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59 lines
1.8 KiB
Rust
59 lines
1.8 KiB
Rust
// Copyright 2015 Philipp Oppermann
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#![feature(no_std, lang_items)]
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#![feature(const_fn, unique, core_str_ext)]
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#![no_std]
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extern crate rlibc;
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extern crate spin;
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extern crate multiboot2;
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#[macro_use]
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mod vga_buffer;
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#[no_mangle]
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pub extern fn rust_main(multiboot_information_address: usize) {
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// ATTENTION: we have a very small stack and no guard page
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vga_buffer::clear_screen();
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println!("Hello World{}", "!");
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let boot_info = unsafe{ multiboot2::load(multiboot_information_address) };
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println!("memory areas:");
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for area in boot_info.memory_map_tag().unwrap().memory_areas() {
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println!(" start: 0x{:x}, length: 0x{:x}", area.base_addr, area.length);
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}
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println!("kernel sections:");
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for section in boot_info.elf_sections_tag().unwrap().sections() {
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println!(" addr: 0x{:x}, size: 0x{:x}, flags: 0x{:x}",
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section.addr, section.size, section.flags);
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}
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loop{}
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}
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#[cfg(not(test))]
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#[lang = "eh_personality"]
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extern fn eh_personality() {}
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#[cfg(not(test))]
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#[lang = "panic_fmt"]
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extern fn panic_fmt(fmt: core::fmt::Arguments, file: &str, line: u32) -> ! {
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println!("\n\nPANIC in {} at line {}:", file, line);
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println!(" {}", fmt);
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loop{}
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}
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