asleepymoon/Luna
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46 Commits

Author SHA1 Message Date
apio
3e052c72a0 init: don't wait before executing the session binary 2022-10-29 10:01:17 +02:00
apio
0b838572e1 apps: Add a new session program which manages user login 2022-10-28 21:56:52 +02:00
apio
77d331b258 init: Open /etc/motd with O_CLOEXEC to avoid leaking this file to children 2022-10-28 17:13:45 +02:00
apio
fcf53ef6a5 Kernel: Make waitpid() block by default unless WNOHANG is specified 2022-10-27 17:05:42 +02:00
apio
7d20c507b1 Kernel, libc, userspace: Implement command-line arguments (argv) 
The only thing missing now is for sh to pass them on.
 2022-10-26 18:57:06 +02:00
apio
af452e2b2a Kernel, libc: Add dup2() 2022-10-25 18:58:06 +02:00
apio
b69fbd46bf init: Add a Message of the Day 2022-10-20 19:27:37 +02:00
apio
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
apio
ba57f32f39 init: wait less before starting sh 2022-10-19 20:36:27 +02:00
apio
20db8eaba6 Init: exit if the primary child process exits 2022-10-19 20:33:59 +02:00
apio
3c5c92c7c3 sh: Add a simple interactive shell 2022-10-19 19:42:05 +02:00
apio
f3af3e252b Kernel: refresh task_misbehave() 
That function was severely outdated.
 2022-10-19 17:26:36 +02:00
apio
656667812a Kernel: reparent child processes to PID 1 when their parent exits 2022-10-19 17:16:01 +02:00
apio
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
apio
01564cb905 libc: Adapt libc to getprocid() + add getppid() 2022-10-18 17:36:33 +02:00
apio
3c1146f2c5 libc: Implement setjmp() and longjmp() 2022-10-17 21:22:18 +02:00
apio
494b48bbe3 init: Adjust init 2022-10-17 20:53:09 +02:00
apio
8b17065718 Kernel, libc: Rename gettid() to getpid() and move it to unistd.h 2022-10-17 20:08:44 +02:00
apio
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
apio
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
apio
3bf4f854c7 init: return 0 at the end of main 2022-10-17 17:19:31 +02:00
apio
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
apio
6d821d2638 libc: Add support for mkdir() 2022-10-16 17:37:29 +02:00
apio
d30010d524 apps/sym: Read from the end of the file 2022-10-15 17:45:53 +02:00
apio
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
apio
1e86acd4c0 libc: Implement fcntl(F_DUPFD) and dup() 2022-10-15 11:16:34 +02:00
apio
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
apio
97461c7c1f Prepare for moon 0.11 2022-10-14 19:49:52 +02:00
apio
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
apio
4091799701 Kernel, libc: Add ENOEXEC (Exec format error) 2022-10-12 19:15:44 +02:00
apio
7a2e313a20 init: demo execv() 2022-10-12 18:04:27 +02:00
apio
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
apio
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
apio
44834b8a0f libc: Implement fputs, fputc, putc and putchar 2022-10-12 10:05:14 +02:00
apio
f6e783ea45 init: do not show 'read n bytes' when printing version 
that was to debug why reading /dev/version returned 'versionmoon 0.10-' instead of 'moon 0.10-fffffff'

it works now, so...
 2022-10-11 20:13:00 +02:00
apio
0a7d4a530d VFS, DeviceFS: Implement a device filesystem 
For now, we just have a version device. (this will allow us to get rid of sys_getversion!!)
More should be implemented soon.
 2022-10-11 19:21:16 +02:00
apio
6c51477197 libc: Implement ferror() and feof() 2022-10-11 16:57:08 +02:00
apio
93f6be9319 libc: Implement the start of a FILE* API (the standard, portable C way of doing file stuff) 2022-10-10 21:08:57 +02:00
apio
9e0bd39964 libc: Implement wrappers for sys_{open,read,write} 
read() and close() are in unistd.h, but open() in fnctl.h.
I thought only the definitions for O_SOMETHING were in fnctl.h, but it is as it is.
Don't know why, but let's not anger the Unix gods.

The FILE* C API is pending as well.
 2022-10-10 20:45:26 +02:00
apio
da2ede3450 Kernel, libc, userspace: Implement file descriptors 
Kernel: Implement a descriptor struct which stores the opened node and read offset, and give each task 8 of those.
Implement three syscalls: sys_read, sys_open and sys_close (sys_write still writes to the console instead of using a fd, for now)
Implement three new errors: ENOENT, EBADF and EMFILE.

libc: Implement the new errors, and the new syscalls in syscall().
Also fix _RETURN_WITH_ERRNO() to set errno correctly, which was making strerror() return null, thus crashing perror().

userspace: make init demonstrate the new file API.
 2022-10-10 20:21:39 +02:00
apio
40099feb80 Apps: Use the new %p in printf() 2022-10-08 18:11:41 +02:00
apio
34aa953dbc Add printf() and puts(), quite primitive, looks like hex printing isn't there yet... 2022-10-03 19:00:10 +02:00
apio
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
apio
d2f9e17c86 Use __luna_abort in init 2022-10-02 18:16:27 +02:00
apio
ae95a528f2 Make function stubs in libc loudly abort instead of silently failing 2022-10-02 18:10:53 +02:00
apio
8e6741ebd6 Rename SYS_version to SYS_getversion 2022-10-02 17:25:56 +02:00