I think you may not get this right: this is from GCC man : If the target supports a BSS section, GCC by default puts variables that are initialized to zero into BSS. This can save space in the resulting code.
But that's exactly what I'm saying. The kernel-hacking guides say that all static (internal-linkage) variables are placed in the bss section. The gcc docs say that all variables initialized to zero are placed in the bss section.
What I'm asking is, wouldn't that mean that a static variable initialized to zero would be placed in the bss section, since it meets both those conditions?
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