Action name: SetNameTypeDummy names are automatically generated by IDA. They are used to denote subroutines, program locations and data.
Dummy names have various prefixes depending on the item type and value:
sub_ instruction, subroutine start locret_ 'return' instruction loc_ instruction off_ data, contains offset value seg_ data, contains segment address value asc_ data, string literal byte_ data, byte word_ data, 16-bit dword_ data, 32-bit qword_ data, 64-bit byte3_ data, 3 bytes xmmword_ data, 128-bit ymmword_ data, 256-bit packreal_ data, packed real flt_ floating point data, 32-bit dbl_ floating point data, 64-bit tbyte_ floating point data, 80-bit stru_ structure custdata_ custom data type algn_ alignment directive unk_ unexplored byteYou can change representation of dummy names. IDA supports several types of dummy names:
0 loc_0_1234 segment base address relative to program base address & offset from the segment base 1 loc_1000_1234 segment base address & offset from the segment base 2 loc_dseg_1234 segment name & offset from the segment base 3 loc_0_11234 segment relative to base address & full address 4 loc_1000_11234 segment base address & full address 5 loc_dseg_11234 segment name & full address 6 loc_12 full address 7 loc_0012 full address (at least 4 digits) 8 loc_00000012 full address (at least 8 digits) 9 dseg_1234 the same as 2, but without data type specifier 10 loc_1 enumerated names (loc_1,loc_2,loc_3...)If you have selected names type 10 (enumerated names), you may renumber them using a checkbox. The process is relatively fast, surprisingly.
The best representation for MS DOS programs is #0, for 16-bit processors - #7, and for 32-bit processors - #8. You can change dummy names type any time you want.
You can also set up types of names included in the names list. IDA knows about the following types of names:
- normal names - public names - weak public or extern names - autogenerated (meaningful) names. - dummy (meaningless) names.Dummy names may be public or weak, but they never appear in the list of names. You can specify the type of a name when you create or modify it.
You can also set maximal length of new names. Old names will not be affected by this parameter.