[Bug binutils/24493] New: objcopy produces .gnu_debuglink section with wrong flags on MS-Windows

[eliz at gnu dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=24493

            Bug ID: 24493
           Summary: objcopy produces .gnu_debuglink section with wrong
                    flags on MS-Windows
           Product: binutils
           Version: 2.32
            Status: NEW
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: eliz at gnu dot org
  Target Milestone: ---

Bug 14527, https://sourceware.org/bugzilla/show_bug.cgi?id=14527, is against
MinGW GDB issuing a warning about lack of .gnu_debuglink section in the
separate debug files.  However, it looks like the problem is actually in
Binutils, because the .gnu_debuglink section generated by objcopy on MS-Windows
has the wrong flags:

   D:\usr\eli>objdump -h -j .gnu_debuglink hello.exe

   hello.exe:     file format pei-i386

   Sections:
   Idx Name          Size      VMA       LMA       File off  Algn
     8 .gnu_debuglink 00000200  00416000  00416000  00004c00  2**2
                     CONTENTS, ALLOC, LOAD, READONLY, DATA

By contrast, on GNU/Linux this section has only the CONTENTS and READONLY
flags.  Removing the other flags, like this:

 D:\usr\eli>objcopy --set-section-flags .gnu_debuglink=contents,readonly
hello.exe

makes the warning issued by GDB go away, while still allowing debugging with
full symbols.

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