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What is NDX in readelf?
Ndx = The section number the symbol is in. ABS means absolute: not adjusted to any section address’s relocation.
What is readelf in C?
readelf displays information about one or more ELF format object files. This program performs a similar function to objdump but it goes into more detail and it exists independently of the BFD library, so if there is a bug in BFD then readelf will not be affected.
How do you find symbols?
Hold the “Alt” key and type the proper ASCII code on the numeric keypad. When you release the “Alt” key, you should see your desired symbol on the screen.
What are the meanings of the columns of the symbol table displayed by readelf?
Vis = Symbols can be default, protected, hidden or internal. Understanding ELF using readelf and objdump. I think Ndx field shows the section number where that symbol is defined. Do a readelf -a , and find out which section the address corresponds to for a given symbol.
How to display the version number of readelf?
Display a histogram of bucket list lengths when displaying the contents of the symbol tables. Display the version number of readelf. Don’t break output lines to fit into 80 columns. By default readelf breaks section header and segment listing lines for 64-bit ELF files, so that they fit into 80 columns.
When to use the hash table in readelf?
When displaying symbols, this option makes readelf use the symbol hash tables in the file’s dynamic section, rather than the symbol table sections. When displaying relocations, this option makes readelf display the dynamic relocations rather than the static relocations. Displays the contents of the indicated section as a hexadecimal bytes.
How does readelf display information about ELF files?
When displaying symbols, this option makes readelf use the symbol hash tables in the file’s dynamic section, rather than the symbol table sections. When displaying relocations, this option makes readelf display the dynamic relocations rather than the static relocations.