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Stability fixes (i hope); attempt to implement argc, argv, envp, auxv; Syscalls

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This commit is contained in:
Alex
2022-11-10 07:09:32 +02:00
parent 40b1da9dd1
commit 77081b4e1e
35 changed files with 3116 additions and 211 deletions
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28
Architecture/amd64/cpu/SymmetricMultiprocessing.cpp
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@ -2,15 +2,12 @@
#include <interrupts.hpp>
#include <memory.hpp>
#include <assert.h>
#include <cpu.hpp>
#include "../../../kernel.h"
#if defined(__amd64__)
#include "../Architecture/amd64/acpi.hpp"
#include "../Architecture/amd64/cpu/apic.hpp"
#elif defined(__i386__)
#elif defined(__aarch64__)
#endif
#include "../acpi.hpp"
#include "apic.hpp"
extern "C" uint64_t _trampoline_start, _trampoline_end;
@ -31,7 +28,24 @@ volatile bool CPUEnabled = false;
static __attribute__((aligned(PAGE_SIZE))) CPUData CPUs[MAX_CPU] = {0};
CPUData *GetCPU(long id) { return &CPUs[id]; }
CPUData *GetCurrentCPU() { return (CPUData *)CPU::x64::rdmsr(CPU::x64::MSR_GS_BASE); }
CPUData *GetCurrentCPU()
{
CPUData *data = (CPUData *)CPU::x64::rdmsr(CPU::x64::MSR_GS_BASE);
if (data == nullptr && Interrupts::apic[0])
data = &CPUs[((APIC::APIC *)Interrupts::apic[0])->Read(APIC::APIC_ID) >> 24];
if (data == nullptr)
return nullptr; // The caller should handle this.
if (!data->IsActive)
{
error("CPU %d is not active!", data->ID);
return &CPUs[0];
}
assert(data->Checksum == CPU_DATA_CHECKSUM); // This should never happen.
return data;
}
extern "C" void StartCPU()
{