[Patch, microblaze]: Add a small Linux BSP

[Michael Eager]

On 07/25/13 19:43, Edgar E. Iglesias wrote:
> On Fri, Jul 26, 2013 at 04:10:51AM +0200, David Holsgrove wrote:
>>> -----Original Message-----
>>> From: Michael Eager [mailto:eager@eagerm.com]
>>> Sent: Friday, 26 July 2013 11:43 am
>>> To: newlib@sourceware.org; vinschen@redhat.com; David Holsgrove
>>> Subject: Re: [Patch, microblaze]: Add a small Linux BSP
>>>
>>> On 07/23/13 02:11, Corinna Vinschen wrote:
>>>> On Jul 23 17:16, David Holsgrove wrote:
>>>>> On 23 July 2013 17:10, Corinna Vinschen <vinschen@redhat.com> wrote:
>>>>>> On Jul 23 16:25, David Holsgrove wrote:
>>>>>>> From: "David Holsgrove" <...>
>>>>>>>
>>>>>>> libgloss/ChangeLog
>>>>>>>
>>>>>>> 2013-07-23  Edgar E. Iglesias <...>
>>>>>>>
>>>>>>>     * microblaze/Makefile.in: Add LINUX_BSP.
>>>>>>>     * microblaze/elf-gloss-linux.ld: New file.
>>>>>>>     * microblaze/elf-gloss-linux.specs: Likewise.
>>>>>>>     * microblaze/linux-crt0.S: Likewise.
>>>>>>>     * microblaze/linux-inbyte.c: Likewise.
>>>>>>>     * microblaze/linux-outbyte.c: Likewise.
>>>>>>>     * microblaze/linux-syscalls-wrap.c: Likewise.
>>>>>>>     * microblaze/linux-syscalls.S: Likewise.
>>>>>>>     * microblaze/linux-syscalls.h: Likewise.
>>>>>>
>>>>>> Please apply.
>>>>>>
>>>>>
>>>>> Thanks Corinna,
>>>>>
>>>>> I don't have write perms on newlib - can I request them, or can you
>>>>> apply the patch for me?
>>>>
>>>> Everything applied.
>>>
>>> This patch breaks breaks existing mb-gcc compilations.
>>>
>>> Please revert the patch until it can be fixed.
>>>
>> Hi Michael,
>>
>> Can you provide details regarding the breakage?
>>
>> This should be a separate library and not linked in by default - what sort
>> of compilation errors are you seeing?
>
>
> Hi Michael,
>
> Reverting the patch breaks running the GCC + binutils testsuites on QEMU-user
> which has proven to be an extremly valuable test environment for non linux
> targets. It also doesn't break Xilinx internal testing environment on real HW.
> I don't know how you test, but if you can post instructions, we will be happy
> to help with fixing the issues you are seeing.

You can't break builds in FSF-gcc, simply because it doesn't break your internal
environment.

Here is a sample test:
mb-gcc testsuite/gcc.c-torture/execute/strcpy-1.c  -fno-diagnostics-show-caret
-fdiagnostics-color=never  -w  -O3 -fomit-frame-pointer  -mno-xl-soft-mul
-mxl-barrel-shift -mcpu=v6.00.a -Wl,-defsym -Wl,_HEAP_SIZE=0x1000000 -Wl,-defsym 
-Wl,_STACK_SIZE=0x80000 -L microblaze_0/lib -lxil
-TLinkScr.ld  -lm   -o strcpy-1.x3

LinkScr.ld and libxil are from either EDK9.2i or EDK-14.2.

I don't have the failure log at the moment.

-- 
Michael Eager	 eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077