[Bug ld/33344] New: cannot strip(1) .eh_frame_hdr and .eh_frame sections anymore

[rokuyama.rk at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=33344

            Bug ID: 33344
           Summary: cannot strip(1) .eh_frame_hdr and .eh_frame sections
                    anymore
           Product: binutils
           Version: 2.45
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: rokuyama.rk at gmail dot com
  Target Milestone: ---

As a fix for Bug #32341, .note.* sections are moved after .rodata section. For
NetBSD, e.g., segment of .rodata becomes:

```
% cc hello.c -o hello
% readelf -l hello
...
  LOAD           0x0000000000002000 0x0000000000402000 0x0000000000402000
                 0x00000000000001d0 0x00000000000001d0  R      0x1000
...
   04     .rodata .eh_frame_hdr .eh_frame .note.netbsd.ident .note.netbsd.pax
...
```

Here, .eh_frame_hdr and .eh_frame sections lie between .rodata and
.note.netbsd.* sections. As a result, strip(1) cannot remove these sections:

```
% strip -R .eh_frame_hdr -R .eh_frame hello -o hello.stripped
% readelf -l hello.stripped
...
  LOAD           0x0000000000002000 0x0000000000402000 0x0000000000402000
                 0x00000000000001d0 0x00000000000001d0  R      0x1000
...
   04     .rodata .note.netbsd.ident .note.netbsd.pax
...
```

You can see the size of segment is not changed at all. This results in
regression of stripped-binary sizes for NetBSD.

-- 
You are receiving this mail because:
You are on the CC list for the bug.