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Put back the cygwin32 Configure fix of 3582 undone by 3597.
[perl5.git] / ext / ByteLoader / bytecode.h
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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 IV IV64;
9
10#define BGET_FREAD(argp, len, nelem) \
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11 bs.pfread((char*)(argp),(len),(nelem),bs.data)
12#define BGET_FGETC() bs.pfgetc(bs.data)
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13
14#define BGET_U32(arg) \
15 BGET_FREAD(&arg, sizeof(U32), 1); arg = PerlSock_ntohl((U32)arg)
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16#define BGET_I32(arg) \
17 BGET_FREAD(&arg, sizeof(I32), 1); arg = (I32)PerlSock_ntohl((U32)arg)
18#define BGET_U16(arg) \
19 BGET_FREAD(&arg, sizeof(U16), 1); arg = PerlSock_ntohs((U16)arg)
20#define BGET_U8(arg) arg = BGET_FGETC()
21
22#define BGET_PV(arg) STMT_START { \
23 BGET_U32(arg); \
24 if (arg) \
4f63d024 25 bs.pfreadpv(arg, bs.data, &bytecode_pv); \
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26 else { \
27 bytecode_pv.xpv_pv = 0; \
28 bytecode_pv.xpv_len = 0; \
29 bytecode_pv.xpv_cur = 0; \
30 } \
31 } STMT_END
32
33#define BGET_comment_t(arg) \
34 do { arg = BGET_FGETC(); } while (arg != '\n' && arg != EOF)
35
36/*
37 * In the following, sizeof(IV)*4 is just a way of encoding 32 on 64-bit-IV
38 * machines such that 32-bit machine compilers don't whine about the shift
39 * count being too high even though the code is never reached there.
40 */
41#define BGET_IV64(arg) STMT_START { \
42 U32 hi, lo; \
43 BGET_U32(hi); \
44 BGET_U32(lo); \
45 if (sizeof(IV) == 8) \
46 arg = (IV) (hi << (sizeof(IV)*4) | lo); \
47 else if (((I32)hi == -1 && (I32)lo < 0) \
48 || ((I32)hi == 0 && (I32)lo >= 0)) { \
49 arg = (I32)lo; \
50 } \
51 else { \
52 bytecode_iv_overflows++; \
53 arg = 0; \
54 } \
55 } STMT_END
56
57#define BGET_op_tr_array(arg) do { \
58 unsigned short *ary; \
59 int i; \
60 New(666, ary, 256, unsigned short); \
61 BGET_FREAD(ary, 256, 2); \
62 for (i = 0; i < 256; i++) \
63 ary[i] = PerlSock_ntohs(ary[i]); \
64 arg = (char *) ary; \
65 } while (0)
66
67#define BGET_pvcontents(arg) arg = bytecode_pv.xpv_pv
68#define BGET_strconst(arg) STMT_START { \
69 for (arg = PL_tokenbuf; (*arg = BGET_FGETC()); arg++) /* nothing */; \
70 arg = PL_tokenbuf; \
71 } STMT_END
72
73#define BGET_double(arg) STMT_START { \
74 char *str; \
75 BGET_strconst(str); \
76 arg = atof(str); \
77 } STMT_END
78
79#define BGET_objindex(arg, type) STMT_START { \
80 U32 ix; \
81 BGET_U32(ix); \
82 arg = (type)bytecode_obj_list[ix]; \
83 } STMT_END
84#define BGET_svindex(arg) BGET_objindex(arg, svindex)
85#define BGET_opindex(arg) BGET_objindex(arg, opindex)
86
87#define BSET_ldspecsv(sv, arg) sv = specialsv_list[arg]
88
89#define BSET_sv_refcnt_add(svrefcnt, arg) svrefcnt += arg
90#define BSET_gp_refcnt_add(gprefcnt, arg) gprefcnt += arg
91#define BSET_gp_share(sv, arg) STMT_START { \
92 gp_free((GV*)sv); \
93 GvGP(sv) = GvGP(arg); \
94 } STMT_END
95
96#define BSET_gv_fetchpv(sv, arg) sv = (SV*)gv_fetchpv(arg, TRUE, SVt_PV)
97#define BSET_gv_stashpv(sv, arg) sv = (SV*)gv_stashpv(arg, TRUE)
98#define BSET_sv_magic(sv, arg) sv_magic(sv, Nullsv, arg, 0, 0)
99#define BSET_mg_pv(mg, arg) mg->mg_ptr = arg; mg->mg_len = bytecode_pv.xpv_cur
100#define BSET_sv_upgrade(sv, arg) (void)SvUPGRADE(sv, arg)
101#define BSET_xpv(sv) do { \
102 SvPV_set(sv, bytecode_pv.xpv_pv); \
103 SvCUR_set(sv, bytecode_pv.xpv_cur); \
104 SvLEN_set(sv, bytecode_pv.xpv_len); \
105 } while (0)
106#define BSET_av_extend(sv, arg) av_extend((AV*)sv, arg)
107
108#define BSET_av_push(sv, arg) av_push((AV*)sv, arg)
109#define BSET_hv_store(sv, arg) \
110 hv_store((HV*)sv, bytecode_pv.xpv_pv, bytecode_pv.xpv_cur, arg, 0)
111#define BSET_pv_free(pv) Safefree(pv.xpv_pv)
112#define BSET_pregcomp(o, arg) \
113 ((PMOP*)o)->op_pmregexp = arg ? \
cea2e8a9 114 CALLREGCOMP(aTHX_ arg, arg + bytecode_pv.xpv_cur, ((PMOP*)o)) : 0
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115#define BSET_newsv(sv, arg) sv = NEWSV(666,0); SvUPGRADE(sv, arg)
116#define BSET_newop(o, arg) o = (OP*)safemalloc(optype_size[arg])
117#define BSET_newopn(o, arg) STMT_START { \
118 OP *oldop = o; \
119 BSET_newop(o, arg); \
120 oldop->op_next = o; \
121 } STMT_END
122
123#define BSET_ret(foo) return
124
125/*
126 * Kludge special-case workaround for OP_MAPSTART
127 * which needs the ppaddr for OP_GREPSTART. Blech.
128 */
129#define BSET_op_type(o, arg) STMT_START { \
130 o->op_type = arg; \
131 if (arg == OP_MAPSTART) \
132 arg = OP_GREPSTART; \
133 o->op_ppaddr = PL_ppaddr[arg]; \
134 } STMT_END
cea2e8a9 135#define BSET_op_ppaddr(o, arg) Perl_croak(aTHX_ "op_ppaddr not yet implemented")
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136#define BSET_curpad(pad, arg) STMT_START { \
137 PL_comppad = (AV *)arg; \
138 pad = AvARRAY(arg); \
139 } STMT_END
140
141#define BSET_OBJ_STORE(obj, ix) \
142 (I32)ix > bytecode_obj_list_fill ? \
0cb96387 143 bset_obj_store(aTHXo_ obj, (I32)ix) : (bytecode_obj_list[ix] = obj)