[Bug ld/6590] New: Linker-generated TOC16_DS relocations are misplaced

[yaari at il dot ibm dot com]

Following a recent change for handling --emit-relocs switch the Linker started
producing static relocations for code generated by the linker itself.

When generating R_PPC64_TOC16_DS relocations, which affects the low-order 16-bit
of the instruction, the linker places them instead on the instruction boundary.

In the example below the symbol-less relocations are the linker-generated ones
and are placed improperly on instruction boundaries (10000a9c, 10000aa0, ...),
while those with attached symbols are compiler-generated and are correctly
placed on the 2-low-order bytes of the respective instruction (10000ada, 
10000adc)


0000000010000a9c  000000000000003f R_PPC64_TOC16_DS                            
   000000001001dab8
0000000010000aa0  000000000000003f R_PPC64_TOC16_DS                            
   000000001001dab0
0000000010000aac  000000000000003f R_PPC64_TOC16_DS                            
   000000001001da00
0000000010000ab4  000000000000003f R_PPC64_TOC16_DS                            
   000000001001da10
0000000010000ab8  000000000000003f R_PPC64_TOC16_DS                            
   000000001001da08
0000000010000ada  000000180000003f R_PPC64_TOC16_DS       000000001001d870 .got 
+ 8
0000000010000adc  0000006d0000000a R_PPC64_REL24          0000000000000000
__libc_start_main@@GLIBC_2.3 + 0
0000000010000b0a  000000180000003f R_PPC64_TOC16_DS       000000001001d870 .got 
+ 10
0000000010000b14  0000004e0000000a R_PPC64_REL24          0000000000000000
__gmon_start__ + 0
0000000010000b2e  000000180000003f R_PPC64_TOC16_DS       000000001001d870 .got 
+ 18

-- 
           Summary: Linker-generated TOC16_DS relocations are misplaced
           Product: binutils
           Version: 2.18
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
        AssignedTo: unassigned at sources dot redhat dot com
        ReportedBy: yaari at il dot ibm dot com
                CC: bug-binutils at gnu dot org
GCC target triplet: ppc64


http://sourceware.org/bugzilla/show_bug.cgi?id=6590

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