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Revert "FROMLIST: arm64: reserve x18 from general allocation with SCS"

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Shadow call stack is now merged upstream for 5.9, so revert the patches
cherry-picked into android-mainline in preparation for pulling the upstream
version instead.

This reverts commit cb28bf9230.

Signed-off-by: Will Deacon <willdeacon@google.com>
Change-Id: I216e215977ed21e51c228614bb287f1f4ff5efd8
This commit is contained in:
Will Deacon
2020-06-09 12:55:35 +01:00
parent 8cc585eb32
commit e8c6c2fb4b
1 changed files with 0 additions and 4 deletions
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4
arch/arm64/Makefile
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@@ -79,10 +79,6 @@ branch-prot-flags-$(CONFIG_CC_HAS_BRANCH_PROT_PAC_RET) := -mbranch-protection=pa
branch-prot-flags-$(CONFIG_AS_HAS_PAC) += -Wa,-march=armv8.3-a
endif
ifeq ($(CONFIG_SHADOW_CALL_STACK), y)
KBUILD_CFLAGS += -ffixed-x18
endif
KBUILD_CFLAGS += $(branch-prot-flags-y)
ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)