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Re: [PATCH] PR ld/16322: ld fails to generate GNU_RELRO segment

[catching up on mail]

"H.J. Lu" <> writes:
> On Thu, Jan 9, 2014 at 11:01 AM, Hans-Peter Nilsson
> <> wrote:
>>> On Thu, Jan 9, 2014 at 10:51 AM, Hans-Peter Nilsson
>>> <> wrote:
>>> > Also, ia64-linux will fail.
>> And the latest change also made mipsisa32r2el-unknown-linux-gnu
>> fail (i.e. likely any mips-linux) where it had clean results
>> before:
>> Running /tmp/hpautotest-binutils/bsrc/src/ld/testsuite/ld-elf/binutils.exp ...
>> FAIL: objcopy -shared -z relro (tbss1)
>> FAIL: objcopy -shared -z relro (tbss2)
>> FAIL: objcopy -shared -z relro (tbss3)
> I believe those are mips bugs.  Mips linker also generates
> NULL segment:
> Program Headers:
>   Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
>   REGINFO        0x000114 0x00000114 0x00000114 0x00018 0x00018 R   0x4
>   LOAD           0x000000 0x00000000 0x00000000 0x00330 0x00330 R E 0x10000
>   LOAD           0x000c00 0x00010c00 0x00010c00 0x00408 0x00408 RW  0x10000
>   DYNAMIC        0x00012c 0x0000012c 0x0000012c 0x00098 0x00098 RWE 0x4
>   TLS            0x000c00 0x00010c00 0x00010c00 0x00001 0x00800 R   0x400
>   GNU_RELRO      0x000c00 0x00010c00 0x00010c00 0x00400 0x00400 R   0x1
>   NULL           0x000000 0x00000000 0x00000000 0x00000 0x00000     0x4
> before my change.

The NULL segment is deliberate: it's added for use by the prelinker.


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