view lwlink/lwlink.c @ 396:d0c0fede5021

Update to gcc6809lw patch which may help compilation of some sources Due to persistent random compiler crashes and errors related to "M_REGS", this patch update (4.6.4-2) essentially removes the varius constraints allowing the "soft registers" in most operations. It was causing more problems than it solved and it is not clear that the logic behind those soft registers even makes sense any more. This patch also fixes a bogus comparison related to selecting the right size for a constant. Instead of the excessively clever comparison scheme that was previously in use, the comparisons have been replaced with straight forward comparisions for the top and bottom of the relevant 2's complement ranges.
author William Astle <lost@l-w.ca>
date Mon, 20 Jul 2015 22:32:41 -0600
parents c6a38fd8bd33
children
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/*
lwlink.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/>.



*/

#define __lwlink_c_seen__

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

#include <lw_alloc.h>
#include <lw_string.h>

#include "lwlink.h"

int debug_level = 0;
int outformat = OUTPUT_DECB;
char *outfile = NULL;
char *scriptfile = NULL;
int symerr = 0;
char *map_file = NULL;

fileinfo_t **inputfiles = NULL;
int ninputfiles = 0;

int nlibdirs = 0;
char **libdirs = NULL;

int nscriptls = 0;
char **scriptls = NULL;

char *sysroot = "/";

char *entrysym = NULL;

void add_input_file(char *fn)
{
	inputfiles = lw_realloc(inputfiles, sizeof(fileinfo_t *) * (ninputfiles + 1));
	inputfiles[ninputfiles] = lw_alloc(sizeof(fileinfo_t));
	memset(inputfiles[ninputfiles], 0, sizeof(fileinfo_t));
	inputfiles[ninputfiles] -> forced = 1;
	inputfiles[ninputfiles++] -> filename = lw_strdup(fn);
}

void add_input_library(char *libname)
{
	inputfiles = lw_realloc(inputfiles, sizeof(fileinfo_t *) * (ninputfiles + 1));
	inputfiles[ninputfiles] = lw_alloc(sizeof(fileinfo_t));
	memset(inputfiles[ninputfiles], 0, sizeof(fileinfo_t));
	inputfiles[ninputfiles] -> islib = 1;
	inputfiles[ninputfiles] -> forced = 0;
	inputfiles[ninputfiles++] -> filename = lw_strdup(libname);	
}

void add_library_search(char *libdir)
{
	libdirs = lw_realloc(libdirs, sizeof(char*) * (nlibdirs + 1));
	libdirs[nlibdirs] = lw_strdup(libdir);
	nlibdirs++;
}

void add_section_base(char *sectspec)
{
	char *base;
	int baseaddr;
	char *t;
	int l;
	
	base = strchr(sectspec, '=');
	if (!base)
	{
		l = strlen(sectspec);
		baseaddr = 0;
	}
	else
	{
		baseaddr = strtol(base + 1, NULL, 16);
		l = base - sectspec;
		*base = '\0';
	}
	baseaddr = baseaddr & 0xffff;
	
	t = lw_alloc(l + 25);
	sprintf(t, "section %s load %04X", sectspec, baseaddr);
	if (base)
		*base = '=';
	
	scriptls = lw_realloc(scriptls, sizeof(char *) * (nscriptls + 1));
	scriptls[nscriptls++] = t;
}

char *sanitize_symbol(char *symbol)
{
	static char symbuf[2048];
	char *sym = symbol;
	char *tp = symbuf;
	
	for (; *sym; sym++)
	{
		int c1 = *sym;
		if (c1 == '\\')
		{
			*tp++ = '\\';
			*tp++ = '\\';
			continue;
		}
		if (c1 < 32 || c1 > 126)
		{
			int c;
			*tp++ = '\\';
			c = c1 >> 4;
			c += 48;
			if (c > 57)
				c += 7;
			*tp++ = c;
			c = c1 & 15;
			c += 48;
			if (c > 57)
				c += 7;
			*tp++ = c;
			continue;
		}
		*tp++ = c1;
	}
	*tp = 0;
	return symbuf;
}