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# Copyright 2019 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import("//build/buildflag_header.gni")
import("//build/config/chromeos/ui_mode.gni")
import("//build/config/compiler/compiler.gni")
import("//build/config/dcheck_always_on.gni")
declare_args() {
# Use LogErrorNotReached() for NOTREACHED().
enable_log_error_not_reached =
is_chromeos_ash && !(is_debug || dcheck_always_on)
enable_stack_trace_line_numbers = symbol_level > 0
# Use runtime vlog everywhere except for ash-chrome.
# When `use_runtime_vlog` is true,
# command line switch `--vmodule=xxx` or `--v=x` could be used to
# control vlog level at runtime.
# when `use_runtime_volog` is false,
# verbose log level is controlled by `ENABLE_VLOG_LEVEL` macro. VLOG(n)
# is kept and generate output if `n` is less than or equal to the vlog
# level defined by the macro.
# Command line switch `--vmodule=xxx`, or `--v=x` would have no effect.
#
# Runtime vlog is used everywhere except on ash-chrome.
# Ash-chrome has a few vmodule patterns that need to be used indefinitely
# to investigate problems from logs in feedback reports. These vmodule
# patterns are using too much cpu cycles (see http://crbug/489441). Turning
# off runtime vlog and using build time vlog would avoid paying that cpu tax
# and have a nice side effect of a smaller production binary.
use_runtime_vlog = !is_chromeos_ash
}
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