zeroed);
|
||||
/* Update zeroed. */
|
||||
extent_node_zeroed_set(node, post_zeroed);
|
||||
malloc_mutex_unlock(&arena->huge_mtx);
|
||||
|
||||
/* Zap the excess chunks. */
|
||||
|
||||
22
src/prof.c
22
src/prof.c
@@ -1102,11 +1102,23 @@ prof_tctx_dump_iter(prof_tctx_tree_t *tctxs, prof_tctx_t *tctx, void *arg)
|
||||
{
|
||||
bool propagate_err = *(bool *)arg;
|
||||
|
||||
if (prof_dump_printf(propagate_err,
|
||||
" t%"FMTu64": %"FMTu64": %"FMTu64" [%"FMTu64": %"FMTu64"]\n",
|
||||
tctx->thr_uid, tctx->dump_cnts.curobjs, tctx->dump_cnts.curbytes,
|
||||
tctx->dump_cnts.accumobjs, tctx->dump_cnts.accumbytes))
|
||||
return (tctx);
|
||||
switch (tctx->state) {
|
||||
case prof_tctx_state_initializing:
|
||||
case prof_tctx_state_nominal:
|
||||
/* Not captured by this dump. */
|
||||
break;
|
||||
case prof_tctx_state_dumping:
|
||||
case prof_tctx_state_purgatory:
|
||||
if (prof_dump_printf(propagate_err,
|
||||
" t%"FMTu64": %"FMTu64": %"FMTu64" [%"FMTu64": "
|
||||
"%"FMTu64"]\n", tctx->thr_uid, tctx->dump_cnts.curobjs,
|
||||
tctx->dump_cnts.curbytes, tctx->dump_cnts.accumobjs,
|
||||
tctx->dump_cnts.accumbytes))
|
||||
return (tctx);
|
||||
break;
|
||||
default:
|
||||
not_reached();
|
||||
}
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
|
||||
@@ -73,6 +73,9 @@ tsd_cleanup(void *arg)
|
||||
tsd_t *tsd = (tsd_t *)arg;
|
||||
|
||||
switch (tsd->state) {
|
||||
case tsd_state_uninitialized:
|
||||
/* Do nothing. */
|
||||
break;
|
||||
case tsd_state_nominal:
|
||||
#define O(n, t) \
|
||||
n##_cleanup(tsd);
|
||||
|
||||
@@ -52,9 +52,20 @@ TEST_BEGIN(test_oom)
|
||||
|
||||
hugemax = get_huge_size(get_nhuge()-1);
|
||||
|
||||
/* In practice hugemax is too large to be allocated. */
|
||||
assert_ptr_null(mallocx(hugemax, 0),
|
||||
"Expected OOM for mallocx(size=%#zx, 0)", hugemax);
|
||||
/*
|
||||
* It should be impossible to allocate two objects that each consume
|
||||
* more than half the virtual address space.
|
||||
*/
|
||||
{
|
||||
void *p;
|
||||
|
||||
p = mallocx(hugemax, 0);
|
||||
if (p != NULL) {
|
||||
assert_ptr_null(mallocx(hugemax, 0),
|
||||
"Expected OOM for mallocx(size=%#zx, 0)", hugemax);
|
||||
dallocx(p, 0);
|
||||
}
|
||||
}
|
||||
|
||||
#if LG_SIZEOF_PTR == 3
|
||||
size = ZU(0x8000000000000000);
|
||||
|
||||
@@ -1,5 +1,24 @@
|
||||
#include "test/jemalloc_test.h"
|
||||
|
||||
/*
|
||||
* Use a separate arena for xallocx() extension/contraction tests so that
|
||||
* internal allocation e.g. by heap profiling can't interpose allocations where
|
||||
* xallocx() would ordinarily be able to extend.
|
||||
*/
|
||||
static unsigned
|
||||
arena_ind(void)
|
||||
{
|
||||
static unsigned ind = 0;
|
||||
|
||||
if (ind == 0) {
|
||||
size_t sz = sizeof(ind);
|
||||
assert_d_eq(mallctl("arenas.extend", &ind, &sz, NULL, 0), 0,
|
||||
"Unexpected mallctl failure creating arena");
|
||||
}
|
||||
|
||||
return (ind);
|
||||
}
|
||||
|
||||
TEST_BEGIN(test_same_size)
|
||||
{
|
||||
void *p;
|
||||
@@ -218,6 +237,7 @@ TEST_END
|
||||
|
||||
TEST_BEGIN(test_extra_large)
|
||||
{
|
||||
int flags = MALLOCX_ARENA(arena_ind());
|
||||
size_t smallmax, large0, large1, large2, huge0, hugemax;
|
||||
void *p;
|
||||
|
||||
@@ -229,61 +249,62 @@ TEST_BEGIN(test_extra_large)
|
||||
huge0 = get_huge_size(0);
|
||||
hugemax = get_huge_size(get_nhuge()-1);
|
||||
|
||||
p = mallocx(large2, 0);
|
||||
p = mallocx(large2, flags);
|
||||
assert_ptr_not_null(p, "Unexpected mallocx() error");
|
||||
|
||||
assert_zu_eq(xallocx(p, large2, 0, 0), large2,
|
||||
assert_zu_eq(xallocx(p, large2, 0, flags), large2,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size decrease with zero extra. */
|
||||
assert_zu_eq(xallocx(p, large0, 0, 0), large0,
|
||||
assert_zu_eq(xallocx(p, large0, 0, flags), large0,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_eq(xallocx(p, smallmax, 0, 0), large0,
|
||||
assert_zu_eq(xallocx(p, smallmax, 0, flags), large0,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_eq(xallocx(p, large2, 0, 0), large2,
|
||||
assert_zu_eq(xallocx(p, large2, 0, flags), large2,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size decrease with non-zero extra. */
|
||||
assert_zu_eq(xallocx(p, large0, large2 - large0, 0), large2,
|
||||
assert_zu_eq(xallocx(p, large0, large2 - large0, flags), large2,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_eq(xallocx(p, large1, large2 - large1, 0), large2,
|
||||
assert_zu_eq(xallocx(p, large1, large2 - large1, flags), large2,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_eq(xallocx(p, large0, large1 - large0, 0), large1,
|
||||
assert_zu_eq(xallocx(p, large0, large1 - large0, flags), large1,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_eq(xallocx(p, smallmax, large0 - smallmax, 0), large0,
|
||||
assert_zu_eq(xallocx(p, smallmax, large0 - smallmax, flags), large0,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_eq(xallocx(p, large0, 0, 0), large0,
|
||||
assert_zu_eq(xallocx(p, large0, 0, flags), large0,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size increase with zero extra. */
|
||||
assert_zu_eq(xallocx(p, large2, 0, 0), large2,
|
||||
assert_zu_eq(xallocx(p, large2, 0, flags), large2,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_eq(xallocx(p, huge0, 0, 0), large2,
|
||||
assert_zu_eq(xallocx(p, huge0, 0, flags), large2,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_eq(xallocx(p, large0, 0, 0), large0,
|
||||
assert_zu_eq(xallocx(p, large0, 0, flags), large0,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size increase with non-zero extra. */
|
||||
assert_zu_lt(xallocx(p, large0, huge0 - large0, 0), huge0,
|
||||
assert_zu_lt(xallocx(p, large0, huge0 - large0, flags), huge0,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_eq(xallocx(p, large0, 0, 0), large0,
|
||||
assert_zu_eq(xallocx(p, large0, 0, flags), large0,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size increase with non-zero extra. */
|
||||
assert_zu_eq(xallocx(p, large0, large2 - large0, 0), large2,
|
||||
assert_zu_eq(xallocx(p, large0, large2 - large0, flags), large2,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_eq(xallocx(p, large2, 0, 0), large2,
|
||||
assert_zu_eq(xallocx(p, large2, 0, flags), large2,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size+extra overflow. */
|
||||
assert_zu_lt(xallocx(p, large2, hugemax - large2 + 1, 0), huge0,
|
||||
assert_zu_lt(xallocx(p, large2, hugemax - large2 + 1, flags), huge0,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
dallocx(p, 0);
|
||||
dallocx(p, flags);
|
||||
}
|
||||
TEST_END
|
||||
|
||||
TEST_BEGIN(test_extra_huge)
|
||||
{
|
||||
int flags = MALLOCX_ARENA(arena_ind());
|
||||
size_t largemax, huge0, huge1, huge2, hugemax;
|
||||
void *p;
|
||||
|
||||
@@ -294,56 +315,163 @@ TEST_BEGIN(test_extra_huge)
|
||||
huge2 = get_huge_size(2);
|
||||
hugemax = get_huge_size(get_nhuge()-1);
|
||||
|
||||
p = mallocx(huge2, 0);
|
||||
p = mallocx(huge2, flags);
|
||||
assert_ptr_not_null(p, "Unexpected mallocx() error");
|
||||
|
||||
assert_zu_eq(xallocx(p, huge2, 0, 0), huge2,
|
||||
assert_zu_eq(xallocx(p, huge2, 0, flags), huge2,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size decrease with zero extra. */
|
||||
assert_zu_ge(xallocx(p, huge0, 0, 0), huge0,
|
||||
assert_zu_ge(xallocx(p, huge0, 0, flags), huge0,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_ge(xallocx(p, largemax, 0, 0), huge0,
|
||||
assert_zu_ge(xallocx(p, largemax, 0, flags), huge0,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_eq(xallocx(p, huge2, 0, 0), huge2,
|
||||
assert_zu_eq(xallocx(p, huge2, 0, flags), huge2,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size decrease with non-zero extra. */
|
||||
assert_zu_eq(xallocx(p, huge0, huge2 - huge0, 0), huge2,
|
||||
assert_zu_eq(xallocx(p, huge0, huge2 - huge0, flags), huge2,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_eq(xallocx(p, huge1, huge2 - huge1, 0), huge2,
|
||||
assert_zu_eq(xallocx(p, huge1, huge2 - huge1, flags), huge2,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_eq(xallocx(p, huge0, huge1 - huge0, 0), huge1,
|
||||
assert_zu_eq(xallocx(p, huge0, huge1 - huge0, flags), huge1,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_ge(xallocx(p, largemax, huge0 - largemax, 0), huge0,
|
||||
assert_zu_ge(xallocx(p, largemax, huge0 - largemax, flags), huge0,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_ge(xallocx(p, huge0, 0, 0), huge0,
|
||||
assert_zu_ge(xallocx(p, huge0, 0, flags), huge0,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size increase with zero extra. */
|
||||
assert_zu_le(xallocx(p, huge2, 0, 0), huge2,
|
||||
assert_zu_le(xallocx(p, huge2, 0, flags), huge2,
|
||||
"Unexpected xallocx() behavior");
|
||||
assert_zu_le(xallocx(p, hugemax+1, 0, 0), huge2,
|
||||
assert_zu_le(xallocx(p, hugemax+1, 0, flags), huge2,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_ge(xallocx(p, huge0, 0, 0), huge0,
|
||||
assert_zu_ge(xallocx(p, huge0, 0, flags), huge0,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size increase with non-zero extra. */
|
||||
assert_zu_le(xallocx(p, huge0, SIZE_T_MAX - huge0, 0), hugemax,
|
||||
assert_zu_le(xallocx(p, huge0, SIZE_T_MAX - huge0, flags), hugemax,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_ge(xallocx(p, huge0, 0, 0), huge0,
|
||||
assert_zu_ge(xallocx(p, huge0, 0, flags), huge0,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size increase with non-zero extra. */
|
||||
assert_zu_le(xallocx(p, huge0, huge2 - huge0, 0), huge2,
|
||||
assert_zu_le(xallocx(p, huge0, huge2 - huge0, flags), huge2,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
assert_zu_eq(xallocx(p, huge2, 0, 0), huge2,
|
||||
assert_zu_eq(xallocx(p, huge2, 0, flags), huge2,
|
||||
"Unexpected xallocx() behavior");
|
||||
/* Test size+extra overflow. */
|
||||
assert_zu_le(xallocx(p, huge2, hugemax - huge2 + 1, 0), hugemax,
|
||||
assert_zu_le(xallocx(p, huge2, hugemax - huge2 + 1, flags), hugemax,
|
||||
"Unexpected xallocx() behavior");
|
||||
|
||||
dallocx(p, 0);
|
||||
dallocx(p, flags);
|
||||
}
|
||||
TEST_END
|
||||
|
||||
static void
|
||||
print_filled_extents(const void *p, uint8_t c, size_t len)
|
||||
{
|
||||
const uint8_t *pc = (const uint8_t *)p;
|
||||
size_t i, range0;
|
||||
uint8_t c0;
|
||||
|
||||
malloc_printf(" p=%p, c=%#x, len=%zu:", p, c, len);
|
||||
range0 = 0;
|
||||
c0 = pc[0];
|
||||
for (i = 0; i < len; i++) {
|
||||
if (pc[i] != c0) {
|
||||
malloc_printf(" %#x[%zu..%zu)", c0, range0, i);
|
||||
range0 = i;
|
||||
c0 = pc[i];
|
||||
}
|
||||
}
|
||||
malloc_printf(" %#x[%zu..%zu)\n", c0, range0, i);
|
||||
}
|
||||
|
||||
static bool
|
||||
validate_fill(const void *p, uint8_t c, size_t offset, size_t len)
|
||||
{
|
||||
const uint8_t *pc = (const uint8_t *)p;
|
||||
bool err;
|
||||
size_t i;
|
||||
|
||||
for (i = offset, err = false; i < offset+len; i++) {
|
||||
if (pc[i] != c)
|
||||
err = true;
|
||||
}
|
||||
|
||||
if (err)
|
||||
print_filled_extents(p, c, offset + len);
|
||||
|
||||
return (err);
|
||||
}
|
||||
|
||||
static void
|
||||
test_zero(size_t szmin, size_t szmax)
|
||||
{
|
||||
int flags = MALLOCX_ARENA(arena_ind()) | MALLOCX_ZERO;
|
||||
size_t sz, nsz;
|
||||
void *p;
|
||||
#define FILL_BYTE 0x7aU
|
||||
|
||||
sz = szmax;
|
||||
p = mallocx(sz, flags);
|
||||
assert_ptr_not_null(p, "Unexpected mallocx() error");
|
||||
assert_false(validate_fill(p, 0x00, 0, sz), "Memory not filled: sz=%zu",
|
||||
sz);
|
||||
|
||||
/*
|
||||
* Fill with non-zero so that non-debug builds are more likely to detect
|
||||
* errors.
|
||||
*/
|
||||
memset(p, FILL_BYTE, sz);
|
||||
assert_false(validate_fill(p, FILL_BYTE, 0, sz),
|
||||
"Memory not filled: sz=%zu", sz);
|
||||
|
||||
/* Shrink in place so that we can expect growing in place to succeed. */
|
||||
sz = szmin;
|
||||
assert_zu_eq(xallocx(p, sz, 0, flags), sz,
|
||||
"Unexpected xallocx() error");
|
||||
assert_false(validate_fill(p, FILL_BYTE, 0, sz),
|
||||
"Memory not filled: sz=%zu", sz);
|
||||
|
||||
for (sz = szmin; sz < szmax; sz = nsz) {
|
||||
nsz = nallocx(sz+1, flags);
|
||||
assert_zu_eq(xallocx(p, sz+1, 0, flags), nsz,
|
||||
"Unexpected xallocx() failure");
|
||||
assert_false(validate_fill(p, FILL_BYTE, 0, sz),
|
||||
"Memory not filled: sz=%zu", sz);
|
||||
assert_false(validate_fill(p, 0x00, sz, nsz-sz),
|
||||
"Memory not filled: sz=%zu, nsz-sz=%zu", sz, nsz-sz);
|
||||
memset((void *)((uintptr_t)p + sz), FILL_BYTE, nsz-sz);
|
||||
assert_false(validate_fill(p, FILL_BYTE, 0, nsz),
|
||||
"Memory not filled: nsz=%zu", nsz);
|
||||
}
|
||||
|
||||
dallocx(p, flags);
|
||||
}
|
||||
|
||||
TEST_BEGIN(test_zero_large)
|
||||
{
|
||||
size_t large0, largemax;
|
||||
|
||||
/* Get size classes. */
|
||||
large0 = get_large_size(0);
|
||||
largemax = get_large_size(get_nlarge()-1);
|
||||
|
||||
test_zero(large0, largemax);
|
||||
}
|
||||
TEST_END
|
||||
|
||||
TEST_BEGIN(test_zero_huge)
|
||||
{
|
||||
size_t huge0, huge1;
|
||||
|
||||
/* Get size classes. */
|
||||
huge0 = get_huge_size(0);
|
||||
huge1 = get_huge_size(1);
|
||||
|
||||
test_zero(huge1, huge0 * 2);
|
||||
}
|
||||
TEST_END
|
||||
|
||||
@@ -359,5 +487,7 @@ main(void)
|
||||
test_size_extra_overflow,
|
||||
test_extra_small,
|
||||
test_extra_large,
|
||||
test_extra_huge));
|
||||
test_extra_huge,
|
||||
test_zero_large,
|
||||
test_zero_huge));
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user