fpPS4/ps4_elf_tls.pas
2022-05-31 10:20:10 +03:00

85 lines
1.3 KiB
ObjectPascal

unit ps4_elf_tls;
{$mode objfpc}{$H+}
interface
uses
Classes,
SysUtils,
Hamt;
type
Pdtv=^Tdtv;
Tdtv=packed record
value:Pointer;
is_static:QWORD;
gen:QWORD;
end;
Ptls_tcb=^Ttls_tcb;
Ttls_tcb=packed record
seg_adr:Pointer;
dtv:Pdtv;
_dtv:Tdtv;
end;
function _init_tls_tcb(Size,is_static,gen:QWORD):Ptls_tcb;
function _get_tls_tcb(gen:QWORD):Ptls_tcb;
procedure _free_tls_tcb_all;
implementation
threadvar
tls_local:THAMT;
function _init_tls_tcb(Size,is_static,gen:QWORD):Ptls_tcb;
var
full_size:QWORD;
base:Pointer;
tcb:Ptls_tcb;
PP:PPointer;
begin
full_size:=Size+SizeOf(Ttls_tcb);
base:=AllocMem(full_size);
tcb:=Pointer(base+Size);
tcb^.seg_adr:=tcb;
tcb^.dtv:=@tcb^._dtv;
tcb^._dtv.value:=base;
tcb^._dtv.is_static:=is_static;
tcb^._dtv.gen:=gen;
if (tls_local=nil) then tls_local:=HAMT_create64;
PP:=HAMT_insert64(tls_local,gen,tcb);
Assert(PP<>nil);
Assert(PP^=tcb);
Result:=tcb;
end;
function _get_tls_tcb(gen:QWORD):Ptls_tcb;
var
PP:PPointer;
begin
Result:=nil;
PP:=HAMT_search64(tls_local,gen);
if (PP<>nil) then Result:=PP^;
end;
procedure _free_tls_tcb(data,userdata:Pointer);
Var
tcb:Ptls_tcb;
base:Pointer;
begin
tcb:=data;
if (tcb=nil) then Exit;
base:=tcb^._dtv.value;
FreeMem(base);
end;
procedure _free_tls_tcb_all;
begin
HAMT_destroy64(tls_local,@_free_tls_tcb,nil);
tls_local:=nil;
end;
end.