/*
 * Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
 *
 * All rights reserved.
 *
 * This file is part of ObjFW. It may be distributed under the terms of the
 * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
 * the packaging of this file.
 *
 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#import "macros.h"

#ifdef OF_MORPHOS
# include <ppcinline/macros.h>
# define OF_M68K_ARG(type, name, reg) type name = (type)REG_##reg;
#else
# define OF_M68K_ARG(type, name, reg)		\
	register type reg_##name __asm__(#reg);	\
	type name = reg_##name;
#endif

typedef void (*of_sig_t)(int);

struct of_libc {
	/*
	 * Needed by the runtime. Some of them are also used by ObjFW, but we
	 * need all of them to pass them along to the runtime.
	 */
	void *_Nullable (*_Nonnull malloc)(size_t);
	void *_Nullable (*_Nonnull calloc)(size_t, size_t);
	void *_Nullable (*_Nonnull realloc)(void *_Nullable, size_t);
	void (*_Nonnull free)(void *_Nullable);
	int (*_Nonnull vfprintf)(FILE *_Nonnull restrict,
	    const char *_Nonnull restrict, va_list);
	int (*_Nonnull fflush)(FILE *_Nonnull);
	void (*_Nonnull abort)(void);
#ifdef HAVE_SJLJ_EXCEPTIONS
	int (*_Nonnull _Unwind_SjLj_RaiseException)(void *_Nonnull);
#else
	int (*_Nonnull _Unwind_RaiseException)(void *_Nonnull);
#endif
	void (*_Nonnull _Unwind_DeleteException)(void *_Nonnull);
	void *_Nullable (*_Nonnull _Unwind_GetLanguageSpecificData)(
	    void *_Nonnull);
	uintptr_t (*_Nonnull _Unwind_GetRegionStart)(void *_Nonnull);
	uintptr_t (*_Nonnull _Unwind_GetDataRelBase)(void *_Nonnull);
	uintptr_t (*_Nonnull _Unwind_GetTextRelBase)(void *_Nonnull);
	uintptr_t (*_Nonnull _Unwind_GetIP)(void *_Nonnull);
	uintptr_t (*_Nonnull _Unwind_GetGR)(void *_Nonnull, int);
	void (*_Nonnull _Unwind_SetIP)(void *_Nonnull, uintptr_t);
	void (*_Nonnull _Unwind_SetGR)(void *_Nonnull, int, uintptr_t);
#ifdef HAVE_SJLJ_EXCEPTIONS
	void (*_Nonnull _Unwind_SjLj_Resume)(void *_Nonnull);
#else
	void (*_Nonnull _Unwind_Resume)(void *_Nonnull);
#endif
#ifdef OF_AMIGAOS_M68K
	void (*_Nonnull __register_frame_info)(const void *_Nonnull,
	    void *_Nonnull);
	void *_Nullable (*_Nonnull __deregister_frame_info)(
	    const void *_Nonnull);
#endif
#ifdef OF_MORPHOS
	void (*_Nonnull __register_frame)(void *_Nonnull);
	void (*_Nonnull __deregister_frame)(void *_Nonnull);
#endif
	int *_Nonnull (*_Nonnull get_errno)(void);

	/* Needed only by ObjFW. */
	int (*_Nonnull vsnprintf)(char *_Nonnull restrict, size_t,
	    const char *_Nonnull restrict, va_list);
#ifdef OF_AMIGAOS_M68K
	/* strtod() uses sscanf() internally */
	int (*_Nonnull vsscanf)(const char *_Nonnull restrict,
	    const char *_Nonnull restrict, va_list);
#endif
	void (*_Nonnull exit)(int);
	int (*_Nonnull atexit)(void (*_Nonnull)(void));
	of_sig_t _Nullable (*_Nonnull signal)(int, of_sig_t _Nullable);
	char *_Nullable (*_Nonnull setlocale)(int, const char *_Nullable);
	int (*_Nonnull _Unwind_Backtrace)(int (*_Nonnull)(void *_Nonnull,
	    void *_Null_unspecified), void *_Null_unspecified);
};

extern bool of_init(unsigned int version, struct of_libc *libc, FILE **sF);