MMU.virt_to_phys currently lacks a docstring. They're useful, so add
one.

Change-Id: I95b0a7a8f97912f178157eb4b68c453585e547bd

Some common operations include getting the parent structure of some
embedded field as well as getting "sibling" fields within the parent
structure. Add some convenience methods to the gdbmi module (as well as
wrappers in the RamDump class) for this.

Change-Id: Ic65d7e60b930af8c73384a30b6b0dd84fb55f09c

Move to the new sizes module to avoid repetition.

Change-Id: I5b18837bb47c0077976e84bcc3af59a30ce42614

Add a convenience module with definitions for common sizes, conversions
to strings, functions for working with orders, etc.

Change-Id: I922d6daa0c021a0d189b53aac76ed211e8864923

out_dir is not used anymore. Remove it.

Change-Id: I082e0642a352e91b232ce02fe40e20a200de9fc8

Currently we error out and ask the user to create the output directory
if it doesn't exist. As a convenience, just create the directory for
them.

Change-Id: I0e9caa8294d644621bd166a06e2a70c8ca5715fc

It's not uncommon for the vmlinux file to live in the same directory as
the actual RAM dumps. If the users doesn't explicitly specify a vmlinux
image to use, look for it in the autodump dir. If we still can't find it
there, error out as usual.

Change-Id: I702c5584477e26912e0857dbd03b02491bd33c6c

When local_settings.py is missing variables we just error out when
trying to access those attributes. Improve the error message by
mentioning local_settings.py and pointing the user to README.txt.

Change-Id: Iaa2a1ab96ca889d75972bbfa1d4e127a8bf5bec1

Add support to RamDump.virt_to_phys for automatically looking up
addresses of symbols when a string is passed in. This will simplify code
that uses the RamDump.read_* routines.

Old way:

    mydata_addr = ramdump.addr_lookup('data_var')
    mydata2_addr = ramdump.addr_lookup('data2_var')

    mydata = ramdump.read_word(mydata_addr)
    mydata2 = ramdump.read_word(mydata2_addr)

New way:

    mydata = ramdump.read_word('data_var')
    mydata2 = ramdump.read_word('data2_var')

Of course, the "Old way" will still work.

Change-Id: I0c006f5135b48f8385d2107d9b9d2fe767a266b0

During development, it's quite convenient to load up an interactive
python interpreter with a RamDump instance loaded. Add some command line
switches to launch an interactive shell with the RamDump instance that
gets created as a result of whatever other command line options are
passed.

If IPython is installed, an IPython interpreter will be launched,
otherwise a classic Python interpreter will be launched. The classic
interface can also be forced with --classic-shell.

Change-Id: Id59acb97a830055212de9db3eaf05f18358f757f

When calculating pfn_to_page, the pfn needs to be offset before
indexing into the array. Account for this.

Change-Id: If207447a91537ab7670058fede65473d3ea93281

When checking for rodata differences, we scan the ELF headers of
the vmlinux. Newer vmlinux files seem to have extra ELF headers
with addresses outside the valid mapped range. If we encounter
one of those headers and read an invalid address, skip it.

Change-Id: I2a8af784df7216bf9d890be42eec8599fbaa7f72

Commit 3d6a90bd
(linux-ramdump-parser-v2: Don't use ram start address in socinfo)
corrected the case for --auto-dump detection but broke the case of
specifying ram files manually with addresses. When specifying the
addresses manually, the addresses given are correct so the ram start
does need to be added. Correct the code to add the offset by default
but not add when doing autodetection.

Change-Id: I50d54a932210afeace49a898dd819dc46c3e3aa1

The page_tracking code is missing the page_buddy import. Import it.

Change-Id: I0030305e51f470cdd379f8237bb15c912601e861

Ram dumps are now being generated for 64-bit ramdumps. Update the
parser to account for this.

Change-Id: I54a354f39701ad96dd7b81010ec6c5989dd471ad

array_index properly accounts for the changes in sizes of array
items. Use it.

Change-Id: I0dd0fb70f968a2b837a3d2aa02ae3d02ad5a578a

Several of the values used in printing the runqueues are actually
ints, not words. Correct the type used.

Change-Id: I1b700a679d1dee04d2de28e9ec8d8e343e03fbe4

The ramdump APIs now provide functions for accessing per CPU
variables. Use those instead of writing the same code over again.

Change-Id: Ia34a9b1a279e8385bdc08b2612e59fdfe0e1f958

The IRQ parsing makes some non-generic assumptions about the sizes
of various fields in the structures. Update the parsing to use better
types.

Change-Id: I914f6104e7f914aa941b301a71c38182806e11cc

Rather than assume a text offset, use one that is already found
as a symbol.

Change-Id: I1ad608085984bb0b658d371858cf01e0732811a3

The socinfo code depends on fixed size types which may be different
from the word size. Update the parsing accordingly.

Change-Id: I7c4a23f92e13349c9ebd67aa69438d1a55aba721