[Bug default/24249] New: Section offsets not monotonically increasing

["vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=24249

            Bug ID: 24249
           Summary: Section offsets not monotonically increasing
           Product: dwz
           Version: unspecified
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: default
          Assignee: nobody at sourceware dot org
          Reporter: vries at gcc dot gnu.org
                CC: dwz at sourceware dot org
  Target Milestone: ---

For a hello world source file hello.c, using the gold linker does not cause
trouble for dwz:
...
$ gcc hello.c -g -fuse-ld=gold
$ dwz a.out 
...

And adding the .gdb_index section using gdb-add-index also works fine with dwz:
...
$ gcc hello.c -g -fuse-ld=gold
$ gdb-add-index a.out
$ dwz a.out 
...

But, I get this error when using the gold linker to generate the .gdb_index
section:
...
$ gcc hello.c -g -fuse-ld=gold -Wl,--gdb-index
$ dwz a.out 
dwz: Section offsets in a.out not monotonically increasing
...

Inspecting the section offsets around .gdb_index:
...
$ readelf -S a.out | grep '[[]' | egrep -C1  'Offset|\.gdb_index'
  [Nr] Name              Type             Address           Offset
  [ 0]                   NULL             0000000000000000  00000000
--
  [31] .debug_str        PROGBITS         0000000000000000  00001b2f
  [32] .gdb_index        PROGBITS         0000000000000000  000034b0
  [33] .debug_ranges     PROGBITS         0000000000000000  000021f0
...
indeed shows that the offsets are not monotonically increasing.

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