ObjFW  Diff

	return -1;
}

#ifdef OF_AMIGAOS_M68K
void
__init_eh(void)
{
	/* Taken care of by objc_init() */
}
#endif

struct ObjFWRTBase {
	struct Library library;
	void *segList;
	struct ObjFWRTBase *parent;

extern void *_EH_FRAME_OBJECTS__;
#endif

#ifdef OF_MORPHOS
const ULONG __abox__ = 1;
#endif
struct ExecBase *SysBase;
struct objc_libC libC;

#if defined(OF_AMIGAOS_M68K)
__asm__ (
    ".text\n"
    ".globl ___restore_a4\n"
    ".align 1\n"
    "___restore_a4:\n"

	);
#endif

	return dataDataRelocs;
}

static struct Library *
libInit(struct ObjFWRTBase *base OBJC_M68K_REG(d0),
    void *segList OBJC_M68K_REG(a0), struct ExecBase *sysBase OBJC_M68K_REG(a6))
{
#if defined(OF_AMIGAOS_M68K)
	__asm__ __volatile__ (
	    "move.l	a6, _SysBase"
	    :: "a"(sysBase)
	);

	base->parent = NULL;
	base->dataSeg = getDataSeg();

	return &base->library;
}

struct Library *__saveds
libOpen(void)
{
	OBJC_M68K_ARG(struct ObjFWRTBase *, base, a6)

	struct ObjFWRTBase *child;
	size_t dataSize, *dataDataRelocs;
	ptrdiff_t displacement;

	if (base->parent != NULL)
		return NULL;

	base->library.lib_OpenCnt++;
	base->library.lib_Flags &= ~LIBF_DELEXP;

	/*
	 * We cannot use malloc here, as that depends on the libC passed from
	 * the application.
	 */
	if ((child = AllocMem(base->library.lib_NegSize +
	    base->library.lib_PosSize, MEMF_ANY)) == NULL) {
		base->library.lib_OpenCnt--;
		return NULL;
	}

	    base->library.lib_NegSize + base->library.lib_PosSize);

	return segList;
#undef SysBase
}

static void *__saveds
libExpunge(void)
{
	OBJC_M68K_ARG(struct ObjFWRTBase *, base, a6)

	return expunge(base, SysBase);
}

static void *__saveds
libClose(void)
{
	/*
	 * SysBase becomes invalid during this function, so we store it in
	 * sysBase and add a define to make the inlines use the right one.
	 */
	struct ExecBase *sysBase = SysBase;
#define SysBase sysBase

	OBJC_M68K_ARG(struct ObjFWRTBase *, base, a6)

	if (base->parent != NULL) {
		struct ObjFWRTBase *parent;

#ifdef OF_AMIGAOS_M68K
		if (base->initialized)
			for (void *const *frame = _EH_FRAME_BEGINS__;
			    *frame != NULL;)
				libC.__deregister_frame_info(*frame++);
#endif

		parent = base->parent;

		FreeMem(base->dataSeg - DATA_OFFSET, getDataSize());
		FreeMem((char *)base - base->library.lib_NegSize,
		    base->library.lib_NegSize + base->library.lib_PosSize);

		base = parent;
	}

	if (--base->library.lib_OpenCnt == 0 &&
	    (base->library.lib_Flags & LIBF_DELEXP))
		return expunge(base, sysBase);

	return NULL;
#undef SysBase
}

static void *
libNull(void)
{
	return NULL;
}

bool
objc_init(unsigned int version, struct objc_libC *libC_)
{
#ifdef OF_AMIGAOS_M68K
	OBJC_M68K_ARG(struct ObjFWRTBase *, base, a6)
#else
	register struct ObjFWRTBase *r12 __asm__("r12");
	struct ObjFWRTBase *base = r12;
#endif
#ifdef OF_MORPHOS
	void *frame;
#endif
	uintptr_t *iter, *iter0;

	if (version > 1)
		return false;

	if (base->initialized)
		return true;

	memcpy(&libC, libC_, sizeof(libC));

#ifdef OF_AMIGAOS_M68K
	for (void *const *frame = _EH_FRAME_BEGINS__,
	    **object = _EH_FRAME_OBJECTS__; *frame != NULL;)
		libC.__register_frame_info(*frame++, *object++);

	iter0 = &__CTOR_LIST__[1];
#elif defined(OF_MORPHOS)
	__asm__ (
	    "lis	%0, __EH_FRAME_BEGIN__@ha\n\t"
	    "la		%0, __EH_FRAME_BEGIN__@l(%0)\n\t"
	    "lis	%1, __CTOR_LIST__@ha\n\t"
	    "la		%1, __CTOR_LIST__@l(%1)\n\t"
	    : "=r"(frame), "=r"(iter0)
	);

	libC.__register_frame(frame);
#endif

	for (iter = iter0; *iter != 0; iter++);

	while (iter > iter0) {
		void (*ctor)(void) = (void (*)(void))*--iter;
		ctor();
	}

	base->initialized = true;

	return true;
}

void *
malloc(size_t size)
{
	return libC.malloc(size);
}

void *
calloc(size_t count, size_t size)
{
	return libC.calloc(count, size);
}

void *
realloc(void *ptr, size_t size)
{
	return libC.realloc(ptr, size);
}

void
free(void *ptr)
{
	libC.free(ptr);
}

#ifdef HAVE_SJLJ_EXCEPTIONS
int
_Unwind_SjLj_RaiseException(void *ex)
{
	return libC._Unwind_SjLj_RaiseException(ex);
}
#else
int
_Unwind_RaiseException(void *ex)
{
	return libC._Unwind_RaiseException(ex);
}
#endif

void
_Unwind_DeleteException(void *ex)
{
	libC._Unwind_DeleteException(ex);
}

void *
_Unwind_GetLanguageSpecificData(void *ctx)
{
	return libC._Unwind_GetLanguageSpecificData(ctx);
}

uintptr_t
_Unwind_GetRegionStart(void *ctx)
{
	return libC._Unwind_GetRegionStart(ctx);
}

uintptr_t
_Unwind_GetDataRelBase(void *ctx)
{
	return libC._Unwind_GetDataRelBase(ctx);
}

uintptr_t
_Unwind_GetTextRelBase(void *ctx)
{
	return libC._Unwind_GetTextRelBase(ctx);
}

uintptr_t
_Unwind_GetIP(void *ctx)
{
	return libC._Unwind_GetIP(ctx);
}

uintptr_t
_Unwind_GetGR(void *ctx, int gr)
{
	return libC._Unwind_GetGR(ctx, gr);
}

void
_Unwind_SetIP(void *ctx, uintptr_t ip)
{
	libC._Unwind_SetIP(ctx, ip);
}

void
_Unwind_SetGR(void *ctx, int gr, uintptr_t value)
{
	libC._Unwind_SetGR(ctx, gr, value);
}

#ifdef HAVE_SJLJ_EXCEPTIONS
void
_Unwind_SjLj_Resume(void *ex)
{
	libC._Unwind_SjLj_Resume(ex);
}
#else
void
_Unwind_Resume(void *ex)
{
	libC._Unwind_Resume(ex);
}
#endif

#ifdef OF_AMIGAOS_M68K
void
__register_frame_info(const void *begin, void *object)
{
	libC.__register_frame_info(begin, object);
}

void
*__deregister_frame_info(const void *begin)
{
	return libC.__deregister_frame_info(begin);
}
#endif

#ifdef OF_MORPHOS
void __register_frame(void *frame)
{
	libC.__register_frame(frame);
}

void __deregister_frame(void *frame)
{
	libC.__deregister_frame(frame);
}
#endif

#ifdef OF_AMIGAOS_M68K
int
snprintf(char *restrict str, size_t size, const char *restrict fmt, ...)
{

	return ret;
}

int
vsnprintf(char *restrict str, size_t size, const char *restrict fmt,
    va_list args)
{
	return libC.vsnprintf(str, size, fmt, args);
}
#endif

int
atexit(void (*function)(void))
{
	return libC.atexit(function);
}

void
exit(int status)
{
	libC.exit(status);

	OF_UNREACHABLE
}

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
static CONST_APTR functionTable[] = {
#ifdef OF_MORPHOS
	(CONST_APTR)FUNCARRAY_BEGIN,
	(CONST_APTR)FUNCARRAY_32BIT_NATIVE,
#endif
	(CONST_APTR)libOpen,
	(CONST_APTR)libClose,
	(CONST_APTR)libExpunge,
	(CONST_APTR)libNull,
#ifdef OF_MORPHOS
	(CONST_APTR)-1,
	(CONST_APTR)FUNCARRAY_32BIT_SYSTEMV,
#endif
#include "amiga-funcarray.inc"
	(CONST_APTR)-1,
#ifdef OF_MORPHOS

	    struct ObjFWRTBase *base OBJC_M68K_REG(d0),
	    void *segList OBJC_M68K_REG(a0),
	    struct ExecBase *execBase OBJC_M68K_REG(a6));
} init_table = {
	sizeof(struct ObjFWRTBase),
	functionTable,
	NULL,
	libInit
};

struct Resident resident = {
	.rt_MatchWord = RTC_MATCHWORD,
	.rt_MatchTag = &resident,
	.rt_EndSkip = &resident + 1,
	.rt_Flags = RTF_AUTOINIT