feature (kernel): Requesting RAMDISK archive module from bootloader

build.sh

@@ -32,6 +32,11 @@ limine_install() {
     echo ""
 }
 
+generate_initial_ramdisk() {
+  echo "  --> Generating initrd"
+  tar -C ramdisk -cvf build/initrd.tar .
+}
+
 generate_image() {
     echo "  --> Generating Image"
     cd build
@@ -43,6 +48,7 @@ generate_image() {
     cp limine/limine-cd-efi.bin iso
     cp limine/limine.sys        iso
     cp ../limine.cfg            iso
+    cp initrd.tar               iso
     cp cmake/kernel/kernel      iso/kernel.elf
 
     xorriso -as mkisofs -b limine-cd.bin \
@@ -64,6 +70,7 @@ echo "!=====[ NoxOS build script ]=====!"
 workspace_setup
 kernel_build
 [ ! -d "build/limine" ] && limine_install
+generate_initial_ramdisk
 generate_image
 
 echo "!=====[ Finished ]=====!"

kernel/inc/boot/boot_info.h

@@ -23,7 +23,8 @@ typedef struct {
     struct limine_framebuffer_response* framebuffer;
     struct limine_terminal_response*    terminal;
     struct limine_memmap_response*      memory_map;
-    struct limine_kernel_file_response*  kernel_file;
+    struct limine_file*                 kernel_file;
+    struct limine_file*                 ramdisk_file;
     void*                               rsdp;
 } boot_info_T;
 

kernel/src/boot/limine.c

@@ -16,6 +16,7 @@
 #include "boot/boot_info.h"
 #include "utils/logger.h"
 #include "utils/core.h"
+#include "utils/memory.h"
 
 extern void kmain(boot_info_T boot_info);
 
@@ -39,6 +40,11 @@ static volatile struct limine_kernel_file_request kernel_file_request = {
         .revision = 3
 };
 
+static volatile struct limine_module_request module_request = {
+        .id       = LIMINE_MODULE_REQUEST,
+        .revision = 4
+};
+
 
 void _start() {
     boot_info_T boot_info;
@@ -69,7 +75,28 @@ void _start() {
         CORE_HALT_FOREVER
     }
     log(LOG_INFO, "( LimineEntry ) Found Kernel File");
-    boot_info.kernel_file = kernel_file_request.response;
+    boot_info.kernel_file = kernel_file_request.response->kernel_file;
+
+    if (module_request.response == NULL) {
+        log(LOG_ERROR, "( LimineEntry ) no module response!");
+        CORE_HALT_FOREVER
+    }
+    struct limine_file* ramdisk_file = NULL;
+    for (int i = 0; i < module_request.response->module_count; i++) {
+        struct limine_file* file = module_request.response->modules[i];
+        log(LOG_INFO, "( LimineEntry ) MODULE: %s", file->path);
+
+        if (memory_compare(file->path, "/initrd.tar", string_length(file->path))) {
+            ramdisk_file = file;
+        }
+    }
+
+    if (ramdisk_file == NULL) {
+        log(LOG_ERROR, "( LimineEntry ) no ramdisk module!");
+        CORE_HALT_FOREVER
+    }
+    log(LOG_INFO, "( LimineEntry ) Found Ramdisk File");
+    boot_info.ramdisk_file = ramdisk_file;
 
     kmain(boot_info);
 }

limine.cfg

@@ -3,3 +3,4 @@ TIMEOUT=2
 :NoxOS
     PROTOCOL=limine
     KERNEL_PATH=boot:///kernel.elf
+    MODULE_PATH=boot:///initrd.tar

ramdisk/test.txt

@@ -0,0 +1,11 @@
+Lorem ipsum dolor sit amet, consectetur adipiscing elit.
+Proin molestie porta erat eu interdum.
+Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos.
+Cras semper porta ligula quis condimentum.
+Aliquam sed bibendum diam, sit amet gravida orci.
+Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.
+Proin vitae urna vel magna luctus pulvinar.
+Etiam diam diam, vulputate nec eros a, bibendum tristique velit.
+Donec interdum consectetur vehicula.
+Vestibulum gravida varius nisi non fringilla.
+Nam eu accumsan erat, ac condimentum massa.