Hi Jason,
Even if I find out the page's offset how do I find the address of arena_run_t,
since I just know the mapping information for every page which is present in
arena_chunk_t.
Regards,
Shireesh
On Thursday, 17 July 2014 1:33 PM, Jason Evans <jas...@canonware.com> wrote:
On Jul 17, 2014, at 8:54 AM, shireesh bhat <shireeshb...@yahoo.co.in> wrote:
I want to extract the starting address of the arena_run_t from the mapping
information present in arena_chunk_t for each page.
>Suppose I know the starting address of one of the chunks and have retrieved
>the mapping information for a particular page from the 'map' structure inside
>arena_chunk_t, is it possible for me to retrieve the address of arena_run_t to
>which the page belongs?
As currently implemented, the arena_run_t data structure is embedded at offset
0 within the run itself, so as long as you know the page's offset from the
beginning of the run (which is recorded in the chunk's page map), you can
directly compute the (arena_run_t *).
Jason
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