view lwasm/debug.c @ 338:5d401d1eb3e9

Allow disabling debugging messages. Add test for LWASM_NODEBUG symbol to disable compiling the actual debug message handling code. Also, prevent building the debug message arguments if the debug level is not going to display the message anyway. This comes at the possible expense of larger code due to wrapping the debug_mesage() function in a macro that tests the debug level directly. This should prevent calling expensive things like building a dump of an expression when it is not required.
author William Astle <lost@l-w.ca>
date Tue, 05 Aug 2014 22:04:23 -0600
parents 3132b1742eca
children
line wrap: on
line source

/*
debug.c

Copyright © 2010 William Astle

This file is part of LWTOOLS.

LWTOOLS is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.

You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef LWASM_NODEBUG

#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <time.h>

#include "lwasm.h"
#include "instab.h"

/*

Various debug utilities

*/
void dump_state(asmstate_t *as)
{
	line_t *cl;
//	exportlist_t *ex;
//	struct symtabe *s;
//	importlist_t *im;
	struct line_expr_s *le;
	lwasm_error_t *e;
	
	debug_message(as, 100, "Lines:");
	
	for (cl = as -> line_head; cl; cl = cl -> next)
	{
		debug_message(as, 100, "%p INSN %d (%s) LEN %d DLEN %d PRAGMA %x", cl, cl -> insn, (cl -> insn >= 0) ? instab[cl -> insn].opcode : "<none>", cl -> len, cl -> dlen, cl -> pragmas);
		debug_message(as, 100, "    ADDR: %s", lw_expr_print(cl -> addr));
		debug_message(as, 100, "    DADDR: %s", lw_expr_print(cl -> daddr));
		debug_message(as, 100, "    PB: %02X; LINT: %X; LINT2: %X", cl -> pb, cl -> lint, cl -> lint2);
		for (le = cl -> exprs; le; le = le -> next)
		{
			debug_message(as, 100, "    EXPR %d: %s", le -> id, lw_expr_print(le -> expr));
		}
		if (cl -> outputl > 0)
		{
			int i;
			for (i = 0; i < cl -> outputl; i++)
			{
				debug_message(as, 100, "    OBYTE %02X: %02X", i, cl -> output[i]);
			}
		}
		for (e = cl -> err; e; e = e -> next)
		{
			debug_message(as, 100, "    ERR: %s", e -> mess);
		}
		for (e = cl -> warn; e; e = e -> next)
		{
			debug_message(as, 100, "    WARN: %s", e -> mess);
		}
	}
}

void real_debug_message(asmstate_t *as, int level, const char *fmt, ...)
{
	va_list args;

	if (as -> debug_level < level)
		return;

	if (as -> debug_file == NULL)
		as -> debug_file = stderr;

	va_start(args, fmt);
	
	fprintf(as -> debug_file, "DEBUG %03d (%ld): ", level, (long)time(NULL));
	vfprintf(as -> debug_file, fmt, args);
	fputc('\n', as -> debug_file);

	va_end(args);
}

#endif