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{
Copyright (c) 2016 by Karoly Balogh
Contains information on syscalls
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************
}
unit syscinfo;
{$i fpcdefs.inc}
interface
uses
systems, tokens, symconst;
type
tsyscallinfo = record
token: ttoken;
procoption: tprocoption;
validon: set of tsystem;
end;
psyscallinfo = ^tsyscallinfo;
const
syscall_conventions: array[1..10] of tsyscallinfo = (
( token: NOTOKEN; procoption: po_syscall; validon: [system_m68k_atari,system_m68k_palmos,system_arm_palmos] ),
( token: _LEGACY; procoption: po_syscall_legacy; validon: [system_powerpc_morphos,system_m68k_amiga] ),
// old sysv naming, for compatibility only (on MorphOS/OS4)
( token: _SYSV; procoption: po_syscall_basenone; validon: [system_powerpc_morphos] ),
( token: _SYSVBASE; procoption: po_syscall_baselast; validon: [system_powerpc_morphos] ),
( token: _BASESYSV; procoption: po_syscall_basefirst; validon: [system_powerpc_morphos,system_powerpc_amiga] ),
( token: _R12BASE; procoption: po_syscall_basereg; validon: [system_powerpc_morphos] ),
// new base naming, which should cover all "next-gen" Amiga-like systems
( token: _BASENONE; procoption: po_syscall_basenone; validon: [system_powerpc_morphos] ),
( token: _BASEFIRST; procoption: po_syscall_basefirst; validon: [system_powerpc_morphos,system_powerpc_amiga] ),
( token: _BASELAST; procoption: po_syscall_baselast; validon: [system_powerpc_morphos,system_i386_aros,system_x86_64_aros,system_arm_aros] ),
( token: _BASEREG; procoption: po_syscall_basereg; validon: [system_powerpc_morphos,system_i386_aros,system_x86_64_aros] ));
function get_syscall_by_token(const token: ttoken): psyscallinfo;
function get_syscall_by_name(const name: string): psyscallinfo;
function get_default_syscall: tprocoption;
procedure set_default_syscall(sc: tprocoption);
implementation
uses
verbose;
const
syscall_conventions_po = [ po_syscall, po_syscall_legacy, po_syscall_basenone,
po_syscall_baselast, po_syscall_basefirst, po_syscall_basereg ];
type
tsyscalldefaultinfo = record
system: tsystem;
procoption: tprocoption;
end;
const
default_syscall_conventions: array[0..8] of tsyscalldefaultinfo = (
( system: system_arm_palmos; procoption: po_syscall ),
( system: system_m68k_palmos; procoption: po_syscall ),
( system: system_m68k_atari; procoption: po_syscall ),
( system: system_m68k_amiga; procoption: po_syscall_legacy ),
( system: system_powerpc_amiga; procoption: po_syscall_basefirst ),
( system: system_powerpc_morphos; procoption: po_syscall_legacy ),
( system: system_arm_aros; procoption: po_syscall_baselast ),
( system: system_i386_aros; procoption: po_syscall_baselast ),
( system: system_x86_64_aros; procoption: po_syscall_baselast ));
var
default_syscall_convention: tprocoption = po_none;
function get_syscall_by_token(const token: ttoken): psyscallinfo;
var
i: longint;
begin
result:=nil;
for i:=low(syscall_conventions) to high(syscall_conventions) do
if syscall_conventions[i].token = token then
begin
result:=@syscall_conventions[i];
break;
end;
end;
function get_syscall_by_name(const name: string): psyscallinfo;
var
i: longint;
begin
result:=nil;
for i:=low(syscall_conventions) to high(syscall_conventions) do
if arraytokeninfo[syscall_conventions[i].token].str = name then
begin
result:=@syscall_conventions[i];
break;
end;
end;
function get_default_syscall: tprocoption;
var
i: longint;
begin
if not (default_syscall_convention in syscall_conventions_po) then
begin
for i:=low(default_syscall_conventions) to high(default_syscall_conventions) do
if default_syscall_conventions[i].system = target_info.system then
default_syscall_convention:=default_syscall_conventions[i].procoption;
if not (default_syscall_convention in syscall_conventions_po) then
internalerror(2016090302);
end;
result:=default_syscall_convention;
end;
procedure set_default_syscall(sc: tprocoption);
begin
if not (sc in syscall_conventions_po) then
internalerror(2016090301);
default_syscall_convention:=sc;
end;
end.
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