[Bug libdw/22452] New: Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module

2017-11-17 Thread brueckner at linux dot vnet.ibm.com
Status: UNCONFIRMED Severity: normal Priority: P2 Component: libdw Assignee: unassigned at sourceware dot org Reporter: brueckner at linux dot vnet.ibm.com CC: elfutils-devel at sourceware dot org Target Milestone: --- Created

[Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module

2017-11-17 Thread brueckner at linux dot vnet.ibm.com
https://sourceware.org/bugzilla/show_bug.cgi?id=22452 --- Comment #2 from H. Brueckner --- (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 does

[Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module

2017-11-17 Thread brueckner at linux dot vnet.ibm.com
https://sourceware.org/bugzilla/show_bug.cgi?id=22452 --- Comment #3 from H. Brueckner --- (In reply to Mark Wielaard from comment #1) > 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 sect

[Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module

2017-11-17 Thread brueckner at linux dot vnet.ibm.com
https://sourceware.org/bugzilla/show_bug.cgi?id=22452 --- Comment #6 from H. Brueckner --- Created attachment 10613 --> https://sourceware.org/bugzilla/attachment.cgi?id=10613&action=edit paes_s390_ko-relocs-eu-readelf.txt using eu-readelf -- You are receiving this mail because: You are on t

[Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module

2017-11-17 Thread brueckner at linux dot vnet.ibm.com
https://sourceware.org/bugzilla/show_bug.cgi?id=22452 --- Comment #7 from H. Brueckner --- Created attachment 10614 --> https://sourceware.org/bugzilla/attachment.cgi?id=10614&action=edit paes_s390_ko-relocs-readelf.txt and what binutils readelfs reports for comparision -- You are receiving

[Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module

2017-11-17 Thread brueckner at linux dot vnet.ibm.com
https://sourceware.org/bugzilla/show_bug.cgi?id=22452 --- Comment #8 from H. Brueckner --- (In reply to Mark Wielaard from comment #5) > (In reply to Mark Wielaard from comment #4) > > So, if you could provide the output of eu-readelf --relocs paes_s390.ko (on > > your combined paes_s390.ko conta

[Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module

2017-11-20 Thread brueckner at linux dot vnet.ibm.com
https://sourceware.org/bugzilla/show_bug.cgi?id=22452 --- Comment #10 from H. Brueckner --- (In reply to Mark Wielaard from comment #9) > (In reply to H. Brueckner from comment #8) > > (In reply to Mark Wielaard from comment #5) > > > (In reply to Mark Wielaard from comment #4) > > > > So, if you

[Bug libdw/22452] Failed to obtain CFI data for a OP_call_frame_CFA when looking for func entrypoc in an s390 kernel module

2017-11-20 Thread brueckner at linux dot vnet.ibm.com
https://sourceware.org/bugzilla/show_bug.cgi?id=22452 --- Comment #14 from H. Brueckner --- Hi Mark, Andreas, (In reply to Andreas Krebbel from comment #11) > x86 enables generation of .debug_frame by using: > > KBUILD_CFLAGS += -fno-asynchronous-unwind-tables > > in the kernel Makefile. This