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Add trace parsing for sanitizer output. The output is different
from debuggerd output (and we do not have control over it). Use
two separate regexes and factor out the parsing into a method
returning a tuple of data.

Note: as we have no control over the prologue of the dump, we
cannot change it to include information like the ABI. Thus, this
functionality only works in a lunched tree, where the tool
implicitly uses the symbols directory.

Change-Id: Ic1189f4f65cf7728d1baec7055ecb549b0aa5f62

Add a test for Mips64 stack-core.

Bug: 21555893
Change-Id: I2d6feba9bde3977cabc5e771bf14c55de1fbff53

Add register definitions to stack_core.

Change-Id: I2d9d2ae075efe8d8c92fac387d2ae30f9cbb999c

This is needed by the internal stack decoding website, which
will be pulling symbols from the build servers anyway (so doesn't
need to be correctly lunched).

Bug: 16734486
Change-Id: I9190065148c0d4bb4eacec28bcc062fa95798917

Left the default symbol.ARCH value intact and changed stack_core instead
so that it will assume the ABI is arm until it sees an ABI line.  This
allows compatibility for people who are used to pasting portions of a
tombstone instead of the whole thing (assuming said tombstone is arm)
while additionally supporting other architectures if a whole tombstone
  is pasted in.

(cherry picked from commit 15142f79)

Change-Id: Ide73171fc4e513b39bee74e2270252c3b32e23cd

Left the default symbol.ARCH value intact and changed stack_core instead
so that it will assume the ABI is arm until it sees an ABI line.  This
allows compatibility for people who are used to pasting portions of a
tombstone instead of the whole thing (assuming said tombstone is arm)
while additionally supporting other architectures if a whole tombstone
  is pasted in.

Change-Id: Ib8b5754920d2e2aa5017c29daeca59abcf4b547d

Also take into account the fact that the arm pcsr register is the
fifth entry on its line, so the stack tool previously stripped that
off.

(cherry picked from commit be4de46d)

Change-Id: I0a937ae1a36071c3aaa5d955f56ee034dfdfe7de

Also take into account the fact that the arm pcsr register is the
fifth entry on its line, so the stack tool previously stripped that
off.

Change-Id: I1dd2d11060e572b4d8ffd8710cf1df4d970671e4

The value corresponds to whether or not the line has matched one of the
detected formats (registers, header, backtrace, etc.) and can be used to
identify what logcat lines don't correspond to one of these formats.

Change-Id: Ibd7bc5a211dcfe86ea2f92d7e7941091afff4fc4

Change-Id: I474602eca37964e412acf8cb5f2441cd223852e4

x86 uses the x86_64 toolchain. There's no separate 32-bit toolchain.

I started to refactor so we could add FindToolchain tests, but that doesn't
work because FindToolchain depends on environment variables set up by 'lunch'.

Change-Id: I264b95e1e83a7e795f8cac49bc9e1cf497514029

Every architecture was at least slightly wrong. Rather than try to
tune the heuristics, let's just keep lists of all the registers.

Also start adding some unit tests.

Change-Id: I490dcc9855f7af1e3529734711400f366ffc4e0f

This includes the fairly large change of refactoring stack_core.py into
a class so that its behavior is compatible with adbs.  Additionally, if
the ABI line does not come before lines that require it to determine
proper widths (registers, stack), then it will assume that the ABI is
32 bit and not 64.

Change-Id: I6ad84a55337d86d25f7f8197048dc93868b0a01a

When QA paste a stack in to the decoder, we don't want to lose the
abort message.

Bug: 15701333
Change-Id: I538aab6b5cb6c20534b1b7027aec32bd78ee060c

Change-Id: Ib9736a0509edb97be15f5e89dbc3a5188e744416

pc values might now be 16 bytes wide. Also add support
for the arm64 architecture switch.

Change-Id: Ia2e0282f3bee03ef6092de285b0c32fa6da07cb0

[cherry-picked from internal master]

Change-Id: Idba672b1c12d17b790c7901514f90b7f14f7256c

Change-Id: Id71cacde653a5c1c92a028ee80f5aa8264e1963a