Include dependency graph for dlmalloc.c:

Data Structures
struct	malloc_chunk

struct	malloc_tree_chunk

struct	malloc_segment

struct	malloc_state

struct	malloc_params

Macros
#define	assert(x)

#define	DEBUG 0

#define	LOCK_AT_FORK 0

#define	malloc_getpagesize sysconf(_SC_PAGE_SIZE)

#define	SIZE_T_SIZE (sizeof(size_t))

#define	SIZE_T_BITSIZE (sizeof(size_t) << 3)

#define	SIZE_T_ZERO ((size_t)0)

#define	SIZE_T_ONE ((size_t)1)

#define	SIZE_T_TWO ((size_t)2)

#define	SIZE_T_FOUR ((size_t)4)

#define	TWO_SIZE_T_SIZES (SIZE_T_SIZE<<1)

#define	FOUR_SIZE_T_SIZES (SIZE_T_SIZE<<2)

#define	SIX_SIZE_T_SIZES (FOUR_SIZE_T_SIZES+TWO_SIZE_T_SIZES)

#define	HALF_MAX_SIZE_T (MAX_SIZE_T / 2U)

#define	CHUNK_ALIGN_MASK (MALLOC_ALIGNMENT - SIZE_T_ONE)

#define	is_aligned(A) (((size_t)((A)) & (CHUNK_ALIGN_MASK)) == 0)

#define	align_offset(A)

#define	MFAIL ((void*)(MAX_SIZE_T))

#define	CMFAIL ((char)(MFAIL)) / defined for convenience */

#define	CALL_MORECORE(S) MFAIL
	Define CALL_MORECORE. More...

#define	USE_MMAP_BIT (SIZE_T_ZERO)
	Define CALL_MMAP/CALL_MUNMAP/CALL_DIRECT_MMAP. More...

#define	MMAP(s) MFAIL

#define	MUNMAP(a, s) (-1)

#define	DIRECT_MMAP(s) MFAIL

#define	CALL_DIRECT_MMAP(s) DIRECT_MMAP(s)

#define	CALL_MMAP(s) MMAP(s)

#define	CALL_MUNMAP(a, s) MUNMAP((a), (s))

#define	CALL_MREMAP(addr, osz, nsz, mv) MFAIL
	Define CALL_MREMAP. More...

#define	USE_NONCONTIGUOUS_BIT (4U)

#define	USE_NOEXPAND_BIT (8U)

#define	USE_TRACE_BIT (16U)

#define	EXTERN_BIT (8U)

#define	USE_LOCK_BIT (0U)

#define	INITIAL_LOCK(l) (0)

#define	DESTROY_LOCK(l) (0)

#define	ACQUIRE_MALLOC_GLOBAL_LOCK()

#define	RELEASE_MALLOC_GLOBAL_LOCK()

#define	MCHUNK_SIZE (sizeof(mchunk))

#define	CHUNK_OVERHEAD (SIZE_T_SIZE)

#define	MMAP_CHUNK_OVERHEAD (TWO_SIZE_T_SIZES)

#define	MMAP_FOOT_PAD (FOUR_SIZE_T_SIZES)

#define	MIN_CHUNK_SIZE ((MCHUNK_SIZE + CHUNK_ALIGN_MASK) & ~CHUNK_ALIGN_MASK)

#define	chunk2mem(p) ((void)((char)(p) + TWO_SIZE_T_SIZES))

#define	mem2chunk(mem) ((mchunkptr)((char*)(mem) - TWO_SIZE_T_SIZES))

#define	align_as_chunk(A) (mchunkptr)((A) + align_offset(chunk2mem(A)))

#define	MAX_REQUEST ((-MIN_CHUNK_SIZE) << 2)

#define	MIN_REQUEST (MIN_CHUNK_SIZE - CHUNK_OVERHEAD - SIZE_T_ONE)

#define	pad_request(req) (((req) + CHUNK_OVERHEAD + CHUNK_ALIGN_MASK) & ~CHUNK_ALIGN_MASK)

#define	request2size(req) (((req) < MIN_REQUEST)? MIN_CHUNK_SIZE : pad_request(req))

#define	PINUSE_BIT (SIZE_T_ONE)

#define	CINUSE_BIT (SIZE_T_TWO)

#define	FLAG4_BIT (SIZE_T_FOUR)

#define	INUSE_BITS (PINUSE_BIT\|CINUSE_BIT)

#define	FLAG_BITS (PINUSE_BIT\|CINUSE_BIT\|FLAG4_BIT)

#define	FENCEPOST_HEAD (INUSE_BITS\|SIZE_T_SIZE)

#define	cinuse(p) ((p)->head & CINUSE_BIT)

#define	pinuse(p) ((p)->head & PINUSE_BIT)

#define	flag4inuse(p) ((p)->head & FLAG4_BIT)

#define	is_inuse(p) (((p)->head & INUSE_BITS) != PINUSE_BIT)

#define	is_mmapped(p) (((p)->head & INUSE_BITS) == 0)

#define	chunksize(p) ((p)->head & ~(FLAG_BITS))

#define	clear_pinuse(p) ((p)->head &= ~PINUSE_BIT)

#define	set_flag4(p) ((p)->head \|= FLAG4_BIT)

#define	clear_flag4(p) ((p)->head &= ~FLAG4_BIT)

#define	chunk_plus_offset(p, s) ((mchunkptr)(((char*)(p)) + (s)))

#define	chunk_minus_offset(p, s) ((mchunkptr)(((char*)(p)) - (s)))

#define	next_chunk(p) ((mchunkptr)( ((char*)(p)) + ((p)->head & ~FLAG_BITS)))

#define	prev_chunk(p) ((mchunkptr)( ((char*)(p)) - ((p)->prev_foot) ))

#define	next_pinuse(p) ((next_chunk(p)->head) & PINUSE_BIT)

#define	get_foot(p, s) (((mchunkptr)((char*)(p) + (s)))->prev_foot)

#define	set_foot(p, s) (((mchunkptr)((char*)(p) + (s)))->prev_foot = (s))

#define	set_size_and_pinuse_of_free_chunk(p, s) ((p)->head = (s\|PINUSE_BIT), set_foot(p, s))

#define	set_free_with_pinuse(p, s, n) (clear_pinuse(n), set_size_and_pinuse_of_free_chunk(p, s))

#define	overhead_for(p) (is_mmapped(p)? MMAP_CHUNK_OVERHEAD : CHUNK_OVERHEAD)

#define	calloc_must_clear(p) (1)

#define	leftmost_child(t) ((t)->child[0] != 0? (t)->child[0] : (t)->child[1])

#define	is_mmapped_segment(S) ((S)->sflags & USE_MMAP_BIT)

#define	is_extern_segment(S) ((S)->sflags & EXTERN_BIT)

#define	NSMALLBINS (32U)

#define	NTREEBINS (32U)

#define	SMALLBIN_SHIFT (3U)

#define	SMALLBIN_WIDTH (SIZE_T_ONE << SMALLBIN_SHIFT)

#define	TREEBIN_SHIFT (8U)

#define	MIN_LARGE_SIZE (SIZE_T_ONE << TREEBIN_SHIFT)

#define	MAX_SMALL_SIZE (MIN_LARGE_SIZE - SIZE_T_ONE)

#define	MAX_SMALL_REQUEST (MAX_SMALL_SIZE - CHUNK_ALIGN_MASK - CHUNK_OVERHEAD)

#define	ensure_initialization() (void)(mparams.magic != 0 \|\| init_mparams())

#define	gm (&_gm_)

#define	is_global(M) ((M) == &_gm_)

#define	is_initialized(M) ((M)->top != 0)

#define	use_lock(M) ((M)->mflags & USE_LOCK_BIT)

#define	enable_lock(M) ((M)->mflags \|= USE_LOCK_BIT)

#define	disable_lock(M)

#define	use_mmap(M) ((M)->mflags & USE_MMAP_BIT)

#define	enable_mmap(M) ((M)->mflags \|= USE_MMAP_BIT)

#define	disable_mmap(M)

#define	use_noncontiguous(M) ((M)->mflags & USE_NONCONTIGUOUS_BIT)

#define	disable_contiguous(M) ((M)->mflags \|= USE_NONCONTIGUOUS_BIT)

#define	use_noexpand(M) ((M)->mflags & USE_NOEXPAND_BIT)

#define	disable_expand(M) ((M)->mflags \|= USE_NOEXPAND_BIT)

#define	use_trace(M) ((M)->mflags & USE_TRACE_BIT)

#define	enable_trace(M) ((M)->mflags \|= USE_TRACE_BIT)

#define	disable_trace(M) ((M)->mflags &= ~USE_TRACE_BIT)

#define	set_lock(M, L)

#define	page_align(S) (((S) + (mparams.page_size - SIZE_T_ONE)) & ~(mparams.page_size - SIZE_T_ONE))

#define	granularity_align(S)

#define	mmap_align(S) page_align(S)

#define	SYS_ALLOC_PADDING (TOP_FOOT_SIZE + MALLOC_ALIGNMENT)

#define	is_page_aligned(S) (((size_t)(S) & (mparams.page_size - SIZE_T_ONE)) == 0)

#define	is_granularity_aligned(S) (((size_t)(S) & (mparams.granularity - SIZE_T_ONE)) == 0)

#define	segment_holds(S, A) ((char)(A) >= S->base && (char)(A) < S->base + S->size)

#define	should_trim(M, s) ((s) > (M)->trim_check)

#define	TOP_FOOT_SIZE (align_offset(chunk2mem(0))+pad_request(sizeof(struct malloc_segment))+MIN_CHUNK_SIZE)

#define	PREACTION(M) (0)

#define	POSTACTION(M)

#define	CORRUPTION_ERROR_ACTION(m) DLM_ABORT

#define	USAGE_ERROR_ACTION(m, p) DLM_ABORT

#define	check_free_chunk(M, P)

#define	check_inuse_chunk(M, P)

#define	check_malloced_chunk(M, P, N)

#define	check_mmapped_chunk(M, P)

#define	check_malloc_state(M)

#define	check_top_chunk(M, P)

#define	is_small(s) (((s) >> SMALLBIN_SHIFT) < NSMALLBINS)

#define	small_index(s) (bindex_t)((s) >> SMALLBIN_SHIFT)

#define	small_index2size(i) ((i) << SMALLBIN_SHIFT)

#define	MIN_SMALL_INDEX (small_index(MIN_CHUNK_SIZE))

#define	smallbin_at(M, i) ((sbinptr)((char*)&((M)->smallbins[(i)<<1])))

#define	treebin_at(M, i) (&((M)->treebins[i]))

#define	compute_tree_index(S, I)

#define	bit_for_tree_index(i) (i == NTREEBINS-1)? (SIZE_T_BITSIZE-1) : (((i) >> 1) + TREEBIN_SHIFT - 2)

#define	leftshift_for_tree_index(i)

#define	minsize_for_tree_index(i)

#define	idx2bit(i) ((binmap_t)(1) << (i))

#define	mark_smallmap(M, i) ((M)->smallmap \|= idx2bit(i))

#define	clear_smallmap(M, i) ((M)->smallmap &= ~idx2bit(i))

#define	smallmap_is_marked(M, i) ((M)->smallmap & idx2bit(i))

#define	mark_treemap(M, i) ((M)->treemap \|= idx2bit(i))

#define	clear_treemap(M, i) ((M)->treemap &= ~idx2bit(i))

#define	treemap_is_marked(M, i) ((M)->treemap & idx2bit(i))

#define	least_bit(x) ((x) & -(x))

#define	left_bits(x) ((x<<1) \| -(x<<1))

#define	same_or_left_bits(x) ((x) \| -(x))

#define	compute_bit2idx(X, I)

#define	ok_address(M, a) ((char*)(a) >= (M)->least_addr)

#define	ok_next(p, n) ((char)(p) < (char)(n))

#define	ok_inuse(p) is_inuse(p)

#define	ok_pinuse(p) pinuse(p)

#define	ok_magic(M) (1)

#define	RTCHECK(e) (e)

#define	mark_inuse_foot(M, p, s)

#define	set_inuse(M, p, s)

#define	set_inuse_and_pinuse(M, p, s)

#define	set_size_and_pinuse_of_inuse_chunk(M, p, s) ((p)->head = (s\|PINUSE_BIT\|CINUSE_BIT))

#define	insert_small_chunk(M, P, S)

#define	unlink_small_chunk(M, P, S)

#define	unlink_first_small_chunk(M, B, P, I)

#define	replace_dv(M, P, S)

#define	insert_large_chunk(M, X, S)

#define	unlink_large_chunk(M, X)

#define	insert_chunk(M, P, S)

#define	unlink_chunk(M, P, S)

#define	internal_malloc(m, b) dlmalloc(b)

#define	internal_free(m, mem) dlfree(mem)

#define	fm gm

Typedefs
typedef struct malloc_chunk	mchunk

typedef struct malloc_chunk *	mchunkptr

typedef struct malloc_chunk *	sbinptr

typedef unsigned int	bindex_t

typedef unsigned int	binmap_t

typedef unsigned int	flag_t

typedef struct malloc_tree_chunk	tchunk

typedef struct malloc_tree_chunk *	tchunkptr

typedef struct malloc_tree_chunk *	tbinptr

typedef struct malloc_segment	msegment

typedef struct malloc_segment *	msegmentptr

typedef struct malloc_state *	mstate

Functions
static CLIB_NOSANITIZE_ADDR msegmentptr	segment_holding (mstate m, char *addr)

static CLIB_NOSANITIZE_ADDR int	has_segment_link (mstate m, msegmentptr ss)

static int	init_mparams (void)

static int	change_mparam (int param_number, int value)

static CLIB_NOSANITIZE_ADDR struct dlmallinfo	internal_mallinfo (mstate m)

static void	internal_malloc_stats (mstate m)

static void *	mmap_alloc (mstate m, size_t nb)

static mchunkptr	mmap_resize (mstate m, mchunkptr oldp, size_t nb, int flags)

static CLIB_NOSANITIZE_ADDR void	init_top (mstate m, mchunkptr p, size_t psize)

static void	init_bins (mstate m)

static CLIB_NOSANITIZE_ADDR void *	prepend_alloc (mstate m, char newbase, char oldbase, size_t nb)

static CLIB_NOSANITIZE_ADDR void	add_segment (mstate m, char *tbase, size_t tsize, flag_t mmapped)

static CLIB_NOSANITIZE_ADDR void *	sys_alloc (mstate m, size_t nb)

static CLIB_NOSANITIZE_ADDR size_t	release_unused_segments (mstate m)

static CLIB_NOSANITIZE_ADDR int	sys_trim (mstate m, size_t pad)

static CLIB_NOSANITIZE_ADDR void	dispose_chunk (mstate m, mchunkptr p, size_t psize)

static CLIB_NOSANITIZE_ADDR void *	tmalloc_large (mstate m, size_t nb)

static CLIB_NOSANITIZE_ADDR void *	tmalloc_small (mstate m, size_t nb)

void *	dlmalloc (size_t bytes)

void	dlfree (void *mem)

void *	dlcalloc (size_t n_elements, size_t elem_size)

static mchunkptr	try_realloc_chunk (mstate m, mchunkptr p, size_t nb, int can_move)

static CLIB_NOSANITIZE_ADDR void *	internal_memalign (mstate m, size_t alignment, size_t bytes)

static void **	ialloc (mstate m, size_t n_elements, size_t sizes, int opts, void chunks[])

static size_t	internal_bulk_free (mstate m, void *array[], size_t nelem)

void *	dlrealloc (void *oldmem, size_t bytes)

void *	dlrealloc_in_place (void *oldmem, size_t bytes)

void *	dlmemalign (size_t alignment, size_t bytes)

int	dlposix_memalign (void **pp, size_t alignment, size_t bytes)

void *	dlvalloc (size_t bytes)

void *	dlpvalloc (size_t bytes)

void **	dlindependent_calloc (size_t n_elements, size_t elem_size, void *chunks[])

void **	dlindependent_comalloc (size_t n_elements, size_t sizes[], void *chunks[])

size_t	dlbulk_free (void *array[], size_t nelem)

int	dlmalloc_trim (size_t pad)

size_t	dlmalloc_footprint (void)

size_t	dlmalloc_max_footprint (void)

size_t	dlmalloc_footprint_limit (void)

size_t	dlmalloc_set_footprint_limit (size_t bytes)

struct dlmallinfo	dlmallinfo (void)

void	dlmalloc_stats ()

int	dlmallopt (int param_number, int value)

size_t	dlmalloc_usable_size (void *mem)

Variables
static struct malloc_params	mparams

Macro Definition Documentation

◆ ACQUIRE_MALLOC_GLOBAL_LOCK

#define ACQUIRE_MALLOC_GLOBAL_LOCK ( )

Definition at line 393 of file dlmalloc.c.

◆ align_as_chunk

#define align_as_chunk ( A ) (mchunkptr)((A) + align_offset(chunk2mem(A)))

Definition at line 807 of file dlmalloc.c.

◆ align_offset

#define align_offset ( A )

Value:

((((size_t)(A) & CHUNK_ALIGN_MASK) == 0)? 0 :\

((MALLOC_ALIGNMENT - ((size_t)(A) & CHUNK_ALIGN_MASK)) & CHUNK_ALIGN_MASK))

CHUNK_ALIGN_MASK

#define CHUNK_ALIGN_MASK

Definition: dlmalloc.c:194

A

#define A(x)

Definition: main.c:1048

MALLOC_ALIGNMENT

#define MALLOC_ALIGNMENT

Definition: dlmalloc.h:633

Definition at line 200 of file dlmalloc.c.

◆ assert

#define assert ( x )

Definition at line 31 of file dlmalloc.c.

◆ bit_for_tree_index

#define bit_for_tree_index ( i ) (i == NTREEBINS-1)? (SIZE_T_BITSIZE-1) : (((i) >> 1) + TREEBIN_SHIFT - 2)

Definition at line 1491 of file dlmalloc.c.

◆ CALL_DIRECT_MMAP

#define CALL_DIRECT_MMAP ( s ) DIRECT_MMAP(s)

Definition at line 328 of file dlmalloc.c.

◆ CALL_MMAP

#define CALL_MMAP ( s ) MMAP(s)

Definition at line 329 of file dlmalloc.c.

◆ CALL_MORECORE

#define CALL_MORECORE ( S ) MFAIL

Define CALL_MORECORE.

Definition at line 298 of file dlmalloc.c.

◆ CALL_MREMAP

#define CALL_MREMAP	(	addr,
		osz,
		nsz,
		mv
	)	MFAIL

Define CALL_MREMAP.

Definition at line 343 of file dlmalloc.c.

◆ CALL_MUNMAP

#define CALL_MUNMAP	(	a,
		s
	)	MUNMAP((a), (s))

Definition at line 330 of file dlmalloc.c.

◆ calloc_must_clear

#define calloc_must_clear ( p ) (1)

Definition at line 885 of file dlmalloc.c.

◆ check_free_chunk

#define check_free_chunk	(	M,
		P
	)

Definition at line 1386 of file dlmalloc.c.

◆ check_inuse_chunk

#define check_inuse_chunk	(	M,
		P
	)

Definition at line 1387 of file dlmalloc.c.

◆ check_malloc_state

#define check_malloc_state ( M )

Definition at line 1390 of file dlmalloc.c.

◆ check_malloced_chunk

#define check_malloced_chunk	(	M,
		P,
		N
	)

Definition at line 1388 of file dlmalloc.c.

◆ check_mmapped_chunk

#define check_mmapped_chunk	(	M,
		P
	)

Definition at line 1389 of file dlmalloc.c.

◆ check_top_chunk

#define check_top_chunk	(	M,
		P
	)

Definition at line 1391 of file dlmalloc.c.

◆ chunk2mem

#define chunk2mem ( p ) ((void*)((char*)(p) + TWO_SIZE_T_SIZES))

Definition at line 804 of file dlmalloc.c.

◆ CHUNK_ALIGN_MASK

#define CHUNK_ALIGN_MASK (MALLOC_ALIGNMENT - SIZE_T_ONE)

Definition at line 194 of file dlmalloc.c.

◆ chunk_minus_offset

#define chunk_minus_offset	(	p,
		s
	)	((mchunkptr)(((char*)(p)) - (s)))

Definition at line 856 of file dlmalloc.c.

◆ CHUNK_OVERHEAD

#define CHUNK_OVERHEAD (SIZE_T_SIZE)

Definition at line 791 of file dlmalloc.c.

◆ chunk_plus_offset

#define chunk_plus_offset	(	p,
		s
	)	((mchunkptr)(((char*)(p)) + (s)))

Definition at line 855 of file dlmalloc.c.

◆ chunksize

#define chunksize ( p ) ((p)->head & ~(FLAG_BITS))

Definition at line 848 of file dlmalloc.c.

◆ cinuse

#define cinuse ( p ) ((p)->head & CINUSE_BIT)

Definition at line 842 of file dlmalloc.c.

◆ CINUSE_BIT

#define CINUSE_BIT (SIZE_T_TWO)

Definition at line 833 of file dlmalloc.c.

◆ clear_flag4

#define clear_flag4 ( p ) ((p)->head &= ~FLAG4_BIT)

Definition at line 852 of file dlmalloc.c.

◆ clear_pinuse

#define clear_pinuse ( p ) ((p)->head &= ~PINUSE_BIT)

Definition at line 850 of file dlmalloc.c.

◆ clear_smallmap

#define clear_smallmap	(	M,
		i
	)	((M)->smallmap &= ~idx2bit(i))

Definition at line 1512 of file dlmalloc.c.

◆ clear_treemap

#define clear_treemap	(	M,
		i
	)	((M)->treemap &= ~idx2bit(i))

Definition at line 1516 of file dlmalloc.c.

◆ CMFAIL

#define CMFAIL ((char*)(MFAIL)) /* defined for convenience */

Definition at line 215 of file dlmalloc.c.

◆ compute_bit2idx

#define compute_bit2idx	(	X,
		I
	)

Value:

{\
  unsigned int Y = X - 1;\
  unsigned int K = Y >> (16-4) & 16;\
  unsigned int N = K;        Y >>= K;\
  N += K = Y >> (8-3) &  8;  Y >>= K;\
  N += K = Y >> (4-2) &  4;  Y >>= K;\
  N += K = Y >> (2-1) &  2;  Y >>= K;\
  N += K = Y >> (1-0) &  1;  Y >>= K;\
  I = (bindex_t)(N + Y);\
}

Definition at line 1558 of file dlmalloc.c.

◆ compute_tree_index

#define compute_tree_index	(	S,
		I
	)

Value:

{\
  size_t X = S >> TREEBIN_SHIFT;\
  if (X == 0)\
    I = 0;\
  else if (X > 0xFFFF)\
    I = NTREEBINS-1;\
  else {\
    unsigned int Y = (unsigned int)X;\
    unsigned int N = ((Y - 0x100) >> 16) & 8;\
    unsigned int K = (((Y <<= N) - 0x1000) >> 16) & 4;\
    N += K;\
    N += K = (((Y <<= K) - 0x4000) >> 16) & 2;\
    K = 14 - N + ((Y <<= K) >> 15);\
    I = (K << 1) + ((S >> (K + (TREEBIN_SHIFT-1)) & 1));\
  }\
}

Definition at line 1471 of file dlmalloc.c.

◆ CORRUPTION_ERROR_ACTION

#define CORRUPTION_ERROR_ACTION ( m ) DLM_ABORT

Definition at line 1372 of file dlmalloc.c.

◆ DEBUG

#define DEBUG 0

Definition at line 33 of file dlmalloc.c.

◆ DESTROY_LOCK

#define DESTROY_LOCK ( l ) (0)

Definition at line 392 of file dlmalloc.c.

◆ DIRECT_MMAP

#define DIRECT_MMAP ( s ) MFAIL

Definition at line 327 of file dlmalloc.c.

◆ disable_contiguous

#define disable_contiguous ( M ) ((M)->mflags |= USE_NONCONTIGUOUS_BIT)

Definition at line 1247 of file dlmalloc.c.

◆ disable_expand

#define disable_expand ( M ) ((M)->mflags |= USE_NOEXPAND_BIT)

Definition at line 1249 of file dlmalloc.c.

◆ disable_lock

#define disable_lock ( M )

Definition at line 1235 of file dlmalloc.c.

◆ disable_mmap

#define disable_mmap ( M )

Definition at line 1243 of file dlmalloc.c.

◆ disable_trace

#define disable_trace ( M ) ((M)->mflags &= ~USE_TRACE_BIT)

Definition at line 1252 of file dlmalloc.c.

◆ enable_lock

#define enable_lock ( M ) ((M)->mflags |= USE_LOCK_BIT)

Definition at line 1231 of file dlmalloc.c.

◆ enable_mmap

#define enable_mmap ( M ) ((M)->mflags |= USE_MMAP_BIT)

Definition at line 1239 of file dlmalloc.c.

◆ enable_trace

#define enable_trace ( M ) ((M)->mflags |= USE_TRACE_BIT)

Definition at line 1251 of file dlmalloc.c.

◆ ensure_initialization

#define ensure_initialization ( ) (void)(mparams.magic != 0 || init_mparams())

Definition at line 1213 of file dlmalloc.c.

◆ EXTERN_BIT

#define EXTERN_BIT (8U)

Definition at line 356 of file dlmalloc.c.

◆ FENCEPOST_HEAD

#define FENCEPOST_HEAD (INUSE_BITS|SIZE_T_SIZE)

Definition at line 839 of file dlmalloc.c.

◆ FLAG4_BIT

#define FLAG4_BIT (SIZE_T_FOUR)

Definition at line 834 of file dlmalloc.c.

◆ flag4inuse

#define flag4inuse ( p ) ((p)->head & FLAG4_BIT)

Definition at line 844 of file dlmalloc.c.

◆ FLAG_BITS

#define FLAG_BITS (PINUSE_BIT|CINUSE_BIT|FLAG4_BIT)

Definition at line 836 of file dlmalloc.c.

◆ fm

#define fm gm

◆ FOUR_SIZE_T_SIZES

#define FOUR_SIZE_T_SIZES (SIZE_T_SIZE<<2)

Definition at line 189 of file dlmalloc.c.

◆ get_foot

#define get_foot	(	p,
		s
	)	(((mchunkptr)((char*)(p) + (s)))->prev_foot)

Definition at line 866 of file dlmalloc.c.

◆ gm

#define gm (&_gm_)

Definition at line 1219 of file dlmalloc.c.

◆ granularity_align

#define granularity_align ( S )

Value:

(((S) + (mparams.granularity - SIZE_T_ONE))\

& ~(mparams.granularity - SIZE_T_ONE))

mparams

static struct malloc_params mparams

Definition: dlmalloc.c:1210

S

#define S(mp)

Definition: vat_helper_macros.h:66

SIZE_T_ONE

#define SIZE_T_ONE

Definition: dlmalloc.c:185

malloc_params::granularity

size_t granularity

Definition: dlmalloc.c:1204

Definition at line 1264 of file dlmalloc.c.

◆ HALF_MAX_SIZE_T

#define HALF_MAX_SIZE_T (MAX_SIZE_T / 2U)

Definition at line 191 of file dlmalloc.c.

◆ idx2bit

#define idx2bit ( i ) ((binmap_t)(1) << (i))

Definition at line 1508 of file dlmalloc.c.

◆ INITIAL_LOCK

#define INITIAL_LOCK ( l ) (0)

Definition at line 391 of file dlmalloc.c.

◆ insert_chunk

#define insert_chunk	(	M,
		P,
		S
	)

Value:

if (is_small(S)) insert_small_chunk(M, P, S)\

else { tchunkptr TP = (tchunkptr)(P); insert_large_chunk(M, TP, S); }

malloc_tree_chunk

Definition: dlmalloc.c:979

S

#define S(mp)

Definition: vat_helper_macros.h:66

insert_large_chunk

#define insert_large_chunk(M, X, S)

Definition: dlmalloc.c:2248

P

#define P(fmt,...)

insert_small_chunk

#define insert_small_chunk(M, P, S)

Definition: dlmalloc.c:2170

tchunkptr

struct malloc_tree_chunk * tchunkptr

Definition: dlmalloc.c:992

is_small

#define is_small(s)

Definition: dlmalloc.c:1417

M

#define M(T, mp)

Definition: vat_helper_macros.h:23

Definition at line 2389 of file dlmalloc.c.

◆ insert_large_chunk

#define insert_large_chunk	(	M,
		X,
		S
	)

Value:

{\
  tbinptr* H;\
  bindex_t I;\
  compute_tree_index(S, I);\
  H = treebin_at(M, I);\
  X->index = I;\
  X->child[0] = X->child[1] = 0;\
  if (!treemap_is_marked(M, I)) {\
    mark_treemap(M, I);\
    *H = X;\
    X->parent = (tchunkptr)H;\
    X->fd = X->bk = X;\
  }\
  else {\
    tchunkptr T = *H;\
    size_t K = S << leftshift_for_tree_index(I);\
    for (;;) {\
      if (chunksize(T) != S) {\
        tchunkptr* C = &(T->child[(K >> (SIZE_T_BITSIZE-SIZE_T_ONE)) & 1]);\
        K <<= 1;\
        if (*C != 0)\
          T = *C;\
        else if (RTCHECK(ok_address(M, C))) {\
          *C = X;\
          X->parent = T;\
          X->fd = X->bk = X;\
          break;\
        }\
        else {\
          CORRUPTION_ERROR_ACTION(M);\
          break;\
        }\
      }\
      else {\
        tchunkptr F = T->fd;\
        if (RTCHECK(ok_address(M, T) && ok_address(M, F))) {\
          T->fd = F->bk = X;\
          X->fd = F;\
          X->bk = T;\
          X->parent = 0;\
          break;\
        }\
        else {\
          CORRUPTION_ERROR_ACTION(M);\
          break;\
        }\
      }\
    }\
  }\
}

Definition at line 2248 of file dlmalloc.c.

◆ insert_small_chunk

#define insert_small_chunk	(	M,
		P,
		S
	)

Value:

{\
  bindex_t I  = small_index(S);\
  mchunkptr B = smallbin_at(M, I);\
  mchunkptr F = B;\
  assert(S >= MIN_CHUNK_SIZE);\
  if (!smallmap_is_marked(M, I))\
    mark_smallmap(M, I);\
  else if (RTCHECK(ok_address(M, B->fd)))\
    F = B->fd;\
  else {\
    CORRUPTION_ERROR_ACTION(M);\
  }\
  B->fd = P;\
  F->bk = P;\
  P->fd = F;\
  P->bk = B;\
}

Definition at line 2170 of file dlmalloc.c.

◆ internal_free

#define internal_free	(	m,
		mem
	)	dlfree(mem)

Definition at line 2411 of file dlmalloc.c.

◆ internal_malloc

#define internal_malloc	(	m,
		b
	)	dlmalloc(b)

Definition at line 2410 of file dlmalloc.c.

◆ INUSE_BITS

#define INUSE_BITS (PINUSE_BIT|CINUSE_BIT)

Definition at line 835 of file dlmalloc.c.

◆ is_aligned

#define is_aligned ( A ) (((size_t)((A)) & (CHUNK_ALIGN_MASK)) == 0)

Definition at line 197 of file dlmalloc.c.

◆ is_extern_segment

#define is_extern_segment ( S ) ((S)->sflags & EXTERN_BIT)

Definition at line 1063 of file dlmalloc.c.

◆ is_global

#define is_global ( M ) ((M) == &_gm_)

Definition at line 1220 of file dlmalloc.c.

◆ is_granularity_aligned

#define is_granularity_aligned ( S ) (((size_t)(S) & (mparams.granularity - SIZE_T_ONE)) == 0)

Definition at line 1281 of file dlmalloc.c.

◆ is_initialized

#define is_initialized ( M ) ((M)->top != 0)

Definition at line 1224 of file dlmalloc.c.

◆ is_inuse

#define is_inuse ( p ) (((p)->head & INUSE_BITS) != PINUSE_BIT)

Definition at line 845 of file dlmalloc.c.

◆ is_mmapped

#define is_mmapped ( p ) (((p)->head & INUSE_BITS) == 0)

Definition at line 846 of file dlmalloc.c.

◆ is_mmapped_segment

#define is_mmapped_segment ( S ) ((S)->sflags & USE_MMAP_BIT)

Definition at line 1062 of file dlmalloc.c.

◆ is_page_aligned

#define is_page_aligned ( S ) (((size_t)(S) & (mparams.page_size - SIZE_T_ONE)) == 0)

Definition at line 1279 of file dlmalloc.c.

◆ is_small

#define is_small ( s ) (((s) >> SMALLBIN_SHIFT) < NSMALLBINS)

Definition at line 1417 of file dlmalloc.c.

◆ least_bit

#define least_bit ( x ) ((x) & -(x))

Definition at line 1520 of file dlmalloc.c.

◆ left_bits

#define left_bits ( x ) ((x<<1) | -(x<<1))

Definition at line 1523 of file dlmalloc.c.

◆ leftmost_child

#define leftmost_child ( t ) ((t)->child[0] != 0? (t)->child[0] : (t)->child[1])

Definition at line 996 of file dlmalloc.c.

◆ leftshift_for_tree_index

#define leftshift_for_tree_index ( i )

Value:

((i == NTREEBINS-1)? 0 : \

((SIZE_T_BITSIZE-SIZE_T_ONE) - (((i) >> 1) + TREEBIN_SHIFT - 2)))

NTREEBINS

#define NTREEBINS

Definition: dlmalloc.c:1157

i

sll srl srl sll sra u16x4 i

Definition: vector_sse42.h:317

SIZE_T_BITSIZE

#define SIZE_T_BITSIZE

Definition: dlmalloc.c:180

SIZE_T_ONE

#define SIZE_T_ONE

Definition: dlmalloc.c:185

TREEBIN_SHIFT

#define TREEBIN_SHIFT

Definition: dlmalloc.c:1160

Definition at line 1495 of file dlmalloc.c.

◆ LOCK_AT_FORK

#define LOCK_AT_FORK 0

Definition at line 107 of file dlmalloc.c.

◆ malloc_getpagesize

#define malloc_getpagesize sysconf(_SC_PAGE_SIZE)

Definition at line 137 of file dlmalloc.c.

◆ mark_inuse_foot

#define mark_inuse_foot	(	M,
		p,
		s
	)

Definition at line 1644 of file dlmalloc.c.

◆ mark_smallmap

#define mark_smallmap	(	M,
		i
	)	((M)->smallmap \|= idx2bit(i))

Definition at line 1511 of file dlmalloc.c.

◆ mark_treemap

#define mark_treemap	(	M,
		i
	)	((M)->treemap \|= idx2bit(i))

Definition at line 1515 of file dlmalloc.c.

◆ MAX_REQUEST

#define MAX_REQUEST ((-MIN_CHUNK_SIZE) << 2)

Definition at line 810 of file dlmalloc.c.

◆ MAX_SMALL_REQUEST

#define MAX_SMALL_REQUEST (MAX_SMALL_SIZE - CHUNK_ALIGN_MASK - CHUNK_OVERHEAD)

Definition at line 1163 of file dlmalloc.c.

◆ MAX_SMALL_SIZE

#define MAX_SMALL_SIZE (MIN_LARGE_SIZE - SIZE_T_ONE)

Definition at line 1162 of file dlmalloc.c.

◆ MCHUNK_SIZE

#define MCHUNK_SIZE (sizeof(mchunk))

Definition at line 786 of file dlmalloc.c.

◆ mem2chunk

#define mem2chunk ( mem ) ((mchunkptr)((char*)(mem) - TWO_SIZE_T_SIZES))

Definition at line 805 of file dlmalloc.c.

◆ MFAIL

#define MFAIL ((void*)(MAX_SIZE_T))

Definition at line 214 of file dlmalloc.c.

◆ MIN_CHUNK_SIZE

#define MIN_CHUNK_SIZE ((MCHUNK_SIZE + CHUNK_ALIGN_MASK) & ~CHUNK_ALIGN_MASK)

Definition at line 800 of file dlmalloc.c.

◆ MIN_LARGE_SIZE

#define MIN_LARGE_SIZE (SIZE_T_ONE << TREEBIN_SHIFT)

Definition at line 1161 of file dlmalloc.c.

◆ MIN_REQUEST

#define MIN_REQUEST (MIN_CHUNK_SIZE - CHUNK_OVERHEAD - SIZE_T_ONE)

Definition at line 811 of file dlmalloc.c.

◆ MIN_SMALL_INDEX

#define MIN_SMALL_INDEX (small_index(MIN_CHUNK_SIZE))

Definition at line 1420 of file dlmalloc.c.

◆ minsize_for_tree_index

#define minsize_for_tree_index ( i )

Value:

((SIZE_T_ONE << (((i) >> 1) + TREEBIN_SHIFT)) | \

(((size_t)((i) & SIZE_T_ONE)) << (((i) >> 1) + TREEBIN_SHIFT - 1)))

i

sll srl srl sll sra u16x4 i

Definition: vector_sse42.h:317

SIZE_T_ONE

#define SIZE_T_ONE

Definition: dlmalloc.c:185

TREEBIN_SHIFT

#define TREEBIN_SHIFT

Definition: dlmalloc.c:1160

Definition at line 1500 of file dlmalloc.c.

◆ MMAP

#define MMAP ( s ) MFAIL

Definition at line 325 of file dlmalloc.c.

◆ mmap_align

#define mmap_align ( S ) page_align(S)

Definition at line 1273 of file dlmalloc.c.

◆ MMAP_CHUNK_OVERHEAD

#define MMAP_CHUNK_OVERHEAD (TWO_SIZE_T_SIZES)

Definition at line 795 of file dlmalloc.c.

◆ MMAP_FOOT_PAD

#define MMAP_FOOT_PAD (FOUR_SIZE_T_SIZES)

Definition at line 797 of file dlmalloc.c.

◆ MUNMAP

#define MUNMAP	(	a,
		s
	)	(-1)

Definition at line 326 of file dlmalloc.c.

◆ next_chunk

#define next_chunk ( p ) ((mchunkptr)( ((char*)(p)) + ((p)->head & ~FLAG_BITS)))

Definition at line 859 of file dlmalloc.c.

◆ next_pinuse

#define next_pinuse ( p ) ((next_chunk(p)->head) & PINUSE_BIT)

Definition at line 863 of file dlmalloc.c.

◆ NSMALLBINS

#define NSMALLBINS (32U)

Definition at line 1156 of file dlmalloc.c.

◆ NTREEBINS

#define NTREEBINS (32U)

Definition at line 1157 of file dlmalloc.c.

◆ ok_address

#define ok_address	(	M,
		a
	)	((char*)(a) >= (M)->least_addr)

Definition at line 1602 of file dlmalloc.c.

◆ ok_inuse

#define ok_inuse ( p ) is_inuse(p)

Definition at line 1606 of file dlmalloc.c.

◆ ok_magic

#define ok_magic ( M ) (1)

Definition at line 1626 of file dlmalloc.c.

◆ ok_next

#define ok_next	(	p,
		n
	)	((char)(p) < (char)(n))

Definition at line 1604 of file dlmalloc.c.

◆ ok_pinuse

#define ok_pinuse ( p ) pinuse(p)

Definition at line 1608 of file dlmalloc.c.

◆ overhead_for

#define overhead_for ( p ) (is_mmapped(p)? MMAP_CHUNK_OVERHEAD : CHUNK_OVERHEAD)

Definition at line 878 of file dlmalloc.c.

◆ pad_request

#define pad_request ( req ) (((req) + CHUNK_OVERHEAD + CHUNK_ALIGN_MASK) & ~CHUNK_ALIGN_MASK)

Definition at line 814 of file dlmalloc.c.

◆ page_align

#define page_align ( S ) (((S) + (mparams.page_size - SIZE_T_ONE)) & ~(mparams.page_size - SIZE_T_ONE))

Definition at line 1260 of file dlmalloc.c.

◆ pinuse

#define pinuse ( p ) ((p)->head & PINUSE_BIT)

Definition at line 843 of file dlmalloc.c.

◆ PINUSE_BIT

#define PINUSE_BIT (SIZE_T_ONE)

Definition at line 832 of file dlmalloc.c.

◆ POSTACTION

#define POSTACTION ( M )

Definition at line 1345 of file dlmalloc.c.

◆ PREACTION

#define PREACTION ( M ) (0)

Definition at line 1341 of file dlmalloc.c.

◆ prev_chunk

#define prev_chunk ( p ) ((mchunkptr)( ((char*)(p)) - ((p)->prev_foot) ))

Definition at line 860 of file dlmalloc.c.

◆ RELEASE_MALLOC_GLOBAL_LOCK

#define RELEASE_MALLOC_GLOBAL_LOCK ( )

Definition at line 394 of file dlmalloc.c.

◆ replace_dv

#define replace_dv	(	M,
		P,
		S
	)

Value:

{\
  size_t DVS = M->dvsize;\
  assert(is_small(DVS));\
  if (DVS != 0) {\
    mchunkptr DV = M->dv;\
    insert_small_chunk(M, DV, DVS);\
  }\
  M->dvsize = S;\
  M->dv = P;\
}

Definition at line 2234 of file dlmalloc.c.

◆ request2size

#define request2size ( req ) (((req) < MIN_REQUEST)? MIN_CHUNK_SIZE : pad_request(req))

Definition at line 818 of file dlmalloc.c.

◆ RTCHECK

#define RTCHECK ( e ) (e)

Definition at line 1634 of file dlmalloc.c.

◆ same_or_left_bits

#define same_or_left_bits ( x ) ((x) | -(x))

Definition at line 1526 of file dlmalloc.c.

◆ segment_holds

#define segment_holds	(	S,
		A
	)	((char)(A) >= S->base && (char)(A) < S->base + S->size)

Definition at line 1285 of file dlmalloc.c.

◆ set_flag4

#define set_flag4 ( p ) ((p)->head |= FLAG4_BIT)

Definition at line 851 of file dlmalloc.c.

◆ set_foot

#define set_foot	(	p,
		s
	)	(((mchunkptr)((char*)(p) + (s)))->prev_foot = (s))

Definition at line 867 of file dlmalloc.c.

◆ set_free_with_pinuse

#define set_free_with_pinuse	(	p,
		s,
		n
	)	(clear_pinuse(n), set_size_and_pinuse_of_free_chunk(p, s))

Definition at line 874 of file dlmalloc.c.

◆ set_inuse

#define set_inuse	(	M,
		p,
		s
	)

Value:

((p)->head = (((p)->head & PINUSE_BIT)|s|CINUSE_BIT),\

((mchunkptr)(((char*)(p)) + (s)))->head |= PINUSE_BIT)

malloc_chunk

Definition: dlmalloc.c:770

PINUSE_BIT

#define PINUSE_BIT

Definition: dlmalloc.c:832

CINUSE_BIT

#define CINUSE_BIT

Definition: dlmalloc.c:833

Definition at line 1649 of file dlmalloc.c.

◆ set_inuse_and_pinuse

#define set_inuse_and_pinuse	(	M,
		p,
		s
	)

Value:

((p)->head = (s|PINUSE_BIT|CINUSE_BIT),\

((mchunkptr)(((char*)(p)) + (s)))->head |= PINUSE_BIT)

mchunkptr

struct malloc_chunk * mchunkptr

Definition: dlmalloc.c:778

PINUSE_BIT

#define PINUSE_BIT

Definition: dlmalloc.c:832

CINUSE_BIT

#define CINUSE_BIT

Definition: dlmalloc.c:833

Definition at line 1654 of file dlmalloc.c.

◆ set_lock

#define set_lock	(	M,
		L
	)

Value:

((M)->mflags = (L)?\
  ((M)->mflags | USE_LOCK_BIT) :\
  ((M)->mflags & ~USE_LOCK_BIT))

Definition at line 1254 of file dlmalloc.c.

◆ set_size_and_pinuse_of_free_chunk

#define set_size_and_pinuse_of_free_chunk	(	p,
		s
	)	((p)->head = (s\|PINUSE_BIT), set_foot(p, s))

Definition at line 870 of file dlmalloc.c.

◆ set_size_and_pinuse_of_inuse_chunk

#define set_size_and_pinuse_of_inuse_chunk	(	M,
		p,
		s
	)	((p)->head = (s\|PINUSE_BIT\|CINUSE_BIT))

Definition at line 1659 of file dlmalloc.c.

◆ should_trim

#define should_trim	(	M,
		s
	)	((s) > (M)->trim_check)

Definition at line 1313 of file dlmalloc.c.

◆ SIX_SIZE_T_SIZES

#define SIX_SIZE_T_SIZES (FOUR_SIZE_T_SIZES+TWO_SIZE_T_SIZES)

Definition at line 190 of file dlmalloc.c.

◆ SIZE_T_BITSIZE

#define SIZE_T_BITSIZE (sizeof(size_t) << 3)

Definition at line 180 of file dlmalloc.c.

◆ SIZE_T_FOUR

#define SIZE_T_FOUR ((size_t)4)

Definition at line 187 of file dlmalloc.c.

◆ SIZE_T_ONE

#define SIZE_T_ONE ((size_t)1)

Definition at line 185 of file dlmalloc.c.

◆ SIZE_T_SIZE

#define SIZE_T_SIZE (sizeof(size_t))

Definition at line 179 of file dlmalloc.c.

◆ SIZE_T_TWO

#define SIZE_T_TWO ((size_t)2)

Definition at line 186 of file dlmalloc.c.

◆ SIZE_T_ZERO

#define SIZE_T_ZERO ((size_t)0)

Definition at line 184 of file dlmalloc.c.

◆ small_index

#define small_index ( s ) (bindex_t)((s) >> SMALLBIN_SHIFT)

Definition at line 1418 of file dlmalloc.c.

◆ small_index2size

#define small_index2size ( i ) ((i) << SMALLBIN_SHIFT)

Definition at line 1419 of file dlmalloc.c.

◆ smallbin_at

#define smallbin_at	(	M,
		i
	)	((sbinptr)((char*)&((M)->smallbins[(i)<<1])))

Definition at line 1423 of file dlmalloc.c.

◆ SMALLBIN_SHIFT

#define SMALLBIN_SHIFT (3U)

Definition at line 1158 of file dlmalloc.c.

◆ SMALLBIN_WIDTH

#define SMALLBIN_WIDTH (SIZE_T_ONE << SMALLBIN_SHIFT)

Definition at line 1159 of file dlmalloc.c.

◆ smallmap_is_marked

#define smallmap_is_marked	(	M,
		i
	)	((M)->smallmap & idx2bit(i))

Definition at line 1513 of file dlmalloc.c.

◆ SYS_ALLOC_PADDING

#define SYS_ALLOC_PADDING (TOP_FOOT_SIZE + MALLOC_ALIGNMENT)

Definition at line 1277 of file dlmalloc.c.

◆ TOP_FOOT_SIZE

#define TOP_FOOT_SIZE (align_offset(chunk2mem(0))+pad_request(sizeof(struct malloc_segment))+MIN_CHUNK_SIZE)

Definition at line 1323 of file dlmalloc.c.

◆ treebin_at

#define treebin_at	(	M,
		i
	)	(&((M)->treebins[i]))

Definition at line 1424 of file dlmalloc.c.

◆ TREEBIN_SHIFT

#define TREEBIN_SHIFT (8U)

Definition at line 1160 of file dlmalloc.c.

◆ treemap_is_marked

#define treemap_is_marked	(	M,
		i
	)	((M)->treemap & idx2bit(i))

Definition at line 1517 of file dlmalloc.c.

◆ TWO_SIZE_T_SIZES

#define TWO_SIZE_T_SIZES (SIZE_T_SIZE<<1)

Definition at line 188 of file dlmalloc.c.

◆ unlink_chunk

#define unlink_chunk	(	M,
		P,
		S
	)

Value:

if (is_small(S)) unlink_small_chunk(M, P, S)\

else { tchunkptr TP = (tchunkptr)(P); unlink_large_chunk(M, TP); }

malloc_tree_chunk

Definition: dlmalloc.c:979

S

#define S(mp)

Definition: vat_helper_macros.h:66

unlink_small_chunk

#define unlink_small_chunk(M, P, S)

Definition: dlmalloc.c:2189

unlink_large_chunk

#define unlink_large_chunk(M, X)

Definition: dlmalloc.c:2316

P

#define P(fmt,...)

tchunkptr

struct malloc_tree_chunk * tchunkptr

Definition: dlmalloc.c:992

is_small

#define is_small(s)

Definition: dlmalloc.c:1417

M

#define M(T, mp)

Definition: vat_helper_macros.h:23

Definition at line 2393 of file dlmalloc.c.

◆ unlink_first_small_chunk

#define unlink_first_small_chunk	(	M,
		B,
		P,
		I
	)

Value:

{\
  mchunkptr F = P->fd;\
  assert(P != B);\
  assert(P != F);\
  assert(chunksize(P) == small_index2size(I));\
  if (B == F) {\
    clear_smallmap(M, I);\
  }\
  else if (RTCHECK(ok_address(M, F) && F->bk == P)) {\
    F->bk = B;\
    B->fd = F;\
  }\
  else {\
    CORRUPTION_ERROR_ACTION(M);\
  }\
}

Definition at line 2215 of file dlmalloc.c.

◆ unlink_large_chunk

#define unlink_large_chunk	(	M,
		X
	)

Definition at line 2316 of file dlmalloc.c.

◆ unlink_small_chunk

#define unlink_small_chunk	(	M,
		P,
		S
	)

Value:

{\
  mchunkptr F = P->fd;\
  mchunkptr B = P->bk;\
  bindex_t I = small_index(S);\
  assert(P != B);\
  assert(P != F);\
  assert(chunksize(P) == small_index2size(I));\
  if (RTCHECK(F == smallbin_at(M,I) || (ok_address(M, F) && F->bk == P))) { \
    if (B == F) {\
      clear_smallmap(M, I);\
    }\
    else if (RTCHECK(B == smallbin_at(M,I) ||\
                     (ok_address(M, B) && B->fd == P))) {\
      F->bk = B;\
      B->fd = F;\
    }\
    else {\
      CORRUPTION_ERROR_ACTION(M);\
    }\
  }\
  else {\
    CORRUPTION_ERROR_ACTION(M);\
  }\
}

Definition at line 2189 of file dlmalloc.c.

◆ USAGE_ERROR_ACTION

#define USAGE_ERROR_ACTION	(	m,
		p
	)	DLM_ABORT

Definition at line 1376 of file dlmalloc.c.

◆ use_lock

#define use_lock ( M ) ((M)->mflags & USE_LOCK_BIT)

Definition at line 1230 of file dlmalloc.c.

◆ USE_LOCK_BIT

#define USE_LOCK_BIT (0U)

Definition at line 390 of file dlmalloc.c.

◆ use_mmap

#define use_mmap ( M ) ((M)->mflags & USE_MMAP_BIT)

Definition at line 1238 of file dlmalloc.c.

◆ USE_MMAP_BIT

#define USE_MMAP_BIT (SIZE_T_ZERO)

Define CALL_MMAP/CALL_MUNMAP/CALL_DIRECT_MMAP.

Definition at line 323 of file dlmalloc.c.

◆ use_noexpand

#define use_noexpand ( M ) ((M)->mflags & USE_NOEXPAND_BIT)

Definition at line 1248 of file dlmalloc.c.

◆ USE_NOEXPAND_BIT

#define USE_NOEXPAND_BIT (8U)

Definition at line 350 of file dlmalloc.c.

◆ use_noncontiguous

#define use_noncontiguous ( M ) ((M)->mflags & USE_NONCONTIGUOUS_BIT)

Definition at line 1246 of file dlmalloc.c.

◆ USE_NONCONTIGUOUS_BIT

#define USE_NONCONTIGUOUS_BIT (4U)

Definition at line 347 of file dlmalloc.c.

◆ use_trace

#define use_trace ( M ) ((M)->mflags & USE_TRACE_BIT)

Definition at line 1250 of file dlmalloc.c.

◆ USE_TRACE_BIT

#define USE_TRACE_BIT (16U)

Definition at line 353 of file dlmalloc.c.

Typedef Documentation

◆ bindex_t

typedef unsigned int bindex_t

Definition at line 780 of file dlmalloc.c.

◆ binmap_t

typedef unsigned int binmap_t

Definition at line 781 of file dlmalloc.c.

◆ flag_t

typedef unsigned int flag_t

Definition at line 782 of file dlmalloc.c.

◆ mchunk

typedef struct malloc_chunk mchunk

Definition at line 777 of file dlmalloc.c.

◆ mchunkptr

typedef struct malloc_chunk* mchunkptr

Definition at line 778 of file dlmalloc.c.

◆ msegment

typedef struct malloc_segment msegment

Definition at line 1065 of file dlmalloc.c.

◆ msegmentptr

typedef struct malloc_segment* msegmentptr

Definition at line 1066 of file dlmalloc.c.

◆ mstate

typedef struct malloc_state* mstate

Definition at line 1190 of file dlmalloc.c.

◆ sbinptr

typedef struct malloc_chunk* sbinptr

Definition at line 779 of file dlmalloc.c.

◆ tbinptr

typedef struct malloc_tree_chunk* tbinptr

Definition at line 993 of file dlmalloc.c.

◆ tchunk

typedef struct malloc_tree_chunk tchunk

Definition at line 991 of file dlmalloc.c.

◆ tchunkptr

typedef struct malloc_tree_chunk* tchunkptr

Definition at line 992 of file dlmalloc.c.

Function Documentation

◆ add_segment()

static CLIB_NOSANITIZE_ADDR void add_segment	(	mstate	m,
		char *	tbase,
		size_t	tsize,
		flag_t	mmapped
	)

static

Definition at line 2585 of file dlmalloc.c.

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◆ change_mparam()

static int change_mparam	(	int	param_number,
		int	value
	)

static

Definition at line 1791 of file dlmalloc.c.

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◆ dispose_chunk()

static CLIB_NOSANITIZE_ADDR void dispose_chunk	(	mstate	m,
		mchunkptr	p,
		size_t	psize
	)

static

Definition at line 2973 of file dlmalloc.c.

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◆ dlbulk_free()

size_t dlbulk_free	(	void *	array[],
		size_t	nelem
	)

Definition at line 3929 of file dlmalloc.c.

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◆ dlcalloc()

void* dlcalloc	(	size_t	n_elements,
		size_t	elem_size
	)

Definition at line 3403 of file dlmalloc.c.

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◆ dlfree()

void dlfree ( void * mem )

Definition at line 3294 of file dlmalloc.c.

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◆ dlindependent_calloc()

void** dlindependent_calloc	(	size_t	n_elements,
		size_t	elem_size,
		void *	chunks[]
	)

Definition at line 3918 of file dlmalloc.c.

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◆ dlindependent_comalloc()

void** dlindependent_comalloc	(	size_t	n_elements,
		size_t	sizes[],
		void *	chunks[]
	)

Definition at line 3924 of file dlmalloc.c.

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◆ dlmallinfo()

struct dlmallinfo dlmallinfo ( void )

Definition at line 3982 of file dlmalloc.c.

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◆ dlmalloc()

void* dlmalloc ( size_t bytes )

Definition at line 3156 of file dlmalloc.c.

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◆ dlmalloc_footprint()

size_t dlmalloc_footprint ( void )

Definition at line 3957 of file dlmalloc.c.

◆ dlmalloc_footprint_limit()

size_t dlmalloc_footprint_limit ( void )

Definition at line 3965 of file dlmalloc.c.

◆ dlmalloc_max_footprint()

size_t dlmalloc_max_footprint ( void )

Definition at line 3961 of file dlmalloc.c.

◆ dlmalloc_set_footprint_limit()

size_t dlmalloc_set_footprint_limit ( size_t bytes )

Definition at line 3970 of file dlmalloc.c.

◆ dlmalloc_stats()

void dlmalloc_stats ( )

Definition at line 3988 of file dlmalloc.c.

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◆ dlmalloc_trim()

int dlmalloc_trim ( size_t pad )

Definition at line 3947 of file dlmalloc.c.

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◆ dlmalloc_usable_size()

size_t dlmalloc_usable_size ( void * mem )

Definition at line 3997 of file dlmalloc.c.

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◆ dlmallopt()

int dlmallopt	(	int	param_number,
		int	value
	)

Definition at line 3993 of file dlmalloc.c.

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◆ dlmemalign()

void* dlmemalign	(	size_t	alignment,
		size_t	bytes
	)

Definition at line 3874 of file dlmalloc.c.

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◆ dlposix_memalign()

int dlposix_memalign	(	void **	pp,
		size_t	alignment,
		size_t	bytes
	)

Definition at line 3881 of file dlmalloc.c.

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◆ dlpvalloc()

void* dlpvalloc ( size_t bytes )

Definition at line 3911 of file dlmalloc.c.

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◆ dlrealloc()

void* dlrealloc	(	void *	oldmem,
		size_t	bytes
	)

Definition at line 3798 of file dlmalloc.c.

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◆ dlrealloc_in_place()

void* dlrealloc_in_place	(	void *	oldmem,
		size_t	bytes
	)

Definition at line 3843 of file dlmalloc.c.

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◆ dlvalloc()

void* dlvalloc ( size_t bytes )

Definition at line 3904 of file dlmalloc.c.

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◆ has_segment_link()

static CLIB_NOSANITIZE_ADDR int has_segment_link	(	mstate	m,
		msegmentptr	ss
	)

static

Definition at line 1302 of file dlmalloc.c.

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◆ ialloc()

static void** ialloc	(	mstate	m,
		size_t	n_elements,
		size_t *	sizes,
		int	opts,
		void *	chunks[]
	)

static

Definition at line 3584 of file dlmalloc.c.

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◆ init_bins()

static void init_bins ( mstate m )

static

Definition at line 2512 of file dlmalloc.c.

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◆ init_mparams()

static int init_mparams ( void )

static

Definition at line 1697 of file dlmalloc.c.

◆ init_top()

static CLIB_NOSANITIZE_ADDR void init_top	(	mstate	m,
		mchunkptr	p,
		size_t	psize
	)

static

Definition at line 2497 of file dlmalloc.c.

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◆ internal_bulk_free()

static size_t internal_bulk_free	(	mstate	m,
		void *	array[],
		size_t	nelem
	)

static

Definition at line 3710 of file dlmalloc.c.

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◆ internal_mallinfo()

static CLIB_NOSANITIZE_ADDR struct dlmallinfo internal_mallinfo ( mstate m )

static

Definition at line 2087 of file dlmalloc.c.

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◆ internal_malloc_stats()

static void internal_malloc_stats ( mstate m )

static

Definition at line 2128 of file dlmalloc.c.

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◆ internal_memalign()

static CLIB_NOSANITIZE_ADDR void* internal_memalign	(	mstate	m,
		size_t	alignment,
		size_t	bytes
	)

static

Definition at line 3503 of file dlmalloc.c.

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◆ mmap_alloc()

static void* mmap_alloc	(	mstate	m,
		size_t	nb
	)

static

Definition at line 2426 of file dlmalloc.c.

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◆ mmap_resize()

static mchunkptr mmap_resize	(	mstate	m,
		mchunkptr	oldp,
		size_t	nb,
		int	flags
	)

static

Definition at line 2458 of file dlmalloc.c.

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◆ prepend_alloc()

static CLIB_NOSANITIZE_ADDR void* prepend_alloc	(	mstate	m,
		char *	newbase,
		char *	oldbase,
		size_t	nb
	)

static

Definition at line 2542 of file dlmalloc.c.

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◆ release_unused_segments()

static CLIB_NOSANITIZE_ADDR size_t release_unused_segments ( mstate m )

static

Definition at line 2856 of file dlmalloc.c.

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◆ segment_holding()

static CLIB_NOSANITIZE_ADDR msegmentptr segment_holding	(	mstate	m,
		char *	addr
	)

static

Definition at line 1290 of file dlmalloc.c.

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◆ sys_alloc()

static CLIB_NOSANITIZE_ADDR void* sys_alloc	(	mstate	m,
		size_t	nb
	)

static

Definition at line 2641 of file dlmalloc.c.

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◆ sys_trim()

static CLIB_NOSANITIZE_ADDR int sys_trim	(	mstate	m,
		size_t	pad
	)

static

Definition at line 2904 of file dlmalloc.c.

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◆ tmalloc_large()

static CLIB_NOSANITIZE_ADDR void* tmalloc_large	(	mstate	m,
		size_t	nb
	)

static

Definition at line 3045 of file dlmalloc.c.

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◆ tmalloc_small()

static CLIB_NOSANITIZE_ADDR void* tmalloc_small	(	mstate	m,
		size_t	nb
	)

static

Definition at line 3117 of file dlmalloc.c.

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◆ try_realloc_chunk()

static mchunkptr try_realloc_chunk	(	mstate	m,
		mchunkptr	p,
		size_t	nb,
		int	can_move
	)

static

Definition at line 3423 of file dlmalloc.c.

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Variable Documentation

◆ mparams

struct malloc_params mparams

static

Definition at line 1210 of file dlmalloc.c.

Data Structures

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ ACQUIRE_MALLOC_GLOBAL_LOCK

◆ align_as_chunk

◆ align_offset

◆ assert

◆ bit_for_tree_index

◆ CALL_DIRECT_MMAP

◆ CALL_MMAP

◆ CALL_MORECORE

◆ CALL_MREMAP

◆ CALL_MUNMAP

◆ calloc_must_clear

◆ check_free_chunk

◆ check_inuse_chunk

◆ check_malloc_state

◆ check_malloced_chunk

◆ check_mmapped_chunk

◆ check_top_chunk

◆ chunk2mem

◆ CHUNK_ALIGN_MASK

◆ chunk_minus_offset

◆ CHUNK_OVERHEAD

◆ chunk_plus_offset

◆ chunksize

◆ cinuse

◆ CINUSE_BIT

◆ clear_flag4

◆ clear_pinuse

◆ clear_smallmap

◆ clear_treemap

◆ CMFAIL

◆ compute_bit2idx

◆ compute_tree_index

◆ CORRUPTION_ERROR_ACTION

◆ DEBUG

◆ DESTROY_LOCK

◆ DIRECT_MMAP

◆ disable_contiguous

◆ disable_expand

◆ disable_lock

◆ disable_mmap

◆ disable_trace

◆ enable_lock

◆ enable_mmap

◆ enable_trace

◆ ensure_initialization

◆ EXTERN_BIT

◆ FENCEPOST_HEAD

◆ FLAG4_BIT

◆ flag4inuse

◆ FLAG_BITS

◆ fm

◆ FOUR_SIZE_T_SIZES

◆ get_foot

◆ gm

◆ granularity_align

◆ HALF_MAX_SIZE_T

◆ idx2bit

◆ INITIAL_LOCK

◆ insert_chunk

◆ insert_large_chunk

◆ insert_small_chunk

◆ internal_free

◆ internal_malloc

◆ INUSE_BITS

◆ is_aligned

◆ is_extern_segment

◆ is_global

◆ is_granularity_aligned

◆ is_initialized

◆ is_inuse

◆ is_mmapped

◆ is_mmapped_segment

◆ is_page_aligned

◆ is_small