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Commit c33621b4c5 ("x86/virt/tdx: Wire up basic SEAMCALL functions")
introduced a new instance of core-y instead of the standardized obj-y
syntax.
X86 Makefiles descend into subdirectories of arch/x86/virt inconsistently;
into arch/x86/virt/ via core-y defined in arch/x86/Makefile, but into
arch/x86/virt/svm/ via obj-y defined in arch/x86/Kbuild.
This is problematic when you build a single object in parallel because
multiple threads attempt to build the same file.
$ make -j$(nproc) arch/x86/virt/vmx/tdx/seamcall.o
[ snip ]
AS arch/x86/virt/vmx/tdx/seamcall.o
AS arch/x86/virt/vmx/tdx/seamcall.o
fixdep: error opening file: arch/x86/virt/vmx/tdx/.seamcall.o.d: No such file or directory
make[4]: *** [scripts/Makefile.build:362: arch/x86/virt/vmx/tdx/seamcall.o] Error 2
Use the obj-y syntax, as it works correctly.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20240330060554.18524-1-masahiroy@kernel.org
35 lines
575 B
Makefile
35 lines
575 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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obj-$(CONFIG_ARCH_HAS_CC_PLATFORM) += coco/
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obj-y += entry/
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obj-$(CONFIG_PERF_EVENTS) += events/
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obj-$(CONFIG_KVM) += kvm/
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# Xen paravirtualization support
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obj-$(CONFIG_XEN) += xen/
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obj-$(CONFIG_PVH) += platform/pvh/
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# Hyper-V paravirtualization support
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obj-$(subst m,y,$(CONFIG_HYPERV)) += hyperv/
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obj-y += realmode/
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obj-y += kernel/
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obj-y += mm/
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obj-y += crypto/
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obj-$(CONFIG_IA32_EMULATION) += ia32/
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obj-y += platform/
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obj-y += net/
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obj-$(CONFIG_KEXEC_FILE) += purgatory/
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obj-y += virt/
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# for cleaning
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subdir- += boot tools
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