The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From f5c6d0fcf90ce07ee0d686d465b19b247ebd5ed7 Mon Sep 17 00:00:00 2001

From: Shaoying Xu shaoyi@amazon.com Date: Tue, 16 Feb 2021 18:32:34 +0000 Subject: [PATCH] arm64 module: set plt* section addresses to 0x0

These plt* and .text.ftrace_trampoline sections specified for arm64 have non-zero addressses. Non-zero section addresses in a relocatable ELF would confuse GDB when it tries to compute the section offsets and it ends up printing wrong symbol addresses. Therefore, set them to zero, which mirrors the change in commit 5d8591bc0fba ("module: set ksymtab/kcrctab* section addresses to 0x0").

Reported-by: Frank van der Linden fllinden@amazon.com Signed-off-by: Shaoying Xu shaoyi@amazon.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20210216183234.GA23876@amazon.com Signed-off-by: Will Deacon will@kernel.org

diff --git a/arch/arm64/include/asm/module.lds.h b/arch/arm64/include/asm/module.lds.h index 691f15af788e..810045628c66 100644 --- a/arch/arm64/include/asm/module.lds.h +++ b/arch/arm64/include/asm/module.lds.h @@ -1,7 +1,7 @@ #ifdef CONFIG_ARM64_MODULE_PLTS SECTIONS { - .plt (NOLOAD) : { BYTE(0) } - .init.plt (NOLOAD) : { BYTE(0) } - .text.ftrace_trampoline (NOLOAD) : { BYTE(0) } + .plt 0 (NOLOAD) : { BYTE(0) } + .init.plt 0 (NOLOAD) : { BYTE(0) } + .text.ftrace_trampoline 0 (NOLOAD) : { BYTE(0) } } #endif