This issue has been discussed in a few threads that I
have found on google but there was no conclusive
answer given for the phenomenon.
example1.c
void function(int a, int b, int c) {
char buffer1[5];
char buffer2[10];
}
void main() {
function(1,2,3);
}
When you issue the "gcc -S -o example1.s example1.c"
command and view the function prolog you see that the
compiler reserves 40 bytes for these two arrays.
subl $40, %esp
To me the expected behavior should be subl $24, %esp
or in other words reserving 24 bytes of stack space.
Why the discrepancy? Thanks
Josh
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