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1 | /* run.c |
2 | * |
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3 | * Copyright (c) 1991-2001, Larry Wall |
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4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
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10 | #include "EXTERN.h" |
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11 | #define PERL_IN_RUN_C |
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12 | #include "perl.h" |
13 | |
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14 | /* |
15 | * "Away now, Shadowfax! Run, greatheart, run as you have never run before! |
16 | * Now we are come to the lands where you were foaled, and every stone you |
17 | * know. Run now! Hope is in speed!" --Gandalf |
18 | */ |
19 | |
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20 | int |
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21 | Perl_runops_standard(pTHX) |
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22 | { |
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23 | while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX))) { |
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24 | PERL_ASYNC_CHECK(); |
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25 | } |
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26 | |
27 | TAINT_NOT; |
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28 | return 0; |
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29 | } |
30 | |
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31 | int |
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32 | Perl_runops_debug(pTHX) |
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33 | { |
34 | #ifdef DEBUGGING |
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35 | if (!PL_op) { |
36 | if (ckWARN_d(WARN_DEBUGGING)) |
37 | Perl_warner(aTHX_ WARN_DEBUGGING, "NULL OP IN RUN"); |
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38 | return 0; |
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39 | } |
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40 | |
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41 | do { |
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42 | PERL_ASYNC_CHECK(); |
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43 | if (PL_debug) { |
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44 | if (PL_watchaddr != 0 && *PL_watchaddr != PL_watchok) |
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45 | PerlIO_printf(Perl_debug_log, |
46 | "WARNING: %"UVxf" changed from %"UVxf" to %"UVxf"\n", |
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47 | PTR2UV(PL_watchaddr), PTR2UV(PL_watchok), |
48 | PTR2UV(*PL_watchaddr)); |
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49 | DEBUG_s(debstack()); |
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50 | DEBUG_t(debop(PL_op)); |
51 | DEBUG_P(debprof(PL_op)); |
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52 | } |
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53 | } while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX))); |
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54 | |
55 | TAINT_NOT; |
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56 | return 0; |
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57 | #else |
58 | return runops_standard(); |
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59 | #endif /* DEBUGGING */ |
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60 | } |
61 | |
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62 | I32 |
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63 | Perl_debop(pTHX_ OP *o) |
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64 | { |
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65 | #ifdef DEBUGGING |
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66 | SV *sv; |
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67 | STRLEN n_a; |
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68 | Perl_deb(aTHX_ "%s", PL_op_name[o->op_type]); |
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69 | switch (o->op_type) { |
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70 | case OP_CONST: |
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71 | PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo_sv)); |
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72 | break; |
73 | case OP_GVSV: |
74 | case OP_GV: |
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75 | if (cGVOPo_gv) { |
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76 | sv = NEWSV(0,0); |
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77 | gv_fullname3(sv, cGVOPo_gv, Nullch); |
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78 | PerlIO_printf(Perl_debug_log, "(%s)", SvPV(sv, n_a)); |
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79 | SvREFCNT_dec(sv); |
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80 | } |
81 | else |
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82 | PerlIO_printf(Perl_debug_log, "(NULL)"); |
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83 | break; |
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84 | default: |
85 | break; |
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86 | } |
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87 | PerlIO_printf(Perl_debug_log, "\n"); |
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88 | #endif /* DEBUGGING */ |
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89 | return 0; |
90 | } |
91 | |
92 | void |
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93 | Perl_watch(pTHX_ char **addr) |
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94 | { |
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95 | #ifdef DEBUGGING |
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96 | PL_watchaddr = addr; |
97 | PL_watchok = *addr; |
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98 | PerlIO_printf(Perl_debug_log, "WATCHING, %"UVxf" is currently %"UVxf"\n", |
99 | PTR2UV(PL_watchaddr), PTR2UV(PL_watchok)); |
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100 | #endif /* DEBUGGING */ |
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101 | } |
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102 | |
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103 | STATIC void |
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104 | S_debprof(pTHX_ OP *o) |
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105 | { |
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106 | #ifdef DEBUGGING |
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107 | if (!PL_profiledata) |
108 | Newz(000, PL_profiledata, MAXO, U32); |
109 | ++PL_profiledata[o->op_type]; |
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110 | #endif /* DEBUGGING */ |
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111 | } |
112 | |
113 | void |
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114 | Perl_debprofdump(pTHX) |
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115 | { |
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116 | #ifdef DEBUGGING |
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117 | unsigned i; |
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118 | if (!PL_profiledata) |
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119 | return; |
120 | for (i = 0; i < MAXO; i++) { |
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121 | if (PL_profiledata[i]) |
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122 | PerlIO_printf(Perl_debug_log, |
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123 | "%5lu %s\n", (unsigned long)PL_profiledata[i], |
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124 | PL_op_name[i]); |
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125 | } |
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126 | #endif /* DEBUGGING */ |
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127 | } |