Re: [Valgrind-developers] C11 aligned_alloc support

[Paul F. <pj...@wa...>]

On second thoughts, this doesn't work so well.
 
aligned_alloc and memalign are aliases:
 
paulf> nm /lib64/libc.so.6 | grep align | grep 0000000000081920 
0000000000081920 W aligned_alloc 
0000000000081920 t __GI___libc_memalign 
0000000000081920 T __libc_memalign 
0000000000081920 W memalign 
0000000000081920 t __memalign


So I just get ignored redirects
 
==9157== WARNING: new redirection conflicts with existing -- ignoring it 
--9157--     old: 0x05762920 (memalign            ) R-> (1011.0) 0x04c2e718 memalign 
--9157--     new: 0x05762920 (memalign            ) R-> (1017.0) 0x04c2e6c6 aligned_alloc

 
This limits the usefulness to either a libc with separate implementations of memalign/aligned_alloc or a replacement function.
 
I'll update the bugzille with this analysis and a patch, but I'm not sure if it is worth going further. Maybe just update the docs?
 
A+
Paul