adding GRUB iso creating and readme

.gitignore

@@ -69,4 +69,3 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
-

scripts/README.md

@@ -0,0 +1,4 @@
+# Troubleshooting
+
+# ISO when booted with qemu returns `could not read from cdroom code 0004`
+Install `grub-pc` on Fedora or `grub-pc-bin` on Ubuntu and run `create_iso.sh` again

scripts/create_iso.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+set -e
+
+GRUB_CFG="menuentry \"appa-os\" {
+    multiboot /boot/appa-os.bin
+}"
+
+BIN_NAME="appa-os.bin"
+BIN_PATH="$(find "$(pwd)" -iname "$BIN_NAME" -not -path "$(pwd)/isodir/*")"
+
+echo "Found BIN at $BIN_PATH"
+if grub2-file --is-x86-multiboot "$BIN_PATH"; then
+  echo "multiboot confirmed"
+else
+  echo "the file is not multiboot"
+  exit 1
+fi
+
+rm -rf isodir/
+mkdir -p isodir/boot/grub
+echo "$GRUB_CFG" > isodir/boot/grub/grub.cfg
+cp "$BIN_PATH" isodir/boot/$BIN_NAME
+
+grub2-mkrescue -o appa-os.iso isodir

scripts/launch_qemu.py

@@ -3,11 +3,19 @@
 import os
 import time
 import subprocess
-import signal
+import sys
 
-# Define file path and QEMU command
+# Define file paths and default QEMU command
-file_path = "build/src/kernel/appa-os.bin"
+bin_file_path = "build/src/kernel/appa-os.bin"
-qemu_command = ["qemu-system-i386", "-kernel", file_path]
+iso_file_path = "appa-os.iso"
+qemu_command = ["qemu-system-i386"]
+use_iso = "--iso" in sys.argv
+
+# Adjust command based on the --iso argument
+if use_iso:
+    qemu_command += ["-cdrom", iso_file_path]
+else:
+    qemu_command += ["-kernel", bin_file_path]
 
 
 # Function to start QEMU
@@ -18,19 +26,36 @@ def start_qemu():
 
 
 # Function to check if the file has been modified
-def has_been_modified(last_mod_time):
+def has_been_modified(last_mod_time, file_path):
     return os.path.getmtime(file_path) > last_mod_time
 
 
 if __name__ == "__main__":
+    # Choose the file path based on --iso flag
+    file_path = iso_file_path if use_iso else bin_file_path
+
+    # Check if the file exists; if not, wait until it becomes available
+    if not os.path.isfile(file_path):
+        print(f"Warning: {file_path} not found. Waiting for the file to be created...")
+        while not os.path.isfile(file_path):
+            time.sleep(1)
+
     # Initialize variables
     last_mod_time = os.path.getmtime(file_path)
     qemu_process = start_qemu()
 
     try:
         while True:
+            # Check if the file exists
+            if not os.path.isfile(file_path):
+                print(f"Warning: {file_path} not found. Terminating QEMU process...")
+                qemu_process.terminate()
+                qemu_process.wait()
+                time.sleep(1)
+                continue
+
             # Check for file modification
-            if has_been_modified(last_mod_time):
+            if has_been_modified(last_mod_time, file_path):
                 print("File has been modified. Restarting QEMU...")
                 last_mod_time = os.path.getmtime(file_path)
 

src/kernel/grub.cfg

@@ -0,0 +1,3 @@
+menuentry "appa-os" {
+	multiboot /boot/appa-os.bin
+}

src/kernel/version.h

@@ -8,9 +8,9 @@
 
 #define APPA_OS_VERSION_MAJOR 0
 #define APPA_OS_VERSION_MINOR 0
-#define APPA_OS_VERSION_PATCH 75
+#define APPA_OS_VERSION_PATCH 78
 #define APPA_OS_COMMIT_HASH cd01d7d8d36862bc00ae88f7cd185c352a7b7eda
-#define APPA_OS_BUILD_TIMESTAMP 1730492888
+#define APPA_OS_BUILD_TIMESTAMP 1730637275
 
 #endif  // INCLUDE_APPA_OS_VERSION_H_
 

src/libc/version.h

@@ -8,9 +8,9 @@
 
 #define LIB_C_VERSION_MAJOR 0
 #define LIB_C_VERSION_MINOR 0
-#define LIB_C_VERSION_PATCH 87
+#define LIB_C_VERSION_PATCH 90
 #define LIB_C_COMMIT_HASH cd01d7d8d36862bc00ae88f7cd185c352a7b7eda
-#define LIB_C_BUILD_TIMESTAMP 1730492888
+#define LIB_C_BUILD_TIMESTAMP 1730637275
 
 #endif  // INCLUDE_LIB_C_VERSION_H_
 

tools/README.md

@@ -3,25 +3,29 @@
 ## Install dependencies
 
 ### Ubuntu/Debian
+
 ```sh
 sudo apt install build-essential bison flex libgmp3-dev libmpc-dev libmpfr-dev texinfo libisl-dev gcc-multilib
 ```
 
 ### Fedora
+
 ```sh
 sudo dnf install gcc gcc-c++ make bison flex gmp-devel libmpc-devel mpfr-devel texinfo isl-devel
 ```
 
 ### Others
+
 For others please check [OSDev Wiki Installing Dependencies](https://wiki.osdev.org/GCC_Cross-Compiler#Installing_Dependencies) section
 
-
 ## Compile
-> This is compilling `GCC` version `14.x` and `binutils` version `2.43.x`, make sure your OS gcc and binutils are the same major version!
 
+> This is compiling `GCC` version `14.x` and `binutils` version `2.43.x`, make sure your OS gcc and binutils are the same major version!
 
 ### Setting up the environment
+
 First, create the prefix folder, from your project folder execute
+
 ```sh
 mkdir $(pwd)/toolchain/
 export PREFIX="$(pwd)/toolchain/"
@@ -29,11 +33,15 @@ export PATH="$PREFIX/bin:$PATH"
 ```
 
 Set the target to be a i686
+
 ```sh
 export TARGET=i686-elf
 ```
+
 ### Building `binutils`
+
 From your project folder execute:
+
 ```sh
 mkdir -p tools/build/build-binutils
 cd tools/build/build-binutils
@@ -45,7 +53,9 @@ make install
 To check what each flag does consult [OSDev Wiki](https://wiki.osdev.org/GCC_Cross-Compiler#Binutils)
 
 ### Build `GCC`
+
 First, check if `binutils` is reachable from within `$PATH`
+
 ```sh
 which i686-elf-ld | grep $PREFIX -q && echo "Found i686-elf-ld" || echo "NOT found i686-elf-ld"
 ```
@@ -53,6 +63,7 @@ which i686-elf-ld | grep $PREFIX -q && echo "Found i686-elf-ld" || echo "NOT fou
 If you see `Found i686-elf-ld` you are good to got, if not you have made some mistake on the steps above.
 
 Now, compile `GCC` and `libgcc`. From your project folder execute:
+
 ```sh
 mkdir -p tools/build/build-gcc
 cd build-gcc
@@ -63,8 +74,8 @@ make install-gcc
 make install-target-libgcc
 ```
 
-
 ## Finals
+
 Once everything is compile you should have some binaries inside `$PREFIX/bin`, mainly `i686-elf-gcc`, `i686-elf-ld`, `i686-elf-gdb`, `i686-elf-as` and `i686-elf-g++`.
 
 ```sh