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1 | /* run.c |
2 | * |
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3 | * Copyright (c) 1991-1997, 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" |
11 | #include "perl.h" |
12 | |
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13 | /* |
14 | * "Away now, Shadowfax! Run, greatheart, run as you have never run before! |
15 | * Now we are come to the lands where you were foaled, and every stone you |
16 | * know. Run now! Hope is in speed!" --Gandalf |
17 | */ |
18 | |
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19 | #ifdef PERL_OBJECT |
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20 | #define CALLOP this->*PL_op |
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21 | #else |
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22 | #define CALLOP *PL_op |
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23 | #endif |
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24 | |
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25 | int |
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26 | runops_standard(void) |
27 | { |
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28 | dTHR; |
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29 | |
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30 | while ( PL_op = (CALLOP->op_ppaddr)(ARGS) ) ; |
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31 | |
32 | TAINT_NOT; |
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33 | return 0; |
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34 | } |
35 | |
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36 | #ifdef DEBUGGING |
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37 | #ifndef PERL_OBJECT |
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38 | static void debprof _((OP*o)); |
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39 | #endif |
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40 | |
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41 | #endif /* DEBUGGING */ |
42 | |
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43 | int |
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44 | runops_debug(void) |
45 | { |
46 | #ifdef DEBUGGING |
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47 | dTHR; |
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48 | if (!PL_op) { |
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49 | warn("NULL OP IN RUN"); |
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50 | return 0; |
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51 | } |
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52 | |
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53 | do { |
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54 | if (PL_debug) { |
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55 | if (PL_watchaddr != 0 && *PL_watchaddr != PL_watchok) |
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56 | PerlIO_printf(Perl_debug_log, "WARNING: %lx changed from %lx to %lx\n", |
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57 | (long)PL_watchaddr, (long)PL_watchok, (long)*PL_watchaddr); |
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58 | DEBUG_s(debstack()); |
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59 | DEBUG_t(debop(PL_op)); |
60 | DEBUG_P(debprof(PL_op)); |
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61 | } |
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62 | } while ( PL_op = (CALLOP->op_ppaddr)(ARGS) ); |
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63 | |
64 | TAINT_NOT; |
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65 | return 0; |
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66 | #else |
67 | return runops_standard(); |
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68 | #endif /* DEBUGGING */ |
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69 | } |
70 | |
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71 | I32 |
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72 | debop(OP *o) |
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73 | { |
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74 | #ifdef DEBUGGING |
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75 | SV *sv; |
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76 | deb("%s", PL_op_name[o->op_type]); |
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77 | switch (o->op_type) { |
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78 | case OP_CONST: |
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79 | PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo->op_sv)); |
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80 | break; |
81 | case OP_GVSV: |
82 | case OP_GV: |
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83 | if (cGVOPo->op_gv) { |
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84 | sv = NEWSV(0,0); |
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85 | gv_fullname3(sv, cGVOPo->op_gv, Nullch); |
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86 | PerlIO_printf(Perl_debug_log, "(%s)", SvPV(sv, PL_na)); |
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87 | SvREFCNT_dec(sv); |
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88 | } |
89 | else |
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90 | PerlIO_printf(Perl_debug_log, "(NULL)"); |
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91 | break; |
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92 | default: |
93 | break; |
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94 | } |
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95 | PerlIO_printf(Perl_debug_log, "\n"); |
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96 | #endif /* DEBUGGING */ |
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97 | return 0; |
98 | } |
99 | |
100 | void |
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101 | watch(char **addr) |
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102 | { |
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103 | #ifdef DEBUGGING |
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104 | dTHR; |
105 | PL_watchaddr = addr; |
106 | PL_watchok = *addr; |
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107 | PerlIO_printf(Perl_debug_log, "WATCHING, %lx is currently %lx\n", |
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108 | (long)PL_watchaddr, (long)PL_watchok); |
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109 | #endif /* DEBUGGING */ |
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110 | } |
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111 | |
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112 | STATIC void |
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113 | debprof(OP *o) |
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114 | { |
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115 | #ifdef DEBUGGING |
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116 | if (!PL_profiledata) |
117 | Newz(000, PL_profiledata, MAXO, U32); |
118 | ++PL_profiledata[o->op_type]; |
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119 | #endif /* DEBUGGING */ |
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120 | } |
121 | |
122 | void |
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123 | debprofdump(void) |
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124 | { |
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125 | #ifdef DEBUGGING |
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126 | unsigned i; |
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127 | if (!PL_profiledata) |
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128 | return; |
129 | for (i = 0; i < MAXO; i++) { |
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130 | if (PL_profiledata[i]) |
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131 | PerlIO_printf(Perl_debug_log, |
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132 | "%5lu %s\n", (unsigned long)PL_profiledata[i], |
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133 | PL_op_name[i]); |
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134 | } |
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135 | #endif /* DEBUGGING */ |
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136 | } |