* files for more information.
*/
-/*
- * $Header$
- */
-
#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include "gencgc.h"
#endif
-#undef PRINTNOISE
+#define PRINTNOISE
-#if defined(ibmrt) || defined(__i386__)
-static lispobj *current_dynamic_space_free_pointer;
+#if defined(__i386__)
+/* again, what's so special about the x86 that this is differently
+ * visible there than on other platforms? -dan 20010125
+ */
+static lispobj *dynamic_space_free_pointer;
#endif
#define gc_abort() \
#define LATERBLOCKSIZE 1020
#define LATERMAXCOUNT 10
-static struct later {
+static struct
+later {
struct later *next;
union {
lispobj *ptr;
dynamic_pointer_p(lispobj ptr)
{
#ifndef __i386__
- return (ptr >= (lispobj)dynamic_0_space);
+ /* KLUDGE: This has an implicit dependence on the ordering of
+ * address spaces, and is therefore basically wrong. I'd fix it,
+ * but I don't have a non-386 port to test it on. Porters are
+ * encouraged to fix it. -- WHN 2000-10-17 */
+ return (ptr >= (lispobj)DYNAMIC_SPACE_START);
#else
/* Be more conservative, and remember, this is a maybe. */
- return (ptr >= (lispobj)current_dynamic_space
+ return (ptr >= (lispobj)DYNAMIC_SPACE_START
&&
- ptr < (lispobj)current_dynamic_space_free_pointer);
+ ptr < (lispobj)dynamic_space_free_pointer);
#endif
}
\f
#ifdef __i386__
-#ifdef WANT_CGC
-/* original x86/CGC stack scavenging code by Paul Werkowski */
-
-static int
-maybe_can_move_p(lispobj thing)
-{
- lispobj *thingp,header;
- if (dynamic_pointer_p(thing)) { /* in dynamic space */
- thingp = (lispobj*)PTR(thing);
- header = *thingp;
- if(Pointerp(header) && forwarding_pointer_p(header))
- return -1; /* must change it */
- if(LowtagOf(thing) == type_ListPointer)
- return type_ListPointer; /* can we check this somehow */
- else if (thing & 3) { /* not fixnum */
- int kind = TypeOf(header);
- /* printf(" %x %x",header,kind); */
- switch (kind) { /* something with a header */
- case type_Bignum:
- case type_SingleFloat:
- case type_DoubleFloat:
-#ifdef type_LongFloat
- case type_LongFloat:
-#endif
- case type_Sap:
- case type_SimpleVector:
- case type_SimpleString:
- case type_SimpleBitVector:
- case type_SimpleArrayUnsignedByte2:
- case type_SimpleArrayUnsignedByte4:
- case type_SimpleArrayUnsignedByte8:
- case type_SimpleArrayUnsignedByte16:
- case type_SimpleArrayUnsignedByte32:
-#ifdef type_SimpleArraySignedByte8
- case type_SimpleArraySignedByte8:
-#endif
-#ifdef type_SimpleArraySignedByte16
- case type_SimpleArraySignedByte16:
-#endif
-#ifdef type_SimpleArraySignedByte30
- case type_SimpleArraySignedByte30:
-#endif
-#ifdef type_SimpleArraySignedByte32
- case type_SimpleArraySignedByte32:
-#endif
- case type_SimpleArraySingleFloat:
- case type_SimpleArrayDoubleFloat:
-#ifdef type_SimpleArrayLongFloat
- case type_SimpleArrayLongFloat:
-#endif
-#ifdef type_SimpleArrayComplexSingleFloat
- case type_SimpleArrayComplexSingleFloat:
-#endif
-#ifdef type_SimpleArrayComplexDoubleFloat
- case type_SimpleArrayComplexDoubleFloat:
-#endif
-#ifdef type_SimpleArrayComplexLongFloat
- case type_SimpleArrayComplexLongFloat:
-#endif
- case type_CodeHeader:
- case type_FunctionHeader:
- case type_ClosureFunctionHeader:
- case type_ReturnPcHeader:
- case type_ClosureHeader:
- case type_FuncallableInstanceHeader:
- case type_InstanceHeader:
- case type_ValueCellHeader:
- case type_ByteCodeFunction:
- case type_ByteCodeClosure:
- case type_WeakPointer:
- case type_Fdefn:
- return kind;
- break;
- default:
- return 0;
- }}}
- return 0;
-}
-
-static int pverbose=0;
-#define PVERBOSE pverbose
-static void
-carefully_pscav_stack(lispobj*lowaddr, lispobj*base)
-{
- lispobj*sp = lowaddr;
- while (sp < base)
- { int k;
- lispobj thing = *sp;
- if((unsigned)thing & 0x3) /* may be pointer */
- {
- /* need to check for valid float/double? */
- k = maybe_can_move_p(thing);
- if(PVERBOSE)printf("%8x %8x %d\n",sp, thing, k);
- if(k)
- pscav(sp, 1, 0);
- }
- sp++;
- }
-}
-#endif
-
#ifdef GENCGC
/*
- * Enhanced x86/GENCGC stack scavenging by Douglas Crosher.
+ * 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:
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 (!Pointerp((lispobj)pointer))
- return 0;
+ /* 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 (LowtagOf((lispobj)pointer)) {
- case type_FunctionPointer:
- /* Start_addr should be the enclosing code object, or a closure
- * header. */
- switch (TypeOf(*start_addr)) {
- case type_CodeHeader:
- /* This case is probably caught above. */
- break;
- case type_ClosureHeader:
- case type_FuncallableInstanceHeader:
- case type_ByteCodeFunction:
- case type_ByteCodeClosure:
- if ((int)pointer != ((int)start_addr+type_FunctionPointer)) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wf2: %x %x %x\n", pointer, start_addr, *start_addr);
+ /* Check that the object pointed to is consistent with the pointer
+ * low tag. */
+ switch (LowtagOf((lispobj)pointer)) {
+ case type_FunctionPointer:
+ /* Start_addr should be the enclosing code object, or a closure
+ * header. */
+ switch (TypeOf(*start_addr)) {
+ case type_CodeHeader:
+ /* This case is probably caught above. */
+ break;
+ case type_ClosureHeader:
+ case type_FuncallableInstanceHeader:
+ case type_ByteCodeFunction:
+ case type_ByteCodeClosure:
+ if ((int)pointer != ((int)start_addr+type_FunctionPointer)) {
+ 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;
}
- return 0;
- }
- break;
- default:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wf3: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
- }
- break;
- case type_ListPointer:
- if ((int)pointer != ((int)start_addr+type_ListPointer)) {
- if (pointer_filter_verbose)
- fprintf(stderr,"*Wl1: %x %x %x\n", pointer, start_addr, *start_addr);
- return 0;
- }
- /* Is it plausible cons? */
- if((Pointerp(start_addr[0])
- || ((start_addr[0] & 3) == 0) /* fixnum */
- || (TypeOf(start_addr[0]) == type_BaseChar)
- || (TypeOf(start_addr[0]) == type_UnboundMarker))
- && (Pointerp(start_addr[1])
- || ((start_addr[1] & 3) == 0) /* fixnum */
- || (TypeOf(start_addr[1]) == type_BaseChar)
- || (TypeOf(start_addr[1]) == type_UnboundMarker))) {
- break;
- } else {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wl2: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
- }
- case type_InstancePointer:
- if ((int)pointer != ((int)start_addr+type_InstancePointer)) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wi1: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
- }
- if (TypeOf(start_addr[0]) != type_InstanceHeader) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wi2: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
- }
- break;
- case type_OtherPointer:
- if ((int)pointer != ((int)start_addr+type_OtherPointer)) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo1: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
- }
- /* Is it plausible? Not a cons. X should check the headers. */
- if(Pointerp(start_addr[0]) || ((start_addr[0] & 3) == 0)) {
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo2: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
- }
- switch (TypeOf(start_addr[0])) {
- case type_UnboundMarker:
- case type_BaseChar:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo3: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
-
- /* only pointed to by function pointers? */
- case type_ClosureHeader:
- case type_FuncallableInstanceHeader:
- case type_ByteCodeFunction:
- case type_ByteCodeClosure:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo4: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
-
- case type_InstanceHeader:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*Wo5: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
-
- /* the valid other immediate pointer objects */
- case type_SimpleVector:
- case type_Ratio:
- case type_Complex:
+ break;
+ case type_ListPointer:
+ if ((int)pointer != ((int)start_addr+type_ListPointer)) {
+ 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 */
+ || (TypeOf(start_addr[0]) == type_BaseChar)
+ || (TypeOf(start_addr[0]) == type_UnboundMarker))
+ && (is_lisp_pointer(start_addr[1])
+ || ((start_addr[1] & 3) == 0) /* fixnum */
+ || (TypeOf(start_addr[1]) == type_BaseChar)
+ || (TypeOf(start_addr[1]) == type_UnboundMarker))) {
+ 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 type_InstancePointer:
+ if ((int)pointer != ((int)start_addr+type_InstancePointer)) {
+ if (pointer_filter_verbose) {
+ fprintf(stderr,"*Wi1: %x %x %x\n", (unsigned int) pointer,
+ (unsigned int) start_addr, *start_addr);
+ }
+ return 0;
+ }
+ if (TypeOf(start_addr[0]) != type_InstanceHeader) {
+ if (pointer_filter_verbose) {
+ fprintf(stderr,"*Wi2: %x %x %x\n", (unsigned int) pointer,
+ (unsigned int) start_addr, *start_addr);
+ }
+ return 0;
+ }
+ break;
+ case type_OtherPointer:
+ if ((int)pointer != ((int)start_addr+type_OtherPointer)) {
+ 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. X 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 (TypeOf(start_addr[0])) {
+ case type_UnboundMarker:
+ case type_BaseChar:
+ 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 type_ClosureHeader:
+ case type_FuncallableInstanceHeader:
+ case type_ByteCodeFunction:
+ case type_ByteCodeClosure:
+ if (pointer_filter_verbose) {
+ fprintf(stderr,"*Wo4: %x %x %x\n", (unsigned int) pointer,
+ (unsigned int) start_addr, *start_addr);
+ }
+ return 0;
+
+ case type_InstanceHeader:
+ 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 type_SimpleVector:
+ case type_Ratio:
+ case type_Complex:
#ifdef type_ComplexSingleFloat
- case type_ComplexSingleFloat:
+ case type_ComplexSingleFloat:
#endif
#ifdef type_ComplexDoubleFloat
- case type_ComplexDoubleFloat:
+ case type_ComplexDoubleFloat:
#endif
#ifdef type_ComplexLongFloat
- case type_ComplexLongFloat:
-#endif
- case type_SimpleArray:
- case type_ComplexString:
- case type_ComplexBitVector:
- case type_ComplexVector:
- case type_ComplexArray:
- case type_ValueCellHeader:
- case type_SymbolHeader:
- case type_Fdefn:
- case type_CodeHeader:
- case type_Bignum:
- case type_SingleFloat:
- case type_DoubleFloat:
+ case type_ComplexLongFloat:
+#endif
+ case type_SimpleArray:
+ case type_ComplexString:
+ case type_ComplexBitVector:
+ case type_ComplexVector:
+ case type_ComplexArray:
+ case type_ValueCellHeader:
+ case type_SymbolHeader:
+ case type_Fdefn:
+ case type_CodeHeader:
+ case type_Bignum:
+ case type_SingleFloat:
+ case type_DoubleFloat:
#ifdef type_LongFloat
- case type_LongFloat:
-#endif
- case type_SimpleString:
- case type_SimpleBitVector:
- case type_SimpleArrayUnsignedByte2:
- case type_SimpleArrayUnsignedByte4:
- case type_SimpleArrayUnsignedByte8:
- case type_SimpleArrayUnsignedByte16:
- case type_SimpleArrayUnsignedByte32:
+ case type_LongFloat:
+#endif
+ case type_SimpleString:
+ case type_SimpleBitVector:
+ case type_SimpleArrayUnsignedByte2:
+ case type_SimpleArrayUnsignedByte4:
+ case type_SimpleArrayUnsignedByte8:
+ case type_SimpleArrayUnsignedByte16:
+ case type_SimpleArrayUnsignedByte32:
#ifdef type_SimpleArraySignedByte8
- case type_SimpleArraySignedByte8:
+ case type_SimpleArraySignedByte8:
#endif
#ifdef type_SimpleArraySignedByte16
- case type_SimpleArraySignedByte16:
+ case type_SimpleArraySignedByte16:
#endif
#ifdef type_SimpleArraySignedByte30
- case type_SimpleArraySignedByte30:
+ case type_SimpleArraySignedByte30:
#endif
#ifdef type_SimpleArraySignedByte32
- case type_SimpleArraySignedByte32:
+ case type_SimpleArraySignedByte32:
#endif
- case type_SimpleArraySingleFloat:
- case type_SimpleArrayDoubleFloat:
+ case type_SimpleArraySingleFloat:
+ case type_SimpleArrayDoubleFloat:
#ifdef type_SimpleArrayLongFloat
- case type_SimpleArrayLongFloat:
+ case type_SimpleArrayLongFloat:
#endif
#ifdef type_SimpleArrayComplexSingleFloat
- case type_SimpleArrayComplexSingleFloat:
+ case type_SimpleArrayComplexSingleFloat:
#endif
#ifdef type_SimpleArrayComplexDoubleFloat
- case type_SimpleArrayComplexDoubleFloat:
+ case type_SimpleArrayComplexDoubleFloat:
#endif
#ifdef type_SimpleArrayComplexLongFloat
- case type_SimpleArrayComplexLongFloat:
-#endif
- case type_Sap:
- case type_WeakPointer:
- break;
-
+ case type_SimpleArrayComplexLongFloat:
+#endif
+ case type_Sap:
+ case type_WeakPointer:
+ 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,"*Wo6: %x %x %x\n", pointer, start_addr, *start_addr);
- }
- return 0;
- }
- break;
- default:
- if (pointer_filter_verbose) {
- fprintf(stderr,"*W?: %x %x %x\n", pointer, start_addr, *start_addr);
+ if (pointer_filter_verbose) {
+ fprintf(stderr,"*W?: %x %x %x\n", (unsigned int) pointer,
+ (unsigned int) start_addr, *start_addr);
+ }
+ return 0;
}
- return 0;
- }
- /* looks good */
- return 1;
+ /* looks good */
+ return 1;
}
#define MAX_STACK_POINTERS 256
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 (TypeOf(*start_addr) == type_CodeHeader) {
- 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 + type_OtherPointer);
- } 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;
+ 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 (TypeOf(*start_addr) == type_CodeHeader) {
+ 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 + type_OtherPointer);
+ } 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);
- }
+ 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);
+ }
}
static void
pscav_i386_stack(void)
{
- int i;
+ 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_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),
- valid_stack_ra_code_objects[i], code_obj);
+ 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));
}
- *valid_stack_ra_locations[i] =
- ((int)(*valid_stack_ra_locations[i])
- - ((int)valid_stack_ra_code_objects[i] - (int)code_obj));
- }
}
#endif
#endif
}
}
-static lispobj ptrans_boxed(lispobj thing, lispobj header, boolean constant)
+static lispobj
+ptrans_boxed(lispobj thing, lispobj header, boolean constant)
{
int nwords;
lispobj result, *new, *old;
nwords = 1 + HeaderValue(header);
/* Allocate it */
- old = (lispobj *)PTR(thing);
+ old = (lispobj *)native_pointer(thing);
if (constant) {
new = read_only_free;
read_only_free += CEILING(nwords, 2);
}
/* We need to look at the layout to see whether it is a pure structure
- * 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)
+ * 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)
{
- lispobj layout = ((struct instance *)PTR(thing))->slots[0];
- lispobj pure = ((struct instance *)PTR(layout))->slots[15];
+ lispobj layout = ((struct instance *)native_pointer(thing))->slots[0];
+ lispobj pure = ((struct instance *)native_pointer(layout))->slots[15];
switch (pure) {
case T:
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. */
+ /* 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 *)PTR(thing);
+ old = (lispobj *)native_pointer(thing);
new = static_free;
static_free += CEILING(nwords, 2);
}
default:
gc_abort();
+ return NIL; /* dummy value: return something ... */
}
}
-static lispobj ptrans_fdefn(lispobj thing, lispobj header)
+static lispobj
+ptrans_fdefn(lispobj thing, lispobj header)
{
int nwords;
lispobj result, *new, *old, oldfn;
nwords = 1 + HeaderValue(header);
/* Allocate it */
- old = (lispobj *)PTR(thing);
+ old = (lispobj *)native_pointer(thing);
new = static_free;
static_free += CEILING(nwords, 2);
return result;
}
-static lispobj ptrans_unboxed(lispobj thing, lispobj header)
+static lispobj
+ptrans_unboxed(lispobj thing, lispobj header)
{
int nwords;
lispobj result, *new, *old;
nwords = 1 + HeaderValue(header);
/* Allocate it */
- old = (lispobj *)PTR(thing);
+ old = (lispobj *)native_pointer(thing);
new = read_only_free;
read_only_free += CEILING(nwords, 2);
return result;
}
-static lispobj ptrans_vector(lispobj thing, int bits, int extra,
- boolean boxed, boolean constant)
+static lispobj
+ptrans_vector(lispobj thing, int bits, int extra,
+ boolean boxed, boolean constant)
{
struct vector *vector;
int nwords;
lispobj result, *new;
- vector = (struct vector *)PTR(thing);
+ vector = (struct vector *)native_pointer(thing);
nwords = 2 + (CEILING((fixnum_value(vector->length)+extra)*bits,32)>>5);
if (boxed && !constant) {
int nheader_words, ncode_words, nwords;
void *constants_start_addr, *constants_end_addr;
void *code_start_addr, *code_end_addr;
- lispobj p;
lispobj fixups = NIL;
unsigned displacement = (unsigned)new_code - (unsigned)old_code;
struct vector *fixups_vector;
/* 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==type_UnboundMarker) || !Pointerp(fixups)) {
+ if ((fixups==0) ||
+ (fixups==type_UnboundMarker) ||
+ !is_lisp_pointer(fixups)) {
#ifdef GENCGC
/* Check for a possible errors. */
sniff_code_object(new_code,displacement);
return;
}
- fixups_vector = (struct vector *)PTR(fixups);
+ fixups_vector = (struct vector *)native_pointer(fixups);
/* Could be pointing to a forwarding pointer. */
- if (Pointerp(fixups) && (dynamic_pointer_p(fixups))
+ if (is_lisp_pointer(fixups) && (dynamic_pointer_p(fixups))
&& forwarding_pointer_p(*(lispobj *)fixups_vector)) {
/* If so then follow it. */
- fixups_vector = (struct vector *)PTR(*(lispobj *)fixups_vector);
+ fixups_vector = (struct vector *)native_pointer(*(lispobj *)fixups_vector);
}
if (TypeOf(fixups_vector->header) == type_SimpleArrayUnsignedByte32) {
}
#endif
-static lispobj ptrans_code(lispobj thing)
+static lispobj
+ptrans_code(lispobj thing)
{
struct code *code, *new;
int nwords;
lispobj func, result;
- code = (struct code *)PTR(thing);
+ code = (struct code *)native_pointer(thing);
nwords = HeaderValue(code->header) + fixnum_value(code->code_size);
new = (struct code *)read_only_free;
/* Put in forwarding pointers for all the functions. */
for (func = code->entry_points;
func != NIL;
- func = ((struct function *)PTR(func))->next) {
+ func = ((struct function *)native_pointer(func))->next) {
gc_assert(LowtagOf(func) == type_FunctionPointer);
- *(lispobj *)PTR(func) = result + (func - thing);
+ *(lispobj *)native_pointer(func) = result + (func - thing);
}
/* Arrange to scavenge the debug info later. */
pscav(&new->entry_points, 1, 1);
for (func = new->entry_points;
func != NIL;
- func = ((struct function *)PTR(func))->next) {
+ func = ((struct function *)native_pointer(func))->next) {
gc_assert(LowtagOf(func) == type_FunctionPointer);
gc_assert(!dynamic_pointer_p(func));
#ifdef __i386__
/* Temporarly convert the self pointer to a real function
pointer. */
- ((struct function *)PTR(func))->self -= RAW_ADDR_OFFSET;
+ ((struct function *)native_pointer(func))->self -= RAW_ADDR_OFFSET;
#endif
- pscav(&((struct function *)PTR(func))->self, 2, 1);
+ pscav(&((struct function *)native_pointer(func))->self, 2, 1);
#ifdef __i386__
- ((struct function *)PTR(func))->self += RAW_ADDR_OFFSET;
+ ((struct function *)native_pointer(func))->self += RAW_ADDR_OFFSET;
#endif
- pscav_later(&((struct function *)PTR(func))->name, 3);
+ pscav_later(&((struct function *)native_pointer(func))->name, 3);
}
return result;
}
-static lispobj ptrans_func(lispobj thing, lispobj header)
+static lispobj
+ptrans_func(lispobj thing, lispobj header)
{
int nwords;
lispobj code, *new, *old, result;
* scavenged, because if it had been scavenged, forwarding pointers
* would have been left behind for all the entry points. */
- function = (struct function *)PTR(thing);
- code = (PTR(thing)-(HeaderValue(function->header)*sizeof(lispobj))) |
+ function = (struct function *)native_pointer(thing);
+ code =
+ (native_pointer(thing) -
+ (HeaderValue(function->header)*sizeof(lispobj))) |
type_OtherPointer;
/* This will cause the function's header to be replaced with a
else {
/* It's some kind of closure-like thing. */
nwords = 1 + HeaderValue(header);
- old = (lispobj *)PTR(thing);
+ old = (lispobj *)native_pointer(thing);
/* Allocate the new one. */
if (TypeOf(header) == type_FuncallableInstanceHeader) {
}
}
-static lispobj ptrans_returnpc(lispobj thing, lispobj header)
+static lispobj
+ptrans_returnpc(lispobj thing, lispobj header)
{
lispobj code, new;
code = thing - HeaderValue(header)*sizeof(lispobj);
/* Make sure it's been transported. */
- new = *(lispobj *)PTR(code);
+ new = *(lispobj *)native_pointer(code);
if (!forwarding_pointer_p(new))
new = ptrans_code(code);
#define WORDS_PER_CONS CEILING(sizeof(struct cons) / sizeof(lispobj), 2)
-static lispobj ptrans_list(lispobj thing, boolean constant)
+static lispobj
+ptrans_list(lispobj thing, boolean constant)
{
struct cons *old, *new, *orig;
int length;
do {
/* Allocate a new cons cell. */
- old = (struct cons *)PTR(thing);
+ old = (struct cons *)native_pointer(thing);
if (constant) {
new = (struct cons *)read_only_free;
read_only_free += WORDS_PER_CONS;
length++;
} while (LowtagOf(thing) == type_ListPointer &&
dynamic_pointer_p(thing) &&
- !(forwarding_pointer_p(*(lispobj *)PTR(thing))));
+ !(forwarding_pointer_p(*(lispobj *)native_pointer(thing))));
/* Scavenge the list we just copied. */
pscav((lispobj *)orig, length * WORDS_PER_CONS, constant);
return ((lispobj)orig) | type_ListPointer;
}
-static lispobj ptrans_otherptr(lispobj thing, lispobj header, boolean constant)
+static lispobj
+ptrans_otherptr(lispobj thing, lispobj header, boolean constant)
{
switch (TypeOf(header)) {
case type_Bignum:
}
}
-static int pscav_fdefn(struct fdefn *fdefn)
+static int
+pscav_fdefn(struct fdefn *fdefn)
{
boolean fix_func;
pscav(&code->entry_points, 1, 1);
for (func = code->entry_points;
func != NIL;
- func = ((struct function *)PTR(func))->next) {
+ func = ((struct function *)native_pointer(func))->next) {
gc_assert(LowtagOf(func) == type_FunctionPointer);
gc_assert(!dynamic_pointer_p(func));
#ifdef __i386__
/* Temporarly convert the self pointer to a real function
* pointer. */
- ((struct function *)PTR(func))->self -= RAW_ADDR_OFFSET;
+ ((struct function *)native_pointer(func))->self -= RAW_ADDR_OFFSET;
#endif
- pscav(&((struct function *)PTR(func))->self, 2, 1);
+ pscav(&((struct function *)native_pointer(func))->self, 2, 1);
#ifdef __i386__
- ((struct function *)PTR(func))->self += RAW_ADDR_OFFSET;
+ ((struct function *)native_pointer(func))->self += RAW_ADDR_OFFSET;
#endif
- pscav_later(&((struct function *)PTR(func))->name, 3);
+ pscav_later(&((struct function *)native_pointer(func))->name, 3);
}
return CEILING(nwords,2);
}
#endif
-static lispobj *pscav(lispobj *addr, int nwords, boolean constant)
+static lispobj *
+pscav(lispobj *addr, int nwords, boolean constant)
{
lispobj thing, *thingp, header;
- int count;
+ int count = 0; /* (0 = dummy init value to stop GCC warning) */
struct vector *vector;
while (nwords > 0) {
thing = *addr;
- if (Pointerp(thing)) {
+ if (is_lisp_pointer(thing)) {
/* 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 *)PTR(thing);
+ thingp = (lispobj *)native_pointer(thing);
header = *thingp;
- if (Pointerp(header) && forwarding_pointer_p(header))
+ if (is_lisp_pointer(header) && forwarding_pointer_p(header))
/* Yep, so just copy the forwarding pointer. */
thing = header;
else {
return addr;
}
-int purify(lispobj static_roots, lispobj read_only_roots)
+int
+purify(lispobj static_roots, lispobj read_only_roots)
{
lispobj *clean;
int count, i;
return 0;
}
-#if defined(ibmrt) || defined(__i386__)
- current_dynamic_space_free_pointer =
+#if defined(__i386__)
+ dynamic_space_free_pointer =
(lispobj*)SymbolValue(ALLOCATION_POINTER);
#endif
#endif
#ifdef GENCGC
- gc_assert(control_stack_end > ((&read_only_roots)+1));
- setup_i386_stack_scav(((&static_roots)-2), control_stack_end);
+ 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);
fflush(stdout);
#endif
#ifndef __i386__
- pscav(control_stack, current_control_stack_pointer - control_stack, 0);
+ pscav((lispobj *)CONTROL_STACK_START,
+ current_control_stack_pointer - (lispobj *)CONTROL_STACK_START,
+ 0);
#else
#ifdef GENCGC
pscav_i386_stack();
#endif
-#ifdef WANT_CGC
- gc_assert(control_stack_end > ((&read_only_roots)+1));
- carefully_pscav_stack(((&read_only_roots)+1), control_stack_end);
-#endif
#endif
#ifdef PRINTNOISE
printf(" bindings");
fflush(stdout);
#endif
-#if !defined(ibmrt) && !defined(__i386__)
- pscav(binding_stack, current_binding_stack_pointer - binding_stack, 0);
+#if !defined(__i386__)
+ pscav( (lispobj *)BINDING_STACK_START,
+ (lispobj *)current_binding_stack_pointer - (lispobj *)BINDING_STACK_START,
+ 0);
#else
- pscav(binding_stack, (lispobj *)SymbolValue(BINDING_STACK_POINTER) - binding_stack, 0);
-#endif
-
-#ifdef SCAVENGE_READ_ONLY_SPACE
+ pscav( (lispobj *)BINDING_STACK_START,
+ (lispobj *)SymbolValue(BINDING_STACK_POINTER) -
+ (lispobj *)BINDING_STACK_START,
+ 0);
+#endif
+
+ /* The original CMU CL code had scavenge-read-only-space code
+ * controlled by the Lisp-level variable
+ * *SCAVENGE-READ-ONLY-SPACE*. It was disabled by default, and it
+ * wasn't documented under what circumstances it was useful or
+ * safe to turn it on, so it's been turned off in SBCL. If you
+ * want/need this functionality, and can test and document it,
+ * please submit a patch. */
+#if 0
if (SymbolValue(SCAVENGE_READ_ONLY_SPACE) != type_UnboundMarker
&& SymbolValue(SCAVENGE_READ_ONLY_SPACE) != NIL) {
unsigned read_only_space_size =
- (lispobj *)SymbolValue(READ_ONLY_SPACE_FREE_POINTER) - read_only_space;
+ (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));
- pscav(read_only_space, read_only_space_size, 0);
+ pscav( (lispobj *)READ_ONLY_SPACE_START, read_only_space_size, 0);
}
#endif
printf(" static");
fflush(stdout);
#endif
- clean = static_space;
+ clean = (lispobj *)STATIC_SPACE_START;
do {
while (clean != static_free)
clean = pscav(clean, static_free - clean, 0);
fflush(stdout);
#endif
-#if defined(WANT_CGC) && defined(X86_CGC_ACTIVE_P)
- if(SymbolValue(X86_CGC_ACTIVE_P) != T)
- os_zero((os_vm_address_t) current_dynamic_space,
- (os_vm_size_t) DYNAMIC_SPACE_SIZE);
-#else
os_zero((os_vm_address_t) current_dynamic_space,
(os_vm_size_t) DYNAMIC_SPACE_SIZE);
-#endif
/* 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 - control_stack) *
+ ((current_control_stack_pointer -
+ (lispobj *)CONTROL_STACK_START) *
sizeof(lispobj))));
#endif
-#if defined(WANT_CGC) && defined(STATIC_BLUE_BAG)
- {
- lispobj bag = SymbolValue(STATIC_BLUE_BAG);
- struct cons*cons = (struct cons*)static_free;
- struct cons*pair = cons + 1;
- static_free += 2*WORDS_PER_CONS;
- if(bag == type_UnboundMarker)
- bag = NIL;
- cons->cdr = bag;
- cons->car = (lispobj)pair | type_ListPointer;
- pair->car = (lispobj)static_end;
- pair->cdr = (lispobj)static_free;
- bag = (lispobj)cons | type_ListPointer;
- SetSymbolValue(STATIC_BLUE_BAG, bag);
- }
-#endif
-
/* 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);
-#if !defined(ibmrt) && !defined(__i386__)
- current_dynamic_space_free_pointer = current_dynamic_space;
-#else
-#if defined(WANT_CGC) && defined(X86_CGC_ACTIVE_P)
- /* X86 using CGC */
- if(SymbolValue(X86_CGC_ACTIVE_P) != T)
- SetSymbolValue(ALLOCATION_POINTER, (lispobj)current_dynamic_space);
- else
- cgc_free_heap();
+#if !defined(__i386__)
+ dynamic_space_free_pointer = current_dynamic_space;
#else
#if defined GENCGC
gc_free_heap();
#else
- /* ibmrt using GC */
- SetSymbolValue(ALLOCATION_POINTER, (lispobj)current_dynamic_space);
-#endif
+#error unsupported case /* in CMU CL, was "ibmrt using GC" */
#endif
#endif
projects / sbcl.git / blobdiff