io/optimizations/drills/tasks/async-server Update README

The instructions numbering in README was only 1s, oddly looking

Signed-off-by: Rares Balcan <[email protected]>

io/optimizations/drills/tasks/multiplexed-client-server Update README

The instructions numbering in README was only 1s, oddly looking

Signed-off-by: Rares Balcan <[email protected]>

io/optimizations Add checker for async-server

Added a checker for async-server. Added `make check` rule to the Makefile. Updated README.md with checker instructions.
Modified the `test-file` size that is being sent from 1GB to 100MB, so the checker can run in a shorter time.

Signed-off-by: Rares Balcan <[email protected]>

io/optimizations: Add checker for async-server

Added a checker for async-server.
Added `make check` rule to the Makefile.
Updated README.md with checker instructions.
Modified the `test-file` size that is being sent from
1GB to 100MB, so the checker can run in a shorter time.

Signed-off-by: Rares Balcan <[email protected]>

io/ipc: Add checker for client-server

Added checker(s) for client-server, one for the
client, another one for the server.
Added instructions in README upon using the checker
and a Makefile rule for it.
Added a script for resetting connection, in case
the port is blocked.

Signed-off-by: Rares Balcan <[email protected]>

labs/lab-11: Add checkers and fix wording

Added checkers for async-server and client-server.
Added 'make check' rules to the Makefile.
Updated README.md with checker and arhchive instructions.
Added lab11.md in overview/reading.

Signed-off-by: Rares Balcan <[email protected]>

Update chapters/io/ipc/drills/tasks/client-server/README.md

Co-authored-by: Teodor Dutu <[email protected]>

Update chapters/io/optimizations/drills/tasks/async-server/tests/check_server.sh

Co-authored-by: Teodor Dutu <[email protected]>

Update chapters/io/ipc/drills/tasks/client-server/tests/check_server.sh

Co-authored-by: Teodor Dutu <[email protected]>

Update chapters/io/ipc/drills/tasks/client-server/tests/check_client.sh

Co-authored-by: Teodor Dutu <[email protected]>

Update chapters/io/optimizations/drills/tasks/async-server/tests/check_server.sh

Co-authored-by: Teodor Dutu <[email protected]>

Update chapters/io/ipc/drills/tasks/client-server/solution/Makefile

Co-authored-by: Teodor Dutu <[email protected]>

Update chapters/io/optimizations/drills/tasks/async-server/solution/Makefile

Co-authored-by: Teodor Dutu <[email protected]>

Update chapters/io/optimizations/drills/tasks/async-server/solution/Makefile

Co-authored-by: Teodor Dutu <[email protected]>

software-stack/system-calls: Fix minor bugs in lab01

- Fix SPDX license comment to use asm comment style
- Fix `syscall-wrapper/support/` directory structure
- Fix no. of skipped lines when generating `main.c`

Signed-off-by: Vlad Grigore <[email protected]>

assignments/elf-loader: Add ELF Loader assignment

Add a new PIE statically linked ELF Loader assignment.

Signed-off-by: Stefan Jumarea <[email protected]>

data/memory-security: Fix typo in `buffer-overflow-leak` guide

Replace "don" with "don't".

Signed-off-by: Mihnea Firoiu <[email protected]>

software-stack/high-level-languages: Fix typo in `high-level-lang` task

Replace `spport/` with `support/`.

Signed-off-by: Sorin Birchi <[email protected]>

data/working-with-memory: Fix inconsistencies in lab 3

- `make skels` would generate the src file which had random
brace symbols scattered throughout and made compiling the
code impossible.
- Replaced C Syntax code (scanf, printf) with dlang equivalent
(readf, write/writeln). Pass `in_bits` array by ref in the
`to_bits` function so the code actually does what it is supposed
to. Minor additional spacing.
- Made the read-only variable `ro` a global variable instead of a
local one to be added to the .rodata section. Keeping
it as a local variable stopped executing but still permitted
writing via `do_write()` function.

Signed-off-by: dariusica2 <[email protected]>

compute/synchronization: Add link to the lab 8 archives and fix typos

- Add links to the lab archive and change directory references.
- Fix typo in `tls-on-demand` TODO.

Signed-off-by: Vlad Hosu <[email protected]>

io/ipc: Add link to lab 10 archive and review lab 10

- Add links to the lab archive and change directory references.
- Add man links and additional explanations in the text.
- Correct some comments.

Signed-off-by: Laura Ruse <[email protected]>

data/guides: Created dedicated guide folder for support files

Created `static-dynamic` guide folder and moved assosiated files to it.
Modified references to it in `.md` files.

Signed-off-by: Cristian-Stefan Lazar <[email protected]>

Modified generate_skels.py from Lab2 (#195)

Added go files when generating skels

Signed-off-by: Sorin Birchi <[email protected]>

software-stack/libc: Fix minor bugs in lab02

- Fix SPDX license comment to use asm comment style
- Remove redundant calls to 'os_string' functions in task 'libc' (probably a leftover from the other task)
- Change 'putchar_buffer_len' from 'char' to 'int' to hold 1024 characters (had a student ask why the length was stored in a char, it shouldn't)

Signed-off-by: Vlad Grigore <[email protected]>

Update lab archive generator workflow

Remove `.zip` from gitignore, this is needed because the workflow will
overwrite the changes to the archive if the file is ignored by git.
Create a commit for removing the outdated archives, since `git
stash pop` will generate a merge conflict otherwise.
Check if the name of the task contains `drills`. If it does not, do not
add it to the archive.

Signed-off-by: Stefan Jumarea <[email protected]>

labs/lab6: Review and fix typos

Fix #176

Signed-off-by: Mihai-Carol Bazga <[email protected]>

/data/working-with-memory: Update `static-dynamic` Makefile for proper static and dynamic linking

The previous Makefile did not provide both dynamic and static executables.

Signed-off-by: Oprea Stefan Antoniu <[email protected]>

data/tasks/copy: Add a rule to generate in.dat (#204)

Added new `input` rule to create `in.dat`
containing "Hello, world!". Updated the `all` target
to include `input`, ensuring the file is generated
automatically during the build.

Fixes #203

Signed-off-by: Andreia Ocanoaia <[email protected]>

software-stack/drills: Remove the `support/` folder for the `libc` task.

This folder is generated by `make skels`.

Signed-off-by: Andrei Lungu <[email protected]>

exec-shellcode/Makefile: Fix Makefile

Fix: Utils directory is from now on being copied to output.

Signed-off-by: Mihnea Firoiu <[email protected]>

software-stack/system-calls: Fix typo and rephrase

Fix a typo in drills/questions/syscall-numbers.md

Signed-off-by: nicolasdumitru <[email protected]>

io/file-descriptors: Add testing suggestion for each task.

Suggested students to test manually each task before using
'tests/checher.sh', for a better understanding of the concept.

Added `lab9.md` that instructs students to download the arhive
or use GitHub.

Changed config.yaml to add `lab9.md` to the archive.

Added guidance to tasks directories.

Signed-off-by: Matei Stanuca <[email protected]>

Author: raress04

.checkpatch.ignore

@@ -1,3 +1,4 @@
 # Ignore directories containing third-party files
 chapters/compute/synchronization/drills/tasks/threadsafe-data-struct/support
 content/assignments/async-web-server/src/http-parser
+content/assignments/elf-loader/tests

.github/workflows/lab-archive.yml

@@ -37,6 +37,13 @@ jobs:
             exit 0
           fi
 
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+          ls -A *.zip > zip-list
+          git add *.zip
+          git stash
+
           # Create or switch to lab-archives branch
           if git ls-remote --exit-code origin lab-archives; then
             git fetch origin lab-archives
@@ -46,15 +53,12 @@ jobs:
             git rm -rf .
           fi
 
+          # Remove old archives
+          for f in $(cat zip-list); do rm "$f"; git rm "$f"; done
+          git commit -m "Remove outdated lab archives for commit $GITHUB_SHA"
+
           # Copy new zips into branch root
+          git stash pop
           git add *.zip
-
-          # Only commit if there are changes
-          if ! git diff --cached --quiet; then
-            git config user.name "github-actions[bot]"
-            git config user.email "github-actions[bot]@users.noreply.github.com"
-            git commit -m "Update lab archives for commit $GITHUB_SHA"
-            git push origin lab-archives
-          else
-            echo "No changes to commit."
-          fi
+          git commit -m "Update lab archives for commit $GITHUB_SHA"
+          git push origin lab-archives

.gitignore

@@ -15,7 +15,6 @@
 *.war
 *.nar
 *.ear
-*.zip
 *.tar.gz
 *.rar
 

chapters/compute/overview/reading/lab6.md

@@ -0,0 +1 @@
+The contents of the lab are located in the [lab archive](https://github.com/cs-pub-ro/operating-systems/raw/refs/heads/lab-archives/Lab_6_Multiprocess_and_Multithread.zip) and in the [GitHub repository](https://github.com/cs-pub-ro/operating-systems).

chapters/compute/overview/reading/lab8.md

@@ -0,0 +1 @@
+The contents of the lab are located in the [lab archive](https://github.com/cs-pub-ro/operating-systems/raw/refs/heads/lab-archives/Lab_8_Synchronization.zip) and in the [GitHub repository](https://github.com/cs-pub-ro/operating-systems).

chapters/compute/processes/drills/tasks/create-process/README.md

@@ -1,11 +1,12 @@
 # Create Process
 
-Enter the `chapters/compute/processes/drills/tasks/create-process/` directory, run `make skels`, open the `support/src` folder and go through the practice items below.
+Enter the `create-process/` directory (or `chapters/compute/processes/drills/tasks/create-process/` if you are working directly in the repository).
+Run `make` and then enter `support/` folder and go through the practice items below.
 
 Use the `tests/checker.sh` script to check your solutions.
 
 ```bash
-./checker.sh
+./tests/checker.sh
 exit_code22 ...................... passed ... 50
 second_fork ...................... passed ... 50
 100 / 100

chapters/compute/processes/drills/tasks/sleepy/README.md

@@ -2,12 +2,13 @@
 
 ## Higher level - Python
 
-Enter the `chapters/compute/processes/drills/tasks/sleepy` directory, run `make skels`, open the `support/src` folder and go through the practice items below.
+Enter the `sleepy/` directory (or `chapters/compute/processes/drills/tasks/sleepy` if you are working directly in the repository).
+Run `make` and then enter `support/` folder and go through the practice items below.
 
 Use the `tests/checker.sh` script to check your solutions.
 
 ```bash
-./checker.sh
+./tests/checker.sh
 sleepy_creator ...................... passed ... 30
 sleepy_creator_wait ................. passed ... 30
 sleepy_creator_c .................... passed ... 40

chapters/compute/processes/drills/tasks/wait-for-me-processes/README.md

@@ -1,6 +1,7 @@
 # Wait for Me
 
-Enter the `chapters/compute/processes/drills/tasks/wait-for-me-processes/` directory, run `make skels`, open the `support/src` folder and go through the practice items below.
+Enter the `wait-for-me/` directory (or `chapters/compute/processes/drills/tasks/wait-for-me/` if you are working directly in the repository).
+Run `make` and then enter `support/` folder and go through the practice items below.
 
 Use the `tests/checker.sh` script to check your solutions.
 
@@ -10,7 +11,7 @@ wait_for_me_processes ...................... passed ... 100
 ```
 
 1. Run the code in `wait_for_me_processes.py` (e.g: `python3 wait_for_me_processes.py`).
-    The parent process creates one child that writes and message to the given file.
+    The parent process creates one child that writes a message to the given file.
     Then the parent reads that message.
     Simple enough, right?
     But running the code raises a `FileNotFoundError`.

chapters/compute/processes/reading/processes.md

@@ -14,7 +14,7 @@ student@os:~$ file /usr/bin/ls
 ```
 
 When you run it, the `ls` binary stored **on the disk** at `/usr/bin/ls` is read by another application called the **loader**.
-The loader spawns a **process** by copying some of the contents `/usr/bin/ls` in memory (such as the `.text`, `.rodata` and `.data` sections).
+The loader spawns a **process** by copying some contents of `/usr/bin/ls` into memory (for example the `.text`, `.rodata` and `.data` sections).
 Using `strace`, we can see the [`execve`](https://man7.org/linux/man-pages/man2/execve.2.html) system call:
 
 ```console

chapters/compute/synchronization/drills/tasks/apache2-simulator-condition/README.md

@@ -22,8 +22,8 @@ There are a few rules though, such as:
 - The consumer must not retrieve data if the buffer is empty.
 - The producer and the consumer can't access the shared buffer at the same time.
 
-Now enter `chapters/compute/synchronization/drills/tasks/apache2-simulator-condition/` and run `make skels`.
-Look at the code in `chapters/compute/synchronization/drills/tasks/apache2-simulator/support/src/producer_consumer.py`.
+Now enter the `apache2-simulator-condition/` directory of the extracted archive (or `chapters/compute/synchronization/drills/tasks/apache2-simulator-condition/` if you are working directly in the repository) and run `make skels`.
+Look at the code in `support/src/producer_consumer.py`.
 We have one producer and one consumer for simplicity.
 Observe that the producer calls `notify()` once there is data available, and the consumer calls `notify()`, when data is read.
 Notice that this call is preceded by an `acquire()` call, and succeeded by a `release()` call.
@@ -58,7 +58,7 @@ Neat!
 So now we have both synchronization **and** signalling.
 This is what conditions are for, ultimately.
 
-Open `chapters/compute/synchronization/drills/tasks/apache2-simulator/support/src/apache2_simulator_condition.py` and follow the TODOs.
+Open the `apache2-simulator-condition/` directory of the extracted archive (or `chapters/compute/synchronization/drills/tasks/apache2-simulator-condition/` if you are working directly in the repository), then go to `support/src/apache2_simulator_condition.py` and follow the TODOs.
 The code is similar to `apache2_simulator_semaphore.py`, but this time we use condition variables as shown in `producer_consumer.py`.
 
 [Quiz](../../../drills/questions/notify-only-with-mutex.md)