Commit Graph

180 Commits

Author SHA1 Message Date
ce0cfb2e11 Remove protector pages 2020-07-22 21:20:50 -05:00
51a4007bba remove an unimplemented function from paging.h 2020-07-22 21:17:55 -05:00
ea574dbf23 Kernel stack setup is now platform-dependent 2020-07-22 19:54:33 -05:00
ace6b4397d make address_spaces.c non cpu specific 2020-07-22 19:46:57 -05:00
918b944b9e Fix a warning 2020-07-22 19:37:30 -05:00
ece3b47223 Fix some build errors 2020-07-22 19:37:11 -05:00
06ca0a5913 Sort includes 2020-07-22 19:35:23 -05:00
eef40edb3f Portability work 2020-07-22 19:26:55 -05:00
76eedfb921 new_thread is now pthread_create 2020-07-22 07:33:44 -05:00
24e34f0011 Exit was not unmarking the task as scheduled 2020-07-21 16:31:51 -05:00
dbcb761147 Kernel thread stacks were not mapped properly 2020-07-21 16:30:22 -05:00
b37d8895d7 Add the current thread as an external variable in the tasking header 2020-07-21 16:29:57 -05:00
69cd4f248d Kernel thread creation can now take a pid and an argument 2020-07-20 11:24:09 -05:00
ff3885241a Full purge of the word "Task" from my tasking code 2020-07-20 10:07:46 -05:00
57c663a0e0 Tasking rewrite & add multi-threading 2020-07-20 09:51:30 -05:00
7cde3f4eca Remove redundant syscalls 2020-07-12 16:29:57 -05:00
5717209148 Syscall number reorg 2020-07-12 14:39:22 -05:00
679b5a3b8d Add syscall macros and remove mailbox IPC 2020-07-12 14:30:16 -05:00
ac7cc05113 Add task states 2020-07-12 14:28:58 -05:00
9e87405ff7 Fix some warnings 2020-07-12 13:47:17 -05:00
ff1ec1ac79 Attempt to fix the ipc corruption 2020-07-09 11:28:57 -05:00
832a01b7e9 Interrupt code now passes a pointer to the saved registers 2019-12-14 10:41:04 -06:00
ba3add445e Fix interrupt.h having broken header guard 2019-12-14 10:25:00 -06:00
1c5a986e6d Start work on an initrd driver and attempt to debug pg fault on msg send 2019-10-20 09:44:33 -05:00
81fd21da2a Change mailboxes to not use kmalloc 2019-09-22 08:38:31 -05:00
faf3a3aad9 Change find_free_pages to return a void* 2019-09-22 08:25:08 -05:00
f88622c154 Mailboxes can now be found by their names. 2019-09-05 09:39:13 -05:00
2080e0256a Fix a bug with sending a message of size 0. 2019-09-01 14:14:25 -05:00
9a89873c8b Mailboxes now have names 2019-09-01 13:52:32 -05:00
1522fed9a8 Add getpid function 2019-09-01 13:49:01 -05:00
f8160bb3ee Fix IPC buffer size check 2019-09-01 13:01:37 -05:00
7d453fd06b Yet again, attempt to fix IPC 2019-08-31 18:43:27 -05:00
d2dbbb85a5 Fix IPC issues (I suspect looparound issues) 2019-08-31 16:46:21 -05:00
d874b17b14 Fix exit not looping around to head task 2019-08-31 10:49:35 -05:00
e349f0ad3d Add protection againt sending to mailbox 0 2019-08-28 20:24:53 -05:00
54ab300502 Get all programs building using the new hosted cross-compiler 2019-08-28 08:26:42 -05:00
916ffea498 Add syscalls to get initrd size and copy it into user supplied memory 2019-08-26 13:07:01 -05:00
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
593e618318 Remove some logging 2019-05-01 09:41:31 -05:00
3691d6b1f5 Essentially merge ext-prog-libc 2019-05-01 09:39:23 -05:00
5cb95d816f long mode paging work 2019-04-30 17:11:26 -05:00
83e1f27567 i386 moved to multiboot2 and x86_64 has physical memory manager 2019-04-27 15:03:31 -05:00
c6bca7f177 Add long mode IDT 2019-04-27 09:51:32 -05:00
5384ec3af0 Add VGA driver 2019-04-26 10:03:16 -05:00
fbef5710ed Long mode works!!! 2019-04-26 09:47:57 -05:00
e10fe99d05 Remove long mode env 2019-04-26 09:20:07 -05:00
c75aa35e1b Long mode work 2019-04-25 15:46:48 -05:00
e51f3e4db2 Start work on x86_64 platform 2019-04-22 13:18:27 -05:00
d8dade3fb3 Fix platform-specific makefile 2019-04-22 08:39:46 -05:00
d78e7743ce Fix warnings 2019-04-21 14:19:52 -05:00
16c8742bef Work on adding partition support 2019-04-18 08:50:49 -05:00