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/cvs/cvsroot/staticperl/perl/ext/ByteLoader/bytecode.h
Revision: 1.1
Committed: Thu Jun 30 14:26:44 2005 UTC (21 years, 3 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: PERL-5-8-7, HEAD
Branch point for: PERL
Log Message:
*** empty log message ***

File Contents

# User Rev Content
1 root 1.1 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 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     New(666, 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     New(666, 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_sv_upgrade(sv, arg) (void)SvUPGRADE(sv, arg)
130     #define BSET_xpv(sv) do { \
131     SvPV_set(sv, bstate->bs_pv.xpv_pv); \
132     SvCUR_set(sv, bstate->bs_pv.xpv_cur); \
133     SvLEN_set(sv, bstate->bs_pv.xpv_len); \
134     } while (0)
135     #define BSET_av_extend(sv, arg) av_extend((AV*)sv, arg)
136    
137     #define BSET_av_push(sv, arg) av_push((AV*)sv, arg)
138     #define BSET_av_pushx(sv, arg) (AvARRAY(sv)[++AvFILLp(sv)] = arg)
139     #define BSET_hv_store(sv, arg) \
140     hv_store((HV*)sv, bstate->bs_pv.xpv_pv, bstate->bs_pv.xpv_cur, arg, 0)
141     #define BSET_pv_free(pv) Safefree(pv.xpv_pv)
142    
143    
144     #ifdef USE_ITHREADS
145    
146     /* copied after the code in newPMOP() */
147     #define BSET_pregcomp(o, arg) \
148     STMT_START { \
149     SV* repointer; \
150     REGEXP* rx = arg ? \
151     CALLREGCOMP(aTHX_ arg, arg + bstate->bs_pv.xpv_cur, cPMOPx(o)) : \
152     Null(REGEXP*); \
153     if(av_len((AV*) PL_regex_pad[0]) > -1) { \
154     repointer = av_pop((AV*)PL_regex_pad[0]); \
155     cPMOPx(o)->op_pmoffset = SvIV(repointer); \
156     SvREPADTMP_off(repointer); \
157     sv_setiv(repointer,PTR2IV(rx)); \
158     } else { \
159     repointer = newSViv(PTR2IV(rx)); \
160     av_push(PL_regex_padav,SvREFCNT_inc(repointer)); \
161     cPMOPx(o)->op_pmoffset = av_len(PL_regex_padav); \
162     PL_regex_pad = AvARRAY(PL_regex_padav); \
163     } \
164     } STMT_END
165    
166     #else
167     #define BSET_pregcomp(o, arg) \
168     STMT_START { \
169     PM_SETRE(((PMOP*)o), (arg ? \
170     CALLREGCOMP(aTHX_ arg, arg + bstate->bs_pv.xpv_cur, cPMOPx(o)): \
171     Null(REGEXP*))); \
172     } STMT_END
173    
174     #endif /* USE_THREADS */
175    
176    
177     #define BSET_newsv(sv, arg) \
178     switch(arg) { \
179     case SVt_PVAV: \
180     sv = (SV*)newAV(); \
181     break; \
182     case SVt_PVHV: \
183     sv = (SV*)newHV(); \
184     break; \
185     default: \
186     sv = NEWSV(0,0); \
187     SvUPGRADE(sv, (arg)); \
188     }
189     #define BSET_newsvx(sv, arg) STMT_START { \
190     BSET_newsv(sv, arg & SVTYPEMASK); \
191     SvFLAGS(sv) = arg; \
192     BSET_OBJ_STOREX(sv); \
193     } STMT_END
194    
195     #define BSET_newop(o, arg) NewOpSz(666, o, arg)
196     #define BSET_newopx(o, arg) STMT_START { \
197     register int sz = arg & 0x7f; \
198     register OP* newop; \
199     BSET_newop(newop, sz); \
200     /* newop->op_next = o; XXX */ \
201     o = newop; \
202     arg >>=7; \
203     BSET_op_type(o, arg); \
204     BSET_OBJ_STOREX(o); \
205     } STMT_END
206    
207     #define BSET_newopn(o, arg) STMT_START { \
208     OP *oldop = o; \
209     BSET_newop(o, arg); \
210     oldop->op_next = o; \
211     } STMT_END
212    
213     #define BSET_ret(foo) STMT_START { \
214     Safefree(bstate->bs_obj_list); \
215     return 0; \
216     } STMT_END
217    
218     #define BSET_op_pmstashpv(op, arg) PmopSTASHPV_set(op, arg)
219    
220     /*
221     * stolen from toke.c: better if that was a function.
222     * in toke.c there are also #ifdefs for dosish systems and i/o layers
223     */
224    
225     #if defined(HAS_FCNTL) && defined(F_SETFD)
226     #define set_clonex(fp) \
227     STMT_START { \
228     int fd = PerlIO_fileno(fp); \
229     fcntl(fd,F_SETFD,fd >= 3); \
230     } STMT_END
231     #else
232     #define set_clonex(fp)
233     #endif
234    
235     #define BSET_data(dummy,arg) \
236     STMT_START { \
237     GV *gv; \
238     char *pname = "main"; \
239     if (arg == 'D') \
240     pname = HvNAME(PL_curstash ? PL_curstash : PL_defstash); \
241     gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), TRUE, SVt_PVIO);\
242     GvMULTI_on(gv); \
243     if (!GvIO(gv)) \
244     GvIOp(gv) = newIO(); \
245     IoIFP(GvIOp(gv)) = PL_rsfp; \
246     set_clonex(PL_rsfp); \
247     /* Mark this internal pseudo-handle as clean */ \
248     IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; \
249     if (PL_preprocess) \
250     IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; \
251     else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) \
252     IoTYPE(GvIOp(gv)) = IoTYPE_STD; \
253     else \
254     IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; \
255     Safefree(bstate->bs_obj_list); \
256     return 1; \
257     } STMT_END
258    
259     /* stolen from op.c */
260     #define BSET_load_glob(foo, gv) \
261     STMT_START { \
262     GV *glob_gv; \
263     ENTER; \
264     Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, \
265     newSVpvn("File::Glob", 10), Nullsv, Nullsv, Nullsv); \
266     glob_gv = gv_fetchpv("File::Glob::csh_glob", FALSE, SVt_PVCV); \
267     GvCV(gv) = GvCV(glob_gv); \
268     SvREFCNT_inc((SV*)GvCV(gv)); \
269     GvIMPORTED_CV_on(gv); \
270     LEAVE; \
271     } STMT_END
272    
273     /*
274     * Kludge special-case workaround for OP_MAPSTART
275     * which needs the ppaddr for OP_GREPSTART. Blech.
276     */
277     #define BSET_op_type(o, arg) STMT_START { \
278     o->op_type = arg; \
279     if (arg == OP_MAPSTART) \
280     arg = OP_GREPSTART; \
281     o->op_ppaddr = PL_ppaddr[arg]; \
282     } STMT_END
283     #define BSET_op_ppaddr(o, arg) Perl_croak(aTHX_ "op_ppaddr not yet implemented")
284     #define BSET_curpad(pad, arg) STMT_START { \
285     PL_comppad = (AV *)arg; \
286     pad = AvARRAY(arg); \
287     } STMT_END
288    
289     #ifdef USE_ITHREADS
290     #define BSET_cop_file(cop, arg) CopFILE_set(cop,arg)
291     #define BSET_cop_stashpv(cop, arg) CopSTASHPV_set(cop,arg)
292     #else
293     /* this works now that Sarathy's changed the CopFILE_set macro to do the SvREFCNT_inc()
294     -- BKS 6-2-2000 */
295     /* that really meant the actual CopFILEGV_set */
296     #define BSET_cop_filegv(cop, arg) CopFILEGV_set(cop,arg)
297     #define BSET_cop_stash(cop,arg) CopSTASH_set(cop,(HV*)arg)
298     #endif
299    
300     /* this is simply stolen from the code in newATTRSUB() */
301     #define BSET_push_begin(ary,cv) \
302     STMT_START { \
303     I32 oldscope = PL_scopestack_ix; \
304     ENTER; \
305     SAVECOPFILE(&PL_compiling); \
306     SAVECOPLINE(&PL_compiling); \
307     if (!PL_beginav) \
308     PL_beginav = newAV(); \
309     av_push(PL_beginav, (SV*)cv); \
310     GvCV(CvGV(cv)) = 0; /* cv has been hijacked */\
311     call_list(oldscope, PL_beginav); \
312     PL_curcop = &PL_compiling; \
313     PL_compiling.op_private = (U8)(PL_hints & HINT_PRIVATE_MASK);\
314     LEAVE; \
315     } STMT_END
316     #define BSET_push_init(ary,cv) \
317     STMT_START { \
318     av_unshift((PL_initav ? PL_initav : \
319     (PL_initav = newAV(), PL_initav)), 1); \
320     av_store(PL_initav, 0, cv); \
321     } STMT_END
322     #define BSET_push_end(ary,cv) \
323     STMT_START { \
324     av_unshift((PL_endav ? PL_endav : \
325     (PL_endav = newAV(), PL_endav)), 1); \
326     av_store(PL_endav, 0, cv); \
327     } STMT_END
328     #define BSET_OBJ_STORE(obj, ix) \
329     ((I32)ix > bstate->bs_obj_list_fill ? \
330     bset_obj_store(aTHX_ bstate, obj, (I32)ix) : \
331     (bstate->bs_obj_list[ix] = obj), \
332     bstate->bs_ix = ix+1)
333     #define BSET_OBJ_STOREX(obj) \
334     (bstate->bs_ix > bstate->bs_obj_list_fill ? \
335     bset_obj_store(aTHX_ bstate, obj, bstate->bs_ix) : \
336     (bstate->bs_obj_list[bstate->bs_ix] = obj), \
337     bstate->bs_ix++)
338    
339     #define BSET_signal(cv, name) \
340     mg_set(*hv_store(GvHV(gv_fetchpv("SIG", TRUE, SVt_PVHV)), \
341     name, strlen(name), cv, 0))
342    
343     /* NOTE: the bytecode header only sanity-checks the bytecode. If a script cares about
344     * what version of Perl it's being called under, it should do a 'use 5.006_001' or
345     * equivalent. However, since the header includes checks requiring an exact match in
346     * ByteLoader versions (we can't guarantee forward compatibility), you don't
347     * need to specify one:
348     * use ByteLoader;
349     * is all you need.
350     * -- BKS, June 2000
351     */
352    
353     #define HEADER_FAIL(f) \
354     Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f)
355     #define HEADER_FAIL1(f, arg1) \
356     Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1)
357     #define HEADER_FAIL2(f, arg1, arg2) \
358     Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1, arg2)
359    
360     #define BYTECODE_HEADER_CHECK \
361     STMT_START { \
362     U32 sz = 0; \
363     strconst str; \
364     \
365     BGET_U32(sz); /* Magic: 'PLBC' */ \
366     if (sz != 0x43424c50) { \
367     HEADER_FAIL1("bad magic (want 0x43424c50, got %#x)", (int)sz); \
368     } \
369     BGET_strconst(str); /* archname */ \
370     if (strNE(str, ARCHNAME)) { \
371     HEADER_FAIL2("wrong architecture (want %s, you have %s)",str,ARCHNAME); \
372     } \
373     BGET_strconst(str); /* ByteLoader version */ \
374     if (strNE(str, VERSION)) { \
375     HEADER_FAIL2("mismatched ByteLoader versions (want %s, you have %s)", \
376     str, VERSION); \
377     } \
378     BGET_U32(sz); /* ivsize */ \
379     if (sz != IVSIZE) { \
380     HEADER_FAIL("different IVSIZE"); \
381     } \
382     BGET_U32(sz); /* ptrsize */ \
383     if (sz != PTRSIZE) { \
384     HEADER_FAIL("different PTRSIZE"); \
385     } \
386     } STMT_END