[Bug gold/18847] New: Gold: Address of section moves backward when aligned.

[johan.karlsson at enea dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18847

            Bug ID: 18847
           Summary: Gold: Address of section moves backward when aligned.
           Product: binutils
           Version: 2.25
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gold
          Assignee: ccoutant at gmail dot com
          Reporter: johan.karlsson at enea dot com
                CC: ian at airs dot com
  Target Milestone: ---

Created attachment 8532
  --> https://sourceware.org/bugzilla/attachment.cgi?id=8532&action=edit
section_pointer_increase.patch

When using a linker script that added alignment for the output section I got
the following error:
ld.gold: error: address of section '.bss' moves backward from 0x10200b0 to
0x101ecc0

Simplified the linker script looked like this:
 .data ALIGN(0x10000) :
 {
  *(.data)
  *(.data.*)
  *(.gnu.linkonce.d.*)
  SORT(CONSTRUCTORS)
 } > mem :ph_ram
 .bss :
 {
  *(.bss)
  *(.bss.*)
  *(COMMON)
  *(.gnu.linkonce.b.*)
 } > mem :ph_ram

I'm attaching a patch that fixes the problem. The way I saw it was that when
the alignment was added a specific address was assigned to that section and
there by the output section pointer was not increased with its size.

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