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std::arch::global_asm!(
r#"
.text
.global rust_plus_one_global_asm
.type rust_plus_one_global_asm, @function
rust_plus_one_global_asm:
movl (%rdi), %eax
inc %eax
retq
"#,
options(att_syntax)
);
extern "C" {
fn cc_plus_one_c(arg: &u32) -> u32;
fn cc_plus_one_c_asm(arg: &u32) -> u32;
fn cc_plus_one_cxx(arg: &u32) -> u32;
fn cc_plus_one_cxx_asm(arg: &u32) -> u32;
fn cc_plus_one_asm(arg: &u32) -> u32;
fn cmake_plus_one_c(arg: &u32) -> u32;
fn cmake_plus_one_c_asm(arg: &u32) -> u32;
fn cmake_plus_one_cxx(arg: &u32) -> u32;
fn cmake_plus_one_cxx_asm(arg: &u32) -> u32;
fn cmake_plus_one_c_global_asm(arg: &u32) -> u32;
fn cmake_plus_one_cxx_global_asm(arg: &u32) -> u32;
fn cmake_plus_one_asm(arg: &u32) -> u32;
fn rust_plus_one_global_asm(arg: &u32) -> u32;
}
fn main() {
let value: u32 = 41;
let question = "Answer to the Ultimate Question of Life, the Universe, and Everything:";
unsafe {
println!("{}: {}!", question, rust_plus_one_global_asm(&value));
println!("{}: {}!", question, cc_plus_one_c(&value));
println!("{}: {}!", question, cc_plus_one_c_asm(&value));
println!("{}: {}!", question, cc_plus_one_cxx(&value));
println!("{}: {}!", question, cc_plus_one_cxx_asm(&value));
println!("{}: {}!", question, cc_plus_one_asm(&value));
println!("{}: {}!", question, cmake_plus_one_c(&value));
println!("{}: {}!", question, cmake_plus_one_c_asm(&value));
println!("{}: {}!", question, cmake_plus_one_cxx(&value));
println!("{}: {}!", question, cmake_plus_one_cxx_asm(&value));
println!("{}: {}!", question, cmake_plus_one_c_global_asm(&value));
println!("{}: {}!", question, cmake_plus_one_cxx_global_asm(&value));
println!("{}: {}!", question, cmake_plus_one_asm(&value));
}
}
|
