#include "defs.h"
#include "inferior.h"
#include "regcache.h"
#include "target.h"
#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include "hppa-tdep.h"
#include "inf-ptrace.h"
static int
hppabsd_gregset_supplies_p (int regnum)
{
return (regnum >= HPPA_R0_REGNUM && regnum <= HPPA_PCOQ_TAIL_REGNUM);
}
static void
hppabsd_supply_gregset (struct regcache *regcache, const void *gregs)
{
const char *regs = gregs;
int regnum;
for (regnum = HPPA_R1_REGNUM; regnum <= HPPA_R31_REGNUM; regnum++)
regcache_raw_supply (regcache, regnum, regs + regnum * 4);
regcache_raw_supply (regcache, HPPA_SAR_REGNUM, regs);
regcache_raw_supply (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
regcache_raw_supply (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
}
static void
hppabsd_collect_gregset (const struct regcache *regcache,
void *gregs, int regnum)
{
char *regs = gregs;
int i;
for (i = HPPA_R1_REGNUM; i <= HPPA_R31_REGNUM; i++)
{
if (regnum == -1 || regnum == i)
regcache_raw_collect (regcache, i, regs + i * 4);
}
if (regnum == -1 || regnum == HPPA_SAR_REGNUM)
regcache_raw_collect (regcache, HPPA_SAR_REGNUM, regs);
if (regnum == -1 || regnum == HPPA_PCOQ_HEAD_REGNUM)
regcache_raw_collect (regcache, HPPA_PCOQ_HEAD_REGNUM, regs + 32 * 4);
if (regnum == -1 || regnum == HPPA_PCOQ_TAIL_REGNUM)
regcache_raw_collect (regcache, HPPA_PCOQ_TAIL_REGNUM, regs + 33 * 4);
}
static void
hppabsd_fetch_registers (int regnum)
{
struct regcache *regcache = current_regcache;
if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
{
struct reg regs;
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
perror_with_name (_("Couldn't get registers"));
hppabsd_supply_gregset (regcache, ®s);
}
}
static void
hppabsd_store_registers (int regnum)
{
if (regnum == -1 || hppabsd_gregset_supplies_p (regnum))
{
struct reg regs;
if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
perror_with_name (_("Couldn't get registers"));
hppabsd_collect_gregset (current_regcache, ®s, regnum);
if (ptrace (PT_SETREGS, PIDGET (inferior_ptid),
(PTRACE_TYPE_ARG3) ®s, 0) == -1)
perror_with_name (_("Couldn't write registers"));
}
}
void _initialize_hppabsd_nat (void);
void
_initialize_hppabsd_nat (void)
{
struct target_ops *t;
t = inf_ptrace_target ();
t->to_fetch_registers = hppabsd_fetch_registers;
t->to_store_registers = hppabsd_store_registers;
add_target (t);
}