Re: bug in addr2line with -j option

[Nick Clifton]

Hi Amir,

> I just found some small issue where addr2line finds the symbols if it
> searches all sections but when call with '-j .text' (i.e. a single section
> where the symbol in there) it doesn't finds it.
>
> addr2linw without -j
> addr2line -e helloworld 0x123456
> helloworld.c:51
>
> addr2line with -j
> addr2line -e helloworld -j .text 0x123456
> ??:0

This is not a bug, it is a feature.  When the -j option is used to 
restrict the searches to a named section, it also changes the meaning of 
the numeric arguments given to addr2line.  Without -j those arguments 
are absolute addresses.  With -j those arguments are offsets from the 
start of the section.  Hence if you try:

  add2line -e helloworld -j .text 0x456

You will probably get the result you were expecting.

Cheers
  Nick