On Fri, May 29, 2015 at 10:47 AM, Alan Modra wrote:
> Two fixes for -fsplit-stack on powerpc64. I goofed on the block
> scanned for uses of r12. ENTRY_BLOCK_PTR_FOR_FN is the fake one. The
> next block is the first one having insns.
>
> The second change emits an error if people use a global re
Two fixes for -fsplit-stack on powerpc64. I goofed on the block
scanned for uses of r12. ENTRY_BLOCK_PTR_FOR_FN is the fake one. The
next block is the first one having insns.
The second change emits an error if people use a global register
variable r29 with -fsplit-stack. For example:
register
Older assemblers don't understand .abiversion, so I'm committing the
following as obvious to fix a problem Michael Meissner found when
building gcc for powerpc64-linux.
PR libgcc/66225
* config/rs6000/morestack.S: Remove ".abiversion 1".
Index: libgcc/config/rs6000/morestack.S
===
Anytime go code built with gccgo is linked against libraries
built with gcc (without split stack) there could be mixing of split stack
and non split stack code. I think that will be a common case.
My understanding is that if you don't use the gold linker in these
cases, it is possible that the a
On Wed, May 20, 2015 at 8:13 AM, Lynn A. Boger
wrote:
>
>
> On 05/19/2015 07:52 PM, Alan Modra wrote:
>>
>> On Tue, May 19, 2015 at 07:40:15AM -0500, Lynn A. Boger wrote:
>>>
>>> Questions on the use of the options for split stack:
>>>
>>> - The way this is implemented, split stack is generated if
On 05/19/2015 07:52 PM, Alan Modra wrote:
On Tue, May 19, 2015 at 07:40:15AM -0500, Lynn A. Boger wrote:
Questions on the use of the options for split stack:
- The way this is implemented, split stack is generated if the
target platform supports split stack, on ppc64/ppc64le as well
as on x86
On Tue, May 19, 2015 at 07:40:15AM -0500, Lynn A. Boger wrote:
> Questions on the use of the options for split stack:
>
> - The way this is implemented, split stack is generated if the
> target platform supports split stack, on ppc64/ppc64le as well
> as on x86, and the use of -fno-split-stack doe
On Mon, May 18, 2015 at 12:24:51PM +0930, Alan Modra wrote:
> +error ("%<-fsplit-stack%> currently only supported on PowerPC64
> GNU/Linux with glibc-2.18 or later");
I forgot to comment on this. 2.19 is actually when __private_ss
appeared in the ppc tcbhead_t, but I misread the commit date
