.comm vs .largecomm

David Livshin david.livshin@dalsoft.com
Mon Jul 13 06:13:00 GMT 2009


Hi,

What is the difference between .comm and .largecomm ( in gas for 
x86_64). May it be assumed that ( the address of a ) symbol defined by 
.comm is < 2G, e.g. after

    .comm foo,100,4,4
    movabsq $foo,%rax


'rax' has 0's in the upper 33 bits.


Thank you in advance.

Regards,

David


-- 
David Livshin


http://www.dalsoft.com



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