build: add a config option for passing the top-level make jobserver to packages that have parallel build enabled, significantly improves parallelization and gets rid of CPU overcommit during intra-package parallel builds
SVN-Revision: 33414
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@@ -15,11 +15,17 @@ PKG_MD5SUM ?= unknown
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PKG_BUILD_PARALLEL ?=
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PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
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ifneq ($(CONFIG_PKG_BUILD_USE_JOBSERVER),)
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MAKE_J:=$(MAKE_JOBSERVER)
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else
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MAKE_J:=-j$(CONFIG_PKG_BUILD_JOBS)
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endif
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ifeq ($(strip $(PKG_BUILD_PARALLEL)),0)
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PKG_JOBS?=-j1
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else
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PKG_JOBS?=$(if $(PKG_BUILD_PARALLEL)$(CONFIG_PKG_DEFAULT_PARALLEL),\
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$(if $(CONFIG_PKG_BUILD_PARALLEL),-j$(CONFIG_PKG_BUILD_JOBS),-j1),-j1)
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$(if $(CONFIG_PKG_BUILD_PARALLEL),$(MAKE_J),-j1),-j1)
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endif
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include $(INCLUDE_DIR)/prereq.mk
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