in optee-utee-build/src/code_generator.rs [209:220]
fn write_ta_heap(&mut self) {
let no_mangle_attribute = self.edition.no_mangle_attribute_codes();
let bss_session_attribute = self.edition.link_section_attribute_codes(".bss");
self.code.extend(quote! {
#no_mangle_attribute
#bss_session_attribute
pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
#no_mangle_attribute
pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
})
}