222 lines
12 KiB
C
222 lines
12 KiB
C
/****************************************************************************
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* Copyright (C) 2018-2021 Maschell
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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#pragma once
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#include "common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define WUPS_HOOK_EX(type_def, original_func) \
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extern const wups_loader_hook_t wups_hooks_##original_func WUPS_SECTION("hooks"); \
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const wups_loader_hook_t wups_hooks_##original_func = { \
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.type = type_def, \
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.target = (const void *) &(original_func)}
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typedef enum wups_loader_hook_type_t {
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WUPS_LOADER_HOOK_INIT_WUT_MALLOC,
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WUPS_LOADER_HOOK_FINI_WUT_MALLOC,
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WUPS_LOADER_HOOK_INIT_WUT_NEWLIB,
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WUPS_LOADER_HOOK_FINI_WUT_NEWLIB,
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WUPS_LOADER_HOOK_INIT_WUT_STDCPP,
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WUPS_LOADER_HOOK_FINI_WUT_STDCPP,
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WUPS_LOADER_HOOK_INIT_WUT_DEVOPTAB,
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WUPS_LOADER_HOOK_FINI_WUT_DEVOPTAB,
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WUPS_LOADER_HOOK_INIT_WUT_SOCKETS,
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WUPS_LOADER_HOOK_FINI_WUT_SOCKETS,
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WUPS_LOADER_HOOK_INIT_WRAPPER, /* Calls __init */
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WUPS_LOADER_HOOK_FINI_WRAPPER, /* Calls __fini */
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WUPS_LOADER_HOOK_GET_CONFIG_DEPRECATED, /* Deprecated implementation */
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WUPS_LOADER_HOOK_CONFIG_CLOSED_DEPRECATED, /* Deprecated implementation */
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WUPS_LOADER_HOOK_INIT_STORAGE_DEPRECATED, /* Deprecated implementation */
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WUPS_LOADER_HOOK_INIT_PLUGIN, /* Called when exiting the plugin loader */
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WUPS_LOADER_HOOK_DEINIT_PLUGIN, /* Called when re-entering the plugin loader */
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WUPS_LOADER_HOOK_APPLICATION_STARTS, /* Called when an application gets started */
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WUPS_LOADER_HOOK_RELEASE_FOREGROUND, /* Called when a foreground is going to be released */
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WUPS_LOADER_HOOK_ACQUIRED_FOREGROUND, /* Called when a foreground is acquired */
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WUPS_LOADER_HOOK_APPLICATION_REQUESTS_EXIT, /* Called when an application wants to exit */
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WUPS_LOADER_HOOK_APPLICATION_ENDS, /* Called when an application ends */
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WUPS_LOADER_HOOK_INIT_STORAGE, /* Only for internal usage */
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WUPS_LOADER_HOOK_INIT_CONFIG, /* Only for internal usage */
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} wups_loader_hook_type_t;
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typedef struct wups_loader_hook_t {
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wups_loader_hook_type_t type; /* Defines the type of the hook */
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const void *target; /* Address of our own, new function */
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} wups_loader_hook_t;
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#define INITIALIZE_PLUGIN() \
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void init_plugin(void); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_PLUGIN, init_plugin); \
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void init_plugin()
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#define DEINITIALIZE_PLUGIN() \
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void deinit_plugin(void); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_DEINIT_PLUGIN, deinit_plugin); \
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void deinit_plugin()
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#define ON_APPLICATION_START() \
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void on_app_starting(); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_APPLICATION_STARTS, on_app_starting); \
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void on_app_starting()
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#define ON_RELEASE_FOREGROUND() \
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void on_release_foreground(void); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_RELEASE_FOREGROUND, on_release_foreground); \
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void on_release_foreground(void)
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#define ON_ACQUIRED_FOREGROUND() \
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void on_acquired_foreground(void); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_ACQUIRED_FOREGROUND, on_acquired_foreground); \
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void on_acquired_foreground(void)
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#define ON_APPLICATION_REQUESTS_EXIT() \
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void on_app_requests_exit(void); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_APPLICATION_REQUESTS_EXIT, on_app_requests_exit); \
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void on_app_requests_exit(void)
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#define ON_APPLICATION_ENDS() \
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void on_app_ending(void); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_APPLICATION_ENDS, on_app_ending); \
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void on_app_ending(void)
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#define WUPS_GET_CONFIG(x) \
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static_assert(false, "Please use \"WUPSConfigAPI_Init\" inside \"INITIALIZE_PLUGIN\" to provide a callback instead");
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#define WUPS_CONFIG_CLOSED() \
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static_assert(false, "Please use \"WUPSConfigAPI_Init\" inside \"INITIALIZE_PLUGIN\" to provide a callback instead");
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#define WUPS_USE_STORAGE(x) \
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WUPS_META(storage_id, x); \
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void init_storage(wups_loader_init_storage_args_t); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_STORAGE, init_storage); \
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void init_storage(wups_loader_init_storage_args_t args) { \
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WUPS_InitStorage(args); \
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}
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#ifdef __cplusplus
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#define __EXTERN_C_MACRO extern "C"
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#else
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#define __EXTERN_C_MACRO
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#endif
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#define WUPS_INIT_CONFIG_FUNCTIONS() \
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__EXTERN_C_MACRO WUPSConfigAPIStatus WUPSConfigAPI_InitLibrary_Internal(wups_loader_init_config_args_t args); \
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void wups_init_config_functions(wups_loader_init_config_args_t); \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_CONFIG, wups_init_config_functions); \
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void wups_init_config_functions(wups_loader_init_config_args_t args) { \
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WUPSConfigAPI_InitLibrary_Internal(args); \
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}
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#define WUPS_USE_WUT_MALLOC() \
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__EXTERN_C_MACRO void __init_wut_malloc(); \
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void on_init_wut_malloc() { \
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__init_wut_malloc(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_WUT_MALLOC, on_init_wut_malloc); \
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__EXTERN_C_MACRO void __fini_wut_malloc(); \
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void on_fini_wut_malloc() { \
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__fini_wut_malloc(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_FINI_WUT_MALLOC, on_fini_wut_malloc)
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#define WUPS_USE_WUT_DEVOPTAB() \
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__EXTERN_C_MACRO void __init_wut_devoptab(); \
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void on_init_wut_devoptab() { \
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__init_wut_devoptab(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_WUT_DEVOPTAB, on_init_wut_devoptab); \
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__EXTERN_C_MACRO void __fini_wut_devoptab(); \
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void on_fini_wut_devoptab() { \
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__fini_wut_devoptab(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_FINI_WUT_DEVOPTAB, on_fini_wut_devoptab)
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#define WUPS_USE_WUT_NEWLIB() \
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__EXTERN_C_MACRO void __init_wut_newlib(); \
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void on_init_wut_newlib() { \
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__init_wut_newlib(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_WUT_NEWLIB, on_init_wut_newlib); \
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__EXTERN_C_MACRO void __fini_wut_newlib(); \
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void on_fini_wut_newlib() { \
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__fini_wut_newlib(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_FINI_WUT_NEWLIB, on_fini_wut_newlib)
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#define WUPS_USE_WUT_STDCPP() \
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__EXTERN_C_MACRO void __init_wut_stdcpp(); \
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void on_init_wut_stdcpp() { \
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__init_wut_stdcpp(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_WUT_STDCPP, on_init_wut_stdcpp); \
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__EXTERN_C_MACRO void __fini_wut_stdcpp(); \
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void on_fini_wut_stdcpp() { \
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__fini_wut_stdcpp(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_FINI_WUT_STDCPP, on_fini_wut_stdcpp)
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#ifdef __cplusplus
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extern "C" uint32_t __attribute__((weak)) wut_get_thread_specific(int id);
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extern "C" const char wups_meta_info_linking_order[];
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extern "C" void OSFatal(const char *msg);
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#else
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extern uint32_t __attribute__((weak)) wut_get_thread_specific(int id);
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extern const char wups_meta_info_linking_order[];
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extern void OSFatal(const char *msg);
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#endif
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#define WUPS___INIT_WRAPPER() \
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__EXTERN_C_MACRO void __init(); \
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void __init_wrapper() { \
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if (wut_get_thread_specific(0x13371337) != 0x42424242) { \
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OSFatal(wups_meta_info_linking_order); \
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} \
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__init(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_WRAPPER, __init_wrapper);
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#define WUPS___FINI_WRAPPER() \
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__EXTERN_C_MACRO void __fini(); \
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void __fini_wrapper() { \
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__fini(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_FINI_WRAPPER, __fini_wrapper);
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#define WUPS_USE_WUT_SOCKETS() \
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__EXTERN_C_MACRO void __attribute__((weak)) __init_wut_socket(); \
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void on_init_wut_sockets() { \
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if (&__init_wut_socket) __init_wut_socket(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_WUT_SOCKETS, on_init_wut_sockets); \
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__EXTERN_C_MACRO void __attribute__((weak)) __fini_wut_socket(); \
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void on_fini_wut_sockets() { \
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if (&__fini_wut_socket) __fini_wut_socket(); \
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} \
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WUPS_HOOK_EX(WUPS_LOADER_HOOK_FINI_WUT_SOCKETS, on_fini_wut_sockets)
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#ifdef __cplusplus
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}
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#endif
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