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Fix clippy.sh script and fix a number of clippy warnings

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This commit is contained in:
Jeremy Soller
2019-10-06 11:04:06 -06:00
parent a57ea6a72b
commit 63e2a835e0
40 changed files with 196 additions and 543 deletions
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416
Cargo.lock generated
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1
Cargo.toml
View File

@@ -11,7 +11,6 @@ crate-type = ["staticlib"]
[dependencies]
bitflags = "1.0.3"
clippy = { version = "0.0.209", optional = true }
linked_list_allocator = "0.6.2"
raw-cpuid = "4.0.0"
redox_syscall = { path = "syscall" }

20
clippy.sh
View File

@@ -2,16 +2,12 @@
set -e
# https://github.com/rust-lang/rust-clippy/issues/4579
export RUSTUP_TOOLCHAIN="nightly-2019-07-19"
rustup update "${RUSTUP_TOOLCHAIN}"
rustup component add clippy --toolchain "${RUSTUP_TOOLCHAIN}"
rustup component add rust-src --toolchain "${RUSTUP_TOOLCHAIN}"
export RUST_TARGET_PATH="${PWD}/targets"
xargo rustc --lib --release \
--target x86_64-unknown-none \
--features clippy \
-- \
-C soft-float -C debuginfo=2 \
-W anonymous-parameters \
-W trivial-numeric-casts \
-W unused-extern-crates \
-W unused-import-braces \
-W unused-qualifications \
-W variant-size-differences \
-Z no-trans -Z extra-plugins=clippy
export RUSTFLAGS="-C soft-float -C debuginfo=2"
xargo clippy --lib --release --target x86_64-unknown-none

4
src/acpi/dmar/mod.rs
View File

@@ -172,8 +172,8 @@ impl Iterator for DmarIter {
type Item = DmarEntry;
fn next(&mut self) -> Option<Self::Item> {
if self.i + 4 <= self.sdt.data_len() {
let entry_type = unsafe { *((self.sdt.data_address() as *const u8).offset(self.i as isize) as *const u16) };
let entry_len = unsafe { *((self.sdt.data_address() as *const u8).offset(self.i as isize + 2) as *const u16) } as usize;
let entry_type = unsafe { *((self.sdt.data_address() as *const u8).add(self.i) as *const u16) };
let entry_len = unsafe { *((self.sdt.data_address() as *const u8).add(self.i + 2) as *const u16) } as usize;
if self.i + entry_len <= self.sdt.data_len() {
let item = match entry_type {

4
src/acpi/madt.rs
View File

@@ -226,8 +226,8 @@ impl Iterator for MadtIter {
type Item = MadtEntry;
fn next(&mut self) -> Option<Self::Item> {
if self.i + 1 < self.sdt.data_len() {
let entry_type = unsafe { *(self.sdt.data_address() as *const u8).offset(self.i as isize) };
let entry_len = unsafe { *(self.sdt.data_address() as *const u8).offset(self.i as isize + 1) } as usize;
let entry_type = unsafe { *(self.sdt.data_address() as *const u8).add(self.i) };
let entry_len = unsafe { *(self.sdt.data_address() as *const u8).add(self.i + 1) } as usize;
if self.i + entry_len <= self.sdt.data_len() {
let item = match entry_type {

2
src/acpi/rsdt.rs
View File

@@ -35,7 +35,7 @@ impl Iterator for RsdtIter {
type Item = usize;
fn next(&mut self) -> Option<Self::Item> {
if self.i < self.sdt.data_len()/mem::size_of::<u32>() {
let item = unsafe { *(self.sdt.data_address() as *const u32).offset(self.i as isize) };
let item = unsafe { *(self.sdt.data_address() as *const u32).add(self.i) };
self.i += 1;
Some(item as usize)
} else {

2
src/acpi/xsdt.rs
View File

@@ -35,7 +35,7 @@ impl Iterator for XsdtIter {
type Item = usize;
fn next(&mut self) -> Option<Self::Item> {
if self.i < self.sdt.data_len()/mem::size_of::<u64>() {
let item = unsafe { *(self.sdt.data_address() as *const u64).offset(self.i as isize) };
let item = unsafe { *(self.sdt.data_address() as *const u64).add(self.i) };
self.i += 1;
Some(item as usize)
} else {

4
src/allocator/linked_list.rs
View File

@@ -1,5 +1,5 @@
use core::alloc::{AllocErr, GlobalAlloc, Layout};
use core::ptr::NonNull;
use core::ptr::{self, NonNull};
use linked_list_allocator::Heap;
use spin::Mutex;
@@ -40,7 +40,7 @@ unsafe impl GlobalAlloc for Allocator {
panic!("__rust_allocate: heap not initialized");
}
},
other => return other.ok().map_or(0 as *mut u8, |allocation| allocation.as_ptr()),
other => return other.ok().map_or(ptr::null_mut(), |allocation| allocation.as_ptr()),
}
}
}

12
src/arch/x86_64/device/cpu.rs
View File

@@ -8,19 +8,19 @@ pub fn cpu_info<W: Write>(w: &mut W) -> Result {
let cpuid = CpuId::new();
if let Some(info) = cpuid.get_vendor_info() {
write!(w, "Vendor: {}\n", info.as_string())?;
writeln!(w, "Vendor: {}", info.as_string())?;
}
if let Some(info) = cpuid.get_extended_function_info() {
if let Some(brand) = info.processor_brand_string() {
write!(w, "Model: {}\n", brand)?;
writeln!(w, "Model: {}", brand)?;
}
}
if let Some(info) = cpuid.get_processor_frequency_info() {
write!(w, "CPU Base MHz: {}\n", info.processor_base_frequency())?;
write!(w, "CPU Max MHz: {}\n", info.processor_max_frequency())?;
write!(w, "Bus MHz: {}\n", info.bus_frequency())?;
writeln!(w, "CPU Base MHz: {}", info.processor_base_frequency())?;
writeln!(w, "CPU Max MHz: {}", info.processor_max_frequency())?;
writeln!(w, "Bus MHz: {}", info.bus_frequency())?;
}
write!(w, "Features:")?;
@@ -120,7 +120,7 @@ pub fn cpu_info<W: Write>(w: &mut W) -> Result {
if info.has_mpx() { write!(w, " mpx")? };
}
write!(w, "\n")?;
writeln!(w)?;
Ok(())
}

2
src/arch/x86_64/gdt.rs
View File

@@ -188,7 +188,7 @@ impl GdtEntry {
limitl: limit as u16,
offsetl: offset as u16,
offsetm: (offset >> 16) as u8,
access: access,
access,
flags_limith: flags & 0xF0 | ((limit >> 16) as u8) & 0x0F,
offseth: (offset >> 24) as u8
}

2
src/arch/x86_64/graphical_debug/display.rs
View File

@@ -108,7 +108,7 @@ impl Display {
let size = self.offscreen.len() - offset;
unsafe {
let to = self.offscreen.as_mut_ptr();
let from = to.offset(offset as isize);
let from = to.add(offset);
fast_copy(to as *mut u8, from as *const u8, size * 4);
}
}

6
src/arch/x86_64/paging/mapper.rs
View File

@@ -134,7 +134,7 @@ impl Mapper {
self.map_to(page, frame, flags)
}
fn unmap_inner(&mut self, page: &Page, keep_parents: bool) -> Frame {
fn unmap_inner(&mut self, page: Page, keep_parents: bool) -> Frame {
let frame;
let p4 = self.p4_mut();
@@ -203,14 +203,14 @@ impl Mapper {
/// Unmap a page
pub fn unmap(&mut self, page: Page) -> MapperFlush {
let frame = self.unmap_inner(&page, false);
let frame = self.unmap_inner(page, false);
deallocate_frames(frame, 1);
MapperFlush::new(page)
}
/// Unmap a page, return frame without free
pub fn unmap_return(&mut self, page: Page, keep_parents: bool) -> (MapperFlush, Frame) {
let frame = self.unmap_inner(&page, keep_parents);
let frame = self.unmap_inner(page, keep_parents);
(MapperFlush::new(page), frame)
}

15
src/arch/x86_64/paging/mod.rs
View File

@@ -393,23 +393,23 @@ pub struct Page {
}
impl Page {
pub fn start_address(&self) -> VirtualAddress {
pub fn start_address(self) -> VirtualAddress {
VirtualAddress::new(self.number * PAGE_SIZE)
}
pub fn p4_index(&self) -> usize {
pub fn p4_index(self) -> usize {
(self.number >> 27) & 0o777
}
pub fn p3_index(&self) -> usize {
pub fn p3_index(self) -> usize {
(self.number >> 18) & 0o777
}
pub fn p2_index(&self) -> usize {
pub fn p2_index(self) -> usize {
(self.number >> 9) & 0o777
}
pub fn p1_index(&self) -> usize {
pub fn p1_index(self) -> usize {
self.number & 0o777
}
@@ -420,10 +420,7 @@ impl Page {
}
pub fn range_inclusive(start: Page, end: Page) -> PageIter {
PageIter {
start: start,
end: end,
}
PageIter { start, end }
}
pub fn next(self) -> Page {

2
src/arch/x86_64/paging/table.rs
View File

@@ -9,7 +9,7 @@ use crate::memory::allocate_frames;
use super::entry::{EntryFlags, Entry};
use super::ENTRY_COUNT;
pub const P4: *mut Table<Level4> = (crate::RECURSIVE_PAGE_OFFSET | 0x7ffffff000) as *mut _;
pub const P4: *mut Table<Level4> = (crate::RECURSIVE_PAGE_OFFSET | 0x7f_ffff_f000) as *mut _;
pub trait TableLevel {}

4
src/arch/x86_64/paging/temporary_page.rs
View File

@@ -13,9 +13,7 @@ pub struct TemporaryPage {
impl TemporaryPage {
pub fn new(page: Page) -> TemporaryPage {
TemporaryPage {
page: page,
}
TemporaryPage { page }
}
pub fn start_address (&self) -> VirtualAddress {

2
src/common/unique.rs
View File

@@ -22,7 +22,7 @@ impl<T> Unique<T> {
pub unsafe fn new_unchecked(ptr: *mut T) -> Self {
Self(NonNull::new_unchecked(ptr))
}
pub fn as_ptr(&self) -> *mut T {
pub fn as_ptr(self) -> *mut T {
self.0.as_ptr()
}
}

24
src/context/arch/x86_64.rs
View File

@@ -76,18 +76,20 @@ impl Context {
if !self.loadable {
return false;
}
let old = unsafe { &*(self.fx as *const FloatRegisters) };
new._reserved = old._reserved;
let old_st = new.st_space;
let mut new_st = new.st_space;
for (new_st, old_st) in new_st.iter_mut().zip(&old_st) {
*new_st &= !ST_RESERVED;
*new_st |= old_st & ST_RESERVED;
}
new.st_space = new_st;
// Make sure we don't use `old` from now on
drop(old);
{
let old = unsafe { &*(self.fx as *const FloatRegisters) };
new._reserved = old._reserved;
let old_st = new.st_space;
let mut new_st = new.st_space;
for (new_st, old_st) in new_st.iter_mut().zip(&old_st) {
*new_st &= !ST_RESERVED;
*new_st |= old_st & ST_RESERVED;
}
new.st_space = new_st;
// Make sure we don't use `old` from now on
}
unsafe {
*(self.fx as *mut FloatRegisters) = new;

6
src/context/context.rs
View File

@@ -183,7 +183,7 @@ impl Context {
let syscall_tail = unsafe { Box::from_raw(crate::ALLOCATOR.alloc(Layout::from_size_align_unchecked(PAGE_SIZE, PAGE_SIZE)) as *mut [u8; PAGE_SIZE]) };
Context {
id: id,
id,
pgid: id,
ppid: ContextId::from(0),
ruid: 0,
@@ -198,8 +198,8 @@ impl Context {
running: false,
cpu_id: None,
syscall: None,
syscall_head: syscall_head,
syscall_tail: syscall_tail,
syscall_head,
syscall_tail,
vfork: false,
waitpid: Arc::new(WaitMap::new()),
pending: VecDeque::new(),

2
src/context/list.rs
View File

@@ -83,7 +83,7 @@ impl ContextList {
let offset = stack.len() - mem::size_of::<usize>();
unsafe {
let offset = stack.len() - mem::size_of::<usize>();
let func_ptr = stack.as_mut_ptr().offset(offset as isize);
let func_ptr = stack.as_mut_ptr().add(offset);
*(func_ptr as *mut usize) = func as usize;
}
context.arch.set_page_table(unsafe { paging::ActivePageTable::new().address() });

6
src/context/memory.rs
View File

@@ -312,9 +312,9 @@ pub struct Memory {
impl Memory {
pub fn new(start: VirtualAddress, size: usize, flags: EntryFlags, clear: bool) -> Self {
let mut memory = Memory {
start: start,
size: size,
flags: flags
start,
size,
flags,
};
memory.map(clear);

26
src/context/switch.rs
View File

@@ -99,7 +99,7 @@ pub unsafe fn switch() -> bool {
let mut context = context_lock.write();
if runnable(&mut context, cpu_id) {
to_ptr = context.deref_mut() as *mut Context;
if (&mut *to_ptr).ksig.is_none() {
if (*to_ptr).ksig.is_none() {
to_sig = context.pending.pop_front();
}
break;
@@ -113,7 +113,7 @@ pub unsafe fn switch() -> bool {
let mut context = context_lock.write();
if runnable(&mut context, cpu_id) {
to_ptr = context.deref_mut() as *mut Context;
if (&mut *to_ptr).ksig.is_none() {
if (*to_ptr).ksig.is_none() {
to_sig = context.pending.pop_front();
}
break;
@@ -125,13 +125,13 @@ pub unsafe fn switch() -> bool {
// Switch process states, TSS stack pointer, and store new context ID
if to_ptr as usize != 0 {
(&mut *from_ptr).running = false;
(&mut *to_ptr).running = true;
(*from_ptr).running = false;
(*to_ptr).running = true;
if let Some(ref stack) = (*to_ptr).kstack {
gdt::set_tss_stack(stack.as_ptr() as usize + stack.len());
}
gdt::set_tcb((&mut *to_ptr).id.into());
CONTEXT_ID.store((&mut *to_ptr).id, Ordering::SeqCst);
gdt::set_tcb((*to_ptr).id.into());
CONTEXT_ID.store((*to_ptr).id, Ordering::SeqCst);
}
// Unset global lock before switch, as arch is only usable by the current CPU at this time
@@ -146,16 +146,16 @@ pub unsafe fn switch() -> bool {
// Signal was found, run signal handler
//TODO: Allow nested signals
assert!((&mut *to_ptr).ksig.is_none());
assert!((*to_ptr).ksig.is_none());
let arch = (&mut *to_ptr).arch.clone();
let kfx = (&mut *to_ptr).kfx.clone();
let kstack = (&mut *to_ptr).kstack.clone();
(&mut *to_ptr).ksig = Some((arch, kfx, kstack, sig));
(&mut *to_ptr).arch.signal_stack(signal_handler, sig);
let arch = (*to_ptr).arch.clone();
let kfx = (*to_ptr).kfx.clone();
let kstack = (*to_ptr).kstack.clone();
(*to_ptr).ksig = Some((arch, kfx, kstack, sig));
(*to_ptr).arch.signal_stack(signal_handler, sig);
}
(&mut *from_ptr).arch.switch_to(&mut (&mut *to_ptr).arch);
(*from_ptr).arch.switch_to(&mut (*to_ptr).arch);
true
}

6
src/context/timeout.rs
View File

@@ -32,9 +32,9 @@ fn registry() -> MutexGuard<'static, Registry> {
pub fn register(scheme_id: SchemeId, event_id: usize, clock: usize, time: TimeSpec) {
let mut registry = registry();
registry.push_back(Timeout {
scheme_id: scheme_id,
event_id: event_id,
clock: clock,
scheme_id,
event_id,
clock,
time: (time.tv_sec as u64, time.tv_nsec as u64)
});
}

4
src/elf.rs
View File

@@ -27,7 +27,7 @@ impl<'a> Elf<'a> {
Err(format!("Elf: Invalid architecture: {:?} != {:?}", data.get(header::EI_CLASS), header::ELFCLASS))
} else {
Ok(Elf {
data: data,
data,
header: unsafe { &*(data.as_ptr() as usize as *const header::Header) }
})
}
@@ -61,7 +61,7 @@ impl<'a> Elf<'a> {
if let Some(symtab) = symtab_opt {
Some(ElfSymbols {
data: self.data,
symtab: symtab,
symtab,
i: 0
})
} else {

2
src/event.rs
View File

@@ -20,7 +20,7 @@ pub struct EventQueue {
impl EventQueue {
pub fn new(id: EventQueueId) -> EventQueue {
EventQueue {
id: id,
id,
queue: WaitQueue::new()
}
}

32
src/lib.rs
View File

@@ -3,16 +3,30 @@
//! The Redox OS Kernel is a microkernel that supports `x86_64` systems and
//! provides Unix-like syscalls for primarily Rust applications
//#![deny(warnings)]
#![cfg_attr(feature = "clippy", allow(if_same_then_else))]
#![cfg_attr(feature = "clippy", allow(inline_always))]
#![cfg_attr(feature = "clippy", allow(many_single_char_names))]
#![cfg_attr(feature = "clippy", allow(module_inception))]
#![cfg_attr(feature = "clippy", allow(new_without_default))]
#![cfg_attr(feature = "clippy", allow(not_unsafe_ptr_arg_deref))]
#![cfg_attr(feature = "clippy", allow(or_fun_call))]
#![cfg_attr(feature = "clippy", allow(too_many_arguments))]
// Useful for adding comments about different branches
#![allow(clippy::if_same_then_else)]
// Useful in the syscall function
#![allow(clippy::many_single_char_names)]
// Used for context::context
#![allow(clippy::module_inception)]
// Not implementing default is sometimes useful in the case something has significant cost
// to allocate. If you implement default, it can be allocated without evidence using the
// ..Default::default() syntax. Not fun in kernel space
#![allow(clippy::new_without_default)]
// Used to make it nicer to return errors, for example, .ok_or(Error::new(ESRCH))
#![allow(clippy::or_fun_call)]
// This is needed in some cases, like for syscall
#![allow(clippy::too_many_arguments)]
// There is no harm in this being done
#![allow(clippy::useless_format)]
// TODO: address ocurrances and then deny
#![warn(clippy::not_unsafe_ptr_arg_deref)]
// TODO: address ocurrances and then deny
#![warn(clippy::cast_ptr_alignment)]
// This is usually a serious issue - a missing import of a define where it is interpreted
// as a catch-all variable in a match, for example
#![deny(unreachable_patterns)]
#![feature(allocator_api)]
#![feature(asm)]
#![feature(concat_idents)]

2
src/log.rs
View File

@@ -16,7 +16,7 @@ impl Log {
pub fn new(size: usize) -> Log {
Log {
data: VecDeque::with_capacity(size),
size: size
size
}
}

9
src/memory/mod.rs
View File

@@ -46,7 +46,7 @@ pub struct MemoryAreaIter {
impl MemoryAreaIter {
fn new(_type: u32) -> Self {
MemoryAreaIter {
_type: _type,
_type,
i: 0
}
}
@@ -73,7 +73,7 @@ static ALLOCATOR: Mutex<Option<RecycleAllocator<BumpAllocator>>> = Mutex::new(No
pub unsafe fn init(kernel_start: usize, kernel_end: usize) {
// Copy memory map from bootloader location
for (i, entry) in MEMORY_MAP.iter_mut().enumerate() {
*entry = *(0x500 as *const MemoryArea).offset(i as isize);
*entry = *(0x500 as *const MemoryArea).add(i);
if entry._type != MEMORY_AREA_NULL {
println!("{:?}", entry);
}
@@ -157,10 +157,7 @@ impl Frame {
//TODO: Set private
pub fn range_inclusive(start: Frame, end: Frame) -> FrameIter {
FrameIter {
start: start,
end: end,
}
FrameIter { start, end }
}
}

2
src/memory/recycle.rs
View File

@@ -16,7 +16,7 @@ pub struct RecycleAllocator<T: FrameAllocator> {
impl<T: FrameAllocator> RecycleAllocator<T> {
pub fn new(inner: T) -> Self {
Self {
inner: inner,
inner,
noncore: false,
free: Vec::new(),
}

2
src/scheme/debug.rs
View File

@@ -8,7 +8,7 @@ use crate::sync::WaitQueue;
use crate::syscall::flag::{EventFlags, EVENT_READ, F_GETFL, F_SETFL, O_ACCMODE, O_NONBLOCK};
use crate::syscall::scheme::Scheme;
pub static DEBUG_SCHEME_ID: AtomicSchemeId = ATOMIC_SCHEMEID_INIT;
pub static DEBUG_SCHEME_ID: AtomicSchemeId = AtomicSchemeId::default();
/// Input queue
static INPUT: Once<WaitQueue<u8>> = Once::new();

4
src/scheme/irq.rs
View File

@@ -4,12 +4,12 @@ use spin::Mutex;
use crate::event;
use crate::interrupt::irq::acknowledge;
use crate::scheme::{AtomicSchemeId, ATOMIC_SCHEMEID_INIT, SchemeId};
use crate::scheme::{AtomicSchemeId, SchemeId};
use crate::syscall::error::*;
use crate::syscall::flag::{EventFlags, EVENT_READ};
use crate::syscall::scheme::Scheme;
pub static IRQ_SCHEME_ID: AtomicSchemeId = ATOMIC_SCHEMEID_INIT;
pub static IRQ_SCHEME_ID: AtomicSchemeId = AtomicSchemeId::default();
/// IRQ queues
static ACKS: Mutex<[usize; 16]> = Mutex::new([0; 16]);

2
src/scheme/mod.rs
View File

@@ -77,8 +77,6 @@ int_like!(SchemeNamespace, AtomicSchemeNamespace, usize, AtomicUsize);
// Unique identifier for a scheme.
int_like!(SchemeId, AtomicSchemeId, usize, AtomicUsize);
pub const ATOMIC_SCHEMEID_INIT: AtomicSchemeId = AtomicSchemeId::default();
// Unique identifier for a file descriptor.
int_like!(FileHandle, AtomicFileHandle, usize, AtomicUsize);

10
src/scheme/pipe.rs
View File

@@ -4,7 +4,7 @@ use core::sync::atomic::{AtomicUsize, Ordering};
use spin::{Mutex, Once, RwLock, RwLockReadGuard, RwLockWriteGuard};
use crate::event;
use crate::scheme::{AtomicSchemeId, ATOMIC_SCHEMEID_INIT, SchemeId};
use crate::scheme::{AtomicSchemeId, SchemeId};
use crate::sync::WaitCondition;
use crate::syscall::error::{Error, Result, EAGAIN, EBADF, EINTR, EINVAL, EPIPE, ESPIPE};
use crate::syscall::flag::{EventFlags, EVENT_READ, EVENT_WRITE, F_GETFL, F_SETFL, O_ACCMODE, O_NONBLOCK, MODE_FIFO};
@@ -12,7 +12,7 @@ use crate::syscall::scheme::Scheme;
use crate::syscall::data::Stat;
/// Pipes list
pub static PIPE_SCHEME_ID: AtomicSchemeId = ATOMIC_SCHEMEID_INIT;
pub static PIPE_SCHEME_ID: AtomicSchemeId = AtomicSchemeId::default();
static PIPE_NEXT_ID: AtomicUsize = AtomicUsize::new(0);
static PIPES: Once<RwLock<(BTreeMap<usize, Arc<PipeRead>>, BTreeMap<usize, Arc<PipeWrite>>)>> = Once::new();
@@ -204,10 +204,8 @@ impl PipeRead {
return Ok(0);
} else if self.flags.load(Ordering::SeqCst) & O_NONBLOCK == O_NONBLOCK {
return Err(Error::new(EAGAIN));
} else {
if ! self.condition.wait() {
return Err(Error::new(EINTR));
}
} else if ! self.condition.wait() {
return Err(Error::new(EINTR));
}
}
}

8
src/scheme/proc.rs
View File

@@ -2,7 +2,7 @@ use crate::{
arch::paging::VirtualAddress,
context::{self, Context, ContextId, Status},
ptrace,
scheme::{ATOMIC_SCHEMEID_INIT, AtomicSchemeId, SchemeId},
scheme::{AtomicSchemeId, SchemeId},
syscall::{
data::{FloatRegisters, IntRegisters, PtraceEvent},
error::*,
@@ -167,7 +167,7 @@ impl Handle {
}
}
pub static PROC_SCHEME_ID: AtomicSchemeId = ATOMIC_SCHEMEID_INIT;
pub static PROC_SCHEME_ID: AtomicSchemeId = AtomicSchemeId::default();
pub struct ProcScheme {
next_id: AtomicUsize,
@@ -520,8 +520,8 @@ impl Scheme for ProcScheme {
match cmd {
F_SETFL => { handle.info.flags = arg; Ok(0) },
F_GETFL => return Ok(handle.info.flags),
_ => return Err(Error::new(EINVAL))
F_GETFL => Ok(handle.info.flags),
_ => Err(Error::new(EINVAL))
}
}

4
src/scheme/root.rs
View File

@@ -63,8 +63,8 @@ pub struct RootScheme {
impl RootScheme {
pub fn new(scheme_ns: SchemeNamespace, scheme_id: SchemeId) -> RootScheme {
RootScheme {
scheme_ns: scheme_ns,
scheme_id: scheme_id,
scheme_ns,
scheme_id,
next_id: AtomicUsize::new(0),
handles: RwLock::new(BTreeMap::new()),
}

22
src/scheme/sys/mod.rs
View File

@@ -40,19 +40,19 @@ impl SysScheme {
pub fn new() -> SysScheme {
let mut files: BTreeMap<&'static [u8], Box<SysFn>> = BTreeMap::new();
files.insert(b"context", Box::new(move || context::resource()));
files.insert(b"cpu", Box::new(move || cpu::resource()));
files.insert(b"exe", Box::new(move || exe::resource()));
files.insert(b"iostat", Box::new(move || iostat::resource()));
files.insert(b"log", Box::new(move || log::resource()));
files.insert(b"scheme", Box::new(move || scheme::resource()));
files.insert(b"scheme_num", Box::new(move || scheme_num::resource()));
files.insert(b"syscall", Box::new(move || syscall::resource()));
files.insert(b"uname", Box::new(move || uname::resource()));
files.insert(b"context", Box::new(context::resource));
files.insert(b"cpu", Box::new(cpu::resource));
files.insert(b"exe", Box::new(exe::resource));
files.insert(b"iostat", Box::new(iostat::resource));
files.insert(b"log", Box::new(log::resource));
files.insert(b"scheme", Box::new(scheme::resource));
files.insert(b"scheme_num", Box::new(scheme_num::resource));
files.insert(b"syscall", Box::new(syscall::resource));
files.insert(b"uname", Box::new(uname::resource));
SysScheme {
next_id: AtomicUsize::new(0),
files: files,
files,
handles: RwLock::new(BTreeMap::new())
}
}
@@ -75,7 +75,7 @@ impl Scheme for SysScheme {
let id = self.next_id.fetch_add(1, Ordering::SeqCst);
self.handles.write().insert(id, Handle {
path: b"",
data: data,
data,
mode: MODE_DIR | 0o444,
seek: 0
});

2
src/scheme/time.rs
View File

@@ -20,7 +20,7 @@ pub struct TimeScheme {
impl TimeScheme {
pub fn new(scheme_id: SchemeId) -> TimeScheme {
TimeScheme {
scheme_id: scheme_id,
scheme_id,
next_id: AtomicUsize::new(0),
handles: RwLock::new(BTreeMap::new())
}

38
src/scheme/user.rs
View File

@@ -12,7 +12,7 @@ use crate::event;
use crate::paging::{InactivePageTable, Page, VirtualAddress};
use crate::paging::entry::EntryFlags;
use crate::paging::temporary_page::TemporaryPage;
use crate::scheme::{AtomicSchemeId, ATOMIC_SCHEMEID_INIT, SchemeId};
use crate::scheme::{AtomicSchemeId, SchemeId};
use crate::sync::{WaitQueue, WaitMap};
use crate::syscall::data::{Map, Packet, Stat, StatVfs, TimeSpec};
use crate::syscall::error::*;
@@ -38,13 +38,13 @@ pub struct UserInner {
impl UserInner {
pub fn new(root_id: SchemeId, handle_id: usize, name: Box<[u8]>, flags: usize, context: Weak<RwLock<Context>>) -> UserInner {
UserInner {
root_id: root_id,
handle_id: handle_id,
name: name,
flags: flags,
scheme_id: ATOMIC_SCHEMEID_INIT,
root_id,
handle_id,
name,
flags,
scheme_id: AtomicSchemeId::default(),
next_id: AtomicU64::new(1),
context: context,
context,
todo: WaitQueue::new(),
fmap: Mutex::new(BTreeMap::new()),
funmap: Mutex::new(BTreeMap::new()),
@@ -78,12 +78,12 @@ impl UserInner {
self.call_inner(Packet {
id: self.next_id.fetch_add(1, Ordering::SeqCst),
pid: pid.into(),
uid: uid,
gid: gid,
a: a,
b: b,
c: c,
d: d
uid,
gid,
a,
b,
c,
d
})
}
@@ -229,7 +229,7 @@ impl UserInner {
let len = buf.len()/packet_size;
let mut i = 0;
while i < len {
let mut packet = unsafe { *(buf.as_ptr() as *const Packet).offset(i as isize) };
let mut packet = unsafe { *(buf.as_ptr() as *const Packet).add(i) };
if packet.id == 0 {
match packet.a {
SYS_FEVENT => event::trigger(self.scheme_id.load(Ordering::SeqCst), packet.b, EventFlags::from_bits_truncate(packet.c)),
@@ -273,9 +273,7 @@ pub struct UserScheme {
impl UserScheme {
pub fn new(inner: Weak<UserInner>) -> UserScheme {
UserScheme {
inner: inner
}
UserScheme { inner }
}
}
@@ -394,10 +392,10 @@ impl Scheme for UserScheme {
inner.fmap.lock().insert(id, (context_lock, desc, *map));
let result = inner.call_inner(Packet {
id: id,
id,
pid: pid.into(),
uid: uid,
gid: gid,
uid,
gid,
a: SYS_FMAP,
b: file,
c: address,

13
src/syscall/fs.rs
View File

@@ -29,12 +29,12 @@ pub fn file_op(a: usize, fd: FileHandle, c: usize, d: usize) -> Result<usize> {
let mut packet = Packet {
id: 0,
pid: pid.into(),
uid: uid,
gid: gid,
a: a,
uid,
gid,
a,
b: file.description.read().number,
c: c,
d: d
c,
d
};
scheme.handle(&mut packet);
@@ -406,8 +406,7 @@ pub fn frename(fd: FileHandle, path: &[u8]) -> Result<usize> {
let contexts = context::contexts();
let context_lock = contexts.current().ok_or(Error::new(ESRCH))?;
let context = context_lock.read();
let file = context.get_file(fd).ok_or(Error::new(EBADF))?;
file
context.get_file(fd).ok_or(Error::new(EBADF))?
};
let (path_canon, uid, gid, scheme_ns) = {

13
src/syscall/process.rs
View File

@@ -149,7 +149,7 @@ pub fn clone(flags: CloneFlags, stack_base: usize) -> Result<ContextId> {
// Change the return address of the child
// (previously syscall) to the arch-specific
// clone_ret callback
let func_ptr = new_stack.as_mut_ptr().offset(offset as isize);
let func_ptr = new_stack.as_mut_ptr().add(offset);
*(func_ptr as *mut usize) = interrupt::syscall::clone_ret as usize;
}
@@ -1044,7 +1044,6 @@ pub fn fexec(fd: FileHandle, arg_ptrs: &[[usize; 2]], var_ptrs: &[[usize; 2]]) -
// Argument must be moved into kernel space before exec unmaps all memory
args.push(arg.to_vec().into_boxed_slice());
}
drop(arg_ptrs);
let mut vars = Vec::new();
for var_ptr in var_ptrs {
@@ -1052,7 +1051,9 @@ pub fn fexec(fd: FileHandle, arg_ptrs: &[[usize; 2]], var_ptrs: &[[usize; 2]]) -
// Argument must be moved into kernel space before exec unmaps all memory
vars.push(var.to_vec().into_boxed_slice());
}
drop(var_ptrs);
// Neither arg_ptrs nor var_ptrs should be used after this point, the kernel
// now has owned copies in args and vars
fexec_kernel(fd, args.into_boxed_slice(), vars.into_boxed_slice(), None)
}
@@ -1125,10 +1126,8 @@ pub fn exit(status: usize) -> ! {
if let Some(parent_lock) = contexts.get(ppid) {
let waitpid = {
let mut parent = parent_lock.write();
if vfork {
if ! parent.unblock() {
println!("{}: {} not blocked for exit vfork unblock", pid.into(), ppid.into());
}
if vfork && ! parent.unblock() {
println!("{}: {} not blocked for exit vfork unblock", pid.into(), ppid.into());
}
Arc::clone(&parent.waitpid)
};

2
src/syscall/validate.rs
View File

@@ -28,6 +28,7 @@ fn validate(address: usize, size: usize, flags: EntryFlags) -> Result<()> {
}
/// Convert a pointer and length to slice, if valid
//TODO: Mark unsafe
pub fn validate_slice<T>(ptr: *const T, len: usize) -> Result<&'static [T]> {
if len == 0 {
Ok(&[])
@@ -38,6 +39,7 @@ pub fn validate_slice<T>(ptr: *const T, len: usize) -> Result<&'static [T]> {
}
/// Convert a pointer and length to slice, if valid
//TODO: Mark unsafe
pub fn validate_slice_mut<T>(ptr: *mut T, len: usize) -> Result<&'static mut [T]> {
if len == 0 {
Ok(&mut [])