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Move syscall handler to SystemCalls.cpp

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This commit is contained in:
Alex
2023-04-04 03:25:25 +03:00
parent d2c241fcb6
commit f81922f63d
2 changed files with 45 additions and 129 deletions
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100
Architecture/amd64/SystemCalls.cpp
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@ -29,68 +29,58 @@ extern "C" uint64_t SystemCallsHandler(SyscallsFrame *regs);
extern "C" void SystemCallHandlerStub();
extern "C" __attribute__((naked, used, no_stack_protector)) void SystemCallHandlerStub_broken()
extern "C" __naked __used __no_stack_protector void SystemCallHandlerStub()
{
// asmv(
// // "cmp $0x08, 0x8(%rsp)\n"
// // "je 1f\n"
// "swapgs\n"
// // "1:\n"
asmv("swapgs\n"
// "mov %rsp, 0x8(%gs)\n" // CPUData->TempStack
// "mov 0x0(%gs), %rsp\n" // CPUData->SystemCallStack
// "push $0x1b\n" // user data segment
// "push 0x8(%gs)\n" // saved stack
// "push %r11\n" // saved rflags
// "push $0x23\n" // user code segment
// "push %rcx\n" // Current RIP
"mov %rsp, %gs:0x8\n" // CPUData->TempStack
"mov %gs:0x0, %rsp\n" // CPUData->SystemCallStack
"push $0x1b\n" // user data segment
"push %gs:0x8\n" // saved stack
"push %r11\n" // saved rflags
"push $0x23\n" // user code segment
"push %rcx\n" // Current RIP
// "push %rax\n"
// "push %rbx\n"
// "push %rcx\n"
// "push %rdx\n"
// "push %rsi\n"
// "push %rdi\n"
// "push %rbp\n"
// "push %r8\n"
// "push %r9\n"
// "push %r10\n"
// "push %r11\n"
// "push %r12\n"
// "push %r13\n"
// "push %r14\n"
// "push %r15\n"
"push %rax\n"
"push %rbx\n"
"push %rcx\n"
"push %rdx\n"
"push %rsi\n"
"push %rdi\n"
"push %rbp\n"
"push %r8\n"
"push %r9\n"
"push %r10\n"
"push %r11\n"
"push %r12\n"
"push %r13\n"
"push %r14\n"
"push %r15\n"
// "mov %rsp, %rdi\n"
// "mov $0, %rbp\n"
// "call SystemCallsHandler\n"
"mov %rsp, %rdi\n"
"mov $0, %rbp\n"
"call SystemCallsHandler\n"
// "pop %r15\n"
// "pop %r14\n"
// "pop %r13\n"
// "pop %r12\n"
// "pop %r11\n"
// "pop %r10\n"
// "pop %r9\n"
// "pop %r8\n"
// "pop %rbp\n"
// "pop %rdi\n"
// "pop %rsi\n"
// "pop %rdx\n"
// "pop %rcx\n"
// "pop %rbx\n"
// /* "pop %rax\n" */
"pop %r15\n"
"pop %r14\n"
"pop %r13\n"
"pop %r12\n"
"pop %r11\n"
"pop %r10\n"
"pop %r9\n"
"pop %r8\n"
"pop %rbp\n"
"pop %rdi\n"
"pop %rsi\n"
"pop %rdx\n"
"pop %rcx\n"
"pop %rbx\n"
// "mov 0x8(%gs), %rsp\n" // CPUData->TempStack
"mov %gs:0x8, %rsp\n" // CPUData->TempStack
// // "cmp $0x08, 0x8(%rsp)\n"
// // "je 1f\n"
// "swapgs\n"
// // "1:\n"
// "sti\n"
// "sysretq\n");
"swapgs\n"
"sti\n"
"sysretq\n");
}
void InitializeSystemCalls()