28 Commits

Author	SHA1	Message	Date
Stephen Marz	43e18b498d	Don't grab the table unless we really need it.	2020-05-17 15:13:53 -04:00
Stephen Marz	fe023e026e	Add testing printout.	2020-05-17 15:08:01 -04:00
Stephen Marz	9326255507	Get rid of unnecessary cast.	2020-05-17 15:07:03 -04:00
Stephen Marz	d6843c1b20	Create an exec system call and move loading an ELF file into that.	2020-05-17 15:06:30 -04:00
Stephen Marz	c649947707	Added Registers to CPU so we don't have to hardcode the register number. This makes it easier to read and figure out what's happening	2020-05-15 12:48:05 -04:00
Stephen Marz	6367e064cf	Reworked file system, still much to do, however, now we can get a file by its name instead of inode number.	2020-05-15 10:34:37 -04:00
Stephen Marz	723963e1ec	Resolved	2020-05-01 19:11:42 -04:00
Stephen Marz	21f16b4754	Resolved	2020-05-01 19:10:56 -04:00
Stephen Marz	6cd64c84bf	Do not spin lock in an interrupt context, and also add feedback to the caller.	2020-05-01 19:02:58 -04:00
Stephen Marz	fe5a909335	Create a system call to add a process to prevent data race with the process list.	2020-05-01 18:59:38 -04:00
Stephen Marz	a1f9d2c6cd	Add Mutex to process list.	2020-04-26 20:11:01 -04:00
Stephen Marz	1627cc7733	Read and start a process...Added userspace library...will switch this to newlib later.	2020-04-25 21:23:00 -04:00
Stephen Marz	cbff6afeca	Added comments.	2020-04-25 19:51:27 -04:00
Stephen Marz	84e5126d29	Added formatting, made syscall.rs clearer to read.	2020-04-25 18:48:23 -04:00
Stephen Marz	056ef5bb2d	Added dump_registers as syscall 1--for debugging purposes.	2020-04-25 18:25:18 -04:00
Stephen Marz	d86c65a380	Added comments and removed llvm_asm -- it looks like I'll have to use this in the future	2020-04-25 17:34:06 -04:00
Stephen Marz	0de9b23b17	Change test and added comments	2020-04-25 16:06:29 -04:00
Stephen Marz	080a529f01	Reading up to indirect pointers	2020-04-25 15:15:25 -04:00
Stephen Marz	787f886b6f	Clean up code, added deleting a process if a user process causes a fault.	2020-04-24 22:19:41 -04:00
Stephen Marz	71702acd43	Added comments and formatted.	2020-04-24 19:30:00 -04:00
Stephen Marz	4c31f8c563	Add inode number to fs_read	2020-04-24 19:22:27 -04:00
Stephen Marz	a113db700a	Added RA to call syscall_exit for kernel processes.	2020-04-24 19:16:45 -04:00
Stephen Marz	8ae5ebb085	Added syscall_block_read and syscall_fs_read.	2020-04-24 18:56:32 -04:00
Stephen Marz	58ab3f3b6f	Don't let init sleep. This will cause us to hang in the scheduler.	2020-04-24 18:46:31 -04:00
Stephen Marz	73636c1de1	Updates to add a process for a file system read in the system call.	2020-04-24 18:37:48 -04:00
Stephen Marz	2e48b86656	Auto-drop processes, and added delete process.	2020-04-24 15:22:57 -04:00
Stephen Marz	599627b74a	Updated to allow for system calls that change process state	2020-04-24 14:39:33 -04:00
Stephen Marz	c184aae307	Add rng.rs for ch9 and overall	2020-03-15 20:18:46 -04:00