source: trunk/essentials/dev-lang/perl/ext/ByteLoader/bytecode.h

Last change on this file was 3181, checked in by bird, 18 years ago

perl 5.8.8

File size: 12.2 KB
Line 
1typedef char *pvcontents;
2typedef char *strconst;
3typedef U32 PV;
4typedef char *op_tr_array;
5typedef int comment_t;
6typedef SV *svindex;
7typedef OP *opindex;
8typedef char *pvindex;
9
10#define BGET_FREAD(argp, len, nelem) \
11 bl_read(bstate->bs_fdata,(char*)(argp),(len),(nelem))
12#define BGET_FGETC() bl_getc(bstate->bs_fdata)
13
14/* all this should be made endianness-agnostic */
15
16#define BGET_U8(arg) arg = BGET_FGETC()
17#define BGET_U16(arg) \
18 BGET_FREAD(&arg, sizeof(U16), 1)
19#define BGET_U32(arg) \
20 BGET_FREAD(&arg, sizeof(U32), 1)
21#define BGET_UV(arg) \
22 BGET_FREAD(&arg, sizeof(UV), 1)
23#define BGET_PADOFFSET(arg) \
24 BGET_FREAD(&arg, sizeof(PADOFFSET), 1)
25#define BGET_long(arg) \
26 BGET_FREAD(&arg, sizeof(long), 1)
27
28#define BGET_I32(arg) BGET_U32(arg)
29#define BGET_IV(arg) BGET_UV(arg)
30
31#define BGET_PV(arg) STMT_START { \
32 BGET_U32(arg); \
33 if (arg) { \
34 Newx(bstate->bs_pv.xpv_pv, arg, char); \
35 bl_read(bstate->bs_fdata, bstate->bs_pv.xpv_pv, arg, 1); \
36 bstate->bs_pv.xpv_len = arg; \
37 bstate->bs_pv.xpv_cur = arg - 1; \
38 } else { \
39 bstate->bs_pv.xpv_pv = 0; \
40 bstate->bs_pv.xpv_len = 0; \
41 bstate->bs_pv.xpv_cur = 0; \
42 } \
43 } STMT_END
44
45#ifdef BYTELOADER_LOG_COMMENTS
46# define BGET_comment_t(arg) \
47 STMT_START { \
48 char buf[1024]; \
49 int i = 0; \
50 do { \
51 arg = BGET_FGETC(); \
52 buf[i++] = (char)arg; \
53 } while (arg != '\n' && arg != EOF); \
54 buf[i] = '\0'; \
55 PerlIO_printf(PerlIO_stderr(), "%s", buf); \
56 } STMT_END
57#else
58# define BGET_comment_t(arg) \
59 do { arg = BGET_FGETC(); } while (arg != '\n' && arg != EOF)
60#endif
61
62
63#define BGET_op_tr_array(arg) do { \
64 unsigned short *ary, len; \
65 BGET_U16(len); \
66 Newx(ary, len, unsigned short); \
67 BGET_FREAD(ary, sizeof(unsigned short), len); \
68 arg = (char *) ary; \
69 } while (0)
70
71#define BGET_pvcontents(arg) arg = bstate->bs_pv.xpv_pv
72#define BGET_strconst(arg) STMT_START { \
73 for (arg = PL_tokenbuf; (*arg = BGET_FGETC()); arg++) /* nothing */; \
74 arg = PL_tokenbuf; \
75 } STMT_END
76
77#define BGET_NV(arg) STMT_START { \
78 char *str; \
79 BGET_strconst(str); \
80 arg = Atof(str); \
81 } STMT_END
82
83#define BGET_objindex(arg, type) STMT_START { \
84 BGET_U32(ix); \
85 arg = (type)bstate->bs_obj_list[ix]; \
86 } STMT_END
87#define BGET_svindex(arg) BGET_objindex(arg, svindex)
88#define BGET_opindex(arg) BGET_objindex(arg, opindex)
89#define BGET_pvindex(arg) STMT_START { \
90 BGET_objindex(arg, pvindex); \
91 arg = arg ? savepv(arg) : arg; \
92 } STMT_END
93
94#define BSET_ldspecsv(sv, arg) sv = specialsv_list[arg]
95#define BSET_ldspecsvx(sv, arg) STMT_START { \
96 BSET_ldspecsv(sv, arg); \
97 BSET_OBJ_STOREX(sv); \
98 } STMT_END
99
100#define BSET_stpv(pv, arg) STMT_START { \
101 BSET_OBJ_STORE(pv, arg); \
102 SAVEFREEPV(pv); \
103 } STMT_END
104
105#define BSET_sv_refcnt_add(svrefcnt, arg) svrefcnt += arg
106#define BSET_gp_refcnt_add(gprefcnt, arg) gprefcnt += arg
107#define BSET_gp_share(sv, arg) STMT_START { \
108 gp_free((GV*)sv); \
109 GvGP(sv) = GvGP(arg); \
110 } STMT_END
111
112#define BSET_gv_fetchpv(sv, arg) sv = (SV*)gv_fetchpv(arg, TRUE, SVt_PV)
113#define BSET_gv_fetchpvx(sv, arg) STMT_START { \
114 BSET_gv_fetchpv(sv, arg); \
115 BSET_OBJ_STOREX(sv); \
116 } STMT_END
117
118#define BSET_gv_stashpv(sv, arg) sv = (SV*)gv_stashpv(arg, TRUE)
119#define BSET_gv_stashpvx(sv, arg) STMT_START { \
120 BSET_gv_stashpv(sv, arg); \
121 BSET_OBJ_STOREX(sv); \
122 } STMT_END
123
124#define BSET_sv_magic(sv, arg) sv_magic(sv, Nullsv, arg, 0, 0)
125#define BSET_mg_name(mg, arg) mg->mg_ptr = arg; mg->mg_len = bstate->bs_pv.xpv_cur
126#define BSET_mg_namex(mg, arg) \
127 (mg->mg_ptr = (char*)SvREFCNT_inc((SV*)arg), \
128 mg->mg_len = HEf_SVKEY)
129#define BSET_xmg_stash(sv, arg) *(SV**)&(((XPVMG*)SvANY(sv))->xmg_stash) = (arg)
130#define BSET_sv_upgrade(sv, arg) (void)SvUPGRADE(sv, arg)
131#define BSET_xrv(sv, arg) SvRV_set(sv, arg)
132#define BSET_xpv(sv) do { \
133 SvPV_set(sv, bstate->bs_pv.xpv_pv); \
134 SvCUR_set(sv, bstate->bs_pv.xpv_cur); \
135 SvLEN_set(sv, bstate->bs_pv.xpv_len); \
136 } while (0)
137#define BSET_xpv_cur(sv, arg) SvCUR_set(sv, arg)
138#define BSET_xpv_len(sv, arg) SvLEN_set(sv, arg)
139#define BSET_xiv(sv, arg) SvIV_set(sv, arg)
140#define BSET_xnv(sv, arg) SvNV_set(sv, arg)
141
142#define BSET_av_extend(sv, arg) av_extend((AV*)sv, arg)
143
144#define BSET_av_push(sv, arg) av_push((AV*)sv, arg)
145#define BSET_av_pushx(sv, arg) (AvARRAY(sv)[++AvFILLp(sv)] = arg)
146#define BSET_hv_store(sv, arg) \
147 hv_store((HV*)sv, bstate->bs_pv.xpv_pv, bstate->bs_pv.xpv_cur, arg, 0)
148#define BSET_pv_free(pv) Safefree(pv.xpv_pv)
149
150
151#ifdef USE_ITHREADS
152
153/* copied after the code in newPMOP() */
154#define BSET_pregcomp(o, arg) \
155 STMT_START { \
156 SV* repointer; \
157 REGEXP* rx = arg ? \
158 CALLREGCOMP(aTHX_ arg, arg + bstate->bs_pv.xpv_cur, cPMOPx(o)) : \
159 Null(REGEXP*); \
160 if(av_len((AV*) PL_regex_pad[0]) > -1) { \
161 repointer = av_pop((AV*)PL_regex_pad[0]); \
162 cPMOPx(o)->op_pmoffset = SvIV(repointer); \
163 SvREPADTMP_off(repointer); \
164 sv_setiv(repointer,PTR2IV(rx)); \
165 } else { \
166 repointer = newSViv(PTR2IV(rx)); \
167 av_push(PL_regex_padav,SvREFCNT_inc(repointer)); \
168 cPMOPx(o)->op_pmoffset = av_len(PL_regex_padav); \
169 PL_regex_pad = AvARRAY(PL_regex_padav); \
170 } \
171 } STMT_END
172
173#else
174#define BSET_pregcomp(o, arg) \
175 STMT_START { \
176 PM_SETRE(((PMOP*)o), (arg ? \
177 CALLREGCOMP(aTHX_ arg, arg + bstate->bs_pv.xpv_cur, cPMOPx(o)): \
178 Null(REGEXP*))); \
179 } STMT_END
180
181#endif /* USE_THREADS */
182
183
184#define BSET_newsv(sv, arg) \
185 switch(arg) { \
186 case SVt_PVAV: \
187 sv = (SV*)newAV(); \
188 break; \
189 case SVt_PVHV: \
190 sv = (SV*)newHV(); \
191 break; \
192 default: \
193 sv = NEWSV(0,0); \
194 SvUPGRADE(sv, (arg)); \
195 }
196#define BSET_newsvx(sv, arg) STMT_START { \
197 BSET_newsv(sv, arg & SVTYPEMASK); \
198 SvFLAGS(sv) = arg; \
199 BSET_OBJ_STOREX(sv); \
200 } STMT_END
201
202#define BSET_newop(o, arg) NewOpSz(666, o, arg)
203#define BSET_newopx(o, arg) STMT_START { \
204 register int sz = arg & 0x7f; \
205 register OP* newop; \
206 BSET_newop(newop, sz); \
207 /* newop->op_next = o; XXX */ \
208 o = newop; \
209 arg >>=7; \
210 BSET_op_type(o, arg); \
211 BSET_OBJ_STOREX(o); \
212 } STMT_END
213
214#define BSET_newopn(o, arg) STMT_START { \
215 OP *oldop = o; \
216 BSET_newop(o, arg); \
217 oldop->op_next = o; \
218 } STMT_END
219
220#define BSET_ret(foo) STMT_START { \
221 Safefree(bstate->bs_obj_list); \
222 return 0; \
223 } STMT_END
224
225#define BSET_op_pmstashpv(op, arg) PmopSTASHPV_set(op, arg)
226
227/*
228 * stolen from toke.c: better if that was a function.
229 * in toke.c there are also #ifdefs for dosish systems and i/o layers
230 */
231
232#if defined(HAS_FCNTL) && defined(F_SETFD)
233#define set_clonex(fp) \
234 STMT_START { \
235 int fd = PerlIO_fileno(fp); \
236 fcntl(fd,F_SETFD,fd >= 3); \
237 } STMT_END
238#else
239#define set_clonex(fp)
240#endif
241
242#define BSET_data(dummy,arg) \
243 STMT_START { \
244 GV *gv; \
245 char *pname = "main"; \
246 if (arg == 'D') \
247 pname = HvNAME(PL_curstash ? PL_curstash : PL_defstash); \
248 gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), TRUE, SVt_PVIO);\
249 GvMULTI_on(gv); \
250 if (!GvIO(gv)) \
251 GvIOp(gv) = newIO(); \
252 IoIFP(GvIOp(gv)) = PL_rsfp; \
253 set_clonex(PL_rsfp); \
254 /* Mark this internal pseudo-handle as clean */ \
255 IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; \
256 if (PL_preprocess) \
257 IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; \
258 else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) \
259 IoTYPE(GvIOp(gv)) = IoTYPE_STD; \
260 else \
261 IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; \
262 Safefree(bstate->bs_obj_list); \
263 return 1; \
264 } STMT_END
265
266/* stolen from op.c */
267#define BSET_load_glob(foo, gv) \
268 STMT_START { \
269 GV *glob_gv; \
270 ENTER; \
271 Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, \
272 newSVpvn("File::Glob", 10), Nullsv, Nullsv, Nullsv); \
273 glob_gv = gv_fetchpv("File::Glob::csh_glob", FALSE, SVt_PVCV); \
274 GvCV(gv) = GvCV(glob_gv); \
275 SvREFCNT_inc((SV*)GvCV(gv)); \
276 GvIMPORTED_CV_on(gv); \
277 LEAVE; \
278 } STMT_END
279
280/*
281 * Kludge special-case workaround for OP_MAPSTART
282 * which needs the ppaddr for OP_GREPSTART. Blech.
283 */
284#define BSET_op_type(o, arg) STMT_START { \
285 o->op_type = arg; \
286 if (arg == OP_MAPSTART) \
287 arg = OP_GREPSTART; \
288 o->op_ppaddr = PL_ppaddr[arg]; \
289 } STMT_END
290#define BSET_op_ppaddr(o, arg) Perl_croak(aTHX_ "op_ppaddr not yet implemented")
291#define BSET_curpad(pad, arg) STMT_START { \
292 PL_comppad = (AV *)arg; \
293 pad = AvARRAY(arg); \
294 } STMT_END
295
296#ifdef USE_ITHREADS
297#define BSET_cop_file(cop, arg) CopFILE_set(cop,arg)
298#define BSET_cop_stashpv(cop, arg) CopSTASHPV_set(cop,arg)
299#else
300/* this works now that Sarathy's changed the CopFILE_set macro to do the SvREFCNT_inc()
301 -- BKS 6-2-2000 */
302/* that really meant the actual CopFILEGV_set */
303#define BSET_cop_filegv(cop, arg) CopFILEGV_set(cop,arg)
304#define BSET_cop_stash(cop,arg) CopSTASH_set(cop,(HV*)arg)
305#endif
306
307/* this is simply stolen from the code in newATTRSUB() */
308#define BSET_push_begin(ary,cv) \
309 STMT_START { \
310 I32 oldscope = PL_scopestack_ix; \
311 ENTER; \
312 SAVECOPFILE(&PL_compiling); \
313 SAVECOPLINE(&PL_compiling); \
314 if (!PL_beginav) \
315 PL_beginav = newAV(); \
316 av_push(PL_beginav, (SV*)cv); \
317 GvCV(CvGV(cv)) = 0; /* cv has been hijacked */\
318 call_list(oldscope, PL_beginav); \
319 PL_curcop = &PL_compiling; \
320 PL_compiling.op_private = (U8)(PL_hints & HINT_PRIVATE_MASK);\
321 LEAVE; \
322 } STMT_END
323#define BSET_push_init(ary,cv) \
324 STMT_START { \
325 av_unshift((PL_initav ? PL_initav : \
326 (PL_initav = newAV(), PL_initav)), 1); \
327 av_store(PL_initav, 0, cv); \
328 } STMT_END
329#define BSET_push_end(ary,cv) \
330 STMT_START { \
331 av_unshift((PL_endav ? PL_endav : \
332 (PL_endav = newAV(), PL_endav)), 1); \
333 av_store(PL_endav, 0, cv); \
334 } STMT_END
335#define BSET_OBJ_STORE(obj, ix) \
336 ((I32)ix > bstate->bs_obj_list_fill ? \
337 bset_obj_store(aTHX_ bstate, obj, (I32)ix) : \
338 (bstate->bs_obj_list[ix] = obj), \
339 bstate->bs_ix = ix+1)
340#define BSET_OBJ_STOREX(obj) \
341 (bstate->bs_ix > bstate->bs_obj_list_fill ? \
342 bset_obj_store(aTHX_ bstate, obj, bstate->bs_ix) : \
343 (bstate->bs_obj_list[bstate->bs_ix] = obj), \
344 bstate->bs_ix++)
345
346#define BSET_signal(cv, name) \
347 mg_set(*hv_store(GvHV(gv_fetchpv("SIG", TRUE, SVt_PVHV)), \
348 name, strlen(name), cv, 0))
349
350#define BSET_xhv_name(hv, name) hv_name_set((HV*)hv, name, strlen(name), 0)
351
352/* NOTE: the bytecode header only sanity-checks the bytecode. If a script cares about
353 * what version of Perl it's being called under, it should do a 'use 5.006_001' or
354 * equivalent. However, since the header includes checks requiring an exact match in
355 * ByteLoader versions (we can't guarantee forward compatibility), you don't
356 * need to specify one:
357 * use ByteLoader;
358 * is all you need.
359 * -- BKS, June 2000
360*/
361
362#define HEADER_FAIL(f) \
363 Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f)
364#define HEADER_FAIL1(f, arg1) \
365 Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1)
366#define HEADER_FAIL2(f, arg1, arg2) \
367 Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1, arg2)
368
369#define BYTECODE_HEADER_CHECK \
370 STMT_START { \
371 U32 sz = 0; \
372 strconst str; \
373 \
374 BGET_U32(sz); /* Magic: 'PLBC' */ \
375 if (sz != 0x43424c50) { \
376 HEADER_FAIL1("bad magic (want 0x43424c50, got %#x)", (int)sz); \
377 } \
378 BGET_strconst(str); /* archname */ \
379 if (strNE(str, ARCHNAME)) { \
380 HEADER_FAIL2("wrong architecture (want %s, you have %s)",str,ARCHNAME); \
381 } \
382 BGET_strconst(str); /* ByteLoader version */ \
383 if (strNE(str, VERSION)) { \
384 HEADER_FAIL2("mismatched ByteLoader versions (want %s, you have %s)", \
385 str, VERSION); \
386 } \
387 BGET_U32(sz); /* ivsize */ \
388 if (sz != IVSIZE) { \
389 HEADER_FAIL("different IVSIZE"); \
390 } \
391 BGET_U32(sz); /* ptrsize */ \
392 if (sz != PTRSIZE) { \
393 HEADER_FAIL("different PTRSIZE"); \
394 } \
395 } STMT_END
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