#include <sys/types.h>
#include <stdlib.h>
#include <strings.h>
+#include <errno.h>
+#include "sbcl.h"
#include "runtime.h"
#include "os.h"
-#include "sbcl.h"
#include "globals.h"
#include "validate.h"
#include "interrupt.h"
#include "interr.h"
#include "gc.h"
#include "gc-internal.h"
+#include "thread.h"
#include "genesis/primitive-objects.h"
#include "genesis/static-symbols.h"
-
-#define PRINTNOISE
-
-#if defined(__i386__)
-/* again, what's so special about the x86 that this is differently
- * visible there than on other platforms? -dan 20010125
+#include "genesis/layout.h"
+#include "genesis/hash-table.h"
+#include "gencgc.h"
+
+/* We don't ever do purification with GENCGC as of 1.0.5.*. There was
+ * a lot of hairy and fragile ifdeffage in here to support purify on
+ * x86oids, which has now been removed. So this code can't even be
+ * compiled with GENCGC any more. -- JES, 2007-04-30.
*/
-static lispobj *dynamic_space_free_pointer;
-#endif
+#ifndef LISP_FEATURE_GENCGC
-#define gc_abort() \
- lose("GC invariant lost, file \"%s\", line %d", __FILE__, __LINE__)
+#define PRINTNOISE
-#if 1
-#define gc_assert(ex) do { \
- if (!(ex)) gc_abort(); \
-} while (0)
-#else
-#define gc_assert(ex)
-#endif
+static lispobj *dynamic_space_purify_pointer;
\f
/* These hold the original end of the read_only and static spaces so
static lispobj *read_only_free, *static_free;
-static lispobj *pscav(lispobj *addr, int nwords, boolean constant);
+static lispobj *pscav(lispobj *addr, long nwords, boolean constant);
#define LATERBLOCKSIZE 1020
#define LATERMAXCOUNT 10
struct later *next;
union {
lispobj *ptr;
- int count;
+ long count;
} u[LATERBLOCKSIZE];
} *later_blocks = NULL;
-static int later_count = 0;
-
-#define CEILING(x,y) (((x) + ((y) - 1)) & (~((y) - 1)))
-#define NWORDS(x,y) (CEILING((x),(y)) / (y))
-
-/* FIXME: Shouldn't this be defined in sbcl.h? See also notes in
- * cheneygc.c */
+static long later_count = 0;
-#ifdef sparc
-#define FUN_RAW_ADDR_OFFSET 0
-#else
-#define FUN_RAW_ADDR_OFFSET (6*sizeof(lispobj) - FUN_POINTER_LOWTAG)
+#if N_WORD_BITS == 32
+ #define SIMPLE_ARRAY_WORD_WIDETAG SIMPLE_ARRAY_UNSIGNED_BYTE_32_WIDETAG
+#elif N_WORD_BITS == 64
+ #define SIMPLE_ARRAY_WORD_WIDETAG SIMPLE_ARRAY_UNSIGNED_BYTE_64_WIDETAG
#endif
+
\f
static boolean
forwarding_pointer_p(lispobj obj)
static boolean
dynamic_pointer_p(lispobj ptr)
{
-#ifndef __i386__
return (ptr >= (lispobj)current_dynamic_space
- &&
- ptr < (lispobj)dynamic_space_free_pointer);
-#else
- /* Be more conservative, and remember, this is a maybe. */
- return (ptr >= (lispobj)DYNAMIC_SPACE_START
- &&
- ptr < (lispobj)dynamic_space_free_pointer);
-#endif
-}
-
-\f
-#ifdef __i386__
-
-#ifdef LISP_FEATURE_GENCGC
-/*
- * enhanced x86/GENCGC stack scavenging by Douglas Crosher
- *
- * Scavenging the stack on the i386 is problematic due to conservative
- * roots and raw return addresses. Here it is handled in two passes:
- * the first pass runs before any objects are moved and tries to
- * identify valid pointers and return address on the stack, the second
- * pass scavenges these.
- */
-
-static unsigned pointer_filter_verbose = 0;
-
-/* FIXME: This is substantially the same code as in gencgc.c. (There
- * are some differences, at least (1) the gencgc.c code needs to worry
- * about return addresses on the stack pinning code objects, (2) the
- * gencgc.c code needs to worry about the GC maybe happening in an
- * interrupt service routine when the main thread of control was
- * interrupted just as it had allocated memory and before it
- * initialized it, while PURIFY needn't worry about that, and (3) the
- * gencgc.c code has mutated more under maintenance since the fork
- * from CMU CL than the code here has.) The two versions should be
- * made to explicitly share common code, instead of just two different
- * cut-and-pasted versions. */
-static int
-valid_dynamic_space_pointer(lispobj *pointer, lispobj *start_addr)
-{
- /* If it's not a return address then it needs to be a valid Lisp
- * pointer. */
- 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:
- /* This case is probably caught above. */
- break;
- case CLOSURE_HEADER_WIDETAG:
- case FUNCALLABLE_INSTANCE_HEADER_WIDETAG:
- if ((int)pointer != ((int)start_addr+FUN_POINTER_LOWTAG)) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wf2: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
- }
- break;
- default:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wf3: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
- }
- break;
- case LIST_POINTER_LOWTAG:
- if ((int)pointer != ((int)start_addr+LIST_POINTER_LOWTAG)) {
- if (pointer_filter_verbose)
- fprintf(stderr,"*Wl1: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- return 0;
- }
- /* Is it plausible cons? */
- if ((is_lisp_pointer(start_addr[0])
- || ((start_addr[0] & 3) == 0) /* fixnum */
- || (widetag_of(start_addr[0]) == BASE_CHAR_WIDETAG)
- || (widetag_of(start_addr[0]) == UNBOUND_MARKER_WIDETAG))
- && (is_lisp_pointer(start_addr[1])
- || ((start_addr[1] & 3) == 0) /* fixnum */
- || (widetag_of(start_addr[1]) == BASE_CHAR_WIDETAG)
- || (widetag_of(start_addr[1]) == UNBOUND_MARKER_WIDETAG))) {
- break;
- } else {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wl2: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
- }
- case INSTANCE_POINTER_LOWTAG:
- if ((int)pointer != ((int)start_addr+INSTANCE_POINTER_LOWTAG)) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wi1: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
- }
- if (widetag_of(start_addr[0]) != INSTANCE_HEADER_WIDETAG) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wi2: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
- }
- break;
- case OTHER_POINTER_LOWTAG:
- if ((int)pointer != ((int)start_addr+OTHER_POINTER_LOWTAG)) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo1: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) 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 (pointer_filter_verbose) {
- fprintf(stderr,"*Wo2: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
- }
- switch (widetag_of(start_addr[0])) {
- case UNBOUND_MARKER_WIDETAG:
- case BASE_CHAR_WIDETAG:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo3: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
-
- /* only pointed to by function pointers? */
- case CLOSURE_HEADER_WIDETAG:
- case FUNCALLABLE_INSTANCE_HEADER_WIDETAG:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo4: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
-
- case INSTANCE_HEADER_WIDETAG:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo5: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) 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_STRING_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:
- case SINGLE_FLOAT_WIDETAG:
- case DOUBLE_FLOAT_WIDETAG:
-#ifdef LONG_FLOAT_WIDETAG
- case LONG_FLOAT_WIDETAG:
-#endif
- case SIMPLE_STRING_WIDETAG:
- case SIMPLE_BIT_VECTOR_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_2_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_4_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_8_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_16_WIDETAG:
- case SIMPLE_ARRAY_UNSIGNED_BYTE_32_WIDETAG:
-#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
- 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:
- break;
-
- default:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo6: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
- }
- break;
- default:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*W?: %x %x %x\n", (unsigned int) pointer,
- (unsigned int) start_addr, *start_addr);
- }
- return 0;
- }
-
- /* looks good */
- return 1;
-}
-
-#define MAX_STACK_POINTERS 256
-lispobj *valid_stack_locations[MAX_STACK_POINTERS];
-unsigned int num_valid_stack_locations;
-
-#define MAX_STACK_RETURN_ADDRESSES 128
-lispobj *valid_stack_ra_locations[MAX_STACK_RETURN_ADDRESSES];
-lispobj *valid_stack_ra_code_objects[MAX_STACK_RETURN_ADDRESSES];
-unsigned int num_valid_stack_ra_locations;
-
-/* Identify valid stack slots. */
-static void
-setup_i386_stack_scav(lispobj *lowaddr, lispobj *base)
-{
- lispobj *sp = lowaddr;
- num_valid_stack_locations = 0;
- num_valid_stack_ra_locations = 0;
- for (sp = lowaddr; sp < base; sp++) {
- lispobj thing = *sp;
- /* Find the object start address */
- lispobj *start_addr = search_dynamic_space((void *)thing);
- if (start_addr) {
- /* We need to allow raw pointers into Code objects for
- * return addresses. This will also pick up pointers to
- * functions in code objects. */
- if (widetag_of(*start_addr) == CODE_HEADER_WIDETAG) {
- /* FIXME asserting here is a really dumb thing to do.
- * If we've overflowed some arbitrary static limit, we
- * should just refuse to purify, instead of killing
- * the whole lisp session
- */
- gc_assert(num_valid_stack_ra_locations <
- MAX_STACK_RETURN_ADDRESSES);
- valid_stack_ra_locations[num_valid_stack_ra_locations] = sp;
- valid_stack_ra_code_objects[num_valid_stack_ra_locations++] =
- (lispobj *)((int)start_addr + OTHER_POINTER_LOWTAG);
- } else {
- if (valid_dynamic_space_pointer((void *)thing, start_addr)) {
- gc_assert(num_valid_stack_locations < MAX_STACK_POINTERS);
- valid_stack_locations[num_valid_stack_locations++] = sp;
- }
- }
- }
- }
- if (pointer_filter_verbose) {
- fprintf(stderr, "number of valid stack pointers = %d\n",
- num_valid_stack_locations);
- fprintf(stderr, "number of stack return addresses = %d\n",
- num_valid_stack_ra_locations);
- }
+ &&
+ ptr < (lispobj)dynamic_space_purify_pointer);
}
-static void
-pscav_i386_stack(void)
+static inline lispobj *
+newspace_alloc(long nwords, int constantp)
{
- int i;
-
- for (i = 0; i < num_valid_stack_locations; i++)
- pscav(valid_stack_locations[i], 1, 0);
-
- for (i = 0; i < num_valid_stack_ra_locations; i++) {
- lispobj code_obj = (lispobj)valid_stack_ra_code_objects[i];
- pscav(&code_obj, 1, 0);
- if (pointer_filter_verbose) {
- fprintf(stderr,"*C moved RA %x to %x; for code object %x to %x\n",
- *valid_stack_ra_locations[i],
- (int)(*valid_stack_ra_locations[i])
- - ((int)valid_stack_ra_code_objects[i] - (int)code_obj),
- (unsigned int) valid_stack_ra_code_objects[i], code_obj);
- }
- *valid_stack_ra_locations[i] =
- ((int)(*valid_stack_ra_locations[i])
- - ((int)valid_stack_ra_code_objects[i] - (int)code_obj));
+ lispobj *ret;
+ nwords=CEILING(nwords,2);
+ if(constantp) {
+ if(read_only_free + nwords >= (lispobj *)READ_ONLY_SPACE_END) {
+ lose("Ran out of read-only space while purifying!\n");
+ }
+ ret=read_only_free;
+ read_only_free+=nwords;
+ } else {
+ if(static_free + nwords >= (lispobj *)STATIC_SPACE_END) {
+ lose("Ran out of static space while purifying!\n");
+ }
+ ret=static_free;
+ static_free+=nwords;
}
+ return ret;
}
-#endif
-#endif
\f
static void
-pscav_later(lispobj *where, int count)
+pscav_later(lispobj *where, long count)
{
struct later *new;
static lispobj
ptrans_boxed(lispobj thing, lispobj header, boolean constant)
{
- int nwords;
+ long nwords;
lispobj result, *new, *old;
- nwords = 1 + HeaderValue(header);
+ nwords = CEILING(1 + HeaderValue(header), 2);
/* Allocate it */
old = (lispobj *)native_pointer(thing);
- if (constant) {
- new = read_only_free;
- read_only_free += CEILING(nwords, 2);
- }
- else {
- new = static_free;
- static_free += CEILING(nwords, 2);
- }
+ new = newspace_alloc(nwords,constant);
/* Copy it. */
bcopy(old, new, nwords * sizeof(lispobj));
* class, and only then can we transport as constant. If it is pure,
* we can ALWAYS transport as a constant. */
static lispobj
-ptrans_instance(lispobj thing, lispobj header, boolean constant)
+ptrans_instance(lispobj thing, lispobj header, boolean /* ignored */ constant)
{
- lispobj layout = ((struct instance *)native_pointer(thing))->slots[0];
- lispobj pure = ((struct instance *)native_pointer(layout))->slots[15];
+ struct layout *layout =
+ (struct layout *) native_pointer(((struct instance *)native_pointer(thing))->slots[0]);
+ lispobj pure = layout->pure;
switch (pure) {
case T:
- return (ptrans_boxed(thing, header, 1));
+ return (ptrans_boxed(thing, header, 1));
case NIL:
- return (ptrans_boxed(thing, header, 0));
+ return (ptrans_boxed(thing, header, 0));
case 0:
- {
- /* Substructure: special case for the COMPACT-INFO-ENVs,
- * where the instance may have a point to the dynamic
- * space placed into it (e.g. the cache-name slot), but
- * the lists and arrays at the time of a purify can be
- * moved to the RO space. */
- int nwords;
- lispobj result, *new, *old;
-
- nwords = 1 + HeaderValue(header);
-
- /* Allocate it */
- old = (lispobj *)native_pointer(thing);
- new = static_free;
- static_free += CEILING(nwords, 2);
-
- /* Copy it. */
- bcopy(old, new, nwords * sizeof(lispobj));
-
- /* Deposit forwarding pointer. */
- result = make_lispobj(new, lowtag_of(thing));
- *old = result;
-
- /* Scavenge it. */
- pscav(new, nwords, 1);
-
- return result;
- }
+ {
+ /* Substructure: special case for the COMPACT-INFO-ENVs,
+ * where the instance may have a point to the dynamic
+ * space placed into it (e.g. the cache-name slot), but
+ * the lists and arrays at the time of a purify can be
+ * moved to the RO space. */
+ long nwords;
+ lispobj result, *new, *old;
+
+ nwords = CEILING(1 + HeaderValue(header), 2);
+
+ /* Allocate it */
+ old = (lispobj *)native_pointer(thing);
+ new = newspace_alloc(nwords, 0); /* inconstant */
+
+ /* Copy it. */
+ bcopy(old, new, nwords * sizeof(lispobj));
+
+ /* Deposit forwarding pointer. */
+ result = make_lispobj(new, lowtag_of(thing));
+ *old = result;
+
+ /* Scavenge it. */
+ pscav(new, nwords, 1);
+
+ return result;
+ }
default:
- gc_abort();
- return NIL; /* dummy value: return something ... */
+ gc_abort();
+ return NIL; /* dummy value: return something ... */
}
}
static lispobj
ptrans_fdefn(lispobj thing, lispobj header)
{
- int nwords;
+ long nwords;
lispobj result, *new, *old, oldfn;
struct fdefn *fdefn;
- nwords = 1 + HeaderValue(header);
+ nwords = CEILING(1 + HeaderValue(header), 2);
/* Allocate it */
old = (lispobj *)native_pointer(thing);
- new = static_free;
- static_free += CEILING(nwords, 2);
+ new = newspace_alloc(nwords, 0); /* inconstant */
/* Copy it. */
bcopy(old, new, nwords * sizeof(lispobj));
static lispobj
ptrans_unboxed(lispobj thing, lispobj header)
{
- int nwords;
+ long nwords;
lispobj result, *new, *old;
-
- nwords = 1 + HeaderValue(header);
-
+
+ nwords = CEILING(1 + HeaderValue(header), 2);
+
/* Allocate it */
old = (lispobj *)native_pointer(thing);
- new = read_only_free;
- read_only_free += CEILING(nwords, 2);
-
- /* Copy it. */
+ new = newspace_alloc(nwords,1); /* always constant */
+
+ /* copy it. */
bcopy(old, new, nwords * sizeof(lispobj));
-
+
/* Deposit forwarding pointer. */
result = make_lispobj(new , lowtag_of(thing));
*old = result;
}
static lispobj
-ptrans_vector(lispobj thing, int bits, int extra,
- boolean boxed, boolean constant)
+ptrans_vector(lispobj thing, long bits, long extra,
+ boolean boxed, boolean constant)
{
struct vector *vector;
- int nwords;
+ long nwords;
lispobj result, *new;
+ long length;
vector = (struct vector *)native_pointer(thing);
- nwords = 2 + (CEILING((fixnum_value(vector->length)+extra)*bits,32)>>5);
-
- if (boxed && !constant) {
- new = static_free;
- static_free += CEILING(nwords, 2);
- }
- else {
- new = read_only_free;
- read_only_free += CEILING(nwords, 2);
+ length = fixnum_value(vector->length)+extra;
+ // Argh, handle simple-vector-nil separately.
+ if (bits == 0) {
+ nwords = 2;
+ } else {
+ nwords = CEILING(NWORDS(length, bits) + 2, 2);
}
+ new=newspace_alloc(nwords, (constant || !boxed));
bcopy(vector, new, nwords * sizeof(lispobj));
result = make_lispobj(new, lowtag_of(thing));
return result;
}
-#ifdef __i386__
-static void
-apply_code_fixups_during_purify(struct code *old_code, struct code *new_code)
-{
- int nheader_words, ncode_words, nwords;
- void *constants_start_addr, *constants_end_addr;
- void *code_start_addr, *code_end_addr;
- lispobj fixups = NIL;
- unsigned displacement = (unsigned)new_code - (unsigned)old_code;
- struct vector *fixups_vector;
-
- ncode_words = fixnum_value(new_code->code_size);
- nheader_words = HeaderValue(*(lispobj *)new_code);
- nwords = ncode_words + nheader_words;
-
- constants_start_addr = (void *)new_code + 5*4;
- constants_end_addr = (void *)new_code + nheader_words*4;
- code_start_addr = (void *)new_code + nheader_words*4;
- code_end_addr = (void *)new_code + nwords*4;
-
- /* The first constant should be a pointer to the fixups for this
- * code objects. Check. */
- fixups = new_code->constants[0];
-
- /* It will be 0 or the unbound-marker if there are no fixups, and
- * will be an other-pointer to a vector if it is valid. */
- if ((fixups==0) ||
- (fixups==UNBOUND_MARKER_WIDETAG) ||
- !is_lisp_pointer(fixups)) {
-#ifdef LISP_FEATURE_GENCGC
- /* Check for a possible errors. */
- sniff_code_object(new_code,displacement);
-#endif
- return;
- }
-
- fixups_vector = (struct vector *)native_pointer(fixups);
-
- /* Could be pointing to a forwarding pointer. */
- if (is_lisp_pointer(fixups) && (dynamic_pointer_p(fixups))
- && forwarding_pointer_p(*(lispobj *)fixups_vector)) {
- /* If so then follow it. */
- fixups_vector =
- (struct vector *)native_pointer(*(lispobj *)fixups_vector);
- }
-
- if (widetag_of(fixups_vector->header) ==
- SIMPLE_ARRAY_UNSIGNED_BYTE_32_WIDETAG) {
- /* We got the fixups for the code block. Now work through the
- * vector, and apply a fixup at each address. */
- int length = fixnum_value(fixups_vector->length);
- int i;
- for (i=0; i<length; i++) {
- unsigned offset = fixups_vector->data[i];
- /* Now check the current value of offset. */
- unsigned old_value =
- *(unsigned *)((unsigned)code_start_addr + offset);
-
- /* If it's within the old_code object then it must be an
- * absolute fixup (relative ones are not saved) */
- if ((old_value>=(unsigned)old_code)
- && (old_value<((unsigned)old_code + nwords*4)))
- /* So add the dispacement. */
- *(unsigned *)((unsigned)code_start_addr + offset) = old_value
- + displacement;
- else
- /* It is outside the old code object so it must be a relative
- * fixup (absolute fixups are not saved). So subtract the
- * displacement. */
- *(unsigned *)((unsigned)code_start_addr + offset) = old_value
- - displacement;
- }
- }
-
- /* No longer need the fixups. */
- new_code->constants[0] = 0;
-
-#ifdef LISP_FEATURE_GENCGC
- /* Check for possible errors. */
- sniff_code_object(new_code,displacement);
-#endif
-}
-#endif
-
static lispobj
ptrans_code(lispobj thing)
{
struct code *code, *new;
- int nwords;
+ long nwords;
lispobj func, result;
code = (struct code *)native_pointer(thing);
- nwords = HeaderValue(code->header) + fixnum_value(code->code_size);
+ nwords = CEILING(HeaderValue(code->header) + fixnum_value(code->code_size),
+ 2);
- new = (struct code *)read_only_free;
- read_only_free += CEILING(nwords, 2);
+ new = (struct code *)newspace_alloc(nwords,1); /* constant */
bcopy(code, new, nwords * sizeof(lispobj));
-#ifdef LISP_FEATURE_X86
- apply_code_fixups_during_purify(code,new);
-#endif
-
result = make_lispobj(new, OTHER_POINTER_LOWTAG);
/* Stick in a forwarding pointer for the code object. */
/* Arrange to scavenge the debug info later. */
pscav_later(&new->debug_info, 1);
- if (new->trace_table_offset & 0x3)
+ /* FIXME: why would this be a fixnum? */
+ /* "why" is a hard word, but apparently for compiled functions the
+ trace_table_offset contains the length of the instructions, as
+ a fixnum. See CODE-INST-AREA-LENGTH in
+ src/compiler/target-disassem.lisp. -- CSR, 2004-01-08 */
+ if (!(fixnump(new->trace_table_offset)))
#if 0
- pscav(&new->trace_table_offset, 1, 0);
+ pscav(&new->trace_table_offset, 1, 0);
#else
- new->trace_table_offset = NIL; /* limit lifetime */
+ new->trace_table_offset = NIL; /* limit lifetime */
#endif
/* Scavenge the constants. */
gc_assert(lowtag_of(func) == FUN_POINTER_LOWTAG);
gc_assert(!dynamic_pointer_p(func));
-#ifdef __i386__
- /* Temporarly convert the self pointer to a real function pointer. */
- ((struct simple_fun *)native_pointer(func))->self
- -= FUN_RAW_ADDR_OFFSET;
-#endif
pscav(&((struct simple_fun *)native_pointer(func))->self, 2, 1);
-#ifdef __i386__
- ((struct simple_fun *)native_pointer(func))->self
- += FUN_RAW_ADDR_OFFSET;
-#endif
- pscav_later(&((struct simple_fun *)native_pointer(func))->name, 3);
+ pscav_later(&((struct simple_fun *)native_pointer(func))->name, 4);
}
return result;
static lispobj
ptrans_func(lispobj thing, lispobj header)
{
- int nwords;
+ long nwords;
lispobj code, *new, *old, result;
struct simple_fun *function;
* Otherwise we have to do something strange, 'cause it is buried
* inside a code object. */
- if (widetag_of(header) == SIMPLE_FUN_HEADER_WIDETAG ||
- widetag_of(header) == CLOSURE_FUN_HEADER_WIDETAG) {
+ if (widetag_of(header) == SIMPLE_FUN_HEADER_WIDETAG) {
- /* We can only end up here if the code object has not been
+ /* We can only end up here if the code object has not been
* scavenged, because if it had been scavenged, forwarding pointers
* would have been left behind for all the entry points. */
function = (struct simple_fun *)native_pointer(thing);
code =
- make_lispobj
- ((native_pointer(thing) -
- (HeaderValue(function->header))), OTHER_POINTER_LOWTAG);
-
- /* This will cause the function's header to be replaced with a
+ make_lispobj
+ ((native_pointer(thing) -
+ (HeaderValue(function->header))), OTHER_POINTER_LOWTAG);
+
+ /* This will cause the function's header to be replaced with a
* forwarding pointer. */
ptrans_code(code);
return function->header;
}
else {
- /* It's some kind of closure-like thing. */
- nwords = 1 + HeaderValue(header);
+ /* It's some kind of closure-like thing. */
+ nwords = CEILING(1 + HeaderValue(header), 2);
old = (lispobj *)native_pointer(thing);
- /* Allocate the new one. */
- if (widetag_of(header) == FUNCALLABLE_INSTANCE_HEADER_WIDETAG) {
- /* FINs *must* not go in read_only space. */
- new = static_free;
- static_free += CEILING(nwords, 2);
- }
- else {
- /* Closures can always go in read-only space, 'cause they
- * never change. */
-
- new = read_only_free;
- read_only_free += CEILING(nwords, 2);
- }
+ /* Allocate the new one. FINs *must* not go in read_only
+ * space. Closures can; they never change */
+
+ new = newspace_alloc
+ (nwords,(widetag_of(header)!=FUNCALLABLE_INSTANCE_HEADER_WIDETAG));
+
/* Copy it. */
bcopy(old, new, nwords * sizeof(lispobj));
ptrans_list(lispobj thing, boolean constant)
{
struct cons *old, *new, *orig;
- int length;
+ long length;
- if (constant)
- orig = (struct cons *)read_only_free;
- else
- orig = (struct cons *)static_free;
+ orig = (struct cons *) newspace_alloc(0,constant);
length = 0;
do {
/* Allocate a new cons cell. */
old = (struct cons *)native_pointer(thing);
- if (constant) {
- new = (struct cons *)read_only_free;
- read_only_free += WORDS_PER_CONS;
- }
- else {
- new = (struct cons *)static_free;
- static_free += WORDS_PER_CONS;
- }
+ new = (struct cons *) newspace_alloc(WORDS_PER_CONS,constant);
/* Copy the cons cell and keep a pointer to the cdr. */
new->car = old->car;
ptrans_otherptr(lispobj thing, lispobj header, boolean constant)
{
switch (widetag_of(header)) {
+ /* FIXME: this needs a reindent */
case BIGNUM_WIDETAG:
case SINGLE_FLOAT_WIDETAG:
case DOUBLE_FLOAT_WIDETAG:
case COMPLEX_LONG_FLOAT_WIDETAG:
#endif
case SAP_WIDETAG:
- return ptrans_unboxed(thing, header);
-
+ return ptrans_unboxed(thing, header);
case RATIO_WIDETAG:
case COMPLEX_WIDETAG:
case SIMPLE_ARRAY_WIDETAG:
- case COMPLEX_STRING_WIDETAG:
+ case COMPLEX_BASE_STRING_WIDETAG:
+#ifdef COMPLEX_CHARACTER_STRING_WIDETAG
+ case COMPLEX_CHARACTER_STRING_WIDETAG:
+#endif
+ case COMPLEX_BIT_VECTOR_WIDETAG:
+ case COMPLEX_VECTOR_NIL_WIDETAG:
case COMPLEX_VECTOR_WIDETAG:
case COMPLEX_ARRAY_WIDETAG:
return ptrans_boxed(thing, header, constant);
-
+
case VALUE_CELL_HEADER_WIDETAG:
case WEAK_POINTER_WIDETAG:
return ptrans_boxed(thing, header, 0);
case SYMBOL_HEADER_WIDETAG:
return ptrans_boxed(thing, header, 0);
- case SIMPLE_STRING_WIDETAG:
+ case SIMPLE_ARRAY_NIL_WIDETAG:
+ return ptrans_vector(thing, 0, 0, 0, constant);
+
+ case SIMPLE_BASE_STRING_WIDETAG:
return ptrans_vector(thing, 8, 1, 0, constant);
+#ifdef SIMPLE_CHARACTER_STRING_WIDETAG
+ case SIMPLE_CHARACTER_STRING_WIDETAG:
+ return ptrans_vector(thing, 32, 1, 0, constant);
+#endif
+
case SIMPLE_BIT_VECTOR_WIDETAG:
return ptrans_vector(thing, 1, 0, 0, constant);
case SIMPLE_VECTOR_WIDETAG:
- return ptrans_vector(thing, 32, 0, 1, constant);
+ return ptrans_vector(thing, N_WORD_BITS, 0, 1, constant);
case SIMPLE_ARRAY_UNSIGNED_BYTE_2_WIDETAG:
return ptrans_vector(thing, 2, 0, 0, constant);
case SIMPLE_ARRAY_UNSIGNED_BYTE_8_WIDETAG:
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_8_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_8_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_BYTE_7_WIDETAG:
#endif
return ptrans_vector(thing, 8, 0, 0, constant);
case SIMPLE_ARRAY_UNSIGNED_BYTE_16_WIDETAG:
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_BYTE_15_WIDETAG:
#endif
return ptrans_vector(thing, 16, 0, 0, constant);
case SIMPLE_ARRAY_UNSIGNED_BYTE_32_WIDETAG:
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG:
-#endif
+ case SIMPLE_ARRAY_FIXNUM_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_FIXNUM_WIDETAG:
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_BYTE_31_WIDETAG:
#endif
return ptrans_vector(thing, 32, 0, 0, constant);
+#if N_WORD_BITS == 64
+#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_64_WIDETAG
+ case SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG:
+#endif
+ return ptrans_vector(thing, 64, 0, 0, constant);
+#endif
+
case SIMPLE_ARRAY_SINGLE_FLOAT_WIDETAG:
return ptrans_vector(thing, 32, 0, 0, constant);
#ifdef SIMPLE_ARRAY_LONG_FLOAT_WIDETAG
case SIMPLE_ARRAY_LONG_FLOAT_WIDETAG:
-#ifdef __i386__
- return ptrans_vector(thing, 96, 0, 0, constant);
-#endif
-#ifdef sparc
+#ifdef LISP_FEATURE_SPARC
return ptrans_vector(thing, 128, 0, 0, constant);
#endif
#endif
#ifdef SIMPLE_ARRAY_COMPLEX_LONG_FLOAT_WIDETAG
case SIMPLE_ARRAY_COMPLEX_LONG_FLOAT_WIDETAG:
-#ifdef __i386__
- return ptrans_vector(thing, 192, 0, 0, constant);
-#endif
-#ifdef sparc
+#ifdef LISP_FEATURE_SPARC
return ptrans_vector(thing, 256, 0, 0, constant);
#endif
#endif
return ptrans_returnpc(thing, header);
case FDEFN_WIDETAG:
- return ptrans_fdefn(thing, header);
+ return ptrans_fdefn(thing, header);
default:
+ fprintf(stderr, "Invalid widetag: %d\n", widetag_of(header));
/* Should only come across other pointers to the above stuff. */
gc_abort();
- return NIL;
+ return NIL;
}
}
-static int
+static long
pscav_fdefn(struct fdefn *fdefn)
{
boolean fix_func;
return sizeof(struct fdefn) / sizeof(lispobj);
}
-#ifdef __i386__
-/* now putting code objects in static space */
-static int
-pscav_code(struct code*code)
-{
- int nwords;
- lispobj func;
- nwords = HeaderValue(code->header) + fixnum_value(code->code_size);
-
- /* Arrange to scavenge the debug info later. */
- pscav_later(&code->debug_info, 1);
-
- /* Scavenge the constants. */
- pscav(code->constants, HeaderValue(code->header)-5, 1);
-
- /* Scavenge all the functions. */
- pscav(&code->entry_points, 1, 1);
- for (func = code->entry_points;
- func != NIL;
- func = ((struct simple_fun *)native_pointer(func))->next) {
- gc_assert(lowtag_of(func) == FUN_POINTER_LOWTAG);
- gc_assert(!dynamic_pointer_p(func));
-
-#ifdef __i386__
- /* Temporarly convert the self pointer to a real function
- * pointer. */
- ((struct simple_fun *)native_pointer(func))->self
- -= FUN_RAW_ADDR_OFFSET;
-#endif
- pscav(&((struct simple_fun *)native_pointer(func))->self, 2, 1);
-#ifdef __i386__
- ((struct simple_fun *)native_pointer(func))->self
- += FUN_RAW_ADDR_OFFSET;
-#endif
- pscav_later(&((struct simple_fun *)native_pointer(func))->name, 3);
- }
-
- return CEILING(nwords,2);
-}
-#endif
-
static lispobj *
-pscav(lispobj *addr, int nwords, boolean constant)
+pscav(lispobj *addr, long nwords, boolean constant)
{
lispobj thing, *thingp, header;
- int count = 0; /* (0 = dummy init value to stop GCC warning) */
+ long count = 0; /* (0 = dummy init value to stop GCC warning) */
struct vector *vector;
while (nwords > 0) {
/* It's a pointer. Is it something we might have to move? */
if (dynamic_pointer_p(thing)) {
/* Maybe. Have we already moved it? */
- thingp = (lispobj *)native_pointer(thing);
+ thingp = (lispobj *)native_pointer(thing);
header = *thingp;
if (is_lisp_pointer(header) && forwarding_pointer_p(header))
/* Yep, so just copy the forwarding pointer. */
}
count = 1;
}
- else if (thing & 3) {
+#if N_WORD_BITS == 64
+ else if (widetag_of(thing) == SINGLE_FLOAT_WIDETAG) {
+ count = 1;
+ }
+#endif
+ else if (thing & FIXNUM_TAG_MASK) {
/* It's an other immediate. Maybe the header for an unboxed */
/* object. */
switch (widetag_of(thing)) {
#endif
case SAP_WIDETAG:
/* It's an unboxed simple object. */
- count = HeaderValue(thing)+1;
+ count = CEILING(HeaderValue(thing)+1, 2);
break;
case SIMPLE_VECTOR_WIDETAG:
- if (HeaderValue(thing) == subtype_VectorValidHashing) {
- *addr = (subtype_VectorMustRehash << N_WIDETAG_BITS) |
- SIMPLE_VECTOR_WIDETAG;
- }
- count = 1;
+ if (HeaderValue(thing) == subtype_VectorValidHashing) {
+ struct hash_table *hash_table =
+ (struct hash_table *)native_pointer(addr[2]);
+ hash_table->needs_rehash_p = T;
+ }
+ count = 2;
+ break;
+
+ case SIMPLE_ARRAY_NIL_WIDETAG:
+ count = 2;
break;
- case SIMPLE_STRING_WIDETAG:
+ case SIMPLE_BASE_STRING_WIDETAG:
vector = (struct vector *)addr;
- count = CEILING(NWORDS(fixnum_value(vector->length)+1,4)+2,2);
+ count = CEILING(NWORDS(fixnum_value(vector->length)+1,8)+2,2);
break;
+#ifdef SIMPLE_CHARACTER_STRING_WIDETAG
+ case SIMPLE_CHARACTER_STRING_WIDETAG:
+ vector = (struct vector *)addr;
+ count = CEILING(NWORDS(fixnum_value(vector->length)+1,32)+2,2);
+ break;
+#endif
+
case SIMPLE_BIT_VECTOR_WIDETAG:
vector = (struct vector *)addr;
- count = CEILING(NWORDS(fixnum_value(vector->length),32)+2,2);
+ count = CEILING(NWORDS(fixnum_value(vector->length),1)+2,2);
break;
case SIMPLE_ARRAY_UNSIGNED_BYTE_2_WIDETAG:
vector = (struct vector *)addr;
- count = CEILING(NWORDS(fixnum_value(vector->length),16)+2,2);
+ count = CEILING(NWORDS(fixnum_value(vector->length),2)+2,2);
break;
case SIMPLE_ARRAY_UNSIGNED_BYTE_4_WIDETAG:
vector = (struct vector *)addr;
- count = CEILING(NWORDS(fixnum_value(vector->length),8)+2,2);
+ count = CEILING(NWORDS(fixnum_value(vector->length),4)+2,2);
break;
case SIMPLE_ARRAY_UNSIGNED_BYTE_8_WIDETAG:
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_8_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_8_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_BYTE_7_WIDETAG:
#endif
vector = (struct vector *)addr;
- count = CEILING(NWORDS(fixnum_value(vector->length),4)+2,2);
+ count = CEILING(NWORDS(fixnum_value(vector->length),8)+2,2);
break;
case SIMPLE_ARRAY_UNSIGNED_BYTE_16_WIDETAG:
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_16_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_BYTE_15_WIDETAG:
#endif
vector = (struct vector *)addr;
- count = CEILING(NWORDS(fixnum_value(vector->length),2)+2,2);
+ count = CEILING(NWORDS(fixnum_value(vector->length),16)+2,2);
break;
case SIMPLE_ARRAY_UNSIGNED_BYTE_32_WIDETAG:
-#ifdef SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG
- case SIMPLE_ARRAY_SIGNED_BYTE_30_WIDETAG:
-#endif
+
+ case SIMPLE_ARRAY_FIXNUM_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_FIXNUM_WIDETAG:
+
#ifdef SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG
case SIMPLE_ARRAY_SIGNED_BYTE_32_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_BYTE_31_WIDETAG:
#endif
vector = (struct vector *)addr;
- count = CEILING(fixnum_value(vector->length)+2,2);
+ count = CEILING(NWORDS(fixnum_value(vector->length),32)+2,2);
break;
+#if N_WORD_BITS == 64
+ case SIMPLE_ARRAY_UNSIGNED_BYTE_64_WIDETAG:
+#ifdef SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG
+ case SIMPLE_ARRAY_SIGNED_BYTE_64_WIDETAG:
+ case SIMPLE_ARRAY_UNSIGNED_BYTE_63_WIDETAG:
+#endif
+ vector = (struct vector *)addr;
+ count = CEILING(NWORDS(fixnum_value(vector->length),64)+2,2);
+ break;
+#endif
+
case SIMPLE_ARRAY_SINGLE_FLOAT_WIDETAG:
vector = (struct vector *)addr;
- count = CEILING(fixnum_value(vector->length)+2,2);
+ count = CEILING(NWORDS(fixnum_value(vector->length), 32) + 2,
+ 2);
break;
case SIMPLE_ARRAY_DOUBLE_FLOAT_WIDETAG:
case SIMPLE_ARRAY_COMPLEX_SINGLE_FLOAT_WIDETAG:
#endif
vector = (struct vector *)addr;
- count = fixnum_value(vector->length)*2+2;
+ count = CEILING(NWORDS(fixnum_value(vector->length), 64) + 2,
+ 2);
break;
#ifdef SIMPLE_ARRAY_LONG_FLOAT_WIDETAG
case SIMPLE_ARRAY_LONG_FLOAT_WIDETAG:
vector = (struct vector *)addr;
-#ifdef __i386__
- count = fixnum_value(vector->length)*3+2;
-#endif
-#ifdef sparc
+#ifdef LISP_FEATURE_SPARC
count = fixnum_value(vector->length)*4+2;
#endif
break;
#ifdef SIMPLE_ARRAY_COMPLEX_DOUBLE_FLOAT_WIDETAG
case SIMPLE_ARRAY_COMPLEX_DOUBLE_FLOAT_WIDETAG:
vector = (struct vector *)addr;
- count = fixnum_value(vector->length)*4+2;
+ count = CEILING(NWORDS(fixnum_value(vector->length), 128) + 2,
+ 2);
break;
#endif
#ifdef SIMPLE_ARRAY_COMPLEX_LONG_FLOAT_WIDETAG
case SIMPLE_ARRAY_COMPLEX_LONG_FLOAT_WIDETAG:
vector = (struct vector *)addr;
-#ifdef __i386__
- count = fixnum_value(vector->length)*6+2;
-#endif
-#ifdef sparc
+#ifdef LISP_FEATURE_SPARC
count = fixnum_value(vector->length)*8+2;
#endif
break;
#endif
case CODE_HEADER_WIDETAG:
-#ifndef __i386__
gc_abort(); /* no code headers in static space */
-#else
- count = pscav_code((struct code*)addr);
-#endif
break;
case SIMPLE_FUN_HEADER_WIDETAG:
- case CLOSURE_FUN_HEADER_WIDETAG:
case RETURN_PC_HEADER_WIDETAG:
/* We should never hit any of these, 'cause they occur
* buried in the middle of code objects. */
gc_abort();
- break;
-
-#ifdef __i386__
- case CLOSURE_HEADER_WIDETAG:
- case FUNCALLABLE_INSTANCE_HEADER_WIDETAG:
- /* The function self pointer needs special care on the
- * x86 because it is the real entry point. */
- {
- lispobj fun = ((struct closure *)addr)->fun
- - FUN_RAW_ADDR_OFFSET;
- pscav(&fun, 1, constant);
- ((struct closure *)addr)->fun = fun + FUN_RAW_ADDR_OFFSET;
- }
- count = 2;
- break;
-#endif
+ break;
case WEAK_POINTER_WIDETAG:
/* Weak pointers get preserved during purify, 'cause I
- * don't feel like figuring out how to break them. */
+ * don't feel like figuring out how to break them. */
pscav(addr+1, 2, constant);
count = 4;
break;
- case FDEFN_WIDETAG:
- /* We have to handle fdefn objects specially, so we
- * can fix up the raw function address. */
- count = pscav_fdefn((struct fdefn *)addr);
- break;
+ case FDEFN_WIDETAG:
+ /* We have to handle fdefn objects specially, so we
+ * can fix up the raw function address. */
+ count = pscav_fdefn((struct fdefn *)addr);
+ break;
+
+ case INSTANCE_HEADER_WIDETAG:
+ {
+ struct instance *instance = (struct instance *) addr;
+ struct layout *layout
+ = (struct layout *) native_pointer(instance->slots[0]);
+ long nuntagged = fixnum_value(layout->n_untagged_slots);
+ long nslots = HeaderValue(*addr);
+ pscav(addr + 1, nslots - nuntagged, constant);
+ count = CEILING(1 + nslots, 2);
+ }
+ break;
default:
count = 1;
purify(lispobj static_roots, lispobj read_only_roots)
{
lispobj *clean;
- int count, i;
+ long count, i;
struct later *laters, *next;
+ struct thread *thread;
+ if(all_threads->next) {
+ /* FIXME: there should be _some_ sensible error reporting
+ * convention. See following comment too */
+ fprintf(stderr,"Can't purify when more than one thread exists\n");
+ fflush(stderr);
+ return 0;
+ }
#ifdef PRINTNOISE
printf("[doing purification:");
fflush(stdout);
#endif
-#ifdef LISP_FEATURE_GENCGC
- gc_alloc_update_all_page_tables();
-#endif
- if (fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX)) != 0) {
- /* FIXME: 1. What does this mean? 2. It shouldn't be reporting
- * its error simply by a. printing a string b. to stdout instead
- * of stderr. */
+
+ for_each_thread(thread)
+ if (fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,thread)) != 0) {
+ /* FIXME: 1. What does this mean? 2. It shouldn't be reporting
+ * its error simply by a. printing a string b. to stdout instead
+ * of stderr. */
printf(" Ack! Can't purify interrupt contexts. ");
fflush(stdout);
return 0;
}
-#if defined(__i386__)
- dynamic_space_free_pointer =
- (lispobj*)SymbolValue(ALLOCATION_POINTER);
-#endif
+ dynamic_space_purify_pointer = dynamic_space_free_pointer;
read_only_end = read_only_free =
- (lispobj *)SymbolValue(READ_ONLY_SPACE_FREE_POINTER);
+ (lispobj *)SymbolValue(READ_ONLY_SPACE_FREE_POINTER,0);
static_end = static_free =
- (lispobj *)SymbolValue(STATIC_SPACE_FREE_POINTER);
+ (lispobj *)SymbolValue(STATIC_SPACE_FREE_POINTER,0);
#ifdef PRINTNOISE
printf(" roots");
fflush(stdout);
#endif
-#if (defined(LISP_FEATURE_GENCGC) && defined(LISP_FEATURE_X86))
- gc_assert((lispobj *)CONTROL_STACK_END > ((&read_only_roots)+1));
- setup_i386_stack_scav(((&static_roots)-2), (lispobj *)CONTROL_STACK_END);
-#endif
-
pscav(&static_roots, 1, 0);
pscav(&read_only_roots, 1, 1);
printf(" stack");
fflush(stdout);
#endif
-#ifndef __i386__
- pscav((lispobj *)CONTROL_STACK_START,
- current_control_stack_pointer - (lispobj *)CONTROL_STACK_START,
- 0);
-#else
-#ifdef LISP_FEATURE_GENCGC
- pscav_i386_stack();
-#endif
-#endif
+ pscav((lispobj *)all_threads->control_stack_start,
+ access_control_stack_pointer(all_threads) -
+ all_threads->control_stack_start,
+ 0);
#ifdef PRINTNOISE
printf(" bindings");
fflush(stdout);
#endif
-#if !defined(__i386__)
- pscav( (lispobj *)BINDING_STACK_START,
- (lispobj *)current_binding_stack_pointer - (lispobj *)BINDING_STACK_START,
- 0);
-#else
- pscav( (lispobj *)BINDING_STACK_START,
- (lispobj *)SymbolValue(BINDING_STACK_POINTER) -
- (lispobj *)BINDING_STACK_START,
- 0);
-#endif
+
+ pscav( (lispobj *)all_threads->binding_stack_start,
+ (lispobj *)get_binding_stack_pointer(all_threads) -
+ all_threads->binding_stack_start,
+ 0);
/* The original CMU CL code had scavenge-read-only-space code
* controlled by the Lisp-level variable
* please submit a patch. */
#if 0
if (SymbolValue(SCAVENGE_READ_ONLY_SPACE) != UNBOUND_MARKER_WIDETAG
- && SymbolValue(SCAVENGE_READ_ONLY_SPACE) != NIL) {
+ && SymbolValue(SCAVENGE_READ_ONLY_SPACE) != NIL) {
unsigned read_only_space_size =
- (lispobj *)SymbolValue(READ_ONLY_SPACE_FREE_POINTER) -
- (lispobj *)READ_ONLY_SPACE_START;
+ (lispobj *)SymbolValue(READ_ONLY_SPACE_FREE_POINTER) -
+ (lispobj *)READ_ONLY_SPACE_START;
fprintf(stderr,
- "scavenging read only space: %d bytes\n",
- read_only_space_size * sizeof(lispobj));
+ "scavenging read only space: %d bytes\n",
+ read_only_space_size * sizeof(lispobj));
pscav( (lispobj *)READ_ONLY_SPACE_START, read_only_space_size, 0);
}
#endif
i++;
} else {
pscav(laters->u[i].ptr, 1, 1);
- }
+ }
}
next = laters->next;
free(laters);
printf(" cleanup");
fflush(stdout);
#endif
-
- os_zero((os_vm_address_t) current_dynamic_space,
- (os_vm_size_t) DYNAMIC_SPACE_SIZE);
-
- /* Zero the stack. Note that the stack is also zeroed by SUB-GC
- * calling SCRUB-CONTROL-STACK - this zeros the stack on the x86. */
-#ifndef __i386__
- os_zero((os_vm_address_t) current_control_stack_pointer,
- (os_vm_size_t) (CONTROL_STACK_SIZE -
- ((current_control_stack_pointer -
- (lispobj *)CONTROL_STACK_START) *
- sizeof(lispobj))));
+#ifdef LISP_FEATURE_HPUX
+ clear_auto_gc_trigger(); /* restore mmap as it was given by os */
#endif
+ os_zero((os_vm_address_t) current_dynamic_space, dynamic_space_size);
+
+ /* Zero the stack. */
+ os_zero((os_vm_address_t) access_control_stack_pointer(all_threads),
+ (os_vm_size_t)
+ ((all_threads->control_stack_end -
+ access_control_stack_pointer(all_threads)) * sizeof(lispobj)));
+
/* It helps to update the heap free pointers so that free_heap can
* verify after it's done. */
- SetSymbolValue(READ_ONLY_SPACE_FREE_POINTER, (lispobj)read_only_free);
- SetSymbolValue(STATIC_SPACE_FREE_POINTER, (lispobj)static_free);
+ SetSymbolValue(READ_ONLY_SPACE_FREE_POINTER, (lispobj)read_only_free,0);
+ SetSymbolValue(STATIC_SPACE_FREE_POINTER, (lispobj)static_free,0);
-#if !defined(__i386__)
dynamic_space_free_pointer = current_dynamic_space;
-#else
-#if defined LISP_FEATURE_GENCGC
- gc_free_heap();
-#else
-#error unsupported case /* in CMU CL, was "ibmrt using GC" */
-#endif
-#endif
+ set_auto_gc_trigger(bytes_consed_between_gcs);
+
+ /* Blast away instruction cache */
+ os_flush_icache((os_vm_address_t)READ_ONLY_SPACE_START, READ_ONLY_SPACE_SIZE);
+ os_flush_icache((os_vm_address_t)STATIC_SPACE_START, STATIC_SPACE_SIZE);
#ifdef PRINTNOISE
printf(" done]\n");
fflush(stdout);
#endif
-
return 0;
}
+#else /* LISP_FEATURE_GENCGC */
+int
+purify(lispobj static_roots, lispobj read_only_roots)
+{
+ lose("purify called for GENCGC. This should not happen.");
+}
+#endif /* LISP_FEATURE_GENCGC */
projects / sbcl.git / blobdiff