FIX: cpuinfo stack overflow and add GUI tab character support

src/core/platform.c

@@ -5,6 +5,7 @@
 #include "limine.h"
 #include <stddef.h>
 #include "platform.h"
+#include "kutils.h"
 static volatile struct limine_hhdm_request hhdm_request __attribute__((used, section(".requests"))) = {
     .id = LIMINE_HHDM_REQUEST,
     .revision = 0,
@@ -80,3 +81,73 @@ void platform_get_cpu_vendor(char *vendor) {
     *((uint32_t *)&p[8]) = ecx;
     p[12] = '\0';
 }
+
+void platform_get_cpu_info(cpu_info_t *info) {
+    uint32_t eax, ebx, ecx, edx;
+    
+    // CPUID leaf 1: basic feature information
+    asm volatile("cpuid" : "=a"(eax), "=b"(ebx), "=c"(ecx), "=d"(edx) : "a"(1));
+    
+    info->stepping = eax & 0xF;
+    info->model = (eax >> 4) & 0xF;
+    info->family = (eax >> 8) & 0xF;
+    info->microcode = (ebx >> 8) & 0xFF;
+    info->flags = ((uint64_t)ecx << 32) | edx;  // ECX and EDX contain feature flags
+    info->cache_size = (ebx >> 16) & 0xFF;      // Cache line size in bytes
+}
+
+void platform_get_cpu_flags(char *flags_str) {
+    uint32_t eax, ebx, ecx, edx;
+    
+    flags_str[0] = '\0';
+    
+    // CPUID leaf 1
+    asm volatile("cpuid" : "=a"(eax), "=b"(ebx), "=c"(ecx), "=d"(edx) : "a"(1));
+    
+    // ECX flags
+    if (ecx & (1 << 0)) k_strcpy(flags_str + k_strlen(flags_str), "sse3 ");
+    if (ecx & (1 << 1)) k_strcpy(flags_str + k_strlen(flags_str), "pclmulqdq ");
+    if (ecx & (1 << 3)) k_strcpy(flags_str + k_strlen(flags_str), "monitor ");
+    if (ecx & (1 << 6)) k_strcpy(flags_str + k_strlen(flags_str), "ssse3 ");
+    if (ecx & (1 << 9)) k_strcpy(flags_str + k_strlen(flags_str), "sdbg ");
+    if (ecx & (1 << 12)) k_strcpy(flags_str + k_strlen(flags_str), "fma ");
+    if (ecx & (1 << 13)) k_strcpy(flags_str + k_strlen(flags_str), "cx16 ");
+    if (ecx & (1 << 19)) k_strcpy(flags_str + k_strlen(flags_str), "sse4_1 ");
+    if (ecx & (1 << 20)) k_strcpy(flags_str + k_strlen(flags_str), "sse4_2 ");
+    if (ecx & (1 << 23)) k_strcpy(flags_str + k_strlen(flags_str), "popcnt ");
+    if (ecx & (1 << 25)) k_strcpy(flags_str + k_strlen(flags_str), "aes ");
+    if (ecx & (1 << 26)) k_strcpy(flags_str + k_strlen(flags_str), "xsave ");
+    if (ecx & (1 << 28)) k_strcpy(flags_str + k_strlen(flags_str), "avx ");
+    
+    // EDX flags
+    if (edx & (1 << 0)) k_strcpy(flags_str + k_strlen(flags_str), "fpu ");
+    if (edx & (1 << 3)) k_strcpy(flags_str + k_strlen(flags_str), "pse ");
+    if (edx & (1 << 4)) k_strcpy(flags_str + k_strlen(flags_str), "tsc ");
+    if (edx & (1 << 6)) k_strcpy(flags_str + k_strlen(flags_str), "pae ");
+    if (edx & (1 << 8)) k_strcpy(flags_str + k_strlen(flags_str), "cx8 ");
+    if (edx & (1 << 9)) k_strcpy(flags_str + k_strlen(flags_str), "apic ");
+    if (edx & (1 << 11)) k_strcpy(flags_str + k_strlen(flags_str), "sep ");
+    if (edx & (1 << 15)) k_strcpy(flags_str + k_strlen(flags_str), "cmov ");
+    if (edx & (1 << 23)) k_strcpy(flags_str + k_strlen(flags_str), "mmx ");
+    if (edx & (1 << 24)) k_strcpy(flags_str + k_strlen(flags_str), "fxsr ");
+    if (edx & (1 << 25)) k_strcpy(flags_str + k_strlen(flags_str), "sse ");
+    if (edx & (1 << 26)) k_strcpy(flags_str + k_strlen(flags_str), "sse2 ");
+    
+    // Extended leaf 0x80000001 for advanced flags
+    asm volatile("cpuid" : "=a"(eax), "=b"(ebx), "=c"(ecx), "=d"(edx) : "a"(0x80000001));
+    
+    if (edx & (1 << 11)) k_strcpy(flags_str + k_strlen(flags_str), "syscall ");
+    if (edx & (1 << 20)) k_strcpy(flags_str + k_strlen(flags_str), "nx ");
+    if (edx & (1 << 26)) k_strcpy(flags_str + k_strlen(flags_str), "pdpe1gb ");
+    if (edx & (1 << 27)) k_strcpy(flags_str + k_strlen(flags_str), "rdtscp ");
+    if (edx & (1 << 29)) k_strcpy(flags_str + k_strlen(flags_str), "lm ");
+    
+    if (ecx & (1 << 0)) k_strcpy(flags_str + k_strlen(flags_str), "lahf_lm ");
+    if (ecx & (1 << 5)) k_strcpy(flags_str + k_strlen(flags_str), "abm ");
+    
+    // Remove trailing space
+    int len = k_strlen(flags_str);
+    if (len > 0 && flags_str[len-1] == ' ') {
+        flags_str[len-1] = '\0';
+    }
+}

src/core/platform.h

@@ -6,10 +6,21 @@
 
 #include <stdint.h>
 
+typedef struct {
+    uint32_t family;
+    uint32_t model;
+    uint32_t stepping;
+    uint32_t microcode;
+    uint64_t flags;
+    uint32_t cache_size;
+} cpu_info_t;
+
 void platform_init(void);
 uint64_t p2v(uint64_t phys);
 uint64_t v2p(uint64_t virt);
 void platform_get_cpu_model(char *model);
 void platform_get_cpu_vendor(char *vendor);
+void platform_get_cpu_info(cpu_info_t *info);
+void platform_get_cpu_flags(char *flags_str);
 
 #endif

src/core/version.c

@@ -16,7 +16,7 @@ void get_os_info(os_info_t *info) {
     const char *os_version = "26.4";
     const char *os_codename = "Voyager";
     const char *kernel_name = "Boredkernel";
-    const char *kernel_version = "4.0.0-stable";
+    const char *kernel_version = "4.0.1-stable";
     const char *build_date = __DATE__;
     const char *build_time = __TIME__;
     const char *build_arch = "x86_64";

src/fs/procfs.c

@@ -4,6 +4,7 @@
 #include "../dev/disk.h"
 #include "memory_manager.h"
 #include "core/kutils.h"
+#include "core/platform.h"
 
 typedef struct {
     uint32_t pid;
@@ -55,7 +56,8 @@ int procfs_read(void *fs_private, void *handle, void *buf, int size) {
     procfs_handle_t *h = (procfs_handle_t*)handle;
     if (!h) return -1;
 
-    char out[1024];
+    char *out = (char*)kmalloc(16384);
+    if (!out) return -1;
     out[0] = 0;
 
     if (h->pid == 0xFFFFFFFF) {
@@ -88,34 +90,173 @@ int procfs_read(void *fs_private, void *handle, void *buf, int size) {
         } else if (k_strcmp(h->type, "cpuinfo") == 0) {
             extern uint32_t smp_cpu_count(void);
             extern void platform_get_cpu_model(char *model);
-            char model[64];
-            platform_get_cpu_model(model);
+            extern void platform_get_cpu_vendor(char *vendor);
+            extern void platform_get_cpu_info(cpu_info_t *info);
+            extern void platform_get_cpu_flags(char *flags_str);
             
-            k_strcpy(out, "Processor: ");
-            k_strcpy(out + k_strlen(out), model);
-            k_strcpy(out + k_strlen(out), "\nCores: ");
-            char c_s[16]; k_itoa(smp_cpu_count(), c_s);
-            k_strcpy(out + k_strlen(out), c_s);
-            k_strcpy(out + k_strlen(out), "\nArchitecture: x86_64\n");
+            char model[64];
+            char vendor[16];
+            char flags[1024];
+            cpu_info_t info;
+            
+            platform_get_cpu_model(model);
+            platform_get_cpu_vendor(vendor);
+            platform_get_cpu_info(&info);
+            platform_get_cpu_flags(flags);
+            
+            uint32_t cpu_count = smp_cpu_count();
+            out[0] = '\0';
+            
+            // Output info for each processor
+            for (uint32_t i = 0; i < cpu_count; i++) {
+                char buf[32];
+                
+                k_strcpy(out + k_strlen(out), "processor\t: ");
+                k_itoa(i, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "vendor_id\t: ");
+                k_strcpy(out + k_strlen(out), vendor);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "cpu family\t: ");
+                k_itoa(info.family, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "model\t\t: ");
+                k_itoa(info.model, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "model name\t: ");
+                k_strcpy(out + k_strlen(out), model);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "stepping\t: ");
+                k_itoa(info.stepping, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "microcode\t: 0x");
+                char hex[16];
+                int temp = info.microcode;
+                int hex_pos = 0;
+                for (int j = 7; j >= 0; j--) {
+                    int digit = (temp >> (j * 4)) & 0xF;
+                    hex[hex_pos++] = digit < 10 ? '0' + digit : 'a' + (digit - 10);
+                }
+                hex[hex_pos] = '\0';
+                k_strcpy(out + k_strlen(out), hex);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "cache size\t: ");
+                k_itoa(info.cache_size, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), " KB\n");
+                
+                k_strcpy(out + k_strlen(out), "physical id\t: 0\n");
+                k_strcpy(out + k_strlen(out), "siblings\t: ");
+                k_itoa(cpu_count, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "core id\t\t: ");
+                k_itoa(i, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "cpu cores\t: ");
+                k_itoa(cpu_count, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "apicid\t\t: ");
+                k_itoa(i, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "initial apicid\t: ");
+                k_itoa(i, buf);
+                k_strcpy(out + k_strlen(out), buf);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "fpu\t\t: yes\n");
+                k_strcpy(out + k_strlen(out), "fpu_exception\t: yes\n");
+                
+                k_strcpy(out + k_strlen(out), "cpuid level\t: 13\n");
+                
+                k_strcpy(out + k_strlen(out), "wp\t\t: yes\n");
+                
+                k_strcpy(out + k_strlen(out), "flags\t\t: ");
+                k_strcpy(out + k_strlen(out), flags);
+                k_strcpy(out + k_strlen(out), "\n");
+                
+                k_strcpy(out + k_strlen(out), "bugs\t\t: \n");
+                k_strcpy(out + k_strlen(out), "bogomips\t: 4800.00\n");
+                
+                if (i < cpu_count - 1) {
+                    k_strcpy(out + k_strlen(out), "\n");
+                }
+            }
         } else if (k_strcmp(h->type, "meminfo") == 0) {
             extern MemStats memory_get_stats(void);
             MemStats stats = memory_get_stats();
-            k_strcpy(out, "MemTotal: ");
-            char m_s[32]; k_itoa(stats.total_memory / 1024, m_s);
+            char m_s[32];
+            
+            k_strcpy(out, "MemTotal:\t");
+            k_itoa(stats.total_memory / 1024, m_s);
             k_strcpy(out + k_strlen(out), m_s);
-            k_strcpy(out + k_strlen(out), " kB\nMemFree: ");
+            k_strcpy(out + k_strlen(out), " kB\n");
+            
+            k_strcpy(out + k_strlen(out), "MemFree:\t");
             k_itoa(stats.available_memory / 1024, m_s);
             k_strcpy(out + k_strlen(out), m_s);
-            k_strcpy(out + k_strlen(out), " kB\nMemUsed: ");
+            k_strcpy(out + k_strlen(out), " kB\n");
+            
+            k_strcpy(out + k_strlen(out), "MemAvailable:\t");
+            k_itoa(stats.available_memory / 1024, m_s);
+            k_strcpy(out + k_strlen(out), m_s);
+            k_strcpy(out + k_strlen(out), " kB\n");
+            
+            k_strcpy(out + k_strlen(out), "Buffers:\t0 kB\n");
+            k_strcpy(out + k_strlen(out), "Cached:\t\t0 kB\n");
+            
+            k_strcpy(out + k_strlen(out), "MemUsed:\t");
             k_itoa(stats.used_memory / 1024, m_s);
             k_strcpy(out + k_strlen(out), m_s);
-            k_strcpy(out + k_strlen(out), " kB\nPeak: ");
+            k_strcpy(out + k_strlen(out), " kB\n");
+            
+            k_strcpy(out + k_strlen(out), "MemPeak:\t");
             k_itoa(stats.peak_memory_used / 1024, m_s);
             k_strcpy(out + k_strlen(out), m_s);
-            k_strcpy(out + k_strlen(out), " kB\nBlocks: ");
+            k_strcpy(out + k_strlen(out), " kB\n");
+            
+            k_strcpy(out + k_strlen(out), "SwapTotal:\t0 kB\n");
+            k_strcpy(out + k_strlen(out), "SwapFree:\t0 kB\n");
+            
+            k_strcpy(out + k_strlen(out), "Dirty:\t\t0 kB\n");
+            k_strcpy(out + k_strlen(out), "Writeback:\t0 kB\n");
+            k_strcpy(out + k_strlen(out), "AnonPages:\t");
+            k_itoa(stats.used_memory / 1024, m_s);
+            k_strcpy(out + k_strlen(out), m_s);
+            k_strcpy(out + k_strlen(out), " kB\n");
+            
+            k_strcpy(out + k_strlen(out), "Mapped:\t\t0 kB\n");
+            k_strcpy(out + k_strlen(out), "Shmem:\t\t0 kB\n");
+            
+            k_strcpy(out + k_strlen(out), "Blocks:\t\t");
             k_itoa(stats.allocated_blocks, m_s);
             k_strcpy(out + k_strlen(out), m_s);
-            k_strcpy(out + k_strlen(out), "\nFragmentation: ");
+            k_strcpy(out + k_strlen(out), "\n");
+            
+            k_strcpy(out + k_strlen(out), "FreeBlocks:\t");
+            k_itoa(stats.free_blocks, m_s);
+            k_strcpy(out + k_strlen(out), m_s);
+            k_strcpy(out + k_strlen(out), "\n");
+            
+            k_strcpy(out + k_strlen(out), "Fragmentation:\t");
             k_itoa(stats.fragmentation_percent, m_s);
             k_strcpy(out + k_strlen(out), m_s);
             k_strcpy(out + k_strlen(out), "%\n");
@@ -123,20 +264,35 @@ int procfs_read(void *fs_private, void *handle, void *buf, int size) {
             extern int disk_get_count(void);
             extern Disk* disk_get_by_index(int index);
             int dcount = disk_get_count();
-            k_strcpy(out, "Block Devices:\n");
+            out[0] = '\0';
+            
+            k_strcpy(out, "Character devices:\n");
+            k_strcpy(out + k_strlen(out), "  1 mem\n");
+            k_strcpy(out + k_strlen(out), "  4 tty\n");
+            k_strcpy(out + k_strlen(out), "  5 cua\n");
+            k_strcpy(out + k_strlen(out), "  7 vcs\n");
+            k_strcpy(out + k_strlen(out), "  8 stdin\n");
+            k_strcpy(out + k_strlen(out), " 13 input\n");
+            k_strcpy(out + k_strlen(out), " 14 sound\n");
+            k_strcpy(out + k_strlen(out), " 29 fb\n");
+            k_strcpy(out + k_strlen(out), "189 usb\n\n");
+            
+            k_strcpy(out + k_strlen(out), "Block devices:\n");
             for (int i = 0; i < dcount; i++) {
                 Disk *d = disk_get_by_index(i);
-                if (d) {
-                    k_strcpy(out + k_strlen(out), "  - ");
+                if (d && !d->is_partition) {
+                    k_strcpy(out + k_strlen(out), "  8 ");
                     k_strcpy(out + k_strlen(out), d->devname);
                     k_strcpy(out + k_strlen(out), "\n");
                 }
             }
+            k_strcpy(out + k_strlen(out), " 11 sr\n");
+            k_strcpy(out + k_strlen(out), "253 virtblk\n");
         }
     }
  else {
         process_t *proc = process_get_by_pid(h->pid);
-        if (!proc) return -1;
+        if (!proc) { kfree(out); return -1; }
 
         if (k_strcmp(h->type, "name") == 0 || k_strcmp(h->type, "cmdline") == 0) {
             k_strcpy(out, proc->name);
@@ -165,13 +321,14 @@ int procfs_read(void *fs_private, void *handle, void *buf, int size) {
     }
 
     int len = k_strlen(out);
-    if (h->offset >= len) return 0;
+    if (h->offset >= len) { kfree(out); return 0; }
 
     int to_copy = len - h->offset;
     if (to_copy > size) to_copy = size;
 
     k_memcpy(buf, out + h->offset, to_copy);
     h->offset += to_copy;
+    kfree(out);
     return to_copy;
 }
 

src/sys/syscall.c

@@ -415,10 +415,18 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
                             int baseline = uy + font_manager_get_font_ascent_scaled(font, font->pixel_height) - 2;
                             int cur_x = ux;
                             const char *s = kernel_str;
+                            int start_x = cur_x;
                             while (*s) {
                                 uint32_t codepoint = utf8_decode(&s);
-                                font_manager_render_char_scaled(font, cur_x, baseline, codepoint, color, font->pixel_height, put_pixel);
-                                cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, font->pixel_height);
+                                if (codepoint == '\n') {
+                                    cur_x = start_x;
+                                    baseline += font_manager_get_font_line_height_scaled(font, font->pixel_height);
+                                } else if (codepoint == '\t') {
+                                    cur_x += font_manager_get_codepoint_width_scaled(font, ' ', font->pixel_height) * 4;
+                                } else {
+                                    font_manager_render_char_scaled(font, cur_x, baseline, codepoint, color, font->pixel_height, put_pixel);
+                                    cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, font->pixel_height);
+                                }
                             }
                         } else {
                             draw_string(ux, uy, kernel_str, color);
@@ -430,10 +438,18 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
                         int baseline = win->y + uy + font_manager_get_font_ascent_scaled(font, font->pixel_height) - 2;
                         int cur_x = win->x + ux;
                         const char *s = kernel_str;
+                        int start_x = cur_x;
                         while (*s) {
                             uint32_t codepoint = utf8_decode(&s);
-                            font_manager_render_char_scaled(font, cur_x, baseline, codepoint, color, font->pixel_height, put_pixel);
-                            cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, font->pixel_height);
+                            if (codepoint == '\n') {
+                                cur_x = start_x;
+                                baseline += font_manager_get_font_line_height_scaled(font, font->pixel_height);
+                            } else if (codepoint == '\t') {
+                                cur_x += font_manager_get_codepoint_width_scaled(font, ' ', font->pixel_height) * 4;
+                            } else {
+                                font_manager_render_char_scaled(font, cur_x, baseline, codepoint, color, font->pixel_height, put_pixel);
+                                cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, font->pixel_height);
+                            }
                         }
                     } else {
                         draw_string(win->x + ux, win->y + uy, kernel_str, color);
@@ -519,10 +535,18 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
                             int baseline = uy + font_manager_get_font_ascent_scaled(font, scale) - 2;
                             int cur_x = ux;
                             const char *s = kernel_str;
+                            int start_x = cur_x;
                             while (*s) {
                                 uint32_t codepoint = utf8_decode(&s);
-                                font_manager_render_char_scaled(font, cur_x, baseline, codepoint, color, scale, put_pixel);
-                                cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, scale);
+                                if (codepoint == '\n') {
+                                    cur_x = start_x;
+                                    baseline += font_manager_get_font_line_height_scaled(font, scale);
+                                } else if (codepoint == '\t') {
+                                    cur_x += font_manager_get_codepoint_width_scaled(font, ' ', scale) * 4;
+                                } else {
+                                    font_manager_render_char_scaled(font, cur_x, baseline, codepoint, color, scale, put_pixel);
+                                    cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, scale);
+                                }
                             }
                         } else {
                             draw_string_scaled(ux, uy, kernel_str, color, scale);
@@ -534,10 +558,18 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
                         int baseline = win->y + uy + font_manager_get_font_ascent_scaled(font, scale) - 2;
                         int cur_x = win->x + ux;
                         const char *s = kernel_str;
+                        int start_x = cur_x;
                         while (*s) {
                             uint32_t codepoint = utf8_decode(&s);
-                            font_manager_render_char_scaled(font, cur_x, baseline, codepoint, color, scale, put_pixel);
-                            cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, scale);
+                            if (codepoint == '\n') {
+                                cur_x = start_x;
+                                baseline += font_manager_get_font_line_height_scaled(font, scale);
+                            } else if (codepoint == '\t') {
+                                cur_x += font_manager_get_codepoint_width_scaled(font, ' ', scale) * 4;
+                            } else {
+                                font_manager_render_char_scaled(font, cur_x, baseline, codepoint, color, scale, put_pixel);
+                                cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, scale);
+                            }
                         }
                     } else {
                         draw_string_scaled(win->x + ux, win->y + uy, kernel_str, color, scale);
@@ -595,11 +627,19 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
                             int baseline = uy + font_manager_get_font_ascent_scaled(font, scale) - 2;
                             int cur_x = ux;
                             const char *s = kernel_str;
+                            int start_x = cur_x;
                             while (*s) {
                                 extern void font_manager_render_char_sloped(ttf_font_t *font, int x, int y, uint32_t codepoint, uint32_t color, float scale, float slope, void (*put_pixel_fn)(int, int, uint32_t));
                                 uint32_t codepoint = utf8_decode(&s);
-                                font_manager_render_char_sloped(font, cur_x, baseline, codepoint, color, scale, slope, put_pixel);
-                                cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, scale);
+                                if (codepoint == '\n') {
+                                    cur_x = start_x;
+                                    baseline += font_manager_get_font_line_height_scaled(font, scale);
+                                } else if (codepoint == '\t') {
+                                    cur_x += font_manager_get_codepoint_width_scaled(font, ' ', scale) * 4;
+                                } else {
+                                    font_manager_render_char_sloped(font, cur_x, baseline, codepoint, color, scale, slope, put_pixel);
+                                    cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, scale);
+                                }
                             }
                         } else {
                             draw_string_scaled_sloped(ux, uy, kernel_str, color, scale, slope);
@@ -611,11 +651,19 @@ static uint64_t syscall_handler_inner(registers_t *regs) {
                         int baseline = win->y + uy + font_manager_get_font_ascent_scaled(font, scale) - 2;
                         int cur_x = win->x + ux;
                         const char *s = kernel_str;
+                        int start_x = cur_x;
                         while (*s) {
                             extern void font_manager_render_char_sloped(ttf_font_t *font, int x, int y, uint32_t codepoint, uint32_t color, float scale, float slope, void (*put_pixel_fn)(int, int, uint32_t));
                             uint32_t codepoint = utf8_decode(&s);
-                            font_manager_render_char_sloped(font, cur_x, baseline, codepoint, color, scale, slope, put_pixel);
-                            cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, scale);
+                            if (codepoint == '\n') {
+                                cur_x = start_x;
+                                baseline += font_manager_get_font_line_height_scaled(font, scale);
+                            } else if (codepoint == '\t') {
+                                cur_x += font_manager_get_codepoint_width_scaled(font, ' ', scale) * 4;
+                            } else {
+                                font_manager_render_char_sloped(font, cur_x, baseline, codepoint, color, scale, slope, put_pixel);
+                                cur_x += font_manager_get_codepoint_width_scaled(font, codepoint, scale);
+                            }
                         }
                     } else {
                         draw_string_scaled_sloped(win->x + ux, win->y + uy, kernel_str, color, scale, slope);

src/sys/sysfs_init.c

@@ -7,6 +7,7 @@
 #include "core/kutils.h"
 #include "wm/graphics.h"
 #include "core/platform.h"
+#include "dev/disk.h"
 
 // --- Helper: itoa ---
 static void sys_itoa(int n, char *s) {
@@ -131,15 +132,172 @@ static int read_pci_bus(char *buf, int size, int offset) {
 
 // --- CPU System Implementation ---
 static int read_cpu_info(char *buf, int size, int offset) {
+    char *out = (char*)kmalloc(16384);
+    if (!out) return 0;
+    out[0] = 0;
+    
+    char vendor[16];
+    char model[64];
+    char flags[1024];
+    cpu_info_t info;
+    
+    platform_get_cpu_vendor(vendor);
+    platform_get_cpu_model(model);
+    platform_get_cpu_info(&info);
+    platform_get_cpu_flags(flags);
+    
+    uint32_t cpu_count = smp_cpu_count();
+    
+    for (uint32_t i = 0; i < cpu_count; i++) {
+        char c_s[32];
+        
+        k_strcpy(out + k_strlen(out), "processor\t: ");
+        k_itoa(i, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "vendor_id\t: ");
+        k_strcpy(out + k_strlen(out), vendor);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "cpu family\t: ");
+        k_itoa(info.family, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "model\t\t: ");
+        k_itoa(info.model, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "model name\t: ");
+        k_strcpy(out + k_strlen(out), model);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "stepping\t: ");
+        k_itoa(info.stepping, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "microcode\t: 0x");
+        char hex[16];
+        int temp = info.microcode;
+        int hex_pos = 0;
+        for (int j = 7; j >= 0; j--) {
+            int digit = (temp >> (j * 4)) & 0xF;
+            hex[hex_pos++] = digit < 10 ? '0' + digit : 'a' + (digit - 10);
+        }
+        hex[hex_pos] = '\0';
+        k_strcpy(out + k_strlen(out), hex);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "cache size\t: ");
+        k_itoa(info.cache_size, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), " KB\n");
+        
+        k_strcpy(out + k_strlen(out), "physical id\t: 0\n");
+        k_strcpy(out + k_strlen(out), "siblings\t: ");
+        k_itoa(cpu_count, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "core id\t\t: ");
+        k_itoa(i, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "cpu cores\t: ");
+        k_itoa(cpu_count, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "apicid\t\t: ");
+        k_itoa(i, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "initial apicid\t: ");
+        k_itoa(i, c_s);
+        k_strcpy(out + k_strlen(out), c_s);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "fpu\t\t: yes\n");
+        k_strcpy(out + k_strlen(out), "fpu_exception\t: yes\n");
+        
+        k_strcpy(out + k_strlen(out), "cpuid level\t: 13\n");
+        
+        k_strcpy(out + k_strlen(out), "wp\t\t: yes\n");
+        
+        k_strcpy(out + k_strlen(out), "flags\t\t: ");
+        k_strcpy(out + k_strlen(out), flags);
+        k_strcpy(out + k_strlen(out), "\n");
+        
+        k_strcpy(out + k_strlen(out), "bugs\t\t: \n");
+        k_strcpy(out + k_strlen(out), "bogomips\t: 4800.00\n");
+        
+        if (i < cpu_count - 1) {
+            k_strcpy(out + k_strlen(out), "\n");
+        }
+    }
+    
+    int len = (int)k_strlen(out);
+    if (offset >= len) { kfree(out); return 0; }
+    int to_copy = len - offset;
+    if (to_copy > size) to_copy = size;
+    k_memcpy(buf, out + offset, to_copy);
+    kfree(out);
+    return to_copy;
+}
+
+// --- Devices Implementation ---
+static int read_sys_devices(char *buf, int size, int offset) {
+    char out[2048];
+    k_memset(out, 0, 2048);
+    
+    extern int disk_get_count(void);
+    extern Disk* disk_get_by_index(int index);
+    
+    int dcount = disk_get_count();
+    k_strcpy(out, "Block Devices:\n");
+    for (int i = 0; i < dcount; i++) {
+        Disk *d = disk_get_by_index(i);
+        if (d && !d->is_partition) {
+            k_strcpy(out + k_strlen(out), "  ");
+            k_strcpy(out + k_strlen(out), d->devname);
+            k_strcpy(out + k_strlen(out), " - ");
+            k_strcpy(out + k_strlen(out), d->label);
+            k_strcpy(out + k_strlen(out), "\n");
+        }
+    }
+    
+    k_strcpy(out + k_strlen(out), "\nCharacter Devices:\n");
+    k_strcpy(out + k_strlen(out), "  console - System console\n");
+    k_strcpy(out + k_strlen(out), "  tty - Terminal devices\n");
+    k_strcpy(out + k_strlen(out), "  psmouse - Mouse input\n");
+    k_strcpy(out + k_strlen(out), "  keyboard - Keyboard input\n");
+    k_strcpy(out + k_strlen(out), "  framebuffer - Framebuffer device\n");
+    
+    int len = (int)k_strlen(out);
+    if (offset >= len) return 0;
+    int to_copy = len - offset;
+    if (to_copy > size) to_copy = size;
+    k_memcpy(buf, out + offset, to_copy);
+    return to_copy;
+}
+
+// --- Class Implementation ---
+static int read_sys_class(char *buf, int size, int offset) {
     char out[1024];
     k_memset(out, 0, 1024);
-    char vendor[16];
-    platform_get_cpu_vendor(vendor);
-    k_strcpy(out + k_strlen(out), vendor);
-    k_strcpy(out + k_strlen(out), "\nCores: ");
-    char c_s[16]; k_itoa(smp_cpu_count(), c_s);
-    k_strcpy(out + k_strlen(out), c_s);
-    k_strcpy(out + k_strlen(out), "\nSpeed: ~3.00 GHz\nFeatures: sse sse2 sse3 apic smp\n");
+    
+    k_strcpy(out, "Classes:\n");
+    k_strcpy(out + k_strlen(out), "  block - Block device class\n");
+    k_strcpy(out + k_strlen(out), "  input - Input device class\n");
+    k_strcpy(out + k_strlen(out), "  tty - TTY device class\n");
+    k_strcpy(out + k_strlen(out), "  sound - Sound device class\n");
+    k_strcpy(out + k_strlen(out), "  video - Video device class\n");
+    k_strcpy(out + k_strlen(out), "  net - Network device class\n");
     
     int len = (int)k_strlen(out);
     if (offset >= len) return 0;
@@ -174,6 +332,12 @@ void sysfs_init_subsystems(void) {
     subsystem_register("class", &class);
     subsystem_register("kernel/debug", &debug);
     
+    // Devices info
+    subsystem_add_file(devices, "list", read_sys_devices, NULL);
+    
+    // Class info
+    subsystem_add_file(class, "list", read_sys_class, NULL);
+    
     // CPU info
     subsystem_add_file(kernel, "cpuinfo", read_cpu_info, NULL);
     

src/wm/font_manager.c

@@ -330,6 +330,13 @@ int font_manager_get_string_width_scaled(ttf_font_t *font, const char *s, float
     while (*s) {
         int advance, lsb;
         uint32_t codepoint = utf8_decode(&s);
+        
+        if (codepoint == '\t') {
+            stbtt_GetCodepointHMetrics(info, ' ', &advance, &lsb);
+            width += (int)(advance * real_scale + 0.5f) * 4;
+            continue;
+        }
+        
         stbtt_fontinfo *current_info = info;
         float current_scale = real_scale;
         
@@ -350,6 +357,12 @@ int font_manager_get_codepoint_width_scaled(ttf_font_t *font, uint32_t codepoint
     stbtt_fontinfo *info = (stbtt_fontinfo *)font->info;
     float real_scale = stbtt_ScaleForPixelHeight(info, scale);
     
+    if (codepoint == '\t') {
+        int advance, lsb;
+        stbtt_GetCodepointHMetrics(info, ' ', &advance, &lsb);
+        return (int)(advance * real_scale + 0.5f) * 4;
+    }
+    
     if (stbtt_FindGlyphIndex(info, codepoint) == 0 && fallback_font) {
         info = (stbtt_fontinfo *)fallback_font->info;
         real_scale = stbtt_ScaleForPixelHeight(info, scale);

src/wm/graphics.c

@@ -555,6 +555,8 @@ void draw_string_bitmap(int x, int y, const char *str, uint32_t color) {
         if (*s == '\n') {
             cur_x = x;
             cur_y += 10;
+        } else if (*s == '\t') {
+            cur_x += 8 * 4;
         } else {
             draw_char_bitmap(cur_x, cur_y, *s, color);
             cur_x += 8;
@@ -583,8 +585,9 @@ int graphics_get_string_width_scaled(const char *s, float scale) {
     }
     int len = 0;
     while (s && *s) {
-        utf8_decode(&s);
-        len++;
+        uint32_t codepoint = utf8_decode(&s);
+        if (codepoint == '\t') len += 4;
+        else len++;
     }
     return len * 8; // Fallback bitmap width
 }
@@ -607,6 +610,8 @@ void draw_string_scaled(int x, int y, const char *s, uint32_t color, float scale
             if (codepoint == '\n') {
                 cur_x = x;
                 baseline += line_height;
+            } else if (codepoint == '\t') {
+                cur_x += font_manager_get_codepoint_width_scaled(g_current_ttf, ' ', scale) * 4;
             } else {
                 font_manager_render_char_scaled(g_current_ttf, cur_x, baseline, codepoint, color, scale, put_pixel);
                 cur_x += font_manager_get_codepoint_width_scaled(g_current_ttf, codepoint, scale);
@@ -621,6 +626,8 @@ void draw_string_scaled(int x, int y, const char *s, uint32_t color, float scale
         if (codepoint == '\n') {
             cur_x = x;
             cur_y += 10;
+        } else if (codepoint == '\t') {
+            cur_x += 8 * 4;
         } else {
             draw_char(cur_x, cur_y, (codepoint < 128) ? (char)codepoint : '?', color);
             cur_x += 8;
@@ -646,6 +653,8 @@ void draw_string_scaled_sloped(int x, int y, const char *s, uint32_t color, floa
             if (codepoint == '\n') {
                 cur_x = x;
                 baseline += line_height;
+            } else if (codepoint == '\t') {
+                cur_x += font_manager_get_codepoint_width_scaled(g_current_ttf, ' ', scale) * 4;
             } else {
                 font_manager_render_char_sloped(g_current_ttf, cur_x, baseline, codepoint, color, scale, slope, put_pixel);
                 cur_x += font_manager_get_codepoint_width_scaled(g_current_ttf, codepoint, scale);