build/config/profile/config.gni

# Copyright 2021 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

declare_args() {
  # List of GN paths to source files to be instrumented by `profile` variants.
  # If [`profile_source_files_list_files`](#profile_source_files_list_files) is
  # also set, both lists are used.  Use that option with a file constructed
  # separately instead to use more complex selection features such as
  # per-function selection, file name patterns, or exclusion.
  profile_source_files = [
    # Default: profile all sources under //.
    # See: fxbug.dev/89451 for context.
    "//*",
  ]

  # List GN path to files in Clang's `-fprofile-list` format describing files
  # and functions to be instrumented by `profile` variants.  Note that if
  # [`profile_source_files`](#profile_source_files) is also set, both are used.
  profile_source_files_list_files = []
}

# This helps build code discern whether all code is being instrumented by
# default or not.  If it's true, then additional -fprofile-list=... switches
# may be required to ensure particular code (e.g. in tests) gets instrumented.
#
# Type: bool
selective_profiling =
    profile_source_files + profile_source_files_list_files != []