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UNW_APPLY_REG_STATE(3)       Programming Library        UNW_APPLY_REG_STATE(3)


NAME

       unw_apply_reg_state -- apply a register state update to a cursor


SYNOPSIS

       #include <libunwind.h>

       int unw_apply_reg_state(unw_cursor_t *cp, void *reg_states_data);


DESCRIPTION

       The unw_apply_reg_state() routine updates the register values of a
       cursor according to the instructions in reg_states_data, which have
       been obtained by calling unw_reg_states_iterate.


RETURN VALUE

       On successful completion, unw_apply_reg_state() returns 0.  Otherwise
       the negative value of one of the error-codes below is returned.


THREAD AND SIGNAL SAFETY

       unw_apply_reg_state() is thread-safe. If cursor cp is in the local
       address-space, this routine is also safe to use from a signal handler.


ERRORS

       UNW_EUNSPEC
               An unspecified error occurred.

       UNW_ENOINFO
               Libunwind was unable to locate unwind-info for the procedure.

       UNW_EBADVERSION
               The unwind-info for the procedure has version or format that is
              not understood by libunwind.

       In addition, unw_apply_reg_state() may return any error returned by the
       access_mem() call-back (see unw_create_addr_space(3)).


SEE ALSO

       libunwind(3), unw_reg_states_iterate(3)


AUTHOR

       David Mosberger-Tang
       Email: dmosberger@gmail.com
       WWW: http://www.nongnu.org/libunwind/.

Programming Library             16 August 2017          UNW_APPLY_REG_STATE(3)

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