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/*
* init routines
*/
#include "defs.h"
#include "fns.h"
char *symfil;
char *corfil;
Map *symmap;
Map *cormap;
Regs *correg;
Map *dotmap;
void
setsym(void)
{
if(symhdr && symopen(symhdr) < 0)
dprint("symopen: %r\n");
/*
Symbol s;
if (mach->sbreg && lookup(0, mach->sbreg, &s) < 0)
mach->sb = s.loc.addr;
*/
}
void
setcor(void)
{
static int mapped;
if (corhdr) {
if (!mapped) {
if (mapfile(corhdr, 0, cormap, &correg) < 0)
dprint("mapfile %s: %r\n", corfil);
mapped = 1;
}
free(correg);
if (pid == 0 && corhdr->nthread > 0)
pid = corhdr->thread[0].id;
correg = coreregs(corhdr, pid);
if(correg == nil)
dprint("no such pid in core dump\n");
} else {
unmapproc(cormap);
unmapfile(corhdr, cormap);
free(correg);
correg = nil;
if (pid > 0) {
if (mapproc(pid, cormap, &correg) < 0)
dprint("mapproc %d: %r\n", pid);
} else
dprint("no core image\n");
}
kmsys();
return;
}
Map*
dumbmap(int fd)
{
Map *dumb;
Seg s;
dumb = allocmap();
memset(&s, 0, sizeof s);
s.fd = fd;
s.base = 0;
s.offset = 0;
s.size = 0xFFFFFFFF;
s.name = "data";
s.file = "<dumb>";
if(addseg(dumb, s) < 0){
freemap(dumb);
return nil;
}
if(mach == nil)
mach = machcpu;
return dumb;
}
/*
* set up maps for a direct process image (/proc)
*/
void
cmdmap(Map *map)
{
int i;
char name[MAXSYM];
rdc();
readsym(name);
i = findseg(map, name, nil);
if (i < 0) /* not found */
error("Invalid map name");
if (expr(0)) {
// if (strcmp(name, "text") == 0)
// textseg(expv, &fhdr);
map->seg[i].base = expv;
} else
error("Invalid base address");
if (expr(0))
map->seg[i].size = expv - map->seg[i].base;
else
error("Invalid end address");
if (expr(0))
map->seg[i].offset = expv;
else
error("Invalid file offset");
/*
if (rdc()=='?' && map == cormap) {
if (fcor)
close(fcor);
fcor=fsym;
corfil = symfil;
cormap = symmap;
} else if (lastc == '/' && map == symmap) {
if (fsym)
close(fsym);
fsym=fcor;
symfil=corfil;
symmap=cormap;
} else
reread();
*/
}
void
kmsys(void)
{
int i;
i = findseg(symmap, "text", symfil);
if (i >= 0) {
symmap->seg[i].base = symmap->seg[i].base&~mach->ktmask;
symmap->seg[i].size = -symmap->seg[i].base;
}
i = findseg(symmap, "data", symfil);
if (i >= 0) {
symmap->seg[i].base = symmap->seg[i].base&~mach->ktmask;
symmap->seg[i].size = -symmap->seg[i].base;
}
}
void
attachprocess(void)
{
if (!adrflg) {
dprint("usage: pid$a\n");
return;
}
pid = adrval;
setcor();
}
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