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158 Commits

Author SHA1 Message Date
Bananymous 86f58f60cb LibC: implement setenv, unsetenv, putenv 2023-06-05 22:51:02 +03:00
Bananymous 064ce568c2 Kernel: add basic support for environment variables 
exec functions will search files from PATH
 2023-06-05 22:51:02 +03:00
Bananymous b0e9ab0519 Kernel/LibC: pass environ pointer to process 2023-06-05 21:12:08 +03:00
Bananymous 480842a203 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 9d64dbd5c2 Kernel/LibC: add SYS_STAT and stat(), lstat() 2023-06-05 14:37:14 +03:00
Bananymous cbb9f47ee5 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 4f84faf392 LibC: printf string persision works now 2023-06-03 15:07:02 +03:00
Bananymous 3c3c7826ef 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 2207357b93 LibC: add __cxa_at_exit() for libc 2023-06-02 17:50:55 +03:00
Bananymous 3a69768eb0 LibC: remove select() declaration 
This already comes from sys/select.h
 2023-06-02 17:29:09 +03:00
Bananymous afb29ff3ec LibC: rename [[noreturn]] to __attribute__((__noreturn__)) 
This compiles with C compiler
 2023-06-02 17:28:36 +03:00
Bananymous e6f0f891a6 LibC: stdlib.h doesn't seem to typedef wchar_t without __need_wchar_t 2023-06-02 17:27:31 +03:00
Bananymous 36e5aa4683 LibC: fix INFINITY definition typo 2023-06-02 17:27:14 +03:00
Bananymous 7738050105 LibC: fix DIR typedef for C code 2023-06-02 17:26:38 +03:00
Bananymous 4bf11ec349 LibC: complex.h undefs I before defining it 2023-06-02 17:13:09 +03:00
Bananymous d821012eed LibC: mbstate_t is empty struct 2023-06-02 17:10:29 +03:00
Bananymous 35c6edd989 LibC: fix sig_atomic_t definition 2023-06-02 17:08:43 +03:00
Bananymous cb359a05dc 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 0acab11620 LibC: add execl 2023-05-31 22:36:26 +03:00
Bananymous ab61b49aca Kernel: Add SYS_EXEC syscall 2023-05-31 20:57:33 +03:00
Bananymous 341f7e41e5 LibC: Fix some headers to make gcc build again 2023-05-30 01:17:45 +03:00
Bananymous 7151bb86a8 Kernel/LibC: opening standard files is done in libc 2023-05-29 20:21:19 +03:00
Bananymous 2a34391b71 LibC: open() now just returns syscall(SYS_OPEN, ...) 
errno is handled in syscall()
 2023-05-29 20:19:17 +03:00
Bananymous 0c316ebfb2 Kernel: Add SYS_SLEEP 2023-05-28 22:34:48 +03:00
Bananymous 6fdbe6f9c2 Kernel: Add bareboness fork() function 2023-05-28 18:08:49 +03:00
Bananymous 481c8406f3 LibC: fputs uses fputc instead of putc 2023-05-28 17:48:34 +03:00
Bananymous f79250c4d4 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 9e0abbc2f0 Kernel: Add bareboness possibility to set termios 2023-05-26 22:31:21 +03:00
Bananymous 4a4a3bf184 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 d82c6c2337 LibC: fix bugs with printf 2023-05-15 22:47:08 +03:00
Bananymous 1a0fdc5a44 LibC: printf now prints 0 as integer 2023-05-11 18:20:37 +03:00
Bananymous 53f4b5a9da LibC: add function declarations to sys/stat.h 2023-05-11 15:11:33 +03:00
Bananymous 1d4a6c3a42 LibC: add function declarations to dirent.h 2023-05-11 01:42:52 +03:00
Bananymous 40083e4aa1 LibC: add definitions to math.h 2023-05-11 01:40:42 +03:00
Bananymous bd929bff07 LibC: add defines in stdio.h 2023-05-11 01:39:16 +03:00
Bananymous cd4a0530fa LibC: add function declarations to unistd.h 2023-05-11 00:34:03 +03:00
Bananymous 273fdd2235 LibC: add function declarations to string.h 2023-05-11 00:34:03 +03:00
Bananymous b20f2e8d31 LibC: add function declarations to math.h 2023-05-11 00:34:03 +03:00
Bananymous e756cde2b1 LibC: define all errnos and strerror{name,desk}_np 2023-05-11 00:34:03 +03:00
Bananymous de18d3e64d LibC: add function declarations to time.h 2023-05-11 00:34:03 +03:00
Bananymous 441999ba9f LibC: add more types to sys/types.h 2023-05-11 00:33:53 +03:00
Bananymous dd046b1ace LibC: Add dummy signal.h 2023-05-10 23:20:27 +03:00
Bananymous 926aa238ab LibC: add toupper, tolower in ctype.h 2023-05-10 23:13:56 +03:00
Bananymous 01fa521a03 LibC: Add dummy setjmp.h 2023-05-10 23:00:53 +03:00
Bananymous f31da19266 LibC: Add dummy locale.h 2023-05-10 22:58:07 +03:00
Bananymous 48edc38817 LibC: implement printf conversions e, E, f, F 2023-05-10 22:36:03 +03:00
Bananymous ac12132ac0 LibC: add math.h with floorl 2023-05-10 22:35:42 +03:00
Bananymous 67005a80be 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 f43bfcb398 LibC: add better error string support 2023-05-10 02:22:31 +03:00
Bananymous d5ce4c9d2c 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 1cf7ef3de6 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 5248a3fe48 LibC: Fix bug in *printf 2023-05-09 20:30:12 +03:00
Bananymous c2ad76fe4f BAN: Error uses 64 bit error codes 2023-05-07 02:09:52 +03:00
Bananymous 10d9b72da1 LibC: syscall() now returns -1 on error and updates errno 2023-05-07 01:51:39 +03:00
Bananymous 2fe9af7165 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 ff5bcd4416 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 5bfcf6783e LibC: add proper stdlib.h header 
Function declarations taken from the posix specifications
 2023-04-27 15:14:03 +03:00
Bananymous 94f8a657f1 LibC: add link to posix stdio.h 2023-04-27 14:16:25 +03:00
Bananymous 0718bea5a1 LibC: Fix some bugs 2023-04-25 13:27:01 +03:00
Bananymous 7b19d6e479 LibC: fread() now does a single syscall 2023-04-25 12:38:08 +03:00
Bananymous b15deb420f LibC: Write mostly functioning stdio 2023-04-23 14:32:37 +03:00
Bananymous c15f031c3f LibC: puts() now just calls syscall(SYS_WRITE, ...) 2023-04-22 15:29:38 +03:00
Bananymous 1b4c744974 LibC: syscalls have now proper argument order 2023-04-22 15:29:15 +03:00
Bananymous 702016a6e3 LibC: exit() calls _fini() 2023-04-19 00:42:00 +03:00
Bananymous fe87c08a02 LibC: add needed stubs to build executables with our compiler 2023-04-12 17:53:02 +03:00
Bananymous 8d6db168d6 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 c660df14ec 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 9f977488fa 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 ac0b22f9b9 LibC: remove old unused files 2023-04-07 02:26:44 +03:00
Bananymous 5db5ff069a BuildSystem: you can now build the toolchain with cmake 2023-04-06 00:23:02 +03:00
Bananymous e760bafeeb LibC: add stubs for a lot of functions 2023-04-05 23:58:40 +03:00
Bananymous 12351d5cb6 LibC: sys/types uses 'typedef' instead of 'using' 2023-04-05 15:03:24 +03:00
Bananymous 22c72d8c70 LibC: Add errno ENOTTY 2023-04-05 02:47:37 +03:00
Bananymous fe10ea85db LibC: Add unistd.h with STD{IN,OUT,ERR}_FILENO definitions 2023-04-05 00:59:48 +03:00
Bananymous 914f718767 LibC: add device macros in sys/sysmacros.h 2023-04-03 10:59:15 +03:00
Bananymous e49d3c7bfe 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 c5b83074ac LibC: Combine string.h functions definitions to single file 2023-04-02 00:00:29 +03:00
Bananymous f4db246658 LibC: add ENOBUFS errno 2023-03-29 10:58:25 +03:00
Bananymous a011c0384f LibC: add dirent.h 2023-03-25 02:08:33 +02:00
Bananymous 0d356c5bbc LibC: Add stat structure 2023-03-24 18:08:22 +02:00
Bananymous 8ac1ae1574 LibC: add more typedefs to sys/types 2023-03-23 19:24:12 +02:00
Bananymous 5831c72aad LibC: add errno NAMETOOLONG 2023-03-23 14:48:42 +02:00
Bananymous 0c582b4490 LibC: add errno ENOTEMPTY 2023-03-19 05:43:40 +02:00
Bananymous 61caf566fc 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