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Spawn Processes using memory primitives rather than and elf loader.

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This allows us to remove the temporary syscall for that style of process
spawn.
This commit is contained in:
Drew Galbraith 2023-06-07 00:04:53 -07:00
parent b06c76e477
commit 23895b5c6c
26 changed files with 403 additions and 94 deletions
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6
zion/object/thread.cpp
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@ -29,7 +29,7 @@ RefPtr<Thread> Thread::Create(Process& proc, uint64_t tid) {
}
Thread::Thread(Process& proc, uint64_t tid) : process_(proc), id_(tid) {
uint64_t* stack_ptr = proc.vmm().AllocateKernelStack();
uint64_t* stack_ptr = proc.vmas()->AllocateKernelStack();
// 0: rip
*(stack_ptr) = reinterpret_cast<uint64_t>(thread_init);
// 1-4: rax, rcx, rdx, rbx
@ -37,7 +37,7 @@ Thread::Thread(Process& proc, uint64_t tid) : process_(proc), id_(tid) {
*(stack_ptr - 5) = reinterpret_cast<uint64_t>(stack_ptr + 1);
// 6-15: rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15
// 16: cr3
*(stack_ptr - 16) = proc.vmm().cr3();
*(stack_ptr - 16) = proc.vmas()->cr3();
rsp0_ = reinterpret_cast<uint64_t>(stack_ptr - 16);
rsp0_start_ = reinterpret_cast<uint64_t>(stack_ptr);
}
@ -55,7 +55,7 @@ void Thread::Start(uint64_t entry, uint64_t arg1, uint64_t arg2) {
void Thread::Init() {
dbgln("Thread start.", pid(), id_);
uint64_t rsp = process_.vmm().AllocateUserStack();
uint64_t rsp = process_.vmas()->AllocateUserStack();
SetRsp0(rsp0_start_);
jump_user_space(rip_, rsp, arg1_, arg2_);
}