valgrind and wine

Lionel Ulmer lionel.ulmer at
Sat Nov 30 04:40:32 CST 2002

> ==6476== Valgrind detected that your program requires
> ==6476== the following unimplemented functionality:
> ==6476==    modify_ldt(): I (JRS) haven't investigated this yet; sorry.
> ==6476== This may be because the functionality is hard to implement,
> ==6476== or because no reasonable program would behave this way,
> ==6476== or because nobody has yet needed it.  In any case, let me know
> ==6476== (jseward at and/or try to work around the problem, if you can.

Which version of Valgrind is this ? According to the web page, 1.1.0 should
support this system call : 'Specifically, valgrind can now deal with x86
segment registers, segment override prefixes and the modify_ldt system

But well, for it to really be useful, we would need then also to override in
Valgrind (or in Wine) all the Threading and Heap functions.


		 Lionel Ulmer -

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