tree 31c62a93e37f6052aa99e2addacef6c060d75e85
parent 37050126ef89ec30cc677c272471debe55ec0d69
author Lorenz Brun <lorenz@nexantic.com> 1617101229 +0200
committer Leopold Schabel <leo@nexantic.com> 1618304645 +0200

Add ftrace support to DebugService

This allows us to do ad-hoc kernel-level tracing on a running Metropolis node.
Useful for tracking down complex bugs.

Example: `bazel run //metropolis/cli/dbg -- trace -function_graph_filter blkdev_* function_graph`

Test Plan: Debug utility, manually tested

X-Origin-Diff: phab/D748
GitOrigin-RevId: 924eb795250412a73eb30c0eef4a8c1cc726e5fd