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Working on x86-64 FFI

release
Slava Pestov 2007-10-09 18:06:44 -04:00
parent c64c2e8df8
commit c41f21412e
2 changed files with 53 additions and 16 deletions
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41
core/alien/compiler/compiler.factor
View File

@ -27,11 +27,11 @@ GENERIC: alien-node-abi ( node -- str )
: alien-node-return* ( node -- ctype ) : alien-node-return* ( node -- ctype )
alien-node-return dup large-struct? [ drop "void" ] when ; alien-node-return dup large-struct? [ drop "void" ] when ;
: c-type-stack-align ( type -- align )
dup c-type-stack-align? [ c-type-align ] [ drop cell ] if ;
: parameter-align ( n type -- n delta ) : parameter-align ( n type -- n delta )
over >r over >r c-type-stack-align align dup r> - ;
dup c-type-stack-align? [ c-type-align ] [ drop cell ] if
align
dup r> - ;
: parameter-sizes ( types -- total offsets ) : parameter-sizes ( types -- total offsets )
#! Compute stack frame locations. #! Compute stack frame locations.
@ -91,24 +91,33 @@ M: float-regs inc-reg-class
[ dup class get swap inc-reg-class ] keep ; [ dup class get swap inc-reg-class ] keep ;
: alloc-parameter ( parameter -- reg reg-class ) : alloc-parameter ( parameter -- reg reg-class )
c-type c-type-reg-class dup reg-class-full? c-type-reg-class dup reg-class-full?
[ spill-param ] [ fastcall-param ] if [ spill-param ] [ fastcall-param ] if
[ param-reg ] keep ; [ param-reg ] keep ;
: (flatten-int-type) ( size -- ) : (flatten-int-type) ( size -- )
cell /i "void*" <repetition> % ; cell /i "void*" c-type <repetition> % ;
: flatten-int-type ( n type -- n ) GENERIC: flatten-value-type ( type -- )
[ parameter-align (flatten-int-type) ] keep
stack-size cell align dup (flatten-int-type) + ;
: flatten-value-type ( n type -- n ) M: object flatten-value-type , ;
dup c-type c-type-reg-class T{ int-regs } =
[ flatten-int-type ] [ , ] if ; M: struct-type flatten-value-type ( type -- )
stack-size cell align (flatten-int-type) ;
M: long-long-type flatten-value-type ( type -- )
stack-size cell align (flatten-int-type) ;
: flatten-value-types ( params -- params ) : flatten-value-types ( params -- params )
#! Convert value type structs to consecutive void*s. #! Convert value type structs to consecutive void*s.
[ 0 [ flatten-value-type ] reduce drop ] { } make ; [
0 [
c-type
[ parameter-align (flatten-int-type) ] keep
[ stack-size cell align + ] keep
flatten-value-type
] reduce drop
] { } make ;
: each-parameter ( parameters quot -- ) : each-parameter ( parameters quot -- )
>r [ parameter-sizes nip ] keep r> 2each ; inline >r [ parameter-sizes nip ] keep r> 2each ; inline
@ -127,11 +136,11 @@ M: float-regs inc-reg-class
#! Moves values from C stack to registers (if word is #! Moves values from C stack to registers (if word is
#! %load-param-reg) and registers to C stack (if word is #! %load-param-reg) and registers to C stack (if word is
#! %save-param-reg). #! %save-param-reg).
swap >r
alien-node-parameters* alien-node-parameters*
flatten-value-types flatten-value-types
[ pick >r alloc-parameter r> execute ] each-parameter r> [ >r alloc-parameter r> execute ] curry each-parameter ;
drop ; inline inline
: if-void ( type true false -- ) : if-void ( type true false -- )
pick "void" = [ drop nip call ] [ nip call ] if ; inline pick "void" = [ drop nip call ] [ nip call ] if ; inline

28
core/cpu/x86/64/64.factor
View File

@ -175,3 +175,31 @@ USE: cpu.x86.intrinsics
\ set-alien-signed-4 small-reg-32 define-setter \ set-alien-signed-4 small-reg-32 define-setter
T{ x86-backend f 8 } compiler-backend set-global T{ x86-backend f 8 } compiler-backend set-global
! The ABI for passing structs by value is pretty messed up
"void*" c-type clone "__stack_value" define-primitive-type
T{ stack-regs } "__stack_value" c-type set-c-type-reg-class
: struct-types&offset ( ctype -- pairs )
c-type struct-type-fields [
dup slot-spec-type swap slot-spec-offset 2array
] map ;
: split-struct ( pairs -- seq )
[
[ first2 8 mod zero? [ t , ] when , ] each
] { } make { t } split [ empty? not ] subset ;
: flatten-large-struct ( type -- )
heap-size cell align
cell /i "__stack_value" <repetition> % ;
M: struct-type flatten-value-type ( type -- seq )
dup c-size 16 > [
flatten-large-struct
] [
struct-types&offset split-struct [
[ c-type c-type-reg-class ] map
T{ int-regs } swap member? "void*" "double" ? ,
] each
] if ;