pthread locking code - C vs. ASM

[Gilles Carry]

Mike Frysinger wrote:
> On Monday 21 January 2008, Gilles Carry wrote:
> 
>>Is asm code supposed to do exactly the same as C code?
> 
> 
> of course ... things would be broken otherwise
> 
> 
>>I recently had a case when I wanted to modify pthread_cond_signal.c and it
>>did not compile because of unexisting syscall macros.
> 
> 
> you probably didnt include the right headers

Actually, pthread_cond_signal.c uses the macro lll_futex_wake_unlock
which is not defined for i386.

> 
>>Should C code be the reference? Should asm be modified only when we are
>>sure C is ok? It is a problem when people change asm code without updating
>>the underlying C files.
> 
> 
> you should modify whatever your target platform uses
> 
> then again, i'd wonder why you were mucking around the libc code in the first 
> place ...

I'm not sure I get the meaning of your last remark.

-gilles