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[PATCH] kdump: Access dump file in elf format (/proc/vmcore)

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From: "Vivek Goyal" <[email protected]>

o Support for /proc/vmcore interface. This interface exports elf core image
  either in ELF32 or ELF64 format, depending on the format in which elf headers
  have been stored by crashed kernel.
o Added support for CONFIG_VMCORE config option.
o Removed the dependency on /proc/kcore.

From: "Eric W. Biederman" <[email protected]>

This patch has been refactored to more closely match the prevailing style in
the affected files.  And to clearly indicate the dependency between
/proc/kcore and proc/vmcore.c

From: Hariprasad Nellitheertha <[email protected]>

This patch contains the code that provides an ELF format interface to the
previous kernel's memory post kexec reboot.

Signed off by Hariprasad Nellitheertha <[email protected]>
Signed-off-by: Eric Biederman <[email protected]>
Signed-off-by: Vivek Goyal <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Vivek Goyal 2005-06-25 14:58:21 -07:00 • committed by Linus Torvalds
commit 666bfddbe8
7 changed files with 476 additions and 1 deletions
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6
fs/Kconfig
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@ -734,6 +734,12 @@ config PROC_KCORE
bool "/proc/kcore support" if !ARM
depends on PROC_FS && MMU
config PROC_VMCORE
bool "/proc/vmcore support (EXPERIMENTAL)"
depends on PROC_FS && EMBEDDED && EXPERIMENTAL && CRASH_DUMP
help
Exports the dump image of crashed kernel in ELF format.
config SYSFS
bool "sysfs file system support" if EMBEDDED
default y