mirror of https://gitee.com/openkylin/linux.git
c736533075
Currently, when unwinding the call stack, we validate the frame pointer of each frame against frame.sp, whose value is not clearly defined, and which makes it more difficult to link stack frames together across different stacks. It is far better to simply check whether the frame pointer itself points into a valid stack. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Will Deacon <will.deacon@arm.com> |
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