https://sourceware.org/bugzilla/show_bug.cgi?id=22452
--- Comment #2 from H. Brueckner <brueckner at linux dot vnet.ibm.com> --- (In reply to Mark Wielaard from comment #1) > I haven't investigated fully yet. > But I did take a quick look at the paes_s390.ko.debug file. > A few quick comments as early feedback. > > Note that it doesn't contain .debug_frame but only a .eh_frame section. > Other architectures force .debug_frame for kernel modules to store the CFI. > > The .eh_frame is a loaded section, which means it won't go into the .debug > file. So you would need to load the CFI from the main ELF .ko. Initially, I have tried on my own kernel build (including debug_info) and ran the test program against the .ko file. (Because I am not permitted to share binary code and, please, do not ask why, it is difficult to provide you an alternative. If you have access to a s390 or use a cross-compiler it would be fine but that typically requires some effort on your side. In any case, if you require some output in text form, please let me know. > One tricky issue here is the fact that kernel modules are ET_REL files > that still need relocations applied (you can see there is also a > .rela.eh_frame section). libdwfl can do simple relocations, but might not > know about all relocation types used in an .eh_frame section (I haven't > checked yet). Ok. -- You are receiving this mail because: You are on the CC list for the bug.
