Re: [drlvm][gc] TLS access from GC: a proposal to refactor the code

[Mikhail Fursov]

On 10/25/06, Xiao-Feng Li <[EMAIL PROTECTED]> wrote:

Hi, Mikhail, how about this:

In GC thread init:
gc_tls_data_ptr = malloc_gc_tls_data(sizeof(GC_Thread_Info) );
gc_tls_key = thread_create_tls_key();
thread_set_tls_data( gc_tls_key, gc_tls_data_ptr);

To fast alloc:

gc_tls_data_ptr = thread_get_tls_data( gc_tls_key);
free = *(gc_tls_data_ptr + offset_of_free_in_gc_tls);

Can't this work? Sounds like I missed something?

Xiao-Feng,
Yes we talking about the same functionality.
The problem with your example is that TM has no such an API :)

The only method we have is 'hythread_tls_alloc (hythread_tls_key_t*
handle);' and it allocates sizeof(void*) bytes in TLS struct.
And the method we need is:
'hythread_tls_alloc (hythread_tls_key_t* handle, size_t bytes);' or
'hythread_tls_alloc (hythread_tls_key_t* handle, size_t numSlots);'  where
numSlots for GC is  ~ sizeof(GC_Thread_Info)/sizeof (void*)


--
Mikhail Fursov