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ia64: thin archives fix linking 

The VDSO symbols can't be linked into built-in.o when building with
thin archives, so change this to linking a new object file that is
included into the built-in.o.

Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: linux-ia64@vger.kernel.org
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Nicholas Piggin 2017-06-23 23:44:15 +10:00 committed by Masahiro Yamada
parent 8f5ef7c74a
commit 2616037135
1 changed files with 9 additions and 6 deletions
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15
arch/ia64/kernel/Makefile.gate
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@ -1,6 +1,8 @@
# The gate DSO image is built using a special linker script.
targets += gate.so gate-syms.o gate.lds gate.o
targets += gate.so gate.lds gate.o gate-dummy.o
obj-y += gate-syms.o
CPPFLAGS_gate.lds := -P -C -U$(ARCH)
@ -12,13 +14,14 @@ GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1 \
$(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
$(call if_changed,gate)
$(obj)/built-in.o: $(obj)/gate-syms.o
$(obj)/built-in.o: ld_flags += -R $(obj)/gate-syms.o
GATECFLAGS_gate-syms.o = -r
$(obj)/gate-syms.o: $(obj)/gate.lds $(obj)/gate.o FORCE
GATECFLAGS_gate-dummy.o = -r
$(obj)/gate-dummy.o: $(obj)/gate.lds $(obj)/gate.o FORCE
$(call if_changed,gate)
LDFLAGS_gate-syms.o := -r -R
$(obj)/gate-syms.o: $(obj)/gate-dummy.o FORCE
$(call if_changed,ld)
# gate-data.o contains the gate DSO image as data in section .data..gate.
# We must build gate.so before we can assemble it.
# Note: kbuild does not track this dependency due to usage of .incbin