[PATCH 3/4] Consolidate pread/pread64 implementations

[Adhemerval Zanella]

On 07-01-2016 17:52, Mike Frysinger wrote:
> On 07 Jan 2016 15:18, Adhemerval Zanella wrote:
>> From: Adhemerval Zanella <adhemerval.zanella@linaro.com>
>>
>> This patch consolidates all the pread/pread64 implementation for Linux
>> in only one (sysdeps/unix/sysv/linux/pread.c).  It also removes the
>> syscall from the auto-generation using assembly macros.
>>
>> For pread{64} offset argument placement the new SYSCALL_LL{64} macro
>> is used.  For pread ports that do not define __NR_pread will use
>> __NR_pread64 and for pread64 ports that dot define __NR_pread64 will
>> use __NR_pread for the syscall.
> 
> just to make sure i'm reading this correctly, in the past 64-bit ports
> would have a pread symbol and pread64 would be an alias to it.  but with
> this patch, 64-bit ports now have two symbols w/identical code ?
> -mike
> 

Indeed it is something I was thinking and I was not sure how to
fix it while not breaking the existing ABI.  Maybe only building
the p{read,write}.c if not WORDSIZE64 is define and creating an
alias on p{read,write}64.c. What do you think?