DWARF_GET_FDE_AT_PC(3)                        FreeBSD Library Functions Manual

NAME
     dwarf_get_fde_at_pc - retrieve the FDE descriptor for an address

LIBRARY
     DWARF Access Library (libdwarf, -ldwarf)

SYNOPSIS
     #include <libdwarf.h>

     int
     dwarf_get_fde_at_pc(Dwarf_Fde *fdelist, Dwarf_Addr pc,
         Dwarf_Fde *ret_fde, Dwarf_Addr *lopc, Dwarf_Addr *hipc,
         Dwarf_Error *err);

DESCRIPTION
     Function dwarf_get_fde_at_pc() searches the provided array of DWARF FDE
     descriptors for a descriptor covering a given program counter address.

     Argument fdelist should point to an array of FDE descriptors, as returned
     by the functions dwarf_get_fde_list(3) or dwarf_get_fde_list_eh(3).

     Argument pc should contain the program counter address being looked up.

     Argument ret_fde should point to a location that will hold the returned
     FDE descriptor.

     Argument lopc should point to a location that will be set to the lowest
     address covered by the returned FDE descriptor.

     Argument hipc should point to a location that will be set to the highest
     address covered by the returned FDE descriptor.

     If argument err is not NULL, it will be used to store error information
     in case of an error.

RETURN VALUES
     Function dwarf_get_fde_at_pc() returns DW_DLV_OK when it succeeds.  It
     returns DW_DLV_NO_ENTRY if a FDE descriptor that covers the address
     specified by argument pc is not found.  In case of an error, it returns
     DW_DLV_ERROR and sets the argument err.

ERRORS
     Function dwarf_get_fde_at_pc() can fail with:

     [DW_DLE_ARGUMENT]       One of the arguments fdelist, ret_fde, lopc, or
                             hipc was NULL.

     [DW_DLE_NO_ENTRY]       These was no FDE descriptor covering the address
                             specified by argument pc.

SEE ALSO
     dwarf(3), dwarf_get_cie_of_fde(3), dwarf_get_fde_info_for_all_regs(3),
     dwarf_get_fde_info_for_all_regs3(3), dwarf_get_fde_info_for_cfa_reg3(3),
     dwarf_get_fde_info_for_reg(3), dwarf_get_fde_info_for_reg3(3),
     dwarf_get_fde_instr_bytes(3), dwarf_get_fde_list(3),
     dwarf_get_fde_list_eh(3), dwarf_get_fde_n(3), dwarf_get_fde_range(3)

FreeBSD 13.1-RELEASE-p6          May 22, 2011          FreeBSD 13.1-RELEASE-p6