gwdev/Chroma
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add opcode handling.. started debugging memory management.

Browse Source
This commit is contained in:
Curle 2020-10-30 22:24:59 +00:00
parent fe15a79fc3
commit 0c0f52dbb9
Signed by: TheCurle
GPG Key ID: 5942F13718443F79
1 changed files with 16 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
chroma/system/interrupts.c
View File

@ -299,7 +299,18 @@ __attribute__((interrupt)) void ISR5Handler(INTERRUPT_FRAME* Frame) {
ISR_Common(Frame, 5);
}
__attribute__((interrupt)) void ISR6Handler(INTERRUPT_FRAME* Frame) {
ISR_Common(Frame, 6);
__asm__ __volatile__("sti");
SerialPrintf("Invalid Opcode!\n");
size_t retAddr = 0;
size_t opcodeAddr = Frame->rip;
__asm__ __volatile__("popq %%rax\n\t" "pushq %%rax": "=a" (retAddr) : :);
SerialPrintf("Opcode is at 0x%x, called from 0x%p\r\n", opcodeAddr, retAddr);
for(;;) {}
}
__attribute__((interrupt)) void ISR7Handler(INTERRUPT_FRAME* Frame) {
ISR_Common(Frame, 7);
@ -328,11 +339,11 @@ __attribute__((interrupt)) void ISR14Handler(INTERRUPT_FRAME* Frame, size_t Erro
SerialPrintf("Page fault! Caused by: [\r\n");
//size_t FaultAddr = ReadControlRegister(2);
uint8_t FaultPres = ErrorCode & 0x1;
uint8_t FaultRW = ErrorCode & 0x2;
uint8_t FaultUser = ErrorCode & 0x4;
uint8_t FaultPres = ErrorCode & 0x1;
uint8_t FaultRW = ErrorCode & 0x2;
uint8_t FaultUser = ErrorCode & 0x4;
uint8_t FaultReserved = ErrorCode & 0x8;
uint8_t FaultInst = ErrorCode & 0x10;
uint8_t FaultInst = ErrorCode & 0x10;
if(!FaultPres) SerialPrintf("Accessed a page that isn't present.\r\n");
if(FaultRW || FaultUser) SerialPrintf("Accessed a Read-Only page.\r\n");