ObjFW  Diff

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 */

#include "config.h"

#import "ObjFW_RT.h"
#import "private.h"

#ifdef OF_AMIGAOS3
#ifdef OF_AMIGAOS_M68K
# define INTUITION_CLASSES_H
#endif

#include <exec/libraries.h>
#include <exec/nodes.h>
#include <exec/resident.h>
#include <proto/exec.h>

#define CONCAT_VERSION2(major, minor) #major "." #minor
#define CONCAT_VERSION(major, minor) CONCAT_VERSION2(major, minor)
#define VERSION_STRING CONCAT_VERSION(OBJFW_RT_LIB_MAJOR, OBJFW_RT_LIB_MINOR)

#if defined(OF_AMIGAOS3)
#if defined(OF_AMIGAOS_M68K)
# define DATA_OFFSET 0x7FFE
#elif defined(OF_MORPHOS)
# define DATA_OFFSET 0x8000
#endif

#ifdef OF_AMIGAOS3
# define OBJC_M68K_REG(reg) __asm__ (#reg)
#ifdef OF_AMIGAOS_M68K
# define OBJC_M68K_REG(reg) __asm__(#reg)
#else
# define OBJC_M68K_REG(reg)
#endif

/* This always needs to be the first thing in the file. */
int
_start()
{
	return -1;
}

struct ObjFWRTBase {
	struct Library library;
	void *seg_list;
	struct ObjFWRTBase *parent;
	char *data_seg;
	bool initialized;
};

#ifdef OF_AMIGAOS3
#ifdef OF_AMIGAOS_M68K
extern uintptr_t __CTOR_LIST__[];
extern const void *_EH_FRAME_BEGINS__;
extern void *_EH_FRAME_OBJECTS__;
#endif

extern void __objc_exec_class_m68k(void);
extern IMP _Nonnull objc_msg_lookup_m68k(void);
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const ULONG __abox__ = 1;
#endif
struct ExecBase *SysBase;
struct objc_libc libc;
FILE *stdout;
FILE *stderr;

#if defined(OF_AMIGAOS3)
#if defined(OF_AMIGAOS_M68K)
__asm__ (
    ".text\n"
    ".globl ___restore_a4\n"
    ".align 1\n"
    "___restore_a4:\n"
    "	movea.l	42(a6), a4\n"
    "	rts"
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#endif

static OF_INLINE char *
get_data_seg(void)
{
	char *data_seg;

#if defined(OF_AMIGAOS3)
#if defined(OF_AMIGAOS_M68K)
	__asm__ (
	    "move.l	#___a4_init, %0"
	    : "=r"(data_seg)
	);
#elif defined(OF_MORPHOS)
	__asm__ (
	    "lis	%0, __r13_init@ha\n\t"
	    "la		%0, __r13_init@l(%0)"
	    : "=r"(data_seg)
	);
#endif

	return data_seg;
}

static OF_INLINE size_t
get_data_size(void)
{
	size_t data_size;

#if defined(OF_AMIGAOS3)
#if defined(OF_AMIGAOS_M68K)
	__asm__ (
	    "move.l	#___data_size, %0"
	    : "=r"(data_size)
	);
#elif defined(OF_MORPHOS)
	__asm__ (
	    "lis	%0, __sdata_size@ha\n\t"
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}

static OF_INLINE size_t *
get_datadata_relocs(void)
{
	size_t *datadata_relocs;

#if defined(OF_AMIGAOS3)
#if defined(OF_AMIGAOS_M68K)
	__asm__ (
	    "move.l	#___datadata_relocs, %0"
	    : "=r"(datadata_relocs)
	);
#elif defined(OF_MORPHOS)
	__asm__ (
	    "lis	%0, __datadata_relocs@ha\n\t"
	    "la		%0, __datadata_relocs@l(%0)\n\t"
	    : "=r"(datadata_relocs)
	);
#endif

	return datadata_relocs;
}

static struct Library *
lib_init(struct ObjFWRTBase *base OBJC_M68K_REG(d0),
    void *seg_list OBJC_M68K_REG(a0),
    struct ExecBase *sys_base OBJC_M68K_REG(a6))
{
#if defined(OF_AMIGAOS3)
#if defined(OF_AMIGAOS_M68K)
	__asm__ __volatile__ (
	    "move.l	a6, _SysBase"
	    :: "a"(sys_base)
	);
#elif defined(OF_MORPHOS)
	__asm__ __volatile__ (
	    "lis	%%r9, SysBase@ha\n\t"
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lib_close(void)
{
	OBJC_M68K_ARG(struct ObjFWRTBase *, base, a6)

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

#ifdef OF_AMIGAOS3
#ifdef OF_AMIGAOS_M68K
		if (base->initialized)
			for (size_t i = 1; i <= (size_t)_EH_FRAME_BEGINS__; i++)
				libc.__deregister_frame_info(
				    (&_EH_FRAME_BEGINS__)[i]);
#endif

		parent = base->parent;
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	if (version > 1)
		return false;

	memcpy(&libc, libc_, sizeof(libc));
	stdout = stdout_;
	stderr = stderr_;

#ifdef OF_AMIGAOS3
#ifdef OF_AMIGAOS_M68K
	if ((size_t)_EH_FRAME_BEGINS__ != (size_t)_EH_FRAME_OBJECTS__)
		return false;

	for (size_t i = 1; i <= (size_t)_EH_FRAME_BEGINS__; i++)
		libc.__register_frame_info((&_EH_FRAME_BEGINS__)[i],
		    (&_EH_FRAME_OBJECTS__)[i]);

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};

struct Resident resident = {
	.rt_MatchWord = RTC_MATCHWORD,
	.rt_MatchTag = &resident,
	.rt_EndSkip = &resident + 1,
	.rt_Flags = RTF_AUTOINIT
#ifndef OF_AMIGAOS3
	    | RTF_PPC
#endif
#ifdef OF_MORPHOS
	    | RTF_EXTENDED
	    | RTF_PPC | RTF_EXTENDED
#endif
	    ,
	.rt_Version = OBJFW_RT_LIB_MAJOR,
	.rt_Type = NT_LIBRARY,
	.rt_Pri = 0,
	.rt_Name = (char *)"objfw_rt.library",
	.rt_IdString = (char *)"ObjFW_RT " VERSION_STRING