[PATCH] aarch64: Optimized memset for falkor

[Szabolcs Nagy]

On 20/11/17 12:57, Siddhesh Poyarekar wrote:
> On Monday 20 November 2017 06:11 PM, Szabolcs Nagy wrote:
>> On 14/11/17 09:26, Siddhesh Poyarekar wrote:
>>> +libc_ifunc (__libc_memset, (IS_FALKOR (midr) && zva_size == 64
>>> +			    ? __memset_falkor
>>> +			    : __memset_generic));
>>
>> the falkor code is probably slightly better for
>> most of the zva==64 targets too, but this way
>> is probably the least risky and the logic can
>> be changed later if necessary.
>>
>> i don't see a way to fix falkor with smaller
>> impact on other cores.
>>
>> so this is OK to commit.
> 
> Thanks, pushed.
> 

this broke --disable-multi-arch build
string/rtld-memset.os is missing then
i don't yet know the cause

aarch64-none-linux-gnu-gcc   -nostdlib -nostartfiles -shared -o B/elf/ld.so.new		\
	  -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs 	\
	  B/elf/librtld.os -Wl,--version-script=B/ld.map		\
	  -Wl,-soname=ld-linux-aarch64.so.1			\
	  -Wl,-defsym=_begin=0
B/elf/librtld.os: In function `_dl_map_segments':
S/elf/./dl-map-segments.h:131: undefined reference to `memset'
...
collect2: error: ld returned 1 exit status
make[2]: *** [B/elf/ld.so] Error 1