Remove symlink lib-boostrap

next CL will populate mips64r6 lib and lib-boostrap in real directory
previous symlink to android-9/arch-mips which is mips64r2

Change-Id: I59baeb4e5b6f32e0c52c6a0d1a54985808f0534f
Turning stack_core into a class to make it compatible with adbs.

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
Merge "Turning stack_core into a class to make it compatible with adbs."
Fix FindToolchain for mips.

Change-Id: Ib2689e24065e9d5a0c249a26c63e6493327fc0b1
Merge "Fix FindToolchain for mips."
Fix 'stack' register matching for all architectures.

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
Merge "Fix 'stack' register matching for all architectures."
stack_core now also detects the "Revision: #" line.

Change-Id: I474602eca37964e412acf8cb5f2441cd223852e4
Merge "stack_core now also detects the "Revision: #" line."
stack_core ProcessLine now returns a boolean.

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
Merge "stack_core ProcessLine now returns a boolean."
Fix symbol.py's toolchain detection for x86.

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
Merge "Fix symbol.py's toolchain detection for x86."
Merge "Remove symlink lib-boostrap"
Update mips64 lib-bootstrap

Turns out previously built mips64el* are mips64r2, not mips64r6

Change-Id: Ic0f82fafe959716eb3a909e367d599a3d4293047
Merge "Update mips64 lib-bootstrap"
Refresh 64-bit headers/libs (WW28)

Change-Id: Ib798ab4730c3b242bc784548ea2d4ffaea5c90d7
Merge "Refresh 64-bit headers/libs (WW28)"
Update dlext.h header

Change-Id: Id375e8101f8b86078cdee024184a4ef9d9064928
Merge "Update dlext.h header"