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Author SHA1 Message Date
Bananymous 2f52001c6d Kernel: Locks allow locking after locker is invalid 
SpinLock and RecursiveSpinLock will now allow locking after the initial
locker is invalid. This allows us to kill threads even if they are holding
internal locks
 2023-07-27 18:52:51 +03:00
Bananymous f609170a6a Kernel: DiskCache uses are now done without interrupts 
This allows disk cache to not be invalid state after partial read/write
 2023-07-27 18:52:51 +03:00
Bananymous 9f75b04714 Kernel: Scheduler can now check if tid is valid 
Tid can become invalid if the thread is already terminated
 2023-07-27 18:34:06 +03:00
Bananymous 7b4a2fe3d1 Kernel: Process::exit() unblocks the whole lock before blocking 2023-07-24 22:29:59 +03:00
Bananymous f6ee4b3496 Kernel: Implement SYS_GET_PID and SYS_TCSETPGID 
we don't have consept of process groups yet
 2023-07-24 22:29:59 +03:00
Bananymous 1ef0534b69 Kernel: TTY now stores foreground process pid 
this will be process pgid when we have process groups
 2023-07-24 22:29:59 +03:00
Bananymous b9dd1895bb Kernel: add Thread::queue_signal() 2023-07-24 22:26:10 +03:00
Bananymous be47743dfa Kernel: Scheduler can now block threads based on tid 2023-07-24 22:24:21 +03:00
Bananymous 57798e5d76 Kernel: remove Semaphore::is_blocked 
this will not mean anything after semaphores can spuriously wake up
 2023-07-24 22:23:13 +03:00
Bananymous cd64c1cfec Kernel: add is_tty() to inode 2023-07-24 22:19:59 +03:00
Bananymous f76d921e25 Kernel: you can now ask process if it is userspace process 2023-07-23 18:54:10 +03:00
Bananymous a2bf474013 Kernel: OpenFileDesctiptor can now return inode of fd 2023-07-23 18:52:33 +03:00
Bananymous 9729e5a05b Kernel: Change signal kernel API 
return rsp and rip are now stored per thread
 2023-07-23 18:33:10 +03:00
Bananymous 2dce0a0415 Kernel: Userspace signal handlers are now called one at a time 
I added a syscall for telling the kernel when signal execution has
finished. We should send a random hash or id to the signal trampoline
that we would include in the syscall, so validity of signal exit can
be confirmed.
 2023-07-23 13:34:53 +03:00
Bananymous d560137ae6 Kernel/LibC: add SYS_SIGNAL/signal() 2023-07-21 20:08:13 +03:00
Bananymous c12f4fb40f Kernel: Make signals more POSIX 2023-07-21 20:01:12 +03:00
Bananymous 10169d773d Kernel/LibC: Add SYS_KILL/kill() 2023-07-21 19:27:38 +03:00
Bananymous b78596dcf4 Kernel: Scheduler now sends queued signals 2023-07-21 19:27:10 +03:00
Bananymous 40f7c6b8fa Kernel: Make signals thread specific 2023-07-21 19:00:59 +03:00
Bananymous 8063700d7b Kernel: add default signal actions 2023-07-21 18:02:35 +03:00
Bananymous 70f89ed1fc BuildSystem: Strip kernel. We will add the map once we use it 2023-07-21 15:47:31 +03:00
Bananymous c2cf98e32f Kernel/LibC: Add bareboness signals 
You can now call raise() to raise a signal. Signal handlers are
not yet supported, but the handling works :)
 2023-07-21 15:45:02 +03:00
Bananymous a1db032ba9 Kernel: kernel memory takes now full pml4e 
This allows flags to work properly
 2023-07-21 13:47:05 +03:00
Bananymous 5babd7b4f2 Kernel: remove PAGE_FLAGS_MASK as that was not correct anymore 
After I added NXE bit, the flags mask is no longer valid
 2023-07-21 12:01:50 +03:00
Bananymous c0029a2fa2 Kernel: Don't map kernel executable memory as writable 2023-07-21 11:17:39 +03:00
Bananymous 4e35b8b49d Kernel: Syscalls now get the interrupt stack 2023-07-21 11:04:16 +03:00
Bananymous 21c6135ae2 BAN: Fix function call in Optional 2023-07-21 10:57:46 +03:00
Bananymous b02c486ad0 Kernel: add NullDevice to /dev/null 2023-07-20 00:06:22 +03:00
Bananymous 08cd285ca6 Kernel: move Device.h to its own directory 2023-07-19 23:55:38 +03:00
Bananymous 94af856db0 Kernel: cleanup sys_exec() 
We now scope everyting so desctructors get called
 2023-07-19 23:20:39 +03:00
Bananymous bf5d74b8bc Kernel: fix memory leak in PageTable 
PageTable used to leak 2 pages on creation and other two on deletion
 2023-07-19 23:17:39 +03:00
Bananymous fd9210ba9e Kernel: FixedWidthAllocator creation can now fail 2023-07-19 18:07:24 +03:00
Bananymous 66d9260257 Kernel: VirtualRange creation can fail 2023-07-19 17:56:26 +03:00
Bananymous 5d2bfc858e Kernel: SYS_FORK can now fail instead of panicing on error 2023-07-19 17:47:12 +03:00
Bananymous 8b34880064 Kernel: Fix bug which made bochs unbootable 
We could not boot if ATABus did not have valid primary device.
 2023-07-13 15:53:09 +03:00
Bananymous 98c698d9ec Kernel: Enable global bit on kernel pages 2023-07-13 15:23:25 +03:00
Bananymous 9ea2c1d932 Kernel: Support execute disable bit 
We will now map executable memory explicitly as executable.
 2023-07-13 14:28:53 +03:00
Bananymous 297e65f19a Kernel: CPUID can detect wether cpu supports nxe bit 2023-07-13 14:24:58 +03:00
Bananymous 65559a3e44 Kernel: Fix multiple bugs with terminal 2023-07-13 13:09:52 +03:00
Bananymous c3a71e94a9 Kernel: Fix ATA disk and partition numbering 2023-07-13 12:12:47 +03:00
Bananymous fb4b363a16 Init: Use the new pwd.h api for user parsing 2023-07-13 12:01:41 +03:00
Bananymous 4154f43b49 LibC: add getpwname() and getpwuid() 2023-07-13 12:01:16 +03:00
Bananymous b1fcb0b58f LibC: implement endpwent(), getpwent() and setpwent() 2023-07-13 11:22:09 +03:00
Bananymous 00409ffa60 Kernel: Ext2Inode::create_file actually sets the inode data 
We used to just create inode without touching its memory.
 2023-07-13 10:20:56 +03:00
Bananymous 16acd50559 BAN: Iterators are now single general type with CONST template 
This allows us to use the same base class for iterator and
const_iterator which were practically the same code.
 2023-07-12 13:35:21 +03:00
Bananymous 5df48804e1 BAN: add either_or and either_or_t 
This allows you to select type depending on constexpr evaluatable
boolean
 2023-07-12 13:34:31 +03:00
Bananymous 9eab6710ce BAN: Implement ConstIteratorDouble and add it to HashMap 
This is same as IteratorDouble except it uses const_iterator and does
not return non-const references.
 2023-07-12 11:41:05 +03:00
Bananymous 65424a6769 BAN: Generalize HashMapIterator to IteratorDouble 
This iterator should be able to iterate any container within container
with type iterator defined.

This also fixed bug if first entry in outer container is empty container.
 2023-07-12 09:29:05 +03:00
Bananymous 12d53ac233 Base: add empty directories with .gitkeep to base/ 2023-07-11 08:02:28 +03:00
Bananymous 9bcfb34524 Kernel: Rewrite whole device structure 
We now have DevFileSystem which is derived from RamFileSystem. All
devices are RamInodes. We don't have separate DeviceManager anymore.
To iterate over devices, you can loop througn every inode in devfs.
 2023-07-10 23:17:14 +03:00
Bananymous f88b9ae4f2 BAN: Add iterators to HashMap 2023-07-10 23:16:41 +03:00
Bananymous 8cd91f5a6a Userspace: add basic 'touch' command 2023-07-10 16:38:15 +03:00
Bananymous f65e5f4190 tee: indent with tabs 2023-07-10 16:18:08 +03:00
Bananymous f521a98157 Userspace: Add basic tee command 2023-07-10 16:07:53 +03:00
Bananymous ee4ef6638c Kenrel: RamInode now implements truncate() 2023-07-10 16:07:09 +03:00
Bananymous 0910958c04 Kernel: OpenFileDescriptors can now store more than 8 bits of flags 2023-07-10 16:06:36 +03:00
Bananymous d6408bcf17 Kernel: add O_TRUNC 
this is not supported by anything yet
 2023-07-10 15:48:18 +03:00
Bananymous 178fc00905 Kernel: creat() mode now has to be access mode 
We provide the S_IFREG in creat
 2023-07-10 15:34:41 +03:00
Bananymous 89d4fa4d9b Kernel: Ext2 fill now return ENOTSUP on write 
We used to crash the kernel
 2023-07-10 15:34:25 +03:00
Bananymous 46e1419e70 Kernel: O_APPEND is now supported 2023-07-10 15:11:27 +03:00
Bananymous f7c4bc908e Kernel: open() and openat() now take mode as parameter 
O_CREAT now tries to create file if O_CREAT is specified
 2023-07-10 15:08:54 +03:00
Bananymous a0ecbed726 Kernel: You can now read/write to RamInodes 
RamFS should be stored on physical pages and not in kmalloc, but
that will be implemented later :)
 2023-07-10 14:09:35 +03:00
Bananymous 74fc0aa308 Kernel: Inode::create_file() now takes uid and gid as parameters 2023-07-10 13:32:10 +03:00
Bananymous d5f0448e48 Kernel: start work on ram file system 2023-07-10 13:26:14 +03:00
Bananymous 51e4b11890 LibC: add NAME_MAX to limits.h 
This is defined to 255 which is _XOPEN_NAME_MAX, smallest value
for XOPEN compliance
 2023-07-10 11:48:11 +03:00
Bananymous d713f252aa Kenrel: Fix inode comparison 
We should not compare rdevs
 2023-07-10 11:48:11 +03:00
Bananymous 5ec2d85081 Kernel: Inode rename directory functions 2023-07-10 11:48:11 +03:00
Bananymous 0d132ee518 Kernel: Mark Ext2 classes final 2023-07-10 11:48:11 +03:00
Bananymous fabbb9f531 BAN: RefPtr can be constructed from other types 2023-07-10 11:48:11 +03:00
Bananymous 80c8d52dc5 Kernel: add more functionality to PCI 2023-07-09 23:04:11 +03:00
Bananymous b6c4a2dbf1 Kernel: Edit lock scopes and make string copy able to fail 2023-07-07 23:12:19 +03:00
Bananymous a2f5ad7bed Kernel: Move open file descriptors to their own class 
This simplifies code a lot :)
 2023-07-07 23:11:37 +03:00
Bananymous a337f414fc LibC: limits.h now defined OPEN_MAX 2023-07-07 23:08:49 +03:00
Bananymous 404b3dd44c Shell: $(...) expansion works now :) 2023-07-06 23:22:57 +03:00
Bananymous d04b031e30 Shell: you can call Shell -c ... to invoke the shell as interpreter 2023-07-06 23:22:49 +03:00
Bananymous 07fec6e211 Kernel/LibC: add basic dup2 2023-07-06 23:17:54 +03:00
Bananymous 4cd72992c8 Kernel/LibC: Add basic pipe() syscall and command 
You can now create pipes :)
 2023-07-06 22:16:26 +03:00
Bananymous cdcb395640 LibC: add read() and write() to unistd 2023-07-06 22:15:55 +03:00
Bananymous 5a8eb51968 Kernel: TTY now unblocks semaphore after read 
This allows concurrent reads not fully reading the buffer not block
indefinately.
 2023-07-06 21:32:34 +03:00
Bananymous a74422281f Kernel: Add O_CLOEXEC 2023-07-06 20:00:33 +03:00
Bananymous a45f9ee76b Kernel: Remove spammy process/thread exit printing 2023-07-06 10:34:46 +03:00
Bananymous f19dc114d6 Userspace: Shell now has 'env' for printing environment 2023-07-06 10:32:43 +03:00
Bananymous d2aabb669b Userspace: Shell imporove 'time' command 2023-07-06 09:45:04 +03:00
Bananymous 9c3f4039a5 Userspace: Shell now has time builtin 2023-07-06 00:39:04 +03:00
Bananymous 1fb305fa45 Kernel/LibC: add clock_gettime() for CLOCK_MONOTONIC 
This gets the number of milliseconds since boot
 2023-07-06 00:38:29 +03:00
Bananymous 4086d7c3be Kernel: rework the whole PageTable structure 
We now have page table structure for kernel memory which is shared
between all processes.
 2023-07-05 23:41:35 +03:00
Bananymous 60fe5a656c LibC: Fix syscall SYS_READ and SYS_WRITE arguments 2023-06-19 10:38:29 +03:00
Bananymous 7d254c26bc Kernel: Rewrite and optimize DiskCache 
DiskCache now consists of PageCaches which are caches of contiguous
sectors. This allows the disk cache to be ordered and faster traversal.

We seem to have a problem somewhere during reading. The stack gets
corrupted.
 2023-06-19 10:31:47 +03:00
Bananymous 328d67f551 Userspace: u8sum fix error message 2023-06-19 10:31:23 +03:00
Bananymous 84ecf861cd Userspace: Shell now processes $ arguments 2023-06-19 01:39:24 +03:00
Bananymous 46a6daccfe Userspace: Shell argument parsing now appriciates quotes 2023-06-19 01:07:00 +03:00
Bananymous 3df3c37bad Userspace: Shell argument parse now results in BAN::String 2023-06-19 00:34:44 +03:00
Bananymous 191a24110a Userspace: Shell now sets SHELL environment variable 2023-06-18 23:35:51 +03:00
Bananymous 275a730485 LibELF: We use BAN::Vector<uint8_t> as elf storage 
This is made possible by the dynamic kmalloc
 2023-06-18 23:29:23 +03:00
Bananymous 9a7b2587af Kernel: kmalloc has now somewhat dynamic storage 
Allocations bigger than PAGE_SIZE and those not forced to be identity
mapped are now done on a GeneralAllocator. This allows us to use kmalloc
for big allocations; bigger than the fixed 1 MiB storage.

This is still a hack and the whole kmalloc will have to be rewritten at
some point, but for now this does the job :D
 2023-06-18 23:27:00 +03:00
Bananymous 09c824b90e Kernel: Add GeneralAllocator::paddr_of 
Yoy can now query physical address of a virtual address for general
allocator allocation
 2023-06-18 23:25:51 +03:00
Bananymous 57e59d998f Kernel: Add enum for ISR name to number 2023-06-18 23:24:27 +03:00
Bananymous 44fb3945df Kernel: General allocator takes first valid vaddr as parameter 2023-06-17 22:23:34 +03:00
Bananymous 95c4e608de Kernel: Move print during boot 2023-06-12 23:45:36 +03:00
Bananymous b9603d9d23 BAN: Optional can be constructed inplace 2023-06-12 23:45:36 +03:00