From: Shaoying Xu shaoyi@amazon.com
commit f5c6d0fcf90ce07ee0d686d465b19b247ebd5ed7 upstream.
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 [shaoyi@amazon.com: made same changes in arch/arm64/kernel/module.lds for 5.4] Signed-off-by: Shaoying Xu shaoyi@amazon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm64/include/asm/module.lds.h was renamed from arch/arm64/kernel/module.lds by commit 596b0474d3d9 ("kbuild: preprocess module linker script") since v5.10. Therefore, made same changes in arch/arm64/kernel/module.lds for 5.4.
arch/arm64/kernel/module.lds | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm64/kernel/module.lds +++ b/arch/arm64/kernel/module.lds @@ -1,5 +1,5 @@ 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) } }