Hi Mahesh,
Sorry about many responses of this patch.
On Wed, 18 May 2011 01:36:17 +0530
Mahesh J Salgaonkar <mahesh at linux.vnet.ibm.com> wrote:
>
> From: Mahesh Salgaonkar <mahesh at linux.vnet.ibm.com>
>
> Include the erase information in the makedumpfile generated dumpfile. The
> erased information contains only effective lines from the filter
> configuration file. This patch supports inclusion of erase information in
> kdump compressed, flatten and split dumpfiles. On re-filtering, the erase
> information from input dumpfile (if any) will be carried over to resulting
> dumpfile.
>
> This patch introduces new members offset_eraseinfo, size_eraseinfo into the
> sub header in compressed kdump file.
>
> The erased information would contain *multiple* erased symbol names.
> For example, the following is based on your above example.
>
> struct S1 {
> int a;
> int b;
> int c;
> };
> struct S2 {
> struct S1 *mystruct1;
> struct S1 *mystruct2;
> };
>
> struct S2 mystruct2;
>
> #Filter command
> erase mystruct2.mystruct1.a
> erase mystruct2.mystruct1.c
> erase mystruct2.mystruct2.b
>
> #The erased information
> erase mystruct2.mystruct1.a 4
> erase mystruct2.mystruct1.c 4
> erase mystruct2.mystruct2.b 4
While testing this feature, I noticed the description format of
makedumpfile.conf is different from the one of eraseinfo.
The former contains "size", but the later does not.
I feel the same format will be useful.
Are there any reasons of different formats ?
Thanks
Ken'ichi Ohmichi
