0847cfcb65
kernel: Add a getdents() syscall
continuous-integration/drone/push Build is passing
2023-03-28 21:28:56 +02:00
8eb4d693ac
VFS: Add virtual method get() for getdents() and make existence checking occur in add_entry()
2023-03-28 21:15:26 +02:00
6239ed83c7
kernel+libc: Add F_GETFD, F_SETFD, F_GETFL and F_SETFL to fcntl
2023-03-28 20:55:38 +02:00
1635eaf992
kernel: Eliminate the splash screen
...
Userspace is free to show a splash if it wants, but the kernel shouldn't force it upon us.
2023-03-24 21:48:32 +01:00
770286a19d
kernel+libc: Implement fcntl() for F_DUPFD and F_DUPFD_CLOEXEC
continuous-integration/drone/push Build is passing
2023-03-24 21:33:20 +01:00
0de41410c6
kernel: Use path as the new process name instead of argv[0]
2023-03-24 21:26:45 +01:00
8b712b04c2
kernel: Build with optimizations only in debug mode
2023-03-24 21:25:26 +01:00
36e48b2ad2
kernel: Do not attempt to close non-existent FDs on exec()
2023-03-24 21:21:13 +01:00
374a9ff7b8
kernel+libc: Implement O_CLOEXEC
2023-03-24 21:19:24 +01:00
d48d0efb07
kernel: Add names to threads
continuous-integration/drone/push Build is passing
2023-03-24 21:05:38 +01:00
4d3050eaab
kernel: Retrieve all thread information before marking it as dead in waitpid()
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continuous-integration/drone/push Build is passing
In case we get interrupted by the reaper thread.
2023-03-24 20:59:07 +01:00
e76ccd6c4c
kernel+libc+init: Add getppid() and wait()
continuous-integration/drone/push Build is passing
2023-03-24 17:39:55 +01:00
7efcc06090
kernel+init+sh: Implement parent processes and waitpid(-1, ...)
continuous-integration/drone/push Build is passing
2023-03-24 17:37:04 +01:00
f084b57f39
kernel+sh: Allow using Ctrl+D to send EOF
continuous-integration/drone/push Build is failing
2023-03-24 17:21:21 +01:00
d63c8abbfd
kernel/x86_64: Terminate page faults in a waitpid-friendly way
2023-03-24 00:52:17 +01:00
b6fb5f3dfe
kernel+libc: Implement waitpid()
continuous-integration/drone/push Build is passing
2023-03-23 22:42:24 +01:00
41c7e3780d
kernel: Add support for exit codes and start preparing for waitpid()
2023-03-23 22:25:56 +01:00
937802964c
kernel: Invert O_NONBLOCK to check whether a thread should block
2023-03-23 21:34:38 +01:00
95e884db97
kernel: Fix compilation
2023-03-23 21:34:09 +01:00
03adaa356c
kernel: Avoid printing keypresses twice
2023-03-23 21:33:50 +01:00
cda036ce70
ConsoleDevice: Use a temporary buffer for backspace handling
continuous-integration/drone/push Build is failing
2023-03-23 21:22:12 +01:00
d33fccc66f
kernel: Implement reading from /dev/console
2023-03-19 19:15:19 +01:00
51f0bdff0e
kernel+libc: Add O_NONBLOCK
continuous-integration/drone/push Build is passing
2023-03-19 11:25:14 +01:00
41514d9ad2
kernel: Add support for blocking reads
2023-03-19 11:21:50 +01:00
cd00e41f59
arch/x86_64: Decode keyboard scancodes
continuous-integration/drone/push Build is passing
2023-03-19 11:17:43 +01:00
54f2d35416
kernel: Add the fork() system call
2023-03-18 23:45:48 +01:00
a4ac3c85ed
kernel+libc: Copy argv to userspace
continuous-integration/drone/push Build is passing
2023-03-18 22:25:19 +01:00
0b00dc3fe4
kernel/exec: Rename item to string_addr
continuous-integration/drone/push Build is passing
2023-03-18 21:56:34 +01:00
7f50893786
kernel/exec: Copy argv from userspace
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2023-03-18 21:55:16 +01:00
49952320d6
kernel+libluna: Remove console_write entirely
continuous-integration/drone/push Build is passing
2023-03-18 20:12:59 +01:00
6a6a56a8b4
kernel: Make /dev/console actually respect the length parameter instead of trusting userspace's null terminators
2023-03-18 20:10:00 +01:00
d01ba20749
kernel/TextConsole: Add a write() function that accepts a fixed-size buffer instead of relying on null terminators
2023-03-18 20:09:10 +01:00
629ed9e43b
libc: Start switching to /dev/console for console IO and add a proper init
2023-03-18 19:23:18 +01:00
7173c05a22
kernel: Add support for special device files and add a mknod() syscall
2023-03-18 09:10:33 +01:00
b9e8030aac
kernel: Free the initial ramdisk memory after copying everything into the VFS
continuous-integration/drone/push Build is passing
2023-03-16 23:02:53 +01:00
59838f1225
kernel: Replace some raw divisions with get_blocks_from_size()
2023-03-16 23:01:35 +01:00
8c72e9a49a
kernel: Add an exec() system call
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continuous-integration/drone/push Build is passing
Doesn't support arguments or environment for now.
2023-03-16 22:44:58 +01:00
08c888eaae
kernel+libc: Remove (de)allocate_memory and replace it with POSIX mmap
continuous-integration/drone/push Build is passing
2023-03-14 20:43:15 +01:00
d66506256d
kernel/VFS+libc: Introduce modes
continuous-integration/drone/push Build is passing
2023-03-12 16:55:46 +01:00
02dbcbbfa1
kernel: Add strdup_from_user()
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2023-03-12 16:30:36 +01:00
682d3c753e
kernel+libc: Add mkdir()
continuous-integration/drone/push Build is passing
2023-03-12 15:32:09 +01:00
354ffd033c
VFS: Add a size() method to inodes to implement seeking to the end of a file
continuous-integration/drone/push Build is passing
2023-03-12 14:49:21 +01:00
b54a7f3a80
kernel+libc: Add O_* flags and parse them in open()
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continuous-integration/drone/push Build is passing
O_RDONLY, O_WRONLY, O_RDWR, O_TRUNC, O_CREAT and O_EXCL are fully implemented.
O_APPEND is partially implemented.
Other flags are not here yet.
2023-03-12 14:43:58 +01:00
bd572473ad
kernel: Remove FileDescriptorTable and add a helper to resolve fds to FileDescriptors
2023-03-12 13:57:38 +01:00
7e655e320a
kernel+libc: Add the lseek() syscall, and fseek, ftell, rewind, fsetpos, and fgetpos
continuous-integration/drone/push Build is passing
2023-03-12 13:15:24 +01:00
292433dc39
kernel+libc: Add the write() system call, and fwrite()
2023-03-12 11:37:41 +01:00
c0a7f6776f
kernel+libc: Add getpid()
continuous-integration/drone/push Build is passing
2023-03-11 22:19:58 +01:00
8fa72f3cf0
kernel+libc: Implement read()
continuous-integration/drone/push Build is passing
2023-03-11 18:02:50 +01:00
810c4bc257
kernel+libc: Start interfacing with the VFS from userspace (open & close)
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This commit adds open and close syscalls to the kernel, and adds matching wrappers to libc.
No read/write support, so file descriptors are kind of useless for now.
2023-03-11 17:45:20 +01:00
ff468db675
kernel/ELF+Scheduler: Use VFS instead of TarStream
continuous-integration/drone/push Build is passing
2023-03-11 10:34:08 +01:00
c6aa2fe4ad
VFS: Populate the initial filesystem based on the initial ramdisk
2023-03-11 10:23:46 +01:00
ac304073b4
tmpfs: Disallow creating files/folders with already used names
2023-03-11 10:14:42 +01:00
d95ef110c9
vfs: Add support for creating directories given a full path
2023-03-11 01:13:44 +01:00
e5a41d2d52
tmpfs: Implement FileInode read() and write()
2023-03-11 00:52:39 +01:00
6fbf97292a
VFS: Implement resolve_path() using PathParser
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continuous-integration/drone/push Build is passing
Already works better than old luna (handles .. correctly)
2023-03-10 22:18:48 +01:00
ff770b7328
VFS+TmpFS: Add support for creating subdirectories (mkdir)
continuous-integration/drone/push Build is passing
2023-03-10 21:09:08 +01:00
abdd460525
tmpfs: use adopt_shared_if_nonnull instead of plain adopt_shared in FileSystem::create()
2023-03-07 22:16:52 +01:00
e30eec4213
kernel/x86_64: Avoid kernel panics when a page fault occurs in a userspace thread
2023-03-07 21:08:05 +01:00
ca85a69442
kernel: Save floating-point environment when switching in and out of userspace threads
2023-03-07 20:59:11 +01:00
de38eb6877
luna: Remove pure_cstyle_format
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continuous-integration/drone/push Build is passing
It was causing a lot of code duplication. If someone doesn't have errors, just return {} from the callback and unwrap the Result.
2023-03-02 13:38:21 +01:00
a595a77421
kernel: Print percentage in splash screen
continuous-integration/drone/push Build is passing
2023-02-27 16:27:59 +01:00
9afff7c544
kernel: Add a fun splash screen during boot :)
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continuous-integration/drone/push Build is passing
Mostly for fun.
Has a lot of delay in order to see the actual splash screen.
2023-02-27 16:23:51 +01:00
65dd3cd7fb
TmpFS: Use StaticString<128> instead of char[128]
2023-02-27 15:22:39 +01:00
8ba571a30e
TmpFS: Use a fixed char array in DirInode's Entry instead of OwnedStringView
2023-02-27 15:22:39 +01:00
01b6294f76
kernel: Implement creating file inodes in tmpfs directories
2023-02-27 15:22:38 +01:00
a65f4311aa
tmpfs: make the root inode a DirInode instead of a FileInode
2023-02-27 15:22:38 +01:00
dd2f31d8d0
tmpfs: add DirInode skeleton
2023-02-27 15:22:38 +01:00
5fb292bc0e
tmpfs: rename tmpfs::Inode to tmpfs::FileInode
2023-02-27 15:22:37 +01:00
d3bda46325
tmpfs: Make m_next_inode_number atomic
2023-02-27 15:22:37 +01:00
ba9d725481
kernel: Rename FileSystem::root() to root_inode() and add a shortcut for the root filesystem's root inode
2023-02-27 15:22:37 +01:00
3a2b8bcfd7
kernel: Make a factory function for filesystem creation of inodes, and add inode numbers
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Now every filesystem must provide fs->create_file_inode() for new inodes :)
2023-02-27 15:22:37 +01:00
a49555addc
kernel: Add a subclass of VFS::Inode to make it easier to implement file inodes
2023-02-27 15:22:36 +01:00
9274ad0404
kernel, luna: Move Spinlock.h to luna
2023-02-27 15:22:24 +01:00
c422d11682
kernel: Start working on a VFS implementation using OOP and SharedPtr
2023-02-27 15:22:24 +01:00
71b981175e
InitRD: Use MMU::translate_physical_address instead of allocating VM
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continuous-integration/drone/push Build is passing
This one is a perfect candidate, since we're just mapping a fixed continuous range of physical memory to virtual memory.
2023-02-27 13:27:21 +01:00
f0a3f99cf9
MemoryManager: Initialize KernelVM at the end of init()
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KernelVM is not needed for MMU's init process anymore.
2023-02-27 13:24:58 +01:00
519aa347dd
x86_64: Remove recursive mapping related things from MMU.h
continuous-integration/drone/push Build is passing
2023-02-27 13:07:52 +01:00
3ec54fafde
x86_64/MMU: Do not allocate level 1 page tables for huge page entries
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continuous-integration/drone/pr Build is passing
continuous-integration/drone/push Build is passing
This would leak memory, since we would never end up using them.
2023-02-27 12:55:15 +01:00
752dfdbf1c
MemoryManager: Reuse the existing mapping of physical memory that MMU has
continuous-integration/drone/pr Build is passing
2023-02-27 12:51:29 +01:00
8df441064f
x86_64/MMU: Map the physical address space using huge pages
2023-02-27 12:47:17 +01:00
426f6e4da8
x86_64: Allow mapping huge pages, but don't do it yet
2023-02-27 12:41:28 +01:00
837d483e0b
x86_64/MMU: Copy from the mapped kernel directory instead of the physical version
continuous-integration/drone/pr Build is passing
2023-02-27 12:30:52 +01:00
995d1bc36e
x86_64/MMU: Map all physical memory into the higher half instead of using recursive mapping
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continuous-integration/drone/pr Build is passing
This still has a few problems. Notably, we are not using huge pages for this mapping, which would be a lot more efficient.
Right now, used memory is 8.1 MiB at boot for a 256MiB system.
But after improving it, this system will be much better than recursive mapping.
fork() will be MUCH easier to implement, for example.
2023-02-27 12:24:21 +01:00
0985b75057
kernel: Add a guard page to the bootstrap stack so that we can catch more stack overflows
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2023-02-25 17:42:32 +01:00
8352df5ee8
kernel: Enable UBSAN when building in debug mode
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2023-02-25 17:37:50 +01:00
794567327f
kernel, luna: Port non-VFS changes over from pull request #22
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continuous-integration/drone/push Build is passing
OwnedPtr, SharedPtr: Add operator bool
Option, Result: Make try_move_value() non-const since it modifies the Option
kernel: Switch to a stack we control for the main task as soon as we leave early boot
Heap: Fix GPF caused when making many small allocations
Heap: Avoid accessing a block after it's potentially deleted
luna: Skip UBSAN.cpp in CMakeLists as that's not implemented yet
luna: Use spinlocks in the heap implementation
kernel, luna: Move Spinlock.h to luna
Option: Use __builtin_launder to ensure that the compiler doesn't label this as UB
SharedPtr: Implement make_shared using adopt_shared
SharedPtr: Delete ptr on failure in all adopt_shared* functions
2023-02-25 17:09:03 +01:00
89958fbc74
kernel: Show a more technical message on failure to remap kernel data sections
continuous-integration/drone/push Build is passing
2023-02-02 21:26:07 +01:00
c05a87c7ff
kernel: Reenable the text console on panic
continuous-integration/drone/push Build is passing
2023-02-01 22:58:31 +01:00
3a84e4998c
kernel/Thread: Add FIXME
continuous-integration/drone/push Build is passing
2023-01-31 17:02:49 +01:00
35501407c1
kernel: Stop shouting when creating threads
continuous-integration/drone/push Build is passing
2023-01-25 21:25:34 +01:00
fd0e29ede5
kernel: Add FIXME in copy_to_user()/copy_from_user()
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2023-01-25 21:22:14 +01:00
635437a4a4
luna: Add a new idiomatic way to mark unused parameters as used while keeping their names
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Just call ignore(...)
2023-01-25 21:14:44 +01:00
39042cbbd4
kernel: PCI constness updates
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2023-01-25 21:01:45 +01:00
fa29d6e9b9
kernel: Rename PCI::callback_t to PCI::Callback
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2023-01-25 20:58:59 +01:00
15c89a3592
kernel: Implement filtered PCI scans
continuous-integration/drone/push Build is passing
2023-01-23 21:24:05 +01:00
3a4ca73df7
kernel: Sync log output
continuous-integration/drone/push Build is passing
2023-01-23 20:42:34 +01:00
6677c643a5
kernel: Start scanning the PCI bus for devices
continuous-integration/drone/push Build is passing
2023-01-23 20:07:17 +01:00
de04c094e7
x86_64: Skip enabling WP for now until I find how to check for its availability
2023-01-23 20:06:45 +01:00
7f8a8cdcaf
kernel, libc: Add an usleep() system call and use that to implement usleep() and sleep() in libc
continuous-integration/drone/push Build is passing
2023-01-22 15:00:20 +01:00
d5b1d72396
x86_64/MMU: Map the kernel page directory to virtual memory
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This avoids depending on the kernel address space to create a new userspace one,
since there is no physical memory access.
This was fine for a single process, since its address space was created from the kernel one
and no more address spaces were created,
but for two or more, this started to become problematic, since we would create one address space
while being in another process's address space, which has no direct mapping of physical memory.
2023-01-22 14:46:03 +01:00
