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a5854dd7f3
With this change, the arch/tile Makefile will only check for a valid combination of CROSS_COMPILE vs "uname -m" for a few common targets that are typically the ones we get wrong (vmlinux, all, and modules). The change handles the case of an empty "make" goal like "make all". Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
55 lines
1.7 KiB
Makefile
55 lines
1.7 KiB
Makefile
#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies. Remember to do have actions
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# for "archclean" and "archdep" for cleaning up and making dependencies for
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# this architecture
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# If building with TILERA_ROOT set (i.e. using the Tilera Multicore
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# Development Environment) we can set CROSS_COMPILE based on that.
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# If we're not cross-compiling, make sure we're on the right architecture.
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# Only bother to test for a few common targets, to avoid useless errors.
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ifeq ($(CROSS_COMPILE),)
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ifdef TILERA_ROOT
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CROSS_COMPILE := $(TILERA_ROOT)/bin/tile-
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else
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goals := $(if $(MAKECMDGOALS), $(MAKECMDGOALS), all)
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ifneq ($(strip $(filter vmlinux modules all,$(goals))),)
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HOST_ARCH := $(shell uname -m)
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ifneq ($(HOST_ARCH),$(ARCH))
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$(error Set TILERA_ROOT or CROSS_COMPILE when building $(ARCH) on $(HOST_ARCH))
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endif
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endif
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endif
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endif
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KBUILD_CFLAGS += $(CONFIG_DEBUG_EXTRA_FLAGS)
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LIBGCC_PATH := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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# Provide the path to use for "make defconfig".
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KBUILD_DEFCONFIG := $(ARCH)_defconfig
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# Used as a file extension when useful, e.g. head_$(BITS).o
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# Not needed for (e.g.) "$(CC) -m32" since the compiler automatically
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# uses the right default anyway.
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export BITS
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ifeq ($(CONFIG_TILEGX),y)
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BITS := 64
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else
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BITS := 32
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endif
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head-y := arch/tile/kernel/head_$(BITS).o
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libs-y += arch/tile/lib/
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libs-y += $(LIBGCC_PATH)
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# See arch/tile/Kbuild for content of core part of the kernel
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core-y += arch/tile/
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