#include "genesis/instance.h"
#include "genesis/layout.h"
#include "gencgc.h"
-#if defined(LUTEX_WIDETAG)
-#include "pthread-lutex.h"
-#endif
#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
#include "genesis/cons.h"
#endif
/* forward declarations */
-page_index_t gc_find_freeish_pages(long *restart_page_ptr, long nbytes,
+page_index_t gc_find_freeish_pages(page_index_t *restart_page_ptr, long nbytes,
int page_type_flag);
\f
boolean enable_page_protection = 1;
/* the minimum size (in bytes) for a large object*/
+#if (GENCGC_ALLOC_GRANULARITY >= PAGE_BYTES) && (GENCGC_ALLOC_GRANULARITY >= GENCGC_CARD_BYTES)
long large_object_size = 4 * GENCGC_ALLOC_GRANULARITY;
+#elif (GENCGC_CARD_BYTES >= PAGE_BYTES) && (GENCGC_CARD_BYTES >= GENCGC_ALLOC_GRANULARITY)
+long large_object_size = 4 * GENCGC_CARD_BYTES;
+#else
+long large_object_size = 4 * PAGE_BYTES;
+#endif
\f
/*
*/
/* the total bytes allocated. These are seen by Lisp DYNAMIC-USAGE. */
-unsigned long bytes_allocated = 0;
-unsigned long auto_gc_trigger = 0;
+os_vm_size_t bytes_allocated = 0;
+os_vm_size_t auto_gc_trigger = 0;
/* the source and destination generations. These are set before a GC starts
* scavenging. */
return (-1);
}
-static size_t
-npage_bytes(long npages)
+static os_vm_size_t
+npage_bytes(page_index_t npages)
{
gc_assert(npages>=0);
- return ((unsigned long)npages)*GENCGC_CARD_BYTES;
+ return ((os_vm_size_t)npages)*GENCGC_CARD_BYTES;
}
/* Check that X is a higher address than Y and return offset from Y to
page_index_t alloc_large_unboxed_start_page;
/* the bytes allocated to this generation */
- unsigned long bytes_allocated;
+ os_vm_size_t bytes_allocated;
/* the number of bytes at which to trigger a GC */
- unsigned long gc_trigger;
+ os_vm_size_t gc_trigger;
/* to calculate a new level for gc_trigger */
- unsigned long bytes_consed_between_gc;
+ os_vm_size_t bytes_consed_between_gc;
/* the number of GCs since the last raise */
int num_gc;
* objects are added from a GC of a younger generation. Dividing by
* the bytes_allocated will give the average age of the memory in
* this generation since its last GC. */
- unsigned long cum_sum_bytes_allocated;
+ os_vm_size_t cum_sum_bytes_allocated;
/* a minimum average memory age before a GC will occur helps
* prevent a GC when a large number of new live objects have been
* added, in which case a GC could be a waste of time */
double minimum_age_before_gc;
-
- /* A linked list of lutex structures in this generation, used for
- * implementing lutex finalization. */
-#ifdef LUTEX_WIDETAG
- struct lutex *lutexes;
-#else
- void *lutexes;
-#endif
};
/* an array of generation structures. There needs to be one more
static pthread_mutex_t allocation_lock = PTHREAD_MUTEX_INITIALIZER;
#endif
-extern unsigned long gencgc_release_granularity;
-unsigned long gencgc_release_granularity = GENCGC_RELEASE_GRANULARITY;
+extern os_vm_size_t gencgc_release_granularity;
+os_vm_size_t gencgc_release_granularity = GENCGC_RELEASE_GRANULARITY;
-extern unsigned long gencgc_alloc_granularity;
-unsigned long gencgc_alloc_granularity = GENCGC_ALLOC_GRANULARITY;
+extern os_vm_size_t gencgc_alloc_granularity;
+os_vm_size_t gencgc_alloc_granularity = GENCGC_ALLOC_GRANULARITY;
\f
/*
/* Count the number of pages which are write-protected within the
* given generation. */
-static long
+static page_index_t
count_write_protect_generation_pages(generation_index_t generation)
{
- page_index_t i;
- unsigned long count = 0;
+ page_index_t i, count = 0;
for (i = 0; i < last_free_page; i++)
if (page_allocated_p(i)
}
/* Count the number of pages within the given generation. */
-static long
+static page_index_t
count_generation_pages(generation_index_t generation)
{
page_index_t i;
- long count = 0;
+ page_index_t count = 0;
for (i = 0; i < last_free_page; i++)
if (page_allocated_p(i)
}
#if QSHOW
-static long
+static page_index_t
count_dont_move_pages(void)
{
page_index_t i;
- long count = 0;
+ page_index_t count = 0;
for (i = 0; i < last_free_page; i++) {
if (page_allocated_p(i)
&& (page_table[i].dont_move != 0)) {
/* Work through the pages and add up the number of bytes used for the
* given generation. */
-static unsigned long
+static os_vm_size_t
count_generation_bytes_allocated (generation_index_t gen)
{
page_index_t i;
- unsigned long result = 0;
+ os_vm_size_t result = 0;
for (i = 0; i < last_free_page; i++) {
if (page_allocated_p(i)
&& (page_table[i].gen == gen))
for (i = 0; i < SCRATCH_GENERATION; i++) {
page_index_t j;
- long boxed_cnt = 0;
- long unboxed_cnt = 0;
- long large_boxed_cnt = 0;
- long large_unboxed_cnt = 0;
- long pinned_cnt=0;
+ page_index_t boxed_cnt = 0;
+ page_index_t unboxed_cnt = 0;
+ page_index_t large_boxed_cnt = 0;
+ page_index_t large_unboxed_cnt = 0;
+ page_index_t pinned_cnt=0;
for (j = 0; j < last_free_page; j++)
if (page_table[j].gen == i) {
gc_assert(generations[i].bytes_allocated
== count_generation_bytes_allocated(i));
fprintf(file,
- " %1d: %5ld %5ld %5ld %5ld %5ld %5ld %5ld %5ld %5ld %8ld %5ld %8ld %4ld %3d %7.4f\n",
+ " %1d: %5ld %5ld %5ld %5ld",
i,
generations[i].alloc_start_page,
generations[i].alloc_unboxed_start_page,
generations[i].alloc_large_start_page,
- generations[i].alloc_large_unboxed_start_page,
- boxed_cnt,
- unboxed_cnt,
- large_boxed_cnt,
- large_unboxed_cnt,
- pinned_cnt,
+ generations[i].alloc_large_unboxed_start_page);
+ fprintf(file,
+ " %5"PAGE_INDEX_FMT" %5"PAGE_INDEX_FMT" %5"PAGE_INDEX_FMT
+ " %5"PAGE_INDEX_FMT" %5"PAGE_INDEX_FMT,
+ boxed_cnt, unboxed_cnt, large_boxed_cnt,
+ large_unboxed_cnt, pinned_cnt);
+ fprintf(file
+ " %8ld %5ld %8ld %4ld %3d %7.4f\n",
generations[i].bytes_allocated,
(npage_bytes(count_generation_pages(i))
- generations[i].bytes_allocated),
generations[i].num_gc,
generation_average_age(i));
}
- fprintf(file," Total bytes allocated = %lu\n", bytes_allocated);
+ fprintf(file," Total bytes allocated = %lu\n", (unsigned long)bytes_allocated);
fprintf(file," Dynamic-space-size bytes = %lu\n", (unsigned long)dynamic_space_size);
fpu_restore(fpu_state);
* OS. Generally done after a large GC.
*/
void zero_pages_with_mmap(page_index_t start, page_index_t end) {
- int i;
+ page_index_t i;
void *addr = page_address(start), *new_addr;
- size_t length = npage_bytes(1+end-start);
+ os_vm_size_t length = npage_bytes(1+end-start);
if (start > end)
return;
}
+static void
+zero_and_mark_pages(page_index_t start, page_index_t end) {
+ page_index_t i;
+
+ zero_pages(start, end);
+ for (i = start; i <= end; i++)
+ page_table[i].need_to_zero = 0;
+}
+
/* Zero the pages from START to END (inclusive), except for those
* pages that are known to already zeroed. Mark all pages in the
* ranges as non-zeroed.
}
page_index_t
-gc_find_freeish_pages(page_index_t *restart_page_ptr, long nbytes,
+gc_find_freeish_pages(page_index_t *restart_page_ptr, long bytes,
int page_type_flag)
{
- page_index_t first_page, last_page;
- page_index_t restart_page = *restart_page_ptr;
- long nbytes_goal = nbytes;
- long bytes_found = 0;
- long most_bytes_found = 0;
- page_index_t most_bytes_found_from, most_bytes_found_to;
- int small_object = nbytes < GENCGC_CARD_BYTES;
+ page_index_t most_bytes_found_from = 0, most_bytes_found_to = 0;
+ page_index_t first_page, last_page, restart_page = *restart_page_ptr;
+ os_vm_size_t nbytes = bytes;
+ os_vm_size_t nbytes_goal = nbytes;
+ os_vm_size_t bytes_found = 0;
+ os_vm_size_t most_bytes_found = 0;
+ boolean small_object = nbytes < GENCGC_CARD_BYTES;
/* FIXME: assert(free_pages_lock is held); */
if (nbytes_goal < gencgc_alloc_granularity)
- nbytes_goal = gencgc_alloc_granularity;
+ nbytes_goal = gencgc_alloc_granularity;
/* Toggled by gc_and_save for heap compaction, normally -1. */
if (gencgc_alloc_start_page != -1) {
restart_page = gencgc_alloc_start_page;
}
- gc_assert(nbytes>=0);
+ /* FIXME: This is on bytes instead of nbytes pending cleanup of
+ * long from the interface. */
+ gc_assert(bytes>=0);
/* Search for a page with at least nbytes of space. We prefer
* not to split small objects on multiple pages, to reduce the
* number of contiguous allocation regions spaning multiple
gc_heap_exhausted_error_or_lose(most_bytes_found, nbytes);
}
+ gc_assert(most_bytes_found_to);
*restart_page_ptr = most_bytes_found_from;
return most_bytes_found_to-1;
}
return copy_large_unboxed_object(object, length);
}
#endif
-
-\f
-/*
- * Lutexes. Using the normal finalization machinery for finalizing
- * lutexes is tricky, since the finalization depends on working lutexes.
- * So we track the lutexes in the GC and finalize them manually.
- */
-
-#if defined(LUTEX_WIDETAG)
-
-/*
- * Start tracking LUTEX in the GC, by adding it to the linked list of
- * lutexes in the nursery generation. The caller is responsible for
- * locking, and GCs must be inhibited until the registration is
- * complete.
- */
-void
-gencgc_register_lutex (struct lutex *lutex) {
- int index = find_page_index(lutex);
- generation_index_t gen;
- struct lutex *head;
-
- /* This lutex is in static space, so we don't need to worry about
- * finalizing it.
- */
- if (index == -1)
- return;
-
- gen = page_table[index].gen;
-
- gc_assert(gen >= 0);
- gc_assert(gen < NUM_GENERATIONS);
-
- head = generations[gen].lutexes;
-
- lutex->gen = gen;
- lutex->next = head;
- lutex->prev = NULL;
- if (head)
- head->prev = lutex;
- generations[gen].lutexes = lutex;
-}
-
-/*
- * Stop tracking LUTEX in the GC by removing it from the appropriate
- * linked lists. This will only be called during GC, so no locking is
- * needed.
- */
-void
-gencgc_unregister_lutex (struct lutex *lutex) {
- if (lutex->prev) {
- lutex->prev->next = lutex->next;
- } else {
- generations[lutex->gen].lutexes = lutex->next;
- }
-
- if (lutex->next) {
- lutex->next->prev = lutex->prev;
- }
-
- lutex->next = NULL;
- lutex->prev = NULL;
- lutex->gen = -1;
-}
-
-/*
- * Mark all lutexes in generation GEN as not live.
- */
-static void
-unmark_lutexes (generation_index_t gen) {
- struct lutex *lutex = generations[gen].lutexes;
-
- while (lutex) {
- lutex->live = 0;
- lutex = lutex->next;
- }
-}
-
-/*
- * Finalize all lutexes in generation GEN that have not been marked live.
- */
-static void
-reap_lutexes (generation_index_t gen) {
- struct lutex *lutex = generations[gen].lutexes;
-
- while (lutex) {
- struct lutex *next = lutex->next;
- if (!lutex->live) {
- lutex_destroy((tagged_lutex_t) lutex);
- gencgc_unregister_lutex(lutex);
- }
- lutex = next;
- }
-}
-
-/*
- * Mark LUTEX as live.
- */
-static void
-mark_lutex (lispobj tagged_lutex) {
- struct lutex *lutex = (struct lutex*) native_pointer(tagged_lutex);
-
- lutex->live = 1;
-}
-
-/*
- * Move all lutexes in generation FROM to generation TO.
- */
-static void
-move_lutexes (generation_index_t from, generation_index_t to) {
- struct lutex *tail = generations[from].lutexes;
-
- /* Nothing to move */
- if (!tail)
- return;
-
- /* Change the generation of the lutexes in FROM. */
- while (tail->next) {
- tail->gen = to;
- tail = tail->next;
- }
- tail->gen = to;
-
- /* Link the last lutex in the FROM list to the start of the TO list */
- tail->next = generations[to].lutexes;
-
- /* And vice versa */
- if (generations[to].lutexes) {
- generations[to].lutexes->prev = tail;
- }
-
- /* And update the generations structures to match this */
- generations[to].lutexes = generations[from].lutexes;
- generations[from].lutexes = NULL;
-}
-
-static long
-scav_lutex(lispobj *where, lispobj object)
-{
- mark_lutex((lispobj) where);
-
- return CEILING(sizeof(struct lutex)/sizeof(lispobj), 2);
-}
-
-static lispobj
-trans_lutex(lispobj object)
-{
- struct lutex *lutex = (struct lutex *) native_pointer(object);
- lispobj copied;
- size_t words = CEILING(sizeof(struct lutex)/sizeof(lispobj), 2);
- gc_assert(is_lisp_pointer(object));
- copied = copy_object(object, words);
-
- /* Update the links, since the lutex moved in memory. */
- if (lutex->next) {
- lutex->next->prev = (struct lutex *) native_pointer(copied);
- }
-
- if (lutex->prev) {
- lutex->prev->next = (struct lutex *) native_pointer(copied);
- } else {
- generations[lutex->gen].lutexes =
- (struct lutex *) native_pointer(copied);
- }
-
- return copied;
-}
-
-static long
-size_lutex(lispobj *where)
-{
- return CEILING(sizeof(struct lutex)/sizeof(lispobj), 2);
-}
-#endif /* LUTEX_WIDETAG */
-
\f
/*
* weak pointers
(lispobj *)pointer));
}
-/* Helper for valid_lisp_pointer_p and
- * possibly_valid_dynamic_space_pointer.
- *
- * pointer is the pointer to validate, and start_addr is the address
- * of the enclosing object.
- */
-static int
-looks_like_valid_lisp_pointer_p(lispobj *pointer, lispobj *start_addr)
-{
- if (!is_lisp_pointer((lispobj)pointer)) {
- return 0;
- }
-
- /* Check that the object pointed to is consistent with the pointer
- * low tag. */
- switch (lowtag_of((lispobj)pointer)) {
- case FUN_POINTER_LOWTAG:
- /* Start_addr should be the enclosing code object, or a closure
- * header. */
- switch (widetag_of(*start_addr)) {
- case CODE_HEADER_WIDETAG:
- /* Make sure we actually point to a function in the code object,
- * as opposed to a random point there. */
- if (SIMPLE_FUN_HEADER_WIDETAG==widetag_of(*(pointer-FUN_POINTER_LOWTAG)))
- return 1;
- else
- return 0;
- case CLOSURE_HEADER_WIDETAG:
- case FUNCALLABLE_INSTANCE_HEADER_WIDETAG:
- if ((unsigned long)pointer !=
- ((unsigned long)start_addr+FUN_POINTER_LOWTAG)) {
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wf2: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- break;
- default:
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wf3: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- break;
- case LIST_POINTER_LOWTAG:
- if ((unsigned long)pointer !=
- ((unsigned long)start_addr+LIST_POINTER_LOWTAG)) {
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wl1: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- /* Is it plausible cons? */
- if ((is_lisp_pointer(start_addr[0]) ||
- is_lisp_immediate(start_addr[0])) &&
- (is_lisp_pointer(start_addr[1]) ||
- is_lisp_immediate(start_addr[1])))
- break;
- else {
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wl2: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- case INSTANCE_POINTER_LOWTAG:
- if ((unsigned long)pointer !=
- ((unsigned long)start_addr+INSTANCE_POINTER_LOWTAG)) {
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wi1: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- if (widetag_of(start_addr[0]) != INSTANCE_HEADER_WIDETAG) {
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wi2: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- break;
- case OTHER_POINTER_LOWTAG:
-
-#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
- /* The all-architecture test below is good as far as it goes,
- * but an LRA object is similar to a FUN-POINTER: It is
- * embedded within a CODE-OBJECT pointed to by start_addr, and
- * cannot be found by simply walking the heap, therefore we
- * need to check for it. -- AB, 2010-Jun-04 */
- if ((widetag_of(start_addr[0]) == CODE_HEADER_WIDETAG)) {
- lispobj *potential_lra =
- (lispobj *)(((unsigned long)pointer) - OTHER_POINTER_LOWTAG);
- if ((widetag_of(potential_lra[0]) == RETURN_PC_HEADER_WIDETAG) &&
- ((potential_lra - HeaderValue(potential_lra[0])) == start_addr)) {
- return 1; /* It's as good as we can verify. */
- }
- }
-#endif
-
- if ((unsigned long)pointer !=
- ((unsigned long)start_addr+OTHER_POINTER_LOWTAG)) {
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wo1: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- /* Is it plausible? Not a cons. XXX should check the headers. */
- if (is_lisp_pointer(start_addr[0]) || ((start_addr[0] & 3) == 0)) {
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wo2: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- switch (widetag_of(start_addr[0])) {
- case UNBOUND_MARKER_WIDETAG:
- case NO_TLS_VALUE_MARKER_WIDETAG:
- case CHARACTER_WIDETAG:
-#if N_WORD_BITS == 64
- case SINGLE_FLOAT_WIDETAG:
-#endif
- if (gencgc_verbose) {
- FSHOW((stderr,
- "*Wo3: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
-
- /* only pointed to by function pointers? */
- case CLOSURE_HEADER_WIDETAG:
- case FUNCALLABLE_INSTANCE_HEADER_WIDETAG:
- if (gencgc_verbose) {
- FSHOW((stderr,
- "*Wo4: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
-
- case INSTANCE_HEADER_WIDETAG:
- if (gencgc_verbose) {
- FSHOW((stderr,
- "*Wo5: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
-
- /* the valid other immediate pointer objects */
- case SIMPLE_VECTOR_WIDETAG:
- case RATIO_WIDETAG:
- case COMPLEX_WIDETAG:
-#ifdef COMPLEX_SINGLE_FLOAT_WIDETAG
- case COMPLEX_SINGLE_FLOAT_WIDETAG:
-#endif
-#ifdef COMPLEX_DOUBLE_FLOAT_WIDETAG
- case COMPLEX_DOUBLE_FLOAT_WIDETAG:
-#endif
-#ifdef COMPLEX_LONG_FLOAT_WIDETAG
- case COMPLEX_LONG_FLOAT_WIDETAG:
-#endif
- case SIMPLE_ARRAY_WIDETAG:
- case COMPLEX_BASE_STRING_WIDETAG:
-#ifdef COMPLEX_CHARACTER_STRING_WIDETAG
- case COMPLEX_CHARACTER_STRING_WIDETAG:
-#endif
- case COMPLEX_VECTOR_NIL_WIDETAG:
- case COMPLEX_BIT_VECTOR_WIDETAG:
- case COMPLEX_VECTOR_WIDETAG:
- case COMPLEX_ARRAY_WIDETAG:
- case VALUE_CELL_HEADER_WIDETAG:
- case SYMBOL_HEADER_WIDETAG:
- case FDEFN_WIDETAG:
- case CODE_HEADER_WIDETAG:
- case BIGNUM_WIDETAG:
-#if N_WORD_BITS != 64
- case SINGLE_FLOAT_WIDETAG:
-#endif
- case DOUBLE_FLOAT_WIDETAG:
-#ifdef LONG_FLOAT_WIDETAG
- case LONG_FLOAT_WIDETAG:
-#endif
- case SIMPLE_BASE_STRING_WIDETAG:
-#ifdef SIMPLE_CHARACTER_STRING_WIDETAG
- case SIMPLE_CHARACTER_STRING_WIDETAG:
-#endif
- case SIMPLE_BIT_VECTOR_WIDETAG:
- case SIMPLE_ARRAY_NIL_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_2_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_4_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_7_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_8_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_15_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_16_WIDETAG:
-#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_29_WIDETAG
- case SIMPLE_ARRAY_UNSIGNED_BYTE_29_WIDETAG:
-#endif
- case SIMPLE_ARRAY_UNSIGNED_BYTE_31_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_32_WIDETAG:
-#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_60_WIDETAG
- case SIMPLE_ARRAY_UNSIGNED_BYTE_60_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_63_WIDETAG
- case SIMPLE_ARRAY_UNSIGNED_BYTE_63_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_64_WIDETAG
- case SIMPLE_ARRAY_UNSIGNED_BYTE_64_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_8_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_8_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_61_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_61_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG:
-#endif
- case SIMPLE_ARRAY_SINGLE_FLOAT_WIDETAG:
- case SIMPLE_ARRAY_DOUBLE_FLOAT_WIDETAG:
-#ifdef SIMPLE_ARRAY_LONG_FLOAT_WIDETAG
- case SIMPLE_ARRAY_LONG_FLOAT_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_COMPLEX_SINGLE_FLOAT_WIDETAG
- case SIMPLE_ARRAY_COMPLEX_SINGLE_FLOAT_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_COMPLEX_DOUBLE_FLOAT_WIDETAG
- case SIMPLE_ARRAY_COMPLEX_DOUBLE_FLOAT_WIDETAG:
-#endif
-#ifdef SIMPLE_ARRAY_COMPLEX_LONG_FLOAT_WIDETAG
- case SIMPLE_ARRAY_COMPLEX_LONG_FLOAT_WIDETAG:
-#endif
- case SAP_WIDETAG:
- case WEAK_POINTER_WIDETAG:
-#ifdef LUTEX_WIDETAG
- case LUTEX_WIDETAG:
-#endif
- break;
-
- default:
- if (gencgc_verbose) {
- FSHOW((stderr,
- "/Wo6: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
- break;
- default:
- if (gencgc_verbose) {
- FSHOW((stderr,
- "*W?: %x %x %x\n",
- pointer, start_addr, *start_addr));
- }
- return 0;
- }
-
- /* looks good */
- return 1;
-}
-
-/* Used by the debugger to validate possibly bogus pointers before
- * calling MAKE-LISP-OBJ on them.
- *
- * FIXME: We would like to make this perfect, because if the debugger
- * constructs a reference to a bugs lisp object, and it ends up in a
- * location scavenged by the GC all hell breaks loose.
- *
- * Whereas possibly_valid_dynamic_space_pointer has to be conservative
- * and return true for all valid pointers, this could actually be eager
- * and lie about a few pointers without bad results... but that should
- * be reflected in the name.
- */
-int
-valid_lisp_pointer_p(lispobj *pointer)
-{
- lispobj *start;
- if (((start=search_dynamic_space(pointer))!=NULL) ||
- ((start=search_static_space(pointer))!=NULL) ||
- ((start=search_read_only_space(pointer))!=NULL))
- return looks_like_valid_lisp_pointer_p(pointer, start);
- else
- return 0;
-}
-
#if defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64)
/* Is there any possibility that pointer is a valid Lisp object
case SIMPLE_ARRAY_UNSIGNED_BYTE_8_WIDETAG:
case SIMPLE_ARRAY_UNSIGNED_BYTE_15_WIDETAG:
case SIMPLE_ARRAY_UNSIGNED_BYTE_16_WIDETAG:
-#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_29_WIDETAG
- case SIMPLE_ARRAY_UNSIGNED_BYTE_29_WIDETAG:
-#endif
+
+ case SIMPLE_ARRAY_UNSIGNED_FIXNUM_WIDETAG:
+
case SIMPLE_ARRAY_UNSIGNED_BYTE_31_WIDETAG:
case SIMPLE_ARRAY_UNSIGNED_BYTE_32_WIDETAG:
-#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_60_WIDETAG
- case SIMPLE_ARRAY_UNSIGNED_BYTE_60_WIDETAG:
-#endif
#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_63_WIDETAG
case SIMPLE_ARRAY_UNSIGNED_BYTE_63_WIDETAG:
#endif
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG:
#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG:
-#endif
+
+ case SIMPLE_ARRAY_FIXNUM_WIDETAG:
+
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG:
#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_61_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_61_WIDETAG:
-#endif
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG:
#endif
scavenge_generations(generation_index_t from, generation_index_t to)
{
page_index_t i;
- int num_wp = 0;
+ page_index_t num_wp = 0;
#define SC_GEN_CK 0
#if SC_GEN_CK
record_new_objects = 0;
#if SC_NS_GEN_CK
- /* Check that none of the write_protected pages in this generation
- * have been written to. */
- for (i = 0; i < page_table_pages; i++) {
- if (page_allocated_p(i)
- && (page_table[i].bytes_used != 0)
- && (page_table[i].gen == generation)
- && (page_table[i].write_protected_cleared != 0)
- && (page_table[i].dont_move == 0)) {
- lose("write protected page %d written to in scavenge_newspace_generation\ngeneration=%d dont_move=%d\n",
- i, generation, page_table[i].dont_move);
+ {
+ page_index_t i;
+ /* Check that none of the write_protected pages in this generation
+ * have been written to. */
+ for (i = 0; i < page_table_pages; i++) {
+ if (page_allocated_p(i)
+ && (page_table[i].bytes_used != 0)
+ && (page_table[i].gen == generation)
+ && (page_table[i].write_protected_cleared != 0)
+ && (page_table[i].dont_move == 0)) {
+ lose("write protected page %d written to in scavenge_newspace_generation\ngeneration=%d dont_move=%d\n",
+ i, generation, page_table[i].dont_move);
+ }
}
}
#endif
case SIMPLE_ARRAY_UNSIGNED_BYTE_8_WIDETAG:
case SIMPLE_ARRAY_UNSIGNED_BYTE_15_WIDETAG:
case SIMPLE_ARRAY_UNSIGNED_BYTE_16_WIDETAG:
-#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_29_WIDETAG
- case SIMPLE_ARRAY_UNSIGNED_BYTE_29_WIDETAG:
-#endif
+
+ case SIMPLE_ARRAY_UNSIGNED_FIXNUM_WIDETAG:
+
case SIMPLE_ARRAY_UNSIGNED_BYTE_31_WIDETAG:
case SIMPLE_ARRAY_UNSIGNED_BYTE_32_WIDETAG:
-#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_60_WIDETAG
- case SIMPLE_ARRAY_UNSIGNED_BYTE_60_WIDETAG:
-#endif
#ifdef SIMPLE_ARRAY_UNSIGNED_BYTE_63_WIDETAG
case SIMPLE_ARRAY_UNSIGNED_BYTE_63_WIDETAG:
#endif
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG:
#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG:
-#endif
+
+ case SIMPLE_ARRAY_FIXNUM_WIDETAG:
+
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG:
#endif
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_61_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_61_WIDETAG:
-#endif
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG:
#endif
#endif
case SAP_WIDETAG:
case WEAK_POINTER_WIDETAG:
-#ifdef LUTEX_WIDETAG
- case LUTEX_WIDETAG:
-#endif
#ifdef NO_TLS_VALUE_MARKER_WIDETAG
case NO_TLS_VALUE_MARKER_WIDETAG:
#endif
/* Initialize the weak pointer list. */
weak_pointers = NULL;
-#ifdef LUTEX_WIDETAG
- unmark_lutexes(generation);
-#endif
-
/* When a generation is not being raised it is transported to a
* temporary generation (NUM_GENERATIONS), and lowered when
* done. Set up this new generation. There should be no pages
scavenge((lispobj *) th->binding_stack_start,len);
#ifdef LISP_FEATURE_SB_THREAD
/* do the tls as well */
- len=fixnum_value(SymbolValue(FREE_TLS_INDEX,0)) -
+ len=(SymbolValue(FREE_TLS_INDEX,0) >> WORD_SHIFT) -
(sizeof (struct thread))/(sizeof (lispobj));
scavenge((lispobj *) (th+1),len);
#endif
/* As a check re-scavenge the newspace once; no new objects should
* be found. */
{
- long old_bytes_allocated = bytes_allocated;
- long bytes_allocated;
+ os_vm_size_t old_bytes_allocated = bytes_allocated;
+ os_vm_size_t bytes_allocated;
/* Start with a full scavenge. */
scavenge_newspace_generation_one_scan(new_space);
else
++generations[generation].num_gc;
-#ifdef LUTEX_WIDETAG
- reap_lutexes(generation);
- if (raise)
- move_lutexes(generation, generation+1);
-#endif
}
/* Update last_free_page, then SymbolValue(ALLOCATION_POINTER). */
}
static void
-remap_page_range (page_index_t from, page_index_t to, int forcibly)
+remap_page_range (page_index_t from, page_index_t to)
{
/* There's a mysterious Solaris/x86 problem with using mmap
* tricks for memory zeroing. See sbcl-devel thread
* "Re: patch: standalone executable redux".
- *
- * Since pages don't have to be zeroed ahead of time, only do
- * so when called from purify.
*/
#if defined(LISP_FEATURE_SUNOS)
- if (forcibly)
- zero_pages(from, to);
+ zero_and_mark_pages(from, to);
#else
- page_index_t aligned_from, aligned_end, end = to+1;
-
- const page_index_t
+ const page_index_t
release_granularity = gencgc_release_granularity/GENCGC_CARD_BYTES,
release_mask = release_granularity-1,
end = to+1,
if (aligned_from < aligned_end) {
zero_pages_with_mmap(aligned_from, aligned_end-1);
- if (forcibly) {
- if (aligned_from != from)
- zero_pages(from, aligned_from-1);
- if (aligned_end != end)
- zero_pages(aligned_end, end-1);
- }
- } else if (forcibly)
- zero_pages(from, to);
+ if (aligned_from != from)
+ zero_and_mark_pages(from, aligned_from-1);
+ if (aligned_end != end)
+ zero_and_mark_pages(aligned_end, end-1);
+ } else {
+ zero_and_mark_pages(from, to);
+ }
#endif
}
static void
remap_free_pages (page_index_t from, page_index_t to, int forcibly)
{
- page_index_t first_page, last_page,
- first_aligned_page, last_aligned_page;
+ page_index_t first_page, last_page;
if (forcibly)
- return remap_page_range(from, to, 1);
+ return remap_page_range(from, to);
- /* See comment above about mysterious failures on Solaris/x86.
- */
-#if !defined(LISP_FEATURE_SUNOS)
for (first_page = from; first_page <= to; first_page++) {
if (page_allocated_p(first_page) ||
(page_table[first_page].need_to_zero == 0))
(page_table[last_page].need_to_zero == 1))
last_page++;
- remap_page_range(first_page, last_page-1, 0);
+ remap_page_range(first_page, last_page-1);
first_page = last_page;
}
-#endif
}
generation_index_t small_generation_limit = 1;
for (page = 0; page < page_table_pages; page++) {
/* Skip free pages which should already be zero filled. */
if (page_allocated_p(page)) {
- void *page_start, *addr;
+ void *page_start;
for (last_page = page;
(last_page < page_table_pages) && page_allocated_p(last_page);
last_page++) {
generations[page].gc_trigger = 2000000;
generations[page].num_gc = 0;
generations[page].cum_sum_bytes_allocated = 0;
- generations[page].lutexes = NULL;
}
if (gencgc_verbose > 1)
page_table_pages = dynamic_space_size/GENCGC_CARD_BYTES;
gc_assert(dynamic_space_size == npage_bytes(page_table_pages));
+ /* Default nursery size to 5% of the total dynamic space size,
+ * min 1Mb. */
+ bytes_consed_between_gcs = dynamic_space_size/(os_vm_size_t)20;
+ if (bytes_consed_between_gcs < (1024*1024))
+ bytes_consed_between_gcs = 1024*1024;
+
/* The page_table must be allocated using "calloc" to initialize
* the page structures correctly. There used to be a separate
* initialization loop (now commented out; see below) but that was
scavtab[WEAK_POINTER_WIDETAG] = scav_weak_pointer;
transother[SIMPLE_ARRAY_WIDETAG] = trans_boxed_large;
-#ifdef LUTEX_WIDETAG
- scavtab[LUTEX_WIDETAG] = scav_lutex;
- transother[LUTEX_WIDETAG] = trans_lutex;
- sizetab[LUTEX_WIDETAG] = size_lutex;
-#endif
-
heap_base = (void*)DYNAMIC_SPACE_START;
/* The page structures are initialized implicitly when page_table
generations[i].num_gc = 0;
generations[i].cum_sum_bytes_allocated = 0;
/* the tune-able parameters */
- generations[i].bytes_consed_between_gc = 2000000;
+ generations[i].bytes_consed_between_gc = bytes_consed_between_gcs;
generations[i].number_of_gcs_before_promotion = 1;
generations[i].minimum_age_before_gc = 0.75;
- generations[i].lutexes = NULL;
}
/* Initialize gc_alloc. */
page++;
} while (page_address(page) < alloc_ptr);
-#ifdef LUTEX_WIDETAG
- /* Lutexes have been registered in generation 0 by coreparse, and
- * need to be moved to the right one manually.
- */
- move_lutexes(0, PSEUDO_STATIC_GENERATION);
-#endif
-
last_free_page = page;
generations[gen].bytes_allocated = npage_bytes(page);
* SB!VM:RESTART-LISP-FUNCTION */
void
gc_and_save(char *filename, boolean prepend_runtime,
- boolean save_runtime_options)
+ boolean save_runtime_options,
+ boolean compressed, int compression_level)
{
FILE *file;
void *runtime_bytes = NULL;
/* The dumper doesn't know that pages need to be zeroed before use. */
zero_all_free_pages();
save_to_filehandle(file, filename, SymbolValue(RESTART_LISP_FUNCTION,0),
- prepend_runtime, save_runtime_options);
+ prepend_runtime, save_runtime_options,
+ compressed ? compression_level : COMPRESSION_LEVEL_NONE);
/* Oops. Save still managed to fail. Since we've mangled the stack
* beyond hope, there's not much we can do.
* (beyond FUNCALLing RESTART_LISP_FUNCTION, but I suspect that's
projects / sbcl.git / blobdiff