feat(kernel): implement SMP multi-core affinity, ACPI subsystem, hardware RNG (RDRAND), and Ring 3 signal fault isolation

include/abi/syscalls.h

@@ -24,6 +24,26 @@
 #define SYS_PROC_SPAWN      19  /* Dynamically load and run ELF process */
 #define SYS_DMA_ALLOC       20  /* Allocate physical DMA buffer */
 #define SYS_MOUSE_GET       21  /* Query PS/2 mouse coordinates and buttons */
+#define SYS_GETRANDOM       22  /* Hardware RNG: fill buffer with random bytes */
+#define SYS_ACPI_INFO       23  /* Query ACPI power and table statistics */
+#define SYS_CPU_INFO        24  /* Query multi-core CPU core count and current core ID */
+
+/* POSIX Process Signals */
+#define SIGHUP   1
+#define SIGINT   2
+#define SIGQUIT  3
+#define SIGILL   4
+#define SIGTRAP  5
+#define SIGABRT  6
+#define SIGBUS   7
+#define SIGFPE   8
+#define SIGKILL  9
+#define SIGUSR1  10
+#define SIGSEGV  11
+#define SIGUSR2  12
+#define SIGPIPE  13
+#define SIGALRM  14
+#define SIGTERM  15
 
 #ifndef __ASSEMBLER__
 
@@ -31,6 +51,20 @@
 extern "C" {
 #endif
 
+typedef struct acpi_info_data {
+    uint32_t found;
+    uint32_t revision;
+    uint32_t lapic_count;
+    uint16_t pm1a_cnt;
+    uint16_t pm1b_cnt;
+} acpi_info_data_t;
+
+typedef struct cpu_info_data {
+    uint32_t cores_online;
+    uint32_t current_cpu_id;
+    uint64_t core_ticks[4];
+} cpu_info_data_t;
+
 typedef struct mouse_data {
     int32_t  x;
     int32_t  y;