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Kernel: Kernel::Panic now dumps stacktrace to com1

This commit is contained in:
Bananymous 2023-01-16 21:50:50 +02:00
parent 7540fa0385
commit b9a4530e54
2 changed files with 20 additions and 0 deletions
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1
kernel/arch/i386/boot.S
View File

@ -117,6 +117,7 @@ _start:
call _init call _init
# call to the kernel itself # call to the kernel itself
xorl %ebp, %ebp
call kernel_main call kernel_main
system_halt: system_halt:

19
kernel/include/kernel/Panic.h
View File

@ -9,12 +9,31 @@
namespace Kernel namespace Kernel
{ {
static void dump_stacktrace()
{
struct stackframe
{
stackframe* ebp;
uint32_t eip;
};
stackframe* frame;
asm volatile("movl %%ebp, %0" : "=r"(frame));
BAN::Formatter::println(Serial::serial_putc, "\e[36mStack trace:");
while (frame)
{
BAN::Formatter::println(Serial::serial_putc, " 0x{8H}", frame->eip);
frame = frame->ebp;
}
}
template<typename... Args> template<typename... Args>
__attribute__((__noreturn__)) __attribute__((__noreturn__))
static void PanicImpl(const char* file, int line, const char* message, Args... args) static void PanicImpl(const char* file, int line, const char* message, Args... args)
{ {
derrorln("Kernel panic at {}:{}", file, line); derrorln("Kernel panic at {}:{}", file, line);
derrorln(message, args...); derrorln(message, args...);
dump_stacktrace();
if (TTY::IsInitialized()) if (TTY::IsInitialized())
{ {
kprint("\e[31mKernel panic at {}:{}\n", file, line); kprint("\e[31mKernel panic at {}:{}\n", file, line);