michaelkuc6/blog_os
1
0
Fork 0
mirror of https://github.com/phil-opp/blog_os.git synced 2025-12-17 14:57:49 +00:00
Code Issues Projects Releases Wiki Activity

Use explicit extern "C"

Browse Source
This commit is contained in:
Philipp Oppermann
2018-04-02 17:31:04 +02:00
parent 549dfd362b
commit 5d0503e250
4 changed files with 20 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
blog/content/second-edition/posts/02-minimal-rust-kernel/index.md
View File

@@ -203,14 +203,14 @@ Compiling for our new target will use Linux conventions (I'm not quite sure why,
#[lang = "panic_fmt"] // define a function that should be called on panic
#[no_mangle]
pub extern fn rust_begin_panic(_msg: core::fmt::Arguments,
pub extern "C" fn rust_begin_panic(_msg: core::fmt::Arguments,
_file: &'static str, _line: u32, _column: u32) -> !
{
loop {}
}
#[no_mangle] // don't mangle the name of this function
pub extern fn _start() -> ! {
pub extern "C" fn _start() -> ! {
// this function is the entry point, since the linker looks for a function
// named `_start` by default
loop {}
@@ -277,7 +277,7 @@ The implementation looks like this:
static HELLO: &[u8] = b"Hello World!";
#[no_mangle]
pub extern fn _start() -> ! {
pub extern "C" fn _start() -> ! {
let vga_buffer = 0xb8000 as *const u8 as *mut u8;
for (i, &byte) in HELLO.iter().enumerate() {