Ashwin Naren
93df6b0ebc
get data w/ spinlock
2025-12-21 01:43:54 -08:00
Ashwin Naren
cb6dbdf5bb
futex impl
2025-12-21 01:43:54 -08:00
Ashwin Naren
3fbb56098c
futex impl
...
# Conflicts:
# usertest/src/main.rs
2025-12-21 01:43:54 -08:00
Ashwin Naren
cd6d830ae9
Initial proc fs ( #70 )
2025-12-21 01:37:14 -08:00
Ashwin Naren
35a6caa541
Implement sys_sysinfo ( #71 )
2025-12-20 15:42:08 -08:00
Ashwin Naren
b98a54b928
Stub sys_madvise ( #67 )
2025-12-19 15:28:43 -08:00
Ashwin Naren
fd65436604
Add rust file/dir usertest ( #65 )
2025-12-18 16:19:42 -08:00
Ashwin Naren
781b9b5c3f
implement mkdir and unlink
...
rm, mkdir and rmdir now work in tmpfs
2025-12-18 15:35:09 +00:00
Ashwin Naren
b8ad29b4b1
update .gitignore
2025-12-17 20:07:53 -08:00
Matthew Leach
9db6162414
formatting
2025-12-17 20:04:31 -08:00
Matthew Leach
0a32eeaaa0
scripts: create /tmp
...
Create /tmp and modify the kernel command line to mount tmpfs on /tmp.
2025-12-17 20:04:31 -08:00
Matthew Leach
5511e28b72
syscalls: implement ftruncate
2025-12-17 20:04:31 -08:00
Matthew Leach
8bc271c266
fs: open: pass create mode parameter
...
Pass the `mode` parameter to the open VFS call, specifying the
permissions of the file when O_CREAT is specified.
2025-12-17 20:04:31 -08:00
Matthew Leach
236dd3aa84
fs: reg: implement write
...
For some reason, `write` is just a copy of the `read` code. Fix that by
implementing `write`.
2025-12-17 20:04:31 -08:00
Matthew Leach
bebee6d8f5
libkernel: address: ensure to_pfn can only be called on PA
...
calculating a PFN from a VA makes no sense since it could be mapped to
any address. Therefore, ensure that it can *only* be called on PAs.
2025-12-17 20:04:31 -08:00
Matthew Leach
264d603044
drivers: fs: tmpfs: new
...
Add tmpfs driver and register with the kernel driver's FS subsystem.
2025-12-17 20:04:31 -08:00
Matthew Leach
a867493fa7
page_alloc: make test fixture public
...
Having the ability to use the `FrameAlloctor`, simulating via the heap
is a very useful pattern when testing libkernel code. Make the test
fixture public for other modules to use.
2025-12-17 20:04:31 -08:00
Matthew Leach
54f2d683b8
libkernel: move ClaimedPage into libkernel crate
...
By moving `ClaimedPage` into libkernel we can utilise it in
arch-agonstic ode.
2025-12-17 20:04:31 -08:00
Matthew Leach
c1bea5ecbb
tmpfs: new
...
Add basic directory inode implementation and tmpfs filesystem
implementation.
2025-12-17 20:04:31 -08:00
Matthew Leach
ba7848fc8b
libkernel: CpuOps: add 'static trait bound
...
The CpuOps trait should never hold a reference to any other object. In
fact, it should be a singleton object which is constructed at kernel
boot and live for the entire lifetime of the system. Therefore, it's
safe to add the `'static` trait bound.
2025-12-17 20:04:31 -08:00
Ashwin Naren
5c8793675d
Initialize buffer as 1s to ensure it's written to.
2025-12-16 04:51:57 +00:00
Ashwin Naren
ebd459039e
test read syscall
2025-12-16 04:51:57 +00:00
Ashwin Naren
bc9676b696
Add stopped state
2025-12-15 16:49:04 -08:00
Ashwin Naren
f1d2d007bb
handle stop and continue
2025-12-15 16:49:04 -08:00
Ashwin Naren
f63ad250f4
implement restarting
2025-12-15 21:22:53 +00:00
Matthew Leach
b8edd4af68
fat32: downcase 8.3 filenames
...
Using mtools to prepare the initrd image results in an image that
exclusively uses 8.3 filenames; as per the spec, the 8.3 filenames are
stored uppercase. However, on most UNIX systems, people are used to
dealing with down-case names; therefore convert the strings to
lower-case before passing back to the user.
2025-12-14 06:38:42 +00:00
Matthew Leach
4cd9fab80b
scripts: deps: usertest: new
...
Add a script to build the userspace test program and include it in the
initramfs.
2025-12-13 19:21:22 -08:00
Matthew Leach
e2a9306037
build-deps: busybox: don't popd too many times
...
Fix the busybox deps script's dir stack underflow.
2025-12-13 19:21:22 -08:00
Ashwin Naren
a4e9cf9fd9
formatting
2025-12-11 20:09:47 +00:00
Ashwin Naren
6d967332b7
remove old todo
2025-12-11 20:09:47 +00:00
Ashwin Naren
76f7707e00
test writing
2025-12-11 20:09:47 +00:00
Ashwin Naren
b05c606a2a
testing
2025-12-11 20:09:47 +00:00
Ashwin Naren
e2534ffd9c
Implement /dev/zero
2025-12-10 14:37:59 -08:00
Ashwin Naren
71f025b437
Implement /dev/null ( #48 )
2025-12-09 08:40:27 -08:00
Matthew Leach
511a0db41e
arch: arm64: parse cmdline from chosen node
...
The kernel command line is passed via the FDT's chosen node. Use that,
rather than hard-coding it into the kernel.
Fixes : #20
2025-12-07 16:41:45 +00:00
Matthew Leach
abd5ef39c2
create-image: use mtools to populate image
...
Use the `mtools` set of utilities to populate the image without the need
to run mount the image (requring sudo).
2025-12-07 16:41:35 +00:00
Matthew Leach
76624b8be0
scripts/deps/bash: fix build for later gcc
...
'bool' has become a reserved keyword in c23. If gcc is modern enough
that this is the default standard, it results in an error. Default to
c99 for the host compiler to fix the problem.
Patch suggested by: @dec-mcgraw
Fixes : #43
2025-12-07 16:41:35 +00:00
Matthew Leach
afaae627cf
scripts/deps/bash: use release tar
...
Rather than closing the entire git repo, use the offical tar.gz release
from GNU.
2025-12-07 16:41:35 +00:00
Matthew Leach
dec7348015
rust-toolchain.toml: add rust-analyzer
...
Add rust analyzer to project rust deps.
2025-12-07 16:41:35 +00:00
Brian R.
8101e6278f
Update README.md
...
I was having a hard time figuring out what this meant when I was going through the instructions the first time, and I believe that this would help clarify things for people who got stuck like I did. I also corrected the name for "Any OS" to clarify this is for X86-64 Linux OSes, because of the command I provided in the README.
2025-12-07 16:40:54 +00:00
Ashwin Naren
661f368334
implement sys_kill
2025-12-01 19:55:41 +00:00
NerdNextDoor
0904a1994c
Introduce experimental macOS build support
...
Tested on my M4 MacBook Air, builds fine.
2025-11-30 21:15:30 +00:00
Matthew Leach
910203e0c2
syscalls: mprotect: implement
...
Implement the `mprotect` syscall. Including a bunch of tests for
ensuring proper VMA functionality regarding splitting and merging via
`mprotect`.
2025-11-30 20:13:36 +00:00
Matthew Leach
baf98c452f
libkernel: vmarea: shrink_to: implement
...
Implement a `shrink_to` function for a VMA. This shrinks the VMA's
region to the specified region, while recalculating file offsets and
size if the VMA is file-backed.
2025-11-30 20:13:36 +00:00
Matthew Leach
3e3a9ad0c5
libkernel: region: add punch_hole
...
Add a function for calculating the set difference when punching one
region out of another.
2025-11-30 20:13:36 +00:00
Matthew Leach
1b95049159
libkernel: memory: VMArea: page align on from_pheader
...
Page align any non-aligned program headers, fixing up the file offset
and filesz accordingly.
2025-11-30 20:13:36 +00:00
Herman Polloni
41814dddbe
Fix bash build on aarch64 host
2025-11-30 10:19:14 +00:00
Matthew Leach
8038a6c4e2
syscalls: sys_getrand: implement
...
Implement sys_getrand
2025-11-28 21:24:37 +00:00
Ashwin Naren
5f2c2491b8
implement fair scheduler
2025-11-28 21:06:07 +00:00
Bjorn Beishline
6d3af6a95d
Update syscall doc with newly implemented methods
2025-11-28 20:46:45 +00:00
