Integrate uACPI

kernel/kmain.c

@@ -10,6 +10,43 @@
 #include "vfs/vfs.h"
 #include "baseimg/baseimg.h"
 #include "storedev/storedev.h"
+#include "util/util.h"
+
+const char *human_size(uint64_t bytes, char *buf, size_t bufsize) {
+  static const char *units[] = { "B", "KiB", "MiB", "GiB", "TiB", "PiB" };
+  int unit = 0;
+
+  // Scale down until value fits nicely
+  uint64_t rem = 0;
+  while (bytes >= 1024 && unit < (int)(sizeof(units)/sizeof(units[0])) - 1) {
+    rem = bytes % 1024;
+    bytes /= 1024;
+    unit++;
+  }
+
+  if (unit == 0) {
+    // Just bytes
+    ksnprintf(buf, bufsize, "%llu %s", (unsigned long long)bytes, units[unit]);
+  } else {
+    // Show one decimal place without using floats
+    // Multiply remainder by 10 to get first decimal digit
+    uint64_t frac = (rem * 10 + 512) / 1024; // rounded
+    if (frac == 10) { // handle carry, e.g. 1023.9 -> 1024.0
+      bytes++;
+      frac = 0;
+    }
+
+    if (frac > 0) ksnprintf(buf, bufsize, "%llu.%llu %s", (unsigned long long)bytes, (unsigned long long)frac, units[unit]);
+    else ksnprintf(buf, bufsize, "%llu %s", (unsigned long long)bytes, units[unit]);
+  }
+
+  return buf;
+}
+
+void log_bootinfo(void) {
+  char buf[100];
+  LOG("kmain", "Memory total = %s\n", human_size(BOOT_INFO.memmap_total, buf, sizeof(buf)));
+}
 
 static volatile LIMINE_BASE_REVISION(2);
 
@@ -20,10 +57,12 @@ void kmain(void) {
 
   bootinfo_init();
   term_init();
+  log_bootinfo();
   hal_init();
   pmm_init();
   paging_init();
   dlmalloc_check();
+  hal_init_withmalloc();
   storedev_init();
   baseimg_init();
   vfs_init();