[Bug binutils/22789] New: addr2line can't determine function names in mips binaries compiled with -gline-tables-only

[address@hidden]

https://sourceware.org/bugzilla/show_bug.cgi?id=22789

            Bug ID: 22789
           Summary: addr2line can't determine function names in mips
                    binaries compiled with -gline-tables-only
           Product: binutils
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: address@hidden
  Target Milestone: ---

Created attachment 10785
  --> https://sourceware.org/bugzilla/attachment.cgi?id=10785&action=edit
Example files

In the attachment are simple binaries compiled on mips64el. The 3 examples are
compiledusing llvm with -g, -gline-tables-only and without additional flags.
When addr2line is used to fetch function names it only fails on the file
compiled with -gline-tables-only:

$ addr2line 120000a40 -f -e simple_test
main
??:?
$ addr2line 120000a40 -f -e simple_g_test
main
/home/compiler-qa/llvm/simple_gline_test.c:2
$ addr2line 120000a40 -f -e simple_gline_test
??
/home/compiler-qa/llvm/simple_gline_test.c:2



The llvm-symbolizer doesn't have the same issue:

$ echo simple_test 0x120000a40 | llvm-symbolizer
main
??:0:0

$ echo simple_g_test 0x120000a40 | llvm-symbolizer
main
/home/compiler-qa/llvm/simple_gline_test.c:2:0

$ echo simple_gline_test 0x120000a40 | llvm-symbolizer
main
/home/compiler-qa/llvm/simple_gline_test.c:2:0



There is no difference with big-endian and mips32 binaries.

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