diff options
Diffstat (limited to 'src/kernel/task/task.cpp')
| -rw-r--r-- | src/kernel/task/task.cpp | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/src/kernel/task/task.cpp b/src/kernel/task/task.cpp index 91f802d..2af0441 100644 --- a/src/kernel/task/task.cpp +++ b/src/kernel/task/task.cpp @@ -104,24 +104,40 @@ void schedule() { /* Called when an exception happens. Provides a stack trace if it was in kernel land. Ends the thread for most exceptions, ends the whole process for page faults. */ uint32_t tasking_handleException(registers *regs) { + node *n = current_thread->process->fd.at(0); + vt *vt = (n && n->as_vt() ? n->as_vt() : ke_vt); + if (current_thread == 0) return 0; //No tasking yet - NL; WHERE; ke_vt->writeStr("Exception: `"); + + vt->writeStr("\n"); + vt->writeStr("[ke:"); vt->writeStr(__FILE__); vt->writeStr(":"); + vt->writeDec(__LINE__); vt->writeStr("] "); + vt->writeStr("Exception: "); + char *exception_messages[] = {"Division By Zero","Debug","Non Maskable Interrupt","Breakpoint", "Into Detected Overflow","Out of Bounds","Invalid Opcode","No Coprocessor", "Double Fault", "Coprocessor Segment Overrun","Bad TSS","Segment Not Present","Stack Fault","General Protection Fault", "Page Fault","Unknown Interrupt","Coprocessor Fault","Alignment Check","Machine Check"}; - *ke_vt << exception_messages[regs->int_no]; - *ke_vt << "'\teip:" << regs->eip; + *vt << exception_messages[regs->int_no];; + *vt << "\n\tPID: " << (int)current_thread->process->pid; + *vt << "\n\teip: " << regs->eip; + if (regs->eip >= K_HIGHHALF_ADDR) { - *ke_vt << "\nException in kernel. Stack trace:\n"; - stack_trace(regs->ebp); + *vt << "\n\tException in kernel."; + stack_trace(regs->ebp); // useless + } + *vt << "\n\tTrace:"; + uint32_t *stack = (uint32_t*)regs->ebp, i; + for (i = 0; i < 7 && (size_t)stack < (regs->ebp + 0x4000) && (size_t) stack >= regs->ebp; i++) { + *vt << "\n\t " << (size_t)stack << " next: " << stack[0] << " ret: " << stack[1]; + stack = (uint32_t*)stack[0]; } - *ke_vt << "\n (PID " << current_thread->process->pid << ") "; + if (regs->int_no == 14) { - *ke_vt << ">>> Process exiting.\n"; + *vt << "\n\tKilling process.\n"; thread_exit_stackJmp(EX_PAGEFAULT); } else { - *ke_vt << ">>> Thread exiting.\n"; + *vt << "\n\tKilling thread.\n"; thread_exit_stackJmp(EX_EXCEPTION); } PANIC("This should never have happened. Please report this."); |