Commit Graph

81 Commits

Author SHA1 Message Date
8bf2904d74 libc: Implement a basic subset of dirent.h 2022-10-23 14:41:45 +02:00
32db366781 apps: Add a little ls utility that lists the files in /bin 2022-10-23 14:06:11 +02:00
06f9ffc184 libc: Add EXIT_SUCCESS, EXIT_FAILURE, RAND_MAX and BUFSIZ 2022-10-22 21:39:51 +02:00
26324259f2 uname: Use fgets() 2022-10-22 15:43:21 +02:00
a1a1157151 sh: update it 2022-10-22 15:09:09 +02:00
4aa979bd87 sh: remove duplicate code 2022-10-22 15:08:27 +02:00
189986d23f libc: Rename pstname() to pstatname()
To avoid confusion with ptsname().
2022-10-22 14:30:41 +02:00
727e227b09 apps: Add ps (uses pstat) 2022-10-22 14:26:59 +02:00
31e0f0efed uptime: Use fgets() 2022-10-22 14:23:34 +02:00
27a18a608c libc: Implement fgets, fgetc, getc, getchar (with buffered read IO) 2022-10-22 11:38:16 +02:00
b2f5a0502f Kernel, libc: Implement O_NONBLOCK 2022-10-21 21:51:03 +02:00
da61e3648f Kernel: Implement blocking reads
This is a huge step forward!! bc actually runs now, without echo or backspace, but it runs!!
2022-10-21 21:26:19 +02:00
0720b3245b sh: Do not backspace if command is empty 2022-10-20 19:32:32 +02:00
b69fbd46bf init: Add a Message of the Day 2022-10-20 19:27:37 +02:00
bd4c587409 sh: Try to execute programs in /bin if they are not found 2022-10-20 19:12:17 +02:00
de167c3c67 sh: Show last command' exit status in prompt if non-zero 2022-10-20 08:21:18 +02:00
44bd93b8b4 apps: Add a hello app 2022-10-19 21:13:47 +02:00
f682258fc9 sym: do not sleep 2022-10-19 21:13:38 +02:00
2c813f5901 apps: Add more simple apps
Now that we can start them at will from the command line, bring them on!!
2022-10-19 21:11:38 +02:00
aebd860947 libc: Add stdin
Aka keyboard :)
2022-10-19 20:43:04 +02:00
ba57f32f39 init: wait less before starting sh 2022-10-19 20:36:27 +02:00
a815beacfb sh: add builtins 2022-10-19 20:34:10 +02:00
20db8eaba6 Init: exit if the primary child process exits 2022-10-19 20:33:59 +02:00
7e9744419e sh: Improve it 2022-10-19 20:16:21 +02:00
3c5c92c7c3 sh: Add a simple interactive shell 2022-10-19 19:42:05 +02:00
f3af3e252b Kernel: refresh task_misbehave()
That function was severely outdated.
2022-10-19 17:26:36 +02:00
656667812a Kernel: reparent child processes to PID 1 when their parent exits 2022-10-19 17:16:01 +02:00
671f2a2de3 Kernel, libc: Implement waitpid()
FIXME: exec() is now doing weird page table stuff. But at least it works, no panics :)
2022-10-18 21:30:52 +02:00
f1bfa6bec8 Build system: more cflags + stripping 2022-10-18 18:28:28 +02:00
01564cb905 libc: Adapt libc to getprocid() + add getppid() 2022-10-18 17:36:33 +02:00
3c1146f2c5 libc: Implement setjmp() and longjmp() 2022-10-17 21:22:18 +02:00
494b48bbe3 init: Adjust init 2022-10-17 20:53:09 +02:00
8b17065718 Kernel, libc: Rename gettid() to getpid() and move it to unistd.h 2022-10-17 20:08:44 +02:00
1e96a45f33 Change 'tid' to 'PID' in init.c
I think tasks can be considered programs now. So, gettid() is equal to getpid().

In fact, it should be renamed. And moved to unistd.h. Soon.
2022-10-17 19:39:26 +02:00
64f5078494 Kernel, libc: Implement fork()
This time for real.

Also, add a new per-user-task virtual address allocator (UserHeap), so that mmap'ed pages are in user range and can be copied.
2022-10-17 18:43:35 +02:00
3bf4f854c7 init: return 0 at the end of main 2022-10-17 17:19:31 +02:00
8b70635e79 Do not strip apps 2022-10-17 17:19:23 +02:00
9b39d618de Kernel, libc: Implement spawn()
This function is a Luna alternative to fork() and exec().

Why? Simply because I can't figure out for the life of me how to implement a working fork().

So meanwhile, we have spawn() as a replacement. exec() still exists, though.
2022-10-16 18:48:35 +02:00
6d821d2638 libc: Add support for mkdir() 2022-10-16 17:37:29 +02:00
d30010d524 apps/sym: Read from the end of the file 2022-10-15 17:45:53 +02:00
45afd3e243 Replace the rand() which reads from /dev/random with a Mersenne PRNG.
Much better now.

Also, it is seeded by reading from /dev/random at startup. Not sure if that's the best idea, but we'll see.
2022-10-15 16:46:54 +02:00
1e86acd4c0 libc: Implement fcntl(F_DUPFD) and dup() 2022-10-15 11:16:34 +02:00
91d76a2ee4 Devices: Add a new RandomDevice :)
This new device uses the seeded Mersenne PRNG we use in the kernel.
This device is not meant for regular userspace use, but more for userspace to seed their own PRNGs from.

If the DeviceFS is mounted at /dev, this device can be found at /dev/random.
2022-10-14 20:14:49 +02:00
97461c7c1f Prepare for moon 0.11 2022-10-14 19:49:52 +02:00
26211bd49f It (almost) works now
The only thing doing weird stuff is exec(), so that's commented out and throws ENOSYS right now.

But we have two user tasks running in parallel, isolated from each other!
2022-10-14 16:46:00 +02:00
531b2848ac init: Execute /bin/sym instead of /sys/config
We have now proven that exec() does fail and return to userspace when a file is not a valid executable.
We can now go back to executing a normal program.
2022-10-12 20:54:32 +02:00
4091799701 Kernel, libc: Add ENOEXEC (Exec format error) 2022-10-12 19:15:44 +02:00
7a2e313a20 init: demo execv() 2022-10-12 18:04:27 +02:00
edda41a7bb libc: Implement fseek(), ftell() and rewind()
All three use the new syscall seek() (with its lseek() wrapper in unistd.h)!!
2022-10-12 15:56:03 +02:00
eb03ae91e0 Devices: Add a new Serial device
This device permits userspace to interface with the serial port.
2022-10-12 10:44:30 +02:00