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Author SHA1 Message Date
Bananymous 00f1f30a08 Kernel: Userspace sets the foreground process and Shell handles ^C 2023-07-28 18:10:36 +03:00
Bananymous a5813f9ba5 Kernel: TTY now sends SIGINT on ^C to foreground process 2023-07-28 18:10:09 +03:00
Bananymous 5652af3384 Kernel: Mark reading section from StorageDevice as terminate critical 2023-07-28 18:09:35 +03:00
Bananymous 22cd9af8cc Kernel: Restructure process and thread termination 
When we want to kill a process, we mark its threads as Terminating
or Terminated. If the thread is in critical section that has to be
finished, it will be in Terminating state until done. Once Scheduler
is trying to execute Terminated thread it will instead delete it.

Once processes last thread is marked Terminated, the processes will
turn it into a cleanup thread, that will allow blocks and memory
cleanup to be done.
 2023-07-28 18:06:20 +03:00
Bananymous a9cf9bceef Kernel: Rewrite DiskCache 
We now cache only clean pages since I don't want to think about
syncing the disk later.
 2023-07-27 22:22:39 +03:00
Bananymous 6c0f864a6e 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 e4509d9482 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 0f23e1f0f4 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 642a6aa4ad Kernel: Process::exit() unblocks the whole lock before blocking 2023-07-24 22:29:59 +03:00
Bananymous 432c296b7b 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 b576d373c4 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 522aa8e762 Kernel: add Thread::queue_signal() 2023-07-24 22:26:10 +03:00
Bananymous 146802fa4c Kernel: Scheduler can now block threads based on tid 2023-07-24 22:24:21 +03:00
Bananymous cc8af25d73 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 f5f4bf58ad Kernel: add is_tty() to inode 2023-07-24 22:19:59 +03:00
Bananymous 3784da0d18 Kernel: you can now ask process if it is userspace process 2023-07-23 18:54:10 +03:00
Bananymous 9eb72f4392 Kernel: OpenFileDesctiptor can now return inode of fd 2023-07-23 18:52:33 +03:00
Bananymous f7bf6d5e62 Kernel: Change signal kernel API 
return rsp and rip are now stored per thread
 2023-07-23 18:33:10 +03:00
Bananymous adb14ba373 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 7391d91317 Kernel/LibC: add SYS_SIGNAL/signal() 2023-07-21 20:08:13 +03:00
Bananymous 2149cec29f Kernel: Make signals more POSIX 2023-07-21 20:01:12 +03:00
Bananymous ad756c36fc Kernel/LibC: Add SYS_KILL/kill() 2023-07-21 19:27:38 +03:00
Bananymous b56316e9da Kernel: Scheduler now sends queued signals 2023-07-21 19:27:10 +03:00
Bananymous a989c44211 Kernel: Make signals thread specific 2023-07-21 19:00:59 +03:00
Bananymous 217e5f81cc Kernel: add default signal actions 2023-07-21 18:02:35 +03:00
Bananymous 5f2549b198 BuildSystem: Strip kernel. We will add the map once we use it 2023-07-21 15:47:31 +03:00
Bananymous dcd4d0daeb 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 faf4220b38 Kernel: kernel memory takes now full pml4e 
This allows flags to work properly
 2023-07-21 13:47:05 +03:00
Bananymous 193ddaa2f6 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 46eb27883a Kernel: Don't map kernel executable memory as writable 2023-07-21 11:17:39 +03:00
Bananymous 2db7cdb71e Kernel: Syscalls now get the interrupt stack 2023-07-21 11:04:16 +03:00
Bananymous 5411c5aa4a BAN: Fix function call in Optional 2023-07-21 10:57:46 +03:00
Bananymous f8a1a10897 Kernel: add NullDevice to /dev/null 2023-07-20 00:06:22 +03:00
Bananymous adbe13938e Kernel: move Device.h to its own directory 2023-07-19 23:55:38 +03:00
Bananymous 4d5b14753d Kernel: cleanup sys_exec() 
We now scope everyting so desctructors get called
 2023-07-19 23:20:39 +03:00
Bananymous ba9fa00947 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 98cedf155c Kernel: FixedWidthAllocator creation can now fail 2023-07-19 18:07:24 +03:00
Bananymous 88e3998664 Kernel: VirtualRange creation can fail 2023-07-19 17:56:26 +03:00
Bananymous c0c0bbc1bf Kernel: SYS_FORK can now fail instead of panicing on error 2023-07-19 17:47:12 +03:00
Bananymous 650e1b4fc5 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 6c1ada8d0a Kernel: Enable global bit on kernel pages 2023-07-13 15:23:25 +03:00
Bananymous 7d00c2670f Kernel: Support execute disable bit 
We will now map executable memory explicitly as executable.
 2023-07-13 14:28:53 +03:00
Bananymous bca7e9a1e8 Kernel: CPUID can detect wether cpu supports nxe bit 2023-07-13 14:24:58 +03:00
Bananymous 3748f0304f Kernel: Fix multiple bugs with terminal 2023-07-13 13:09:52 +03:00
Bananymous 2576bdbd14 Kernel: Fix ATA disk and partition numbering 2023-07-13 12:12:47 +03:00
Bananymous e341a36287 Init: Use the new pwd.h api for user parsing 2023-07-13 12:01:41 +03:00
Bananymous bba09a3cd0 LibC: add getpwname() and getpwuid() 2023-07-13 12:01:16 +03:00
Bananymous 985df3532b LibC: implement endpwent(), getpwent() and setpwent() 2023-07-13 11:22:09 +03:00
Bananymous 72041a52e8 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 891144dac1 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 41e7b53903 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 6b0920e8c0 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 4285729d5c 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 a9c10d0751 Base: add empty directories with .gitkeep to base/ 2023-07-11 08:02:28 +03:00
Bananymous 74c79c7eff 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 9174a89971 BAN: Add iterators to HashMap 2023-07-10 23:16:41 +03:00
Bananymous 5c94a583bc Userspace: add basic 'touch' command 2023-07-10 16:38:15 +03:00
Bananymous 6e1fc2766f tee: indent with tabs 2023-07-10 16:18:08 +03:00
Bananymous d3bb00cb55 Userspace: Add basic tee command 2023-07-10 16:07:53 +03:00
Bananymous 5a5656b2d3 Kenrel: RamInode now implements truncate() 2023-07-10 16:07:09 +03:00
Bananymous 1a1e584cba Kernel: OpenFileDescriptors can now store more than 8 bits of flags 2023-07-10 16:06:36 +03:00
Bananymous 65fa05f998 Kernel: add O_TRUNC 
this is not supported by anything yet
 2023-07-10 15:48:18 +03:00
Bananymous 2276fc95b8 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 1e173c178d Kernel: Ext2 fill now return ENOTSUP on write 
We used to crash the kernel
 2023-07-10 15:34:25 +03:00
Bananymous 773747cf9c Kernel: O_APPEND is now supported 2023-07-10 15:11:27 +03:00
Bananymous 4972284dde 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 45789fda08 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 3b5bc63d1b Kernel: Inode::create_file() now takes uid and gid as parameters 2023-07-10 13:32:10 +03:00
Bananymous f1089e2b8a Kernel: start work on ram file system 2023-07-10 13:26:14 +03:00
Bananymous 6d93c1eb92 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 363c325c79 Kenrel: Fix inode comparison 
We should not compare rdevs
 2023-07-10 11:48:11 +03:00
Bananymous 583504ebe0 Kernel: Inode rename directory functions 2023-07-10 11:48:11 +03:00
Bananymous b354b77f8b Kernel: Mark Ext2 classes final 2023-07-10 11:48:11 +03:00
Bananymous 74af46cb4a BAN: RefPtr can be constructed from other types 2023-07-10 11:48:11 +03:00
Bananymous 19dab08275 Kernel: add more functionality to PCI 2023-07-09 23:04:11 +03:00
Bananymous 3840fbf957 Kernel: Edit lock scopes and make string copy able to fail 2023-07-07 23:12:19 +03:00
Bananymous 78c091f7f8 Kernel: Move open file descriptors to their own class 
This simplifies code a lot :)
 2023-07-07 23:11:37 +03:00
Bananymous 274ecbba78 LibC: limits.h now defined OPEN_MAX 2023-07-07 23:08:49 +03:00
Bananymous 683c2a68cd Shell: $(...) expansion works now :) 2023-07-06 23:22:57 +03:00
Bananymous ad98181069 Shell: you can call Shell -c ... to invoke the shell as interpreter 2023-07-06 23:22:49 +03:00
Bananymous a549336530 Kernel/LibC: add basic dup2 2023-07-06 23:17:54 +03:00
Bananymous 4eb95c963d Kernel/LibC: Add basic pipe() syscall and command 
You can now create pipes :)
 2023-07-06 22:16:26 +03:00
Bananymous 22caacd2a9 LibC: add read() and write() to unistd 2023-07-06 22:15:55 +03:00
Bananymous af30d537da 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 f1bd26fb92 Kernel: Add O_CLOEXEC 2023-07-06 20:00:33 +03:00
Bananymous 5c6bbcb62f Kernel: Remove spammy process/thread exit printing 2023-07-06 10:34:46 +03:00
Bananymous 21bd87bb07 Userspace: Shell now has 'env' for printing environment 2023-07-06 10:32:43 +03:00
Bananymous 79450df04c Userspace: Shell imporove 'time' command 2023-07-06 09:45:04 +03:00
Bananymous 7f8b7b811e Userspace: Shell now has time builtin 2023-07-06 00:39:04 +03:00
Bananymous 3c068aa0ae 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 86df258365 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 d99e704728 LibC: Fix syscall SYS_READ and SYS_WRITE arguments 2023-06-19 10:38:29 +03:00
Bananymous 0d620f3e0f 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 4dce0f9074 Userspace: u8sum fix error message 2023-06-19 10:31:23 +03:00
Bananymous 54f89cba33 Userspace: Shell now processes $ arguments 2023-06-19 01:39:24 +03:00
Bananymous de88f60d1a Userspace: Shell argument parsing now appriciates quotes 2023-06-19 01:07:00 +03:00
Bananymous f7060970e6 Userspace: Shell argument parse now results in BAN::String 2023-06-19 00:34:44 +03:00
Bananymous e7a98ac6cc Userspace: Shell now sets SHELL environment variable 2023-06-18 23:35:51 +03:00
Bananymous 10544db52e 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 5e123031aa 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