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Merge branch 'master' of git://factorcode.org/git/factor

db4
Joe Groff 2009-11-05 22:23:21 -06:00
parent a5957b188d c08d325132
commit 4b0edb34d3
46 changed files with 476 additions and 538 deletions
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1
Makefile
View File

@ -58,6 +58,7 @@ DLL_OBJS = $(PLAF_DLL_OBJS) \
vm/math.o \
vm/nursery_collector.o \
vm/object_start_map.o \
vm/objects.o \
vm/primitives.o \
vm/profiler.o \
vm/quotations.o \

12
basis/compiler/tree/propagation/transforms/transforms.factor
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@ -3,7 +3,7 @@
USING: kernel sequences words fry generic accessors
classes.tuple classes classes.algebra definitions
stack-checker.state quotations classes.tuple.private math
math.partial-dispatch math.private math.intervals
math.partial-dispatch math.private math.intervals sets.private
math.floats.private math.integers.private layouts math.order
vectors hashtables combinators effects generalizations assocs
sets combinators.short-circuit sequences.private locals
@ -290,3 +290,13 @@ CONSTANT: lookup-table-at-max 256
] [ drop f ] if ;
\ at* [ at-quot ] 1 define-partial-eval
: diff-quot ( seq -- quot: ( seq' -- seq'' ) )
tester '[ [ @ not ] filter ] ;
\ diff [ diff-quot ] 1 define-partial-eval
: intersect-quot ( seq -- quot: ( seq' -- seq'' ) )
tester '[ _ filter ] ;
\ intersect [ intersect-quot ] 1 define-partial-eval

2
basis/compression/run-length/run-length.factor
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@ -1,7 +1,7 @@
! Copyright (C) 2009 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors arrays combinators grouping kernel locals math
math.matrices math.order multiline sequence-parser sequences
math.matrices math.order multiline sequences.parser sequences
tools.continuations ;
IN: compression.run-length

3
basis/debugger/debugger-docs.factor
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@ -129,9 +129,6 @@ HELP: c-string-error.
HELP: ffi-error.
{ $error-description "Thrown by " { $link dlopen } " and " { $link dlsym } " if a problem occurs while loading a native library or looking up a symbol. See " { $link "alien" } "." } ;
HELP: heap-scan-error.
{ $error-description "Thrown if " { $link next-object } " is called outside of a " { $link begin-scan } "/" { $link end-scan } " pair." } ;
HELP: undefined-symbol-error.
{ $error-description "Thrown if a previously-compiled " { $link alien-invoke } " call refers to a native library symbol which no longer exists." } ;

18
basis/debugger/debugger.factor
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@ -103,9 +103,6 @@ HOOK: signal-error. os ( obj -- )
: ffi-error. ( obj -- )
"FFI error" print drop ;
: heap-scan-error. ( obj -- )
"Cannot do next-object outside begin/end-scan" print drop ;
: undefined-symbol-error. ( obj -- )
"The image refers to a library or symbol that was not found at load time"
print drop ;
@ -148,14 +145,13 @@ PREDICATE: vm-error < array
{ 6 [ array-size-error. ] }
{ 7 [ c-string-error. ] }
{ 8 [ ffi-error. ] }
{ 9 [ heap-scan-error. ] }
{ 10 [ undefined-symbol-error. ] }
{ 11 [ datastack-underflow. ] }
{ 12 [ datastack-overflow. ] }
{ 13 [ retainstack-underflow. ] }
{ 14 [ retainstack-overflow. ] }
{ 15 [ memory-error. ] }
{ 16 [ fp-trap-error. ] }
{ 9 [ undefined-symbol-error. ] }
{ 10 [ datastack-underflow. ] }
{ 11 [ datastack-overflow. ] }
{ 12 [ retainstack-underflow. ] }
{ 13 [ retainstack-overflow. ] }
{ 14 [ memory-error. ] }
{ 15 [ fp-trap-error. ] }
} ; inline
M: vm-error summary drop "VM error" ;

14
basis/math/statistics/statistics-docs.factor
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@ -98,6 +98,19 @@ HELP: histogram*
}
{ $description "Takes an existing hashtable and uses " { $link histogram } " to continue counting the number of occurences of each element." } ;
HELP: sorted-histogram
{ $values
{ "seq" sequence }
{ "alist" "an array of key/value pairs" }
}
{ $description "Outputs a " { $link histogram } " of a sequence sorted by number of occurences from lowest to highest." }
{ $examples
{ $example "USING: prettyprint math.statistics ;"
""""abababbbbbbc" sorted-histogram ."""
"{ { 99 1 } { 97 3 } { 98 8 } }"
}
} ;
HELP: sequence>assoc
{ $values
{ "seq" sequence } { "quot" quotation } { "exemplar" "an exemplar assoc" }
@ -145,6 +158,7 @@ ARTICLE: "histogram" "Computing histograms"
{ $subsections
histogram
histogram*
sorted-histogram
}
"Combinators for implementing histogram:"
{ $subsections

3
basis/math/statistics/statistics.factor
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@ -79,6 +79,9 @@ PRIVATE>
: histogram ( seq -- hashtable )
[ inc-at ] sequence>hashtable ;
: sorted-histogram ( seq -- alist )
histogram >alist sort-values ;
: collect-values ( seq quot: ( obj hashtable -- ) -- hash )
'[ [ dup @ ] dip push-at ] sequence>hashtable ; inline

2
basis/sequences/parser/authors.txt Normal file
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@ -0,0 +1,2 @@
Daniel Ehrenberg
Doug Coleman

2
extra/sequence-parser/sequence-parser-tests.factor → basis/sequences/parser/parser-tests.factor
View File

@ -1,6 +1,6 @@
USING: tools.test sequence-parser unicode.categories kernel
accessors ;
IN: sequence-parser.tests
IN: sequences.parser.tests
[ "hello" ]
[ "hello" [ take-rest ] parse-sequence ] unit-test

2
extra/sequence-parser/sequence-parser.factor → basis/sequences/parser/parser.factor
View File

@ -3,7 +3,7 @@
USING: accessors circular combinators.short-circuit fry io
kernel locals math math.order sequences sorting.functor
sorting.slots unicode.categories ;
IN: sequence-parser
IN: sequences.parser
TUPLE: sequence-parser sequence n ;

6
basis/stack-checker/known-words/known-words.factor
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@ -623,11 +623,7 @@ M: bad-executable summary
\ <array> { integer object } { array } define-primitive
\ <array> make-flushable
\ begin-scan { } { } define-primitive
\ next-object { } { object } define-primitive
\ end-scan { } { } define-primitive
\ all-instances { } { array } define-primitive
\ size { object } { fixnum } define-primitive
\ size make-flushable

7
basis/tools/memory/memory-docs.factor
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@ -13,11 +13,8 @@ ARTICLE: "tools.memory" "Object memory tools"
data-room
code-room
}
"There are a pair of combinators, analogous to " { $link each } " and " { $link filter } ", which operate on the entire collection of objects in the object heap:"
{ $subsections
each-object
instances
}
"A combinator to get objects from the heap:"
{ $subsections instances }
"You can check an object's the heap memory usage:"
{ $subsections size }
"The garbage collector can be invoked manually:"

2
basis/vm/vm.factor
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@ -3,7 +3,7 @@
USING: classes.struct alien.c-types alien.syntax ;
IN: vm
TYPEDEF: intptr_t cell
TYPEDEF: uintptr_t cell
C-TYPE: context
STRUCT: zone

4
core/bootstrap/primitives.factor
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@ -473,9 +473,7 @@ tuple
{ "resize-array" "arrays" (( n array -- newarray )) }
{ "resize-string" "strings" (( n str -- newstr )) }
{ "<array>" "arrays" (( n elt -- array )) }
{ "begin-scan" "memory" (( -- )) }
{ "next-object" "memory" (( -- obj )) }
{ "end-scan" "memory" (( -- )) }
{ "all-instances" "memory" (( -- array )) }
{ "size" "memory" (( obj -- n )) }
{ "die" "kernel" (( -- )) }
{ "(fopen)" "io.streams.c" (( path mode -- alien )) }

12
core/bootstrap/stage1.factor
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@ -17,15 +17,9 @@ load-help? off
! Create a boot quotation for the target
[
[
! Rehash hashtables, since bootstrap.image creates them
! using the host image's hashing algorithms. We don't
! use each-object here since the catch stack isn't yet
! set up.
gc
begin-scan
[ hashtable? ] pusher [ (each-object) ] dip
end-scan
[ rehash ] each
! Rehash hashtables first, since bootstrap.image creates
! them using the host image's hashing algorithms.
[ hashtable? ] instances [ rehash ] each
boot
] %

35
core/memory/memory-docs.factor
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@ -2,31 +2,9 @@ USING: help.markup help.syntax debugger sequences kernel
quotations math ;
IN: memory
HELP: begin-scan ( -- )
{ $description "Disables the garbage collector and resets the heap scan pointer to point at the first object in the heap. The " { $link next-object } " word can then be called to advance the heap scan pointer and return successive objects."
$nl
"This word must always be paired with a call to " { $link end-scan } "." }
{ $notes "This is a low-level facility and can be dangerous. Use the " { $link each-object } " combinator instead." } ;
HELP: next-object ( -- obj )
{ $values { "obj" object } }
{ $description "Outputs the object at the heap scan pointer, and then advances the heap scan pointer. If the end of the heap has been reached, outputs " { $link f } ". This is unambiguous since the " { $link f } " object is tagged immediate and not actually stored in the heap." }
{ $errors "Throws a " { $link heap-scan-error. } " if called outside a " { $link begin-scan } "/" { $link end-scan } " pair." }
{ $notes "This is a low-level facility and can be dangerous. Use the " { $link each-object } " combinator instead." } ;
HELP: end-scan ( -- )
{ $description "Finishes a heap iteration by re-enabling the garbage collector. This word must always be paired with a call to " { $link begin-scan } "." }
{ $notes "This is a low-level facility and can be dangerous. Use the " { $link each-object } " combinator instead." } ;
HELP: each-object
{ $values { "quot" { $quotation "( obj -- )" } } }
{ $description "Applies a quotation to each object in the heap. The garbage collector is switched off while this combinator runs, so the given quotation must not allocate too much memory." }
{ $notes "This word is the low-level facility used to implement the " { $link instances } " word." } ;
HELP: instances
{ $values { "quot" { $quotation "( obj -- ? )" } } { "seq" "a fresh sequence" } }
{ $description "Outputs a sequence of all objects in the heap which satisfy the quotation." }
{ $notes "This word relies on " { $link each-object } ", so in particular the garbage collector is switched off while it runs and the given quotation must not allocate too much memory." } ;
{ $description "Outputs a sequence of all objects in the heap which satisfy the quotation." } ;
HELP: gc ( -- )
{ $description "Performs a full garbage collection." } ;
@ -56,17 +34,6 @@ HELP: save-image-and-exit ( path -- )
HELP: save
{ $description "Saves a snapshot of the heap to the current image file." } ;
HELP: count-instances
{ $values
{ "quot" quotation }
{ "n" integer } }
{ $description "Applies the predicate quotation to each object in the heap and returns the number of objects that match. Since this word uses " { $link each-object } " with the garbage collector switched off, avoid allocating too much memory in the quotation." }
{ $examples { $unchecked-example
"USING: memory words prettyprint ;"
"[ word? ] count-instances ."
"24210"
} } ;
ARTICLE: "images" "Images"
"Factor has the ability to save the entire state of the system into an " { $emphasis "image file" } ". The image contains a complete dump of all data and code in the current Factor instance."
{ $subsections

19
core/memory/memory.factor
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@ -1,26 +1,11 @@
! Copyright (C) 2005, 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: kernel continuations sequences vectors arrays system math
USING: kernel continuations sequences system
io.backend alien.strings memory.private ;
IN: memory
: (each-object) ( quot: ( obj -- ) -- )
next-object dup [
swap [ call ] keep (each-object)
] [ 2drop ] if ; inline recursive
: each-object ( quot -- )
gc begin-scan [ (each-object) ] [ end-scan ] [ ] cleanup ; inline
: count-instances ( quot -- n )
0 swap [ 1 0 ? + ] compose each-object ; inline
: instances ( quot -- seq )
#! To ensure we don't need to grow the vector while scanning
#! the heap, we do two scans, the first one just counts the
#! number of objects that satisfy the predicate.
[ count-instances 100 + <vector> ] keep swap
[ [ push-if ] 2curry each-object ] keep >array ; inline
[ all-instances ] dip filter ; inline
: save-image ( path -- )
normalize-path native-string>alien (save-image) ;

2
extra/c/lexer/lexer-tests.factor
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@ -1,6 +1,6 @@
! Copyright (C) 2009 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors c.lexer kernel sequence-parser tools.test ;
USING: accessors c.lexer kernel sequences.parser tools.test ;
IN: c.lexer.tests
[ 36 ]

2
extra/c/lexer/lexer.factor
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@ -2,7 +2,7 @@
! See http://factorcode.org/license.txt for BSD license.
USING: accessors combinators combinators.short-circuit
generalizations kernel locals math.order math.ranges
sequence-parser sequences sorting.functor sorting.slots
sequences.parser sequences sorting.functor sorting.slots
unicode.categories ;
IN: c.lexer

2
extra/c/preprocessor/preprocessor.factor
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@ -1,6 +1,6 @@
! Copyright (C) 2009 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: sequence-parser io io.encodings.utf8 io.files
USING: sequences.parser io io.encodings.utf8 io.files
io.streams.string kernel combinators accessors io.pathnames
fry sequences arrays locals namespaces io.directories
assocs math splitting make unicode.categories

2
extra/html/parser/parser.factor
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@ -1,6 +1,6 @@
! Copyright (C) 2008 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors arrays hashtables sequence-parser
USING: accessors arrays hashtables sequences.parser
html.parser.utils kernel namespaces sequences math
unicode.case unicode.categories combinators.short-circuit
quoting fry ;

9
vm/aging_space.hpp
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@ -15,15 +15,6 @@ struct aging_space : bump_allocator<object> {
starts.record_object_start_offset(obj);
return obj;
}
cell next_object_after(cell scan)
{
cell size = ((object *)scan)->size();
if(scan + size < here)
return scan + size;
else
return 0;
}
};
}

59
vm/bitwise_hacks.hpp
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@ -3,65 +3,60 @@ namespace factor
/* These algorithms were snarfed from various places. I did not come up with them myself */
inline cell popcount(u64 x)
inline cell popcount(cell x)
{
#ifdef FACTOR_64
u64 k1 = 0x5555555555555555ll;
u64 k2 = 0x3333333333333333ll;
u64 k4 = 0x0f0f0f0f0f0f0f0fll;
u64 kf = 0x0101010101010101ll;
cell ks = 56;
#else
u32 k1 = 0x55555555;
u32 k2 = 0x33333333;
u32 k4 = 0xf0f0f0f;
u32 kf = 0x1010101;
cell ks = 24;
#endif
x = x - ((x >> 1) & k1); // put count of each 2 bits into those 2 bits
x = (x & k2) + ((x >> 2) & k2); // put count of each 4 bits into those 4 bits
x = (x + (x >> 4)) & k4 ; // put count of each 8 bits into those 8 bits
x = (x * kf) >> 56; // returns 8 most significant bits of x + (x<<8) + (x<<16) + (x<<24) + ...
x = (x * kf) >> ks; // returns 8 most significant bits of x + (x<<8) + (x<<16) + (x<<24) + ...
return (cell)x;
}
inline cell log2(u64 x)
inline cell log2(cell x)
{
#ifdef FACTOR_AMD64
#if defined(FACTOR_X86)
cell n;
asm ("bsr %1, %0;":"=r"(n):"r"((cell)x));
asm ("bsr %1, %0;":"=r"(n):"r"(x));
#elif defined(FACTOR_AMD64)
cell n;
asm ("bsr %1, %0;":"=r"(n):"r"(x));
#else
cell n = 0;
#ifdef FACTOR_64
if (x >= (u64)1 << 32) { x >>= 32; n += 32; }
if (x >= (u64)1 << 16) { x >>= 16; n += 16; }
if (x >= (u64)1 << 8) { x >>= 8; n += 8; }
if (x >= (u64)1 << 4) { x >>= 4; n += 4; }
if (x >= (u64)1 << 2) { x >>= 2; n += 2; }
if (x >= (u64)1 << 1) { n += 1; }
#endif
if (x >= (u32)1 << 16) { x >>= 16; n += 16; }
if (x >= (u32)1 << 8) { x >>= 8; n += 8; }
if (x >= (u32)1 << 4) { x >>= 4; n += 4; }
if (x >= (u32)1 << 2) { x >>= 2; n += 2; }
if (x >= (u32)1 << 1) { n += 1; }
#endif
return n;
}
inline cell log2(u16 x)
{
#if defined(FACTOR_X86) || defined(FACTOR_AMD64)
cell n;
asm ("bsr %1, %0;":"=r"(n):"r"((cell)x));
#else
cell n = 0;
if (x >= 1 << 8) { x >>= 8; n += 8; }
if (x >= 1 << 4) { x >>= 4; n += 4; }
if (x >= 1 << 2) { x >>= 2; n += 2; }
if (x >= 1 << 1) { n += 1; }
#endif
return n;
}
inline cell rightmost_clear_bit(u64 x)
inline cell rightmost_clear_bit(cell x)
{
return log2(~x & (x + 1));
}
inline cell rightmost_set_bit(u64 x)
inline cell rightmost_set_bit(cell x)
{
return log2(x & -x);
}
inline cell rightmost_set_bit(u16 x)
{
return log2((u16)(x & -x));
}
}

17
vm/bump_allocator.hpp
View File

@ -32,6 +32,23 @@ template<typename Block> struct bump_allocator {
{
return end - here;
}
cell next_object_after(cell scan)
{
cell size = ((Block *)scan)->size();
if(scan + size < here)
return scan + size;
else
return 0;
}
cell first_object()
{
if(start != here)
return start;
else
return 0;
}
};
}

13
vm/code_heap.cpp
View File

@ -118,10 +118,8 @@ struct word_and_literal_code_heap_updater {
void factor_vm::update_code_heap_words_and_literals()
{
current_gc->event->started_code_sweep();
word_and_literal_code_heap_updater updater(this);
code->allocator->sweep(updater);
current_gc->event->ended_code_sweep();
iterate_code_heap(updater);
}
/* After growing the heap, we have to perform a full relocation to update
@ -137,12 +135,6 @@ struct code_heap_relocator {
}
};
void factor_vm::relocate_code_heap()
{
code_heap_relocator relocator(this);
code->allocator->sweep(relocator);
}
void factor_vm::primitive_modify_code_heap()
{
data_root<array> alist(dpop(),this);
@ -152,8 +144,7 @@ void factor_vm::primitive_modify_code_heap()
if(count == 0)
return;
cell i;
for(i = 0; i < count; i++)
for(cell i = 0; i < count; i++)
{
data_root<array> pair(array_nth(alist.untagged(),i),this);

4
vm/compaction.cpp
View File

@ -150,9 +150,9 @@ struct object_code_block_updater {
explicit object_code_block_updater(code_block_visitor<forwarder<code_block> > *visitor_) :
visitor(visitor_) {}
void operator()(cell obj)
void operator()(object *obj)
{
visitor->visit_object_code_block(tagged<object>(obj).untagged());
visitor->visit_object_code_block(obj);
}
};

8
vm/contexts.cpp
View File

@ -196,4 +196,12 @@ void factor_vm::primitive_check_datastack()
}
}
void factor_vm::primitive_load_locals()
{
fixnum count = untag_fixnum(dpop());
memcpy((cell *)(rs + sizeof(cell)),(cell *)(ds - sizeof(cell) * (count - 1)),sizeof(cell) * count);
ds -= sizeof(cell) * count;
rs += sizeof(cell) * count;
}
}

112
vm/data_heap.cpp
View File

@ -103,6 +103,12 @@ bool data_heap::low_memory_p()
return (tenured->free_space() <= nursery->size + aging->size);
}
void data_heap::mark_all_cards()
{
memset(cards,-1,cards_end - cards);
memset(decks,-1,decks_end - decks);
}
void factor_vm::set_data_heap(data_heap *data_)
{
data = data_;
@ -115,15 +121,6 @@ void factor_vm::init_data_heap(cell young_size, cell aging_size, cell tenured_si
set_data_heap(new data_heap(young_size,aging_size,tenured_size));
}
/* Size of the object pointed to by a tagged pointer */
cell factor_vm::object_size(cell tagged)
{
if(immediate_p(tagged))
return 0;
else
return untag<object>(tagged)->size();
}
/* Size of the object pointed to by an untagged pointer */
cell object::size() const
{
@ -201,11 +198,6 @@ cell object::binary_payload_start() const
}
}
void factor_vm::primitive_size()
{
box_unsigned_cell(object_size(dpop()));
}
data_heap_room factor_vm::data_room()
{
data_heap_room room;
@ -234,82 +226,42 @@ void factor_vm::primitive_data_room()
dpush(tag<byte_array>(byte_array_from_value(&room)));
}
/* Disables GC and activates next-object ( -- obj ) primitive */
void factor_vm::begin_scan()
struct object_accumulator {
cell type;
std::vector<cell> objects;
explicit object_accumulator(cell type_) : type(type_) {}
void operator()(object *obj)
{
heap_scan_ptr = data->tenured->first_object();
if(type == TYPE_COUNT || obj->h.hi_tag() == type)
objects.push_back(tag_dynamic(obj));
}
};
cell factor_vm::instances(cell type)
{
object_accumulator accum(type);
each_object(accum);
cell object_count = accum.objects.size();
gc_off = true;
}
void factor_vm::end_scan()
{
array *objects = allot_array(object_count,false_object);
memcpy(objects->data(),&accum.objects[0],object_count * sizeof(cell));
gc_off = false;
return tag<array>(objects);
}
void factor_vm::primitive_begin_scan()
void factor_vm::primitive_all_instances()
{
begin_scan();
primitive_full_gc();
dpush(instances(TYPE_COUNT));
}
cell factor_vm::next_object()
{
if(!gc_off)
general_error(ERROR_HEAP_SCAN,false_object,false_object,NULL);
if(heap_scan_ptr)
{
cell current = heap_scan_ptr;
heap_scan_ptr = data->tenured->next_object_after(heap_scan_ptr);
return tag_dynamic((object *)current);
}
else
return false_object;
}
/* Push object at heap scan cursor and advance; pushes f when done */
void factor_vm::primitive_next_object()
{
dpush(next_object());
}
/* Re-enables GC */
void factor_vm::primitive_end_scan()
{
gc_off = false;
}
struct word_counter {
cell count;
explicit word_counter() : count(0) {}
void operator()(cell obj)
{
if(tagged<object>(obj).type_p(WORD_TYPE))
count++;
}
};
struct word_accumulator {
growable_array words;
explicit word_accumulator(int count,factor_vm *vm) : words(vm,count) {}
void operator()(cell obj)
{
if(tagged<object>(obj).type_p(WORD_TYPE))
words.add(obj);
}
};
cell factor_vm::find_all_words()
{
word_counter counter;
each_object(counter);
word_accumulator accum(counter.count,this);
each_object(accum);
accum.words.trim();
return accum.words.elements.value();
return instances(WORD_TYPE);
}
}

1
vm/data_heap.hpp
View File

@ -30,6 +30,7 @@ struct data_heap {
void reset_generation(aging_space *gen);
void reset_generation(tenured_space *gen);
bool low_memory_p();
void mark_all_cards();
};
struct data_heap_room {

21
vm/debug.cpp
View File

@ -241,12 +241,12 @@ struct object_dumper {
explicit object_dumper(factor_vm *parent_, cell type_) :
parent(parent_), type(type_) {}
void operator()(cell obj)
void operator()(object *obj)
{
if(type == TYPE_COUNT || tagged<object>(obj).type_p(type))
if(type == TYPE_COUNT || obj->h.hi_tag() == type)
{
std::cout << padded_address(obj) << " ";
parent->print_nested_obj(obj,2);
std::cout << padded_address((cell)obj) << " ";
parent->print_nested_obj(tag_dynamic(obj),2);
std::cout << std::endl;
}
}
@ -260,18 +260,19 @@ void factor_vm::dump_objects(cell type)
}
struct data_reference_slot_visitor {
cell look_for, obj;
cell look_for;
object *obj;
factor_vm *parent;
explicit data_reference_slot_visitor(cell look_for_, cell obj_, factor_vm *parent_) :
explicit data_reference_slot_visitor(cell look_for_, object *obj_, factor_vm *parent_) :
look_for(look_for_), obj(obj_), parent(parent_) { }
void operator()(cell *scan)
{
if(look_for == *scan)
{
std::cout << padded_address(obj) << " ";
parent->print_nested_obj(obj,2);
std::cout << padded_address((cell)obj) << " ";
parent->print_nested_obj(tag_dynamic(obj),2);
std::cout << std::endl;
}
}
@ -284,10 +285,10 @@ struct data_reference_object_visitor {
explicit data_reference_object_visitor(cell look_for_, factor_vm *parent_) :
look_for(look_for_), parent(parent_) {}
void operator()(cell obj)
void operator()(object *obj)
{
data_reference_slot_visitor visitor(look_for,obj,parent);
parent->do_slots(UNTAG(obj),visitor);
parent->do_slots(obj,visitor);
}
};

1
vm/errors.hpp
View File

@ -13,7 +13,6 @@ enum vm_error_type
ERROR_ARRAY_SIZE,
ERROR_C_STRING,
ERROR_FFI,
ERROR_HEAP_SCAN,
ERROR_UNDEFINED_SYMBOL,
ERROR_DS_UNDERFLOW,
ERROR_DS_OVERFLOW,

1
vm/factor.cpp
View File

@ -86,6 +86,7 @@ void factor_vm::do_stage1_init()
fflush(stdout);
compile_all_words();
update_code_heap_words();
special_objects[OBJ_STAGE2] = true_object;
std::cout << "done\n";

54
vm/free_list_allocator.hpp
View File

@ -23,7 +23,6 @@ template<typename Block> struct free_list_allocator {
cell largest_free_block();
cell free_block_count();
void sweep();
template<typename Iterator> void sweep(Iterator &iter);
template<typename Iterator, typename Sizer> void compact(Iterator &iter, Sizer &sizer);
template<typename Iterator, typename Sizer> void iterate(Iterator &iter, Sizer &sizer);
template<typename Iterator> void iterate(Iterator &iter);
@ -152,59 +151,6 @@ void free_list_allocator<Block>::sweep()
}
}
template<typename Block>
template<typename Iterator>
void free_list_allocator<Block>::sweep(Iterator &iter)
{
free_blocks.clear_free_list();
Block *prev = NULL;
Block *scan = this->first_block();
Block *end = this->last_block();
while(scan != end)
{
cell size = scan->size();
if(scan->free_p())
{
if(prev && prev->free_p())
{
free_heap_block *free_prev = (free_heap_block *)prev;
free_prev->make_free(free_prev->size() + size);
}
else
prev = scan;
}
else if(this->state.marked_p(scan))
{
if(prev && prev->free_p())
free_blocks.add_to_free_list((free_heap_block *)prev);
prev = scan;
iter(scan,size);
}
else
{
if(prev && prev->free_p())
{
free_heap_block *free_prev = (free_heap_block *)prev;
free_prev->make_free(free_prev->size() + size);
}
else
{
free_heap_block *free_block = (free_heap_block *)scan;
free_block->make_free(size);
prev = scan;
}
}
scan = (Block *)((cell)scan + size);
}
if(prev && prev->free_p())
free_blocks.add_to_free_list((free_heap_block *)prev);
}
template<typename Block, typename Iterator> struct heap_compactor {
mark_bits<Block> *state;
char *address;

4
vm/full_collector.cpp
View File

@ -116,6 +116,10 @@ void factor_vm::collect_sweep_impl()
data->tenured->sweep();
update_code_roots_for_sweep();
current_gc->event->ended_data_sweep();
current_gc->event->started_code_sweep();
code->allocator->sweep();
current_gc->event->ended_code_sweep();
}
void factor_vm::collect_full(bool trace_contexts_p)

35
vm/gc.cpp
View File

@ -218,37 +218,6 @@ void factor_vm::primitive_compact_gc()
true /* trace contexts? */);
}
/* classes.tuple uses this to reshape tuples; tools.deploy.shaker uses this
to coalesce equal but distinct quotations and wrappers. */
void factor_vm::primitive_become()
{
array *new_objects = untag_check<array>(dpop());
array *old_objects = untag_check<array>(dpop());
cell capacity = array_capacity(new_objects);
if(capacity != array_capacity(old_objects))
critical_error("bad parameters to become",0);
cell i;
for(i = 0; i < capacity; i++)
{
tagged<object> old_obj(array_nth(old_objects,i));
tagged<object> new_obj(array_nth(new_objects,i));
if(old_obj != new_obj)
old_obj->h.forward_to(new_obj.untagged());
}
primitive_full_gc();
/* If a word's definition quotation was in old_objects and the
quotation in new_objects is not compiled, we might leak memory
by referencing the old quotation unless we recompile all
unoptimized words. */
compile_all_words();
}
void factor_vm::inline_gc(cell *data_roots_base, cell data_roots_size)
{
for(cell i = 0; i < data_roots_size; i++)
@ -290,9 +259,7 @@ object *factor_vm::allot_large_object(header header, cell size)
/* Allows initialization code to store old->new pointers
without hitting the write barrier in the common case of
a nursery allocation */
char *start = (char *)obj;
for(cell offset = 0; offset < size; offset += card_size)
write_barrier((cell *)(start + offset));
write_barrier(obj,size);
obj->h = header;
return obj;

2
vm/image.cpp
View File

@ -154,7 +154,7 @@ void factor_vm::relocate_object(object *object,
else
{
object_fixupper fixupper(this,data_relocation_base);
do_slots((cell)object,fixupper);
do_slots(object,fixupper);
switch(hi_tag)
{

40
vm/mark_bits.hpp
View File

@ -2,18 +2,19 @@ namespace factor
{
const int block_granularity = 16;
const int forwarding_granularity = 64;
const int mark_bits_granularity = sizeof(cell) * 8;
const int mark_bits_mask = sizeof(cell) * 8 - 1;
template<typename Block> struct mark_bits {
cell size;
cell start;
cell bits_size;
u64 *marked;
cell *marked;
cell *forwarding;
void clear_mark_bits()
{
memset(marked,0,bits_size * sizeof(u64));
memset(marked,0,bits_size * sizeof(cell));
}
void clear_forwarding()
@ -24,8 +25,8 @@ template<typename Block> struct mark_bits {
explicit mark_bits(cell size_, cell start_) :
size(size_),
start(start_),
bits_size(size / block_granularity / forwarding_granularity),
marked(new u64[bits_size]),
bits_size(size / block_granularity / mark_bits_granularity),
marked(new cell[bits_size]),
forwarding(new cell[bits_size])
{
clear_mark_bits();
@ -53,15 +54,15 @@ template<typename Block> struct mark_bits {
std::pair<cell,cell> bitmap_deref(Block *address)
{
cell line_number = block_line(address);
cell word_index = (line_number >> 6);
cell word_shift = (line_number & 63);
cell word_index = (line_number / mark_bits_granularity);
cell word_shift = (line_number & mark_bits_mask);
return std::make_pair(word_index,word_shift);
}
bool bitmap_elt(u64 *bits, Block *address)
bool bitmap_elt(cell *bits, Block *address)
{
std::pair<cell,cell> position = bitmap_deref(address);
return (bits[position.first] & ((u64)1 << position.second)) != 0;
return (bits[position.first] & ((cell)1 << position.second)) != 0;
}
Block *next_block_after(Block *block)
@ -69,13 +70,13 @@ template<typename Block> struct mark_bits {
return (Block *)((cell)block + block->size());
}
void set_bitmap_range(u64 *bits, Block *address)
void set_bitmap_range(cell *bits, Block *address)
{
std::pair<cell,cell> start = bitmap_deref(address);
std::pair<cell,cell> end = bitmap_deref(next_block_after(address));
u64 start_mask = ((u64)1 << start.second) - 1;
u64 end_mask = ((u64)1 << end.second) - 1;
cell start_mask = ((cell)1 << start.second) - 1;
cell end_mask = ((cell)1 << end.second) - 1;
if(start.first == end.first)
bits[start.first] |= start_mask ^ end_mask;
@ -87,7 +88,7 @@ template<typename Block> struct mark_bits {
bits[start.first] |= ~start_mask;
for(cell index = start.first + 1; index < end.first; index++)
bits[index] = (u64)-1;
bits[index] = (cell)-1;
if(end_mask != 0)
{
@ -121,7 +122,8 @@ template<typename Block> struct mark_bits {
}
}
/* We have the popcount for every 64 entries; look up and compute the rest */
/* We have the popcount for every mark_bits_granularity entries; look
up and compute the rest */
Block *forward_block(Block *original)
{
#ifdef FACTOR_DEBUG
@ -130,7 +132,7 @@ template<typename Block> struct mark_bits {
std::pair<cell,cell> position = bitmap_deref(original);
cell approx_popcount = forwarding[position.first];
u64 mask = ((u64)1 << position.second) - 1;
cell mask = ((cell)1 << position.second) - 1;
cell new_line_number = approx_popcount + popcount(marked[position.first] & mask);
Block *new_block = line_block(new_line_number);
@ -147,13 +149,13 @@ template<typename Block> struct mark_bits {
for(cell index = position.first; index < bits_size; index++)
{
u64 mask = ((s64)marked[index] >> bit_index);
cell mask = ((fixnum)marked[index] >> bit_index);
if(~mask)
{
/* Found an unmarked block on this page.
Stop, it's hammer time */
cell clear_bit = rightmost_clear_bit(mask);
return line_block(index * 64 + bit_index + clear_bit);
return line_block(index * mark_bits_granularity + bit_index + clear_bit);
}
else
{
@ -174,13 +176,13 @@ template<typename Block> struct mark_bits {
for(cell index = position.first; index < bits_size; index++)
{
u64 mask = (marked[index] >> bit_index);
cell mask = (marked[index] >> bit_index);
if(mask)
{
/* Found an marked block on this page.
Stop, it's hammer time */
cell set_bit = rightmost_set_bit(mask);
return line_block(index * 64 + bit_index + set_bit);
return line_block(index * mark_bits_granularity + bit_index + set_bit);
}
else
{

1
vm/master.hpp
View File

@ -44,6 +44,7 @@ namespace factor
#include "segments.hpp"
#include "contexts.hpp"
#include "run.hpp"
#include "objects.hpp"
#include "profiler.hpp"
#include "errors.hpp"
#include "bignumint.hpp"

7
vm/object_start_map.cpp
View File

@ -79,11 +79,16 @@ void object_start_map::update_for_sweep(mark_bits<object> *state)
{
for(cell index = 0; index < state->bits_size; index++)
{
u64 mask = state->marked[index];
cell mask = state->marked[index];
#ifdef FACTOR_64
update_card_for_sweep(index * 4, mask & 0xffff);
update_card_for_sweep(index * 4 + 1, (mask >> 16) & 0xffff);
update_card_for_sweep(index * 4 + 2, (mask >> 32) & 0xffff);
update_card_for_sweep(index * 4 + 3, (mask >> 48) & 0xffff);
#else
update_card_for_sweep(index * 2, mask & 0xffff);
update_card_for_sweep(index * 2 + 1, (mask >> 16) & 0xffff);
#endif
}
}

138
vm/objects.cpp Normal file
View File

@ -0,0 +1,138 @@
#include "master.hpp"
namespace factor
{
void factor_vm::primitive_special_object()
{
fixnum e = untag_fixnum(dpeek());
drepl(special_objects[e]);
}
void factor_vm::primitive_set_special_object()
{
fixnum e = untag_fixnum(dpop());
cell value = dpop();
special_objects[e] = value;
}
void factor_vm::primitive_set_slot()
{
fixnum slot = untag_fixnum(dpop());
object *obj = untag<object>(dpop());
cell value = dpop();
cell *slot_ptr = &obj->slots()[slot];
*slot_ptr = value;
write_barrier(slot_ptr);
}
cell factor_vm::clone_object(cell obj_)
{
data_root<object> obj(obj_,this);
if(immediate_p(obj.value()))
return obj.value();
else
{
cell size = object_size(obj.value());
object *new_obj = allot_object(header(obj.type()),size);
memcpy(new_obj,obj.untagged(),size);
return tag_dynamic(new_obj);
}
}
void factor_vm::primitive_clone()
{
drepl(clone_object(dpeek()));
}
/* Size of the object pointed to by a tagged pointer */
cell factor_vm::object_size(cell tagged)
{
if(immediate_p(tagged))
return 0;
else
return untag<object>(tagged)->size();
}
void factor_vm::primitive_size()
{
box_unsigned_cell(object_size(dpop()));
}
struct slot_become_visitor {
std::map<object *,object *> *become_map;
explicit slot_become_visitor(std::map<object *,object *> *become_map_) :
become_map(become_map_) {}
object *operator()(object *old)
{
std::map<object *,object *>::const_iterator iter = become_map->find(old);
if(iter != become_map->end())
return iter->second;
else
return old;
}
};
struct object_become_visitor {
slot_visitor<slot_become_visitor> *workhorse;
explicit object_become_visitor(slot_visitor<slot_become_visitor> *workhorse_) :
workhorse(workhorse_) {}
void operator()(object *obj)
{
workhorse->visit_slots(obj);
}
};
/* classes.tuple uses this to reshape tuples; tools.deploy.shaker uses this
to coalesce equal but distinct quotations and wrappers. */
void factor_vm::primitive_become()
{
array *new_objects = untag_check<array>(dpop());
array *old_objects = untag_check<array>(dpop());
cell capacity = array_capacity(new_objects);
if(capacity != array_capacity(old_objects))
critical_error("bad parameters to become",0);
/* Build the forwarding map */
std::map<object *,object *> become_map;
for(cell i = 0; i < capacity; i++)
{
tagged<object> old_obj(array_nth(old_objects,i));
tagged<object> new_obj(array_nth(new_objects,i));
if(old_obj != new_obj)
become_map[old_obj.untagged()] = new_obj.untagged();
}
/* Update all references to old objects to point to new objects */
slot_visitor<slot_become_visitor> workhorse(this,slot_become_visitor(&become_map));
workhorse.visit_roots();
workhorse.visit_contexts();
object_become_visitor object_visitor(&workhorse);
each_object(object_visitor);
/* Since we may have introduced old->new references, need to revisit
all objects on a minor GC. */
data->mark_all_cards();
primitive_minor_gc();
/* If a word's definition quotation was in old_objects and the
quotation in new_objects is not compiled, we might leak memory
by referencing the old quotation unless we recompile all
unoptimized words. */
compile_all_words();
/* Update references to old objects in the code heap */
update_code_heap_words_and_literals();
}
}

101
vm/objects.hpp Normal file
View File

@ -0,0 +1,101 @@
namespace factor
{
static const cell special_object_count = 70;
enum special_object {
OBJ_NAMESTACK, /* used by library only */
OBJ_CATCHSTACK, /* used by library only, per-callback */
OBJ_CURRENT_CALLBACK = 2, /* used by library only, per-callback */
OBJ_WALKER_HOOK, /* non-local exit hook, used by library only */
OBJ_CALLCC_1, /* used to pass the value in callcc1 */
OBJ_BREAK = 5, /* quotation called by throw primitive */
OBJ_ERROR, /* a marker consed onto kernel errors */
OBJ_CELL_SIZE = 7, /* sizeof(cell) */
OBJ_CPU, /* CPU architecture */
OBJ_OS, /* operating system name */
OBJ_ARGS = 10, /* command line arguments */
OBJ_STDIN, /* stdin FILE* handle */
OBJ_STDOUT, /* stdout FILE* handle */
OBJ_IMAGE = 13, /* image path name */
OBJ_EXECUTABLE, /* runtime executable path name */
OBJ_EMBEDDED = 15, /* are we embedded in another app? */
OBJ_EVAL_CALLBACK, /* used when Factor is embedded in a C app */
OBJ_YIELD_CALLBACK, /* used when Factor is embedded in a C app */
OBJ_SLEEP_CALLBACK, /* used when Factor is embedded in a C app */
OBJ_COCOA_EXCEPTION = 19, /* Cocoa exception handler quotation */
OBJ_BOOT = 20, /* boot quotation */
OBJ_GLOBAL, /* global namespace */
/* Quotation compilation in quotations.c */
JIT_PROLOG = 23,
JIT_PRIMITIVE_WORD,
JIT_PRIMITIVE,
JIT_WORD_JUMP,
JIT_WORD_CALL,
JIT_WORD_SPECIAL,
JIT_IF_WORD,
JIT_IF,
JIT_EPILOG,
JIT_RETURN,
JIT_PROFILING,
JIT_PUSH_IMMEDIATE,
JIT_DIP_WORD,
JIT_DIP,
JIT_2DIP_WORD,
JIT_2DIP,
JIT_3DIP_WORD,
JIT_3DIP,
JIT_EXECUTE_WORD,
JIT_EXECUTE_JUMP,
JIT_EXECUTE_CALL,
JIT_DECLARE_WORD,
/* Callback stub generation in callbacks.c */
CALLBACK_STUB = 45,
/* Polymorphic inline cache generation in inline_cache.c */
PIC_LOAD = 47,
PIC_TAG,
PIC_TUPLE,
PIC_CHECK_TAG,
PIC_CHECK_TUPLE,
PIC_HIT,
PIC_MISS_WORD,
PIC_MISS_TAIL_WORD,
/* Megamorphic cache generation in dispatch.c */
MEGA_LOOKUP = 57,
MEGA_LOOKUP_WORD,
MEGA_MISS_WORD,
OBJ_UNDEFINED = 60, /* default quotation for undefined words */
OBJ_STDERR = 61, /* stderr FILE* handle */
OBJ_STAGE2 = 62, /* have we bootstrapped? */
OBJ_CURRENT_THREAD = 63,
OBJ_THREADS = 64,
OBJ_RUN_QUEUE = 65,
OBJ_SLEEP_QUEUE = 66,
};
#define OBJ_FIRST_SAVE OBJ_BOOT
#define OBJ_LAST_SAVE OBJ_STAGE2
inline static bool save_env_p(cell i)
{
return (i >= OBJ_FIRST_SAVE && i <= OBJ_LAST_SAVE);
}
}

16
vm/primitives.cpp
View File

@ -49,8 +49,8 @@ PRIMITIVE_FORWARD(float_greater)
PRIMITIVE_FORWARD(float_greatereq)
PRIMITIVE_FORWARD(word)
PRIMITIVE_FORWARD(word_xt)
PRIMITIVE_FORWARD(getenv)
PRIMITIVE_FORWARD(setenv)
PRIMITIVE_FORWARD(special_object)
PRIMITIVE_FORWARD(set_special_object)
PRIMITIVE_FORWARD(existsp)
PRIMITIVE_FORWARD(minor_gc)
PRIMITIVE_FORWARD(full_gc)
@ -82,9 +82,7 @@ PRIMITIVE_FORWARD(set_string_nth_slow)
PRIMITIVE_FORWARD(resize_array)
PRIMITIVE_FORWARD(resize_string)
PRIMITIVE_FORWARD(array)
PRIMITIVE_FORWARD(begin_scan)
PRIMITIVE_FORWARD(next_object)
PRIMITIVE_FORWARD(end_scan)
PRIMITIVE_FORWARD(all_instances)
PRIMITIVE_FORWARD(size)
PRIMITIVE_FORWARD(die)
PRIMITIVE_FORWARD(fopen)
@ -185,8 +183,8 @@ const primitive_type primitives[] = {
primitive_float_greatereq,
primitive_word,
primitive_word_xt,
primitive_getenv,
primitive_setenv,
primitive_special_object,
primitive_set_special_object,
primitive_existsp,
primitive_minor_gc,
primitive_full_gc,
@ -244,9 +242,7 @@ const primitive_type primitives[] = {
primitive_resize_array,
primitive_resize_string,
primitive_array,
primitive_begin_scan,
primitive_next_object,
primitive_end_scan,
primitive_all_instances,
primitive_size,
primitive_die,
primitive_fopen,

2
vm/quotations.cpp
View File

@ -341,8 +341,6 @@ void factor_vm::compile_all_words()
update_word_xt(word.untagged());
}
update_code_heap_words();
}
/* Allocates memory */

52
vm/run.cpp
View File

@ -3,19 +3,6 @@
namespace factor
{
void factor_vm::primitive_getenv()
{
fixnum e = untag_fixnum(dpeek());
drepl(special_objects[e]);
}
void factor_vm::primitive_setenv()
{
fixnum e = untag_fixnum(dpop());
cell value = dpop();
special_objects[e] = value;
}
void factor_vm::primitive_exit()
{
exit(to_fixnum(dpop()));
@ -31,43 +18,4 @@ void factor_vm::primitive_sleep()
sleep_micros(to_cell(dpop()));
}
void factor_vm::primitive_set_slot()
{
fixnum slot = untag_fixnum(dpop());
object *obj = untag<object>(dpop());
cell value = dpop();
cell *slot_ptr = &obj->slots()[slot];
*slot_ptr = value;
write_barrier(slot_ptr);
}
void factor_vm::primitive_load_locals()
{
fixnum count = untag_fixnum(dpop());
memcpy((cell *)(rs + sizeof(cell)),(cell *)(ds - sizeof(cell) * (count - 1)),sizeof(cell) * count);
ds -= sizeof(cell) * count;
rs += sizeof(cell) * count;
}
cell factor_vm::clone_object(cell obj_)
{
data_root<object> obj(obj_,this);
if(immediate_p(obj.value()))
return obj.value();
else
{
cell size = object_size(obj.value());
object *new_obj = allot_object(header(obj.type()),size);
memcpy(new_obj,obj.untagged(),size);
return tag_dynamic(new_obj);
}
}
void factor_vm::primitive_clone()
{
drepl(clone_object(dpeek()));
}
}

99
vm/run.hpp
View File

@ -1,103 +1,4 @@
namespace factor
{
static const cell special_object_count = 70;
enum special_object {
OBJ_NAMESTACK, /* used by library only */
OBJ_CATCHSTACK, /* used by library only, per-callback */
OBJ_CURRENT_CALLBACK = 2, /* used by library only, per-callback */
OBJ_WALKER_HOOK, /* non-local exit hook, used by library only */
OBJ_CALLCC_1, /* used to pass the value in callcc1 */
OBJ_BREAK = 5, /* quotation called by throw primitive */
OBJ_ERROR, /* a marker consed onto kernel errors */
OBJ_CELL_SIZE = 7, /* sizeof(cell) */
OBJ_CPU, /* CPU architecture */
OBJ_OS, /* operating system name */
OBJ_ARGS = 10, /* command line arguments */
OBJ_STDIN, /* stdin FILE* handle */
OBJ_STDOUT, /* stdout FILE* handle */
OBJ_IMAGE = 13, /* image path name */
OBJ_EXECUTABLE, /* runtime executable path name */
OBJ_EMBEDDED = 15, /* are we embedded in another app? */
OBJ_EVAL_CALLBACK, /* used when Factor is embedded in a C app */
OBJ_YIELD_CALLBACK, /* used when Factor is embedded in a C app */
OBJ_SLEEP_CALLBACK, /* used when Factor is embedded in a C app */
OBJ_COCOA_EXCEPTION = 19, /* Cocoa exception handler quotation */
OBJ_BOOT = 20, /* boot quotation */
OBJ_GLOBAL, /* global namespace */
/* Quotation compilation in quotations.c */
JIT_PROLOG = 23,
JIT_PRIMITIVE_WORD,
JIT_PRIMITIVE,
JIT_WORD_JUMP,
JIT_WORD_CALL,
JIT_WORD_SPECIAL,
JIT_IF_WORD,
JIT_IF,
JIT_EPILOG,
JIT_RETURN,
JIT_PROFILING,
JIT_PUSH_IMMEDIATE,
JIT_DIP_WORD,
JIT_DIP,
JIT_2DIP_WORD,
JIT_2DIP,
JIT_3DIP_WORD,
JIT_3DIP,
JIT_EXECUTE_WORD,
JIT_EXECUTE_JUMP,
JIT_EXECUTE_CALL,
JIT_DECLARE_WORD,
/* Callback stub generation in callbacks.c */
CALLBACK_STUB = 45,
/* Polymorphic inline cache generation in inline_cache.c */
PIC_LOAD = 47,
PIC_TAG,
PIC_TUPLE,
PIC_CHECK_TAG,
PIC_CHECK_TUPLE,
PIC_HIT,
PIC_MISS_WORD,
PIC_MISS_TAIL_WORD,
/* Megamorphic cache generation in dispatch.c */
MEGA_LOOKUP = 57,
MEGA_LOOKUP_WORD,
MEGA_MISS_WORD,
OBJ_UNDEFINED = 60, /* default quotation for undefined words */
OBJ_STDERR = 61, /* stderr FILE* handle */
OBJ_STAGE2 = 62, /* have we bootstrapped? */
OBJ_CURRENT_THREAD = 63,
OBJ_THREADS = 64,
OBJ_RUN_QUEUE = 65,
OBJ_SLEEP_QUEUE = 66,
};
#define OBJ_FIRST_SAVE OBJ_BOOT
#define OBJ_LAST_SAVE OBJ_STAGE2
inline static bool save_env_p(cell i)
{
return (i >= OBJ_FIRST_SAVE && i <= OBJ_LAST_SAVE);
}
}

61
vm/vm.hpp
View File

@ -40,10 +40,6 @@ struct factor_vm
unsigned int signal_fpu_status;
stack_frame *signal_callstack_top;
/* A heap walk allows useful things to be done, like finding all
references to an object for debugging purposes. */
cell heap_scan_ptr;
/* GC is off during heap walking */
bool gc_off;
@ -102,6 +98,7 @@ struct factor_vm
void primitive_set_datastack();
void primitive_set_retainstack();
void primitive_check_datastack();
void primitive_load_locals();
template<typename Iterator> void iterate_active_frames(Iterator &iter)
{
@ -116,15 +113,18 @@ struct factor_vm
}
// run
void primitive_getenv();
void primitive_setenv();
void primitive_exit();
void primitive_micros();
void primitive_sleep();
void primitive_set_slot();
void primitive_load_locals();
// objects
void primitive_special_object();
void primitive_set_special_object();
cell object_size(cell tagged);
cell clone_object(cell obj_);
void primitive_clone();
void primitive_become();
// profiler
void init_profiler();
@ -220,20 +220,30 @@ struct factor_vm
void primitive_data_room();
void begin_scan();
void end_scan();
void primitive_begin_scan();
cell next_object();
void primitive_next_object();
void primitive_end_scan();
cell instances(cell type);
void primitive_all_instances();
cell find_all_words();
cell object_size(cell tagged);
template<typename Generation, typename Iterator>
inline void each_object(Generation *gen, Iterator &iterator)
{
cell obj = gen->first_object();
while(obj)
{
iterator((object *)obj);
obj = gen->next_object_after(obj);
}
}
template<typename Iterator> inline void each_object(Iterator &iterator)
{
begin_scan();
cell obj;
while(to_boolean(obj = next_object()))
iterator(obj);
end_scan();
gc_off = true;
each_object(data->tenured,iterator);
each_object(data->aging,iterator);
each_object(data->nursery,iterator);
gc_off = false;
}
/* the write barrier must be called any time we are potentially storing a
@ -244,6 +254,13 @@ struct factor_vm
*(char *)(decks_offset + ((cell)slot_ptr >> deck_bits)) = card_mark_mask;
}
inline void write_barrier(object *obj, cell size)
{
char *start = (char *)obj;
for(cell offset = 0; offset < size; offset += card_size)
write_barrier((cell *)(start + offset));
}
// gc
void end_gc();
void start_gc_again();
@ -264,7 +281,6 @@ struct factor_vm
void primitive_minor_gc();
void primitive_full_gc();
void primitive_compact_gc();
void primitive_become();
void inline_gc(cell *data_roots_base, cell data_roots_size);
void primitive_enable_gc_events();
void primitive_disable_gc_events();
@ -508,7 +524,6 @@ struct factor_vm
void jit_compile_word(cell word_, cell def_, bool relocate);
void update_code_heap_words();
void update_code_heap_words_and_literals();
void relocate_code_heap();
void primitive_modify_code_heap();
code_heap_room code_room();
void primitive_code_room();
@ -568,11 +583,11 @@ struct factor_vm
/* Every object has a regular representation in the runtime, which makes GC
much simpler. Every slot of the object until binary_payload_start is a pointer
to some other object. */
template<typename Iterator> void do_slots(cell obj, Iterator &iter)
template<typename Iterator> void do_slots(object *obj, Iterator &iter)
{
cell scan = obj;
cell payload_start = ((object *)obj)->binary_payload_start();
cell end = obj + payload_start;
cell scan = (cell)obj;
cell payload_start = obj->binary_payload_start();
cell end = scan + payload_start;
scan += sizeof(cell);