- add alignment for for map and map+size in unmap_file
- add test on file_io for dr_unmap_file
- add code to handle unmap failure

git-svn-id: https://dynamorio.googlecode.com/svn/trunk@1872 49cc7528-f6fd-11dd-9d1a-b59b2e1864b6
i#1017: switch the samples CMakeLists.txt from a loop with name-matched
exceptions to an easier-to-understand list of samples.

git-svn-id: https://dynamorio.googlecode.com/svn/trunk@1873 49cc7528-f6fd-11dd-9d1a-b59b2e1864b6
Add a proper notification when running an application of the wrong bitwidth
(once we have i#803 this should work at least from x64 to wow64).
Prior to this change, the app would be run natively, silently, with the
user wondering whether his client ran at all.

git-svn-id: https://dynamorio.googlecode.com/svn/trunk@1874 49cc7528-f6fd-11dd-9d1a-b59b2e1864b6
Add opnd_size_from_bytes()

git-svn-id: https://dynamorio.googlecode.com/svn/trunk@1875 49cc7528-f6fd-11dd-9d1a-b59b2e1864b6