Commit-ID: 9fb81323eb3085b6a47fe81d78541958ae7eaea3 Gitweb: http://git.kernel.org/tip/9fb81323eb3085b6a47fe81d78541958ae7eaea3 Author: Jiri Olsa <jolsa@xxxxxxxxxx> AuthorDate: Wed, 23 Sep 2015 12:34:00 +0200 Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> CommitDate: Mon, 28 Sep 2015 15:50:55 -0300 tools build: Make the fixdep helper part of the build process Making the fixdep helper to be invoked within dep-cmd. Each user of the build framework needs to make sure fixdep exists before executing the build itself. If the build doesn't find fixdep, it falls back to the old style dependency tracking. Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: David Ahern <dsahern@xxxxxxxxx> Cc: Namhyung Kim <namhyung@xxxxxxxxxx> Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> Link: http://lkml.kernel.org/r/1443004442-32660-6-git-send-email-jolsa@xxxxxxxxxx Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- tools/build/Build.include | 10 ++++++++-- tools/build/Makefile.build | 7 +++++++ 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/tools/build/Build.include b/tools/build/Build.include index 851c420..4d000bc 100644 --- a/tools/build/Build.include +++ b/tools/build/Build.include @@ -58,8 +58,14 @@ any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^) # Copy dependency data into .cmd file # - gcc -M dependency info # - command line to create object 'cmd_object :=' -dep-cmd = cat $(depfile) > $(dot-target).cmd; \ - printf '%s\n' 'cmd_$@ := $(make-cmd)' >> $(dot-target).cmd +dep-cmd = $(if $(wildcard $(fixdep)), \ + $(fixdep) $(depfile) $@ '$(make-cmd)' > $(dot-target).tmp; \ + rm -f $(depfile); \ + mv -f $(dot-target).tmp $(dot-target).cmd, \ + printf '\# cannot find fixdep (%s)\n' $(fixdep) > $(dot-target).cmd; \ + printf '\# using basic dep data\n\n' >> $(dot-target).cmd; \ + cat $(depfile) >> $(dot-target).cmd; \ + printf '%s\n' 'cmd_$@ := $(make-cmd)' >> $(dot-target).cmd) ### # if_changed_dep - execute command if any prerequisite is newer than diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build index 0c5f485..4a96473 100644 --- a/tools/build/Makefile.build +++ b/tools/build/Makefile.build @@ -21,6 +21,13 @@ endif build-dir := $(srctree)/tools/build +# Define $(fixdep) for dep-cmd function +ifeq ($(OUTPUT),) + fixdep := $(build-dir)/fixdep +else + fixdep := $(OUTPUT)/fixdep +endif + # Generic definitions include $(build-dir)/Build.include -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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