lkml.org 
[lkml]   [2011]   [Dec]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/1] x86: Add process memory layout to coredump file
On Sat, Dec 10, 2011 at 10:37:02PM +0800, t cheney wrote:
> This patch just add memory layout(same as /proc/pid/maps) to
> coredump file. The layout is appended to corenote segment with
> flag NT_MAPS=7.

> + len = sprintf(buf, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu",
> + start,
> + end,
> + flags & VM_READ ? 'r' : '-',
> + flags & VM_WRITE ? 'w' : '-',
> + flags & VM_EXEC ? 'x' : '-',
> + flags & VM_MAYSHARE ? 's' : 'p',
> + pgoff,
> + MAJOR(dev), MINOR(dev), ino);

Device numbers may be wider than 16 bits.

> + p = d_path(&vma->vm_file->f_path, s, maps_size-1);

What if somebody renames the file (or, better yet, its parent directory)
between two calls of that thing?


\
 
 \ /
  Last update: 2011-12-14 22:19    [W:3.947 / U:0.036 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site