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/// 生成 ADRP + ADD 指令组合，用于加载符号地址
/// ADRP 计算页面基地址，ADD 加上页内偏移
macro_rules! asm_sym_addr {
($reg:ident, $symbol:expr) => {
concat!(
"adrp ",
stringify!($reg),
", ",
$symbol,
"\n",
"add ",
stringify!($reg),
", ",
stringify!($reg),
", :lo12:",
$symbol
)
};
}
macro_rules! sym_addr {
($sym:expr) => {{
#[allow(unused_unsafe)]
unsafe{
let out: usize;
core::arch::asm!(
"adrp {r}, {s}",
"add {r}, {r}, :lo12:{s}",
r = out(reg) out,
s = sym $sym,
);
out
}
}};
}
macro_rules! ext_sym_addr {
($sym:expr) => {
{
#[allow(unused_unsafe)]
unsafe{
let out: usize;
core::arch::asm!(
concat!("adrp {r}, ", stringify!($sym)),
concat!("add {r}, {r}, :lo12:", stringify!($sym)),
r = out(reg) out,
);
out
}
}
};
}