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72 lines
1.7 KiB
72 lines
1.7 KiB
use alloc::{sync::Arc, vec::Vec};
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use rcore_fs::vfs::*;
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use rcore_fs_sfs::SimpleFileSystem;
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#[cfg(target_arch = "x86_64")]
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use crate::arch::driver::ide;
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pub use self::file::*;
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pub use self::stdio::{STDIN, STDOUT};
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pub use self::pipe::Pipe;
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mod file;
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mod stdio;
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mod device;
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mod pipe;
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/// Hard link user programs
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#[cfg(feature = "link_user")]
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global_asm!(concat!(r#"
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.section .data
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.global _user_img_start
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.global _user_img_end
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_user_img_start:
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.incbin ""#, env!("SFSIMG"), r#""
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_user_img_end:
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"#));
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lazy_static! {
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/// The root of file system
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pub static ref ROOT_INODE: Arc<INode> = {
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#[cfg(not(feature = "link_user"))]
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let device = {
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#[cfg(any(target_arch = "riscv32", target_arch = "riscv64"))]
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{
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crate::drivers::BLK_DRIVERS.read().iter()
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.next().expect("VirtIOBlk not found")
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.clone()
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}
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#[cfg(target_arch = "x86_64")]
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{
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Arc::new(ide::IDE::new(1))
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}
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};
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#[cfg(feature = "link_user")]
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let device = {
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extern {
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fn _user_img_start();
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fn _user_img_end();
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}
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Arc::new(unsafe { device::MemBuf::new(_user_img_start, _user_img_end) })
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};
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let sfs = SimpleFileSystem::open(device).expect("failed to open SFS");
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sfs.root_inode()
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};
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}
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pub trait INodeExt {
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fn read_as_vec(&self) -> Result<Vec<u8>>;
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}
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impl INodeExt for INode {
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fn read_as_vec(&self) -> Result<Vec<u8>> {
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let size = self.metadata()?.size;
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let mut buf = Vec::with_capacity(size);
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unsafe { buf.set_len(size); }
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self.read_at(0, buf.as_mut_slice())?;
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Ok(buf)
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}
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}
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