| 1 | /* run.c |
| 2 | * |
| 3 | * Copyright (c) 1991-1997, Larry Wall |
| 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 | |
| 10 | #include "EXTERN.h" |
| 11 | #include "perl.h" |
| 12 | |
| 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 | |
| 19 | #ifdef PERL_OBJECT |
| 20 | #define CALLOP this->*op |
| 21 | #else |
| 22 | #define CALLOP *op |
| 23 | #endif |
| 24 | |
| 25 | int |
| 26 | runops_standard(void) |
| 27 | { |
| 28 | dTHR; |
| 29 | |
| 30 | while ( op = (CALLOP->op_ppaddr)(ARGS) ) ; |
| 31 | |
| 32 | TAINT_NOT; |
| 33 | return 0; |
| 34 | } |
| 35 | |
| 36 | #ifdef DEBUGGING |
| 37 | |
| 38 | dEXT char **watchaddr = 0; |
| 39 | dEXT char *watchok; |
| 40 | |
| 41 | #ifndef PERL_OBJECT |
| 42 | static void debprof _((OP*o)); |
| 43 | #endif |
| 44 | |
| 45 | #endif /* DEBUGGING */ |
| 46 | |
| 47 | int |
| 48 | runops_debug(void) |
| 49 | { |
| 50 | #ifdef DEBUGGING |
| 51 | dTHR; |
| 52 | if (!op) { |
| 53 | warn("NULL OP IN RUN"); |
| 54 | return 0; |
| 55 | } |
| 56 | |
| 57 | do { |
| 58 | if (debug) { |
| 59 | if (watchaddr != 0 && *watchaddr != watchok) |
| 60 | PerlIO_printf(Perl_debug_log, "WARNING: %lx changed from %lx to %lx\n", |
| 61 | (long)watchaddr, (long)watchok, (long)*watchaddr); |
| 62 | DEBUG_s(debstack()); |
| 63 | DEBUG_t(debop(op)); |
| 64 | DEBUG_P(debprof(op)); |
| 65 | } |
| 66 | } while ( op = (CALLOP->op_ppaddr)(ARGS) ); |
| 67 | |
| 68 | TAINT_NOT; |
| 69 | return 0; |
| 70 | #else |
| 71 | return runops_standard(); |
| 72 | #endif /* DEBUGGING */ |
| 73 | } |
| 74 | |
| 75 | I32 |
| 76 | debop(OP *o) |
| 77 | { |
| 78 | #ifdef DEBUGGING |
| 79 | SV *sv; |
| 80 | deb("%s", op_name[o->op_type]); |
| 81 | switch (o->op_type) { |
| 82 | case OP_CONST: |
| 83 | PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo->op_sv)); |
| 84 | break; |
| 85 | case OP_GVSV: |
| 86 | case OP_GV: |
| 87 | if (cGVOPo->op_gv) { |
| 88 | sv = NEWSV(0,0); |
| 89 | gv_fullname3(sv, cGVOPo->op_gv, Nullch); |
| 90 | PerlIO_printf(Perl_debug_log, "(%s)", SvPV(sv, na)); |
| 91 | SvREFCNT_dec(sv); |
| 92 | } |
| 93 | else |
| 94 | PerlIO_printf(Perl_debug_log, "(NULL)"); |
| 95 | break; |
| 96 | default: |
| 97 | break; |
| 98 | } |
| 99 | PerlIO_printf(Perl_debug_log, "\n"); |
| 100 | #endif /* DEBUGGING */ |
| 101 | return 0; |
| 102 | } |
| 103 | |
| 104 | void |
| 105 | watch(char **addr) |
| 106 | { |
| 107 | #ifdef DEBUGGING |
| 108 | watchaddr = addr; |
| 109 | watchok = *addr; |
| 110 | PerlIO_printf(Perl_debug_log, "WATCHING, %lx is currently %lx\n", |
| 111 | (long)watchaddr, (long)watchok); |
| 112 | #endif /* DEBUGGING */ |
| 113 | } |
| 114 | |
| 115 | STATIC void |
| 116 | debprof(OP *o) |
| 117 | { |
| 118 | #ifdef DEBUGGING |
| 119 | if (!profiledata) |
| 120 | Newz(000, profiledata, MAXO, U32); |
| 121 | ++profiledata[o->op_type]; |
| 122 | #endif /* DEBUGGING */ |
| 123 | } |
| 124 | |
| 125 | void |
| 126 | debprofdump(void) |
| 127 | { |
| 128 | #ifdef DEBUGGING |
| 129 | unsigned i; |
| 130 | if (!profiledata) |
| 131 | return; |
| 132 | for (i = 0; i < MAXO; i++) { |
| 133 | if (profiledata[i]) |
| 134 | PerlIO_printf(Perl_debug_log, |
| 135 | "%5lu %s\n", (unsigned long)profiledata[i], |
| 136 | op_name[i]); |
| 137 | } |
| 138 | #endif /* DEBUGGING */ |
| 139 | } |