forked from schacon/perl
/
bytecode.h
161 lines (145 loc) · 4.97 KB
/
bytecode.h
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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;
#ifdef INDIRECT_BGET_MACROS
#define BGET_FREAD(argp, len, nelem) \
bs.fread((char*)(argp),(len),(nelem),bs.data)
#define BGET_FGETC() bs.fgetc(bs.data)
#else
#define BGET_FREAD(argp, len, nelem) PerlIO_read(fp, (argp), (len)*(nelem))
#define BGET_FGETC() PerlIO_getc(fp)
#endif /* INDIRECT_BGET_MACROS */
#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()
#if INDIRECT_BGET_MACROS
#define BGET_PV(arg) STMT_START { \
BGET_U32(arg); \
if (arg) \
bs.freadpv(arg, bs.data); \
else { \
PL_bytecode_pv.xpv_pv = 0; \
PL_bytecode_pv.xpv_len = 0; \
PL_bytecode_pv.xpv_cur = 0; \
} \
} STMT_END
#else
#define BGET_PV(arg) STMT_START { \
BGET_U32(arg); \
if (arg) { \
New(666, PL_bytecode_pv.xpv_pv, arg, char); \
PerlIO_read(fp, PL_bytecode_pv.xpv_pv, arg); \
PL_bytecode_pv.xpv_len = arg; \
PL_bytecode_pv.xpv_cur = arg - 1; \
} else { \
PL_bytecode_pv.xpv_pv = 0; \
PL_bytecode_pv.xpv_len = 0; \
PL_bytecode_pv.xpv_cur = 0; \
} \
} STMT_END
#endif /* INDIRECT_BGET_MACROS */
#define BGET_comment_t(arg) \
do { arg = BGET_FGETC(); } while (arg != '\n' && arg != EOF)
/*
* 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) | lo); \
else if (((I32)hi == -1 && (I32)lo < 0) \
|| ((I32)hi == 0 && (I32)lo >= 0)) { \
arg = (I32)lo; \
} \
else { \
PL_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 = PL_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_double(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)PL_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 = PL_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 = PL_bytecode_pv.xpv_cur
#define BSET_sv_upgrade(sv, arg) (void)SvUPGRADE(sv, arg)
#define BSET_xpv(sv) do { \
SvPV_set(sv, PL_bytecode_pv.xpv_pv); \
SvCUR_set(sv, PL_bytecode_pv.xpv_cur); \
SvLEN_set(sv, PL_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, PL_bytecode_pv.xpv_pv, PL_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(arg, arg + PL_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])
#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 = ppaddr[arg]; \
} STMT_END
#define BSET_op_ppaddr(o, arg) croak("op_ppaddr not yet implemented")
#define BSET_curpad(pad, arg) pad = AvARRAY(arg)
#define BSET_OBJ_STORE(obj, ix) \
(I32)ix > PL_bytecode_obj_list_fill ? \
bset_obj_store(obj, (I32)ix) : (PL_bytecode_obj_list[ix] = obj)