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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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