banan-os/kernel/kernel/Debug.cpp

47 lines
876 B
C++

#include <kernel/Debug.h>
#include <kernel/Serial.h>
#include <kernel/TTY.h>
namespace Debug
{
void dump_stack_trace()
{
struct stackframe
{
stackframe* rbp;
uintptr_t rip;
};
stackframe* frame = (stackframe*)__builtin_frame_address(0);
if (!frame)
{
dprintln("Could not get frame address");
return;
}
uintptr_t first_rip = frame->rip;
BAN::Formatter::print(Debug::putchar, "\e[36mStack trace:\r\n");
while (frame)
{
BAN::Formatter::print(Debug::putchar, " {}\r\n", (void*)frame->rip);
frame = frame->rbp;
if (frame && frame->rip == first_rip)
{
derrorln("looping kernel panic :(");
return;
}
}
BAN::Formatter::print(Debug::putchar, "\e[m");
}
void putchar(char ch)
{
if (Serial::is_initialized())
return Serial::putchar(ch);
if (TTY::is_initialized())
return TTY::putchar_current(ch);
}
}