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