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3216484550
The objects placed at the head of vmlinux need special treatments: - arch/$(SRCARCH)/Makefile adds them to head-y in order to place them before other archives in the linker command line. - arch/$(SRCARCH)/kernel/Makefile adds them to extra-y instead of obj-y to avoid them going into built-in.a. This commit gets rid of the latter. Create vmlinux.a to collect all the objects that are unconditionally linked to vmlinux. The objects listed in head-y are moved to the head of vmlinux.a by using 'ar m'. With this, arch/$(SRCARCH)/kernel/Makefile can consistently use obj-y for builtin objects. There is no *.o that is directly linked to vmlinux. Drop unneeded code in scripts/clang-tools/gen_compile_commands.py. $(AR) mPi needs 'T' to workaround the llvm-ar bug. The fix was suggested by Nathan Chancellor [1]. [1]: https://lore.kernel.org/llvm/YyjjT5gQ2hGMH0ni@dev-arch.thelio-3990X/ Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
21 lines
579 B
Makefile
21 lines
579 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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extra-y := vmlinux.lds
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obj-y += head.o
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obj-$(CONFIG_SMP) += smp.o
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obj-y += setup.o irq_cpu.o traps.o syscalltab.o signal.o time.o
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obj-y += process.o trampoline.o reset.o ptrace.o vdso.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_MODULES) += module.o hexagon_ksyms.o
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# Modules required to work with the Hexagon Virtual Machine
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obj-y += vm_entry.o vm_events.o vm_switch.o vm_ops.o vm_init_segtable.o
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obj-y += vm_vectors.o
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obj-$(CONFIG_HAS_DMA) += dma.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-$(CONFIG_VGA_CONSOLE) += screen_info.o
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