WSL2-Linux-Kernel/arch
Daisuke HATAYAMA 8d9032bbe4 elf coredump: add extended numbering support
The current ELF dumper implementation can produce broken corefiles if
program headers exceed 65535.  This number is determined by the number of
vmas which the process have.  In particular, some extreme programs may use
more than 65535 vmas.  (If you google max_map_count, you can find some
users facing this problem.) This kind of program never be able to generate
correct coredumps.

This patch implements ``extended numbering'' that uses sh_info field of
the first section header instead of e_phnum field in order to represent
upto 4294967295 vmas.

This is supported by
AMD64-ABI(http://www.x86-64.org/documentation.html) and
Solaris(http://docs.sun.com/app/docs/doc/817-1984/).
Of course, we are preparing patches for gdb and binutils.

Signed-off-by: Daisuke HATAYAMA <d.hatayama@jp.fujitsu.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Greg Ungerer <gerg@snapgear.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06 11:26:46 -08:00
..
alpha alpha: PTR_ERR overwrites -EINVAL in syscall osf_mount 2010-03-06 11:26:27 -08:00
arm Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2010-03-04 08:20:14 -08:00
avr32 USB: atmel uaba: Adding invert vbus_pin 2010-03-02 14:54:57 -08:00
blackfin Merge branch 'master' into percpu 2010-02-02 14:38:15 +09:00
cris cris v32: typo in crisv32_arbiter_unwatch()? 2010-03-06 11:26:28 -08:00
frv frv: remove pci_dma_sync_single() and pci_dma_sync_sg() 2010-03-06 11:26:27 -08:00
h8300 m68k{,nommu}/h8300: Remove obsolete comment about map_chunk 2010-02-27 18:27:14 +01:00
ia64 elf coredump: add extended numbering support 2010-03-06 11:26:46 -08:00
m32r Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2010-03-03 07:34:18 -08:00
m68k Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
m68knommu m68knommu: NPTL support for uClinux 2010-02-27 18:35:22 +01:00
microblaze Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2010-03-03 07:34:18 -08:00
mips Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2010-03-03 07:34:18 -08:00
mn10300 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
parisc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2010-03-03 07:34:18 -08:00
powerpc nodemask.h: remove macro any_online_node 2010-03-06 11:26:31 -08:00
s390 Merge branch 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2010-03-05 13:12:34 -08:00
score Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
sh Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
sparc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2010-03-04 08:24:47 -08:00
um elf coredump: add extended numbering support 2010-03-06 11:26:46 -08:00
x86 bitops: rename for_each_bit() to for_each_set_bit() 2010-03-06 11:26:23 -08:00
xtensa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-03-02 07:55:08 -08:00
.gitignore
Kconfig Merge branch 'perf-probes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-05 10:50:22 -08:00