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Diffstat (limited to 'kBuild/units/dtrace.kmk')
| -rw-r--r-- | kBuild/units/dtrace.kmk | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/kBuild/units/dtrace.kmk b/kBuild/units/dtrace.kmk new file mode 100644 index 0000000..9625895 --- /dev/null +++ b/kBuild/units/dtrace.kmk @@ -0,0 +1,252 @@ +# $Id: dtrace.kmk 3284 2019-01-05 01:40:31Z bird $ +## @file +# DTrace unit. +# + +# +# Copyright (c) 2012-2017 knut st. osmundsen <bird-kBuild-spam-xviiv@anduin.net> +# +# This file is part of kBuild. +# +# kBuild is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# kBuild is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with kBuild; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +# +# +# As a special exception you are granted permission to include this file, via +# the kmk include directive, as you wish without this in itself causing the +# resulting makefile, program or whatever to be covered by the GPL license. +# This exception does not however invalidate any other reasons why the makefile, +# program, whatever should not be covered the GPL. +# +# + +ifdef UNIT_dtrace + $(error kBuild: The dtrace unit was included twice!) +endif +UNIT_dtrace = dtrace + +# Add our target properties. +PROPS_TOOLS += DTRACETOOL +PROPS_SINGLE += DTRACETOOL +PROPS_ACCUMULATE_R += DTRACE_HDR_FLAGS DTRACE_OBJ_FLAGS + +# Add ourselves to the default source handlers. +KBUILD_SRC_HANDLERS += \ + .d:def_src_handler_dtrace + + +## wrapper the compile command dependency check. +ifndef NO_COMPILE_CMDS_DEPS + _DEP_DTRACE_HDR_CMDS = $$(comp-cmds-ex $$($(target)_$(subst :,_,$(source))_DTRACE_HDR_CMDS_PREV_),$$(commands $(out)),FORCE) + _DEP_DTRACE_OBJ_CMDS = $$(comp-cmds-ex $$($(target)_$(subst :,_,$(source))_DTRACE_OBJ_CMDS_PREV_),$$(commands $(out)),FORCE) +else + _DEP_DTRACE_HDR_CMDS = + _DEP_DTRACE_OBJ_CMDS = +endif + + +## +# Generates the rule for creating a DTrace header from a D source file. +# +# @param out The output file. +# @param cmds The dtrace command(s). +# @param lots more +# +define def_dtrace_hdr_rule +$(out): \ + $(deps) \ + $(value _DEP_DTRACE_HDR_CMDS) \ + | \ + $(orderdeps) + %$$(call MSG_GENERATE,$(target),$$@,$(source)) + $$(QUIET)$$(RM) -f -- $(dep) $(out) + +$(cmds) + +ifndef NO_COMPILE_CMDS_DEPS +ifdef KBUILD_HAVE_OPTIMIZED_APPEND + %$$(QUIET2)$$(APPEND) -ni '$(dep)' \ + 'define $(target)_$(subst :,_,$(source))_DTRACE_HDR_CMDS_PREV_' \ + '--insert-command=$(out)' \ + 'endef' +else + %$$(QUIET2)$$(APPEND) '$(dep)' + %$$(QUIET2)$$(APPEND) '$(dep)' 'define $(target)_$(subst :,_,$(source))_DTRACE_HDR_CMDS_PREV_' + %$$(QUIET2)$$(APPEND) -c '$(dep)' '$(out)' + %$$(QUIET2)$$(APPEND) '$(dep)' 'endef' +endif +endif + +# update globals +_OUT_FILES += $(out) +$(target)_2_INTERMEDIATES += $(out) + +endef # def_dtrace_hdr_rule + + +## +# Generates the rule for creating a DTrace object file from a D source file +# and a bunch of object files. +# +# @param out The output file. +# @param cmds The dtrace command(s). +# @param lots more +# +define def_dtrace_obj_rule +$(out): \ + $(deps) \ + $$$$(filter-out %-dtrace-object-format.o, $$$$($(target)_2_OBJS)) \ + $(value _DEP_DTRACE_OBJ_CMDS) \ + | \ + $(orderdeps) + %$$(call MSG_GENERATE,$(target),$$@,$(source) ++) + $$(QUIET)$$(RM) -f -- $(dep) $(out) + +$(cmds) + +ifndef NO_COMPILE_CMDS_DEPS +ifdef KBUILD_HAVE_OPTIMIZED_APPEND + %$$(QUIET2)$$(APPEND) -ni '$(dep)' \ + 'define $(target)_$(subst :,_,$(source))_DTRACE_OBJ_CMDS_PREV_' \ + '--insert-command=$(out)' \ + 'endef' +else + %$$(QUIET2)$$(APPEND) '$(dep)' + %$$(QUIET2)$$(APPEND) '$(dep)' 'define $(target)_$(subst :,_,$(source))_DTRACE_OBJ_CMDS_PREV_' + %$$(QUIET2)$$(APPEND) -c '$(dep)' '$(out)' + %$$(QUIET2)$$(APPEND) '$(dep)' 'endef' +endif +endif + +# update globals +_OUT_FILES += $(out) +$(target)_2_OBJS <= $(out) + +endef # def_dtrace_obj_rule + + +## +# Handler for .d files listed in the SOURCES properties. +# +# .d files are transformed into .h that is used when compiling, thus needing +# to be generated before anything is compiled, and into object files that needs +# to go into the linking. Mac does not create object files. +# +# The step producing the object file requires all the object files with dtrace +# probes in them as input/output as well, because it adjusts the dtrace symbols +# from UNDEF to IGNORE. This is really ugly and cannot be expressed in make +# syntax (prerequisite object files being modified). Fortunately, it works +# fine because the object files won't be used by anyone else before the dtrace +# object file exists. +# +# @param target The target file. +# @param source The source file. +# @param lots more +# @returns quite a bit. +define def_src_handler_dtrace + +local type := DTRACE +local tmp := $(kb-src-tool tool) +ifeq ($(tool),) +$ (error kBuild: $(target) / $(sources) does not have a (DTRACE) tool defined!) +endif +local dtracedir := $($(target)_0_OUTDIR)/dtrace + +# +# The header file first. +# + +# Figure out all the props. +ifndef TOOL_$(tool)_DTRACE_HDR_CMDS +$(error kBuild: TOOL_$(tool)_DTRACE_HDR_CMDS isn't defined! target=$(target) source=$(source) ) +endif +## @todo put the header in a subdir and add this to INCS? Do we have a early per-target hook for this?? +local outbase := $(dtracedir)/dtrace/$(basename $(notdir $(source))) +local out := $(outbase).h +local tmp := $(kb-src-prop DTRACE_HDR_FLAGS,flags,left-to-right,) +local tmp := $(kb-src-prop DEPS,deps,left-to-right,$(defpath)) +local tmp := $(kb-src-prop ORDERDEPS,orderdeps,left-to-right,$(defpath)) +local dirdep := $(call DIRDEP,$(dir $(out))) + +# Adjust paths if we got a default path. +ifneq ($(defpath),) + local source := $(abspathex $(source),$(defpath)) +endif + +# dependency file. +local dep := $(out)$(SUFF_DEP) +ifndef NO_COMPILE_CMDS_DEPS + _DEPFILES_INCLUDED += $(dep) + $(eval includedep $(dep)) +endif + +# call the tool +local cmds := $(TOOL_$(tool)_DTRACE_HDR_CMDS) +local deps += $(TOOL_$(tool)_DTRACE_DEPEND) $(source) +local orderdeps += $(TOOL_$(tool)_DTRACE_DEPORD) $(dirdep) + +# generate the rule. +$(eval $(def_dtrace_hdr_rule)) + + +# +# Adjust the object files and generate one from the D source, if needed. +# +ifn1of ($(bld_trg), $(TOOL_$(tool)_DTRACE_OBJ_NOT_NEEDED)) + # Figure out all the props. + ifndef TOOL_$(tool)_DTRACE_OBJ_CMDS + $(error kBuild: TOOL_$(tool)_DTRACE_OBJ_CMDS isn't defined! target=$(target) source=$(source) ) + endif + local outbase := $(dtracedir)/$(basename $(notdir $(source))) + local out := $(outbase)-dtrace-object-format.o + local tmp := $(kb-src-prop DTRACE_OBJ_FLAGS,flags,left-to-right,) + local tmp := $(kb-src-prop DEPS,deps,left-to-right,$(defpath)) + local tmp := $(kb-src-prop ORDERDEPS,orderdeps,left-to-right,$(defpath)) + local dirdep := $(call DIRDEP,$(dir $(out))) + + # Adjust paths if we got a default path. + ifneq ($(defpath),) + local source := $(abspathex $(source),$(defpath)) + endif + + # dependency file. + local dep := $(out)$(SUFF_DEP) + ifndef NO_COMPILE_CMDS_DEPS + _DEPFILES_INCLUDED += $(dep) + $(eval includedep $(dep)) + endif + + # call the tool + local cmds := $(TOOL_$(tool)_DTRACE_OBJ_CMDS) + local deps += $(TOOL_$(tool)_DTRACE_DEPEND) $(source) + local orderdeps += $(TOOL_$(tool)_DTRACE_DEPORD) $(dirdep) + + # generate the rule. + $(eval $(def_dtrace_obj_rule)) +endif + +endef # def_src_handler_dtrace + + + +# +# The pre-target hook. +# +define def_unit_dtrace_target_pre + +local dtracedir := $($(target)_0_OUTDIR)/dtrace +$(eval $(target)_INCS += $(dtracedir)) + +endef #def_unit_dtrace_target_pre + |