34 lines
1.4 KiB
Plaintext
34 lines
1.4 KiB
Plaintext
ifneq ($(filter xtensa%,$(ARCH)),)
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#############################################################
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#
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# Xtensa processor architecture (including Diamond Standard cores)
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#
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#############################################################
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# The following defines a function to be used like this:
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# $(call XTENSA_PATCH, <module>, <patchdir>, <relative dir list...>)
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# which returns the first overlay patch file for <module> found
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# in the list of directories <relative dir list...> which are
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# relative to <patchdir> (itself either absolute or relative to the
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# current directory). The returned filename is relative to <patchdir>.
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# For example:
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# $(call XTENSA_PATCH, binutils, some/dir/path, . ..)
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# (no commas between directory paths in the list).
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#
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# A selected overlay patch must exist ("fsf" means no specific
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# overlay is selected). So the function emits a Makefile error
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# if a selected patch file is not found.
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XTENSA_CORENAME:=$(call qstrip,$(BR2_xtensa_core_name))
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ifeq ($(XTENSA_CORENAME),fsf)
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XTENSA_PATCH =
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else
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XTENSA_PATCH_SUFFIX = $(1)-xtensa_$(XTENSA_CORENAME).tgz
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XTENSA_PATCH_FILE = $(firstword $(wildcard $(patsubst %,$(2)/%/*$(XTENSA_PATCH_SUFFIX),$(3))))
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# FULLPATH = $(if $(filter /%,$(1)),$(1),$(PWD)/$(1))
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XTENSA_PATCH = $(if $(XTENSA_PATCH_FILE),$(patsubst $(2)/%,%,$(XTENSA_PATCH_FILE)),\
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$(error Missing $(1) patch for Xtensa $(XTENSA_CORENAME) processor (*$(XTENSA_PATCH_SUFFIX) in $(addprefix $(2)/,$(3)))))
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endif
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endif
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