/* deb.c
*
- * Copyright (c) 1991-2002, Larry Wall
+ * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+ * 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*/
/*
- * "Didst thou think that the eyes of the White Tower were blind? Nay, I
- * have seen more than thou knowest, Gray Fool." --Denethor
+ * 'Didst thou think that the eyes of the White Tower were blind? Nay,
+ * I have seen more than thou knowest, Grey Fool.' --Denethor
+ *
+ * [p.853 of _The Lord of the Rings_, V/vii: "The Pyre of Denethor"]
+ */
+
+/*
+ * This file contains various utilities for producing debugging output
+ * (mainly related to displaying the stack)
*/
#include "EXTERN.h"
#ifdef DEBUGGING
dTHX;
va_list args;
+ PERL_ARGS_ASSERT_DEB_NOCONTEXT;
va_start(args, pat);
vdeb(pat, &args);
va_end(args);
+#else
+ PERL_UNUSED_ARG(pat);
#endif /* DEBUGGING */
}
#endif
void
Perl_deb(pTHX_ const char *pat, ...)
{
-#ifdef DEBUGGING
va_list args;
+ PERL_ARGS_ASSERT_DEB;
va_start(args, pat);
+#ifdef DEBUGGING
vdeb(pat, &args);
- va_end(args);
+#else
+ PERL_UNUSED_CONTEXT;
#endif /* DEBUGGING */
+ va_end(args);
}
void
Perl_vdeb(pTHX_ const char *pat, va_list *args)
{
#ifdef DEBUGGING
- char* file = OutCopFILE(PL_curcop);
-
-#ifdef USE_5005THREADS
- PerlIO_printf(Perl_debug_log, "0x%"UVxf" (%s:%ld)\t",
- PTR2UV(thr),
- (file ? file : "<free>"),
- (long)CopLINE(PL_curcop));
-#else
- PerlIO_printf(Perl_debug_log, "(%s:%ld)\t", (file ? file : "<free>"),
- (long)CopLINE(PL_curcop));
-#endif /* USE_5005THREADS */
+ dVAR;
+ const char* const file = PL_curcop ? OutCopFILE(PL_curcop) : "<null>";
+ const char* const display_file = file ? file : "<free>";
+ const long line = PL_curcop ? (long)CopLINE(PL_curcop) : 0;
+
+ PERL_ARGS_ASSERT_VDEB;
+
+ if (DEBUG_v_TEST)
+ PerlIO_printf(Perl_debug_log, "(%ld:%s:%ld)\t",
+ (long)PerlProc_getpid(), display_file, line);
+ else
+ PerlIO_printf(Perl_debug_log, "(%s:%ld)\t", display_file, line);
(void) PerlIO_vprintf(Perl_debug_log, pat, *args);
+#else
+ PERL_UNUSED_CONTEXT;
+ PERL_UNUSED_ARG(pat);
+ PERL_UNUSED_ARG(args);
#endif /* DEBUGGING */
}
Perl_debstackptrs(pTHX)
{
#ifdef DEBUGGING
+ dVAR;
PerlIO_printf(Perl_debug_log,
"%8"UVxf" %8"UVxf" %8"IVdf" %8"IVdf" %8"IVdf"\n",
PTR2UV(PL_curstack), PTR2UV(PL_stack_base),
I32 mark_min, I32 mark_max)
{
#ifdef DEBUGGING
+ dVAR;
register I32 i = stack_max - 30;
- I32 *markscan = PL_markstack + mark_min;
+ const I32 *markscan = PL_markstack + mark_min;
+
+ PERL_ARGS_ASSERT_DEB_STACK_N;
+
if (i < stack_min)
i = stack_min;
}
while (1);
PerlIO_printf(Perl_debug_log, "\n");
+#else
+ PERL_UNUSED_CONTEXT;
+ PERL_UNUSED_ARG(stack_base);
+ PERL_UNUSED_ARG(stack_min);
+ PERL_UNUSED_ARG(stack_max);
+ PERL_UNUSED_ARG(mark_min);
+ PERL_UNUSED_ARG(mark_max);
#endif /* DEBUGGING */
}
Perl_debstack(pTHX)
{
#ifndef SKIP_DEBUGGING
+ dVAR;
if (CopSTASH_eq(PL_curcop, PL_debstash) && !DEBUG_J_TEST_)
return 0;
#ifdef DEBUGGING
-static char * si_names[] = {
+static const char * const si_names[] = {
"UNKNOWN",
"UNDEF",
"MAIN",
Perl_deb_stack_all(pTHX)
{
#ifdef DEBUGGING
- I32 ix, si_ix;
- PERL_SI *si;
- PERL_CONTEXT *cx;
+ dVAR;
+ I32 si_ix;
+ const PERL_SI *si;
/* rewind to start of chain */
si = PL_curstackinfo;
si_ix=0;
for (;;)
{
- char *si_name;
- int si_name_ix = si->si_type+1; /* -1 is a valid index */
- if (si_name_ix>= sizeof(si_names))
- si_name = "????";
- else
- si_name = si_names[si_name_ix];
+ const size_t si_name_ix = si->si_type+1; /* -1 is a valid index */
+ const char * const si_name = (si_name_ix >= sizeof(si_names)) ? "????" : si_names[si_name_ix];
+ I32 ix;
PerlIO_printf(Perl_debug_log, "STACK %"IVdf": %s\n",
(IV)si_ix, si_name);
for (ix=0; ix<=si->si_cxix; ix++) {
- cx = &(si->si_cxstack[ix]);
+ const PERL_CONTEXT * const cx = &(si->si_cxstack[ix]);
PerlIO_printf(Perl_debug_log,
" CX %"IVdf": %-6s => ",
- ix, PL_block_type[CxTYPE(cx)]
+ (IV)ix, PL_block_type[CxTYPE(cx)]
);
/* substitution contexts don't save stack pointers etc) */
if (CxTYPE(cx) == CXt_SUBST)
*/
I32 i, stack_min, stack_max, mark_min, mark_max;
- I32 ret_min, ret_max;
- PERL_CONTEXT *cx_n;
- PERL_SI *si_n;
-
- cx_n = Null(PERL_CONTEXT*);
+ const PERL_CONTEXT *cx_n = NULL;
+ const PERL_SI *si_n;
/* there's a separate stack per SI, so only search
* this one */
si_n = si;
i = ix;
- cx_n = Null(PERL_CONTEXT*);
+ cx_n = NULL;
for (;;) {
i++;
if (i > si_n->si_cxix) {
}
mark_min = cx->blk_oldmarksp;
- ret_min = cx->blk_oldretsp;
if (cx_n) {
mark_max = cx_n->blk_oldmarksp;
- ret_max = cx_n->blk_oldretsp;
}
else {
mark_max = PL_markstack_ptr - PL_markstack;
- ret_max = PL_retstack_ix;
}
deb_stack_n(AvARRAY(si->si_stack),
stack_min, stack_max, mark_min, mark_max);
- if (ret_max > ret_min) {
+ if (CxTYPE(cx) == CXt_EVAL || CxTYPE(cx) == CXt_SUB
+ || CxTYPE(cx) == CXt_FORMAT)
+ {
+ const OP * const retop = cx->blk_sub.retop;
+
PerlIO_printf(Perl_debug_log, " retop=%s\n",
- PL_retstack[ret_min]
- ? OP_NAME(PL_retstack[ret_min])
- : "(null)"
+ retop ? OP_NAME(retop) : "(null)"
);
}
-
}
} /* next context */
} /* next stackinfo */
PerlIO_printf(Perl_debug_log, "\n");
+#else
+ PERL_UNUSED_CONTEXT;
#endif /* DEBUGGING */
}
-
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */