From 5f610417d028d7d25169709cfc395aa673cbf78c Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Wed, 17 Feb 2021 16:33:43 +0100
Subject: Kernel: Remove kprintf()

There are no remaining users of this API.
---
 Kernel/Arch/i386/Boot/boot.S |  7 -------
 Kernel/kprintf.cpp           | 34 ----------------------------------
 Kernel/kstdio.h              |  1 -
 3 files changed, 42 deletions(-)

diff --git a/Kernel/Arch/i386/Boot/boot.S b/Kernel/Arch/i386/Boot/boot.S
index d0ced81de4..717b3fd00a 100644
--- a/Kernel/Arch/i386/Boot/boot.S
+++ b/Kernel/Arch/i386/Boot/boot.S
@@ -222,18 +222,11 @@ start:
     call init
     add $4, %esp
 
-    pushl $exit_message
-    call kprintf
-    add $4, %esp
     cli
-
 loop:
     hlt
     jmp loop
 
-exit_message:
-    .asciz "Kernel exited."
-
 .extern init_ap
 .type init_ap, @function
 
diff --git a/Kernel/kprintf.cpp b/Kernel/kprintf.cpp
index ccdae4c2f7..e195a6ae43 100644
--- a/Kernel/kprintf.cpp
+++ b/Kernel/kprintf.cpp
@@ -49,23 +49,6 @@ int get_serial_debug()
     return serial_debug;
 }
 
-static void color_on()
-{
-    IO::out8(0xe9, 0x1b);
-    IO::out8(0xe9, '[');
-    IO::out8(0xe9, '3');
-    IO::out8(0xe9, '6');
-    IO::out8(0xe9, 'm');
-}
-
-static void color_off()
-{
-    IO::out8(0xe9, 0x1b);
-    IO::out8(0xe9, '[');
-    IO::out8(0xe9, '0');
-    IO::out8(0xe9, 'm');
-}
-
 static void serial_putch(char ch)
 {
     static bool serial_ready = false;
@@ -111,23 +94,6 @@ static void console_out(char ch)
     }
 }
 
-static void console_putch(char*&, char ch)
-{
-    console_out(ch);
-}
-
-int kprintf(const char* fmt, ...)
-{
-    ScopedSpinLock lock(s_log_lock);
-    color_on();
-    va_list ap;
-    va_start(ap, fmt);
-    int ret = printf_internal(console_putch, nullptr, fmt, ap);
-    va_end(ap);
-    color_off();
-    return ret;
-}
-
 static void buffer_putch(char*& bufptr, char ch)
 {
     *bufptr++ = ch;
diff --git a/Kernel/kstdio.h b/Kernel/kstdio.h
index 72a83d8102..067ba8edc0 100644
--- a/Kernel/kstdio.h
+++ b/Kernel/kstdio.h
@@ -31,7 +31,6 @@
 extern "C" {
 int dbgputstr(const char*, int);
 int kernelputstr(const char*, int);
-int kprintf(const char* fmt, ...) __attribute__((format(printf, 1, 2)));
 int snprintf(char* buf, size_t, const char* fmt, ...) __attribute__((format(printf, 3, 4)));
 void set_serial_debug(bool on_or_off);
 int get_serial_debug();
-- 
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