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Diffstat (limited to 'solenv/gbuild/Trace.mk')
| -rw-r--r-- | solenv/gbuild/Trace.mk | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/solenv/gbuild/Trace.mk b/solenv/gbuild/Trace.mk new file mode 100644 index 0000000000..a92f842e1d --- /dev/null +++ b/solenv/gbuild/Trace.mk @@ -0,0 +1,69 @@ +# -*- 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 $(GBUILD_TRACE)) +ifeq ($(OS),WNT) +# abspath turns it into a windows-style path, but the build needs unix-style +gb_TRACE := $(shell cygpath -u $(gb_TRACE)) +endif +endif + +ifneq ($(gb_TRACE),) +# macOS date doesn't know about nanoseconds switch, and instead of resorting to perl or python +# to create a millisecond timestamp, just avoid the overhead and live with seconds-only accuracy +gb_Trace_Timestamp := $(if $(filter MACOSX,$(OS)),$$(date +%s)000000000,$$(date +%s%N)) +# macOS also doesn't provide flock, so skip that part on mac +# The (flock;cat) part is to minimize lock time. +gb_Trace_Flock := $(if $(filter MACOSX,$(OS)),,| ( flock 1; cat )) +# call gb_Trace_AddMark,marktype,detail,type,extra +define gb_Trace__AddMark +echo "{\"name\": \"$(3)\", \"ph\": \"$(1)\", \"pid\": 1, \"tid\": 1, \"ts\": $(gb_Trace_Timestamp),\"args\":{\"message\":\"[$(3)]: $(2)\"}}," $(gb_Trace_Flock) >>$(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: |