40 lines
787 B
C
40 lines
787 B
C
/*
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* Copyright (c) 2026, Chloe M.
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* Provided under the BSD-3 clause.
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*
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* Description: System call dispatch
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* Author: Chloe M.
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*/
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#include <ke/syscall.h>
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#include <machine/frame.h>
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/*
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* Dispatch incoming system calls
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*
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* @Frame: Trapframe snapshot
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*/
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VOID
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MdSyscallDispatch(TRAP_FRAME *Frame)
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{
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SYSCALL_ARGS ScArgs;
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if (Frame == NULL) {
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return;
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}
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/* Is this system call number valid? */
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if (Frame->Rax == 0 || Frame->Rax >= _SYSCALL_MAX) {
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Frame->Rax = STATUS_INVALID_PARAM;
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return;
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}
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ScArgs.Arg[0] = Frame->Rdi;
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ScArgs.Arg[1] = Frame->Rsi;
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ScArgs.Arg[2] = Frame->Rdx;
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ScArgs.Arg[3] = Frame->Rcx;
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ScArgs.Arg[4] = Frame->R8;
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ScArgs.Arg[5] = Frame->R9;
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SystemCallTable[Frame->Rax](&ScArgs);
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}
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