[perl5.git] / ext / ByteLoader / bytecode.h

typedef char *pvcontents;
typedef char *strconst;
typedef U32 PV;
typedef char *op_tr_array;
typedef int comment_t;
typedef SV *svindex;
typedef OP *opindex;
typedef IV IV64;

#define BGET_FREAD(argp, len, nelem)	\
	 bs.pfread((char*)(argp),(len),(nelem),bs.data)
#define BGET_FGETC() bs.pfgetc(bs.data)

#define BGET_U32(arg)	\
	BGET_FREAD(&arg, sizeof(U32), 1); arg = PerlSock_ntohl((U32)arg)
#define BGET_I32(arg)	\
	BGET_FREAD(&arg, sizeof(I32), 1); arg = (I32)PerlSock_ntohl((U32)arg)
#define BGET_U16(arg)	\
	BGET_FREAD(&arg, sizeof(U16), 1); arg = PerlSock_ntohs((U16)arg)
#define BGET_U8(arg)	arg = BGET_FGETC()

#define BGET_PV(arg)	STMT_START {	\
	BGET_U32(arg);			\
	if (arg)			\
	    bs.pfreadpv(arg, bs.data, &bytecode_pv);	\
	else {				\
	    bytecode_pv.xpv_pv = 0;		\
	    bytecode_pv.xpv_len = 0;		\
	    bytecode_pv.xpv_cur = 0;		\
	}				\
    } STMT_END

#ifdef BYTELOADER_LOG_COMMENTS
#  define BGET_comment_t(arg) \
    STMT_START {							\
	char buf[1024];							\
	int i = 0;							\
	do {								\
	    arg = BGET_FGETC();						\
	    buf[i++] = (char)arg;					\
	} while (arg != '\n' && arg != EOF);				\
	buf[i] = '\0';							\
	PerlIO_printf(PerlIO_stderr(), "%s", buf);			\
    } STMT_END
#else
#  define BGET_comment_t(arg) \
	do { arg = BGET_FGETC(); } while (arg != '\n' && arg != EOF)
#endif

/*
 * In the following, sizeof(IV)*4 is just a way of encoding 32 on 64-bit-IV
 * machines such that 32-bit machine compilers don't whine about the shift
 * count being too high even though the code is never reached there.
 */
#define BGET_IV64(arg) STMT_START {			\
	U32 hi, lo;					\
	BGET_U32(hi);					\
	BGET_U32(lo);					\
	if (sizeof(IV) == 8)				\
	    arg = ((IV)hi << (sizeof(IV)*4) | (IV)lo);	\
	else if (((I32)hi == -1 && (I32)lo < 0)		\
		 || ((I32)hi == 0 && (I32)lo >= 0)) {	\
	    arg = (I32)lo;				\
	}						\
	else {						\
	    bytecode_iv_overflows++;				\
	    arg = 0;					\
	}						\
    } STMT_END

#define BGET_op_tr_array(arg) do {	\
	unsigned short *ary;		\
	int i;				\
	New(666, ary, 256, unsigned short); \
	BGET_FREAD(ary, 256, 2);	\
	for (i = 0; i < 256; i++)	\
	    ary[i] = PerlSock_ntohs(ary[i]);	\
	arg = (char *) ary;		\
    } while (0)

#define BGET_pvcontents(arg)	arg = bytecode_pv.xpv_pv
#define BGET_strconst(arg) STMT_START {	\
	for (arg = PL_tokenbuf; (*arg = BGET_FGETC()); arg++) /* nothing */; \
	arg = PL_tokenbuf;			\
    } STMT_END

#define BGET_NV(arg) STMT_START {	\
	char *str;			\
	BGET_strconst(str);		\
	arg = Atof(str);		\
    } STMT_END

#define BGET_objindex(arg, type) STMT_START {	\
	U32 ix;					\
	BGET_U32(ix);				\
	arg = (type)bytecode_obj_list[ix];		\
    } STMT_END
#define BGET_svindex(arg) BGET_objindex(arg, svindex)
#define BGET_opindex(arg) BGET_objindex(arg, opindex)

#define BSET_ldspecsv(sv, arg) sv = specialsv_list[arg]
				    
#define BSET_sv_refcnt_add(svrefcnt, arg)	svrefcnt += arg
#define BSET_gp_refcnt_add(gprefcnt, arg)	gprefcnt += arg
#define BSET_gp_share(sv, arg) STMT_START {	\
	gp_free((GV*)sv);			\
	GvGP(sv) = GvGP(arg);			\
    } STMT_END

#define BSET_gv_fetchpv(sv, arg)	sv = (SV*)gv_fetchpv(arg, TRUE, SVt_PV)
#define BSET_gv_stashpv(sv, arg)	sv = (SV*)gv_stashpv(arg, TRUE)
#define BSET_sv_magic(sv, arg)		sv_magic(sv, Nullsv, arg, 0, 0)
#define BSET_mg_pv(mg, arg)	mg->mg_ptr = arg; mg->mg_len = bytecode_pv.xpv_cur
#define BSET_sv_upgrade(sv, arg)	(void)SvUPGRADE(sv, arg)
#define BSET_xpv(sv)	do {	\
	SvPV_set(sv, bytecode_pv.xpv_pv);	\
	SvCUR_set(sv, bytecode_pv.xpv_cur);	\
	SvLEN_set(sv, bytecode_pv.xpv_len);	\
    } while (0)
#define BSET_av_extend(sv, arg)	av_extend((AV*)sv, arg)

#define BSET_av_push(sv, arg)	av_push((AV*)sv, arg)
#define BSET_hv_store(sv, arg)	\
	hv_store((HV*)sv, bytecode_pv.xpv_pv, bytecode_pv.xpv_cur, arg, 0)
#define BSET_pv_free(pv)	Safefree(pv.xpv_pv)
#define BSET_pregcomp(o, arg) \
	((PMOP*)o)->op_pmregexp = arg ? \
		CALLREGCOMP(aTHX_ arg, arg + bytecode_pv.xpv_cur, ((PMOP*)o)) : 0
#define BSET_newsv(sv, arg)	sv = NEWSV(666,0); SvUPGRADE(sv, arg)
#define BSET_newop(o, arg)	((o = (OP*)safemalloc(optype_size[arg])), \
				 memzero((char*)o,optype_size[arg]))
#define BSET_newopn(o, arg) STMT_START {	\
	OP *oldop = o;				\
	BSET_newop(o, arg);			\
	oldop->op_next = o;			\
    } STMT_END

#define BSET_ret(foo) return

/*
 * Kludge special-case workaround for OP_MAPSTART
 * which needs the ppaddr for OP_GREPSTART. Blech.
 */
#define BSET_op_type(o, arg) STMT_START {	\
	o->op_type = arg;			\
	if (arg == OP_MAPSTART)			\
	    arg = OP_GREPSTART;			\
	o->op_ppaddr = PL_ppaddr[arg];		\
    } STMT_END
#define BSET_op_ppaddr(o, arg) Perl_croak(aTHX_ "op_ppaddr not yet implemented")
#define BSET_curpad(pad, arg) STMT_START {	\
	PL_comppad = (AV *)arg;			\
	pad = AvARRAY(arg);			\
    } STMT_END
#define BSET_cop_file(cop, arg)		CopFILE_set(cop,arg)
#define BSET_cop_line(cop, arg)		CopLINE_set(cop,arg)
#define BSET_cop_stashpv(cop, arg)	CopSTASHPV_set(cop,arg)

#define BSET_OBJ_STORE(obj, ix)		\
	(I32)ix > bytecode_obj_list_fill ?	\
	bset_obj_store(aTHXo_ obj, (I32)ix) : (bytecode_obj_list[ix] = obj)
Commit	Line	Data
e8edd1e6 TH	1	typedef char *pvcontents;
	2	typedef char *strconst;
	3	typedef U32 PV;
	4	typedef char *op_tr_array;
	5	typedef int comment_t;
	6	typedef SV *svindex;
	7	typedef OP *opindex;
	8	typedef IV IV64;
	9
	10	#define BGET_FREAD(argp, len, nelem) \
4f63d024 GS	11	bs.pfread((char*)(argp),(len),(nelem),bs.data)
4f63d024 GS	12	#define BGET_FGETC() bs.pfgetc(bs.data)
e8edd1e6 TH	13
	14	#define BGET_U32(arg) \
	15	BGET_FREAD(&arg, sizeof(U32), 1); arg = PerlSock_ntohl((U32)arg)
e8edd1e6 TH	16	#define BGET_I32(arg) \
	17	BGET_FREAD(&arg, sizeof(I32), 1); arg = (I32)PerlSock_ntohl((U32)arg)
	18	#define BGET_U16(arg) \
	19	BGET_FREAD(&arg, sizeof(U16), 1); arg = PerlSock_ntohs((U16)arg)
	20	#define BGET_U8(arg) arg = BGET_FGETC()
	21
	22	#define BGET_PV(arg) STMT_START { \
	23	BGET_U32(arg); \
	24	if (arg) \
4f63d024	25	bs.pfreadpv(arg, bs.data, &bytecode_pv); \
e8edd1e6 TH	26	else { \
	27	bytecode_pv.xpv_pv = 0; \
	28	bytecode_pv.xpv_len = 0; \
	29	bytecode_pv.xpv_cur = 0; \
	30	} \
	31	} STMT_END
	32
fc290457 GS	33	#ifdef BYTELOADER_LOG_COMMENTS
	34	# define BGET_comment_t(arg) \
	35	STMT_START { \
	36	char buf[1024]; \
	37	int i = 0; \
	38	do { \
	39	arg = BGET_FGETC(); \
	40	buf[i++] = (char)arg; \
	41	} while (arg != '\n' && arg != EOF); \
	42	buf[i] = '\0'; \
	43	PerlIO_printf(PerlIO_stderr(), "%s", buf); \
	44	} STMT_END
	45	#else
	46	# define BGET_comment_t(arg) \
e8edd1e6	47	do { arg = BGET_FGETC(); } while (arg != '\n' && arg != EOF)
fc290457	48	#endif
e8edd1e6 TH	49
	50	/*
	51	* In the following, sizeof(IV)*4 is just a way of encoding 32 on 64-bit-IV
	52	* machines such that 32-bit machine compilers don't whine about the shift
	53	* count being too high even though the code is never reached there.
	54	*/
	55	#define BGET_IV64(arg) STMT_START { \
	56	U32 hi, lo; \
	57	BGET_U32(hi); \
	58	BGET_U32(lo); \
	59	if (sizeof(IV) == 8) \
42718184	60	arg = ((IV)hi << (sizeof(IV)*4) \| (IV)lo); \
e8edd1e6 TH	61	else if (((I32)hi == -1 && (I32)lo < 0) \
	62	\|\| ((I32)hi == 0 && (I32)lo >= 0)) { \
	63	arg = (I32)lo; \
	64	} \
	65	else { \
	66	bytecode_iv_overflows++; \
	67	arg = 0; \
	68	} \
	69	} STMT_END
	70
	71	#define BGET_op_tr_array(arg) do { \
	72	unsigned short *ary; \
	73	int i; \
	74	New(666, ary, 256, unsigned short); \
	75	BGET_FREAD(ary, 256, 2); \
	76	for (i = 0; i < 256; i++) \
	77	ary[i] = PerlSock_ntohs(ary[i]); \
	78	arg = (char *) ary; \
	79	} while (0)
	80
	81	#define BGET_pvcontents(arg) arg = bytecode_pv.xpv_pv
	82	#define BGET_strconst(arg) STMT_START { \
	83	for (arg = PL_tokenbuf; (arg = BGET_FGETC()); arg++) / nothing */; \
	84	arg = PL_tokenbuf; \
	85	} STMT_END
	86
cad2e5aa	87	#define BGET_NV(arg) STMT_START { \
e8edd1e6 TH	88	char *str; \
e8edd1e6 TH	89	BGET_strconst(str); \
ac26f109	90	arg = Atof(str); \
e8edd1e6 TH	91	} STMT_END
	92
	93	#define BGET_objindex(arg, type) STMT_START { \
	94	U32 ix; \
	95	BGET_U32(ix); \
	96	arg = (type)bytecode_obj_list[ix]; \
	97	} STMT_END
	98	#define BGET_svindex(arg) BGET_objindex(arg, svindex)
	99	#define BGET_opindex(arg) BGET_objindex(arg, opindex)
	100
	101	#define BSET_ldspecsv(sv, arg) sv = specialsv_list[arg]
	102
	103	#define BSET_sv_refcnt_add(svrefcnt, arg) svrefcnt += arg
	104	#define BSET_gp_refcnt_add(gprefcnt, arg) gprefcnt += arg
	105	#define BSET_gp_share(sv, arg) STMT_START { \
	106	gp_free((GV*)sv); \
	107	GvGP(sv) = GvGP(arg); \
	108	} STMT_END
	109
	110	#define BSET_gv_fetchpv(sv, arg) sv = (SV*)gv_fetchpv(arg, TRUE, SVt_PV)
	111	#define BSET_gv_stashpv(sv, arg) sv = (SV*)gv_stashpv(arg, TRUE)
	112	#define BSET_sv_magic(sv, arg) sv_magic(sv, Nullsv, arg, 0, 0)
	113	#define BSET_mg_pv(mg, arg) mg->mg_ptr = arg; mg->mg_len = bytecode_pv.xpv_cur
	114	#define BSET_sv_upgrade(sv, arg) (void)SvUPGRADE(sv, arg)
	115	#define BSET_xpv(sv) do { \
	116	SvPV_set(sv, bytecode_pv.xpv_pv); \
	117	SvCUR_set(sv, bytecode_pv.xpv_cur); \
	118	SvLEN_set(sv, bytecode_pv.xpv_len); \
	119	} while (0)
	120	#define BSET_av_extend(sv, arg) av_extend((AV*)sv, arg)
	121
	122	#define BSET_av_push(sv, arg) av_push((AV*)sv, arg)
	123	#define BSET_hv_store(sv, arg) \
	124	hv_store((HV*)sv, bytecode_pv.xpv_pv, bytecode_pv.xpv_cur, arg, 0)
	125	#define BSET_pv_free(pv) Safefree(pv.xpv_pv)
	126	#define BSET_pregcomp(o, arg) \
	127	((PMOP*)o)->op_pmregexp = arg ? \
cea2e8a9	128	CALLREGCOMP(aTHX_ arg, arg + bytecode_pv.xpv_cur, ((PMOP*)o)) : 0
e8edd1e6	129	#define BSET_newsv(sv, arg) sv = NEWSV(666,0); SvUPGRADE(sv, arg)
fc290457 GS	130	#define BSET_newop(o, arg) ((o = (OP*)safemalloc(optype_size[arg])), \
fc290457 GS	131	memzero((char*)o,optype_size[arg]))
e8edd1e6 TH	132	#define BSET_newopn(o, arg) STMT_START { \
	133	OP *oldop = o; \
	134	BSET_newop(o, arg); \
	135	oldop->op_next = o; \
	136	} STMT_END
	137
	138	#define BSET_ret(foo) return
	139
	140	/*
	141	* Kludge special-case workaround for OP_MAPSTART
	142	* which needs the ppaddr for OP_GREPSTART. Blech.
	143	*/
	144	#define BSET_op_type(o, arg) STMT_START { \
	145	o->op_type = arg; \
	146	if (arg == OP_MAPSTART) \
	147	arg = OP_GREPSTART; \
	148	o->op_ppaddr = PL_ppaddr[arg]; \
	149	} STMT_END
cea2e8a9	150	#define BSET_op_ppaddr(o, arg) Perl_croak(aTHX_ "op_ppaddr not yet implemented")
e8edd1e6 TH	151	#define BSET_curpad(pad, arg) STMT_START { \
	152	PL_comppad = (AV *)arg; \
	153	pad = AvARRAY(arg); \
	154	} STMT_END
11faa288 GS	155	#define BSET_cop_file(cop, arg) CopFILE_set(cop,arg)
	156	#define BSET_cop_line(cop, arg) CopLINE_set(cop,arg)
	157	#define BSET_cop_stashpv(cop, arg) CopSTASHPV_set(cop,arg)
e8edd1e6 TH	158
	159	#define BSET_OBJ_STORE(obj, ix) \
	160	(I32)ix > bytecode_obj_list_fill ? \
0cb96387	161	bset_obj_store(aTHXo_ obj, (I32)ix) : (bytecode_obj_list[ix] = obj)