From a76834b8497c22a11167d17023550f204b657925 Mon Sep 17 00:00:00 2001
From: Lorenzo Torres <lorenzo@sagittarius-a.org>
Date: Fri, 17 Apr 2026 08:47:28 +0200
Subject: [PATCH] changed debug messages on boot

---
 src/kernel.zig | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/src/kernel.zig b/src/kernel.zig
index b60a9ef..4a489a2 100644
--- a/src/kernel.zig
+++ b/src/kernel.zig
@@ -14,12 +14,11 @@ pub export fn kmain(hartid: u64, fdt_phys: usize, console_phys: usize, alloc_sta
 
     const console = Console.initAt(@intCast(mem.physToMmioVirt(console_phys)));
     debug.init(console);
-    debug.print("entered higher-half kernel.\n", .{});
+    debug.print("booting hydra...\n", .{});
 
     const fdt = Fdt.parse(@ptrFromInt(mem.physToDirectMap(fdt_phys))) catch {
         @panic("Unable to parse higher-half FDT.\n");
     };
-    debug.print("fdt remapped at 0x{x}.\n", .{mem.physToDirectMap(fdt_phys)});
 
     const root = fdt.root().?;
     const memory = fdt.memory().?;
@@ -27,19 +26,18 @@ pub export fn kmain(hartid: u64, fdt_phys: usize, console_phys: usize, alloc_sta
     const reg = reg_iter.next().?;
     const detected_memory_end = reg.address + reg.size;
     const memory_end = if (memory_end_hint != 0) @min(detected_memory_end, memory_end_hint) else detected_memory_end;
-    debug.print("detected RAM end at 0x{x}.\n", .{memory_end});
+    debug.print("detected 0x{x} bytes of memory.\n", .{reg.size});
 
     var buddy: mem.BuddyAllocator = .{};
     const alloc_start = mem.physToDirectMap(alloc_start_phys);
     buddy.init(@as([*]u8, @ptrFromInt(alloc_start))[0..memory_end - alloc_start_phys]);
-    debug.print("direct map allocator initialized.\n", .{});
 
     const allocator = buddy.allocator();
     const mmu_type = fdt.mmuType();
 
     if (mmu_type != .bare) {
         var table = isa.PageTable.init(allocator) catch {
-            @panic("Unable to allocate higher-half page table.\n");
+            @panic("unable to allocate higher-half page table.\n");
         };
 
         const kernel_flags: isa.PageTable.EntryFlags = .{
@@ -59,7 +57,7 @@ pub export fn kmain(hartid: u64, fdt_phys: usize, console_phys: usize, alloc_sta
             mmu_type,
             mem.PHYS_MAP_BASE,
         ) catch {
-            @panic("Unable to map higher-half kernel image.\n");
+            @panic("unable to map higher-half kernel image.\n");
         };
 
         table.mapRange(
@@ -71,7 +69,7 @@ pub export fn kmain(hartid: u64, fdt_phys: usize, console_phys: usize, alloc_sta
             mmu_type,
             mem.PHYS_MAP_BASE,
         ) catch {
-            @panic("Unable to map direct map window.\n");
+            @panic("unable to map direct map window.\n");
         };
 
         const console_page = std.mem.alignBackward(u64, @intCast(console_phys), mem.PAGE_SIZE);
@@ -83,11 +81,10 @@ pub export fn kmain(hartid: u64, fdt_phys: usize, console_phys: usize, alloc_sta
             mmu_type,
             mem.PHYS_MAP_BASE,
         ) catch {
-            @panic("Unable to map console MMIO.\n");
+            @panic("unable to map console MMIO.\n");
         };
 
         table.load(mmu_type, mem.PHYS_MAP_BASE);
-        debug.print("reloaded higher-half kernel page table.\n", .{});
     }
 
     while (true) {