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unit FpDbgLinuxExtra;
{$mode objfpc}{$H+}
interface
uses
Classes,
BaseUnix,
{$ifdef linux}{$ifNdef FPDEBUG_USE_LIBC}
SysCall,
{$endif}{$endif}
SysUtils;
{$ifdef darwin}
{$DEFINE FPDEBUG_USE_LIBC}
{$else}
{$IF not declared(Do_SysCall)}
{$IFDEF SUNOS} {$DEFINE FPDEBUG_USE_LIBC} {$ENDIF}
{$ENDIF}
{$endif}
const
PTRACE_TRACEME = 0;
PTRACE_PEEKTEXT = 1;
PTRACE_PEEKDATA = 2;
PTRACE_PEEKUSR = 3;
PTRACE_POKETEXT = 4;
PTRACE_POKEDATA = 5;
PTRACE_POKEUSR = 6;
PTRACE_CONT = 7;
PTRACE_KILL = 8;
PTRACE_SINGLESTEP = 9;
{$ifdef linux}
PTRACE_GETREGS = 12;
PTRACE_SETREGS = 13;
PTRACE_GETFPREGS = 14;
PTRACE_SETFPREGS = 15;
PTRACE_SETOPTIONS = $4200;
PTRACE_GETEVENTMSG = $4201;
PTRACE_GETREGSET = $4204;
PTRACE_SETREGSET = $4205;
PTRACE_EVENT_FORK = 1;
PTRACE_EVENT_VFORK = 2;
PTRACE_EVENT_CLONE = 3;
PTRACE_EVENT_EXEC = 4;
PTRACE_EVENT_VFORK_DONE = 5;
PTRACE_EVENT_EXIT = 6;
PTRACE_EVENT_SECCOMP = 7;
PTRACE_EVENT_STOP = 128;
PTRACE_O_TRACEFORK = 1 << PTRACE_EVENT_FORK;
PTRACE_O_TRACEVFORK = 1 << PTRACE_EVENT_VFORK;
PTRACE_O_TRACECLONE = 1 << PTRACE_EVENT_CLONE;
{$endif linux}
PTRACE_ATTACH = 16;
PTRACE_DETACH = 17;
PTRACE_SEIZE = $4206;
RIP = 16;
function fpPTrace(ptrace_request: cint; pid: TPid; addr: Pointer; data: pointer): PtrInt;
implementation
{$ifdef FPDEBUG_USE_LIBC}
(* ** ptrace ** *)
Function ptrace(ptrace_request: cInt; pid: TPid; addr:pointer; data:pointer): cint; cdecl; external clib name 'ptrace';
function fpPTrace(ptrace_request: cint; pid: TPid; addr: Pointer; data: pointer): PtrInt; inline;
begin
result := ptrace(ptrace_request, pid, addr, data);
end;
{$else} // FPDEBUG_USE_LIBC
{$IF not declared(Do_SysCall)}
(* ** ptrace not available ** *)
function fpPTrace(ptrace_request: cint; pid: TPid; addr: Pointer; data: pointer): PtrInt; inline;
begin
raise Exception.Create('not supported');
end;
{$else} // not declared(Do_SysCall)
(* ** Use Do_SysCall ** *)
const
{$ifdef cpux86_64}
syscall_nr_ptrace = 101;
{$else}
syscall_nr_ptrace = 26;
{$endif}
function fpPTrace(ptrace_request: cint; pid: TPid; addr: Pointer; data: pointer): PtrInt;
var
res : TSysResult;
ret : PtrInt;
begin
if (ptrace_request > 0) and (ptrace_request < 4) then
data := @ret;
res := do_syscall(TSysParam(syscall_nr_ptrace), TSysParam(ptrace_request), TSysParam(pid), TSysParam(addr), TSysParam(data));
if (res >= 0) and (ptrace_request > 0) and (ptrace_request < 4) then
begin
errno:=0;
result := ret;
end
else
result := res;
end;
{$endif} // declared(Do_SysCall)
{$endif FPDEBUG_USE_LIBC}
end.
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