FUCKYOU

2026-07-31 13:53:49 +08:00
parent 5ea84fac97
commit f52157b7af
241 changed files with 26843 additions and 8155 deletions
@@ -0,0 +1,95 @@
+/* instr.c — Deshab 插桩系统初始化与全局配置管理
+ *
+ * 从 FUCK [debug] 配置段加载插桩参数，初始化全局配置变量。
+ * 在 kernel_main() 中调用 instr_init(&g_boot_cfg) 启用。
+ */
+#include <utsm/instr.h>
+#include <utsm/log.h>
+#include <utsm/types.h>
+#include "ini_parser.h"
+
+/* ---- 全局配置变量（供 instr.h 宏条件判断） ---- */
+u32 g_instr_enabled       = 0;
+u32 g_instr_log_level     = INSTR_LOG_INFO;
+u32 g_instr_probe_enable  = 0;
+u32 g_instr_stat_interval = 256;
+u32 g_instr_module_flags  = 0;
+u64 instr_tsc_per_ms     = 0;
+
+/* ---- 低级 I/O（TSC 校准用，与 arch/x86_64/io.c 独立避免链接冲突） ---- */
+static void instr_outb(u16 port, u8 value) {
+    __asm__ volatile("outb %0, %1" :: "a"(value), "Nd"(port));
+}
+static u8 instr_inb(u16 port) {
+    u8 value;
+    __asm__ volatile("inb %1, %0" : "=a"(value) : "Nd"(port));
+    return value;
+}
+
+/* TSC 读取 */
+u64 instr_rdtsc(void) {
+    u32 lo, hi;
+    __asm__ volatile("rdtsc" : "=a"(lo), "=d"(hi));
+    return ((u64)hi << 32) | lo;
+}
+
+/* TSC 校准：PIT ch0 ~10ms 区间，与 serial.c / dkm_shared.h 相同逻辑 */
+static void instr_tsc_calibrate(void) {
+    instr_outb(0x43, 0x30);       /* ch0, lo+hi, mode 0, binary */
+    instr_outb(0x40, 0x7c);       /* 11932 low = ~10ms */
+    instr_outb(0x40, 0x2e);       /* 11932 high */
+    u64 tsc_start = instr_rdtsc();
+    u16 prev = 0;
+    u64 loops = 0;
+    for (;;) {
+        instr_outb(0x43, 0x00);
+        u16 cur = (u16)instr_inb(0x40) | ((u16)instr_inb(0x40) << 8);
+        if (cur > prev && loops > 10) break;
+        prev = cur;
+        loops++;
+    }
+    u64 tsc_end = instr_rdtsc();
+    instr_tsc_per_ms = (tsc_end - tsc_start) / 10;
+}
+
+void instr_init(const void *cfg_ptr) {
+    const ini_config *cfg = (const ini_config *)cfg_ptr;
+
+    /* 从 FUCK [debug] 段读取配置 */
+    g_instr_enabled       = (u32)ini_get_bool(cfg, "debug", "enabled", 0);
+    g_instr_log_level     = (u32)ini_get_int(cfg, "debug", "log_level", INSTR_LOG_INFO);
+    g_instr_probe_enable  = (u32)ini_get_bool(cfg, "debug", "probe_enable", 0);
+    g_instr_stat_interval = (u32)ini_get_int(cfg, "debug", "stat_summary_interval", 256);
+
+    /* 模块级过滤标志 */
+    g_instr_module_flags = 0;
+    if (ini_get_bool(cfg, "debug", "utsm_trace", 0))
+        g_instr_module_flags |= INSTR_F_UTSM_TRACE;
+    if (ini_get_bool(cfg, "debug", "vmm_trace", 0))
+        g_instr_module_flags |= INSTR_F_VMM_TRACE;
+    if (ini_get_bool(cfg, "debug", "dkm_trace", 0))
+        g_instr_module_flags |= INSTR_F_DKM_TRACE;
+    if (ini_get_bool(cfg, "debug", "dsk_trace", 0))
+        g_instr_module_flags |= INSTR_F_DSK_TRACE;
+    if (ini_get_bool(cfg, "debug", "block_trace", 0))
+        g_instr_module_flags |= INSTR_F_BLOCK_TRACE;
+    if (ini_get_bool(cfg, "debug", "net_trace", 0))
+        g_instr_module_flags |= INSTR_F_NET_TRACE;
+    if (ini_get_bool(cfg, "debug", "input_trace", 0))
+        g_instr_module_flags |= INSTR_F_INPUT_TRACE;
+
+    /* 校准 TSC（独立于 serial.c 的校准，供插桩时间戳使用） */
+    instr_tsc_calibrate();
+
+    /* 初始化探测缓冲 */
+    probe_init(cfg);
+
+    /* 输出初始化状态 */
+    if (g_instr_enabled) {
+        log_info("[INSTR] enabled");
+        log_hex64("[INSTR] log_level=", g_instr_log_level);
+        log_hex64("[INSTR] probe_enable=", g_instr_probe_enable);
+        log_hex64("[INSTR] module_flags=", g_instr_module_flags);
+        log_hex64("[INSTR] tsc_per_ms=", instr_tsc_per_ms);
+    }
+}