system cpu.x86.assembler cpu.x86.assembler.operands layouts
vocabs parser compiler.constants compiler.codegen.relocation
sequences math math.private generic.single.private
-threads.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 f rc-relative rel-dlsym ;
[
- ! save stack frame size
- stack-frame-size PUSH
- ! push entry point
- 0 PUSH rc-absolute-cell rel-this
! 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
[
"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
\ lazy-jit-compile define-combinator-primitive
[
- temp1 HEX: ffffffff CMP f rc-absolute-cell rel-literal
+ temp1 0xffffffff CMP f rc-absolute-cell rel-literal
] pic-check-tuple jit-define
! Inline cache miss entry points
EAX EDX [] MOV
jit-jump-quot ;
-: jit-safepoint ( -- )
- 0 [] EAX MOV rc-absolute rel-safepoint ;
+[
+ 0 EAX MOVABS rc-absolute rel-safepoint
+] \ jit-safepoint jit-define
[
jit-start-context-and-delete