This is to account for the change that made CountersPtr in __profd_
relative which landed in a1532ed27582038e2d9588108ba0fe8237f01844.
That change hasn't updated the raw profile version, and while the
profile layout stayed the same, profiles generated by tip-of-tree
LLVM are incompatible with 13.x tooling.
Differential Revision: https://reviews.llvm.org/D111123
This fixes support for merging profiles which broke as a consequence
of e50a38840dc3db5813f74b1cd2e10e6d984d0e67. The issue was missing
adjustment in merge logic to account for the binary IDs which are
now included in the raw profile just after header.
In addition, this change also:
* Includes the version in module signature that's used for merging
to avoid accidental attempts to merge incompatible profiles.
* Moves the binary IDs size field after version field in the header
as was suggested in the review.
Differential Revision: https://reviews.llvm.org/D107143
Revert "[profile] Change linkage type of a compiler-rt func"
This reverts commits f984ac2715f71c38a7872fa2c2ad535b3d4fa285 and
467c7191249b76abff33853b1692a77f327c2422 because it broke some builds.
