DWARF_ADD_FRAME_FDE(3) | Library Functions Manual | DWARF_ADD_FRAME_FDE(3) |
Dwarf_Unsigned
dwarf_add_frame_fde(Dwarf_P_Debug dbg, Dwarf_P_Fde fde, Dwarf_P_Die die, Dwarf_Unsigned cie, Dwarf_Addr virt_addr, Dwarf_Unsigned code_len, Dwarf_Unsigned symbol_index, Dwarf_Error *err);
Dwarf_Unsigned
dwarf_add_frame_fde_b(Dwarf_P_Debug dbg, Dwarf_P_Fde fde, Dwarf_P_Die die, Dwarf_Unsigned cie, Dwarf_Addr virt_addr, Dwarf_Unsigned code_len, Dwarf_Unsigned symbol_index, Dwarf_Unsigned end_symbol_index, Dwarf_Addr offset_from_end_sym, Dwarf_Error *err);
Argument dbg should reference a DWARF producer instance allocated using dwarf_producer_init(3) or dwarf_producer_init_b(3).
Argument fde should reference a frame descriptor allocated using dwarf_new_fde(3).
Argument die is ignored by this implementation of the DWARF Access Library (libdwarf, -ldwarf).
Argument cie specifies the index of call frame common information entry for the frame descriptor. Valid indices are those returned by the function dwarf_add_frame_cie(3).
Argument symbol_index specifies the ELF symbol index of the first symbol to be used for relocation.
The meaning of the arguments virt_addr, code_len and offset_from_end_sym depend on the value of argument end_symbol_index:
Application code can retrieve the relocation entries for the symbol pair by calling function dwarf_get_relocation_info(3). The relocation entry for the first symbol will have type dwarf_drt_first_of_length_pair and the relocation entry for the second symbol will have type dwarf_drt_second_of_length_pair.
If argument err is not NULL, it will be used to store error information in case of an error.
Function dwarf_add_frame_fde() is similar to function dwarf_add_frame_fde_b() except that it supports only one relocation symbol.
September 26, 2011 | NetBSD 7.2 |