-! Copyright (C) 2007, 2010 Slava Pestov.
+! Copyright (C) 2007, 2011 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: bootstrap.image.private kernel kernel.private namespaces
system cpu.x86.assembler cpu.x86.assembler.operands layouts
-vocabs parser compiler.constants sequences math math.private
-generic.single.private threads.private ;
+vocabs parser compiler.constants compiler.codegen.relocation
+sequences math math.private generic.single.private
+threads.private locals ;
IN: bootstrap.x86
4 \ cell set
: vm-reg ( -- reg ) EBX ;
: ctx-reg ( -- reg ) EBP ;
: nv-regs ( -- seq ) { ESI EDI EBX } ;
+: volatile-regs ( -- seq ) { EAX ECX EDX } ;
: nv-reg ( -- reg ) ESI ;
: ds-reg ( -- reg ) ESI ;
: rs-reg ( -- reg ) EDI ;
+: link-reg ( -- reg ) EBX ;
: fixnum>slot@ ( -- ) temp0 2 SAR ;
: rex-length ( -- n ) 0 ;
+: red-zone-size ( -- n ) 0 ;
: jit-call ( name -- )
- 0 CALL rc-relative jit-dlsym ;
+ 0 CALL f rc-relative rel-dlsym ;
[
- ! save stack frame size
- stack-frame-size PUSH
- ! push entry point
- 0 PUSH rc-absolute-cell rt-this jit-rel
! alignment
- ESP stack-frame-size 3 bootstrap-cells - SUB
+ ESP stack-frame-size bootstrap-cell - SUB
+ ! store entry point
+ ESP stack-frame-size 3 bootstrap-cells - [+] 0 MOV rc-absolute-cell rel-this
+ ! store stack frame size
+ ESP stack-frame-size 2 bootstrap-cells - [+] stack-frame-size MOV
] jit-prolog jit-define
[
- pic-tail-reg 0 MOV rc-absolute-cell rt-here jit-rel
- 0 JMP rc-relative rt-entry-point-pic-tail jit-rel
+ pic-tail-reg 0 MOV 0 rc-absolute-cell rel-here
+ 0 JMP f rc-relative rel-word-pic-tail
] jit-word-jump jit-define
: jit-load-vm ( -- )
- vm-reg 0 MOV 0 rc-absolute-cell jit-vm ;
+ vm-reg 0 MOV 0 rc-absolute-cell rel-vm ;
: jit-load-context ( -- )
! VM pointer must be in vm-reg already
rs-reg ctx-reg context-retainstack-offset [+] MOV ;
[
- ! ctx-reg is preserved across the call because it is non-volatile
- ! in the C ABI
+ ! ctx-reg is preserved across the call because it is
+ ! non-volatile in the C ABI
jit-load-vm
jit-save-context
! call the primitive
ESP [] vm-reg MOV
- 0 CALL rc-relative rt-dlsym jit-rel
+ 0 CALL f f rc-relative rel-dlsym
jit-restore-context
] jit-primitive jit-define
ESP 4 [+] EAX MOV
"begin_callback" jit-call
- jit-load-vm
- jit-load-context
- jit-restore-context
-
jit-call-quot
jit-load-vm
- jit-save-context
-
ESP [] vm-reg MOV
"end_callback" jit-call
] \ c-to-factor define-sub-primitive
+! The signal-handler and leaf-signal-handler subprimitives are special-cased
+! in vm/quotations.cpp not to trigger generation of a stack frame, so they can
+! peform their own prolog/epilog preserving registers.
+
+:: jit-signal-handler-prolog ( -- frame-size )
+ stack-frame-size 8 bootstrap-cells + :> frame-size
+ ! minus a cell each for flags and return address
+ ! use LEA so we don't dirty flags
+ ESP ESP frame-size 2 bootstrap-cells - neg [+] LEA
+ ESP [] EAX MOV
+ ESP 1 bootstrap-cells [+] ECX MOV
+ ESP 2 bootstrap-cells [+] EDX MOV
+ ESP 3 bootstrap-cells [+] EBX MOV
+ ESP 4 bootstrap-cells [+] EBP MOV
+ ESP 5 bootstrap-cells [+] ESI MOV
+ ESP 6 bootstrap-cells [+] EDI MOV
+ PUSHF
+ ESP frame-size 3 bootstrap-cells - [+] 0 MOV rc-absolute-cell rel-this
+ ESP frame-size 2 bootstrap-cells - [+] frame-size MOV
+ ! subprimitive definition assumes vm's been loaded
+ jit-load-vm
+ frame-size ;
+
+:: jit-signal-handler-epilog ( frame-size -- )
+ POPF
+ EAX ESP [] MOV
+ ECX ESP 1 bootstrap-cells [+] MOV
+ EDX ESP 2 bootstrap-cells [+] MOV
+ EBX ESP 3 bootstrap-cells [+] MOV
+ EBP ESP 4 bootstrap-cells [+] MOV
+ ESI ESP 5 bootstrap-cells [+] MOV
+ EDI ESP 6 bootstrap-cells [+] MOV
+ ESP ESP frame-size 2 bootstrap-cells - [+] LEA ;
+
[
EAX ds-reg [] MOV
ds-reg bootstrap-cell SUB
jit-load-context
jit-restore-context
+ ! clear the fault flag
+ vm-reg vm-fault-flag-offset [+] 0 MOV
+
! Windows-specific setup
ctx-reg jit-update-seh
- ! Clear x87 stack, but preserve rounding mode and exception flags
- ESP 2 SUB
- ESP [] FNSTCW
- FNINIT
- ESP [] FLDCW
- ESP 2 ADD
-
! Load arguments
EAX ESP stack-frame-size [+] MOV
EDX ESP stack-frame-size 4 + [+] MOV
jit-jump-quot
] \ unwind-native-frames define-sub-primitive
+[
+ ESP 2 SUB
+ ESP [] FNSTCW
+ FNINIT
+ AX ESP [] MOV
+ ESP 2 ADD
+] \ fpu-state define-sub-primitive
+
+[
+ ESP stack-frame-size [+] FLDCW
+] \ set-fpu-state define-sub-primitive
+
[
! Load callstack object
temp3 ds-reg [] MOV
\ lazy-jit-compile define-combinator-primitive
[
- temp1 HEX: ffffffff CMP rc-absolute-cell rt-literal jit-rel
+ temp1 0xffffffff CMP f rc-absolute-cell rel-literal
] pic-check-tuple jit-define
! Inline cache miss entry points
jit-save-context
ESP 4 [+] vm-reg MOV
ESP [] pic-tail-reg MOV
- "inline_cache_miss" jit-call
+ 0 CALL rc-relative rel-inline-cache-miss
jit-restore-context ;
[ jit-load-return-address jit-inline-cache-miss ]
! Contexts
: jit-switch-context ( reg -- )
- ! Save ds, rs registers
- jit-load-vm
- jit-save-context
+ ! Reset return value since its bogus right now, to avoid
+ ! confusing the GC
+ ESP -4 [+] 0 MOV
! Make the new context the current one
ctx-reg swap MOV
EDX ds-reg -4 [+] MOV
ds-reg 8 SUB
+ ! Save ds, rs registers
+ jit-load-vm
+ jit-save-context
+
! Make the new context active
EAX jit-switch-context
[ jit-set-context ] \ (set-context) define-sub-primitive
+: jit-save-quot-and-param ( -- )
+ EDX ds-reg MOV
+ ds-reg 8 SUB ;
+
+: jit-push-param ( -- )
+ EAX EDX -4 [+] MOV
+ ds-reg 4 ADD
+ ds-reg [] EAX MOV ;
+
: jit-start-context ( -- )
! Create the new context in return-reg
jit-load-vm
+ jit-save-context
ESP [] vm-reg MOV
"new_context" jit-call
- ! Save pointer to quotation and parameter
- EDX ds-reg MOV
- ds-reg 8 SUB
+ jit-save-quot-and-param
! Make the new context active
+ jit-load-vm
+ jit-save-context
EAX jit-switch-context
- ! Push parameter
- EAX EDX -4 [+] MOV
- ds-reg 4 ADD
- ds-reg [] EAX MOV
+ jit-push-param
! Windows-specific setup
jit-install-seh
jit-set-context
] \ (set-context-and-delete) define-sub-primitive
+: jit-start-context-and-delete ( -- )
+ jit-load-vm
+ jit-load-context
+ ESP [] vm-reg MOV
+ ESP 4 [+] ctx-reg MOV
+ "reset_context" jit-call
+
+ jit-save-quot-and-param
+ ctx-reg jit-switch-context
+ jit-push-param
+
+ EAX EDX [] MOV
+ jit-jump-quot ;
+
[
- jit-delete-current-context
- jit-start-context
+ 0 EAX MOVABS rc-absolute rel-safepoint
+] \ jit-safepoint jit-define
+
+[
+ jit-start-context-and-delete
] \ (start-context-and-delete) define-sub-primitive
projects / factor.git / blobdiff