| From | (Eric W. Biederman) | Date | Tue, 19 Mar 2013 14:11:51 -0700 | Subject | Re: [PATCH v3 17/21] vmcore: check NT_VMCORE_PAD as a mark indicating the end of ELF note buffer |
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HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com> writes:
> Modern kernel marks the end of ELF note buffer with NT_VMCORE_PAD type > note in order to make the buffer satisfy mmap()'s page-size boundary > requirement. This patch makes finishing reading each buffer if the > note type now being read is NT_VMCORE_PAD type.
Ick. Even with a pad header you can mark the end with an empty header, and my memory may be deceiving me but I believe an empty header is specified by the ELF ABI docs.
Beyond which I don't quite see the point of any of this as all of these headers need to be combined into a single note section before being presented to user space.
Eric
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