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Diffstat (limited to 'solenv/gbuild/Trace.mk')
| -rw-r--r-- | solenv/gbuild/Trace.mk | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/solenv/gbuild/Trace.mk b/solenv/gbuild/Trace.mk new file mode 100644 index 000000000..8d416157d --- /dev/null +++ b/solenv/gbuild/Trace.mk @@ -0,0 +1,61 @@ +# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*- +# +# This file is part of the LibreOffice project. +# +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. +# + +# Support for tracing what gbuild does. +# Run 'make GBUILD_TRACE=/somewhere/log.json', process the file +# using solenv/bin/finish-gbuild-trace.py, and then view it in Chromium +# using the chrome://tracing URL: +# - the '?' icon in the top-right is the help +# - 'gbuild' rows represent per-parallelism (per-CPU) usage in time +# - 'totals' rows represent sums for reach build type +# - note that 'EXTERNAL' targets do not detect whether the external package +# is built with parallelism or not, so the actual CPU time may be higher +# - vertical lines represent targets that themselves do not take any time +# to build +# - any target can be found using the search field in the top right corner +# (just type e.g. '[MOD]: sal' and hit the '->' button, if you cannot see +# it pressing 'm' or 'f' can help) + +gb_TRACE := +ifneq ($(GBUILD_TRACE),) +gb_TRACE := $(abspath $(GBUILD_TRACE)) +endif + +ifneq ($(gb_TRACE),) + +# call gb_Trace_AddMark,marktype,detail,type,extra +# The (flock;cat) part is to minimize lock time. +define gb_Trace__AddMark +echo "{\"name\": \"$(3)\", \"ph\": \"$(1)\", \"pid\": 1, \"tid\": 1, \"ts\": $$(date +%s%N),\"args\":{\"message\":\"[$(3)]: $(2)\"}}," | ( flock 1; cat ) >>$(gb_TRACE) +endef + +# call gb_Trace_StartRange,detail,type +define gb_Trace_StartRange +$(call gb_Trace__AddMark,B,$(1),$(2)) +endef + +# call gb_Trace_EndRange,detail,type +define gb_Trace_EndRange +$(call gb_Trace__AddMark,E,$(1),$(2)) +endef + +# call gb_Trace_MakeMark,detail,type +define gb_Trace_MakeMark +$(call gb_Trace__AddMark,i,$(1),$(2)) +endef + +ifeq ($(MAKE_RESTARTS),) +$(shell rm -f $(gb_TRACE) 2>/dev/null) +else +$(shell $(call gb_Trace__AddMark,i,make restart,MAKE)) +endif + +endif + +# vim: set noet sw=4 ts=4: |