Messages in this thread Patch in this message |  | | From | sanggil2.kim@samsung ... | Subject | [PATCH] arm64: kernel: Add module symbols _text, _etext. | Date | Thu, 9 Jul 2020 17:23:45 +0900 |
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From: Sanggil Kim <sanggil2.kim@samsung.com>
We have a solution to protect kernel code section(autually from _text to _etext) by not MMU. In order to do this, we have to know the addresses of _text and _etext at runtime.
Signed-off-by: Sanggil Kim <sanggil2.kim@samsung.com> --- arch/arm64/kernel/head.S | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 037421c..09b405e 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -1003,3 +1003,6 @@ SYM_FUNC_START_LOCAL(__primary_switch) adrp x0, __PHYS_OFFSET br x8 SYM_FUNC_END(__primary_switch) + +EXPORT_SYMBOL(_text) +EXPORT_SYMBOL(_etext) -- 2.7.4
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