2cdeb29fa06f5e56c6325fcc9b607173b5e51a43
2 * Copyright (c) 2006 The Regents of The University of Michigan
5 * Redistribution and use in source and binary forms, with or without
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14 * this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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33 #include <sys/ptrace.h>
36 #include "tracechild_i386.hh"
41 I386TraceChild::getRegs(user_regs_struct
& myregs
, int num
)
43 assert(num
< numregs
&& num
>= 0);
46 case EAX
: return myregs
.eax
;
47 case EBX
: return myregs
.ebx
;
48 case ECX
: return myregs
.ecx
;
49 case EDX
: return myregs
.edx
;
51 case ESI
: return myregs
.esi
;
52 case EDI
: return myregs
.edi
;
53 //Base pointer and stack pointer
54 case EBP
: return myregs
.ebp
;
55 case ESP
: return myregs
.esp
;
56 //Segmentation registers
57 case CS
: return myregs
.cs
;
58 case DS
: return myregs
.ds
;
59 case ES
: return myregs
.es
;
60 case FS
: return myregs
.fs
;
61 case GS
: return myregs
.gs
;
62 case SS
: return myregs
.ss
;
64 case EIP
: return myregs
.eip
;
72 I386TraceChild::update(int pid
)
75 if (ptrace(PTRACE_GETREGS
, pid
, 0, ®s
) != 0)
77 for (unsigned int x
= 0; x
< numregs
; x
++) {
78 regDiffSinceUpdate
[x
] = (getRegVal(x
) != getOldRegVal(x
));
82 I386TraceChild::I386TraceChild()
84 for (unsigned int x
= 0; x
< numregs
; x
++)
85 regDiffSinceUpdate
[x
] = false;
89 I386TraceChild::getRegVal(int num
)
91 return getRegs(regs
, num
);
95 I386TraceChild::getOldRegVal(int num
)
97 return getRegs(oldregs
, num
);
103 return new I386TraceChild
;