-! 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
: div-arg ( -- reg ) EAX ;
: mod-arg ( -- reg ) EDX ;
: temp0 ( -- reg ) EAX ;
-: temp1 ( -- reg ) EDX ;
-: temp2 ( -- reg ) ECX ;
-: temp3 ( -- reg ) EBX ;
+: temp1 ( -- reg ) ECX ;
+: temp2 ( -- reg ) EBX ;
+: temp3 ( -- reg ) EDX ;
+: pic-tail-reg ( -- reg ) EDX ;
: stack-reg ( -- reg ) ESP ;
: frame-reg ( -- reg ) EBP ;
-: vm-reg ( -- reg ) ECX ;
+: vm-reg ( -- reg ) EBX ;
: ctx-reg ( -- reg ) EBP ;
: nv-regs ( -- seq ) { ESI EDI EBX } ;
-: nv-reg ( -- reg ) 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
[
- temp3 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
: jit-save-context ( -- )
jit-load-context
- EDX ESP -4 [+] LEA
- ctx-reg context-callstack-top-offset [+] EDX MOV
+ ECX ESP -4 [+] LEA
+ ctx-reg context-callstack-top-offset [+] ECX MOV
ctx-reg context-datastack-offset [+] ds-reg MOV
ctx-reg context-retainstack-offset [+] rs-reg MOV ;
rs-reg ctx-reg context-retainstack-offset [+] MOV ;
[
+ ! 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
- ! restore ds, rs registers
+ 0 CALL f f rc-relative rel-dlsym
jit-restore-context
] jit-primitive jit-define
[
jit-load-vm
ESP [] vm-reg MOV
- "begin_callback" jit-call
-
- ! load quotation - EBP is ctx-reg so it will get clobbered
- ! later on
EAX EBP 8 [+] MOV
-
- jit-load-vm
- jit-load-context
- jit-restore-context
+ ESP 4 [+] EAX MOV
+ "begin_callback" jit-call
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
\ (call) define-combinator-primitive
[
- ! Clear x87 stack, but preserve rounding mode and exception flags
- ESP 2 SUB
- ESP [] FNSTCW
- FNINIT
- ESP [] FLDCW
- ESP 2 ADD
+ ! Load ds and rs registers
+ jit-load-vm
+ 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
! Load arguments
EAX ESP stack-frame-size [+] MOV
! Unwind stack frames
ESP EDX MOV
- ! Load ds and rs registers
- jit-load-vm
- jit-load-context
- jit-restore-context
-
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
- EBX ds-reg [] MOV
+ temp3 ds-reg [] MOV
ds-reg bootstrap-cell SUB
! Get ctx->callstack_bottom
jit-load-vm
jit-load-context
- EAX ctx-reg context-callstack-bottom-offset [+] MOV
+ temp0 ctx-reg context-callstack-bottom-offset [+] MOV
! Get top of callstack object -- 'src' for memcpy
- EBP EBX callstack-top-offset [+] LEA
+ temp1 temp3 callstack-top-offset [+] LEA
! Get callstack length, in bytes --- 'len' for memcpy
- EDX EBX callstack-length-offset [+] MOV
- EDX tag-bits get SHR
+ temp2 temp3 callstack-length-offset [+] MOV
+ temp2 tag-bits get SHR
! Compute new stack pointer -- 'dst' for memcpy
- EAX EDX SUB
+ temp0 temp2 SUB
! Install new stack pointer
- ESP EAX MOV
+ ESP temp0 MOV
! Call memcpy
- EDX PUSH
- EBP PUSH
- EAX PUSH
+ temp2 PUSH
+ temp1 PUSH
+ temp0 PUSH
"factor_memcpy" jit-call
ESP 12 ADD
! Return with new callstack
[ jit-jump-quot ]
\ lazy-jit-compile define-combinator-primitive
+[
+ temp1 0xffffffff CMP f rc-absolute-cell rel-literal
+] pic-check-tuple jit-define
+
! Inline cache miss entry points
: jit-load-return-address ( -- )
- EBX ESP stack-frame-size bootstrap-cell - [+] MOV ;
+ pic-tail-reg ESP stack-frame-size bootstrap-cell - [+] MOV ;
! These are always in tail position with an existing stack
! frame, and the stack. The frame setup takes this into account.
jit-load-vm
jit-save-context
ESP 4 [+] vm-reg MOV
- ESP [] EBX MOV
- "inline_cache_miss" jit-call
+ ESP [] pic-tail-reg MOV
+ 0 CALL rc-relative rel-inline-cache-miss
jit-restore-context ;
[ jit-load-return-address jit-inline-cache-miss ]
[
ESP [] EAX MOV
ESP 4 [+] EDX MOV
+ jit-load-vm
ESP 8 [+] vm-reg MOV
jit-call
]
EBX tag-bits get SAR
ESP [] EBX MOV
ESP 4 [+] EBP MOV
+ jit-load-vm
ESP 8 [+] vm-reg MOV
"overflow_fixnum_multiply" jit-call
]
! 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
! Load new stack pointer
ESP ctx-reg context-callstack-top-offset [+] MOV
+ ! Windows-specific setup
+ ctx-reg jit-update-tib
+
! Load new ds, rs registers
jit-restore-context ;
! Load context and parameter from datastack
EAX ds-reg [] MOV
EAX EAX alien-offset [+] MOV
- EBX ds-reg -4 [+] 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
+ ! Windows-specific setup
+ ctx-reg jit-update-seh
+
! Twiddle stack for return
ESP 4 ADD
! Store parameter to datastack
ds-reg 4 ADD
- ds-reg [] EBX MOV ;
+ ds-reg [] EDX MOV ;
[ 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
- EBX 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 EBX -4 [+] MOV
- ds-reg 4 ADD
- ds-reg [] EAX MOV
+ jit-push-param
+
+ ! Windows-specific setup
+ jit-install-seh
+
+ ! Push a fake return address
+ 0 PUSH
! Jump to initial quotation
- EAX EBX [] MOV
+ EAX EDX [] MOV
jit-jump-quot ;
[ jit-start-context ] \ (start-context) define-sub-primitive
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
-] \ (start-context-and-delete) define-sub-primitive
+ 0 EAX MOVABS rc-absolute rel-safepoint
+] \ jit-safepoint jit-define
-<< "vocab:cpu/x86/bootstrap.factor" parse-file suffix! >>
-call
+[
+ jit-start-context-and-delete
+] \ (start-context-and-delete) define-sub-primitive
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