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    SubjectRe: [PATCH v10 17/17] kasan: enable instrumentation of global variables
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    2015-01-31 0:45 GMT+03:00 Andrew Morton <akpm@linux-foundation.org>:
    > On Fri, 30 Jan 2015 20:47:13 +0300 Andrey Ryabinin <a.ryabinin@samsung.com> wrote:
    >
    >> >> +struct kasan_global {
    >> >> + const void *beg; /* Address of the beginning of the global variable. */
    >> >> + size_t size; /* Size of the global variable. */
    >> >> + size_t size_with_redzone; /* Size of the variable + size of the red zone. 32 bytes aligned */
    >> >> + const void *name;
    >> >> + const void *module_name; /* Name of the module where the global variable is declared. */
    >> >> + unsigned long has_dynamic_init; /* This needed for C++ */
    >> >
    >> > This can be removed?
    >> >
    >>
    >> No, compiler dictates layout of this struct. That probably deserves a comment.
    >
    > I see. A link to the relevant gcc doc would be good.
    >

    There is no doc, only gcc source code.

    > Perhaps the compiler provides a header file so clients of this feature
    > don't need to write their own?
    >

    Nope.
    Actually, we are the only client of this feature outside gcc code.


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