Commit Graph

4 Commits

Author SHA1 Message Date
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00
Dean Michael Berris 59439dd069 [XRay] Use TSC delta encoding for custom/typed events
Summary:
This change updates the version number for FDR logs to 5, and update the
trace processing to support changes in the custom event records.

In the runtime, since we're already writing down the record preamble to
handle CPU migrations and TSC wraparound, we can use the same TSC delta
encoding in the custom event and typed event records that we use in
function event records. We do the same change to typed events (which
were unsupported before this change in the trace processing) which now
show up in the trace.

Future changes should increase our testing coverage to make custom and
typed events as first class entities in the FDR mode log processing
tools.

This change is also a good example of how we end up supporting new
record types in the FDR mode implementation. This shows the places where
new record types are added and supported.

Depends on D54139.

Reviewers: mboerger

Subscribers: hiraditya, arphaman, jfb, llvm-commits

Differential Revision: https://reviews.llvm.org/D54140

llvm-svn: 346293
2018-11-07 04:37:42 +00:00
Dean Michael Berris d2c50408d4 [XRay] Add TSC to NewCPUId Records
Summary:
This more correctly reflects the data written by the FDR mode runtime.

This is a continuation of the work in D50441.

Reviewers: mboerger, eizan

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51911

llvm-svn: 341905
2018-09-11 06:36:51 +00:00
Dean Michael Berris dd01efc56d [XRay] Add the `llvm-xray fdr-dump` implementation
Summary:
In this change, we implement a `BlockPrinter` which orders records in a
Block that's been indexed by the `BlockIndexer`. This is used in the
`llvm-xray fdr-dump` tool which ties together the various types and
utilities we've been working on, to allow for inspection of XRay FDR
mode traces both with and without verification.

This change is the final step of the refactoring of D50441.

Reviewers: mboerger, eizan

Subscribers: mgorny, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51846

llvm-svn: 341887
2018-09-11 00:22:53 +00:00