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#include <u.h>
#include <libc.h>
#include <mach.h>
#include "elf.h"
#include "ureg386.h"
#undef errno
#define errno uregerrno
typedef struct Lreg Lreg;
typedef struct Status Status;
typedef struct Psinfo Psinfo;
/*
* UregLinux386 is 64-bit aligned within status, so we shouldn't
* have any packing problems.
*/
struct Status
{
u32int signo;
u32int code;
u32int errno;
u32int cursig;
u32int sigpend;
u32int sighold;
u32int pid;
u32int ppid;
u32int pgrp;
u32int sid;
u32int utime[2];
u32int stime[2];
u32int cutime[2];
u32int cstime[2];
UregLinux386 reg;
u32int fpvalid;
};
enum
{
StatusSize = sizeof(Status)
};
struct Psinfo
{
char state;
char sname;
char zomb;
char nice;
u32int flag;
u16int uid;
u16int gid;
u32int pid;
u32int ppid;
u32int pgrp;
u32int sid;
char fname[16];
char psargs[80];
};
enum
{
PsinfoSize = sizeof(Psinfo)
};
int
coreregslinux386(Elf *elf, ElfNote *note, uchar **up)
{
Status *s;
UregLinux386 *l;
Ureg *u;
if(note->descsz < sizeof(Status)){
werrstr("elf status note too small");
return -1;
}
s = (Status*)note->desc;
l = &s->reg;
if((u = malloc(sizeof *u)) == nil)
return -1;
linux2ureg386(l, u);
*up = (uchar*)u;
return sizeof(Ureg);
}
int
corecmdlinux386(Elf *elf, ElfNote *note, char **pp)
{
char *t;
Psinfo *p;
*pp = nil;
if(note->descsz < sizeof(Psinfo)){
werrstr("elf psinfo note too small");
return -1;
}
p = (Psinfo*)note->desc;
/* print("elf name %s\nelf args %s\n", p->fname, p->psargs); */
t = malloc(80+1);
if(t == nil)
return -1;
memmove(t, p->psargs, 80);
t[80] = 0;
*pp = t;
return 0;
}
#define dprint if(0)print
void
elfcorelinux386(Fhdr *fp, Elf *elf, ElfNote *note)
{
int i;
Psinfo *ps;
Status *st;
Mach *m;
Ureg *u;
m = fp->mach;
dprint("%s ", note->name);
switch(note->type){
case ElfNotePrPsinfo:
ps = (Psinfo*)note->desc;
dprint("note info\n");
dprint("state=%d sname=%d zomb=%d nice=%d\n",
ps->state, ps->sname, ps->zomb, ps->nice);
dprint("flag=0x%ux uid=%ud gid=%ud pid=%ud ppid=%ud pgrp=%ud sid=%ud\n",
(uint)m->swap4(ps->flag),
(uint)m->swap2(ps->uid),
(uint)m->swap2(ps->gid),
(uint)m->swap4(ps->pid),
(uint)m->swap4(ps->ppid),
(uint)m->swap4(ps->pgrp),
(uint)m->swap4(ps->sid));
dprint("fname=%s psargs=%s\n", ps->fname, ps->psargs);
fp->pid = m->swap4(ps->pid);
if((fp->prog = strdup(ps->fname)) == nil)
fprint(2, "warning: out of memory saving core program name\n");
if((fp->cmdline = strdup(ps->psargs)) == nil)
fprint(2, "warning: out of memory saving core command line\n");
break;
case ElfNotePrTaskstruct:
dprint("note taskstruct\n");
break;
case ElfNotePrAuxv:
dprint("note auxv\n");
break;
case ElfNotePrStatus:
dprint("note status\n");
if(note->descsz < StatusSize){
dprint("too small\n");
break;
}
st = (Status*)note->desc;
dprint("sig=%ud code=%ud errno=%ud cursig=%ud sigpend=0x%ux sighold=0x%ux\n",
(uint)m->swap4(st->signo),
(uint)m->swap4(st->code),
(uint)m->swap4(st->errno),
(uint)m->swap4(st->cursig),
(uint)m->swap4(st->sigpend),
(uint)m->swap4(st->sighold));
dprint("pid=%ud ppid=%ud pgrp=%ud sid=%ud\n",
(uint)m->swap4(st->pid),
(uint)m->swap4(st->ppid),
(uint)m->swap4(st->pgrp),
(uint)m->swap4(st->sid));
dprint("utime=%ud.%06ud stime=%ud.%06ud cutime=%ud.%06ud cstime=%ud.%06ud\n",
(uint)m->swap4(st->utime[0]),
(uint)m->swap4(st->utime[1]),
(uint)m->swap4(st->stime[0]),
(uint)m->swap4(st->stime[1]),
(uint)m->swap4(st->cutime[0]),
(uint)m->swap4(st->cutime[1]),
(uint)m->swap4(st->cstime[0]),
(uint)m->swap4(st->cstime[1]));
dprint("fpvalid=%ud\n",
(uint)m->swap4(st->fpvalid));
if((fp->thread = realloc(fp->thread, (1+fp->nthread)*sizeof(fp->thread[0]))) == nil){
fprint(2, "warning: out of memory saving thread info\n");
return;
}
i = fp->nthread;
fp->thread[i].id = m->swap4(st->pid);
u = malloc(sizeof *u);
if(u == nil){
fprint(2, "warning: out of memory saving thread info\n");
return;
}
fp->thread[i].ureg = u;
linux2ureg386(&st->reg, u);
fp->nthread++;
break;
case ElfNotePrFpreg:
dprint("note fpreg\n");
/* XXX maybe record floating-point registers eventually */
break;
case ElfNotePrXfpreg:
dprint("note xfpreg\n");
/* XXX maybe record floating-point registers eventually */
break;
default:
dprint("note %d\n", note->type);
}
}
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