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The get_stack_trace syscall generates a stack trace using the kernel debugging facilities and copies the resulting return address array to the preallocated buffer from userland. It is only possible to get a stack trace of the current thread. The lookup_symbol syscall can be used to look up the symbol and image name corresponding to an address. It can be used to resolve symbols from a stack trace generated by the get_stack_trace syscall. Only symbols of the current team can be looked up. Note that this uses the symbol lookup of the kernel debugger which does not support lookup of all symbols (static functions are missing for example). This is meant to be used in situations where more elaborate stack trace generation, like done in the userland debugging helpers, is not possible due to constraints.