Messages in this thread | | | Date | Thu, 21 Mar 2013 10:57:43 -0400 | From | Vivek Goyal <> | Subject | Re: [PATCH v3 18/21] vmcore: check if vmcore objects satify mmap()'s page-size boundary requirement |
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On Wed, Mar 20, 2013 at 11:29:05PM -0700, Eric W. Biederman wrote:
[..] > Preserving the actual PT_LOAD segments p_paddr and p_memsz values is > important. p_offset we can change as much as we want. Which means there > can be logical holes in the file between PT_LOAD segments, where we put > the extra data needed to keep everything page aligned.
Agreed. If one modifies p_paddr then one will have to modify p->vaddr too. And user space tools look at p->vaddr and where is the corresponding physical address. Keeping p_vaddr and p_paddr intact makes sense.
Thanks Vivek
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