From: Shaoying Xu shaoyi@amazon.com
stable inclusion from linux-4.19.179 commit 79e73552f4fea6feedd5d05e6d882095b4925ba3
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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 Signed-off-by: Yang Yingliang yangyingliang@huawei.com Signed-off-by: Cheng Jian cj.chengjian@huawei.com --- arch/arm64/kernel/module.lds | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/kernel/module.lds b/arch/arm64/kernel/module.lds index 22e36a21c113..09a0eef71d12 100644 --- 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) } }