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Kernel: Colorize debugger output from the kernel.

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This makes it easy to distinguish kernel/userspace dbgprintf()'s. :^)
This commit is contained in:
Andreas Kling 2019-06-22 22:45:16 +02:00
parent db2980c848
commit 639478391b
1 changed files with 21 additions and 0 deletions
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21
Kernel/kprintf.cpp
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@ -6,6 +6,22 @@
#include <Kernel/kstdio.h>
#include <LibC/stdarg.h>
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 console_putch(char*&, char ch)
{
if (!current) {
@ -17,10 +33,12 @@ static void console_putch(char*&, char ch)
int kprintf(const char* fmt, ...)
{
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;
}
@ -44,11 +62,14 @@ static void debugger_putch(char*&, char ch)
IO::out8(0xe9, ch);
}
extern "C" int dbgprintf(const char* fmt, ...)
{
color_on();
va_list ap;
va_start(ap, fmt);
int ret = printf_internal(debugger_putch, nullptr, fmt, ap);
va_end(ap);
color_off();
return ret;
}