https://sourceware.org/bugzilla/show_bug.cgi?id=27805
Bug ID: 27805
Summary: libdwfl: Unable to extract source line information for
RISC-V binary
Product: elfutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libdw
Assignee: unassigned at sourceware dot org
Reporter: n2knqf5ogu at bsogq dot anonbox.net
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
Created attachment 13416
--> https://sourceware.org/bugzilla/attachment.cgi?id=13416&action=edit
RV32IMC binary to reproduce the outlined issue
For the attached RV32IMC (i.e. RISC-V) binary, libdwfl from elfutlis 0.183 is
incapable of extracting source line information from provided DWARF debugging
information. This can be easily reproduced by comparing the behavior of
elfutils's addr2line with binutils's addr2line program.
With binutils:
$ addr2line --version
GNU addr2line (GNU Binutils) 2.35.2
$ addr2line -e /tmp/elfutils-srcline-bug.elf 20400058
/home/john/src/RIOT/examples/hello-world/main.c:26
With elfutils:
$ addr2line --version
addr2line (elfutils) 0.183
$ addr2line -e /tmp/elfutils-srcline-bug.elf 20400058
??:0
Briefly debugging this, it seems to me that dwfl_module_getsrc seems to return
NULL and error out with DWARF_E_INVALID_OFFSET for this given binary.
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