| | 1 | /* deb.c |
| | 2 | * |
| | 3 | * Copyright (c) 1991-2001, 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 | /* |
| | 11 | * "Didst thou think that the eyes of the White Tower were blind? Nay, I |
| | 12 | * have seen more than thou knowest, Gray Fool." --Denethor |
| | 13 | */ |
| | 14 | |
| | 15 | #include "EXTERN.h" |
| | 16 | #define PERL_IN_DEB_C |
| | 17 | #include "perl.h" |
| | 18 | |
| | 19 | #if defined(PERL_IMPLICIT_CONTEXT) |
| | 20 | void |
| | 21 | Perl_deb_nocontext(const char *pat, ...) |
| | 22 | { |
| | 23 | #ifdef DEBUGGING |
| | 24 | dTHX; |
| | 25 | va_list args; |
| | 26 | va_start(args, pat); |
| | 27 | vdeb(pat, &args); |
| | 28 | va_end(args); |
| | 29 | #endif /* DEBUGGING */ |
| | 30 | } |
| | 31 | #endif |
| | 32 | |
| | 33 | void |
| | 34 | Perl_deb(pTHX_ const char *pat, ...) |
| | 35 | { |
| | 36 | #ifdef DEBUGGING |
| | 37 | va_list args; |
| | 38 | va_start(args, pat); |
| | 39 | vdeb(pat, &args); |
| | 40 | va_end(args); |
| | 41 | #endif /* DEBUGGING */ |
| | 42 | } |
| | 43 | |
| | 44 | void |
| | 45 | Perl_vdeb(pTHX_ const char *pat, va_list *args) |
| | 46 | { |
| | 47 | #ifdef DEBUGGING |
| | 48 | char* file = CopFILE(PL_curcop); |
| | 49 | |
| | 50 | #ifdef USE_5005THREADS |
| | 51 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" (%s:%ld)\t", |
| | 52 | PTR2UV(thr), |
| | 53 | (file ? file : "<free>"), |
| | 54 | (long)CopLINE(PL_curcop)); |
| | 55 | #else |
| | 56 | PerlIO_printf(Perl_debug_log, "(%s:%ld)\t", (file ? file : "<free>"), |
| | 57 | (long)CopLINE(PL_curcop)); |
| | 58 | #endif /* USE_5005THREADS */ |
| | 59 | (void) PerlIO_vprintf(Perl_debug_log, pat, *args); |
| | 60 | #endif /* DEBUGGING */ |
| | 61 | } |
| | 62 | |
| | 63 | I32 |
| | 64 | Perl_debstackptrs(pTHX) |
| | 65 | { |
| | 66 | #ifdef DEBUGGING |
| | 67 | PerlIO_printf(Perl_debug_log, |
| | 68 | "%8"UVxf" %8"UVxf" %8"IVdf" %8"IVdf" %8"IVdf"\n", |
| | 69 | PTR2UV(PL_curstack), PTR2UV(PL_stack_base), |
| | 70 | (IV)*PL_markstack_ptr, (IV)(PL_stack_sp-PL_stack_base), |
| | 71 | (IV)(PL_stack_max-PL_stack_base)); |
| | 72 | PerlIO_printf(Perl_debug_log, |
| | 73 | "%8"UVxf" %8"UVxf" %8"UVuf" %8"UVuf" %8"UVuf"\n", |
| | 74 | PTR2UV(PL_mainstack), PTR2UV(AvARRAY(PL_curstack)), |
| | 75 | PTR2UV(PL_mainstack), PTR2UV(AvFILLp(PL_curstack)), |
| | 76 | PTR2UV(AvMAX(PL_curstack))); |
| | 77 | #endif /* DEBUGGING */ |
| | 78 | return 0; |
| | 79 | } |
| | 80 | |
| | 81 | I32 |
| | 82 | Perl_debstack(pTHX) |
| | 83 | { |
| | 84 | #ifdef DEBUGGING |
| | 85 | I32 top = PL_stack_sp - PL_stack_base; |
| | 86 | register I32 i = top - 30; |
| | 87 | I32 *markscan = PL_markstack + PL_curstackinfo->si_markoff; |
| | 88 | |
| | 89 | if (i < 0) |
| | 90 | i = 0; |
| | 91 | |
| | 92 | while (++markscan <= PL_markstack_ptr) |
| | 93 | if (*markscan >= i) |
| | 94 | break; |
| | 95 | |
| | 96 | #ifdef USE_5005THREADS |
| | 97 | PerlIO_printf(Perl_debug_log, |
| | 98 | i ? "0x%"UVxf" => ... " : "0x%lx => ", |
| | 99 | PTR2UV(thr)); |
| | 100 | #else |
| | 101 | PerlIO_printf(Perl_debug_log, i ? " => ... " : " => "); |
| | 102 | #endif /* USE_5005THREADS */ |
| | 103 | if (PL_stack_base[0] != &PL_sv_undef || PL_stack_sp < PL_stack_base) |
| | 104 | PerlIO_printf(Perl_debug_log, " [STACK UNDERFLOW!!!]\n"); |
| | 105 | do { |
| | 106 | ++i; |
| | 107 | if (markscan <= PL_markstack_ptr && *markscan < i) { |
| | 108 | do { |
| | 109 | ++markscan; |
| | 110 | PerlIO_putc(Perl_debug_log, '*'); |
| | 111 | } |
| | 112 | while (markscan <= PL_markstack_ptr && *markscan < i); |
| | 113 | PerlIO_printf(Perl_debug_log, " "); |
| | 114 | } |
| | 115 | if (i > top) |
| | 116 | break; |
| | 117 | PerlIO_printf(Perl_debug_log, "%-4s ", SvPEEK(PL_stack_base[i])); |
| | 118 | } |
| | 119 | while (1); |
| | 120 | PerlIO_printf(Perl_debug_log, "\n"); |
| | 121 | #endif /* DEBUGGING */ |
| | 122 | return 0; |
| | 123 | } |
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