ce6ec3585c
Kernel, libc: Add ENOSYS
...
This error is returned by the kernel/C Library when an attempt is made to use a system call that doesn't exist.
2022-10-08 14:18:25 +02:00
ac72d64490
Make (v)fprintf alias to (v)printf instead of throwing an error
...
We don't have files :) (yet)
But if someone wants to fprintf(stderr), then fine. Do it. Except it won't be any different from fprintf(stdout) or printf().
2022-10-08 13:45:57 +02:00
a086ec514b
Remove the Superblock.h file which has never been used.
...
This file was included for a future Ext2 implementation. It should be included when said Ext2 implementation is actually started.
2022-10-08 13:28:30 +02:00
9b778254f1
Merge branch perror into main
...
Reviewed-on: #6
2022-10-08 10:46:02 +00:00
e76d903642
apps: make memeater use perror
2022-10-08 12:42:46 +02:00
ee7558a9b7
Add a perror() function
2022-10-08 12:42:25 +02:00
d6f45c284e
Merge branch strerror into main
...
Reviewed-on: #5
2022-10-08 10:32:12 +00:00
21e8ea1486
apps: make memeater use strerror()
2022-10-08 12:29:19 +02:00
8f0b6d80b2
libc: Implement strerror()
2022-10-08 12:29:06 +02:00
71e15e94af
Kernel, libc and userspace: Add basic errno support.
...
Kernel: Add an errno.h header with definitions for each header,
and return those, negated, from syscalls when there is an error.
mmap() returns an invalid address with errno encoded, instead of
returning a negated errno; this address is encoded as ffffffffffffffEE
where EE is errno in hex.
libc: make syscall() return -1 and set errno on error, instead of
returning the raw return value of the system call. Also, add mmap()
and munmap() wrappers in sys/mman.h :).
userspace: make the memeater program show the value of errno
when allocating memory fails.
Things to improve: add perror() and strerror() to make the errno
experience even better! >.<
2022-10-08 12:06:09 +02:00
ad115e9bab
libc: Correct include guards
2022-10-08 11:32:01 +02:00
1f655fabe2
The beginnings of Moon 0.10
...
Right now the kernel is the only thing with a version number, the user apps just fetch it from the kernel using the sys_getversion() syscall
2022-10-07 20:33:00 +02:00
8bf1aac961
Finally, add a README.
...
It's perhaps too long, but that's better than it being too short.
2022-10-07 20:16:44 +02:00
028a1b1a3c
libc: Enable even more warnings
2022-10-07 18:19:06 +02:00
b7ee746da3
Kernel: Enable even more warnings
2022-10-07 18:10:20 +02:00
dc389da74e
Implement an ELFImage struct
...
This struct allows us to keep track of what memory is used by the loaded executable. For some reason, freeing this memory when the task exits triggers a kernel page fault, so I'm not doing that right now.
2022-10-07 17:54:05 +02:00
b2d43d66c4
Remove boot/font.psf from the initrd
...
This font file is not being used, since we are using an embedded font and that seems to work (should be loaded from the initrd in the future though)
2022-10-07 15:38:08 +02:00
13f69bc4fc
Add LICENSE
...
I knew from the beginning this should be BSD-2 (my favorite license at the moment), but hadn't made a license file yet. Here it is!
2022-10-07 13:27:01 +00:00
1ee5deb0f0
Remove unnecessary include
2022-10-06 19:51:16 +02:00
3fd24133e9
I'm so dumb
2022-10-06 18:04:32 +02:00
4a50a9e027
that was a dumb bug to fix
2022-10-06 18:02:57 +02:00
594d79143e
Kernel: enable -Wconversion
2022-10-06 17:13:34 +02:00
952d8fa294
Be more strict with warnings
2022-10-05 17:34:22 +02:00
560b0a1705
libc: Rename the _ folder to bits, as used internally by libraries
2022-10-04 19:11:54 +02:00
48b858af5a
libc: Add strncpy and strncat, and deprecate strcpy and strcat (which, since we're building with -Werror, is an instant ban from using these functions)
2022-10-04 19:08:59 +02:00
a050ed9133
libc: add an internal macros.h header with headers to make attributes less verbose
2022-10-04 19:06:56 +02:00
c6ed8d2abb
libc: remove duplicate declaration of strcpy
2022-10-04 18:59:13 +02:00
3bfdad7a75
Kernel: Remove outdated rule in Makefile
2022-10-04 18:52:02 +02:00
25928a2a8d
Kernel: Always build config.cpp, even when it's not modified
2022-10-04 18:46:10 +02:00
7a998dda4d
Kernel: Do not stop interrupts by default in the interrupt handler
...
I always knew you can choose if interrupts are enabled for a specific ISR in the IDT entry, but at some moment there was a bug and I thought maybe that fixed it. Now reverting that doesn't break anything, so... let's do it :)
2022-10-04 18:45:46 +02:00
8f310dd307
PMM: Map the page bitmap to kernel heap once the PMM and VMM are both initialized
2022-10-04 18:36:09 +02:00
5d8b825659
Add a few example apps/demos in C, and make the kernel choose a random one to demonstrate every boot
2022-10-03 21:24:38 +02:00
885e39f60f
libc: fix printf to actually print correct more-than-one-digit numbers (hint: the bugfix was a very stupid one)
2022-10-03 20:30:12 +02:00
cb60e418b2
Add vprintf, (v)sprintf and (v)snprintf to libc + move the non v-printfs to stdio.cpp, since they can now call their v-variants and thus don't depend on internal_printf
2022-10-03 19:59:33 +02:00
9420484c9b
Do not use __builtin_alloca in puts (could overflow the stack for large strings)
2022-10-03 19:05:04 +02:00
34aa953dbc
Add printf() and puts(), quite primitive, looks like hex printing isn't there yet...
2022-10-03 19:00:10 +02:00
fc9868819f
Moon 0.9-dev
2022-10-02 21:19:49 +02:00
dae2ff8d50
Add mmap and munmap syscalls, and thus, add malloc and free to libc!! (yet again, thanks to the wonderful liballoc)
2022-10-02 20:45:04 +02:00
ee31a3458d
Fix setup-binutils and setup-gcc
2022-10-02 19:58:52 +02:00
db9e1ba17c
Add a memclr() SSE-optimized function
2022-10-02 19:13:33 +02:00
38470724dc
Scheduler: adjust SSE saving conditions
2022-10-02 19:13:21 +02:00
1ecd24f5d6
Kernel: Add SSE support (enable SSE on boot and save context (user tasks only) on task switch)
2022-10-02 18:53:54 +02:00
d2f9e17c86
Use __luna_abort in init
2022-10-02 18:16:27 +02:00
ae95a528f2
Make function stubs in libc loudly abort instead of silently failing
2022-10-02 18:10:53 +02:00
8e6741ebd6
Rename SYS_version to SYS_getversion
2022-10-02 17:25:56 +02:00
c6b044acab
ELFLoader: show permissions of loadable segment
2022-10-02 17:10:24 +02:00
3c6c94adda
Add a proper syscall() function to unistd.h
2022-10-02 17:02:15 +02:00
83d23ce8fe
Correct the syscall ABI
2022-10-02 17:01:46 +02:00
6bacded5cf
Update build system
2022-10-02 17:01:30 +02:00
e483f6d1e6
Adjust build scripts to install LibC headers
2022-10-02 12:47:50 +02:00
