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Add kernel logging task

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- Enable creating kernel tasks
- Create kernel task that disables immediate-mode logging and prints
  logs to the console forever
This commit is contained in:
Justin C. Miller
2019-03-20 23:45:01 -07:00
parent 866073ae8a
commit 9067f8d298
14 changed files with 142 additions and 30 deletions
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44
src/kernel/interrupts.cpp
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@@ -111,6 +111,38 @@ isr_handler(uintptr_t return_rsp, cpu_state *regs)
switch (static_cast<isr>(regs->interrupt & 0xff)) {
case isr::isrDebug: {
cons->set_color(11);
cons->puts("\nDebug Exception:\n");
cons->set_color();
uint64_t dr = 0;
__asm__ __volatile__ ("mov %%dr0, %0" : "=r"(dr));
print_regL("dr0", dr);
__asm__ __volatile__ ("mov %%dr1, %0" : "=r"(dr));
print_regM("dr1", dr);
__asm__ __volatile__ ("mov %%dr2, %0" : "=r"(dr));
print_regM("dr2", dr);
__asm__ __volatile__ ("mov %%dr3, %0" : "=r"(dr));
print_regR("dr3", dr);
__asm__ __volatile__ ("mov %%dr6, %0" : "=r"(dr));
print_regL("dr6", dr);
__asm__ __volatile__ ("mov %%dr7, %0" : "=r"(dr));
print_regR("dr7", dr);
print_regL("rip", regs->rip);
print_regM("rsp", regs->user_rsp);
print_regM("fla", regs->rflags);
_halt();
}
break;
case isr::isrGPFault: {
cons->set_color(9);
cons->puts("\nGeneral Protection Fault:\n");
@@ -145,7 +177,6 @@ isr_handler(uintptr_t return_rsp, cpu_state *regs)
print_stacktrace(2);
print_stack(*regs);
*/
}
_halt();
break;
@@ -165,12 +196,9 @@ isr_handler(uintptr_t return_rsp, cpu_state *regs)
uint64_t cr2 = 0;
__asm__ __volatile__ ("mov %%cr2, %0" : "=r"(cr2));
print_reg("cr2", cr2);
print_reg("rsp", regs->user_rsp);
print_reg("rip", regs->rip);
cons->puts("\n");
print_regL("cr2", cr2);
print_regM("rsp", regs->user_rsp);
print_regR("rip", regs->rip);
//print_stacktrace(2);
}
_halt();
@@ -242,7 +270,7 @@ isr_handler(uintptr_t return_rsp, cpu_state *regs)
regs->interrupt, regs->errorcode);
print_regs(*regs);
//print_stacktrace(2);
print_stacktrace(2);
_halt();
}
*reinterpret_cast<uint32_t *>(0xffffff80fee000b0) = 0;