[Bug ld/11304] New: ld --section-start does not work correctly if section is defined in multiple object files

[anpaza at mail dot ru]

If you define some symbols in different object files as being placed in a
section with the same name (with __attribute__((section))), ld does not collect
these objects together correctly if the --section-start option is used.

Instead, one of the shards from the first file on command line is placed at the
correct address, and the rest shards of the same section are appended to either
.text or .data sections.

A simple example is attached. There are two object files a.o and b.o, every one
contains a variable with __attribute__((section(".zzz"))). If they are linked
together with option -Wl,--section-start=.zzz=0x800000, variable a is placed at
the correct address 0x800000, but variable b is placed at the wrong address
0x6008b4 (in the .data section).

-- 
           Summary: ld --section-start does not work correctly if section is
                    defined in multiple object files
           Product: binutils
           Version: 2.19
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: anpaza at mail dot ru
                CC: bug-binutils at gnu dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=11304

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