Commit Graph

285 Commits

Author SHA1 Message Date
sBubshait
b3042b5aa6 Update thread structure to add mmap files table and a counter for mappings of the thread 2024-12-04 14:56:52 +00:00
sBubshait
85aabd86cd Update gitlab ci file to include mmap tests in the automated testing pipeline 2024-12-04 14:55:28 +00:00
sBubshait
acc768e177 Add mmap module in vm defining mmap_entry structure and some helper functions 2024-12-04 13:01:01 +00:00
sBubshait
8047c65227 Update syscall handling of invalid pointers by preloading pages using the helper try_fetch_page 2024-11-29 18:55:28 +00:00
sBubshait
d047a3c242 Update Userprog Makefile to include vm files 2024-11-29 18:49:26 +00:00
sBubshait
c8b93c57ee Fix: Update writability of the last page after loading as a workaround to calculating the offset, w/ G 2024-11-29 15:45:44 +00:00
sBubshait
92d0b68243 Fix: Avoid closing the file after loading segments to be able to lazily load from file without opening, w/ G 2024-11-29 14:32:55 +00:00
sBubshait
801fd7d310 Implement page fault for lazy loading executables, w/ G 2024-11-28 20:03:50 +00:00
sBubshait
df20e0fdfe Update load_segment to load only the metadata of the pages to the SPT, w/ G 2024-11-28 18:35:49 +00:00
sBubshait
97e6e0fb1e Add SPT Helper Functions: Insert, Get, Cleanup w/ G 2024-11-28 18:18:52 +00:00
sBubshait
14fc96febf Implement Supplemental Page Table (SPT) per thread along with structure for its entries, w/ G 2024-11-28 17:54:15 +00:00
Themis Demetriades
1e6b90da0d Implement skeleton for swapping frames into disk 2024-11-26 18:59:46 +00:00
Themis Demetriades
ea2725f606 feat: implement frame table without thread safety 2024-11-26 15:17:11 +00:00
Demetriades, Themis
605050e38d Merge branch 'code-review-2-changes' into 'master'
fix: code review 2 changes

See merge request lab2425_autumn/pintos_22!52
2024-11-24 16:52:48 +00:00
6225a2eb8b fix: ignore failing tests for now 2024-11-24 16:22:13 +00:00
aedb72246b fix: do not acquire filesys_lock for tell and seek 2024-11-24 15:41:18 +00:00
e1f0258f8e fix: handle malloc result in init_process_result 2024-11-24 15:09:32 +00:00
Saleh Bubshait
eed4ce5130 Merge branch 'single-exit-status' into 'master'
Use a single `exit_status` instead of two

See merge request lab2425_autumn/pintos_22!50
Task_2_-_User_Programs
2024-11-15 18:08:25 +00:00
8567434231 Use a single exit_status instead of two 2024-11-15 17:28:04 +00:00
e76712d3fd Merge branch 'task2/thread-init-bug-fix' into 'master'
Fix Bug in fd_counter initialisation when USERPROG is not defined

See merge request lab2425_autumn/pintos_22!49
2024-11-15 17:17:14 +00:00
sBubshait
8f82f9d747 Fix Bug in fd_counter initialisation when USERPROG is not defined 2024-11-15 16:57:16 +00:00
Saleh Bubshait
9ee29ac40a Merge branch 'child-results-hash-table' into 'master'
Implement hash table for child process results

See merge request lab2425_autumn/pintos_22!48
2024-11-15 16:48:41 +00:00
2566948a32 Implement hash table for child process results 2024-11-15 16:45:04 +00:00
222aeff90f Merge branch 'task2/refactoring/saleh' into 'master'
Refactor System Calls and Process for Readability; Change FD to local counter and use it as hash

See merge request lab2425_autumn/pintos_22!47
2024-11-15 16:41:12 +00:00
sBubshait
ea3b3594ea Update fd_hash to use the fd itself as the hash value for performance, w/ G & E 2024-11-15 15:53:01 +00:00
sBubshait
6b1dbdd34f Update thread and syscall to use local fd counter instead global one, preventing overflow 2024-11-15 15:48:56 +00:00
sBubshait
7daf4fb079 Refactor process_exit to add more comments for readability 2024-11-15 15:35:07 +00:00
sBubshait
a7f1d519da Refactor process_wait to add more comments and improve readability 2024-11-15 15:09:24 +00:00
sBubshait
0f1bce2e88 Refactor process_init_stack to add asserts and comments 2024-11-15 14:52:21 +00:00
sBubshait
f4c900e56c Refactor process.c for comments, clarity and readability 2024-11-15 14:37:38 +00:00
sBubshait
82d45880f7 Update validate_user_pointer to start from the beginning of the page rather than the given ptr 2024-11-15 13:51:10 +00:00
sBubshait
1c757ecdfe Update syscall to add more helpful comments for clarity and readability 2024-11-15 13:51:10 +00:00
sBubshait
6a1d10a19b Refactor synch to follow PintOS curly braces indentation style in if statements 2024-11-15 13:51:10 +00:00
Demetriades, Themis
0e50603eef Merge branch 'stack-init-overflowfix' into 'master'
Remove args-ovf user program binary, replacing with source for testing

See merge request lab2425_autumn/pintos_22!44
2024-11-15 13:41:41 +00:00
Themis Demetriades
7947ac78e8 Remove args-ovf user program binary, replacing with source for testing 2024-11-15 13:40:21 +00:00
Demetriades, Themis
4b0d0a51f0 Merge branch 'stack-init-overflowfix' into 'master'
Update stack initialization code to handle all possible overflows and...

See merge request lab2425_autumn/pintos_22!43
2024-11-15 13:38:35 +00:00
Themis Demetriades
eff0837fdc Update stack initialization code to handle all possible overflows and implement a user program to test this 2024-11-15 13:35:58 +00:00
Demetriades, Themis
9b82947beb Merge branch 'stack-init-memfix' into 'master'
Fix memory leak in start_process

See merge request lab2425_autumn/pintos_22!42
2024-11-14 21:06:20 +00:00
Themis Demetriades
5e2e7199f2 Fix memory leak in start_process 2024-11-14 21:03:55 +00:00
Demetriades, Themis
bbe41e178d Merge branch 'stack-init-optimize' into 'master'
Optimize stack initialization by not using malloc, and remove use of 'goto' (for code review safety)

See merge request lab2425_autumn/pintos_22!41
2024-11-14 16:06:22 +00:00
Themis Demetriades
e4036c715f Refactor start_process to hold file system lock for less time 2024-11-14 16:05:15 +00:00
Themis Demetriades
3a46e0f73a Update user proc stack initialization comments to be more helpful 2024-11-14 15:54:34 +00:00
Themis Demetriades
8821851459 Refactor process_execute to remove use of 'goto' 2024-11-14 14:42:26 +00:00
Themis Demetriades
1a2ff35231 Refactor process_execute to pass process start data as a local reference rather than perform memory allocation on the heap 2024-11-14 14:32:48 +00:00
Saleh Bubshait
79b3b8fda7 Merge branch 'userprog-oom' into 'master'
Fix multi-oom

See merge request lab2425_autumn/pintos_22!39
2024-11-13 22:09:11 +00:00
f5e498e0a9 explicit thread_exit () when process_start () fails 2024-11-13 21:58:41 +00:00
d02b956221 Merge branch 'system-calls' into 'userprog-oom'
Add Fixes to Memory Leaks, Memory Access Validation, Synchronised Processes and Refactoring

See merge request lab2425_autumn/pintos_22!38
2024-11-13 19:20:19 +00:00
Saleh Bubshait
927c376d02 Merge branch 'task2/system-calls/saleh' into 'system-calls'
Fix Memory Leaks, Synchronisation in Processes, and Refactoring

See merge request lab2425_autumn/pintos_22!37
2024-11-13 18:51:51 +00:00
sBubshait
fa2fb4a711 Refactor system call comments for accuracy and grammar 2024-11-13 18:48:23 +00:00
sBubshait
31ea215805 Refactor validate_user_string to remove unnecessary variable to track length of str 2024-11-13 18:30:24 +00:00