22 Jun
2022
22 Jun
'22
3:25 a.m.
Hello Daniel,
On Mon, 20 Jun 2022 at 19:09, Daniel-Constantin Mierla <miconda(a)gmail.com>
wrote:
Hello,
iirc, the alignment is to sizeof(void*), which is 8.
The qm allocator naturally returns 16-byte aligned memory. However the
definition
of DBG_SR_MEMORY(from 'make cfg' with all the defaults.) causes 16 to drop
to 8.
Is this intentional?
Regards
S-P
//qm naturally aligns on 16 bytes without DBG_QM_MALLOC!
#ifdef DBG_QM_MALLOC
#if defined(__CPU_sparc64) || defined(__CPU_sparc)
/* tricky, on sun in 32 bits mode long long must be 64 bits aligned
* but long can be 32 bits aligned => malloc should return long long
* aligned memory */
#define ROUNDTO sizeof(long long)
#else
#define ROUNDTO sizeof(void*) /* minimum possible ROUNDTO
* ->heavy debugging*/
#endif
#else /* DBG_QM_MALLOC */
#define ROUNDTO 16UL /* size we round to, must be = 2^n
and also
*
sizeof(qm_frag)+sizeof(qm_frag_end)
* must be multiple
of ROUNDTO!
*/
#endif