Function onExitSignal

source/kernel/kthread.cpp:1097–1138

}

void OPCALL onExitSignal(CPU* cpu, DecodedOp* op) {
    U64 count = cpu->instructionCount;

    cpu->pop32(); // signal
    cpu->pop32(); // address
    U32 context = cpu->pop32();
    cpu->thread->condStartWaitTime = cpu->pop32();
    cpu->thread->interrupted = cpu->pop32()!=0;

#ifdef LOG_OPS
    //klog("onExitSignal signal=%d info=%X context=%X stack=%X interrupted=%d", signal, address, context, cpu->reg[4].u32, cpu->thread->interrupted);
    //klog("    before context %.8X EAX=%.8X ECX=%.8X EDX=%.8X EBX=%.8X ESP=%.8X EBP=%.8X ESI=%.8X EDI=%.8X fs=%d(%X) fs18=%X", cpu->eip.u32, cpu->reg[0].u32, cpu->reg[1].u32, cpu->reg[2].u32, cpu->reg[3].u32, cpu->reg[4].u32, cpu->reg[5].u32, cpu->reg[6].u32, cpu->reg[7].u32, cpu->segValue[4], cpu->segAddress[4], cpu->segAddress[4]?readd(cpu->memory, cpu->segAddress[4]+0x18):0);
#endif
    readFromContext(cpu, context);
#ifdef LOG_OPS
    klog("    after  context %.8X EAX=%.8X ECX=%.8X EDX=%.8X EBX=%.8X ESP=%.8X EBP=%.8X ESI=%.8X EDI=%.8X fs=%d(%X) fs18=%X", cpu->eip.u32, cpu->reg[0].u32, cpu->reg[1].u32, cpu->reg[2].u32, cpu->reg[3].u32, cpu->reg[4].u32, cpu->reg[5].u32, cpu->reg[6].u32, cpu->reg[7].u32, cpu->seg[4].value, cpu->seg[4].address, cpu->seg[4].address ? readd(cpu->seg[4].address + 0x18) : 0);
#endif
    cpu->instructionCount = count;
    cpu->thread->inSignal--;
    
    if (cpu->thread->waitingForSignalToEndMaskToRestore & RESTORE_SIGNAL_MASK) {
        cpu->thread->sigMask = cpu->thread->waitingForSignalToEndMaskToRestore & RESTORE_SIGNAL_MASK;
        cpu->thread->waitingForSignalToEndMaskToRestore = SIGSUSPEND_RETURN;
    }

    {
        BOXEDWINE_CRITICAL_SECTION_WITH_CONDITION(cpu->thread->waitingForSignalToEndCond);
        BOXEDWINE_CONDITION_SIGNAL_ALL(cpu->thread->waitingForSignalToEndCond);
    }

    cpu->nextOp = cpu->getNextOp();

    /*
    if (action->flags & K_SA_RESTORER) {
        push32(&thread->cpu, thread->cpu->eip.u32);
        thread->cpu->eip.u32 = action->restorer;
        while (thread->cpu->eip.u32!=savedState.eip.u32) {
            runCPU(&thread->cpu);
        }
    }
    */
}

// interrupted and condStartWaitTime are pushed because syscall's during the signal will clobber them
void KThread::runSignal(U32 signal, U32 trapNo, U32 errorNo) {