/* Extensions to built-in functions */
VALUE_S *
eppic_memset(VALUE_S *vaddr, VALUE_S *vch, VALUE_S *vlen)
{
ull addr = eppic_getval(vaddr);
int len = eppic_getval(vlen);
int ch = eppic_getval(vch);
/*
* Set the value at address from iaddr till iaddr + nbytes
* to the value specified in variable ch
*/
UPDATE_FILTER_INFO_RAW(addr, ch, len);
return eppic_makebtype(1);
}
int
apigetval(char *name, ull *val, VALUE_S *value)
{
ull ptr = 0;
ptr = GET_SYMBOL_ADDR_ALL(name);
if (!ptr)
return 0;
*val = ptr;
if (!value)
return 1;
/* Support for fully typed symbol access */
ull type;
TYPE_S *stype;
type = GET_DIE_OFFSET(name);
stype = eppic_gettype(value);
apigetrtype(type, stype);
eppic_pushref(stype, 1);
eppic_setmemaddr(value, *val);
eppic_do_deref(1, value, value);
*val = eppic_getval(value);
if (!eppic_typeislocal(stype) && eppic_type_getidx(stype) > 100) {
char *tname = GET_DIE_NAME(eppic_type_getidx(stype));
if (tname) {
eppic_chktype(stype, tname);
/* Free the memory allocated by makedumpfile. */
free(tname);
}
}
return 1;
}
/*
Print a type.
Typical output of the 'whatis' command.
*/
static
void eppic_ptype2(type_t*t, value_t*v, int level, int indent, char *name, int ref, int justv)
{
int type=t->type;
eppic_indent(level, indent);
switch(type) {
case V_STRUCT: case V_UNION:
/* make sure we have all the member info */
eppic_print_ctype(t, v, level, 0, name, ref, justv);
break;
case V_TYPEDEF:
/* no typedef should get here */
eppic_warning("Typedef in print!");
break;
case V_ENUM:
/* no enum should get here */
eppic_warning("ENUM in print!");
break;
case V_REF:
{
int refi=t->ref, ref=refi;
/* decrement ref if this was declared as a array */
if(t->idxlst) ref--;
/* print the referenced type */
eppic_popref(t, t->ref);
eppic_ptype2(t, 0, level, 0, 0, 1, justv);
eppic_pushref(t, refi);
if(!justv) {
char buf[100], buf2[100];
int pos=0, len=sizeof(buf);
buf[0]='\0';
if(t->fct) buf[pos++]='(';
if(pos < len)
pos += snprintf(buf+pos, len-pos, "%s%s", eppic_getref(ref), name?name:"");
if(pos < len)
pos += snprintf(buf+pos, len-pos, "%s", eppic_getidx(t, buf2, sizeof(buf2)));
if(pos < len && t->fct)
pos += snprintf(buf+pos, len-pos, "%s", ")()");
eppic_msg("%*s ", NAMESPACE, buf);
}
/* arrays are ref with boundaries... */
if(t->idxlst && v) {
if(t->idxlst[1] || t->rtype!=V_BASE || t->size!=1 || !eppic_prtstr(v, justv))
{
if(!justv) eppic_msg("= ");
eppic_popref(t, 1);
eppic_prtarray(t, v->mem, level, 0);
eppic_pushref(t, 1);
}
} else if(v) {
if(!justv) eppic_msg("= ");
if(!eppic_getval(v)) eppic_msg("(nil)");
else {
if(eppic_defbsize()==8) eppic_msg("0x%016llx", eppic_getval(v));
else eppic_msg("0x%08x", eppic_getval(v));
}
if(t->ref==1 && t->rtype==V_BASE && t->size==1) {
(void)eppic_prtstr(v, justv);
}
}
}
break;
case V_BASE:
{
if(eppic_isenum(t->typattr)) {
stinfo_t *st=eppic_getstbyindex(t->rtype, V_ENUM);
if(!justv) {
char buf[200];
snprintf(buf, sizeof(buf), "enum %s", st->name?st->name:"");
eppic_msg("%-*s ", SPACER, buf);
eppic_msg("%*s ", NAMESPACE, (name&&v)?name:"");
}
if(v) {
enum_t *e=st->enums;
eppic_msg("= ");
eppic_prbval(v);
while(e) {
if(e->value==eppic_getval(v)) {
eppic_msg(" [%s]", e->name);
break;
}
e=e->next;
}
if(!e) eppic_msg(" [???]");
}else{
enum_t *e=st->enums;
int count=0;
eppic_msg(" {");
while(e) {
if(!(count%4)) {
eppic_msg("\n");
eppic_indent(level+1, 1);
}
count ++;
eppic_msg("%s = %d, ", e->name, e->value);
e=e->next;
}
eppic_msg("\n");
eppic_indent(level, 1);
eppic_msg("%-*s ", SPACER, "}");
if(ref) return;
eppic_msg("%*s ", NAMESPACE, name?name:"");
}
} else {
if(!justv) {
eppic_msg("%-*s " , SPACER , eppic_getbtypename(t->typattr));
if(ref) return;
eppic_msg("%s%*s ", eppic_getref(t->ref), NAMESPACE, name?name:"");
}
if(v) {
if(!justv) eppic_msg("= ");
eppic_prbval(v);
}
}
}
break;
case V_STRING:
if(!justv) {
eppic_msg("%-*s " , SPACER , "string");
eppic_msg("%*s ", NAMESPACE, name?name:"");
}
if(v) {
if(!justv) eppic_msg("= ");
eppic_msg("\"%s\"", v->v.data);
}
break;
}
if(indent) eppic_msg("\n");
}
static value_t *
eppic_exeindex(index_t *i)
{
value_t *var;
value_t *vi=NODE_EXE(i->index);
value_t *v;
srcpos_t p;
eppic_curpos(&i->pos, &p);
/* we need to make believe it's been initiazed */
eppic_setini(i->var);
var=NODE_EXE(i->var);
/* check the type of the variable */
/* if it's a pointer then index through the image */
if(var->type.type==V_REF) {
int size;
int n=eppic_getval(vi);
value_t *ref;
/* if this is an array and we're not at the rightmost index */
if(var->type.idxlst && var->type.idxlst[1]) {
int i, size=var->type.size;
v=eppic_cloneval(var);
v->type.idxlst[0]=0;
for(i=1; var->type.idxlst[i]; i++) {
size *= var->type.idxlst[i];
v->type.idxlst[i]=var->type.idxlst[i+1];
}
if(eppic_defbsize()==4) {
v->v.ul+=size*n;
v->mem=v->v.ul;
} else {
v->v.ull+=size*n;
v->mem=v->v.ull;
}
} else {
v=eppic_newval();
ref=eppic_cloneval(var);
if(var->type.ref==1) size=var->type.size;
else size=eppic_defbsize();
if(eppic_defbsize()==4) {
ref->v.ul+=size*n;
ref->mem=ref->v.ul;
} else {
ref->v.ull+=size*n;
ref->mem=ref->v.ull;
}
eppic_do_deref(1, v, ref);
eppic_freeval(ref);
}
} else {
v=eppic_newval();
/* use dynamic indexing aka awk indexing */
eppic_valindex(var, vi, v);
}
/* discard expression results */
eppic_freeval(var);
eppic_freeval(vi);
eppic_curpos(&p, 0);
return v;
}
static void
eppic_prbval(value_t *v)
{
if(eppic_issigned(v->type.typattr)) eppic_msg("%8lld", eppic_getval(v));
else eppic_msg("%8llu", eppic_getval(v));
}