258 lines
8.3 KiB
C
258 lines
8.3 KiB
C
typedef char *pvcontents;
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typedef char *strconst;
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typedef U32 PV;
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typedef char *op_tr_array;
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typedef int comment_t;
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typedef SV *svindex;
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typedef OP *opindex;
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typedef char *pvindex;
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typedef IV IV64;
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#define BGET_FREAD(argp, len, nelem) \
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bl_read(bstate->bs_fdata,(char*)(argp),(len),(nelem))
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#define BGET_FGETC() bl_getc(bstate->bs_fdata)
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#define BGET_U32(arg) \
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BGET_FREAD(&arg, sizeof(U32), 1)
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#define BGET_I32(arg) \
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BGET_FREAD(&arg, sizeof(I32), 1)
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#define BGET_U16(arg) \
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BGET_FREAD(&arg, sizeof(U16), 1)
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#define BGET_U8(arg) arg = BGET_FGETC()
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#define BGET_PV(arg) STMT_START { \
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BGET_U32(arg); \
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if (arg) { \
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New(666, bstate->bs_pv.xpv_pv, arg, char); \
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bl_read(bstate->bs_fdata, (void*)bstate->bs_pv.xpv_pv, arg, 1); \
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bstate->bs_pv.xpv_len = arg; \
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bstate->bs_pv.xpv_cur = arg - 1; \
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} else { \
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bstate->bs_pv.xpv_pv = 0; \
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bstate->bs_pv.xpv_len = 0; \
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bstate->bs_pv.xpv_cur = 0; \
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} \
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} STMT_END
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#ifdef BYTELOADER_LOG_COMMENTS
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# define BGET_comment_t(arg) \
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STMT_START { \
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char buf[1024]; \
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int i = 0; \
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do { \
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arg = BGET_FGETC(); \
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buf[i++] = (char)arg; \
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} while (arg != '\n' && arg != EOF); \
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buf[i] = '\0'; \
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PerlIO_printf(PerlIO_stderr(), "%s", buf); \
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} STMT_END
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#else
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# define BGET_comment_t(arg) \
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do { arg = BGET_FGETC(); } while (arg != '\n' && arg != EOF)
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#endif
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/*
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* In the following, sizeof(IV)*4 is just a way of encoding 32 on 64-bit-IV
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* machines such that 32-bit machine compilers don't whine about the shift
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* count being too high even though the code is never reached there.
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*/
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#define BGET_IV64(arg) STMT_START { \
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U32 hi, lo; \
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BGET_U32(hi); \
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BGET_U32(lo); \
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if (sizeof(IV) == 8) \
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arg = ((IV)hi << (sizeof(IV)*4) | (IV)lo); \
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else if (((I32)hi == -1 && (I32)lo < 0) \
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|| ((I32)hi == 0 && (I32)lo >= 0)) { \
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arg = (I32)lo; \
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} \
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else { \
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bstate->bs_iv_overflows++; \
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arg = 0; \
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} \
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} STMT_END
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#define BGET_op_tr_array(arg) do { \
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unsigned short *ary; \
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int i; \
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New(666, ary, 256, unsigned short); \
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BGET_FREAD(ary, sizeof(unsigned short), 256); \
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arg = (char *) ary; \
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} while (0)
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#define BGET_pvcontents(arg) arg = bstate->bs_pv.xpv_pv
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#define BGET_strconst(arg) STMT_START { \
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for (arg = PL_tokenbuf; (*arg = BGET_FGETC()); arg++) /* nothing */; \
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arg = PL_tokenbuf; \
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} STMT_END
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#define BGET_NV(arg) STMT_START { \
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char *str; \
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BGET_strconst(str); \
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arg = Atof(str); \
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} STMT_END
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#define BGET_objindex(arg, type) STMT_START { \
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BGET_U32(ix); \
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arg = (type)bstate->bs_obj_list[ix]; \
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} STMT_END
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#define BGET_svindex(arg) BGET_objindex(arg, svindex)
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#define BGET_opindex(arg) BGET_objindex(arg, opindex)
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#define BGET_pvindex(arg) STMT_START { \
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BGET_objindex(arg, pvindex); \
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arg = arg ? savepv(arg) : arg; \
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} STMT_END
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#define BSET_ldspecsv(sv, arg) sv = specialsv_list[arg]
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#define BSET_stpv(pv, arg) STMT_START { \
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BSET_OBJ_STORE(pv, arg); \
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SAVEFREEPV(pv); \
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} STMT_END
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#define BSET_sv_refcnt_add(svrefcnt, arg) svrefcnt += arg
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#define BSET_gp_refcnt_add(gprefcnt, arg) gprefcnt += arg
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#define BSET_gp_share(sv, arg) STMT_START { \
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gp_free((GV*)sv); \
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GvGP(sv) = GvGP(arg); \
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} STMT_END
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#define BSET_gv_fetchpv(sv, arg) sv = (SV*)gv_fetchpv(arg, TRUE, SVt_PV)
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#define BSET_gv_stashpv(sv, arg) sv = (SV*)gv_stashpv(arg, TRUE)
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#define BSET_sv_magic(sv, arg) sv_magic(sv, Nullsv, arg, 0, 0)
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#define BSET_mg_pv(mg, arg) mg->mg_ptr = arg; mg->mg_len = bstate->bs_pv.xpv_cur
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#define BSET_sv_upgrade(sv, arg) (void)SvUPGRADE(sv, arg)
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#define BSET_xpv(sv) do { \
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SvPV_set(sv, bstate->bs_pv.xpv_pv); \
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SvCUR_set(sv, bstate->bs_pv.xpv_cur); \
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SvLEN_set(sv, bstate->bs_pv.xpv_len); \
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} while (0)
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#define BSET_av_extend(sv, arg) av_extend((AV*)sv, arg)
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#define BSET_av_push(sv, arg) av_push((AV*)sv, arg)
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#define BSET_hv_store(sv, arg) \
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hv_store((HV*)sv, bstate->bs_pv.xpv_pv, bstate->bs_pv.xpv_cur, arg, 0)
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#define BSET_pv_free(pv) Safefree(pv.xpv_pv)
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#define BSET_pregcomp(o, arg) \
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((PMOP*)o)->op_pmregexp = arg ? \
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CALLREGCOMP(aTHX_ arg, arg + bstate->bs_pv.xpv_cur, ((PMOP*)o)) : 0
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#define BSET_newsv(sv, arg) \
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STMT_START { \
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sv = (arg == SVt_PVAV ? (SV*)newAV() : \
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arg == SVt_PVHV ? (SV*)newHV() : \
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NEWSV(666,0)); \
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SvUPGRADE(sv, arg); \
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} STMT_END
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#define BSET_newop(o, arg) ((o = (OP*)safemalloc(optype_size[arg])), \
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memzero((char*)o,optype_size[arg]))
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#define BSET_newopn(o, arg) STMT_START { \
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OP *oldop = o; \
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BSET_newop(o, arg); \
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oldop->op_next = o; \
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} STMT_END
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#define BSET_ret(foo) STMT_START { \
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Safefree(bstate->bs_obj_list); \
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return; \
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} STMT_END
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/*
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* Kludge special-case workaround for OP_MAPSTART
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* which needs the ppaddr for OP_GREPSTART. Blech.
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*/
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#define BSET_op_type(o, arg) STMT_START { \
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o->op_type = arg; \
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if (arg == OP_MAPSTART) \
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arg = OP_GREPSTART; \
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o->op_ppaddr = PL_ppaddr[arg]; \
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} STMT_END
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#define BSET_op_ppaddr(o, arg) Perl_croak(aTHX_ "op_ppaddr not yet implemented")
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#define BSET_curpad(pad, arg) STMT_START { \
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PL_comppad = (AV *)arg; \
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pad = AvARRAY(arg); \
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} STMT_END
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/* this works now that Sarathy's changed the CopFILE_set macro to do the SvREFCNT_inc()
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-- BKS 6-2-2000 */
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#define BSET_cop_file(cop, arg) CopFILE_set(cop,arg)
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#define BSET_cop_line(cop, arg) CopLINE_set(cop,arg)
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#define BSET_cop_stashpv(cop, arg) CopSTASHPV_set(cop,arg)
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/* this is simply stolen from the code in newATTRSUB() */
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#define BSET_push_begin(ary,cv) \
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STMT_START { \
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I32 oldscope = PL_scopestack_ix; \
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ENTER; \
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SAVECOPFILE(&PL_compiling); \
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SAVECOPLINE(&PL_compiling); \
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save_svref(&PL_rs); \
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sv_setsv(PL_rs, PL_nrs); \
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if (!PL_beginav) \
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PL_beginav = newAV(); \
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av_push(PL_beginav, cv); \
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call_list(oldscope, PL_beginav); \
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PL_curcop = &PL_compiling; \
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PL_compiling.op_private = PL_hints; \
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LEAVE; \
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} STMT_END
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#define BSET_push_init(ary,cv) \
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STMT_START { \
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av_unshift((PL_initav ? PL_initav : (PL_initav = newAV(), PL_initav)), 1); \
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av_store(PL_initav, 0, cv); \
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} STMT_END
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#define BSET_push_end(ary,cv) \
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STMT_START { \
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av_unshift((PL_endav ? PL_endav : (PL_endav = newAV(), PL_endav)), 1); \
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av_store(PL_endav, 0, cv); \
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} STMT_END
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#define BSET_OBJ_STORE(obj, ix) \
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(I32)ix > bstate->bs_obj_list_fill ? \
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bset_obj_store(aTHXo_ bstate, obj, (I32)ix) : (bstate->bs_obj_list[ix] = obj)
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/* NOTE: the bytecode header only sanity-checks the bytecode. If a script cares about
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* what version of Perl it's being called under, it should do a 'require 5.6.0' or
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* equivalent. However, since the header includes checks requiring an exact match in
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* ByteLoader versions (we can't guarantee forward compatibility), you don't
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* need to specify one:
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* use ByteLoader;
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* is all you need.
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* -- BKS, June 2000
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*/
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#define HEADER_FAIL(f) \
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Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f)
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#define HEADER_FAIL1(f, arg1) \
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Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1)
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#define HEADER_FAIL2(f, arg1, arg2) \
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Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1, arg2)
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#define BYTECODE_HEADER_CHECK \
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STMT_START { \
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U32 sz = 0; \
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strconst str; \
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\
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BGET_U32(sz); /* Magic: 'PLBC' */ \
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if (sz != 0x43424c50) { \
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HEADER_FAIL1("bad magic (want 0x43424c50, got %#x)", (int)sz); \
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} \
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BGET_strconst(str); /* archname */ \
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if (strNE(str, ARCHNAME)) { \
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HEADER_FAIL2("wrong architecture (want %s, you have %s)",str,ARCHNAME); \
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} \
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BGET_strconst(str); /* ByteLoader version */ \
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if (strNE(str, VERSION)) { \
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HEADER_FAIL2("mismatched ByteLoader versions (want %s, you have %s)", \
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str, VERSION); \
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} \
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BGET_U32(sz); /* ivsize */ \
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if (sz != IVSIZE) { \
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HEADER_FAIL("different IVSIZE"); \
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} \
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BGET_U32(sz); /* ptrsize */ \
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if (sz != PTRSIZE) { \
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HEADER_FAIL("different PTRSIZE"); \
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} \
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BGET_strconst(str); /* byteorder */ \
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if (strNE(str, STRINGIFY(BYTEORDER))) { \
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HEADER_FAIL("different byteorder"); \
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} \
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} STMT_END
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