Commit 3b92fa74 authored by Nick Desaulniers's avatar Nick Desaulniers Committed by Will Deacon

arm64: link with -z norelro regardless of CONFIG_RELOCATABLE

With CONFIG_EXPERT=y, CONFIG_KASAN=y, CONFIG_RANDOMIZE_BASE=n,
CONFIG_RELOCATABLE=n, we observe the following failure when trying to
link the kernel image with LD=ld.lld:

error: section: .exit.data is not contiguous with other relro sections

ld.lld defaults to -z relro while ld.bfd defaults to -z norelro. This
was previously fixed, but only for CONFIG_RELOCATABLE=y.

Fixes: 3bbd3db8 ("arm64: relocatable: fix inconsistencies in linker script and options")
Signed-off-by: default avatarNick Desaulniers <ndesaulniers@google.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201016175339.2429280-1-ndesaulniers@google.comSigned-off-by: default avatarWill Deacon <will@kernel.org>
parent 7bdf468a
...@@ -10,13 +10,13 @@ ...@@ -10,13 +10,13 @@
# #
# Copyright (C) 1995-2001 by Russell King # Copyright (C) 1995-2001 by Russell King
LDFLAGS_vmlinux :=--no-undefined -X LDFLAGS_vmlinux :=--no-undefined -X -z norelro
ifeq ($(CONFIG_RELOCATABLE), y) ifeq ($(CONFIG_RELOCATABLE), y)
# Pass --no-apply-dynamic-relocs to restore pre-binutils-2.27 behaviour # Pass --no-apply-dynamic-relocs to restore pre-binutils-2.27 behaviour
# for relative relocs, since this leads to better Image compression # for relative relocs, since this leads to better Image compression
# with the relocation offsets always being zero. # with the relocation offsets always being zero.
LDFLAGS_vmlinux += -shared -Bsymbolic -z notext -z norelro \ LDFLAGS_vmlinux += -shared -Bsymbolic -z notext \
$(call ld-option, --no-apply-dynamic-relocs) $(call ld-option, --no-apply-dynamic-relocs)
endif endif
......
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