build: fetch submodules as required
Also document the unusual git feature we employ for 3rdparty Change-Id: I1d1c986f9d1c4dd8db687d746dbdeb510679141a Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: http://review.coreboot.org/7243 Tested-by: build bot (Jenkins) Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
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@ -123,7 +123,11 @@ ifeq ($(CONFIG_COVERAGE),y)
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CFLAGS_ramstage += -fprofile-arcs -ftest-coverage
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endif
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# try to fetch non-optional submodules
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forgetthis:=$(shell git submodule update --init)
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ifeq ($(CONFIG_USE_BLOBS),y)
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# this is necessary because 3rdparty is update=none, and so is ignored
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# unless explicitly requested and enabled through --checkout
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forgetthis:=$(shell git submodule update --init --checkout 3rdparty)
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endif
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