/
image.factor
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image.factor
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! Copyright (C) 2004, 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: alien arrays byte-arrays generic assocs hashtables assocs
hashtables.private io io.binary io.files io.encodings.binary
io.pathnames kernel kernel.private math namespaces make parser
prettyprint sequences sequences.private strings sbufs
vectors words quotations assocs system layouts splitting
grouping growable classes classes.builtin classes.tuple
classes.tuple.private words.private vocabs
vocabs.loader source-files definitions debugger
quotations.private sequences.private combinators
math.order math.private accessors
slots.private compiler.units ;
IN: bootstrap.image
: arch ( os cpu -- arch )
{
{ "ppc" [ "-ppc" append ] }
{ "x86.64" [ "winnt" = "winnt" "unix" ? "-x86.64" append ] }
[ nip ]
} case ;
: my-arch ( -- arch )
os name>> cpu name>> arch ;
: boot-image-name ( arch -- string )
"boot." ".image" surround ;
: my-boot-image-name ( -- string )
my-arch boot-image-name ;
: images ( -- seq )
{
"x86.32"
"winnt-x86.64" "unix-x86.64"
"linux-ppc" "macosx-ppc"
} ;
<PRIVATE
! Object cache; we only consider numbers equal if they have the
! same type
TUPLE: id obj ;
C: <id> id
M: id hashcode* obj>> hashcode* ;
GENERIC: (eql?) ( obj1 obj2 -- ? )
: eql? ( obj1 obj2 -- ? )
[ (eql?) ] [ [ class ] bi@ = ] 2bi and ;
M: integer (eql?) = ;
M: sequence (eql?)
over sequence? [
2dup [ length ] bi@ =
[ [ eql? ] 2all? ] [ 2drop f ] if
] [ 2drop f ] if ;
M: object (eql?) = ;
M: id equal?
over id? [ [ obj>> ] bi@ eql? ] [ 2drop f ] if ;
SYMBOL: objects
: (objects) ( obj -- id assoc ) <id> objects get ; inline
: lookup-object ( obj -- n/f ) (objects) at ;
: put-object ( n obj -- ) (objects) set-at ;
: cache-object ( obj quot -- value )
[ (objects) ] dip [ obj>> ] prepose cache ; inline
! Constants
: image-magic HEX: 0f0e0d0c ; inline
: image-version 4 ; inline
: data-base 1024 ; inline
: userenv-size 70 ; inline
: header-size 10 ; inline
: data-heap-size-offset 3 ; inline
: t-offset 6 ; inline
: 0-offset 7 ; inline
: 1-offset 8 ; inline
: -1-offset 9 ; inline
SYMBOL: sub-primitives
: make-jit ( quot rc rt offset -- quad )
{ [ { } make ] [ ] [ ] [ ] } spread 4array ; inline
: jit-define ( quot rc rt offset name -- )
[ make-jit ] dip set ; inline
: define-sub-primitive ( quot rc rt offset word -- )
[ make-jit ] dip sub-primitives get set-at ;
! The image being constructed; a vector of word-size integers
SYMBOL: image
! Image output format
SYMBOL: big-endian
! Bootstrap architecture name
SYMBOL: architecture
! Bootstrap global namesapce
SYMBOL: bootstrap-global
! Boot quotation, set in stage1.factor
SYMBOL: bootstrap-boot-quot
! JIT parameters
SYMBOL: jit-code-format
SYMBOL: jit-prolog
SYMBOL: jit-primitive-word
SYMBOL: jit-primitive
SYMBOL: jit-word-jump
SYMBOL: jit-word-call
SYMBOL: jit-push-immediate
SYMBOL: jit-if-word
SYMBOL: jit-if-1
SYMBOL: jit-if-2
SYMBOL: jit-dispatch-word
SYMBOL: jit-dispatch
SYMBOL: jit-dip-word
SYMBOL: jit-dip
SYMBOL: jit-2dip-word
SYMBOL: jit-2dip
SYMBOL: jit-3dip-word
SYMBOL: jit-3dip
SYMBOL: jit-epilog
SYMBOL: jit-return
SYMBOL: jit-profiling
SYMBOL: jit-declare-word
SYMBOL: jit-save-stack
! Default definition for undefined words
SYMBOL: undefined-quot
: userenvs ( -- assoc )
H{
{ bootstrap-boot-quot 20 }
{ bootstrap-global 21 }
{ jit-code-format 22 }
{ jit-prolog 23 }
{ jit-primitive-word 24 }
{ jit-primitive 25 }
{ jit-word-jump 26 }
{ jit-word-call 27 }
{ jit-if-word 28 }
{ jit-if-1 29 }
{ jit-if-2 30 }
{ jit-dispatch-word 31 }
{ jit-dispatch 32 }
{ jit-epilog 33 }
{ jit-return 34 }
{ jit-profiling 35 }
{ jit-push-immediate 36 }
{ jit-declare-word 42 }
{ jit-save-stack 43 }
{ jit-dip-word 44 }
{ jit-dip 45 }
{ jit-2dip-word 46 }
{ jit-2dip 47 }
{ jit-3dip-word 48 }
{ jit-3dip 49 }
{ undefined-quot 60 }
} ; inline
: userenv-offset ( symbol -- n )
userenvs at header-size + ;
: emit ( cell -- ) image get push ;
: emit-64 ( cell -- )
bootstrap-cell 8 = [
emit
] [
d>w/w big-endian get [ swap ] unless emit emit
] if ;
: emit-seq ( seq -- ) image get push-all ;
: fixup ( value offset -- ) image get set-nth ;
: heap-size ( -- size )
image get length header-size - userenv-size -
bootstrap-cells ;
: here ( -- size ) heap-size data-base + ;
: here-as ( tag -- pointer ) here bitor ;
: align-here ( -- )
here 8 mod 4 = [ 0 emit ] when ;
: emit-fixnum ( n -- ) tag-fixnum emit ;
: emit-object ( header tag quot -- addr )
swap here-as [ swap tag-fixnum emit call align-here ] dip ;
inline
! Write an object to the image.
GENERIC: ' ( obj -- ptr )
! Image header
: emit-header ( -- )
image-magic emit
image-version emit
data-base emit ! relocation base at end of header
0 emit ! size of data heap set later
0 emit ! reloc base of code heap is 0
0 emit ! size of code heap is 0
0 emit ! pointer to t object
0 emit ! pointer to bignum 0
0 emit ! pointer to bignum 1
0 emit ! pointer to bignum -1
userenv-size [ f ' emit ] times ;
: emit-userenv ( symbol -- )
[ get ' ] [ userenv-offset ] bi fixup ;
! Bignums
: bignum-bits ( -- n ) bootstrap-cell-bits 2 - ;
: bignum-radix ( -- n ) bignum-bits 2^ 1- ;
: bignum>seq ( n -- seq )
#! n is positive or zero.
[ dup 0 > ]
[ [ bignum-bits neg shift ] [ bignum-radix bitand ] bi ]
[ ] produce nip ;
: emit-bignum ( n -- )
dup dup 0 < [ neg ] when bignum>seq
[ nip length 1+ emit-fixnum ]
[ drop 0 < 1 0 ? emit ]
[ nip emit-seq ]
2tri ;
M: bignum '
[
bignum tag-number dup [ emit-bignum ] emit-object
] cache-object ;
! Fixnums
M: fixnum '
#! When generating a 32-bit image on a 64-bit system,
#! some fixnums should be bignums.
dup
bootstrap-most-negative-fixnum
bootstrap-most-positive-fixnum between?
[ tag-fixnum ] [ >bignum ' ] if ;
TUPLE: fake-bignum n ;
C: <fake-bignum> fake-bignum
M: fake-bignum ' n>> tag-fixnum ;
! Floats
M: float '
[
float tag-number dup [
align-here double>bits emit-64
] emit-object
] cache-object ;
! Special objects
! Padded with fixnums for 8-byte alignment
: t, ( -- ) t t-offset fixup ;
M: f '
#! f is #define F RETAG(0,F_TYPE)
drop \ f tag-number ;
: 0, ( -- ) 0 >bignum ' 0-offset fixup ;
: 1, ( -- ) 1 >bignum ' 1-offset fixup ;
: -1, ( -- ) -1 >bignum ' -1-offset fixup ;
! Words
: word-sub-primitive ( word -- obj )
global [ target-word ] bind sub-primitives get at ;
: emit-word ( word -- )
[
[ subwords [ emit-word ] each ]
[
[
{
[ hashcode <fake-bignum> , ]
[ name>> , ]
[ vocabulary>> , ]
[ def>> , ]
[ props>> , ]
[ drop f , ]
[ drop 0 , ] ! count
[ word-sub-primitive , ]
[ drop 0 , ] ! xt
[ drop 0 , ] ! code
[ drop 0 , ] ! profiling
} cleave
] { } make [ ' ] map
] bi
\ word type-number object tag-number
[ emit-seq ] emit-object
] keep put-object ;
: word-error ( word msg -- * )
[ % dup vocabulary>> % " " % name>> % ] "" make throw ;
: transfer-word ( word -- word )
[ target-word ] keep or ;
: fixup-word ( word -- offset )
transfer-word dup lookup-object
[ ] [ "Not in image: " word-error ] ?if ;
: fixup-words ( -- )
image get [ dup word? [ fixup-word ] when ] change-each ;
M: word ' ;
! Wrappers
M: wrapper '
wrapped>> ' wrapper type-number object tag-number
[ emit ] emit-object ;
! Strings
: emit-bytes ( seq -- )
bootstrap-cell <groups>
big-endian get [ [ be> ] map ] [ [ le> ] map ] if
emit-seq ;
: pad-bytes ( seq -- newseq )
dup length bootstrap-cell align 0 pad-right ;
: check-string ( string -- )
[ 127 > ] contains?
[ "Bootstrap cannot emit non-ASCII strings" throw ] when ;
: emit-string ( string -- ptr )
dup check-string
string type-number object tag-number [
dup length emit-fixnum
f ' emit
f ' emit
pad-bytes emit-bytes
] emit-object ;
M: string '
#! We pool strings so that each string is only written once
#! to the image
[ emit-string ] cache-object ;
: assert-empty ( seq -- )
length 0 assert= ;
: emit-dummy-array ( obj type -- ptr )
[ assert-empty ] [
type-number object tag-number
[ 0 emit-fixnum ] emit-object
] bi* ;
M: byte-array '
byte-array type-number object tag-number [
dup length emit-fixnum
pad-bytes emit-bytes
] emit-object ;
! Tuples
: (emit-tuple) ( tuple -- pointer )
[ tuple-slots ]
[ class transfer-word tuple-layout ] bi prefix [ ' ] map
tuple type-number dup [ emit-seq ] emit-object ;
: emit-tuple ( tuple -- pointer )
dup class name>> "tombstone" =
[ [ (emit-tuple) ] cache-object ] [ (emit-tuple) ] if ;
M: tuple ' emit-tuple ;
M: tombstone '
state>> "((tombstone))" "((empty))" ?
"hashtables.private" lookup def>> first
[ emit-tuple ] cache-object ;
! Arrays
: emit-array ( array -- offset )
[ ' ] map array type-number object tag-number
[ [ length emit-fixnum ] [ emit-seq ] bi ] emit-object ;
M: array ' emit-array ;
! This is a hack. We need to detect arrays which are tuple
! layout arrays so that they can be internalized, but making
! them a built-in type is not worth it.
PREDICATE: tuple-layout-array < array
dup length 5 >= [
[ first tuple-class? ]
[ second fixnum? ]
[ third fixnum? ]
tri and and
] [ drop f ] if ;
M: tuple-layout-array '
[
[ dup integer? [ <fake-bignum> ] when ] map
emit-array
] cache-object ;
! Quotations
M: quotation '
[
array>> '
quotation type-number object tag-number [
emit ! array
f ' emit ! compiled
0 emit ! xt
0 emit ! code
] emit-object
] cache-object ;
! End of the image
: emit-words ( -- )
all-words [ emit-word ] each ;
: emit-global ( -- )
{
dictionary source-files builtins
update-map implementors-map
} [ [ bootstrap-word ] [ get ] bi ] H{ } map>assoc
{
class<=-cache class-not-cache classes-intersect-cache
class-and-cache class-or-cache next-method-quot-cache
} [ H{ } clone ] H{ } map>assoc assoc-union
bootstrap-global set
bootstrap-global emit-userenv ;
: emit-boot-quot ( -- )
bootstrap-boot-quot emit-userenv ;
: emit-jit-data ( -- )
\ if jit-if-word set
\ dispatch jit-dispatch-word set
\ do-primitive jit-primitive-word set
\ declare jit-declare-word set
\ dip jit-dip-word set
\ 2dip jit-2dip-word set
\ 3dip jit-3dip-word set
[ undefined ] undefined-quot set
{
jit-code-format
jit-prolog
jit-primitive-word
jit-primitive
jit-word-jump
jit-word-call
jit-push-immediate
jit-if-word
jit-if-1
jit-if-2
jit-dispatch-word
jit-dispatch
jit-dip-word
jit-dip
jit-2dip-word
jit-2dip
jit-3dip-word
jit-3dip
jit-epilog
jit-return
jit-profiling
jit-declare-word
jit-save-stack
undefined-quot
} [ emit-userenv ] each ;
: fixup-header ( -- )
heap-size data-heap-size-offset fixup ;
: build-image ( -- image )
800000 <vector> image set
20000 <hashtable> objects set
emit-header t, 0, 1, -1,
"Building generic words..." print flush
call-remake-generics-hook
"Serializing words..." print flush
emit-words
"Serializing JIT data..." print flush
emit-jit-data
"Serializing global namespace..." print flush
emit-global
"Serializing boot quotation..." print flush
emit-boot-quot
"Performing word fixups..." print flush
fixup-words
"Performing header fixups..." print flush
fixup-header
"Image length: " write image get length .
"Object cache size: " write objects get assoc-size .
\ word global delete-at
image get ;
! Image output
: (write-image) ( image -- )
bootstrap-cell big-endian get [
[ >be write ] curry each
] [
[ >le write ] curry each
] if ;
: write-image ( image -- )
"Writing image to " write
architecture get boot-image-name resource-path
[ write "..." print flush ]
[ binary [ (write-image) ] with-file-writer ] bi ;
PRIVATE>
: make-image ( arch -- )
[
architecture set
"resource:/core/bootstrap/stage1.factor" run-file
build-image
write-image
] with-scope ;
: make-images ( -- )
images [ make-image ] each ;