ListWalker.__init__ was recently changed to remove some unneeded
arguments. The vmalloc parser was also updated at roughly the same time
with a new usage of the ListWalker class and was using the old
constructor. Update it.

Change-Id: Ia47c22511aab7207b65813d25c9f97d65c24e2db

It's not always useful to pass extra data to the list walker function.
For example, if the list walker function is a class method, state can be
passed around by simply modifying class instance variables. Update
`ListWalker.walk' to accept extra arguments optionally, not require
them.

Change-Id: I433f1e34db5c143c838f0eb2ed7f58203712ccb3

The parser now requires Python 2.7 so that 2.7-specific features can be
leveraged. Update the README to reflect this.

Change-Id: I7e1ba9f99f077c7f48ed7b44ab24f56f0f18c3ea

[29d3f2ed: "lrdp-v2: refactor Iommu domain parsing code"] introduced
an extra argument for rb_tree `walker' functions, but didn't update the
runqueue rb_tree user, so the ramdump parser currently fails to print
the runqueue state. Fix this.

For certain dumps, before this change we would see the following
backtrace:

    Traceback (most recent call last):
      File "ramparse.py", line 266, in <module>
        p.cls(dump).parse()
      File "parsers/runqueue.py", line 196, in parse
        self.print_cfs_state(cfs_rq_addr)
      File "parsers/runqueue.py", line 101, in print_cfs_state
        rb_walker.walk(tasks_timeline_addr, self.cfs_node_func)
      File "rb_tree.py", line 54, in walk
        self._walk(node, func, [], extra)
      File "rb_tree.py", line 39, in _walk
        self._walk(left_node, func, seen, extra)
      File "rb_tree.py", line 39, in _walk
        self._walk(left_node, func, seen, extra)
      File "rb_tree.py", line 41, in _walk
        func(node, extra)
    TypeError: cfs_node_func() takes exactly 2 arguments (3 given)

Change-Id: Ic19ec42d6cfbe87b6e0a0e99c6adf7c41e5b35e9

Because pages are constantly being allocated and freed, the pagetypeinfo
may not be in a consistent state when dumps are collected. Check
to make sure there are no cycles in the list for more than just the
next item.

Change-Id: Ie986bbb78f39923dbe11ef0446912518bc6c7fc5

Sizes for 64-bit are different. Update rtb accordingly.

Change-Id: Ie7c4014cc22b7c071017bb3d76519542ba58082d

It's bothersome at a fundamental level that the first line of the
stack trace is printed out on the same line as the 'Stack:' tag.
Fix it.

Change-Id: I895ad0969c4afb5b081ad10dca180a2bb1178291

The number of interrupts is an int which is different from the word
size. Switch to it.

Change-Id: I06b5186ac0121854870606c78488c26f22d79f2c

The way the vmalloc list is walked has changed to use a different
structure. The old structure is now freed at init time. This may
not be noticed if init memory isn't freed. Switch to a method that
does not rely on not freeing initmem.

Change-Id: I9f9b095ac4740ff13c1f54e39c641f286941a63f

Many of the lists are very large and may overflow if traversed
recursively. Switch to an iterative method instead.

Change-Id: I8bf476eefae7e223a16fdd50bb9b10d7c24cb247

Reading 64 bits of data is needed at times. Add a dedicated function

Change-Id: Ibef3777a574fb4ea87af51ab8230af7d4402c4f9

Currently, if the user doesn't specify a vmlinux image or an
autodumpdir (like when running ramparse.py with absolutely no arguments)
they get a big ugly python stacktrace and no helpful error message. Fix
this.

Change-Id: I2d5aaaae5c8afd651ef48cfbd8f974227c2032fe

The IOMMU parser currently only supports short-descriptor format page
tables but hardware supports long-descriptor format page tables. Add
support for the long-descriptor format. Most of the existing LPAE MMU
code can be re-used for this, although it must be refactored a bit.

Change-Id: I464d7edeb8818c0be9de1e1a8224bc9b478eac37