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94 lines
2.5 KiB
ObjectPascal
94 lines
2.5 KiB
ObjectPascal
unit FpDbgLinuxExtra;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes,
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BaseUnix,
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SysUtils;
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const
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PTRACE_TRACEME = 0;
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PTRACE_PEEKTEXT = 1;
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PTRACE_PEEKDATA = 2;
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PTRACE_PEEKUSR = 3;
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PTRACE_POKETEXT = 4;
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PTRACE_POKEDATA = 5;
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PTRACE_POKEUSR = 6;
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PTRACE_CONT = 7;
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PTRACE_KILL = 8;
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PTRACE_SINGLESTEP = 9;
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{$ifdef linux}
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PTRACE_GETREGS = 12;
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PTRACE_SETREGS = 13;
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PTRACE_GETFPREGS = 14;
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PTRACE_SETFPREGS = 15;
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PTRACE_GETREGSET = $4204;
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PTRACE_SETREGSET = $4205;
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{$endif linux}
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PTRACE_ATTACH = 16;
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RIP = 16;
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function fpPTrace(ptrace_request: cint; pid: TPid; addr: Pointer; data: pointer): PtrInt;
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implementation
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type
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// all platforms, cint=32-bit.
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// On platforms with off_t =64-bit, people should
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// use int64, and typecast all calls that don't
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// return off_t to cint.
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{$ifdef cpux86_64}
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TSysResult = int64;
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TSysParam = int64;
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{$else}
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TSysResult = cint32;
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TSysParam = cint32;
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{$endif cpux86_64}
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{$ifdef darwin}
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Function ptrace(ptrace_request: cInt; pid: TPid; addr:pointer; data:pointer): cint; cdecl; external clib name 'ptrace';
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{$endif darwin}
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{$ifdef linux}
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function Do_SysCall(sysnr,param1,param2,param3,param4:TSysParam):TSysResult; {$ifdef cpui386}register;{$endif} external name 'FPC_SYSCALL4';
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const
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{$ifdef cpux86_64}
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syscall_nr_ptrace = 101;
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{$else}
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syscall_nr_ptrace = 26;
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{$endif}
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{$endif linux}
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function fpPTrace(ptrace_request: cint; pid: TPid; addr: Pointer; data: pointer): PtrInt;
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{$ifdef linux}
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var
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res : TSysResult;
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ret : PtrInt;
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{$endif linux}
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begin
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{$ifdef darwin}
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result := ptrace(ptrace_request, pid, addr, data);
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{$endif}
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{$ifdef linux}
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if (ptrace_request > 0) and (ptrace_request < 4) then
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data := @ret;
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res := do_syscall(TSysParam(syscall_nr_ptrace), TSysParam(ptrace_request), TSysParam(pid), TSysParam(addr), TSysParam(data));
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if (res >= 0) and (ptrace_request > 0) and (ptrace_request < 4) then
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begin
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errno:=0;
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result := ret;
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end
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else
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result := res;
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{$endif linux}
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end;
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end.
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