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-rw-r--r--erts/configure.in14
-rw-r--r--erts/doc/src/erlang.xml53
-rw-r--r--erts/emulator/Makefile.in25
-rw-r--r--erts/emulator/beam/elib_malloc.c2334
-rw-r--r--erts/emulator/beam/elib_stat.h45
-rw-r--r--erts/emulator/beam/erl_alloc.c36
-rw-r--r--erts/emulator/beam/erl_bif_info.c85
-rw-r--r--erts/emulator/beam/sys.h11
-rw-r--r--erts/emulator/beam/utils.c4
-rw-r--r--erts/emulator/sys/unix/sys.c1
-rw-r--r--erts/emulator/sys/win32/sys.c1
11 files changed, 12 insertions, 2597 deletions
diff --git a/erts/configure.in b/erts/configure.in
index 157163fe0b..d1404580fa 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -201,9 +201,6 @@ AC_ARG_ENABLE(native-libs,
AC_ARG_ENABLE(tsp,
[ --enable-tsp compile tsp app])
-AC_ARG_ENABLE(elib-malloc,
-[ --enable-elib-malloc use elib_malloc instead of normal malloc])
-
AC_ARG_ENABLE(fp-exceptions,
[ --enable-fp-exceptions Use hardware floating point exceptions (default if hipe enabled)],
[ case "$enableval" in
@@ -2999,17 +2996,6 @@ if test "x$HIPE_ENABLED" = "xyes" ; then
fi
#
-# Check if we should use elib_malloc.
-#
-
-if test X${enable_elib_malloc} = Xyes; then
- AC_DEFINE(ENABLE_ELIB_MALLOC,[],[Define to enable use of elib_malloc (a malloc() replacement)])
- AC_DEFINE(ELIB_HEAP_SBRK,[],[Elib sbrk])
- AC_DEFINE(ELIB_ALLOC_IS_CLIB,[],[Use elib malloc as clib])
- AC_DEFINE(ELIB_SORTED_BLOCKS,[],[Define to enable the use of sorted blocks when using elib_malloc])
-fi
-
-#
# Check for working poll().
#
AC_MSG_CHECKING([for working poll()])
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 54a0a80536..add4e961d5 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -5364,7 +5364,7 @@ true</pre>
<p>Returns <c>{Allocator, Version, Features, Settings}.</c></p>
<p>Types:</p>
<list type="bulleted">
- <item><c>Allocator = undefined | elib_malloc | glibc</c></item>
+ <item><c>Allocator = undefined | glibc</c></item>
<item><c>Version = [int()]</c></item>
<item><c>Features = [atom()]</c></item>
<item><c>Settings = [{Subsystem, [{Parameter, Value}]}]</c></item>
@@ -5379,7 +5379,7 @@ true</pre>
implementation used. If <c>Allocator</c> equals
<c>undefined</c>, the <c>malloc()</c> implementation
used could not be identified. Currently
- <c>elib_malloc</c> and <c>glibc</c> can be identified.</p>
+ <c>glibc</c> can be identified.</p>
</item>
<item>
<p><c>Version</c> is a list of integers (but not a
@@ -5606,52 +5606,9 @@ true</pre>
</item>
<tag><c>elib_malloc</c></tag>
<item>
- <p>If the emulator uses the <c>elib_malloc</c> memory
- allocator, a list of two-element tuples containing status
- information is returned; otherwise, <c>false</c> is
- returned. The list currently contains the following
- two-element tuples (all sizes are presented in bytes):</p>
- <taglist>
- <tag><c>{heap_size, Size}</c></tag>
- <item>
- <p>Where <c>Size</c> is the current heap size.</p>
- </item>
- <tag><c>{max_alloced_size, Size}</c></tag>
- <item>
- <p>Where <c>Size</c> is the maximum amount of memory
- allocated on the heap since the emulator started.</p>
- </item>
- <tag><c>{alloced_size, Size}</c></tag>
- <item>
- <p>Where <c>Size</c> is the current amount of memory
- allocated on the heap.</p>
- </item>
- <tag><c>{free_size, Size}</c></tag>
- <item>
- <p>Where <c>Size</c> is the current amount of free
- memory on the heap.</p>
- </item>
- <tag><c>{no_alloced_blocks, No}</c></tag>
- <item>
- <p>Where <c>No</c> is the current number of allocated
- blocks on the heap.</p>
- </item>
- <tag><c>{no_free_blocks, No}</c></tag>
- <item>
- <p>Where <c>No</c> is the current number of free blocks
- on the heap.</p>
- </item>
- <tag><c>{smallest_alloced_block, Size}</c></tag>
- <item>
- <p>Where <c>Size</c> is the size of the smallest
- allocated block on the heap.</p>
- </item>
- <tag><c>{largest_free_block, Size}</c></tag>
- <item>
- <p>Where <c>Size</c> is the size of the largest free
- block on the heap.</p>
- </item>
- </taglist>
+ <p>This option will be removed in a future release.
+ The return value will always be <c>false</c> since
+ the elib_malloc allocator has been removed.</p>
</item>
<tag><c>fullsweep_after</c></tag>
<item>
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index 1ea43e38da..ed0d1b3fa6 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -293,8 +293,6 @@ endif
DEPLIBS += $(ERL_TOP)/erts/emulator/pcre/obj/$(TARGET)/$(TYPE)/$(LIB_PREFIX)epcre$(LIB_SUFFIX)
-ELIB_FLAGS = -DENABLE_ELIB_MALLOC -DELIB_ALLOC_IS_CLIB -DELIB_HEAP_SBRK
-
PERFCTR_PATH=@PERFCTR_PATH@
USE_PERFCTR=@USE_PERFCTR@
ifdef PERFCTR_PATH
@@ -653,9 +651,6 @@ $(BINDIR)/$(CS_EXECUTABLE): $(CS_SRC)
$(CS_PURIFY) $(CC) $(CS_LDFLAGS) -o $(BINDIR)/$(CS_EXECUTABLE) \
$(CS_CFLAGS) $(COMMON_INCLUDES) $(CS_SRC) $(CS_LIBS)
-$(OBJDIR)/%.elib.o: beam/%.c
- $(CC) $(ELIB_FLAGS) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
-
$(OBJDIR)/%.kp.o: sys/common/%.c
$(CC) -DERTS_KERNEL_POLL_VERSION $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
@@ -762,15 +757,13 @@ OS_OBJS = \
$(OBJDIR)/sys_time.o \
$(OBJDIR)/sys_interrupt.o \
$(OBJDIR)/sys_env.o \
- $(OBJDIR)/dosmap.o \
- $(OBJDIR)/elib_malloc.o
+ $(OBJDIR)/dosmap.o
else
OS_OBJS = \
$(OBJDIR)/sys.o \
$(OBJDIR)/driver_tab.o \
$(OBJDIR)/unix_efile.o \
$(OBJDIR)/gzio.o \
- $(OBJDIR)/elib_malloc.o \
$(OBJDIR)/elib_memmove.o
ifeq ($(findstring vxworks,$(TARGET)),vxworks)
@@ -834,16 +827,6 @@ BASE_OBJS = $(RUN_OBJS) $(EMU_OBJS) $(OS_OBJS) $(EXTRA_BASE_OBJS)
OBJS = $(BASE_OBJS) $(DRV_OBJS)
-ELIB_C_FILES = beam/elib_malloc.c \
- beam/elib_memmove.c \
- beam/erl_bif_info.c \
- beam/utils.c \
- beam/erl_alloc.c
-
-MOD_OBJS_ELIB = $(patsubst %.c,$(OBJDIR)/%.o,$(notdir $(ELIB_C_FILES)))
-OBJS_ELIB = $(patsubst %.o,%.elib.o,$(MOD_OBJS_ELIB)) \
- $(filter-out $(MOD_OBJS_ELIB),$(OBJS))
-
########################################
# HiPE section
@@ -935,10 +918,6 @@ $(BINDIR)/$(EMULATOR_EXECUTABLE): $(INIT_OBJS) $(OBJS) $(DEPLIBS)
$(PURIFY) $(LD) -o $(BINDIR)/$(EMULATOR_EXECUTABLE) \
$(HIPEBEAMLDFLAGS) $(LDFLAGS) $(DEXPORT) $(INIT_OBJS) $(OBJS) $(LIBS)
-$(BINDIR)/$(EMULATOR_EXECUTABLE_ELIB): $(INIT_OBJS) $(OBJS_ELIB) $(DEPLIBS)
- $(PURIFY) $(LD) -o $(BINDIR)/$(EMULATOR_EXECUTABLE_ELIB) \
- $(LDFLAGS) $(DEXPORT) $(INIT_OBJS) $(OBJS_ELIB) $(LIBS)
-
endif
#
@@ -1033,7 +1012,7 @@ depend:
$(DEP_CC) $(DEP_FLAGS) $(TARGET_SRC) \
| $(SED_DEPEND) >> $(TARGET)/depend.mk
ifneq ($(TARGET),win32)
- $(DEP_CC) $(DEP_FLAGS) $(ELIB_FLAGS) $(ELIB_C_FILES) \
+ $(DEP_CC) $(DEP_FLAGS) $(ELIB_C_FILES) \
| $(SED_ELIB_DEPEND) >> $(TARGET)/depend.mk
endif
ifdef HIPE_ENABLED
diff --git a/erts/emulator/beam/elib_malloc.c b/erts/emulator/beam/elib_malloc.c
deleted file mode 100644
index b18c48d8d6..0000000000
--- a/erts/emulator/beam/elib_malloc.c
+++ /dev/null
@@ -1,2334 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 1997-2009. All Rights Reserved.
- *
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * %CopyrightEnd%
- */
-
-/*
-** Description: Faster malloc().
-*/
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include "sys.h"
-
-#ifdef ENABLE_ELIB_MALLOC
-
-#undef THREAD_SAFE_ELIB_MALLOC
-#ifdef USE_THREADS
-#define THREAD_SAFE_ELIB_MALLOC 1
-#else
-#define THREAD_SAFE_ELIB_MALLOC 0
-#endif
-
-#include "erl_driver.h"
-#include "erl_threads.h"
-#include "elib_stat.h"
-#include <stdio.h>
-#include <stdlib.h>
-
-/* To avoid clobbering of names becaure of reclaim on VxWorks,
- we undefine all possible malloc, calloc etc. */
-#undef malloc
-#undef calloc
-#undef free
-#undef realloc
-
-#define ELIB_INLINE /* inline all possible functions */
-
-#ifndef ELIB_ALIGN
-#define ELIB_ALIGN sizeof(double)
-#endif
-
-#ifndef ELIB_HEAP_SIZE
-#define ELIB_HEAP_SIZE (64*1024) /* Default 64K */
-#endif
-
-#ifndef ELIB_HEAP_INCREAMENT
-#define ELIB_HEAP_INCREAMENT (32*1024) /* Default 32K */
-#endif
-
-#ifndef ELIB_FAILURE
-#define ELIB_FAILURE abort()
-#endif
-
-#undef ASSERT
-#ifdef DEBUG
-#define ASSERT(B) \
- ((void) ((B) ? 1 : (fprintf(stderr, "%s:%d: Assertion failed: %s\n", \
- __FILE__, __LINE__, #B), abort(), 0)))
-#else
-#define ASSERT(B) ((void) 1)
-#endif
-
-#ifndef USE_RECURSIVE_MALLOC_MUTEX
-#define USE_RECURSIVE_MALLOC_MUTEX 0
-#endif
-
-#if USE_RECURSIVE_MALLOC_MUTEX
-static erts_mtx_t malloc_mutex = ERTS_REC_MTX_INITER;
-#else /* #if USE_RECURSIVE_MALLOC_MUTEX */
-static erts_mtx_t malloc_mutex = ERTS_MTX_INITER;
-#if THREAD_SAFE_ELIB_MALLOC
-static erts_cnd_t malloc_cond = ERTS_CND_INITER;
-#endif
-#endif /* #if USE_RECURSIVE_MALLOC_MUTEX */
-
-typedef unsigned long EWord; /* Assume 32-bit in this implementation */
-typedef unsigned short EHalfWord; /* Assume 16-bit in this implementation */
-typedef unsigned char EByte; /* Assume 8-bit byte */
-
-
-#define elib_printf fprintf
-#define elib_putc fputc
-
-
-#if defined(__STDC__) || defined(__WIN32__)
-#define CONCAT(x,y) x##y
-#else
-#define CONCAT(x,y) x/**/y
-#endif
-
-
-#ifdef ELIB_DEBUG
-#define ELIB_PREFIX(fun, args) CONCAT(elib__,fun) args
-#else
-#define ELIB_PREFIX(fun, args) CONCAT(elib_,fun) args
-#endif
-
-#if defined(__STDC__)
-void *ELIB_PREFIX(malloc, (size_t));
-void *ELIB_PREFIX(calloc, (size_t, size_t));
-void ELIB_PREFIX(cfree, (EWord *));
-void ELIB_PREFIX(free, (EWord *));
-void *ELIB_PREFIX(realloc, (EWord *, size_t));
-void* ELIB_PREFIX(memresize, (EWord *, int));
-void* ELIB_PREFIX(memalign, (int, int));
-void* ELIB_PREFIX(valloc, (int));
-void* ELIB_PREFIX(pvalloc, (int));
-int ELIB_PREFIX(memsize, (EWord *));
-/* Extern interfaces used by VxWorks */
-size_t elib_sizeof(void *);
-void elib_init(EWord *, EWord);
-void elib_force_init(EWord *, EWord);
-#endif
-
-#if defined(__STDC__)
-/* define prototypes for missing */
-void* memalign(size_t a, size_t s);
-void* pvalloc(size_t nb);
-void* memresize(void *p, int nb);
-int memsize(void *p);
-#endif
-
-/* bytes to pages */
-#define PAGES(x) (((x)+page_size-1) / page_size)
-#define PAGE_ALIGN(p) ((char*)((((EWord)(p))+page_size-1)&~(page_size-1)))
-
-/* bytes to words */
-#define WORDS(x) (((x)+sizeof(EWord)-1) / sizeof(EWord))
-
-/* Align an address */
-#define ALIGN(p) ((EWord*)((((EWord)(p)+ELIB_ALIGN-1)&~(ELIB_ALIGN-1))))
-
-/* Calculate the size needed to keep alignment */
-
-#define ALIGN_BSZ(nb) ((nb+sizeof(EWord)+ELIB_ALIGN-1) & ~(ELIB_ALIGN-1))
-
-#define ALIGN_WSZ(nb) WORDS(ALIGN_BSZ(nb))
-
-#define ALIGN_SIZE(nb) (ALIGN_WSZ(nb) - 1)
-
-
-/* PARAMETERS */
-
-#if defined(ELIB_HEAP_SBRK)
-
-#undef PAGE_SIZE
-
-/* Get the system page size (NEED MORE DEFINES HERE) */
-#ifdef _SC_PAGESIZE
-#define PAGE_SIZE sysconf(_SC_PAGESIZE)
-#elif defined(_MSC_VER)
-# ifdef _M_ALPHA
-# define PAGE_SIZE 0x2000
-# else
-# define PAGE_SIZE 0x1000
-# endif
-#else
-#define PAGE_SIZE getpagesize()
-#endif
-
-#define ELIB_EXPAND(need) expand_sbrk(need)
-static FUNCTION(int, expand_sbrk, (EWord));
-
-#elif defined(ELIB_HEAP_FIXED)
-
-#define PAGE_SIZE 1024
-#define ELIB_EXPAND(need) -1
-static EWord fix_heap[WORDS(ELIB_HEAP_SIZE)];
-
-#elif defined(ELIB_HEAP_USER)
-
-#define PAGE_SIZE 1024
-#define ELIB_EXPAND(need) -1
-
-#else
-
-#error "ELIB HEAP TYPE NOT SET"
-
-#endif
-
-
-#define STAT_ALLOCED_BLOCK(SZ) \
-do { \
- tot_allocated += (SZ); \
- if (max_allocated < tot_allocated) \
- max_allocated = tot_allocated; \
-} while (0)
-
-#define STAT_FREED_BLOCK(SZ) \
-do { \
- tot_allocated -= (SZ); \
-} while (0)
-
-static int max_allocated = 0;
-static int tot_allocated = 0;
-static EWord* eheap; /* Align heap start */
-static EWord* eheap_top; /* Point to end of heap */
-EWord page_size = 0; /* Set by elib_init */
-
-#if defined(ELIB_DEBUG) || defined(DEBUG)
-#define ALIGN_CHECK(a, p) \
- do { \
- if ((EWord)(p) & (a-1)) { \
- elib_printf(stderr, \
- "RUNTIME ERROR: bad alignment (0x%lx:%d:%d)\n", \
- (unsigned long) (p), (int) a, __LINE__); \
- ELIB_FAILURE; \
- } \
- } while(0)
-#define ELIB_ALIGN_CHECK(p) ALIGN_CHECK(ELIB_ALIGN, p)
-#else
-#define ALIGN_CHECK(a, p)
-#define ELIB_ALIGN_CHECK(p)
-#endif
-
-#define DYNAMIC 32
-
-/*
-** Free block layout
-** 1 1 30
-** +--------------------------+
-** |F|P| Size |
-** +--------------------------+
-**
-** Where F is the free bit
-** P is the free above bit
-** Size is messured in words and does not include the hdr word
-**
-** If block is on the free list the size is also stored last in the block.
-**
-*/
-typedef struct _free_block FreeBlock;
-struct _free_block {
- EWord hdr;
- Uint flags;
- FreeBlock* parent;
- FreeBlock* left;
- FreeBlock* right;
- EWord v[1];
-};
-
-typedef struct _allocated_block {
- EWord hdr;
- EWord v[5];
-} AllocatedBlock;
-
-
-/*
- * Interface to tree routines.
- */
-typedef Uint Block_t;
-
-static Block_t* get_free_block(Uint);
-static void link_free_block(Block_t *);
-static void unlink_free_block(Block_t *del);
-
-#define FREE_BIT 0x80000000
-#define FREE_ABOVE_BIT 0x40000000
-#define SIZE_MASK 0x3fffffff /* 2^30 words = 2^32 bytes */
-
-/* Work on both FreeBlock and AllocatedBlock */
-#define SIZEOF(p) ((p)->hdr & SIZE_MASK)
-#define IS_FREE(p) (((p)->hdr & FREE_BIT) != 0)
-#define IS_FREE_ABOVE(p) (((p)->hdr & FREE_ABOVE_BIT) != 0)
-
-/* Given that we have a free block above find its size */
-#define SIZEOF_ABOVE(p) *(((EWord*) (p)) - 1)
-
-#define MIN_BLOCK_SIZE (sizeof(FreeBlock)/sizeof(EWord))
-#define MIN_WORD_SIZE (MIN_BLOCK_SIZE-1)
-#define MIN_BYTE_SIZE (sizeof(FreeBlock)-sizeof(EWord))
-
-#define MIN_ALIGN_SIZE ALIGN_SIZE(MIN_BYTE_SIZE)
-
-
-static AllocatedBlock* heap_head = 0;
-static AllocatedBlock* heap_tail = 0;
-static EWord eheap_size = 0;
-
-static int heap_locked;
-
-static int elib_need_init = 1;
-#if THREAD_SAFE_ELIB_MALLOC
-static int elib_is_initing = 0;
-#endif
-
-typedef FreeBlock RBTree_t;
-
-static RBTree_t* root = NULL;
-
-
-static FUNCTION(void, deallocate, (AllocatedBlock*, int));
-
-/*
- * Unlink a free block
- */
-
-#define mark_allocated(p, szp) do { \
- (p)->hdr = ((p)->hdr & FREE_ABOVE_BIT) | (szp); \
- (p)->v[szp] &= ~FREE_ABOVE_BIT; \
- } while(0)
-
-#define mark_free(p, szp) do { \
- (p)->hdr = FREE_BIT | (szp); \
- ((FreeBlock *)p)->v[szp-sizeof(FreeBlock)/sizeof(EWord)+1] = (szp); \
- } while(0)
-
-#if 0
-/* Help macros to log2 */
-#define LOG_1(x) (((x) > 1) ? 1 : 0)
-#define LOG_2(x) (((x) > 3) ? 2+LOG_1((x) >> 2) : LOG_1(x))
-#define LOG_4(x) (((x) > 15) ? 4+LOG_2((x) >> 4) : LOG_2(x))
-#define LOG_8(x) (((x) > 255) ? 8+LOG_4((x)>>8) : LOG_4(x))
-#define LOG_16(x) (((x) > 65535) ? 16+LOG_8((x)>>16) : LOG_8(x))
-
-#define log2(x) LOG_16(x)
-#endif
-
-/*
- * Split a block to be allocated.
- * Mark block as ALLOCATED and clear
- * FREE_ABOVE_BIT on next block
- *
- * nw is SIZE aligned and szp is SIZE aligned + 1
- */
-static void
-split_block(FreeBlock* p, EWord nw, EWord szp)
-{
- EWord szq;
- FreeBlock* q;
-
- szq = szp - nw;
- /* Preserve FREE_ABOVE bit in p->hdr !!! */
-
- if (szq >= MIN_ALIGN_SIZE+1) {
- szq--;
- p->hdr = (p->hdr & FREE_ABOVE_BIT) | nw;
-
- q = (FreeBlock*) (((EWord*) p) + nw + 1);
- mark_free(q, szq);
- link_free_block((Block_t *) q);
-
- q = (FreeBlock*) (((EWord*) q) + szq + 1);
- q->hdr |= FREE_ABOVE_BIT;
- }
- else {
- mark_allocated((AllocatedBlock*)p, szp);
- }
-}
-
-/*
- * Find a free block
- */
-static FreeBlock*
-alloc_block(EWord nw)
-{
- for (;;) {
- FreeBlock* p = (FreeBlock *) get_free_block(nw);
-
- if (p != NULL) {
- return p;
- } else if (ELIB_EXPAND(nw+MIN_WORD_SIZE)) {
- return 0;
- }
- }
-}
-
-
-size_t elib_sizeof(void *p)
-{
- AllocatedBlock* pp;
-
- if (p != 0) {
- pp = (AllocatedBlock*) (((char *)p)-1);
- return SIZEOF(pp);
- }
- return 0;
-}
-
-static void locked_elib_init(EWord*, EWord);
-static void init_elib_malloc(EWord*, EWord);
-
-/*
-** Initialize the elib
-** The addr and sz is only used when compiled with EXPAND_ADDR
-*/
-/* Not static, this is used by VxWorks */
-void elib_init(EWord* addr, EWord sz)
-{
- if (!elib_need_init)
- return;
- erts_mtx_lock(&malloc_mutex);
- locked_elib_init(addr, sz);
- erts_mtx_unlock(&malloc_mutex);
-}
-
-static void locked_elib_init(EWord* addr, EWord sz)
-{
- if (!elib_need_init)
- return;
-
-#if THREAD_SAFE_ELIB_MALLOC
-
-#if !USE_RECURSIVE_MALLOC_MUTEX
- {
- static erts_tid_t initer_tid;
-
- if(elib_is_initing) {
-
- if(erts_equal_tids(initer_tid, erts_thr_self()))
- return;
-
- /* Wait until initializing thread is done with initialization */
-
- while(elib_need_init)
- erts_cnd_wait(&malloc_cond, &malloc_mutex);
-
- return;
- }
- else {
- initer_tid = erts_thr_self();
- elib_is_initing = 1;
- }
- }
-#else
- if(elib_is_initing)
- return;
- elib_is_initing = 1;
-#endif
-
-#endif /* #if THREAD_SAFE_ELIB_MALLOC */
-
- /* Do the actual initialization of the malloc implementation */
- init_elib_malloc(addr, sz);
-
-#if THREAD_SAFE_ELIB_MALLOC
-
-#if !USE_RECURSIVE_MALLOC_MUTEX
- erts_mtx_unlock(&malloc_mutex);
-#endif
-
- /* Recursive calls to malloc are allowed here... */
- erts_mtx_set_forksafe(&malloc_mutex);
-
-#if !USE_RECURSIVE_MALLOC_MUTEX
- erts_mtx_lock(&malloc_mutex);
- elib_is_initing = 0;
-#endif
-
-#endif /* #if THREAD_SAFE_ELIB_MALLOC */
-
- elib_need_init = 0;
-
-#if THREAD_SAFE_ELIB_MALLOC && !USE_RECURSIVE_MALLOC_MUTEX
- erts_cnd_broadcast(&malloc_cond);
-#endif
-
-}
-
-static void init_elib_malloc(EWord* addr, EWord sz)
-{
- int i;
- FreeBlock* freep;
- EWord tmp_sz;
-#ifdef ELIB_HEAP_SBRK
- char* top;
- EWord n;
-#endif
-
- max_allocated = 0;
- tot_allocated = 0;
- root = NULL;
-
- /* Get the page size (may involve system call!!!) */
- page_size = PAGE_SIZE;
-
-#if defined(ELIB_HEAP_SBRK)
- sz = PAGES(ELIB_HEAP_SIZE)*page_size;
-
- if ((top = (char*) sbrk(0)) == (char*)-1) {
- elib_printf(stderr, "could not initialize elib, sbrk(0)");
- ELIB_FAILURE;
- }
- n = PAGE_ALIGN(top) - top;
- if ((top = (char*) sbrk(n)) == (char*)-1) {
- elib_printf(stderr, "could not initialize elib, sbrk(n)");
- ELIB_FAILURE;
- }
- if ((eheap = (EWord*) sbrk(sz)) == (EWord*)-1) {
- elib_printf(stderr, "could not initialize elib, sbrk(SIZE)");
- ELIB_FAILURE;
- }
- sz = WORDS(ELIB_HEAP_SIZE);
-#elif defined(ELIB_HEAP_FIXED)
- eheap = fix_heap;
- sz = WORDS(ELIB_HEAP_SIZE);
-#elif defined(ELIB_HEAP_USER)
- eheap = addr;
- sz = WORDS(sz);
-#else
- return -1;
-#endif
- eheap_size = 0;
-
- /* Make sure that the first word of the heap_head is aligned */
- addr = ALIGN(eheap+1);
- sz -= ((addr - 1) - eheap); /* Subtract unusable size */
- eheap_top = eheap = addr - 1; /* Set new aligned heap start */
-
- eheap_top[sz-1] = 0; /* Heap stop mark */
-
- addr = eheap;
- heap_head = (AllocatedBlock*) addr;
- heap_head->hdr = MIN_ALIGN_SIZE;
- for (i = 0; i < MIN_ALIGN_SIZE; i++)
- heap_head->v[i] = 0;
-
- addr += (MIN_ALIGN_SIZE+1);
- freep = (FreeBlock*) addr;
- tmp_sz = sz - (((MIN_ALIGN_SIZE+1) + MIN_BLOCK_SIZE) + 1 + 1);
- mark_free(freep, tmp_sz);
- link_free_block((Block_t *) freep);
-
- /* No need to align heap tail */
- heap_tail = (AllocatedBlock*) &eheap_top[sz-MIN_BLOCK_SIZE-1];
- heap_tail->hdr = FREE_ABOVE_BIT | MIN_WORD_SIZE;
- heap_tail->v[0] = 0;
- heap_tail->v[1] = 0;
- heap_tail->v[2] = 0;
-
- eheap_top += sz;
- eheap_size += sz;
-
- heap_locked = 0;
-}
-
-#ifdef ELIB_HEAP_USER
-void elib_force_init(EWord* addr, EWord sz)
-{
- elib_need_init = 1;
- elib_init(addr,sz);
-}
-#endif
-
-#ifdef ELIB_HEAP_SBRK
-
-/*
-** need in number of words (should include head and tail words)
-*/
-static int expand_sbrk(EWord sz)
-{
- EWord* p;
- EWord bytes = sz * sizeof(EWord);
- EWord size;
- AllocatedBlock* tail;
-
- if (bytes < ELIB_HEAP_SIZE)
- size = PAGES(ELIB_HEAP_INCREAMENT)*page_size;
- else
- size = PAGES(bytes)*page_size;
-
- if ((p = (EWord*) sbrk(size)) == ((EWord*) -1))
- return -1;
-
- if (p != eheap_top) {
- elib_printf(stderr, "panic: sbrk moved\n");
- ELIB_FAILURE;
- }
-
- sz = WORDS(size);
-
- /* Set new endof heap marker and a new heap tail */
- eheap_top[sz-1] = 0;
-
- tail = (AllocatedBlock*) &eheap_top[sz-MIN_BLOCK_SIZE-1];
- tail->hdr = FREE_ABOVE_BIT | MIN_WORD_SIZE;
- tail->v[0] = 0;
- tail->v[1] = 0;
- tail->v[2] = 0;
-
- /* Patch old tail with new appended size */
- heap_tail->hdr = (heap_tail->hdr & FREE_ABOVE_BIT) |
- (MIN_WORD_SIZE+1+(sz-MIN_BLOCK_SIZE-1));
- deallocate(heap_tail, 0);
-
- heap_tail = tail;
-
- eheap_size += sz;
- eheap_top += sz;
-
- return 0;
-}
-
-#endif /* ELIB_HEAP_SBRK */
-
-
-/*
-** Scan heap and check for corrupted heap
-*/
-int elib_check_heap(void)
-{
- AllocatedBlock* p = heap_head;
- EWord sz;
-
- if (heap_locked) {
- elib_printf(stderr, "heap is locked no info avaiable\n");
- return 0;
- }
-
- while((sz = SIZEOF(p)) != 0) {
- if (IS_FREE(p)) {
- if (p->v[sz-1] != sz) {
- elib_printf(stderr, "panic: heap corrupted\r\n");
- ELIB_FAILURE;
- }
- p = (AllocatedBlock*) (p->v + sz);
- if (!IS_FREE_ABOVE(p)) {
- elib_printf(stderr, "panic: heap corrupted\r\n");
- ELIB_FAILURE;
- }
- }
- else
- p = (AllocatedBlock*) (p->v + sz);
- }
- return 1;
-}
-
-/*
-** Load the byte vector pointed to by v of length vsz
-** with a heap image
-** The scale is defined by vsz and the current heap size
-** free = 0, full = 255
-**
-**
-*/
-int elib_heap_map(EByte* v, int vsz)
-{
- AllocatedBlock* p = heap_head;
- EWord sz;
- int gsz = eheap_size / vsz; /* The granuality used */
- int fsz = 0;
- int usz = 0;
-
- if (gsz == 0)
- return -1; /* too good reolution */
-
- while((sz = SIZEOF(p)) != 0) {
- if (IS_FREE(p)) {
- fsz += sz;
- if ((fsz + usz) > gsz) {
- *v++ = (255*usz)/gsz;
- fsz -= (gsz - usz);
- usz = 0;
- while(fsz >= gsz) {
- *v++ = 0;
- fsz -= gsz;
- }
- }
- }
- else {
- usz += sz;
- if ((fsz + usz) > gsz) {
- *v++ = 255 - (255*fsz)/gsz;
- usz -= (gsz - fsz);
- fsz = 0;
- while(usz >= gsz) {
- *v++ = 255;
- usz -= gsz;
- }
- }
- }
- p = (AllocatedBlock*) (p->v + sz);
- }
- return 0;
-}
-
-/*
-** Generate a histogram of free/allocated blocks
-** Count granuality of 10 gives
-** (0-10],(10-100],(100-1000],(1000-10000] ...
-** (0-2], (2-4], (4-8], (8-16], ....
-*/
-static int i_logb(EWord size, int base)
-{
- int lg = 0;
- while(size >= base) {
- size /= base;
- lg++;
- }
- return lg;
-}
-
-int elib_histo(EWord* vf, EWord* va, int vsz, int base)
-{
- AllocatedBlock* p = heap_head;
- EWord sz;
- int i;
- int linear;
-
- if ((vsz <= 1) || (vf == 0 && va == 0))
- return -1;
-
- if (base < 0) {
- linear = 1;
- base = -base;
- }
- else
- linear = 0;
-
- if (base <= 1)
- return -1;
-
- if (vf != 0) {
- for (i = 0; i < vsz; i++)
- vf[i] = 0;
- }
- if (va != 0) {
- for (i = 0; i < vsz; i++)
- va[i] = 0;
- }
-
- while((sz = SIZEOF(p)) != 0) {
- if (IS_FREE(p)) {
- if (vf != 0) {
- int val;
- if (linear)
- val = sz / base;
- else
- val = i_logb(sz, base);
- if (val >= vsz)
- vf[vsz-1]++;
- else
- vf[val]++;
- }
- }
- else {
- if (va != 0) {
- int val;
- if (linear)
- val = sz / base;
- else
- val = i_logb(sz, base);
- if (val >= vsz)
- va[vsz-1]++;
- else
- va[val]++;
- }
- }
- p = (AllocatedBlock*) (p->v + sz);
- }
- return 0;
-}
-
-/*
-** Fill the info structure with actual values
-** Total
-** Allocated
-** Free
-** maxMaxFree
-*/
-void elib_stat(struct elib_stat* info)
-{
- EWord blks = 0;
- EWord sz_free = 0;
- EWord sz_alloc = 0;
- EWord sz_max_free = 0;
- EWord sz_min_used = 0x7fffffff;
- EWord sz;
- EWord num_free = 0;
- AllocatedBlock* p = heap_head;
-
- info->mem_total = eheap_size;
-
- p = (AllocatedBlock*) (p->v + SIZEOF(p));
-
- while((sz = SIZEOF(p)) != 0) {
- blks++;
- if (IS_FREE(p)) {
- if (sz > sz_max_free)
- sz_max_free = sz;
- sz_free += sz;
- ++num_free;
- }
- else {
- if (sz < sz_min_used)
- sz_min_used = sz;
- sz_alloc += sz;
- }
- p = (AllocatedBlock*) (p->v + sz);
- }
- info->mem_blocks = blks;
- info->free_blocks = num_free;
- info->mem_alloc = sz_alloc;
- info->mem_free = sz_free;
- info->min_used = sz_min_used;
- info->max_free = sz_max_free;
- info->mem_max_alloc = max_allocated;
- ASSERT(sz_alloc == tot_allocated);
-}
-
-/*
-** Dump the heap
-*/
-void elib_heap_dump(char* label)
-{
- AllocatedBlock* p = heap_head;
- EWord sz;
-
- elib_printf(stderr, "HEAP DUMP (%s)\n", label);
- if (!elib_check_heap())
- return;
-
- while((sz = SIZEOF(p)) != 0) {
- if (IS_FREE(p)) {
- elib_printf(stderr, "%p: FREE, size = %d\n", p, (int) sz);
- }
- else {
- elib_printf(stderr, "%p: USED, size = %d %s\n", p, (int) sz,
- IS_FREE_ABOVE(p)?"(FREE ABOVE)":"");
- }
- p = (AllocatedBlock*) (p->v + sz);
- }
-}
-
-/*
-** Scan heaps and count:
-** free_size, allocated_size, max_free_block
-*/
-void elib_statistics(void* to)
-{
- struct elib_stat info;
- EWord frag;
-
- if (!elib_check_heap())
- return;
-
- elib_stat(&info);
-
- frag = 1000 - ((1000 * info.max_free) / info.mem_free);
-
- elib_printf(to, "Heap Statistics: total(%d), blocks(%d), frag(%d.%d%%)\n",
- info.mem_total, info.mem_blocks,
- (int) frag/10, (int) frag % 10);
-
- elib_printf(to, " allocated(%d), free(%d), "
- "free_blocks(%d)\n",
- info.mem_alloc, info.mem_free,info.free_blocks);
- elib_printf(to, " max_free(%d), min_used(%d)\n",
- info.max_free, info.min_used);
-}
-
-/*
-** Allocate a least nb bytes with alignment a
-** Algorithm:
-** 1) Try locate a block which match exacly among the by direct index.
-** 2) Try using a fix block of greater size
-** 3) Try locate a block by searching in lists where block sizes
-** X may vary between 2^i < X <= 2^(i+1)
-**
-** Reset memory to zero if clear is true
-*/
-static AllocatedBlock* allocate(EWord nb, EWord a, int clear)
-{
- FreeBlock* p;
- EWord nw;
-
- if (a == ELIB_ALIGN) {
- /*
- * Common case: Called by malloc(), realloc(), calloc().
- */
- nw = nb < MIN_BYTE_SIZE ? MIN_ALIGN_SIZE : ALIGN_SIZE(nb);
-
- if ((p = alloc_block(nw)) == 0)
- return NULL;
- } else {
- /*
- * Special case: Called by memalign().
- */
- EWord asz, szp, szq, tmpsz;
- FreeBlock *q;
-
- if ((p = alloc_block((1+MIN_ALIGN_SIZE)*sizeof(EWord)+a-1+nb)) == 0)
- return NULL;
-
- asz = a - ((EWord) ((AllocatedBlock *)p)->v) % a;
-
- if (asz != a) {
- /* Enforce the alignment requirement by cutting of a free
- block at the beginning of the block. */
-
- if (asz < (1+MIN_ALIGN_SIZE)*sizeof(EWord) && !IS_FREE_ABOVE(p)) {
- /* Not enough room to cut of a free block;
- increase align size */
- asz += (((1+MIN_ALIGN_SIZE)*sizeof(EWord) + a - 1)/a)*a;
- }
-
- szq = ALIGN_SIZE(asz - sizeof(EWord));
- szp = SIZEOF(p) - szq - 1;
-
- q = p;
- p = (FreeBlock*) (((EWord*) q) + szq + 1);
- p->hdr = FREE_ABOVE_BIT | FREE_BIT | szp;
-
- if (IS_FREE_ABOVE(q)) { /* This should not be possible I think,
- but just in case... */
- tmpsz = SIZEOF_ABOVE(q) + 1;
- szq += tmpsz;
- q = (FreeBlock*) (((EWord*) q) - tmpsz);
- unlink_free_block((Block_t *) q);
- q->hdr = (q->hdr & FREE_ABOVE_BIT) | FREE_BIT | szq;
- }
- mark_free(q, szq);
- link_free_block((Block_t *) q);
-
- } /* else already had the correct alignment */
-
- nw = nb < MIN_BYTE_SIZE ? MIN_ALIGN_SIZE : ALIGN_SIZE(nb);
- }
-
- split_block(p, nw, SIZEOF(p));
-
- STAT_ALLOCED_BLOCK(SIZEOF(p));
-
- if (clear) {
- EWord* pp = ((AllocatedBlock*)p)->v;
-
- while(nw--)
- *pp++ = 0;
- }
-
- return (AllocatedBlock*) p;
-}
-
-
-/*
-** Deallocate memory pointed to by p
-** 1. Merge with block above if this block is free
-** 2. Merge with block below if this block is free
-** Link the block to the correct free list
-**
-** p points to the block header!
-**
-*/
-static void deallocate(AllocatedBlock* p, int stat_count)
-{
- FreeBlock* q;
- EWord szq;
- EWord szp;
-
- szp = SIZEOF(p);
-
- if (stat_count)
- STAT_FREED_BLOCK(SIZEOF(p));
-
- if (IS_FREE_ABOVE(p)) {
- szq = SIZEOF_ABOVE(p);
- q = (FreeBlock*) ( ((EWord*) p) - szq - 1);
- unlink_free_block((Block_t *) q);
-
- p = (AllocatedBlock*) q;
- szp += (szq + 1);
- }
- q = (FreeBlock*) (p->v + szp);
- if (IS_FREE(q)) {
- szq = SIZEOF(q);
- unlink_free_block((Block_t *) q);
- szp += (szq + 1);
- }
- else
- q->hdr |= FREE_ABOVE_BIT;
-
- /* The block above p can NEVER be free !!! */
- p->hdr = FREE_BIT | szp;
- p->v[szp-1] = szp;
-
- link_free_block((Block_t *) p);
-}
-
-/*
-** Reallocate memory
-** If preserve is true then data is moved if neccesary
-*/
-static AllocatedBlock* reallocate(AllocatedBlock* p, EWord nb, int preserve)
-{
- EWord szp;
- EWord szq;
- EWord sz;
- EWord nw;
- FreeBlock* q;
-
- if (nb < MIN_BYTE_SIZE)
- nw = MIN_ALIGN_SIZE;
- else
- nw = ALIGN_SIZE(nb);
-
- sz = szp = SIZEOF(p);
-
- STAT_FREED_BLOCK(szp);
-
- /* Merge with block below */
- q = (FreeBlock*) (p->v + szp);
- if (IS_FREE(q)) {
- szq = SIZEOF(q);
- unlink_free_block((Block_t *) q);
- szp += (szq + 1);
- }
-
- if (nw <= szp) {
- split_block((FreeBlock *) p, nw, szp);
- STAT_ALLOCED_BLOCK(SIZEOF(p));
- return p;
- }
- else {
- EWord* dp = p->v;
- AllocatedBlock* npp;
-
- if (IS_FREE_ABOVE(p)) {
- szq = SIZEOF_ABOVE(p);
- if (szq + szp + 1 >= nw) {
- q = (FreeBlock*) (((EWord*) p) - szq - 1);
- unlink_free_block((Block_t * )q);
- szp += (szq + 1);
- p = (AllocatedBlock*) q;
-
- if (preserve) {
- EWord* pp = p->v;
- while(sz--)
- *pp++ = *dp++;
- }
- split_block((FreeBlock *) p, nw, szp);
- STAT_ALLOCED_BLOCK(SIZEOF(p));
- return p;
- }
- }
-
- /*
- * Update p so that allocate() and deallocate() works.
- * (Note that allocate() may call expand_sbrk(), which in
- * in turn calls deallocate().)
- */
-
- p->hdr = (p->hdr & FREE_ABOVE_BIT) | szp;
- p->v[szp] &= ~FREE_ABOVE_BIT;
-
- npp = allocate(nb, ELIB_ALIGN, 0);
- if(npp == NULL)
- return NULL;
- if (preserve) {
- EWord* pp = npp->v;
- while(sz--)
- *pp++ = *dp++;
- }
- deallocate(p, 0);
- return npp;
- }
-}
-
-/*
-** What malloc() and friends should do (and return) when the heap is
-** exhausted. [sverkerw]
-*/
-static void* heap_exhausted(void)
-{
- /* Choose behaviour */
-#if 0
- /* Crash-and-burn --- leave a usable corpse (hopefully) */
- abort();
-#endif
- /* The usual ANSI-compliant behaviour */
- return NULL;
-}
-
-/*
-** Allocate size bytes of memory
-*/
-void* ELIB_PREFIX(malloc, (size_t nb))
-{
- void *res;
- AllocatedBlock* p;
-
- erts_mtx_lock(&malloc_mutex);
- if (elib_need_init)
- locked_elib_init(NULL,(EWord)0);
-
- if (nb == 0)
- res = NULL;
- else if ((p = allocate(nb, ELIB_ALIGN, 0)) != 0) {
- ELIB_ALIGN_CHECK(p->v);
- res = p->v;
- }
- else
- res = heap_exhausted();
-
- erts_mtx_unlock(&malloc_mutex);
-
- return res;
-}
-
-
-void* ELIB_PREFIX(calloc, (size_t nelem, size_t size))
-{
- void *res;
- int nb;
- AllocatedBlock* p;
-
- erts_mtx_lock(&malloc_mutex);
- if (elib_need_init)
- locked_elib_init(NULL,(EWord)0);
-
- if ((nb = nelem * size) == 0)
- res = NULL;
- else if ((p = allocate(nb, ELIB_ALIGN, 1)) != 0) {
- ELIB_ALIGN_CHECK(p->v);
- res = p->v;
- }
- else
- res = heap_exhausted();
-
- erts_mtx_unlock(&malloc_mutex);
-
- return res;
-}
-
-/*
-** Free memory allocated by malloc
-*/
-
-void ELIB_PREFIX(free, (EWord* p))
-{
- erts_mtx_lock(&malloc_mutex);
- if (elib_need_init)
- locked_elib_init(NULL,(EWord)0);
-
- if (p != 0)
- deallocate((AllocatedBlock*)(p-1), 1);
-
- erts_mtx_unlock(&malloc_mutex);
-}
-
-void ELIB_PREFIX(cfree, (EWord* p))
-{
- ELIB_PREFIX(free, (p));
-}
-
-
-/*
-** Realloc the memory allocated in p to nb number of bytes
-**
-*/
-
-void* ELIB_PREFIX(realloc, (EWord* p, size_t nb))
-{
- void *res = NULL;
- AllocatedBlock* pp;
-
- erts_mtx_lock(&malloc_mutex);
- if (elib_need_init)
- locked_elib_init(NULL,(EWord)0);
-
- if (p != 0) {
- pp = (AllocatedBlock*) (p-1);
- if (nb > 0) {
- if ((pp = reallocate(pp, nb, 1)) != 0) {
- ELIB_ALIGN_CHECK(pp->v);
- res = pp->v;
- }
- }
- else
- deallocate(pp, 1);
- }
- else if (nb > 0) {
- if ((pp = allocate(nb, ELIB_ALIGN, 0)) != 0) {
- ELIB_ALIGN_CHECK(pp->v);
- res = pp->v;
- }
- else
- res = heap_exhausted();
- }
-
- erts_mtx_unlock(&malloc_mutex);
-
- return res;
-}
-
-/*
-** Resize the memory area pointed to by p with nb number of bytes
-*/
-void* ELIB_PREFIX(memresize, (EWord* p, int nb))
-{
- void *res = NULL;
- AllocatedBlock* pp;
-
- erts_mtx_lock(&malloc_mutex);
- if (elib_need_init)
- locked_elib_init(NULL,(EWord)0);
-
- if (p != 0) {
- pp = (AllocatedBlock*) (p-1);
- if (nb > 0) {
- if ((pp = reallocate(pp, nb, 0)) != 0) {
- ELIB_ALIGN_CHECK(pp->v);
- res = pp->v;
- }
- }
- else
- deallocate(pp, 1);
- }
- else if (nb > 0) {
- if ((pp = allocate(nb, ELIB_ALIGN, 0)) != 0) {
- ELIB_ALIGN_CHECK(pp->v);
- res = pp->v;
- }
- else
- res = heap_exhausted();
- }
-
- erts_mtx_unlock(&malloc_mutex);
-
- return res;
-}
-
-
-/* Create aligned memory a must be a power of 2 !!! */
-
-void* ELIB_PREFIX(memalign, (int a, int nb))
-{
- void *res;
- AllocatedBlock* p;
-
- erts_mtx_lock(&malloc_mutex);
- if (elib_need_init)
- locked_elib_init(NULL,(EWord)0);
-
- if (nb == 0 || a <= 0)
- res = NULL;
- else if ((p = allocate(nb, a, 0)) != 0) {
- ALIGN_CHECK(a, p->v);
- res = p->v;
- }
- else
- res = heap_exhausted();
-
- erts_mtx_unlock(&malloc_mutex);
-
- return res;
-}
-
-void* ELIB_PREFIX(valloc, (int nb))
-{
- return ELIB_PREFIX(memalign, (page_size, nb));
-}
-
-
-void* ELIB_PREFIX(pvalloc, (int nb))
-{
- return ELIB_PREFIX(memalign, (page_size, PAGES(nb)*page_size));
-}
-/* Return memory size for pointer p in bytes */
-
-int ELIB_PREFIX(memsize, (p))
-EWord* p;
-{
- return SIZEOF((AllocatedBlock*)(p-1))*4;
-}
-
-
-/*
-** --------------------------------------------------------------------------
-** DEBUG LIBRARY
-** --------------------------------------------------------------------------
-*/
-
-#ifdef ELIB_DEBUG
-
-#define IN_HEAP(p) (((p) >= (char*) eheap) && (p) < (char*) eheap_top)
-/*
-** ptr_to_block: return the pointer to heap block pointed into by ptr
-** Returns 0 if not pointing into a block
-*/
-
-static EWord* ptr_to_block(char* ptr)
-{
- AllocatedBlock* p = heap_head;
- EWord sz;
-
- while((sz = SIZEOF(p)) != 0) {
- if ((ptr >= (char*) p->v) && (ptr < (char*)(p->v+sz)))
- return p->v;
- p = (AllocatedBlock*) (p->v + sz);
- }
- return 0;
-}
-
-/*
-** Validate a pointer
-** returns:
-** 0 - if points to start of a block
-** 1 - if points outsize heap
-** -1 - if points inside block
-**
-*/
-static int check_pointer(char* ptr)
-{
- if (IN_HEAP(ptr)) {
- if (ptr_to_block(ptr) == 0)
- return 1;
- return 0;
- }
- return -1;
-}
-
-/*
-** Validate a memory area
-** returns:
-** 0 - if area is included in a block
-** -1 - if area overlap a heap block
-** 1 - if area is outside heap
-*/
-static int check_area(char* ptr, int n)
-{
- if (IN_HEAP(ptr)) {
- if (IN_HEAP(ptr+n-1)) {
- EWord* p1 = ptr_to_block(ptr);
- EWord* p2 = ptr_to_block(ptr+n-1);
-
- if (p1 == p2)
- return (p1 == 0) ? -1 : 0;
- return -1;
- }
- }
- else if (IN_HEAP(ptr+n-1))
- return -1;
- return 1;
-}
-
-/*
-** Check if a block write will overwrite heap block
-*/
-static void check_write(char* ptr, int n, char* file, int line, char* fun)
-{
- if (check_area(ptr, n) == -1) {
- elib_printf(stderr, "RUNTIME ERROR: %s heap overwrite\n", fun);
- elib_printf(stderr, "File: %s Line: %d\n", file, line);
- ELIB_FAILURE;
- }
-}
-
-/*
-** Check if a pointer is an allocated object
-*/
-static void check_allocated_block(char* ptr, char* file, int line, char* fun)
-{
- EWord* q;
-
- if (!IN_HEAP(ptr) || ((q=ptr_to_block(ptr)) == 0) || (ptr != (char*) q)) {
- elib_printf(stderr, "RUNTIME ERROR: %s non heap pointer\n", fun);
- elib_printf(stderr, "File: %s Line: %d\n", file, line);
- ELIB_FAILURE;
- }
-
- if (IS_FREE((AllocatedBlock*)(q-1))) {
- elib_printf(stderr, "RUNTIME ERROR: %s free pointer\n", fun);
- elib_printf(stderr, "File: %s Line: %d\n", file, line);
- ELIB_FAILURE;
- }
-
-}
-
-/*
-** --------------------------------------------------------------------------
-** DEBUG VERSIONS (COMPILED WITH THE ELIB.H)
-** --------------------------------------------------------------------------
-*/
-
-void* elib_dbg_malloc(int n, char* file, int line)
-{
- return elib__malloc(n);
-}
-
-void* elib_dbg_calloc(int n, int s, char* file, int line)
-{
- return elib__calloc(n, s);
-}
-
-void* elib_dbg_realloc(EWord* p, int n, char* file, int line)
-{
- if (p == 0)
- return elib__malloc(n);
- check_allocated_block(p, file, line, "elib_realloc");
- return elib__realloc(p, n);
-}
-
-void elib_dbg_free(EWord* p, char* file, int line)
-{
- if (p == 0)
- return;
- check_allocated_block(p, file, line, "elib_free");
- elib__free(p);
-}
-
-void elib_dbg_cfree(EWord* p, char* file, int line)
-{
- if (p == 0)
- return;
- check_allocated_block(p, file, line, "elib_free");
- elib__cfree(p);
-}
-
-void* elib_dbg_memalign(int a, int n, char* file, int line)
-{
- return elib__memalign(a, n);
-}
-
-void* elib_dbg_valloc(int n, char* file, int line)
-{
- return elib__valloc(n);
-}
-
-void* elib_dbg_pvalloc(int n, char* file, int line)
-{
- return elib__pvalloc(n);
-}
-
-void* elib_dbg_memresize(EWord* p, int n, char* file, int line)
-{
- if (p == 0)
- return elib__malloc(n);
- check_allocated_block(p, file, line, "elib_memresize");
- return elib__memresize(p, n);
-}
-
-int elib_dbg_memsize(void* p, char* file, int line)
-{
- check_allocated_block(p, file, line, "elib_memsize");
- return elib__memsize(p);
-}
-
-/*
-** --------------------------------------------------------------------------
-** LINK TIME FUNCTIONS (NOT COMPILED CALLS)
-** --------------------------------------------------------------------------
-*/
-
-void* elib_malloc(int n)
-{
- return elib_dbg_malloc(n, "", -1);
-}
-
-void* elib_calloc(int n, int s)
-{
- return elib_dbg_calloc(n, s, "", -1);
-}
-
-void* elib_realloc(EWord* p, int n)
-{
- return elib_dbg_realloc(p, n, "", -1);
-}
-
-void elib_free(EWord* p)
-{
- elib_dbg_free(p, "", -1);
-}
-
-void elib_cfree(EWord* p)
-{
- elib_dbg_cfree(p, "", -1);
-}
-
-void* elib_memalign(int a, int n)
-{
- return elib_dbg_memalign(a, n, "", -1);
-}
-
-void* elib_valloc(int n)
-{
- return elib_dbg_valloc(n, "", -1);
-}
-
-void* elib_pvalloc(int n)
-{
- return elib_dbg_pvalloc(n, "", -1);
-}
-
-void* elib_memresize(EWord* p, int n)
-{
- return elib_dbg_memresize(p, n, "", -1);
-}
-
-
-int elib_memsize(EWord* p)
-{
- return elib_dbg_memsize(p, "", -1);
-}
-
-#endif /* ELIB_DEBUG */
-
-/*
-** --------------------------------------------------------------------------
-** Map c library functions to elib
-** --------------------------------------------------------------------------
-*/
-
-#if defined(ELIB_ALLOC_IS_CLIB)
-void* malloc(size_t nb)
-{
- return elib_malloc(nb);
-}
-
-void* calloc(size_t nelem, size_t size)
-{
- return elib_calloc(nelem, size);
-}
-
-
-void free(void *p)
-{
- elib_free(p);
-}
-
-void cfree(void *p)
-{
- elib_cfree(p);
-}
-
-void* realloc(void* p, size_t nb)
-{
- return elib_realloc(p, nb);
-}
-
-
-void* memalign(size_t a, size_t s)
-{
- return elib_memalign(a, s);
-}
-
-void* valloc(size_t nb)
-{
- return elib_valloc(nb);
-}
-
-void* pvalloc(size_t nb)
-{
- return elib_pvalloc(nb);
-}
-
-#if 0
-void* memresize(void* p, int nb)
-{
- return elib_memresize(p, nb);
-}
-
-int memsize(void* p)
-{
- return elib_memsize(p);
-}
-#endif
-#endif /* ELIB_ALLOC_IS_CLIB */
-
-#endif /* ENABLE_ELIB_MALLOC */
-
-void elib_ensure_initialized(void)
-{
-#ifdef ENABLE_ELIB_MALLOC
-#ifndef ELIB_DONT_INITIALIZE
- elib_init(NULL, 0);
-#endif
-#endif
-}
-
-#ifdef ENABLE_ELIB_MALLOC
-/**
- ** A Slightly modified version of the "address order best fit" algorithm
- ** used in erl_bestfit_alloc.c. Comments refer to that implementation.
- **/
-
-/*
- * Description: A combined "address order best fit"/"best fit" allocator
- * based on a Red-Black (binary search) Tree. The search,
- * insert, and delete operations are all O(log n) operations
- * on a Red-Black Tree. In the "address order best fit" case
- * n equals number of free blocks, and in the "best fit" case
- * n equals number of distinct sizes of free blocks. Red-Black
- * Trees are described in "Introduction to Algorithms", by
- * Thomas H. Cormen, Charles E. Leiserson, and
- * Ronald L. Riverest.
- *
- * This module is a callback-module for erl_alloc_util.c
- *
- * Author: Rickard Green
- */
-
-#ifdef DEBUG
-#if 0
-#define HARD_DEBUG
-#endif
-#else
-#undef HARD_DEBUG
-#endif
-
-#define SZ_MASK SIZE_MASK
-#define FLG_MASK (~(SZ_MASK))
-
-#define BLK_SZ(B) (*((Block_t *) (B)) & SZ_MASK)
-
-#define TREE_NODE_FLG (((Uint) 1) << 0)
-#define RED_FLG (((Uint) 1) << 1)
-#ifdef HARD_DEBUG
-# define LEFT_VISITED_FLG (((Uint) 1) << 2)
-# define RIGHT_VISITED_FLG (((Uint) 1) << 3)
-#endif
-
-#define IS_TREE_NODE(N) (((RBTree_t *) (N))->flags & TREE_NODE_FLG)
-#define IS_LIST_ELEM(N) (!IS_TREE_NODE(((RBTree_t *) (N))))
-
-#define SET_TREE_NODE(N) (((RBTree_t *) (N))->flags |= TREE_NODE_FLG)
-#define SET_LIST_ELEM(N) (((RBTree_t *) (N))->flags &= ~TREE_NODE_FLG)
-
-#define IS_RED(N) (((RBTree_t *) (N)) \
- && ((RBTree_t *) (N))->flags & RED_FLG)
-#define IS_BLACK(N) (!IS_RED(((RBTree_t *) (N))))
-
-#define SET_RED(N) (((RBTree_t *) (N))->flags |= RED_FLG)
-#define SET_BLACK(N) (((RBTree_t *) (N))->flags &= ~RED_FLG)
-
-#undef ASSERT
-#define ASSERT ASSERT_EXPR
-
-#if 1
-#define RBT_ASSERT ASSERT
-#else
-#define RBT_ASSERT(x)
-#endif
-
-
-#ifdef HARD_DEBUG
-static RBTree_t * check_tree(Uint);
-#endif
-
-#ifdef ERTS_INLINE
-# ifndef ERTS_CAN_INLINE
-# define ERTS_CAN_INLINE 1
-# endif
-#else
-# if defined(__GNUC__)
-# define ERTS_CAN_INLINE 1
-# define ERTS_INLINE __inline__
-# elif defined(__WIN32__)
-# define ERTS_CAN_INLINE 1
-# define ERTS_INLINE __inline
-# else
-# define ERTS_CAN_INLINE 0
-# define ERTS_INLINE
-# endif
-#endif
-
-/* Types... */
-#if 0
-typedef struct RBTree_t_ RBTree_t;
-
-struct RBTree_t_ {
- Block_t hdr;
- Uint flags;
- RBTree_t *parent;
- RBTree_t *left;
- RBTree_t *right;
-};
-#endif
-
-#if 0
-typedef struct {
- RBTree_t t;
- RBTree_t *next;
-} RBTreeList_t;
-
-#define LIST_NEXT(N) (((RBTreeList_t *) (N))->next)
-#define LIST_PREV(N) (((RBTreeList_t *) (N))->t.parent)
-#endif
-
-#ifdef DEBUG
-
-/* Destroy all tree fields */
-#define DESTROY_TREE_NODE(N) \
- sys_memset((void *) (((Block_t *) (N)) + 1), \
- 0xff, \
- (sizeof(RBTree_t) - sizeof(Block_t)))
-
-/* Destroy all tree and list fields */
-#define DESTROY_LIST_ELEM(N) \
- sys_memset((void *) (((Block_t *) (N)) + 1), \
- 0xff, \
- (sizeof(RBTreeList_t) - sizeof(Block_t)))
-
-#else
-
-#define DESTROY_TREE_NODE(N)
-#define DESTROY_LIST_ELEM(N)
-
-#endif
-
-
-/*
- * Red-Black Tree operations needed
- */
-
-static ERTS_INLINE void
-left_rotate(RBTree_t **root, RBTree_t *x)
-{
- RBTree_t *y = x->right;
- x->right = y->left;
- if (y->left)
- y->left->parent = x;
- y->parent = x->parent;
- if (!y->parent) {
- RBT_ASSERT(*root == x);
- *root = y;
- }
- else if (x == x->parent->left)
- x->parent->left = y;
- else {
- RBT_ASSERT(x == x->parent->right);
- x->parent->right = y;
- }
- y->left = x;
- x->parent = y;
-}
-
-static ERTS_INLINE void
-right_rotate(RBTree_t **root, RBTree_t *x)
-{
- RBTree_t *y = x->left;
- x->left = y->right;
- if (y->right)
- y->right->parent = x;
- y->parent = x->parent;
- if (!y->parent) {
- RBT_ASSERT(*root == x);
- *root = y;
- }
- else if (x == x->parent->right)
- x->parent->right = y;
- else {
- RBT_ASSERT(x == x->parent->left);
- x->parent->left = y;
- }
- y->right = x;
- x->parent = y;
-}
-
-
-/*
- * Replace node x with node y
- * NOTE: block header of y is not changed
- */
-static ERTS_INLINE void
-replace(RBTree_t **root, RBTree_t *x, RBTree_t *y)
-{
-
- if (!x->parent) {
- RBT_ASSERT(*root == x);
- *root = y;
- }
- else if (x == x->parent->left)
- x->parent->left = y;
- else {
- RBT_ASSERT(x == x->parent->right);
- x->parent->right = y;
- }
- if (x->left) {
- RBT_ASSERT(x->left->parent == x);
- x->left->parent = y;
- }
- if (x->right) {
- RBT_ASSERT(x->right->parent == x);
- x->right->parent = y;
- }
-
- y->flags = x->flags;
- y->parent = x->parent;
- y->right = x->right;
- y->left = x->left;
-
- DESTROY_TREE_NODE(x);
-
-}
-
-static void
-tree_insert_fixup(RBTree_t *blk)
-{
- RBTree_t *x = blk, *y;
-
- /*
- * Rearrange the tree so that it satisfies the Red-Black Tree properties
- */
-
- RBT_ASSERT(x != root && IS_RED(x->parent));
- do {
-
- /*
- * x and its parent are both red. Move the red pair up the tree
- * until we get to the root or until we can separate them.
- */
-
- RBT_ASSERT(IS_RED(x));
- RBT_ASSERT(IS_BLACK(x->parent->parent));
- RBT_ASSERT(x->parent->parent);
-
- if (x->parent == x->parent->parent->left) {
- y = x->parent->parent->right;
- if (IS_RED(y)) {
- SET_BLACK(y);
- x = x->parent;
- SET_BLACK(x);
- x = x->parent;
- SET_RED(x);
- }
- else {
-
- if (x == x->parent->right) {
- x = x->parent;
- left_rotate(&root, x);
- }
-
- RBT_ASSERT(x == x->parent->parent->left->left);
- RBT_ASSERT(IS_RED(x));
- RBT_ASSERT(IS_RED(x->parent));
- RBT_ASSERT(IS_BLACK(x->parent->parent));
- RBT_ASSERT(IS_BLACK(y));
-
- SET_BLACK(x->parent);
- SET_RED(x->parent->parent);
- right_rotate(&root, x->parent->parent);
-
- RBT_ASSERT(x == x->parent->left);
- RBT_ASSERT(IS_RED(x));
- RBT_ASSERT(IS_RED(x->parent->right));
- RBT_ASSERT(IS_BLACK(x->parent));
- break;
- }
- }
- else {
- RBT_ASSERT(x->parent == x->parent->parent->right);
- y = x->parent->parent->left;
- if (IS_RED(y)) {
- SET_BLACK(y);
- x = x->parent;
- SET_BLACK(x);
- x = x->parent;
- SET_RED(x);
- }
- else {
-
- if (x == x->parent->left) {
- x = x->parent;
- right_rotate(&root, x);
- }
-
- RBT_ASSERT(x == x->parent->parent->right->right);
- RBT_ASSERT(IS_RED(x));
- RBT_ASSERT(IS_RED(x->parent));
- RBT_ASSERT(IS_BLACK(x->parent->parent));
- RBT_ASSERT(IS_BLACK(y));
-
- SET_BLACK(x->parent);
- SET_RED(x->parent->parent);
- left_rotate(&root, x->parent->parent);
-
- RBT_ASSERT(x == x->parent->right);
- RBT_ASSERT(IS_RED(x));
- RBT_ASSERT(IS_RED(x->parent->left));
- RBT_ASSERT(IS_BLACK(x->parent));
- break;
- }
- }
- } while (x != root && IS_RED(x->parent));
-
- SET_BLACK(root);
-}
-
-static void
-unlink_free_block(Block_t *del)
-{
- Uint spliced_is_black;
- RBTree_t *x, *y, *z = (RBTree_t *) del;
- RBTree_t null_x; /* null_x is used to get the fixup started when we
- splice out a node without children. */
-
- null_x.parent = NULL;
-
-#ifdef HARD_DEBUG
- check_tree(0);
-#endif
-
- /* Remove node from tree... */
-
- /* Find node to splice out */
- if (!z->left || !z->right)
- y = z;
- else
- /* Set y to z:s successor */
- for(y = z->right; y->left; y = y->left);
- /* splice out y */
- x = y->left ? y->left : y->right;
- spliced_is_black = IS_BLACK(y);
- if (x) {
- x->parent = y->parent;
- }
- else if (!x && spliced_is_black) {
- x = &null_x;
- x->flags = 0;
- SET_BLACK(x);
- x->right = x->left = NULL;
- x->parent = y->parent;
- y->left = x;
- }
-
- if (!y->parent) {
- RBT_ASSERT(root == y);
- root = x;
- }
- else if (y == y->parent->left)
- y->parent->left = x;
- else {
- RBT_ASSERT(y == y->parent->right);
- y->parent->right = x;
- }
- if (y != z) {
- /* We spliced out the successor of z; replace z by the successor */
- replace(&root, z, y);
- }
-
- if (spliced_is_black) {
- /* We removed a black node which makes the resulting tree
- violate the Red-Black Tree properties. Fixup tree... */
-
- while (IS_BLACK(x) && x->parent) {
-
- /*
- * x has an "extra black" which we move up the tree
- * until we reach the root or until we can get rid of it.
- *
- * y is the sibbling of x
- */
-
- if (x == x->parent->left) {
- y = x->parent->right;
- RBT_ASSERT(y);
- if (IS_RED(y)) {
- RBT_ASSERT(y->right);
- RBT_ASSERT(y->left);
- SET_BLACK(y);
- RBT_ASSERT(IS_BLACK(x->parent));
- SET_RED(x->parent);
- left_rotate(&root, x->parent);
- y = x->parent->right;
- }
- RBT_ASSERT(y);
- RBT_ASSERT(IS_BLACK(y));
- if (IS_BLACK(y->left) && IS_BLACK(y->right)) {
- SET_RED(y);
- x = x->parent;
- }
- else {
- if (IS_BLACK(y->right)) {
- SET_BLACK(y->left);
- SET_RED(y);
- right_rotate(&root, y);
- y = x->parent->right;
- }
- RBT_ASSERT(y);
- if (IS_RED(x->parent)) {
-
- SET_BLACK(x->parent);
- SET_RED(y);
- }
- RBT_ASSERT(y->right);
- SET_BLACK(y->right);
- left_rotate(&root, x->parent);
- x = root;
- break;
- }
- }
- else {
- RBT_ASSERT(x == x->parent->right);
- y = x->parent->left;
- RBT_ASSERT(y);
- if (IS_RED(y)) {
- RBT_ASSERT(y->right);
- RBT_ASSERT(y->left);
- SET_BLACK(y);
- RBT_ASSERT(IS_BLACK(x->parent));
- SET_RED(x->parent);
- right_rotate(&root, x->parent);
- y = x->parent->left;
- }
- RBT_ASSERT(y);
- RBT_ASSERT(IS_BLACK(y));
- if (IS_BLACK(y->right) && IS_BLACK(y->left)) {
- SET_RED(y);
- x = x->parent;
- }
- else {
- if (IS_BLACK(y->left)) {
- SET_BLACK(y->right);
- SET_RED(y);
- left_rotate(&root, y);
- y = x->parent->left;
- }
- RBT_ASSERT(y);
- if (IS_RED(x->parent)) {
- SET_BLACK(x->parent);
- SET_RED(y);
- }
- RBT_ASSERT(y->left);
- SET_BLACK(y->left);
- right_rotate(&root, x->parent);
- x = root;
- break;
- }
- }
- }
- SET_BLACK(x);
-
- if (null_x.parent) {
- if (null_x.parent->left == &null_x)
- null_x.parent->left = NULL;
- else {
- RBT_ASSERT(null_x.parent->right == &null_x);
- null_x.parent->right = NULL;
- }
- RBT_ASSERT(!null_x.left);
- RBT_ASSERT(!null_x.right);
- }
- else if (root == &null_x) {
- root = NULL;
- RBT_ASSERT(!null_x.left);
- RBT_ASSERT(!null_x.right);
- }
- }
-
-
- DESTROY_TREE_NODE(del);
-
-#ifdef HARD_DEBUG
- check_tree(0);
-#endif
-
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
- * "Address order best fit" specific callbacks. *
-\* */
-
-static void
-link_free_block(Block_t *block)
-{
- RBTree_t *blk = (RBTree_t *) block;
- Uint blk_sz = BLK_SZ(blk);
-
- blk->flags = 0;
- blk->left = NULL;
- blk->right = NULL;
-
- if (!root) {
- blk->parent = NULL;
- SET_BLACK(blk);
- root = blk;
- } else {
- RBTree_t *x = root;
- while (1) {
- Uint size;
-
- size = BLK_SZ(x);
-
- if (blk_sz < size || (blk_sz == size && blk < x)) {
- if (!x->left) {
- blk->parent = x;
- x->left = blk;
- break;
- }
- x = x->left;
- }
- else {
- if (!x->right) {
- blk->parent = x;
- x->right = blk;
- break;
- }
- x = x->right;
- }
-
- }
-
- /* Insert block into size tree */
- RBT_ASSERT(blk->parent);
-
- SET_RED(blk);
- if (IS_RED(blk->parent)) {
- tree_insert_fixup(blk);
- }
- }
-
-#ifdef HARD_DEBUG
- check_tree(0);
-#endif
-}
-
-
-static Block_t *
-get_free_block(Uint size)
-{
- RBTree_t *x = root;
- RBTree_t *blk = NULL;
- Uint blk_sz;
-
- while (x) {
- blk_sz = BLK_SZ(x);
- if (blk_sz < size) {
- x = x->right;
- }
- else {
- blk = x;
- x = x->left;
- }
- }
-
- if (!blk)
- return NULL;
-
-#ifdef HARD_DEBUG
- ASSERT(blk == check_tree(size));
-#endif
-
- unlink_free_block((Block_t *) blk);
-
- return (Block_t *) blk;
-}
-
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\
- * Debug functions *
-\* */
-
-
-#ifdef HARD_DEBUG
-
-#define IS_LEFT_VISITED(FB) ((FB)->flags & LEFT_VISITED_FLG)
-#define IS_RIGHT_VISITED(FB) ((FB)->flags & RIGHT_VISITED_FLG)
-
-#define SET_LEFT_VISITED(FB) ((FB)->flags |= LEFT_VISITED_FLG)
-#define SET_RIGHT_VISITED(FB) ((FB)->flags |= RIGHT_VISITED_FLG)
-
-#define UNSET_LEFT_VISITED(FB) ((FB)->flags &= ~LEFT_VISITED_FLG)
-#define UNSET_RIGHT_VISITED(FB) ((FB)->flags &= ~RIGHT_VISITED_FLG)
-
-
-#if 0
-# define PRINT_TREE
-#else
-# undef PRINT_TREE
-#endif
-
-#ifdef PRINT_TREE
-static void print_tree(void);
-#endif
-
-/*
- * Checks that the order between parent and children are correct,
- * and that the Red-Black Tree properies are satisfied. if size > 0,
- * check_tree() returns a node that satisfies "best fit" resp.
- * "address order best fit".
- *
- * The Red-Black Tree properies are:
- * 1. Every node is either red or black.
- * 2. Every leaf (NIL) is black.
- * 3. If a node is red, then both its children are black.
- * 4. Every simple path from a node to a descendant leaf
- * contains the same number of black nodes.
- */
-
-static RBTree_t *
-check_tree(Uint size)
-{
- RBTree_t *res = NULL;
- Sint blacks;
- Sint curr_blacks;
- RBTree_t *x;
-
-#ifdef PRINT_TREE
- print_tree();
-#endif
-
- if (!root)
- return res;
-
- x = root;
- ASSERT(IS_BLACK(x));
- ASSERT(!x->parent);
- curr_blacks = 1;
- blacks = -1;
-
- while (x) {
- if (!IS_LEFT_VISITED(x)) {
- SET_LEFT_VISITED(x);
- if (x->left) {
- x = x->left;
- if (IS_BLACK(x))
- curr_blacks++;
- continue;
- }
- else {
- if (blacks < 0)
- blacks = curr_blacks;
- ASSERT(blacks == curr_blacks);
- }
- }
-
- if (!IS_RIGHT_VISITED(x)) {
- SET_RIGHT_VISITED(x);
- if (x->right) {
- x = x->right;
- if (IS_BLACK(x))
- curr_blacks++;
- continue;
- }
- else {
- if (blacks < 0)
- blacks = curr_blacks;
- ASSERT(blacks == curr_blacks);
- }
- }
-
-
- if (IS_RED(x)) {
- ASSERT(IS_BLACK(x->right));
- ASSERT(IS_BLACK(x->left));
- }
-
- ASSERT(x->parent || x == root);
-
- if (x->left) {
- ASSERT(x->left->parent == x);
- ASSERT(BLK_SZ(x->left) < BLK_SZ(x)
- || (BLK_SZ(x->left) == BLK_SZ(x) && x->left < x));
- }
-
- if (x->right) {
- ASSERT(x->right->parent == x);
- ASSERT(BLK_SZ(x->right) > BLK_SZ(x)
- || (BLK_SZ(x->right) == BLK_SZ(x) && x->right > x));
- }
-
- if (size && BLK_SZ(x) >= size) {
- if (!res
- || BLK_SZ(x) < BLK_SZ(res)
- || (BLK_SZ(x) == BLK_SZ(res) && x < res))
- res = x;
- }
-
- UNSET_LEFT_VISITED(x);
- UNSET_RIGHT_VISITED(x);
- if (IS_BLACK(x))
- curr_blacks--;
- x = x->parent;
-
- }
-
- ASSERT(curr_blacks == 0);
-
- UNSET_LEFT_VISITED(root);
- UNSET_RIGHT_VISITED(root);
-
- return res;
-
-}
-
-
-#ifdef PRINT_TREE
-#define INDENT_STEP 2
-
-#include <stdio.h>
-
-static void
-print_tree_aux(RBTree_t *x, int indent)
-{
- int i;
-
- if (!x) {
- for (i = 0; i < indent; i++) {
- putc(' ', stderr);
- }
- fprintf(stderr, "BLACK: nil\r\n");
- }
- else {
- print_tree_aux(x->right, indent + INDENT_STEP);
- for (i = 0; i < indent; i++) {
- putc(' ', stderr);
- }
- fprintf(stderr, "%s: sz=%lu addr=0x%lx\r\n",
- IS_BLACK(x) ? "BLACK" : "RED",
- BLK_SZ(x),
- (Uint) x);
- print_tree_aux(x->left, indent + INDENT_STEP);
- }
-}
-
-
-static void
-print_tree(void)
-{
- fprintf(stderr, " --- Size-Adress tree begin ---\r\n");
- print_tree_aux(root, 0);
- fprintf(stderr, " --- Size-Adress tree end ---\r\n");
-}
-
-#endif
-
-#endif
-
-#endif /* ENABLE_ELIB_MALLOC */
diff --git a/erts/emulator/beam/elib_stat.h b/erts/emulator/beam/elib_stat.h
deleted file mode 100644
index d8c7f31737..0000000000
--- a/erts/emulator/beam/elib_stat.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 1996-2009. All Rights Reserved.
- *
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
- *
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * %CopyrightEnd%
- */
-
-/*
-** Interface to elib statistics
-**
-*/
-#ifndef __ELIB_STAT_H__
-#define __ELIB_STAT_H__
-
-struct elib_stat {
- int mem_total; /* Number of heap words */
- int mem_blocks; /* Number of block */
- int mem_alloc; /* Number of words in use */
- int mem_free; /* Number of words free */
- int min_used; /* Size of the smallest block used */
- int max_free; /* Size of the largest free block */
- int free_blocks; /* Number of fragments in free list */
- int mem_max_alloc;/* Max number of words in use */
-};
-
-EXTERN_FUNCTION(void, elib_statistics, (void*));
-EXTERN_FUNCTION(int, elib_check_heap, (_VOID_));
-EXTERN_FUNCTION(void, elib_heap_dump, (char*));
-EXTERN_FUNCTION(void, elib_stat, (struct elib_stat*));
-EXTERN_FUNCTION(int, elib_heap_map, (unsigned char*, int));
-EXTERN_FUNCTION(int, elib_histo, (unsigned long*, unsigned long*, int, int));
-
-#endif
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 87503af7d5..07b4167b27 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -38,9 +38,6 @@
#include "erl_bits.h"
#include "erl_instrument.h"
#include "erl_mseg.h"
-#ifdef ELIB_ALLOC_IS_CLIB
-#include "erl_version.h"
-#endif
#include "erl_monitors.h"
#include "erl_bif_timer.h"
#if defined(ERTS_ALC_T_DRV_SEL_D_STATE) || defined(ERTS_ALC_T_DRV_EV_D_STATE)
@@ -73,7 +70,6 @@ static Uint install_debug_functions(void);
#endif
#endif
#endif
-extern void elib_ensure_initialized(void);
ErtsAllocatorFunctions_t erts_allctrs[ERTS_ALC_A_MAX+1];
ErtsAllocatorInfo_t erts_allctrs_info[ERTS_ALC_A_MAX+1];
@@ -2321,13 +2317,8 @@ erts_allocator_info_term(void *proc, Eterm which_alloc, int only_sz)
l = 0;
as[l] = am_atom_put("e", 1);
ts[l++] = am_true;
-#ifdef ELIB_ALLOC_IS_CLIB
- as[l] = am_atom_put("m", 1);
- ts[l++] = am_atom_put("elib", 4);
-#else
as[l] = am_atom_put("m", 1);
ts[l++] = am_atom_put("libc", 4);
-#endif
if(sas.trim_threshold >= 0) {
as[l] = am_atom_put("tt", 2);
ts[l++] = erts_bld_uint(hpp, szp,
@@ -2481,11 +2472,7 @@ erts_allocator_info(int to, void *arg)
case ERTS_ALC_A_SYSTEM: {
SysAllocStat sas;
erts_print(to, arg, "option e: true\n");
-#ifdef ELIB_ALLOC_IS_CLIB
- erts_print(to, arg, "option m: elib\n");
-#else
erts_print(to, arg, "option m: libc\n");
-#endif
sys_alloc_stat(&sas);
if(sas.trim_threshold >= 0)
erts_print(to, arg, "option tt: %d\n", sas.trim_threshold);
@@ -2589,13 +2576,8 @@ erts_allocator_options(void *proc)
switch (a) {
case ERTS_ALC_A_SYSTEM:
-#ifdef ELIB_ALLOC_IS_CLIB
- as[l] = am_atom_put("m", 1);
- ts[l++] = am_atom_put("elib", 4);
-#else
as[l] = am_atom_put("m", 1);
ts[l++] = am_atom_put("libc", 4);
-#endif
if(sas.trim_threshold >= 0) {
as[l] = am_atom_put("tt", 2);
ts[l++] = erts_bld_uint(hpp, szp,
@@ -2666,23 +2648,7 @@ erts_allocator_options(void *proc)
features = length ? erts_bld_list(hpp, szp, length, terms) : NIL;
-#if defined(ELIB_ALLOC_IS_CLIB)
- {
- Eterm version;
- int i;
- int ver[5];
- i = sscanf(ERLANG_VERSION,
- "%d.%d.%d.%d.%d",
- &ver[0], &ver[1], &ver[2], &ver[3], &ver[4]);
-
- version = NIL;
- for(i--; i >= 0; i--)
- version = erts_bld_cons(hpp, szp, make_small(ver[i]), version);
-
- res = erts_bld_tuple(hpp, szp, 4,
- am_elib_malloc, version, features, settings);
- }
-#elif defined(__GLIBC__)
+#if defined(__GLIBC__)
{
Eterm AM_glibc = am_atom_put("glibc", 5);
Eterm version;
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 5128776c47..ed157f5b7e 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -38,9 +38,6 @@
#include "erl_instrument.h"
#include "dist.h"
#include "erl_gc.h"
-#ifdef ELIB_ALLOC_IS_CLIB
-#include "elib_stat.h"
-#endif
#ifdef HIPE
#include "hipe_arch.h"
#endif
@@ -2126,86 +2123,8 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
BIF_RET(erts_alloc_util_allocators((void *) BIF_P));
}
else if (BIF_ARG_1 == am_elib_malloc) {
-#ifdef ELIB_ALLOC_IS_CLIB
- struct elib_stat stat;
- DECL_AM(heap_size);
- DECL_AM(max_alloced_size);
- DECL_AM(alloced_size);
- DECL_AM(free_size);
- DECL_AM(no_alloced_blocks);
- DECL_AM(no_free_blocks);
- DECL_AM(smallest_alloced_block);
- DECL_AM(largest_free_block);
- Eterm atoms[8];
- Eterm ints[8];
- Uint **hpp;
- Uint sz;
- Uint *szp;
- int length;
-#ifdef DEBUG
- Uint *endp;
-#endif
-
- elib_stat(&stat);
-
- /* First find out the heap size needed ... */
- hpp = NULL;
- szp = &sz;
- sz = 0;
-
- build_elib_malloc_term:
- length = 0;
- atoms[length] = AM_heap_size;
- ints[length++] = erts_bld_uint(hpp, szp,
- (Uint) stat.mem_total*sizeof(Uint));
- atoms[length] = AM_max_alloced_size;
- ints[length++] = erts_bld_uint(hpp, szp,
- (Uint) stat.mem_max_alloc*sizeof(Uint));
- atoms[length] = AM_alloced_size;
- ints[length++] = erts_bld_uint(hpp, szp,
- (Uint) stat.mem_alloc*sizeof(Uint));
- atoms[length] = AM_free_size;
- ints[length++] = erts_bld_uint(hpp, szp,
- (Uint) stat.mem_free*sizeof(Uint));
- atoms[length] = AM_no_alloced_blocks;
- ints[length++] = erts_bld_uint(hpp, szp, (Uint) stat.mem_blocks);
- atoms[length] = AM_no_free_blocks;
- ints[length++] = erts_bld_uint(hpp, szp, (Uint) stat.free_blocks);
- atoms[length] = AM_smallest_alloced_block;
- ints[length++] = erts_bld_uint(hpp, szp,
- (Uint) stat.min_used*sizeof(Uint));
- atoms[length] = AM_largest_free_block;
- ints[length++] = erts_bld_uint(hpp, szp,
- (Uint) stat.max_free*sizeof(Uint));
-
-
-
- ASSERT(length <= sizeof(atoms)/sizeof(Eterm));
- ASSERT(length <= sizeof(ints)/sizeof(Eterm));
-
- res = erts_bld_2tup_list(hpp, szp, length, atoms, ints);
-
- if (szp) {
- /* ... and then build the term */
- hp = HAlloc(BIF_P, sz);
-#ifdef DEBUG
- endp = hp + sz;
-#endif
-
- szp = NULL;
- hpp = &hp;
- goto build_elib_malloc_term;
- }
-
-#ifdef DEBUG
- ASSERT(endp == hp);
-#endif
-
-#else /* #ifdef ELIB_ALLOC_IS_CLIB */
- res = am_false;
-#endif /* #ifdef ELIB_ALLOC_IS_CLIB */
-
- BIF_RET(res);
+ /* To be removed in R15 */
+ BIF_RET(am_false);
}
else if (BIF_ARG_1 == am_os_version) {
int major, minor, build;
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 5eedf7f39f..0031568af6 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -25,14 +25,6 @@
# define NO_FPE_SIGNALS
#endif
-/* Never use elib-malloc when purify-memory-tracing */
-#if defined(PURIFY)
-#undef ENABLE_ELIB_MALLOC
-#undef ELIB_HEAP_SBRK
-#undef ELIB_ALLOC_IS_CLIB
-#endif
-
-
/* xxxP __VXWORKS__ */
#ifdef VXWORKS
#include <vxWorks.h>
@@ -1103,9 +1095,6 @@ erts_refc_read(erts_refc_t *refcp, long min_val)
extern int erts_use_kernel_poll;
#endif
-void elib_ensure_initialized(void);
-
-
#if defined(VXWORKS)
/* NOTE! sys_calloc2 does not exist on other
platforms than VxWorks and OSE */
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index 25472ef47a..ab5e8b5d4a 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -48,11 +48,11 @@
#undef M_MMAP_THRESHOLD
#undef M_MMAP_MAX
-#if !defined(ELIB_ALLOC_IS_CLIB) && defined(__GLIBC__) && defined(HAVE_MALLOC_H)
+#if defined(__GLIBC__) && defined(HAVE_MALLOC_H)
#include <malloc.h>
#endif
-#if defined(ELIB_ALLOC_IS_CLIB) || !defined(HAVE_MALLOPT)
+#if !defined(HAVE_MALLOPT)
#undef HAVE_MALLOPT
#define HAVE_MALLOPT 0
#endif
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index f59f8a14d4..af4ab693dc 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -2560,7 +2560,6 @@ extern Preload pre_loaded[];
void erts_sys_alloc_init(void)
{
- elib_ensure_initialized();
}
void *erts_sys_alloc(ErtsAlcType_t t, void *x, Uint sz)
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index 64eced6fc9..7ec9613288 100644
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -2627,7 +2627,6 @@ erts_sys_main_thread(void)
void erts_sys_alloc_init(void)
{
- elib_ensure_initialized();
}
void *erts_sys_alloc(ErtsAlcType_t t, void *x, Uint sz)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 07:09:36 +0000