Question

Accessing program counter / instruction pointer

Asked by: eleigh

How does one transfer the program counter / instruction pointer to a variable in C++?

I want to be able to:
1) obtain the current execution address
2) pass that address to another function (f)
3) in function (f), check the integrity of the calling function's code and/or modify it

This seems to require at least some assembly code. I presume that I could check the actual addresses in question in a disassembler and hard-code them into my program, but that would be tedious.

Relatedly:
1) How to obtain the start address of a function?
2) How to obtain the address of a label?

In C++ (VC5) I always get the error: 'illegal operation on bound member function expression' when I try to take the address of a function.

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Asked On
1999-10-29 at 15:16:46ID10226768
Tags

address

,

assembly

,

get

Topic

Windows Programming

Participating Experts
2
Points
200
Comments
16

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Answers

 

Expert Comment

by: NickRepinPosted on 1999-10-29 at 18:48:09ID: 2170756

Rank: Wizard

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Expert Comment

by: eleighPosted on 1999-10-30 at 04:01:00ID: 2171162

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Accepted Solution

by: NickRepinPosted on 1999-10-30 at 04:13:16ID: 2171172

Rank: Wizard

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Expert Comment

by: NickRepinPosted on 1999-10-30 at 04:15:06ID: 2171174

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Expert Comment

by: NickRepinPosted on 1999-10-30 at 04:27:36ID: 2171181

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Expert Comment

by: NickRepinPosted on 1999-10-30 at 04:41:45ID: 2171202

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Expert Comment

by: eleighPosted on 1999-10-30 at 11:12:11ID: 2171596

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Expert Comment

by: nietodPosted on 1999-10-31 at 04:11:16ID: 2172407

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Expert Comment

by: NickRepinPosted on 1999-10-31 at 04:16:53ID: 2172410

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by: nietodPosted on 1999-10-31 at 04:24:04ID: 2172418

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Expert Comment

by: NickRepinPosted on 1999-10-31 at 04:46:18ID: 2172444

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by: nietodPosted on 1999-10-31 at 05:09:12ID: 2172465

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Expert Comment

by: NickRepinPosted on 1999-10-31 at 05:20:19ID: 2172477

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by: nietodPosted on 1999-10-31 at 05:45:00ID: 2172501

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by: eleighPosted on 1999-10-31 at 10:11:55ID: 2172756

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by: nietodPosted on 1999-10-31 at 10:23:37ID: 2172767

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