Commit Graph

93 Commits

Author SHA1 Message Date
e8730b145a Make usermode programs hosted, and add noreturn to exit. 2019-08-26 07:43:25 -05:00
d186939f87 start.asm now calls exit with a 0 exit code 2019-08-25 17:41:13 -05:00
c8a3a49b87 Forgot to change kernel exit code back to 0 2019-08-25 17:33:05 -05:00
3ca8b5a232 Add a very basic exit function and fix kmalloc.
Exit function does not deallocate task memory except for the data block, 
and does not are about the exit code except for logging.
2019-08-25 17:32:08 -05:00
5a5fee4d74 Tasks now are a doubly-linked list 2019-08-25 17:06:19 -05:00
d12421a7c8 Add a serial_print syscall 2019-08-25 13:52:56 -05:00
2827a2d7ba Mailbox code did not save mailbox data upon returning from functions 2019-08-25 13:52:31 -05:00
895bd9613e Add a serial log if a PID yield is tried for a nonexistent pid. 2019-08-05 14:23:54 -05:00
7d25533307 Fix serial logging for getting a message 2019-08-05 14:23:27 -05:00
99522efde5 Add a kernel serial driver and a yieldToPID function. 2019-08-04 13:14:35 -05:00
e80d084584 Sync repo with code for IRC help 2019-08-03 15:50:23 -05:00
05c1e20aa6 Remove magic breakpont afer paging init 2019-08-02 19:55:59 -05:00
823a255e1a Fix vfs saying the message was sent from init's stdio mailbox.
Unfortunately, this breaks the VFS, so the rest of this commit attempts 
(and fails) to fix it.
2019-07-27 11:11:28 -05:00
7974c1e026 Get VFS workng and start on fputc. Debugger is currently broken :( 2019-07-20 11:03:27 -05:00
d62ccb0dc1 Add a process to act as a filesytem driver and get a .gdbinit file setup
.gdbinit is used to make it easier to debug userspace processes
2019-07-13 10:18:41 -05:00
74cdc67dce Fix/ignore all the warnings 2019-07-01 15:30:00 -05:00
aef1d74750 Finish fopen in the vfs and hopefully add a working fopen in stdio.c 2019-07-01 15:13:47 -05:00
7611d929a3 Fix most warnings 2019-06-29 09:04:34 -05:00
51bb986d76 Change IPC to a mailbox-based system
Instead of using PIDs to identify a destination, a process can have one 
or more mailboxes to send messages to.
2019-06-27 17:00:23 -05:00
9db6bf61ca Start work on making IPC use a mailbox approach 2019-06-24 13:24:39 -05:00
ade1521bc4 Copy message data from kspace into uspace upon receiving message.
Fixes #30
2019-06-22 15:42:06 -05:00
1216d4c000 Store size of message in buffer 2019-06-22 15:29:02 -05:00
7ee2472fe5 Get IPC working 2019-06-22 11:11:12 -05:00
8bdbe06b8c Move kernel stacks into common memory and fix tasking. 2019-06-22 10:21:50 -05:00
997927fea4 Add a limit of 24k tasks ever being created. 2019-06-17 08:20:36 -05:00
c295d56ae8 IPC now uses a buffer in the task structure 2019-06-17 08:14:45 -05:00
c4d39011cd Fix unmap_pages not invalidating entries 2019-06-17 06:58:31 -05:00
9654487b5b add unmap_pages 2019-05-28 16:05:51 -05:00
38c39611fd load_address_space now uses load_smap 2019-05-25 16:00:52 -05:00
e0a6ebc0b3 load_smap now invaliadtes pages 2019-05-25 16:00:33 -05:00
f68cf49a15 copy_data and put_data now use load_smap 2019-05-25 16:00:12 -05:00
c036eb1e9a revert to old build system 2019-05-25 10:35:31 -05:00
b28234806b ignore more build products 2019-05-25 10:16:39 -05:00
09206d0645 fix files looking for ports.h in wrong place 2019-05-25 10:13:59 -05:00
30e043955b Add empty vfs program and fix tar parsing 2019-05-24 11:52:13 -05:00
382bd0c5e9 large restructure 2019-05-24 09:51:45 -05:00
7f25b58910 move cpu folder into kernel folder 2019-05-24 09:04:31 -05:00
2fac49887f Kernel now passes initrd and size to init 2019-05-24 08:54:14 -05:00
3a6f95a86a Every task now takes two parameters in the tasking code 2019-05-23 20:21:51 -05:00
63b46be967 Move initrd to tar 2019-05-23 17:38:26 -05:00
9d2c37329f Add an x variable to the vga error driver in the kernel 2019-05-23 09:44:40 -05:00
204fec4407 Remove all drivers and fs code from kernel 2019-05-22 14:18:29 -05:00
3448e834e8 Tasking finally works!! 2019-05-21 19:16:19 -05:00
613f77f949 Start large change of tasking system 2019-05-11 10:11:28 -05:00
68b6a77a65 Fix warnings 2019-05-06 08:38:02 -05:00
3856a5dc0a Get init loaded as a separate process 2019-05-06 08:24:57 -05:00
21a395de3b Remove logging messages in kernel and fix some warnings 2019-05-05 07:27:57 -05:00
361bfb0aa8 Kernel code now only loads init 2019-05-03 08:34:22 -05:00
f43d8e3af4 Run program at end of init() 2019-05-01 19:40:59 -05:00
50b0c0a4c4 Move _start to a dedicated file 2019-05-01 11:55:54 -05:00