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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 |
20 | #define CALLOP this->*op |
21 | #else |
22 | #define CALLOP *op |
23 | #endif |
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24 | |
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25 | int |
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26 | runops_standard(void) { |
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27 | dTHR; |
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28 | |
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29 | while ( op = (CALLOP->op_ppaddr)(ARGS) ) ; |
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30 | |
31 | TAINT_NOT; |
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32 | return 0; |
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33 | } |
34 | |
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35 | dEXT char **watchaddr = 0; |
36 | dEXT char *watchok; |
37 | |
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38 | #ifndef PERL_OBJECT |
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39 | static void debprof _((OP*o)); |
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40 | #endif |
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41 | |
42 | int |
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43 | runops_debug(void) |
44 | { |
45 | #ifdef DEBUGGING |
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46 | dTHR; |
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47 | if (!op) { |
48 | warn("NULL OP IN RUN"); |
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49 | return 0; |
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50 | } |
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51 | |
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52 | do { |
53 | if (debug) { |
54 | if (watchaddr != 0 && *watchaddr != watchok) |
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55 | PerlIO_printf(Perl_debug_log, "WARNING: %lx changed from %lx to %lx\n", |
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56 | (long)watchaddr, (long)watchok, (long)*watchaddr); |
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57 | DEBUG_s(debstack()); |
58 | DEBUG_t(debop(op)); |
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59 | DEBUG_P(debprof(op)); |
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60 | } |
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61 | } while ( op = (CALLOP->op_ppaddr)(ARGS) ); |
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62 | |
63 | TAINT_NOT; |
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64 | return 0; |
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65 | #else |
66 | return runops_standard(); |
67 | #endif /* DEBUGGING */ |
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68 | } |
69 | |
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70 | I32 |
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71 | debop(OP *o) |
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72 | { |
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73 | #ifdef DEBUGGING |
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74 | SV *sv; |
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75 | deb("%s", op_name[o->op_type]); |
76 | switch (o->op_type) { |
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77 | case OP_CONST: |
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78 | PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo->op_sv)); |
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79 | break; |
80 | case OP_GVSV: |
81 | case OP_GV: |
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82 | if (cGVOPo->op_gv) { |
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83 | sv = NEWSV(0,0); |
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84 | gv_fullname3(sv, cGVOPo->op_gv, Nullch); |
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85 | PerlIO_printf(Perl_debug_log, "(%s)", SvPV(sv, na)); |
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86 | SvREFCNT_dec(sv); |
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87 | } |
88 | else |
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89 | PerlIO_printf(Perl_debug_log, "(NULL)"); |
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90 | break; |
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91 | default: |
92 | break; |
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93 | } |
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94 | PerlIO_printf(Perl_debug_log, "\n"); |
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95 | #endif /* DEBUGGING */ |
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96 | return 0; |
97 | } |
98 | |
99 | void |
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100 | watch(char **addr) |
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101 | { |
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102 | #ifdef DEBUGGING |
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103 | watchaddr = addr; |
104 | watchok = *addr; |
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105 | PerlIO_printf(Perl_debug_log, "WATCHING, %lx is currently %lx\n", |
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106 | (long)watchaddr, (long)watchok); |
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107 | #endif /* DEBUGGING */ |
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108 | } |
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109 | |
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110 | STATIC void |
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111 | debprof(OP *o) |
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112 | { |
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113 | #ifdef DEBUGGING |
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114 | if (!profiledata) |
115 | New(000, profiledata, MAXO, U32); |
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116 | ++profiledata[o->op_type]; |
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117 | #endif /* DEBUGGING */ |
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118 | } |
119 | |
120 | void |
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121 | debprofdump(void) |
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122 | { |
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123 | #ifdef DEBUGGING |
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124 | unsigned i; |
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125 | if (!profiledata) |
126 | return; |
127 | for (i = 0; i < MAXO; i++) { |
128 | if (profiledata[i]) |
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129 | PerlIO_printf(Perl_debug_log, |
130 | "%u\t%lu\n", i, (unsigned long)profiledata[i]); |
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131 | } |
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132 | #endif /* DEBUGGING */ |
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133 | } |