Estensioni di protezione della memoria Intel®

Pointer Checker in ICC: requires dynamic linking of runtime libraries

The -check-pointers switch, which enables the Pointer Checker feature, cannot be used with the -static flag on Linux* (/MT on Windows*) which forces all Intel libraries to be linked statically. The reason is that, by design, the Pointer Checker library “libchkp.so” must be shared by all executables and libraries in a process without duplication. While it is certainly possible to ensure, manually, that only a single library copy is linked, we found in testing that it was quite easy for users to accidentally include multiple copies of the library, causing unpredictable runtime errors.

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  • Using Intel® SDE's chip-check feature

    Intel® SDE includes a software validation mechanism to restrict executed instructions to a particular microprocessor. This is intended to be a helpful diagnostic tool for use when deploying new software. Use chip check when you want to make sure that your program is not using instruction features that are not present on a specific microarchitecture implementation.

    In the output of "sde -long-help" there is a section describing the controls for this feature:

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  • Intel® Memory Protection Extensions (Intel® MPX) Runtime Support

    Enabling an application to use Intel MPX will generally not require source code updates but there is some runtime code needed in order to make use of Intel MPX.  For most applications this runtime support will be available by linking to a library supplied by the compiler or possibly it will come directly from the OS once OS versions that support Intel MPX are available.  The runtime code has 3 responsibilities: 

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