Hello,
After first experimentations with the DynsinstAPI, I would like to use
PatchAPI in order to develop a fine-grained binary editing solution.
Unfortunately, at the moment, I have troubles with the extension of the
Snippet class:
For the beginning, I would like to simply include some raw bytes into an
existing binary to be edited. I have followed the recently posted issue
concerning the same topic
(https://www-auth.cs.wisc.edu/lists/dyninst-api/2014/msg00061.shtml) and
wondered whether you could provide me with some existing binary
modification examples, as well. As can be seen in the code below, my
current test-implementation is based on the above mentioned issue, which
is as well provided by the PatchAPI documentation - in more or less same
detail.
The following code produces errors during compilation at the point when
the snippet-pointer is created.
Error message: "static Dyninst::PatchAPI::Snippet::Ptr
Dyninst::PatchAPI::Snippet::create(Dyninst::PatchAPI::Snippet*)' is
inaccessible within this context"
---
class MySnippet : Snippet {
public:
virtual bool generate(Point *point, Buffer &buf) {
buf.copy((void*)"BBBBBBBBBBBBBBBBBBBB", 20);
return true;
}
};
...
/* The folowing line leads to errors during compilation */
MySnippet::Ptr snippet = MySnippet::create(new MySnippet());
Point *point = mgr->findPoint(Location::Instruction(b, b->last()),
Point::BlockExit);
Patcher patcher(mgr);
patcher.add(PushBackCommand::create(point, snippet));
patcher.commit();
---
I would really appreciate it if you could help me with my concern.
Thank you very much in advance.
Best regards,
Sergej
PS: I am using the DynsinstAPI bundle version 8.1.2 (including ParseAPI,
PatchAPI, ...).
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