6.12-stable review patch. If anyone has any objections, please let me know.
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From: Masahiro Yamada masahiroy@kernel.org
[ Upstream commit 340fd66c856651d8c1d29f392dd26ad674d2db0e ]
Commit be2881824ae9 ("arm64/build: Assert for unwanted sections") introduced an assertion to ensure that the .data.rel.ro section does not exist.
However, this check does not work when CONFIG_LTO_CLANG is enabled, because .data.rel.ro matches the .data.[0-9a-zA-Z_]* pattern in the DATA_MAIN macro.
Move the ASSERT() above the RW_DATA() line.
Fixes: be2881824ae9 ("arm64/build: Assert for unwanted sections") Signed-off-by: Masahiro Yamada masahiroy@kernel.org Acked-by: Will Deacon will@kernel.org Link: https://lore.kernel.org/r/20241106161843.189927-1-masahiroy@kernel.org Signed-off-by: Catalin Marinas catalin.marinas@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/kernel/vmlinux.lds.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S index 58d89d997d050..f84c71f04d9ea 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -287,6 +287,9 @@ SECTIONS __initdata_end = .; __init_end = .;
+ .data.rel.ro : { *(.data.rel.ro) } + ASSERT(SIZEOF(.data.rel.ro) == 0, "Unexpected RELRO detected!") + _data = .; _sdata = .; RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN) @@ -343,9 +346,6 @@ SECTIONS *(.plt) *(.plt.*) *(.iplt) *(.igot .igot.plt) } ASSERT(SIZEOF(.plt) == 0, "Unexpected run-time procedure linkages detected!") - - .data.rel.ro : { *(.data.rel.ro) } - ASSERT(SIZEOF(.data.rel.ro) == 0, "Unexpected RELRO detected!") }
#include "image-vars.h"