On Mon, 2014-11-10 at 16:55 +0800, 21310171 wrote: > Complie a simple case , such as hello.c, with the "-g" parameter to > compiler. And use readelf -S tools to analyze the sections of the output elf > file, we see .eh_frame and .debug_frame section. > .eh_frame and .debug_frame both are something to do with frame stack. Use > readelf -Wwf to analyse these two sections . What i find is that their format > and contents are rather similar with each other. > I refer to the dwarf debugging standards, only to see introduction to > .debug_frame section, no descriptions about .eh_frame at all. Also, i tried > to get information from web, but got little. > Also, i found .eh_frame has allocte attribute, it will be loaded ? > It will be so nice, if someone can tell me something about .eh_frame, better > to introduce in comparison with .debug_frame section, Thank you guys!
DWARF only describes the .debug_frame format. The .eh_frame format is based on that, but subtly different. The following describes the .eh_frame (and .eh_frame_hdr) sections: http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html It uses the following DWARF extensions: http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/dwarfext.html _______________________________________________ Dwarf-Discuss mailing list Dwarf-Discuss@lists.dwarfstd.org http://lists.dwarfstd.org/listinfo.cgi/dwarf-discuss-dwarfstd.org
