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268 Commits

Author SHA1 Message Date
Bananymous 9288537949 LibC: gid_t and id_t are now signed types 
I have no idea why I had made them unisigned
 2023-06-11 22:37:00 +03:00
Bananymous 78536f9678 Kernel/Userspace: Add basic init process 
This process parses /etc/passwd and promps login screen.
When an username is entered, it will launch that users shell
 2023-06-11 22:37:00 +03:00
Bananymous 297141f321 LibC: add strchrnul() 
this is a gnu libc extension
 2023-06-11 20:18:03 +03:00
Bananymous 83a6e6f637 LibC: Reorder some syscalls 2023-06-11 03:29:22 +03:00
Bananymous 64890bb640 Kernel: Add SYS_OPENAT 2023-06-11 03:29:22 +03:00
Bananymous 68ec443e07 LibC: implement close 2023-06-11 03:29:22 +03:00
Bananymous aa86125f2b Kernel: Implement SYS_FSTAT 2023-06-11 03:29:22 +03:00
Bananymous c423164066 LibC: Implement basic dirent functionality 
We don't currently support seeking
 2023-06-11 03:29:22 +03:00
Bananymous eae6119039 Kernel: Add syscall for reading directory entries 2023-06-11 00:18:08 +03:00
Bananymous 30f81e1696 LibC: add missing O_EXEC and O_SEARCH 2023-06-11 00:17:18 +03:00
Bananymous 24993f6020 LibC: implement setenv, unsetenv, putenv 2023-06-05 22:51:02 +03:00
Bananymous 55ea5c5488 Kernel: add basic support for environment variables 
exec functions will search files from PATH
 2023-06-05 22:51:02 +03:00
Bananymous 896b919c9d Kernel/LibC: pass environ pointer to process 2023-06-05 21:12:08 +03:00
Bananymous a7dc7ecb90 LibC: abort now prints 'abort()' and exits 
we used to call assert in abort which then recursively called
abort again.
 2023-06-05 18:23:19 +03:00
Bananymous d1ad38c8d4 Kernel/LibC: add SYS_STAT and stat(), lstat() 2023-06-05 14:37:14 +03:00
Bananymous 40055f023c LibC: add wait and waitpid 
Note that wait() doesn't work since only waiting for specified
pid is supported. wait() will just return -1 and set errno to
ECHILD.
 2023-06-04 18:00:52 +03:00
Bananymous 3a79880e69 LibC: printf string persision works now 2023-06-03 15:07:02 +03:00
Bananymous 88e92eec9e LibC: Add simple definition for realloc 
The syscall just crashes the kernel currently. I will implement
this when needed
 2023-06-02 17:56:13 +03:00
Bananymous a41b8e416f LibC: add __cxa_at_exit() for libc 2023-06-02 17:50:55 +03:00
Bananymous 8716c8baf4 LibC: remove select() declaration 
This already comes from sys/select.h
 2023-06-02 17:29:09 +03:00
Bananymous 2d67a7153b LibC: rename [[noreturn]] to __attribute__((__noreturn__)) 
This compiles with C compiler
 2023-06-02 17:28:36 +03:00
Bananymous 3fcc7c6768 LibC: stdlib.h doesn't seem to typedef wchar_t without __need_wchar_t 2023-06-02 17:27:31 +03:00
Bananymous 5d2a062b36 LibC: fix INFINITY definition typo 2023-06-02 17:27:14 +03:00
Bananymous e517ff6b6d LibC: fix DIR typedef for C code 2023-06-02 17:26:38 +03:00
Bananymous 7296846a81 LibC: complex.h undefs I before defining it 2023-06-02 17:13:09 +03:00
Bananymous 6abcb0de9b LibC: mbstate_t is empty struct 2023-06-02 17:10:29 +03:00
Bananymous 40f9d9d9bc LibC: fix sig_atomic_t definition 2023-06-02 17:08:43 +03:00
Bananymous a378e59432 BuildSystem: link libraries when they change 
This also fixed the need for manual linkin on firt build
 2023-05-31 23:01:40 +03:00
Bananymous 0f412e570c LibC: add execl 2023-05-31 22:36:26 +03:00
Bananymous 24a190d1f7 Kernel: Add SYS_EXEC syscall 2023-05-31 20:57:33 +03:00
Bananymous e8f820ef8d LibC: Fix some headers to make gcc build again 2023-05-30 01:17:45 +03:00
Bananymous fb17af4844 Kernel/LibC: opening standard files is done in libc 2023-05-29 20:21:19 +03:00
Bananymous 9a8512887f LibC: open() now just returns syscall(SYS_OPEN, ...) 
errno is handled in syscall()
 2023-05-29 20:19:17 +03:00
Bananymous 998999a755 Kernel: Add SYS_SLEEP 2023-05-28 22:34:48 +03:00
Bananymous f2d767b799 Kernel: Add bareboness fork() function 2023-05-28 18:08:49 +03:00
Bananymous dd4973ac35 LibC: fputs uses fputc instead of putc 2023-05-28 17:48:34 +03:00
Bananymous faf14b880e LibC: Rewrite all the headers. 
We now have more or less posix issue 2018 conforming libc headers.

This was a really time consuming and boring operation but it had to
be done.

Now we get to actually start implementing libc :)
 2023-05-26 22:31:21 +03:00
Bananymous 1658e925f2 Kernel: Add bareboness possibility to set termios 2023-05-26 22:31:21 +03:00
Bananymous 80d9f6131b Kernel/LibC: move file offset back to kernel 
This makes keeping track of offsets easier and more proper
 2023-05-26 22:31:21 +03:00
Bananymous 8ec675cca6 LibC: fix bugs with printf 2023-05-15 22:47:08 +03:00
Bananymous 7543fadfa8 LibC: printf now prints 0 as integer 2023-05-11 18:20:37 +03:00
Bananymous 729ff267d7 LibC: add function declarations to sys/stat.h 2023-05-11 15:11:33 +03:00
Bananymous d9be14e1fb LibC: add function declarations to dirent.h 2023-05-11 01:42:52 +03:00
Bananymous 8a9f9b07e7 LibC: add definitions to math.h 2023-05-11 01:40:42 +03:00
Bananymous c989a01913 LibC: add defines in stdio.h 2023-05-11 01:39:16 +03:00
Bananymous 5188efcc57 LibC: add function declarations to unistd.h 2023-05-11 00:34:03 +03:00
Bananymous c05a5b796b LibC: add function declarations to string.h 2023-05-11 00:34:03 +03:00
Bananymous f0058e67c2 LibC: add function declarations to math.h 2023-05-11 00:34:03 +03:00
Bananymous 508d6311de LibC: define all errnos and strerror{name,desk}_np 2023-05-11 00:34:03 +03:00
Bananymous 7c6bf40d0d LibC: add function declarations to time.h 2023-05-11 00:34:03 +03:00
Bananymous a74343c589 LibC: add more types to sys/types.h 2023-05-11 00:33:53 +03:00
Bananymous d188576ef3 LibC: Add dummy signal.h 2023-05-10 23:20:27 +03:00
Bananymous d922c5e1d0 LibC: add toupper, tolower in ctype.h 2023-05-10 23:13:56 +03:00
Bananymous 0adf24fcad LibC: Add dummy setjmp.h 2023-05-10 23:00:53 +03:00
Bananymous 80e13965d9 LibC: Add dummy locale.h 2023-05-10 22:58:07 +03:00
Bananymous 36707ec87a LibC: implement printf conversions e, E, f, F 2023-05-10 22:36:03 +03:00
Bananymous 5f89f083a2 LibC: add math.h with floorl 2023-05-10 22:35:42 +03:00
Bananymous cae0a1cc60 LibC: add working f modifier to printf 
This is implementation will write out of bounds if the conversion
takes more than 1024 characters (either super large number or very
big percision).

Also we dont handle NaN and infinity cases
 2023-05-10 15:43:42 +03:00
Bananymous 480d92fce5 LibC: add better error string support 2023-05-10 02:22:31 +03:00
Bananymous 49fe3d0d4f LibC: add probably functional *printf 
I wrote a general printf function that takes an putc function
pointer. We can use this to implement all the printf family
functions. I haven't done thorough testing with this, but it seems
to be functional for the most part
 2023-05-10 02:00:28 +03:00
Bananymous ff2e2937a5 Kernel: Remove offset from OpenFileDescriptor 
This is now handled on the libc side. There might be reasons to
have it in kernel side, but for simplicity's sake I'm moving it
to libc for now :)
 2023-05-09 20:31:22 +03:00
Bananymous 0cc1fb53d5 LibC: Fix bug in *printf 2023-05-09 20:30:12 +03:00
Bananymous 05046d6e93 BAN: Error uses 64 bit error codes 2023-05-07 02:09:52 +03:00
Bananymous 054c5450df LibC: syscall() now returns -1 on error and updates errno 2023-05-07 01:51:39 +03:00
Bananymous 12e42f40c5 Kernel/LibC: add free function for FixedWidthAllocator 
I have to rework the syscall API and allocators in process. For
now this works well enough :)
 2023-05-07 01:21:50 +03:00
Bananymous bcfd838131 Kernel: Add basic fixed width allocator for userspace 
We have to move process stacks to the general heap and maybe map
kernel to higher half.
 2023-05-06 19:58:08 +03:00
Bananymous e1a6e7c3ac LibC: add proper stdlib.h header 
Function declarations taken from the posix specifications
 2023-04-27 15:14:03 +03:00
Bananymous 3537d53d5c LibC: add link to posix stdio.h 2023-04-27 14:16:25 +03:00
Bananymous 1d42b26fce LibC: Fix some bugs 2023-04-25 13:27:01 +03:00
Bananymous 79812b34b0 LibC: fread() now does a single syscall 2023-04-25 12:38:08 +03:00
Bananymous cd74b2167d LibC: Write mostly functioning stdio 2023-04-23 14:32:37 +03:00
Bananymous ff8c0086e2 LibC: puts() now just calls syscall(SYS_WRITE, ...) 2023-04-22 15:29:38 +03:00
Bananymous dc1b7cf08f LibC: syscalls have now proper argument order 2023-04-22 15:29:15 +03:00
Bananymous d9b7747fc5 LibC: exit() calls _fini() 2023-04-19 00:42:00 +03:00
Bananymous 3f9d6f0311 LibC: add needed stubs to build executables with our compiler 2023-04-12 17:53:02 +03:00
Bananymous aa2aee684b Kernel: remove message from BAN::Error 
We don't store the error message anymore in BAN::Error.
Instead we store a error code that can be mapped into a string.
This allows BAN::Error to only take 4 bytes instead of 128.

We should also make some kernel initialization just panic instead
of returning errors since they are required for succesfull boot
anyway.
 2023-04-11 23:25:21 +03:00
Bananymous 781cc78a1f BuildSystem: Fix header copying to sysroot 
We used to copy all headers everytime to sysroot which caused
rebuild of the whole os. Now we use the cmake command
'copy_directory_if_different' which seemed to fix this issue :)
 2023-04-10 21:07:25 +03:00
Bananymous 25ddc24754 BuildSystem: cmake can now build out libc 
I can't seem to get libc++ build to work...
 2023-04-10 21:07:25 +03:00
Bananymous 989f9ec5fe LibC: remove old unused files 2023-04-07 02:26:44 +03:00
Bananymous 8a8793fd2d BuildSystem: you can now build the toolchain with cmake 2023-04-06 00:23:02 +03:00
Bananymous a5830c5424 LibC: add stubs for a lot of functions 2023-04-05 23:58:40 +03:00
Bananymous b6896a6d85 LibC: sys/types uses 'typedef' instead of 'using' 2023-04-05 15:03:24 +03:00
Bananymous 67ff01e915 LibC: Add errno ENOTTY 2023-04-05 02:47:37 +03:00
Bananymous 63e863ad35 LibC: Add unistd.h with STD{IN,OUT,ERR}_FILENO definitions 2023-04-05 00:59:48 +03:00
Bananymous 86d777e2eb LibC: add device macros in sys/sysmacros.h 2023-04-03 10:59:15 +03:00
Bananymous 4c5176f751 BuildSystem: We are now using cmake instead of plain make 
I have been annoyed for a while since I had to build everything
when running the os since the buildsystem was really bad.

I wanted to rewrite the whole build system and changed to using cmake

:)
 2023-04-02 04:07:27 +03:00
Bananymous d71f1f24e4 LibC: Combine string.h functions definitions to single file 2023-04-02 00:00:29 +03:00
Bananymous cd0d10b64e LibC: add ENOBUFS errno 2023-03-29 10:58:25 +03:00
Bananymous 32c3aca52f LibC: add dirent.h 2023-03-25 02:08:33 +02:00
Bananymous 9fd17ef73c LibC: Add stat structure 2023-03-24 18:08:22 +02:00
Bananymous 1be8b2f514 LibC: add more typedefs to sys/types 2023-03-23 19:24:12 +02:00
Bananymous d6e4430692 LibC: add errno NAMETOOLONG 2023-03-23 14:48:42 +02:00
Bananymous cf2be54e8f LibC: add errno ENOTEMPTY 2023-03-19 05:43:40 +02:00
Bananymous 3ab62e83d3 LibC: add errno EEXISTS 2023-03-19 04:17:39 +02:00
Bananymous ceb53533be LibC: add fcntl.h with some defines 2023-03-17 21:18:41 +02:00
Bananymous e2707b9416 LibC: Add EBADF errno 2023-03-16 16:22:11 +02:00
Bananymous 4493c9bbe6 LibC: Add ENTOSUP errno 2023-03-16 16:03:51 +02:00
Bananymous 1b7625581d Kernel: Add basic concept of Processes 
We now create Shell as a process that has its own threads
 2023-03-16 12:17:04 +02:00
Bananymous 10ef3c6a54 LibC: add declarations for malloc and free 2023-03-04 02:59:48 +02:00
Bananymous 53ec66ff86 LibC: strerror now always uses a buffer to which it copies the string 2023-03-02 22:13:08 +02:00
Bananymous 52aa98ba25 Kernel+LibC: Add some errno codes 
Kernel now returns ENOMEM and other errnos, so we dont have to write
error messages
 2023-03-02 21:10:44 +02:00
Bananymous 5cd97e44e2 LibC: Add strcmp and strncmp 2023-02-23 15:57:33 +02:00
Bananymous 9b8de5025a All: rename every function from UpperCamelCase to snake_case 
This was a mess since I didn't know which to use but now I decided
to go with snake_case :)
 2023-02-01 21:05:44 +02:00
Bananymous b315fdc27f Kernel: Finally managed to get 64-bit working 
I had weird problems with interrupts but everything should work now
 2023-01-25 19:19:28 +02:00
Bananymous fd16c1cf58 LibC: Add is*() functions to libc 2023-01-16 20:05:51 +02:00
Bananymous 6b73547989 All: edit gcc flags 2023-01-13 00:04:15 +02:00
Bananymous efd8638a96 Kernel: Improve kernel panic message and rename it 'panic'->'Panic' 2023-01-09 21:57:03 +02:00
Bananymous f4b614aa61 LibC: Add some new functions 2022-12-13 00:51:57 +02:00
Bananymous ac2ba8bc56 LibC: Remove actual printing from putc() since we were panicing anyway 2022-12-10 00:30:00 +02:00
Bananymous c17f61611e Improve buildsystem by making build directory 
We now create build directory for kernel and libc so that source
directories are kept more clean.
 2022-12-03 18:17:37 +02:00
Bananymous 123382eace Fixes :) 2022-11-15 21:42:14 +02:00
Bananymous 35e21ca4ce Improve integer printing 2022-11-15 16:34:16 +02:00
Bananymous 9e933a5ec5 Add kernel panic function 2022-11-14 18:53:00 +02:00
Bananymous b185ed4fd3 Libc is now written in C++ 2022-11-14 00:31:24 +02:00
Bananymous a1a709974a Add %p to printf 2022-11-13 00:33:45 +02:00
Bananymous 5a3596170c Add strcpy and strncpy 2022-11-12 23:47:06 +02:00
Bananymous 7ad8189e24 Add somewhat functioning printf 2022-11-12 23:36:39 +02:00
Bananymous e6b4866ab0 Initial commit. We have a booting kernel 2022-11-12 21:04:47 +02:00