114 lines
6.4 KiB
C
114 lines
6.4 KiB
C
#pragma once
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// syscall_nr.h - system call numbers
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// Shared between kernel (ke_syscall.c) and user mode (syscall.dll).
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// Keep in sync with gSyscallTable in ke_syscall.c and SYS_MAX below.
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//
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// Calling convention (INT 0x40, MS x64):
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// RAX = syscall number
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// RCX, RDX, R8, R9 = args 0-3
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// R10, R11 = args 4-5 (loaded by SYSCALL_STUB6 in syscall_stubs.asm)
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// Return value in RAX (KSTATUS or data).
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//
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// Handle semantics:
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// Every kernel object (file, mutex, semaphore, event, queue) is reference-
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// counted. SYS_CLOSE_HANDLE is the ONE way to close any handle regardless
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// of the object type behind it. KeCloseHandle calls ObDereferenceObject,
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// which fires the type-specific Destroy callback (e.g. FileDestroy)
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// automatically when the refcount reaches zero. There is no separate
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// SYS_CLOSE_FILE - that was redundant.
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// ---------------------------------------------------------------------------
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// Process & Thread
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// ---------------------------------------------------------------------------
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#define SYS_EXIT_PROCESS 0 // (int exitCode) -> void
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#define SYS_EXIT_THREAD 1 // (int exitCode) -> void
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#define SYS_CREATE_THREAD 2 // (uint64_t entry, uint64_t arg, uint32_t priority, uint32_t* tidOut) -> KSTATUS
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#define SYS_GET_CURRENT_TID 3 // () -> uint32_t
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#define SYS_GET_CURRENT_PID 4 // () -> uint32_t
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#define SYS_YIELD 5 // () -> void
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#define SYS_SLEEP 6 // (uint32_t ms) -> void
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#define SYS_SET_THREAD_PRIORITY 7 // (uint32_t priority) -> KSTATUS
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// ---------------------------------------------------------------------------
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// Memory
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// ---------------------------------------------------------------------------
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#define SYS_ALLOC 8 // (size_t size) -> void* (NULL on failure)
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#define SYS_FREE 9 // (void* ptr, size_t size) -> void
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#define SYS_REALLOC 10 // (void* ptr, size_t newSize) -> void*
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// ---------------------------------------------------------------------------
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// Synchronisation Objects
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// ---------------------------------------------------------------------------
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#define SYS_MUTEX_CREATE 11 // (uint32_t* handleOut) -> KSTATUS
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#define SYS_MUTEX_ACQUIRE 12 // (uint32_t handle) -> KSTATUS
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#define SYS_MUTEX_TRY_ACQUIRE 13 // (uint32_t handle) -> KSTATUS
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#define SYS_MUTEX_RELEASE 14 // (uint32_t handle) -> KSTATUS
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#define SYS_SEM_CREATE 15 // (int32_t initial, int32_t max, uint32_t* handleOut) -> KSTATUS
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#define SYS_SEM_WAIT 16 // (uint32_t handle) -> KSTATUS
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#define SYS_SEM_TRY_WAIT 17 // (uint32_t handle) -> KSTATUS
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#define SYS_SEM_SIGNAL 18 // (uint32_t handle) -> void
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#define SYS_EVENT_CREATE 19 // (uint32_t type, uint32_t initialState, uint32_t* handleOut) -> KSTATUS
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#define SYS_EVENT_SIGNAL 20 // (uint32_t handle) -> void
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#define SYS_EVENT_CLEAR 21 // (uint32_t handle) -> void
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#define SYS_EVENT_WAIT 22 // (uint32_t handle) -> KSTATUS
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// ---------------------------------------------------------------------------
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// Message Queues
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// ---------------------------------------------------------------------------
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#define SYS_QUEUE_CREATE 23 // (uint32_t* handleOut) -> KSTATUS
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#define SYS_QUEUE_SEND 24 // (uint32_t handle, const QUEUE_MESSAGE* msg, uint32_t blocking) -> KSTATUS
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#define SYS_QUEUE_RECV 25 // (uint32_t handle, QUEUE_MESSAGE* msg, uint32_t blocking) -> KSTATUS
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// ---------------------------------------------------------------------------
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// Handle Management
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// ---------------------------------------------------------------------------
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#define SYS_CLOSE_HANDLE 26 // (uint32_t handle) -> void
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// ---------------------------------------------------------------------------
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// File I/O
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// (Close a file handle via SYS_CLOSE_HANDLE, same as any other object.)
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// ---------------------------------------------------------------------------
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#define SYS_OPEN_FILE 27 // (const char* path, uint32_t* handleOut) -> KSTATUS
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#define SYS_READ_FILE 28 // (uint32_t handle, void* buf, size_t size, size_t* bytesReadOut) -> KSTATUS
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#define SYS_SEEK_FILE 29 // (uint32_t handle, uint64_t offset) -> KSTATUS
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#define SYS_GET_FILE_SIZE 30 // (uint32_t handle) -> uint64_t
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// ---------------------------------------------------------------------------
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// Screen / Graphics
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// ---------------------------------------------------------------------------
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#define SYS_SCREEN_BLIT 31 // (int x, int y, int w, int h, const uint32_t* pixels) -> void
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#define SYS_SCREEN_CLEAR 32 // (uint32_t color) -> void
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#define SYS_SCREEN_GET_SIZE 33 // (int* widthOut, int* heightOut) -> void
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#define SYS_SCREEN_PUT_CHAR 34 // (char c, int x, int y, uint32_t fg, uint32_t bg) -> void
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// ---------------------------------------------------------------------------
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// Keyboard
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// ---------------------------------------------------------------------------
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#define SYS_KB_POLL 35 // () -> uint32_t (1 if key available, 0 otherwise)
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#define SYS_KB_READ_CHAR 36 // () -> char (blocks, yields while waiting)
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#define SYS_KB_READ_SCANCODE 37 // () -> uint8_t (blocks, yields while waiting)
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// ---------------------------------------------------------------------------
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// Timer
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// ---------------------------------------------------------------------------
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#define SYS_GET_TICK 38 // () -> uint64_t (milliseconds since boot)
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// ---------------------------------------------------------------------------
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// Debug
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// ---------------------------------------------------------------------------
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#define SYS_DEBUG_PRINT 39 // (const char* str) -> void
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// ---------------------------------------------------------------------------
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// Process launch & lifecycle
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// ---------------------------------------------------------------------------
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#define SYS_CREATE_PROCESS 40 // (const char* path, uint32_t* handleOut) -> KSTATUS
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#define SYS_WAIT_FOR_PROCESS 41 // (uint32_t handle) -> KSTATUS
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#define SYS_GET_PROCESS_EXIT_CODE 42 // (uint32_t handle, int* exitCodeOut) -> KSTATUS
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// ---------------------------------------------------------------------------
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// Sentinel
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// ---------------------------------------------------------------------------
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#define SYS_MAX 43
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