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Carl Shapiro
cmucl
Commits
b0a787c4
Commit
b0a787c4
authored
34 years ago
by
wlott
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compiler/generic/core.lisp
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b0a787c4
;;; -*- Package: C; Log: C.Log -*-
;;;
;;; **********************************************************************
;;; This code was written as part of the Spice Lisp project at
;;; Carnegie-Mellon University, and has been placed in the public domain.
;;; If you want to use this code or any part of Spice Lisp, please contact
;;; Scott Fahlman (FAHLMAN@CMUC).
;;; **********************************************************************
;;;
;;;
;;; This file contains stuff that knows how to load compiled code directly
;;; into core, e.g. incremental compilation.
;;;
(
in-package
'c
)
;;; The CORE-OBJECT structure holds the state needed to resolve cross-component
;;; references during in-core compilation.
;;;
(
defstruct
(
core-object
(
:constructor
make-core-object
())
(
:print-function
(
lambda
(
s
stream
d
)
(
declare
(
ignore
s
d
))
(
format
stream
"#<Core-Object>"
))))
;;
;; A hashtable translating ENTRY-INFO structures to the corresponding actual
;; FUNCTIONs for functions in this compilation.
(
entry-table
(
make-hash-table
:test
#'
eq
)
:type
hash-table
)
;;
;; A list of all the DEBUG-INFO objects created, kept so that we can
;; backpatch with the source info.
(
debug-info
()
:type
list
))
;;; MAKE-FUNCTION-ENTRY -- Internal
;;;
;;; Make a function entry, filling in slots from the ENTRY-INFO.
;;;
(
defun
make-function-entry
(
entry
code-obj
object
)
(
declare
(
type
entry-info
entry
)
(
type
core-object
object
))
(
let
((
offset
(
label-position
(
entry-info-offset
entry
))))
(
declare
(
type
index
offset
))
(
unless
(
zerop
(
logand
offset
vm:lowtag-mask
))
(
error
"Unaligned function object, offset = #x~X."
offset
))
(
let
((
res
(
%primitive
compute-function
code-obj
offset
)))
(
%primitive
set-function-self
res
res
)
(
%primitive
set-function-next
res
(
%primitive
code-entry-points
code-obj
))
(
%primitive
set-code-entry-points
code-obj
res
)
(
%primitive
set-function-name
res
(
entry-info-name
entry
))
(
%primitive
set-function-arglist
res
(
entry-info-arguments
entry
))
(
%primitive
set-function-type
res
(
entry-info-type
entry
))
(
setf
(
gethash
entry
(
core-object-entry-table
object
))
res
)))
(
undefined-value
))
;;; CORE-FUNCTION-OR-LOSE -- Internal
;;;
;;; Get the function for a function entry that has been dumped to core.
;;;
(
defun
core-function-or-lose
(
fun
object
)
(
declare
(
type
clambda
fun
)
(
type
core-object
object
))
(
let
((
res
(
gethash
(
leaf-info
fun
)
(
core-object-entry-table
object
))))
(
assert
res
()
"Unresolved forward function reference?"
)
res
))
;;; DO-CORE-FIXUPS -- Internal
;;;
;;; Do "load-time" fixups on the code vector.
;;;
(
defun
do-core-fixups
(
code
fixups
)
(
declare
(
list
fixups
))
(
dolist
(
info
fixups
)
(
let*
((
kind
(
first
info
))
(
fixup
(
second
info
))
(
name
(
fixup-name
fixup
))
(
flavor
(
fixup-flavor
fixup
))
(
offset
(
third
info
)))
(
ecase
kind
(
:addi
;; ### The lui fixup assumes that an addi follows it.
)
(
:lui
(
ecase
flavor
(
:assembly-routine
(
assert
(
symbolp
name
))
(
multiple-value-bind
(
value
found
)
(
gethash
name
lisp::*assembler-routines*
)
(
unless
found
(
error
"Undefined assembler routine: ~S"
name
))
(
lisp::fixup-code-object
code
offset
value
)))
(
:foreign
(
assert
(
stringp
name
))
(
multiple-value-bind
(
value
found
)
(
gethash
name
lisp::*foreign-symbols*
0
)
(
unless
found
(
error
"Unknown foreign symbol: ~S"
name
))
(
lisp::fixup-code-object
code
offset
value
)))))
#+
nil
(
:jump
;; ### Need to impliment this.
)))))
;;; MAKE-CORE-COMPONENT -- Interface
;;;
;;; Dump a component to core. We pass in the assembler fixups, code vector
;;; and node info.
;;;
(
defun
make-core-component
(
component
segment
length
object
)
(
declare
(
type
component
component
)
(
type
index
length
)
(
type
core-object
object
))
(
without-gcing
(
let*
((
2comp
(
component-info
component
))
(
constants
(
ir2-component-constants
2comp
))
(
box-num
(
-
(
length
constants
)
vm:code-constants-offset
))
(
code-obj
(
%primitive
allocate-code-object
box-num
length
))
(
fixups
(
emit-code-vector
(
make-code-instruction-stream
code-obj
)
segment
)))
(
do-core-fixups
code-obj
fixups
)
(
dolist
(
entry
(
ir2-component-entries
2comp
))
(
make-function-entry
entry
code-obj
object
))
(
let
((
info
(
debug-info-for-component
component
)))
(
push
info
(
core-object-debug-info
object
))
(
%primitive
set-code-debug-info
code-obj
info
))
(
dotimes
(
i
box-num
)
(
let
((
const
(
aref
constants
(
+
i
vm:code-constants-offset
))))
(
etypecase
const
(
null
)
(
constant
(
%primitive
code-constant-set
code-obj
i
(
constant-value
const
)))
(
list
(
ecase
(
car
const
)
(
:entry
(
%primitive
code-constant-set
code-obj
i
(
core-function-or-lose
(
cdr
const
)
object
)))
#+
nil
(
:label
(
%primitive
header-set
code-obj
i
(
+
(
label-location
(
cdr
const
))
clc::i-vector-header-size
))))))))))
(
undefined-value
))
;;; CORE-CALL-TOP-LEVEL-LAMBDA -- Interface
;;;
;;; Call the top-level lambda function dumped for Entry, returning the
;;; values.
;;;
(
defun
core-call-top-level-lambda
(
entry
object
)
(
declare
(
type
clambda
entry
)
(
type
core-object
object
))
(
funcall
(
core-function-or-lose
entry
object
)))
;;; FIX-CORE-SOURCE-INFO -- Interface
;;;
;;; Backpatch all the DEBUG-INFOs dumped so far with the specified
;;; SOURCE-INFO list.
;;;
(
defun
fix-core-source-info
(
info
object
)
(
declare
(
type
source-info
info
)
(
type
core-object
object
))
(
let
((
res
(
debug-source-for-info
info
)))
(
dolist
(
info
(
core-object-debug-info
object
))
(
setf
(
compiled-debug-info-source
info
)
res
))
(
setf
(
core-object-debug-info
object
)
()))
(
undefined-value
))
;;;; Code-instruction-streams
(
defstruct
(
code-instruction-stream
(
:print-function
%print-code-inst-stream
)
(
:include
stream
(
lisp::sout
#'
code-inst-stream-sout
)
(
lisp::misc
#'
code-inst-stream-misc
))
(
:constructor
make-code-instruction-stream
(
code-object
&aux
(
current
(
truly-the
system-area-pointer
(
%primitive
code-instructions
code-object
)))
(
end
(
sap+
current
(
*
(
%primitive
code-code-size
code-object
)
vm:word-bytes
))))))
code-object
current
end
)
(
defun
%print-code-inst-stream
(
code-inst-stream
stream
depth
)
(
declare
(
ignore
depth
))
(
format
stream
"#<Code Instruction Stream for ~S>"
(
code-instruction-stream-code-object
code-inst-stream
)))
(
defun
code-inst-stream-sout
(
stream
string
start
end
)
(
let*
((
start
(
or
start
0
))
(
end
(
or
end
(
length
string
)))
(
length
(
-
end
start
))
(
current
(
code-instruction-stream-current
stream
))
(
new
(
sap+
current
length
)))
(
when
(
pointer>
new
(
code-instruction-stream-end
stream
))
(
error
"Writing ~D bytes to ~S would cause it to overflow."
length
stream
))
(
copy-to-system-area
string
(
+
(
*
start
vm:byte-bits
)
(
*
vm:vector-data-offset
vm:word-bits
))
current
0
(
*
length
vm:byte-bits
))
(
setf
(
code-instruction-stream-current
stream
)
new
)))
(
defun
code-inst-stream-misc
(
stream
method
&optional
arg1
arg2
)
(
declare
(
ignore
arg1
arg2
))
(
case
method
(
:close
(
lisp::set-closed-flame
stream
))
(
t
nil
)))
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