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Jiri Slaby 57cc083ad9 coredump: add support for exe_file in core name 
Now, exe_file is not proc FS dependent, so we can use it to name core
file.  So we add %E pattern for core file name cration which extract path
from mm_struct->exe_file.  Then it converts slashes to exclamation marks
and pastes the result to the core file name itself.

This is useful for environments where binary names are longer than 16
character (the current->comm limitation).  Also where there are binaries
with same name but in a different path.  Further in case the binery itself
changes its current->comm after exec.

So by doing (s/$/#/ -- # is treated as git comment):

  $ sysctl kernel.core_pattern='core.%p.%e.%E'
  $ ln /bin/cat cat45678901234567890
  $ ./cat45678901234567890
  ^Z
  $ rm cat45678901234567890
  $ fg
  ^\Quit (core dumped)
  $ ls core*

we now get:

  core.2434.cat456789012345.!root!cat45678901234567890 (deleted)

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reviewed-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26 17:12:36 -07:00
..
9p Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
adfs Fix common misspellings 2011-03-31 11:26:23 -03:00
affs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
afs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
autofs4 vfs: push dentry_unhash on rmdir into file systems 2011-05-26 07:26:47 -04:00
befs Fix common misspellings 2011-03-31 11:26:23 -03:00
bfs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
btrfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem 2011-05-26 10:50:56 -07:00
cachefiles Fix common misspellings 2011-03-31 11:26:23 -03:00
ceph ceph: remove unnecessary dentry_unhash calls 2011-05-26 07:26:53 -04:00
cifs cifs: remove unnecessary dentry_unhash on rmdir/rename_dir 2011-05-26 07:26:59 -04:00
coda vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
configfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
cramfs cramfs: generate unique inode number for better inode cache usage 2011-01-13 08:03:23 -08:00
debugfs debugfs: move to new strtobool 2011-05-19 16:55:28 +09:30
devpts fs/devpts/inode.c: correctly check d_alloc_name() return code in devpts_pty_new() 2011-03-22 17:44:17 -07:00
dlm Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
ecryptfs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
efs block: remove per-queue plugging 2011-03-10 08:52:07 +01:00
exofs exofs: remove unnecessary dentry_unhash on rmdir/rename_dir 2011-05-26 07:26:57 -04:00
exportfs vfs: Add open by file handle support 2011-03-15 02:21:44 -04:00
ext2 ext2: remove unnecessary dentry_unhash on rmdir/rename_dir 2011-05-26 07:26:56 -04:00
ext3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem 2011-05-26 10:50:56 -07:00
ext4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem 2011-05-26 10:50:56 -07:00
fat Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
freevxfs treewide: fix a few typos in comments 2011-05-10 10:16:21 +02:00
fscache fscache: remove dead code under CONFIG_WORKQUEUE_DEBUGFS 2011-05-25 08:39:44 -07:00
fuse Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
gfs2 Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
hfs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
hfsplus vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
hostfs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
hpfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
hppfs fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
hugetlbfs mm: don't access vm_flags as 'int' 2011-05-26 09:20:31 -07:00
isofs Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block 2011-03-24 10:16:26 -07:00
jbd jbd: Fix comment to match the code in journal_start() 2011-05-24 00:27:53 +02:00
jbd2 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2011-05-26 09:53:20 -07:00
jffs2 vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
jfs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
lockd NLM: Fix "kernel BUG at fs/lockd/host.c:417!" or ".../host.c:283!" 2011-01-25 15:24:47 -05:00
logfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
minix vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
ncpfs memcg: add the pagefault count into memcg stats 2011-05-26 17:12:36 -07:00
nfs nfs: remove unnecessary dentry_unhash on rmdir/rename_dir 2011-05-26 07:26:57 -04:00
nfs_common Fix common misspellings 2011-03-31 11:26:23 -03:00
nfsd treewide: fix a few typos in comments 2011-05-10 10:16:21 +02:00
nilfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
nls
notify Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6 2011-04-07 11:14:49 -07:00
ntfs Fix common misspellings 2011-03-31 11:26:23 -03:00
ocfs2 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 2011-05-26 10:55:15 -07:00
omfs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
openpromfs fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
partitions Merge branch 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block 2011-05-25 09:14:07 -07:00
proc mm: extract exe_file handling from procfs 2011-05-26 17:12:36 -07:00
pstore pstore: fix pstore filesystem mount/remount issue 2011-05-16 11:05:00 -07:00
qnx4 block: remove per-queue plugging 2011-03-10 08:52:07 +01:00
quota vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
ramfs ramfs: fix memleak on no-mmu arch 2011-04-14 16:06:56 -07:00
reiserfs vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
romfs fs: icache RCU free inodes 2011-01-07 17:50:26 +11:00
squashfs treewide: fix a few typos in comments 2011-05-10 10:16:21 +02:00
sysfs sysfs: remove "last sysfs file:" line from the oops messages 2011-05-13 16:05:51 -07:00
sysv vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
ubifs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
udf vfs: push dentry_unhash on rename_dir into file systems 2011-05-26 07:26:48 -04:00
ufs ufs: fix truncated values handling 64 bit metadata 2011-05-26 17:12:33 -07:00
xfs Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs 2011-05-26 10:49:11 -07:00
aio.c Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block 2011-03-24 10:16:26 -07:00
anon_inodes.c sanitize vfsmount refcounting changes 2011-01-16 13:47:07 -05:00
attr.c Fix common misspellings 2011-03-31 11:26:23 -03:00
bad_inode.c fs: provide rcu-walk aware permission i_ops 2011-01-07 17:50:29 +11:00
binfmt_aout.c
binfmt_elf.c brk: COMPAT_BRK: fix detection of randomized brk 2011-04-14 16:06:55 -07:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c CRED: Fix load_flat_shared_library() to initialise bprm correctly 2011-05-03 10:10:51 +10:00
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio-integrity.c block: Require subsystems to explicitly allocate bio_set integrity mempool 2011-03-17 11:11:05 +01:00
bio.c Fix common misspellings 2011-03-31 11:26:23 -03:00
block_dev.c block: move bd_set_size() above rescan_partitions() in __blkdev_get() 2011-05-23 08:50:48 -07:00
buffer.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem 2011-05-26 10:50:56 -07:00
char_dev.c Merge branch 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block 2011-01-13 10:45:01 -08:00
compat.c exec: unify do_execve/compat_do_execve code 2011-04-09 15:53:56 +02:00
compat_binfmt_elf.c
compat_ioctl.c Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 2011-01-07 14:39:20 -08:00
dcache.c vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
dcookies.c
direct-io.c Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block 2011-03-24 10:16:26 -07:00
drop_caches.c vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
eventfd.c Docbook: add fs/eventfd.c and fix typos in it 2011-02-21 15:07:04 -08:00
eventpoll.c Fix common misspellings 2011-03-31 11:26:23 -03:00
exec.c coredump: add support for exe_file in core name 2011-05-26 17:12:36 -07:00
fcntl.c userns: rename is_owner_or_cap to inode_owner_or_capable 2011-03-23 19:47:13 -07:00
fhandle.c fs/fhandle.c: add <linux/personality.h> for ia64 2011-04-14 16:06:56 -07:00
fifo.c Filesystem: fifo: Fixed coding style issue. 2011-03-21 00:16:09 -04:00
file.c vfs: avoid large kmalloc()s for the fdtable 2011-04-28 11:28:20 -07:00
file_table.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-03-16 13:26:17 -07:00
filesystems.c fs: synchronize_rcu when unregister_filesystem success not failure 2011-04-17 10:42:01 -07:00
fs-writeback.c Fix common misspellings 2011-03-31 11:26:23 -03:00
fs_struct.c sanitize vfsmount refcounting changes 2011-01-16 13:47:07 -05:00
generic_acl.c userns: rename is_owner_or_cap to inode_owner_or_capable 2011-03-23 19:47:13 -07:00
inode.c vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
internal.h fs: move i_wb_list out from under inode_lock 2011-03-24 21:17:51 -04:00
ioctl.c vfs: cleanup do_vfs_ioctl() 2011-03-21 00:16:08 -04:00
ioprio.c
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
Kconfig.binfmt
libfs.c libfs: drop unneeded dentry_unhash 2011-05-26 07:26:50 -04:00
locks.c Merge branch 'for-2.6.39' of git://linux-nfs.org/~bfields/linux 2011-03-24 08:20:39 -07:00
Makefile Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 2011-03-16 19:01:29 -07:00
mbcache.c vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
mpage.c mm/fs: add hooks to support cleancache 2011-05-26 10:01:43 -06:00
namei.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2011-05-26 09:52:14 -07:00
namespace.c fs/namespace.c: bound mount propagation fix 2011-05-26 07:26:44 -04:00
nfsctl.c open-style analog of vfs_path_lookup() 2011-03-14 09:15:28 -04:00
no-block.c
open.c fs: Use BUG_ON(!mnt) at dentry_open(). 2011-03-21 01:10:41 -04:00
pipe.c Fix broken "pipe: use event aware wakeups" optimization 2011-01-20 16:21:59 -08:00
pnode.c fs: scale mntget/mntput 2011-01-07 17:50:33 +11:00
pnode.h
posix_acl.c NFS: Prevent memory allocation failure in nfsacl_encode() 2011-01-25 15:24:47 -05:00
read_write.c fix signedness mess in rw_verify_area() on 64bit architectures 2011-01-12 20:06:58 -05:00
read_write.h
readdir.c
select.c select: remove unused MAX_SELECT_SECONDS 2011-03-21 00:16:08 -04:00
seq_file.c
signalfd.c
splice.c splice: add wakeup_pipe_readers() 2011-05-23 19:58:53 +02:00
stack.c
stat.c readlinkat(), fchownat() and fstatat() with empty relative pathnames 2011-03-15 02:21:45 -04:00
statfs.c clean statfs-like syscalls up 2011-03-14 09:15:28 -04:00
super.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem 2011-05-26 10:50:56 -07:00
sync.c Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block 2011-03-24 10:16:26 -07:00
timerfd.c timerfd: Manage cancelable timers in timerfd 2011-05-23 13:59:53 +02:00
utimes.c userns: rename is_owner_or_cap to inode_owner_or_capable 2011-03-23 19:47:13 -07:00
xattr.c vfs: Pass setxattr(2) flags properly 2011-04-21 07:34:44 -07:00
xattr_acl.c