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Message-ID: <20250124082030.764417-1-liuyuntao12@huawei.com> Date: Fri, 24 Jan 2025 08:20:30 +0000 From: Yuntao Liu <liuyuntao12@...wei.com> To: <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org> CC: <linux@...linux.org.uk>, <ruanjinjie@...wei.com>, <kees@...nel.org>, <masahiroy@...nel.org>, <ardb@...nel.org>, <liuyuntao12@...wei.com> Subject: [PATCH -next] arm32/boot/compressed: Force hidden visibility for all symbol references Eliminate all GOT entries in the decompressor binary, by forcing hidden visibility for all symbol references, which informs the compiler that such references will be resolved at link time without the need for allocating GOT entries. Include linux/hidden.h in Makefile, like x86, for the hidden visibility attribute. Signed-off-by: Yuntao Liu <liuyuntao12@...wei.com> --- arch/arm/boot/compressed/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index 945b5975fce2..d8a17760ad29 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -93,6 +93,9 @@ targets := vmlinux vmlinux.lds piggy_data piggy.o \ head.o $(OBJS) KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING +ifneq ($(CONFIG_LD_IS_LLD),y) +KBUILD_CFLAGS += -include $(srctree)/include/linux/hidden.h +endif ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \ -I$(srctree)/scripts/dtc/libfdt -fno-stack-protector \ -- 2.34.1
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