On Thu, 2014-08-28 at 22:12 +0200, Jan Kratochvil wrote: > Formerly shared libraries did not get resolved properly: > #2 0x00007fc4d86c56d6 > #3 0x0000000000400938 main > > Fixed elfutils produce: > #2 0x00007f61094876d6 libfunc > #3 0x0000000000400938 main > > Signed-off-by: Jan Kratochvil <jan.kratoch...@redhat.com>
Nice, thanks. I would add the why to the commit message. "For deleted shared library files the offsets to the symbol table were calculated wrongly from the phdrs because the main_bias wasn't taken into account." +2014-08-28 Jan Kratochvil <jan.kratoch...@redhat.com> > + > + * dwfl_module_getdwarf.c (find_offsets): Add parameter main_bias, use > + it. > + (find_dynsym): Pass the new parameter main_bias. > Looks good. +# Older Linux (such as 2.6.32) required PTRACE_ATTACH to read /proc/PID/mem. > +sleep 60 & p=$!; sleep 0.1 > +addr=0x$(cat /proc/$p/maps|sed -n 's#^\([0-9a-f]*\)-[0-9a-f]* r[^ ]* 00* > .*/sleep$#\1#p'|head -n1) > +supported=$[$(dd if=/proc/$p/mem bs=1 skip=$[$addr] count=1|wc -c)] > +kill -9 $p > +if [ $supported -eq 0 ]; then > + exit 77 > +fi I don't think this check is needed. eu-stack needs to be attached to get the register values and dwfl_linux_proc_find_elf makes sure the process is attached before calling elf_from_remote_memory. Cheers, Mark
