bytecode.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
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 char *pvindex;
#define BGET_FREAD(argp, len, nelem) \
bl_read(bstate->bs_fdata,(char*)(argp),(len),(nelem))
#define BGET_FGETC() bl_getc(bstate->bs_fdata)
/* all this should be made endianness-agnostic */
#define BGET_U8(arg) arg = BGET_FGETC()
#define BGET_U16(arg) \
BGET_FREAD(&arg, sizeof(U16), 1)
#define BGET_U32(arg) \
BGET_FREAD(&arg, sizeof(U32), 1)
#define BGET_UV(arg) \
BGET_FREAD(&arg, sizeof(UV), 1)
#define BGET_PADOFFSET(arg) \
BGET_FREAD(&arg, sizeof(PADOFFSET), 1)
#define BGET_long(arg) \
BGET_FREAD(&arg, sizeof(long), 1)
#define BGET_I32(arg) BGET_U32(arg)
#define BGET_IV(arg) BGET_UV(arg)
#define BGET_PV(arg) STMT_START { \
BGET_U32(arg); \
if (arg) { \
New(666, bstate->bs_pv.xpv_pv, arg, char); \
bl_read(bstate->bs_fdata, bstate->bs_pv.xpv_pv, arg, 1); \
bstate->bs_pv.xpv_len = arg; \
bstate->bs_pv.xpv_cur = arg - 1; \
} else { \
bstate->bs_pv.xpv_pv = 0; \
bstate->bs_pv.xpv_len = 0; \
bstate->bs_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
#define BGET_op_tr_array(arg) do { \
unsigned short *ary, len; \
BGET_U16(len); \
New(666, ary, len, unsigned short); \
BGET_FREAD(ary, sizeof(unsigned short), len); \
arg = (char *) ary; \
} while (0)
#define BGET_pvcontents(arg) arg = bstate->bs_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 { \
BGET_U32(ix); \
arg = (type)bstate->bs_obj_list[ix]; \
} STMT_END
#define BGET_svindex(arg) BGET_objindex(arg, svindex)
#define BGET_opindex(arg) BGET_objindex(arg, opindex)
#define BGET_pvindex(arg) STMT_START { \
BGET_objindex(arg, pvindex); \
arg = arg ? savepv(arg) : arg; \
} STMT_END
#define BSET_ldspecsv(sv, arg) sv = specialsv_list[arg]
#define BSET_ldspecsvx(sv, arg) STMT_START { \
BSET_ldspecsv(sv, arg); \
BSET_OBJ_STOREX(sv); \
} STMT_END
#define BSET_stpv(pv, arg) STMT_START { \
BSET_OBJ_STORE(pv, arg); \
SAVEFREEPV(pv); \
} STMT_END
#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_fetchpvx(sv, arg) STMT_START { \
BSET_gv_fetchpv(sv, arg); \
BSET_OBJ_STOREX(sv); \
} STMT_END
#define BSET_gv_stashpv(sv, arg) sv = (SV*)gv_stashpv(arg, TRUE)
#define BSET_gv_stashpvx(sv, arg) STMT_START { \
BSET_gv_stashpv(sv, arg); \
BSET_OBJ_STOREX(sv); \
} STMT_END
#define BSET_sv_magic(sv, arg) sv_magic(sv, Nullsv, arg, 0, 0)
#define BSET_mg_name(mg, arg) mg->mg_ptr = arg; mg->mg_len = bstate->bs_pv.xpv_cur
#define BSET_mg_namex(mg, arg) \
(mg->mg_ptr = (char*)SvREFCNT_inc((SV*)arg), \
mg->mg_len = HEf_SVKEY)
#define BSET_sv_upgrade(sv, arg) (void)SvUPGRADE(sv, arg)
#define BSET_xpv(sv) do { \
SvPV_set(sv, bstate->bs_pv.xpv_pv); \
SvCUR_set(sv, bstate->bs_pv.xpv_cur); \
SvLEN_set(sv, bstate->bs_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_av_pushx(sv, arg) (AvARRAY(sv)[++AvFILLp(sv)] = arg)
#define BSET_hv_store(sv, arg) \
hv_store((HV*)sv, bstate->bs_pv.xpv_pv, bstate->bs_pv.xpv_cur, arg, 0)
#define BSET_pv_free(pv) Safefree(pv.xpv_pv)
#ifdef USE_ITHREADS
/* copied after the code in newPMOP() */
#define BSET_pregcomp(o, arg) \
STMT_START { \
SV* repointer; \
REGEXP* rx = arg ? \
CALLREGCOMP(aTHX_ arg, arg + bstate->bs_pv.xpv_cur, cPMOPx(o)) : \
Null(REGEXP*); \
if(av_len((AV*) PL_regex_pad[0]) > -1) { \
repointer = av_pop((AV*)PL_regex_pad[0]); \
cPMOPx(o)->op_pmoffset = SvIV(repointer); \
SvREPADTMP_off(repointer); \
sv_setiv(repointer,PTR2IV(rx)); \
} else { \
repointer = newSViv(PTR2IV(rx)); \
av_push(PL_regex_padav,SvREFCNT_inc(repointer)); \
cPMOPx(o)->op_pmoffset = av_len(PL_regex_padav); \
PL_regex_pad = AvARRAY(PL_regex_padav); \
} \
} STMT_END
#else
#define BSET_pregcomp(o, arg) \
STMT_START { \
PM_SETRE(((PMOP*)o), (arg ? \
CALLREGCOMP(aTHX_ arg, arg + bstate->bs_pv.xpv_cur, cPMOPx(o)): \
Null(REGEXP*))); \
} STMT_END
#endif /* USE_THREADS */
#define BSET_newsv(sv, arg) \
switch(arg) { \
case SVt_PVAV: \
sv = (SV*)newAV(); \
break; \
case SVt_PVHV: \
sv = (SV*)newHV(); \
break; \
default: \
sv = NEWSV(0,0); \
SvUPGRADE(sv, (arg)); \
}
#define BSET_newsvx(sv, arg) STMT_START { \
BSET_newsv(sv, arg & SVTYPEMASK); \
SvFLAGS(sv) = arg; \
BSET_OBJ_STOREX(sv); \
} STMT_END
#define BSET_newop(o, arg) NewOpSz(666, o, arg)
#define BSET_newopx(o, arg) STMT_START { \
register int sz = arg & 0x7f; \
register OP* newop; \
BSET_newop(newop, sz); \
/* newop->op_next = o; XXX */ \
o = newop; \
arg >>=7; \
BSET_op_type(o, arg); \
BSET_OBJ_STOREX(o); \
} STMT_END
#define BSET_newopn(o, arg) STMT_START { \
OP *oldop = o; \
BSET_newop(o, arg); \
oldop->op_next = o; \
} STMT_END
#define BSET_ret(foo) STMT_START { \
Safefree(bstate->bs_obj_list); \
return 0; \
} STMT_END
#define BSET_op_pmstashpv(op, arg) PmopSTASHPV_set(op, arg)
/*
* stolen from toke.c: better if that was a function.
* in toke.c there are also #ifdefs for dosish systems and i/o layers
*/
#if defined(HAS_FCNTL) && defined(F_SETFD)
#define set_clonex(fp) \
STMT_START { \
int fd = PerlIO_fileno(fp); \
fcntl(fd,F_SETFD,fd >= 3); \
} STMT_END
#else
#define set_clonex(fp)
#endif
#define BSET_data(dummy,arg) \
STMT_START { \
GV *gv; \
char *pname = "main"; \
if (arg == 'D') \
pname = HvNAME(PL_curstash ? PL_curstash : PL_defstash); \
gv = gv_fetchpv(Perl_form(aTHX_ "%s::DATA", pname), TRUE, SVt_PVIO);\
GvMULTI_on(gv); \
if (!GvIO(gv)) \
GvIOp(gv) = newIO(); \
IoIFP(GvIOp(gv)) = PL_rsfp; \
set_clonex(PL_rsfp); \
/* Mark this internal pseudo-handle as clean */ \
IoFLAGS(GvIOp(gv)) |= IOf_UNTAINT; \
if (PL_preprocess) \
IoTYPE(GvIOp(gv)) = IoTYPE_PIPE; \
else if ((PerlIO*)PL_rsfp == PerlIO_stdin()) \
IoTYPE(GvIOp(gv)) = IoTYPE_STD; \
else \
IoTYPE(GvIOp(gv)) = IoTYPE_RDONLY; \
Safefree(bstate->bs_obj_list); \
return 1; \
} STMT_END
/* stolen from op.c */
#define BSET_load_glob(foo, gv) \
STMT_START { \
GV *glob_gv; \
ENTER; \
Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, \
newSVpvn("File::Glob", 10), Nullsv, Nullsv, Nullsv); \
glob_gv = gv_fetchpv("File::Glob::csh_glob", FALSE, SVt_PVCV); \
GvCV(gv) = GvCV(glob_gv); \
SvREFCNT_inc((SV*)GvCV(gv)); \
GvIMPORTED_CV_on(gv); \
LEAVE; \
} STMT_END
/*
* 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
#ifdef USE_ITHREADS
#define BSET_cop_file(cop, arg) CopFILE_set(cop,arg)
#define BSET_cop_stashpv(cop, arg) CopSTASHPV_set(cop,arg)
#else
/* this works now that Sarathy's changed the CopFILE_set macro to do the SvREFCNT_inc()
-- BKS 6-2-2000 */
/* that really meant the actual CopFILEGV_set */
#define BSET_cop_filegv(cop, arg) CopFILEGV_set(cop,arg)
#define BSET_cop_stash(cop,arg) CopSTASH_set(cop,(HV*)arg)
#endif
/* this is simply stolen from the code in newATTRSUB() */
#define BSET_push_begin(ary,cv) \
STMT_START { \
I32 oldscope = PL_scopestack_ix; \
ENTER; \
SAVECOPFILE(&PL_compiling); \
SAVECOPLINE(&PL_compiling); \
if (!PL_beginav) \
PL_beginav = newAV(); \
av_push(PL_beginav, (SV*)cv); \
GvCV(CvGV(cv)) = 0; /* cv has been hijacked */\
call_list(oldscope, PL_beginav); \
PL_curcop = &PL_compiling; \
PL_compiling.op_private = (U8)(PL_hints & HINT_PRIVATE_MASK);\
LEAVE; \
} STMT_END
#define BSET_push_init(ary,cv) \
STMT_START { \
av_unshift((PL_initav ? PL_initav : \
(PL_initav = newAV(), PL_initav)), 1); \
av_store(PL_initav, 0, cv); \
} STMT_END
#define BSET_push_end(ary,cv) \
STMT_START { \
av_unshift((PL_endav ? PL_endav : \
(PL_endav = newAV(), PL_endav)), 1); \
av_store(PL_endav, 0, cv); \
} STMT_END
#define BSET_OBJ_STORE(obj, ix) \
((I32)ix > bstate->bs_obj_list_fill ? \
bset_obj_store(aTHX_ bstate, obj, (I32)ix) : \
(bstate->bs_obj_list[ix] = obj), \
bstate->bs_ix = ix+1)
#define BSET_OBJ_STOREX(obj) \
(bstate->bs_ix > bstate->bs_obj_list_fill ? \
bset_obj_store(aTHX_ bstate, obj, bstate->bs_ix) : \
(bstate->bs_obj_list[bstate->bs_ix] = obj), \
bstate->bs_ix++)
#define BSET_signal(cv, name) \
mg_set(*hv_store(GvHV(gv_fetchpv("SIG", TRUE, SVt_PVHV)), \
name, strlen(name), cv, 0))
/* NOTE: the bytecode header only sanity-checks the bytecode. If a script cares about
* what version of Perl it's being called under, it should do a 'use 5.006_001' or
* equivalent. However, since the header includes checks requiring an exact match in
* ByteLoader versions (we can't guarantee forward compatibility), you don't
* need to specify one:
* use ByteLoader;
* is all you need.
* -- BKS, June 2000
*/
#define HEADER_FAIL(f) \
Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f)
#define HEADER_FAIL1(f, arg1) \
Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1)
#define HEADER_FAIL2(f, arg1, arg2) \
Perl_croak(aTHX_ "Invalid bytecode for this architecture: " f, arg1, arg2)
#define BYTECODE_HEADER_CHECK \
STMT_START { \
U32 sz = 0; \
strconst str; \
\
BGET_U32(sz); /* Magic: 'PLBC' */ \
if (sz != 0x43424c50) { \
HEADER_FAIL1("bad magic (want 0x43424c50, got %#x)", (int)sz); \
} \
BGET_strconst(str); /* archname */ \
if (strNE(str, ARCHNAME)) { \
HEADER_FAIL2("wrong architecture (want %s, you have %s)",str,ARCHNAME); \
} \
BGET_strconst(str); /* ByteLoader version */ \
if (strNE(str, VERSION)) { \
HEADER_FAIL2("mismatched ByteLoader versions (want %s, you have %s)", \
str, VERSION); \
} \
BGET_U32(sz); /* ivsize */ \
if (sz != IVSIZE) { \
HEADER_FAIL("different IVSIZE"); \
} \
BGET_U32(sz); /* ptrsize */ \
if (sz != PTRSIZE) { \
HEADER_FAIL("different PTRSIZE"); \
} \
} STMT_END