[Bug ld/21384] New: symbols defined with --dynamic-list missing in output binary

[address@hidden]

https://sourceware.org/bugzilla/show_bug.cgi?id=21384

            Bug ID: 21384
           Summary: symbols defined with --dynamic-list missing in output
                    binary
           Product: binutils
           Version: 2.29 (HEAD)
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: address@hidden
  Target Milestone: ---

Since commit "Always descend into output section statements in
lang_do_assignments"
(https://github.com/bminor/binutils-gdb/commit/f02cb058822459ea29a9fdaa928c2623df435908),
symbols defined with --dynamic-list don't appear as dynamic symbols anymore in
the linked ELF binary.

Stripped down test case:

test.ld (the .dtors section is the relevant part, the rest is copied from the
ld manual):

PHDRS
{
  headers PT_PHDR PHDRS ;
  interp PT_INTERP ;
  text PT_LOAD FILEHDR PHDRS ;
  data PT_LOAD ;
  dynamic PT_DYNAMIC ;
}

SECTIONS
{
  . = SIZEOF_HEADERS;
  .interp : { *(.interp) } :text :interp
  .text : { *(.text) } :text
  .rodata : { *(.rodata) } /* defaults to :text */
  . = . + 0x1000; /* move to a new page in memory */
  .data : { *(.data) } :data
  .dynamic : { *(.dynamic) } :data :dynamic

  .dtors :
  {
    _dtors_start = .;
    _dtors_end = .;
  }
}

----------

test.dl (dynamic list):

{
  _dtors_start;
  _dtors_end;
};

----------

test commands:

$ as /dev/null -o test.o
$ ld -T test.ld --dynamic-list test.dl -o test test.o
$ objdump -T test


output before the mentioned commit:


test:     file format elf64-x86-64

DYNAMIC SYMBOL TABLE:
00000000000012a8 g    D  .dynamic       0000000000000000 _dtors_end
00000000000012a8 g    D  .dynamic       0000000000000000 _dtors_start


output with the current master branch:


test:     file format elf64-x86-64

DYNAMIC SYMBOL TABLE:
no symbols

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