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https://github.com/panpaul/tiny_os
synced 2024-09-20 09:45:19 +08:00
feat: add debug support for cnode
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parent
a58110f013
commit
9f4be01153
@ -1,5 +1,6 @@
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use crate::objects::*;
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use core::cell::Cell;
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use core::fmt::{write, Debug};
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use uapi::cap::ObjectType;
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use utils::addr::PhysAddr;
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use utils::{
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@ -71,3 +72,18 @@ impl From<RawCap> for CapEntry {
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Self::new(value)
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}
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}
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impl Debug for CapEntry {
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fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
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let cap_type = self.cap.get().cap_type;
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match cap_type {
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ObjectType::CNode => write!(f, "{:?}", CNodeCap::try_from(self)),
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ObjectType::Frame => write!(f, "{:?}", FrameCap::try_from(self)),
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ObjectType::Null => write!(f, "{:?}", NullCap::try_from(self)),
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ObjectType::PageTable => write!(f, "{:?}", TableCap::try_from(self)),
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ObjectType::TCB => write!(f, "{:?}", TcbCap::try_from(self)),
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ObjectType::Untyped => write!(f, "{:?}", UntypedCap::try_from(self)),
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_ => write!(f, "UnknownCap"),
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}
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}
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}
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@ -3,11 +3,12 @@ use super::{
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Cap, KernelObject,
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};
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use crate::arch::layout::mmap_phys_to_virt;
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use core::fmt::Debug;
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use uapi::{cap::ObjectType, fault::LookupFailure};
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use utils::addr::{AddressOps, PhysAddr};
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use utils::MASK;
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/// CNodeObject is a array of Capabilities (`RawCap`)
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/// CNodeObject is a array of Capabilities (`CapEntry`)
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/// The size of the array is stored in CNodeCap
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pub type CNodeObject = [CapEntry];
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@ -22,7 +23,7 @@ impl KernelObject for CNodeObject {
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* > args[1]: guard
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*
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* in our implementation, CNodeCap layout:
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* > args[0]: [guard_size, radix]
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* > args[0]: [guard_bits, radix_bits]
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* > args[1]: guard
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* > ptr: cnode_ptr
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* > cap_type: cap_tag
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@ -38,9 +39,9 @@ impl<'a> CNodeCap<'a> {
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const RADIX_MASK: usize = MASK!(Self::RADIX_BITS);
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const RADIX_OFFSET: usize = 0;
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pub fn mint(radix: usize, guard_size: usize, guard: usize, ptr: PhysAddr) -> RawCap {
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let arg0 = ((radix & Self::RADIX_MASK) << Self::RADIX_OFFSET)
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| ((guard_size & Self::GUARD_SIZE_MASK) << Self::GUARD_SIZE_OFFSET);
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pub fn mint(radix_bits: usize, guard_bits: usize, guard: usize, ptr: PhysAddr) -> RawCap {
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let arg0 = ((radix_bits & Self::RADIX_MASK) << Self::RADIX_OFFSET)
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| ((guard_bits & Self::GUARD_SIZE_MASK) << Self::GUARD_SIZE_OFFSET);
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let arg1 = guard;
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let cap: RawCap = RawCap::new(arg0, arg1, ptr, ObjectType::CNode);
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@ -55,11 +56,11 @@ impl<'a> CNodeCap<'a> {
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cap
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}
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fn radix(&self) -> usize {
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fn radix_bits(&self) -> usize {
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(self.cte.cap.get().args[0] >> Self::RADIX_OFFSET) & Self::RADIX_MASK
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}
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fn guard_size(&self) -> usize {
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fn guard_bits(&self) -> usize {
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(self.cte.cap.get().args[0] >> Self::GUARD_SIZE_OFFSET) & Self::GUARD_SIZE_MASK
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}
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@ -72,7 +73,7 @@ impl<'a> CNodeCap<'a> {
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// Return the limited size of the CNode, Rust will help us to check the boundary :)
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// > the kernel then uses the next most-significant `radix` bits of the
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// > capability address as an `index` into the CNode to which the CNode capability refers
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1 << self.radix()
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1 << self.radix_bits()
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}
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pub fn as_object(&self) -> &CNodeObject {
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@ -94,8 +95,8 @@ impl<'a> CNodeCap<'a> {
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let mut slot = self.cte;
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while let Ok(cnode) = CNodeCap::try_from(slot) {
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let radix_bits = cnode.radix();
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let guard_bits = cnode.guard_size();
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let radix_bits = cnode.radix_bits();
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let guard_bits = cnode.guard_bits();
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let level_bits = radix_bits + guard_bits;
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let cap_guard = cnode.guard();
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@ -134,6 +135,18 @@ impl<'a> CNodeCap<'a> {
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}
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}
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impl Debug for CNodeCap<'_> {
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fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
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f.debug_struct("CNodeCap")
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.field("radix_bits", &self.radix_bits())
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.field("guard_bits", &self.guard_bits())
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.field("guard", &self.guard())
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.field("length", &self.length())
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.field("ptr", &self.cte.cap.get().ptr)
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.finish()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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@ -4,6 +4,7 @@ use crate::{
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objects::cap::CapEntry,
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vspace::*,
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};
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use core::fmt::Debug;
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use uapi::{
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cap::ObjectType,
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error::{SysError, SysResult},
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@ -161,3 +162,16 @@ impl<'a> FrameCap<'a> {
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}
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}
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}
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impl Debug for FrameCap<'_> {
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fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
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f.debug_struct("FrameCap")
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.field("ptr", &self.cte.cap.get().ptr)
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.field("size", &self.size())
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.field("attr", &self.attr())
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.field("is_device", &self.is_device())
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.field("mapped_asid", &self.mapped_asid())
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.field("mapped_vaddr", &self.mapped_vaddr())
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.finish()
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}
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}
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@ -32,6 +32,7 @@ pub use cap::{CapEntry, RawCap};
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pub use cnode::{CNodeCap, CNodeObject};
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pub use frame::{FrameCap, FrameObject};
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pub use null::{NullCap, NullObject};
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pub use table::{TableCap, TableObject};
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pub use tcb::{TcbCap, TcbObject};
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pub use untyped::{UntypedCap, UntypedObject};
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@ -1,5 +1,6 @@
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use super::cap::RawCap;
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use super::{Cap, KernelObject};
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use core::fmt::Debug;
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use uapi::cap::ObjectType;
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use utils::addr::PhysAddr;
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@ -15,3 +16,9 @@ impl<'a> NullCap<'a> {
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RawCap::new(0, 0, PhysAddr(0), ObjectType::Null)
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}
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}
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impl Debug for NullCap<'_> {
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fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
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write!(f, "NullCap")
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}
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}
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@ -1,5 +1,6 @@
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use super::{cap::RawCap, Cap, KernelObject};
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use crate::{arch::layout::mmap_phys_to_virt, vspace::*};
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use core::fmt::Debug;
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use uapi::{
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cap::ObjectType,
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error::{SysError, SysResult},
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@ -130,3 +131,9 @@ impl<'a> TableCap<'a> {
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}
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}
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}
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impl Debug for TableCap<'_> {
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fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
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f.debug_struct("TableCap").field("ptr", &self.cte.cap.get().ptr).finish()
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}
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}
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@ -2,6 +2,7 @@ use super::cap::RawCap;
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use super::cnode::{CNodeCap, CNodeObject};
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use super::null::NullCap;
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use super::{Cap, KernelObject};
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use core::fmt::Debug;
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use uapi::cap::ObjectType;
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use uapi::error::{SysError, SysResult};
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use utils::addr::{align_up, PhysAddr};
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@ -131,6 +132,17 @@ impl UntypedCap<'_> {
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}
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}
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impl Debug for UntypedCap<'_> {
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fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
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f.debug_struct("UntypedCap")
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.field("free_offset", &self.free_offset())
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.field("block_bits", &self.block_bits())
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.field("is_device", &self.is_device())
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.field("ptr", &self.cte.cap.get().ptr)
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.finish()
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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@ -42,6 +42,7 @@ pub struct VMFault {
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ip: VirtAddr,
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}
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#[derive(Clone, Copy, Debug)]
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pub enum Fault {
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Null,
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CapFault(CapFault),
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