Bananymous
/
banan-os
1
1
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Kernel: Debug stacktrace now detects if it kernel panics itself

This commit is contained in:
Bananymous 2023-01-30 18:56:57 +02:00
parent cb3b62d665
commit be502ae616
1 changed files with 17 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
kernel/kernel/Debug.cpp
View File

@ -9,16 +9,29 @@ namespace Debug
{ {
struct stackframe struct stackframe
{ {
stackframe* ebp; stackframe* rbp;
uintptr_t eip; uintptr_t rip;
}; };
stackframe* frame = (stackframe*)__builtin_frame_address(0); 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"); BAN::Formatter::print(Debug::putchar, "\e[36mStack trace:\r\n");
while (frame) while (frame)
{ {
BAN::Formatter::print(Debug::putchar, " {}\r\n", (void*)frame->eip); BAN::Formatter::print(Debug::putchar, " {}\r\n", (void*)frame->rip);
frame = frame->ebp; frame = frame->rbp;
if (frame && frame->rip == first_rip)
{
derrorln("looping kernel panic :(");
return;
}
} }
} }