1092 Commits

Author	SHA1	Message	Date
apio	3638d3da46	kernel: Add binary format for shebang scripts	2023-07-30 18:46:19 +02:00
apio	1c76675e40	kernel: Add a framework to add more executable formats, possibly from userspace ... This lets us implement shebangs and possibly an interface similar to Linux's binfmt_misc.	2023-07-30 18:25:44 +02:00
apio	187f0ff83e	kernel: Rename Inode::blocking() to Inode::will_block_if_read()	2023-07-30 11:41:53 +02:00
apio	0c873923e8	kernel: Make OpenFileDescription shareable	2023-07-30 11:33:46 +02:00
apio	bb3127c212	kernel: Implement listen(), connect() and accept()	2023-07-30 11:33:06 +02:00
apio	7a7ae086f5	kernel: Use a did_close callback for UnixSockets	2023-07-30 11:33:06 +02:00
apio	fb08594a18	kernel: Separate FileDescriptors and OpenFileDescription ... Also, add a did_close() callback for OpenFileDescriptions losing all their references.	2023-07-30 11:33:06 +02:00
apio	a12b018b03	kernel+libc: Add basic Unix sockets (creation and binding)	2023-07-30 11:33:06 +02:00
apio	c4e30c3029	kernel: Add functionality to allow external inodes (such as sockets) to acquire an inode number from a file system ... This is only implemented in tmpfs.	2023-07-30 11:33:06 +02:00
apio	c1d08b904e	kernel+libluna: Add Buffer::dequeue_data()	2023-07-30 11:33:05 +02:00
apio	200bb6c240	kernel+libc+libos: Add inode type for sockets	2023-07-30 11:33:05 +02:00
apio	4ed7ec5e93	libluna: Store SharedPtr's ref count in the object itself	2023-07-30 11:32:46 +02:00
apio	28cc4b2306	kernel: Add default action for SIGWINCH	2023-07-27 14:00:30 +02:00
apio	11df5a2ec3	kernel: Use pid_t internally for process IDs ... This removes a bunch of casts between pid_t and u64, and makes more sense since pid_t is literally the data type for process IDs.	2023-07-26 21:32:00 +02:00
apio	5aad7d3154	kernel/x86_64: Fail on invalid interrupts instead of calling FIXME_UNHANDLED_INTERRUPT ... A FIXME is something that should be changed later, this is a check for something that should never happen.	2023-07-25 18:23:33 +02:00
apio	28dd8194af	kernel: Include waited-for grandchildren in RUSAGE_CHILDREN's times	2023-07-25 17:50:15 +02:00
apio	b88da4811f	kernel: Remove debug message in readlink	2023-07-25 17:30:56 +02:00
apio	105ed79f8f	kernel: Reenable userspace stack tracing, but hidden behind a config flag ... Sometimes this is needed for userspace program debugging (such as ports), but sometimes it can crash, so we leave it off by default.	2023-07-25 17:02:09 +02:00
apio	ad3f3bf4db	kernel: Log the release name and build date in the boot log	2023-07-24 11:48:01 +02:00
apio	358493a7bc	kernel: Add a system for release names in uname(), call alpha releases "Mercury"	2023-07-22 12:21:01 +02:00
apio	36a74fd8d6	kernel/x86_64: Provide an alternate kernel stack for exceptions ... This avoids stack-related triple faults, hopefully. Closes #33.	2023-07-21 15:14:52 +02:00
apio	310b325af8	kernel: Avoid some more -Wconversion errors in TextConsole	2023-07-21 15:14:05 +02:00
apio	cd6bf745a7	tests+kernel+init: Run tests automatically in a headless way	2023-07-21 14:09:37 +02:00
apio	bcfee628cb	kernel: Remove outdated FIXME	2023-07-15 13:19:47 +02:00
apio	0d41e1f7b6	kernel/ext2: Change outdated FIXME	2023-07-15 13:17:58 +02:00
apio	f9003d7a58	kernel: Mask away unsafe bits in rflags when restoring state after a signal	2023-07-15 11:54:48 +02:00
apio	89786d8be2	kernel: Save/restore the SSE/FPU state when executing signal handlers	2023-07-15 11:53:50 +02:00
apio	de6fe7f7c2	kernel+libc+sh: Make the TTY device actually follow termios rules ... Like, so much more termios compatibility!	2023-07-13 20:33:20 +02:00
apio	efd5bae7a5	kernel: Implement querying the terminal window size	2023-07-12 22:09:28 +02:00
apio	546d900454	libc+apps: Start implementing POSIX-compliant termios.h wrappers around tty ioctls	2023-07-12 19:23:06 +02:00
apio	5f698b4774	kernel: Don't create a new kernel stack on exec() ... The old one was not getting freed, creating a memory leak every exec(), which can get huge over time. Plus, there was no need for a new stack. And we couldn't just free the old one, since sys_execve() runs on the old stack...	2023-07-12 16:06:56 +02:00
apio	f629e17ff4	kernel/x86_64: Only show kernel addresses in backtraces ... This avoids walking off into userspace memory where we don't know what could happen.	2023-07-12 16:04:45 +02:00
apio	81e1fdf81e	kernel+libc+login+sh+su: Implement foreground and background process groups in the default console ... Also, the console sends SIGINT to the foreground process group when ^C is pressed!	2023-07-12 13:49:37 +02:00
apio	9f45026cc2	kernel+sh: Implement interruptible syscalls	2023-07-12 13:48:43 +02:00
apio	71ff763dd9	kernel+libc: Add the SIGTTIN and SIGTTOU signals	2023-07-12 13:45:36 +02:00
apio	b64093dee5	kernel+libc: Implement getpgid()	2023-07-12 13:44:25 +02:00
apio	d27ffce5db	kernel: Move the signal handling logic to after a syscall sets its return value ... When a signal was caught after a syscall, it was doing so without preserving the return value of the syscall.	2023-07-12 13:34:30 +02:00
apio	69f9701097	kernel+libc: Implement isatty()	2023-07-11 12:05:09 +02:00
apio	7328cfe734	kernel: Add basic process groups	2023-07-11 11:51:07 +02:00
apio	86d14e0d0e	kernel+libc: Add the SA_NODEFER and SA_RESETHAND flags for sigaction()	2023-07-10 21:54:04 +02:00
apio	fe9827bbeb	kernel: Fix fallthrough in switch statement	2023-07-10 21:09:12 +02:00
apio	8066e8f1d8	kernel+libc: Implement sigprocmask() and friends	2023-07-10 21:01:59 +02:00
apio	015419b8f5	kernel: Generate signals when children exit / when faults occur ... Userspace can now catch segfaults!	2023-07-10 20:49:22 +02:00
apio	60d68b74e1	kernel: Define a good set of default signals ... Most of these have POSIX-defined numbers.	2023-07-10 20:30:37 +02:00
apio	cde467ee46	kernel: Support returning termination signals from waitpid	2023-07-10 20:16:06 +02:00
apio	fc3fdc2b87	kernel: Add default actions for signals	2023-07-10 19:59:01 +02:00
apio	bdcb690a7a	kernel: Avoid processing unregistered signals for init	2023-07-10 19:48:46 +02:00
apio	15d6aae701	kernel+libc: Implement basic signals	2023-07-10 19:46:57 +02:00
apio	56f3d26969	kernel+libluna: Fix the CRC32 algorithm and use it to verify the GPT header	2023-07-10 14:54:55 +02:00
apio	16b0531d42	kernel+apps+base+tools: Use Ext2 for the root partition file system ... init is now split into two parts: preinit, which lives in the initrd and prepares the root file system for init, and the actual /usr/bin/init, which lives in the root partition and starts services and reaps zombies. The kernel now looks for /bin/preinit instead of /bin/init as the executable for the init process. All configuration files in initrd/etc have been moved to base/etc. (The plan is to have only moon and preinit in the initrd.) Since the current Ext2 implementation is read-only (and it's on a CDROM so it would be read-only anyways), /home/selene is a tmpfs (as well as /tmp), to allow for a writable home directory. The system is slower now, but that's to expect since the Ext2 code doesn't use caching and the ATA code still uses PIO.	2023-07-10 13:05:06 +02:00
apio	40413eee18	kernel: Panic when PID 1 exits/crashes	2023-07-10 13:04:47 +02:00
apio	e3552d9df0	kernel: Log hostname changes	2023-07-10 13:04:40 +02:00
apio	a1b92fcc3f	kernel: Add the MOUNT_DEBUG flag	2023-07-10 13:04:34 +02:00
apio	0b488c1232	kernel: Actually use config.cmake ... Looks like file(EXISTS) needs a full path.	2023-07-10 13:04:26 +02:00
apio	b920ffee42	kernel: Don't use an active directory for the idle thread ... Just take the currently used directory.	2023-07-10 13:04:18 +02:00
apio	503dc72686	kernel: Set kernel threads' initial active directories to avoid taking the first directory they use ... This ends up being init's directory, which is fine when init's directory doesn't change... but a little less fine when the init process calls exec()... which is what it does in the new configuration I'm testing...	2023-07-10 13:04:00 +02:00
apio	7908c5a63e	kernel/ATA: Do not discard the controller if at least one channel initialized properly ... This was causing problems in VirtualBox.	2023-07-10 13:01:43 +02:00
apio	ae0cd155c3	kernel: Fix AddressSpace's move assignment operator	2023-07-09 20:43:03 +02:00
apio	c599251d2a	kernel: Rename UserVM to AddressSpace ... This is a more appropriate name now that it does more stuff than allocate virtual memory. To be fair, the name was a bit awkward anyway. Should have been UserVMAllocator I guess.	2023-07-09 20:38:04 +02:00
apio	5e564e9ae3	kernel: Move Thread::self_directory to UserVM ... Since this is only used by user threads, UserVM is a convenient/related place to store the PageDirectory in a RAII manner.	2023-07-09 20:32:42 +02:00
apio	af26dce038	kernel: Zero physical frames instead of virtual pages ... The memset() happens a bit earlier, and we don't have to remap the mapped virtual memory.	2023-07-04 00:49:26 +02:00
apio	3b1219ecf2	kernel/ext2: Make the inner extended superblock struct packed as well	2023-07-02 19:50:27 +02:00
apio	bd757d204e	kernel+libos+libluna: Avoid copying and reallocation when creating Strings ... This is done by reusing the existing buffers in Vector and Buffer instances.	2023-07-02 19:30:25 +02:00
apio	d363d5e915	kernel/ext2: Make sure we don't crash when accessing the last inode	2023-07-02 17:30:14 +02:00
apio	dd914b16d1	kernel: Stop showing memory stats at boot ... No userspace interface yet, but this can be shown using Shift+Ctrl+M.	2023-07-02 16:02:38 +02:00
apio	e9e7b22323	kernel: Separate a thread's page directory into two ... The self directory, and the active directory. The active directory is the one the thread is currently using, and the self directory is the one the thread owns. This lets us keep track of both, which fixes ext2 executables crashing the system.	2023-06-25 20:35:40 +02:00
apio	5f4103251a	kernel: Preserve the new page directory while exec() is running	2023-06-25 20:35:40 +02:00
apio	da689dd1a7	kernel/ext2: Allow reading up to 4 MB of data from files ... This is done by scanning the singly indirect pointer of the inode.	2023-06-25 20:35:39 +02:00
apio	41f578aa18	kernel/ext2: Add support for symbolic links	2023-06-25 20:35:38 +02:00
apio	34e1ef36b1	kernel: Make pivot_root() reset the parent entry of the new root directory ... Otherwise it would just be pointing to the old parent fs, and we don't want that.	2023-06-25 20:35:38 +02:00
apio	a62265b504	kernel/ext2: Implement directory traversal	2023-06-25 20:35:37 +02:00
apio	4fe6c506ec	kernel/ext2: Implement Inode::read()	2023-06-25 20:35:37 +02:00
apio	77686b26f8	kernel/Ext2: Read the root inode metadata from the disk	2023-06-25 20:35:36 +02:00
apio	a9460469d9	kernel+libc+apps: Add a source parameter to the mount() system call	2023-06-25 20:35:35 +02:00
apio	707f64acb5	kernel: Add an Ext2 filesystem skeleton	2023-06-25 20:35:35 +02:00
apio	ddf63471a8	kernel: Add missing debug flag to debug.cmake	2023-06-25 20:35:15 +02:00
apio	3b6f5b28fc	kernel: Make the configurable filename restrictions actually compile	2023-06-22 20:24:33 +02:00
apio	fdf2bb2501	kernel: Make the filename restrictions configurable	2023-06-22 20:22:43 +02:00
apio	3d157b760c	kernel: Make the stack and loaded program code regions persistent ... This way, they can't be modified by mmap() or munmap().	2023-06-19 12:44:49 +02:00
apio	54a1998d42	kernel: Also move children's parent to PID 1 in the common thread exit function	2023-06-19 12:35:31 +02:00
apio	e60b2a3d2f	kernel: Move thread exit code into a separate common function	2023-06-19 12:33:25 +02:00
apio	b4a6e4d56d	libluna/PathParser: Make dirname() and basename() static functions ... This avoids creating a PathParser to use them, which allocates memory that won't be used.	2023-06-19 11:21:58 +02:00
apio	7efc3a6ea1	kernel: Show stack traces on page faults + crash the process instead of the whole system on GPFs	2023-06-19 10:45:08 +02:00
apio	ae01a31104	kernel: Make sure the stack is 16-byte aligned on program startup ... This is required by the System V ABI and fixes some movaps-related GPFs in ndisasm.	2023-06-19 10:41:32 +02:00
apio	36e6787415	kernel: Make sure addresses allocated by mmap() are ALWAYS page-aligned ... Fixes a kernel crash. Thanks a lot, sysfuzz!	2023-06-18 20:29:32 +02:00
apio	04322d9ff7	kernel: Add a customizable configuration file system	2023-06-18 20:18:19 +02:00
apio	b7bdec9ece	kernel: Add a bunch more config definitions and hide debug messages behind them	2023-06-18 20:18:00 +02:00
apio	d45e9e2a8c	libluna: Simplify the API for Utf8StateDecoder by splitting it into multiple methods	2023-06-18 18:38:01 +02:00
apio	27d9cd0e87	kernel: Move TmpFS::*Inode into a separate file	2023-06-18 11:33:40 +02:00
apio	3a3473b9c2	kernel: Use memcpy() when cloning UserVM ... This way, any future fields in VMRegion get copied automatically.	2023-06-18 01:54:29 +02:00
apio	67ed18629d	kernel: Update the VM allocator for userspace to use a linked list ... This can cover the entire address space at once in a more memory-efficient way. Stress-tested using 'base64 /bin/ls' which allocates enough contiguous virtual memory to store the entirety of /bin/ls :) A couple of bugs and fixes later, here we are!	2023-06-18 01:48:48 +02:00
apio	266fa4a0d4	kernel: Start counting partition numbers at 1 ... This makes more sense for the end user.	2023-06-17 19:50:58 +02:00
apio	7cace9a0d7	kernel: Provide more meaningful panic messages for critical failures	2023-06-17 19:43:25 +02:00
apio	e79d4297ea	kernel: Make the root inode be a mountpoint as well + add pivot_root()	2023-06-17 17:27:22 +02:00
apio	b7a82fd895	kernel: Do not error out on zero-length reads/writes to bad addresses	2023-06-17 12:04:34 +02:00
apio	592558d7ad	kernel: Add GUID partition table support	2023-06-17 12:03:37 +02:00
apio	2be4880278	kernel: Name the scoped lock in ATADevice::read() ... Is that supposed to work without a name? Looks like it did!	2023-06-17 09:46:28 +02:00
apio	7a78609a85	kernel: Preserve kernel threads' page directories when they differ from the regular kernel page directory	2023-06-17 00:49:31 +02:00
apio	c2cdb861c9	kernel/ATA: Fix buffer overflow in ATADevice::read() with small sizes and unaligned offsets	2023-06-17 00:48:53 +02:00
apio	27b26f389c	kernel: Lock ATADevice::read_lba() using ATA::Channel's KMutex	2023-06-17 00:22:38 +02:00