view lwlink/map.c @ 265:6f4c4d59666f

Make lwar use the "b" flag when opening files. Due to the dumbness on Windows systems related to text vs. binary file distinctions, one needs to add 'b' to fopen() calls when dealing with binary files.
author William Astle <lost@l-w.ca>
date Sun, 10 Feb 2013 19:22:24 -0700
parents d389adbcc4ab
children
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/*
map.c
Copyright © 2009 William Astle

This file is part of LWLINK.

LWLINK 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/>.


Output information about the linking process
*/

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <lw_alloc.h>

#include "lwlink.h"

struct symliste
{
	char *name;
	char *fn;
	int addr;
	int ext;
	struct symliste *next;
};

void display_map(void)
{
	FILE *of;
	int sn;
	int std = 0;
	struct symliste *slist = NULL;
	struct symliste *ce, *pe, *ne;
	symtab_t *sym;
	int i;
	symlist_t *se;
	
	if (!strcmp(map_file, "-"))
	{
		std = 1;
		of = stdout;
	}
	else
	{
		of = fopen(map_file, "w");
		if (!of)
		{
			fprintf(stderr, "Cannot open map file - using stdout\n");
			std = 1;
			of = stdout;
		}
	}

	// display section list
	for (sn = 0; sn < nsects; sn++)
	{
		fprintf(of, "Section: %s (%s) load at %04X, length %04X\n",
				sanitize_symbol((char*)(sectlist[sn].ptr -> name)),
				sectlist[sn].ptr -> file -> filename,
				sectlist[sn].ptr -> loadaddress,
				sectlist[sn].ptr -> codesize
			);
	}

	// generate a sorted list of symbols and display it
	
	for (se = symlist; se; se = se -> next)
	{
		for (pe = NULL, ce = slist; ce; ce = ce -> next)
		{
			i = strcmp(ce -> name, se -> sym);
			if (i > 0)
			{
				break;
			}
			pe = ce;
		}
		
		ne = lw_alloc(sizeof(struct symliste));
		ne -> ext = 1;
		ne -> addr = se -> val;
		ne -> next = ce;
		ne -> name = se -> sym;
		ne -> fn = "<synthetic>";
		if (pe)
			pe -> next = ne;
		else
			slist = ne;
	}
	
	for (sn = 0; sn < nsects; sn++)
	{
		for (sym = sectlist[sn].ptr -> localsyms; sym; sym = sym -> next)
		{
			for (pe = NULL, ce = slist; ce; ce = ce -> next)
			{
				i = strcmp(ce -> name, (char *)(sym -> sym));
				if (i == 0)
				{
					i = strcmp(ce -> fn, sectlist[sn].ptr -> file -> filename);
				}
				if (i > 0)
					break;
				pe = ce;
			}
			ne = lw_alloc(sizeof(struct symliste));
			ne -> ext = 0;
			if (sectlist[sn].ptr -> flags & SECTION_CONST)
				ne -> addr = sym -> offset;
			else
				ne -> addr = sym -> offset + sectlist[sn].ptr -> loadaddress;
			ne -> next = ce;
			ne -> name = (char *)(sym -> sym);
			ne -> fn = sectlist[sn].ptr -> file -> filename;
			if (pe)
				pe -> next = ne;
			else
				slist = ne;
		}
	}
	
	for (ce = slist; ce; ce = ce -> next)
	{
		fprintf(of, "Symbol: %s (%s) = %04X\n", sanitize_symbol(ce -> name), ce -> fn, ce -> addr);
	}

	if (!std)
		fclose(of);
}