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>
47 lines
1.5 KiB
Makefile
47 lines
1.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for arch/parisc/kernel
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#
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extra-y := vmlinux.lds
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obj-y := head.o cache.o pacache.o setup.o pdt.o traps.o time.o irq.o \
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pa7300lc.o syscall.o entry.o sys_parisc.o firmware.o \
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ptrace.o hardware.o inventory.o drivers.o alternative.o \
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signal.o hpmc.o real2.o parisc_ksyms.o unaligned.o \
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process.o processor.o pdc_cons.o pdc_chassis.o unwind.o \
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patch.o toc.o toc_asm.o
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ifdef CONFIG_FUNCTION_TRACER
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# Do not profile debug and lowlevel utilities
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CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_cache.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_perf.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_unwind.o = $(CC_FLAGS_FTRACE)
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CFLAGS_REMOVE_patch.o = $(CC_FLAGS_FTRACE)
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endif
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_PA11) += pci-dma.o
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obj-$(CONFIG_PCI) += pci.o
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obj-$(CONFIG_MODULES) += module.o
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obj-$(CONFIG_64BIT) += sys_parisc32.o signal32.o
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obj-$(CONFIG_STACKTRACE)+= stacktrace.o
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obj-$(CONFIG_AUDIT) += audit.o
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obj64-$(CONFIG_AUDIT) += compat_audit.o
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# only supported for PCX-W/U in 64-bit mode at the moment
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obj-$(CONFIG_64BIT) += perf.o perf_asm.o $(obj64-y)
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obj-$(CONFIG_GENERIC_ARCH_TOPOLOGY) += topology.o
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obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o
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obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
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obj-$(CONFIG_JUMP_LABEL) += jump_label.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_KPROBES) += kprobes.o
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obj-$(CONFIG_KEXEC_CORE) += kexec.o relocate_kernel.o
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obj-$(CONFIG_KEXEC_FILE) += kexec_file.o
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# vdso
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obj-y += vdso.o
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obj-$(CONFIG_64BIT) += vdso64/
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obj-y += vdso32/
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