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/*
* Debugging object format (used to debug object format module interface)
*
* Copyright (C) 2001-2007 Peter Johnson
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <util.h>
#include <libyasm.h>
typedef struct yasm_objfmt_dbg {
yasm_objfmt_base objfmt; /* base structure */
FILE *dbgfile;
} yasm_objfmt_dbg;
yasm_objfmt_module yasm_dbg_LTX_objfmt;
static yasm_objfmt *
dbg_objfmt_create(yasm_object *object)
{
yasm_objfmt_dbg *objfmt_dbg = yasm_xmalloc(sizeof(yasm_objfmt_dbg));
objfmt_dbg->objfmt.module = &yasm_dbg_LTX_objfmt;
objfmt_dbg->dbgfile = tmpfile();
if (!objfmt_dbg->dbgfile) {
fprintf(stderr, N_("could not open temporary file"));
return 0;
}
fprintf(objfmt_dbg->dbgfile, "create()\n");
return (yasm_objfmt *)objfmt_dbg;
}
static void
dbg_objfmt_output(yasm_object *object, FILE *f, int all_syms,
yasm_errwarns *errwarns)
{
yasm_objfmt_dbg *objfmt_dbg = (yasm_objfmt_dbg *)object->objfmt;
char buf[1024];
size_t i;
/* Copy temp file to real output file */
rewind(objfmt_dbg->dbgfile);
while ((i = fread(buf, 1, 1024, objfmt_dbg->dbgfile))) {
if (fwrite(buf, 1, i, f) != i)
break;
}
/* Reassign objfmt debug file to output file */
fclose(objfmt_dbg->dbgfile);
objfmt_dbg->dbgfile = f;
fprintf(objfmt_dbg->dbgfile, "output(f, object->\n");
yasm_object_print(object, objfmt_dbg->dbgfile, 1);
fprintf(objfmt_dbg->dbgfile, "%d)\n", all_syms);
fprintf(objfmt_dbg->dbgfile, " Symbol Table:\n");
yasm_symtab_print(object->symtab, objfmt_dbg->dbgfile, 1);
}
static void
dbg_objfmt_destroy(yasm_objfmt *objfmt)
{
yasm_objfmt_dbg *objfmt_dbg = (yasm_objfmt_dbg *)objfmt;
fprintf(objfmt_dbg->dbgfile, "destroy()\n");
yasm_xfree(objfmt);
}
static void
dbg_objfmt_init_new_section(yasm_section *sect, unsigned long line)
{
yasm_object *object = yasm_section_get_object(sect);
yasm_objfmt_dbg *objfmt_dbg = (yasm_objfmt_dbg *)object->objfmt;
fprintf(objfmt_dbg->dbgfile, "init_new_section(\"%s\", %lu)\n",
yasm_section_get_name(sect), line);
yasm_symtab_define_label(object->symtab, ".text",
yasm_section_bcs_first(sect), 1, 0);
}
static yasm_section *
dbg_objfmt_add_default_section(yasm_object *object)
{
yasm_objfmt_dbg *objfmt_dbg = (yasm_objfmt_dbg *)object->objfmt;
yasm_section *retval;
int isnew;
fprintf(objfmt_dbg->dbgfile, "add_default_section()\n");
retval = yasm_object_get_general(object, ".text", 0, 0, 0, &isnew, 0);
if (isnew) {
yasm_section_set_default(retval, 1);
}
return retval;
}
static /*@observer@*/ /*@null@*/ yasm_section *
dbg_objfmt_section_switch(yasm_object *object, yasm_valparamhead *valparams,
/*@unused@*/ /*@null@*/
yasm_valparamhead *objext_valparams,
unsigned long line)
{
yasm_objfmt_dbg *objfmt_dbg = (yasm_objfmt_dbg *)object->objfmt;
yasm_valparam *vp;
yasm_section *retval;
int isnew;
fprintf(objfmt_dbg->dbgfile, "section_switch(headp, ");
yasm_vps_print(valparams, objfmt_dbg->dbgfile);
fprintf(objfmt_dbg->dbgfile, ", ");
yasm_vps_print(objext_valparams, objfmt_dbg->dbgfile);
fprintf(objfmt_dbg->dbgfile, ", %lu), returning ", line);
vp = yasm_vps_first(valparams);
if (!yasm_vp_string(vp)) {
fprintf(objfmt_dbg->dbgfile, "NULL\n");
return NULL;
}
retval = yasm_object_get_general(object, yasm_vp_string(vp), 0, 0, 0,
&isnew, line);
if (isnew) {
fprintf(objfmt_dbg->dbgfile, "(new) ");
}
yasm_section_set_default(retval, 0);
fprintf(objfmt_dbg->dbgfile, "\"%s\" section\n", vp->val);
return retval;
}
static /*@observer@*/ /*@null@*/ yasm_symrec *
dbg_objfmt_get_special_sym(yasm_object *object, const char *name,
const char *parser)
{
yasm_objfmt_dbg *objfmt_dbg = (yasm_objfmt_dbg *)object->objfmt;
fprintf(objfmt_dbg->dbgfile, "get_special_sym(object, \"%s\", \"%s\")\n",
name, parser);
return NULL;
}
/* Define valid debug formats to use with this object format */
static const char *dbg_objfmt_dbgfmt_keywords[] = {
"null",
NULL
};
/* Define objfmt structure -- see objfmt.h for details */
yasm_objfmt_module yasm_dbg_LTX_objfmt = {
"Trace of all info passed to object format module",
"dbg",
"dbg",
32,
0,
dbg_objfmt_dbgfmt_keywords,
"null",
NULL, /* no directives */
NULL, /* no standard macros */
dbg_objfmt_create,
dbg_objfmt_output,
dbg_objfmt_destroy,
dbg_objfmt_add_default_section,
dbg_objfmt_init_new_section,
dbg_objfmt_section_switch,
dbg_objfmt_get_special_sym
};
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