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Re: [PATCH] PR ld/16322: ld fails to generate GNU_RELRO segment
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: Hans-Peter Nilsson <hans-peter dot nilsson at axis dot com>
- Cc: Binutils <binutils at sourceware dot org>, Nick Clifton <nickc at redhat dot com>
- Date: Thu, 9 Jan 2014 11:23:51 -0800
- Subject: Re: [PATCH] PR ld/16322: ld fails to generate GNU_RELRO segment
- Authentication-results: sourceware.org; auth=none
- References: <CAMe9rOqOcpCR3=E694mSoc+3=jOXs9gf8=Bt5QuJzYDK8U2Cvw at mail dot gmail dot com> <201401091901 dot s09J15Ef025879 at ignucius dot se dot axis dot com>
On Thu, Jan 9, 2014 at 11:01 AM, Hans-Peter Nilsson
<hans-peter.nilsson@axis.com> wrote:
>> On Thu, Jan 9, 2014 at 10:51 AM, Hans-Peter Nilsson
>> <hans-peter.nilsson@axis.com> 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.
--
H.J.