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Remove frame extraction

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This commit is contained in:
Stephen Marz 2020-03-13 19:38:06 -04:00
parent c3e7451997
commit 4487295308
1 changed files with 6 additions and 2 deletions
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8
risc_v/ch9/src/process.rs
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@ -21,7 +21,8 @@ const STACK_PAGES: usize = 2;
// regardless of where it is on the kernel heap. // regardless of where it is on the kernel heap.
const STACK_ADDR: usize = 0x1_0000_0000; const STACK_ADDR: usize = 0x1_0000_0000;
// All processes will have a defined starting point in virtual memory. // All processes will have a defined starting point in virtual memory.
const PROCESS_STARTING_ADDR: usize = 0x8000_0000; // We will use this later when we load processes from disk.
// const PROCESS_STARTING_ADDR: usize = 0x2000_0000;
// Here, we store a process list. It uses the global allocator // Here, we store a process list. It uses the global allocator
// that we made before and its job is to store all processes. // that we made before and its job is to store all processes.
@ -102,7 +103,7 @@ pub fn init() -> usize {
// the address, and then move it right back in. // the address, and then move it right back in.
let pl = PROCESS_LIST.take().unwrap(); let pl = PROCESS_LIST.take().unwrap();
let p = pl.front().unwrap().frame; let p = pl.front().unwrap().frame;
let frame = p as *const TrapFrame as usize; // let frame = p as *const TrapFrame as usize;
// println!("Init's frame is at 0x{:08x}", frame); // println!("Init's frame is at 0x{:08x}", frame);
// Put the process list back in the global. // Put the process list back in the global.
PROCESS_LIST.replace(pl); PROCESS_LIST.replace(pl);
@ -255,6 +256,9 @@ impl Drop for Process {
// The private data in a process contains information // The private data in a process contains information
// that is relevant to where we are, including the path // that is relevant to where we are, including the path
// and open file descriptors. // and open file descriptors.
// We will allow dead code for now until we have a need for the
// private process data. This is essentially our resource control block (RCB).
#[allow(dead_code)]
pub struct ProcessData { pub struct ProcessData {
cwd_path: [u8; 128], cwd_path: [u8; 128],
} }