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59e7a64f8e
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Only check user pages rather than all bytes in-between, for known-size pointers
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2024-11-12 15:48:22 +00:00 |
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cf4bf90cbb
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Implement user pointer checking for C strings
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2024-11-12 15:34:45 +00:00 |
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9a6abab95e
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Check access to user memory using page fault method (via get_user and put_user).
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2024-11-12 15:00:16 +00:00 |
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44f6a85163
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Add get_user and put_user provided by spec.
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2024-11-12 14:50:53 +00:00 |
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83e044cf68
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Let kernel handle its own page faults
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2024-11-12 14:50:53 +00:00 |
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Themis Demetriades
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a69b9c808e
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Update start_process to acquire filesys lock when loading user process file
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2024-11-12 14:21:33 +00:00 |
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Demetriades, Themis
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7d9900c6d8
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Merge branch 'exec-missing-validation' into 'master'
Add validation to check for missing files in exec() args
See merge request lab2425_autumn/pintos_22!36
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2024-11-11 23:25:26 +00:00 |
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EDiasAlberto
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72afecfbda
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Add validation to check for missing files in exec() args
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2024-11-11 23:10:02 +00:00 |
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Demetriades, Themis
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9e692ced9e
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Merge branch 'userprog-merge' into 'master'
Update variable references between conflicting merges to refer to the same...
See merge request lab2425_autumn/pintos_22!35
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2024-11-11 22:59:45 +00:00 |
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Demetriades, Themis
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f194fa1fa8
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Merge branch 'userprog-merge' into 'master'
Implement complete stack initialization, process_wait, and all system calls correctly except exec
See merge request lab2425_autumn/pintos_22!34
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2024-11-11 22:56:28 +00:00 |
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Themis Demetriades
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e8713e26c6
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Update variable references between conflicting merges to refer to the same data in stack initialization
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2024-11-11 22:51:19 +00:00 |
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Demetriades, Themis
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47c3657b65
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Merge branch 'process-wait' into 'userprog-merge'
Fix race-condition in process result (memory leak), fix infinite loop in donors_list
See merge request lab2425_autumn/pintos_22!33
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2024-11-11 22:24:39 +00:00 |
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Demetriades, Themis
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4eafdf10ba
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Merge branch 'read-only-exec' into 'userprog-merge'
Combine syscall code with final stack initialization code
See merge request lab2425_autumn/pintos_22!32
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2024-11-11 22:23:20 +00:00 |
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Themis Demetriades
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14a4841772
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Fix bug where size of file name buffer was less than maximum file name size
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2024-11-11 22:13:10 +00:00 |
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Themis Demetriades
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52fdd47e0c
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Fix race condition in the passing of data from thread executing process_execute to its child
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2024-11-11 21:51:38 +00:00 |
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Themis Demetriades
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049fc5559c
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Reformat stack initialization code to follow style for length and spacing
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2024-11-11 21:20:53 +00:00 |
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EDiasAlberto
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98a5818406
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add file_deny_write and file_allow_write to process creation and exiting to make executable read-only
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2024-11-11 17:55:24 +00:00 |
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18c884234d
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Fix race-condition in process result (memory leak), fix infinite loop in donors_list
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2024-11-11 17:35:49 +00:00 |
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EDiasAlberto
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5b1e4b561b
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merge process-wait
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2024-11-11 15:50:21 +00:00 |
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Themis Demetriades
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b8d358ecb2
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Update stack initialization to handle overflow by allocating a second page for argument pointers
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2024-11-11 13:13:21 +00:00 |
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Themis Demetriades
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8b2fc86b51
|
Refactor process_init_stack to reduce code duplication
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2024-11-10 14:34:38 +00:00 |
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Themis Demetriades
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324301e7b3
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Update process_execute function comment to reflect new function arguments
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2024-11-10 13:43:22 +00:00 |
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Themis Demetriades
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0ac46db2e4
|
Refactor process initialization to obtain name of process file in process_execute
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2024-11-10 13:41:08 +00:00 |
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Themis Demetriades
|
795d81b7ad
|
Update process_init_tack saveptr argument name to cmd_savetpr for clarity
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2024-11-10 11:33:29 +00:00 |
|
Themis Demetriades
|
6018c0f6ec
|
Refactor process_init_stack to not surpass 80 character limit
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2024-11-10 11:25:20 +00:00 |
|
Themis Demetriades
|
f0dae74cf3
|
Update stack initialization alignment calculation to use WORD_SIZE constant for clarity
|
2024-11-10 11:24:51 +00:00 |
|
Themis Demetriades
|
a165107f5f
|
Update process execution related function argument names to be more accurate
|
2024-11-10 11:17:22 +00:00 |
|
Themis Demetriades
|
b37f205334
|
Update process_init_stack to return success, refactoring error handling to occur inside start_process
|
2024-11-10 11:13:11 +00:00 |
|
EDiasAlberto
|
1bfd73b202
|
Comment syscall functions and handlers
|
2024-11-10 01:32:58 +00:00 |
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7778e05aa4
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Fix deadlock by release of lock and semaphore in the wrong order
|
2024-11-09 11:06:36 +00:00 |
|
sBubshait
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115c650c55
|
Fix Bug in thread initialisation: only init hash if USERPROG is defined
|
2024-11-08 19:10:42 +00:00 |
|
Themis Demetriades
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5ed999bc9c
|
Refactor push_to_stack helper to match style of other helper functions
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2024-11-08 16:53:30 +00:00 |
|
sBubshait
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e40794e672
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Fix Bug in fd_get_file: In case fd not found, then returns NULL, w/ E
|
2024-11-08 16:48:19 +00:00 |
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Themis Demetriades
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a19f02fad7
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Move user process stack initialization into a helper function
|
2024-11-08 16:46:18 +00:00 |
|
sBubshait
|
8912ef4660
|
Implement writing to file system files in the write system call, w/ E
|
2024-11-08 16:26:47 +00:00 |
|
EDiasAlberto
|
18694d7b62
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Implement file reading syscall and fix fd validation w/ S.
|
2024-11-08 16:25:49 +00:00 |
|
sBubshait
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2a1cc3c361
|
Implement filesize and tell system calls, w/ E
|
2024-11-08 16:14:53 +00:00 |
|
EDiasAlberto
|
3cfbe198e0
|
Implement syscall for seek w/ S.
|
2024-11-08 16:10:46 +00:00 |
|
EDiasAlberto
|
75bd3fbde0
|
Implement syscall for close() and fix typing bug in fd_get_file w/ S.
|
2024-11-08 16:02:51 +00:00 |
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Themis Demetriades
|
b866fa88cd
|
Refactor process.c to use FNAME_MAX_LEN constant
|
2024-11-08 15:54:47 +00:00 |
|
sBubshait
|
a80084e907
|
Fix Bug in fd_get_file declaration use open_file instead of file, w/ E
|
2024-11-08 15:54:28 +00:00 |
|
sBubshait
|
5424276603
|
Add a helper function to get a file from its descriptor (FD), w/ E
|
2024-11-08 15:50:48 +00:00 |
|
Themis Demetriades
|
b64434fb9d
|
Move definition of maximum file name length from <syscall> to file.h
|
2024-11-08 15:41:35 +00:00 |
|
EDiasAlberto
|
92e93b8060
|
Implement syscall for file opening and refactor open_files initialisation in thread.c w/ S.
|
2024-11-08 15:33:47 +00:00 |
|
sBubshait
|
5bd94894e0
|
Update thread structure to add a hash table of open files and initialise it, w/ E
|
2024-11-08 15:13:04 +00:00 |
|
sBubshait
|
5bbe7a03c0
|
Add in syscall hash helper functions for open_file struct: fd_hash and fd_less, w/ E
|
2024-11-08 15:12:08 +00:00 |
|
sBubshait
|
b112824a64
|
Implement the exec system call through process_execute, w/ E
|
2024-11-08 14:41:27 +00:00 |
|
EDiasAlberto
|
dca9d8f5a3
|
Implement syscall for file removal w/ S.
|
2024-11-08 14:35:23 +00:00 |
|
EDiasAlberto
|
a8676f2e09
|
Implement syscall for file creation, with relevant locks w/ S.
|
2024-11-08 14:34:08 +00:00 |
|
sBubshait
|
26e38be761
|
Update validate_user_pointer to check if the ptr is mapped to a physical memory address, w/ E
|
2024-11-08 14:21:16 +00:00 |
|
