arm64 & x86: add basic arch_stack_walk() implementation
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Currently it supports `esf` based unwinding only. The backtraces only prints the return address now, `fp` is no longer printed, updated stack_unwind testcase accordingly Signed-off-by: Yong Cong Sin <ycsin@meta.com>
Currently it supports `esf` based unwinding only. The backtraces only prints the return address now, `frame->args` is no longer printed on 32-bit CPU. Signed-off-by: Yong Cong Sin <ycsin@meta.com>
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Add a basic
arch_stack_walk()implementation that supports unwinding througharch_esfonly