#include "defs.h"
#include "gdbcore.h"
#include "regcache.h"
#include "gdb_string.h"
#include "inferior.h"
#include <sys/procfs.h>
#include <sys/ptrace.h>
#include <linux/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,43)
#include <asm/offset.h>
#else
#include <asm/offsets.h>
#endif
#include "hppa-tdep.h"
#include "gregset.h"
static const int u_offsets[] =
{
-1,
PT_GR1,
PT_GR2,
PT_GR3,
PT_GR4,
PT_GR5,
PT_GR6,
PT_GR7,
PT_GR8,
PT_GR9,
PT_GR10,
PT_GR11,
PT_GR12,
PT_GR13,
PT_GR14,
PT_GR15,
PT_GR16,
PT_GR17,
PT_GR18,
PT_GR19,
PT_GR20,
PT_GR21,
PT_GR22,
PT_GR23,
PT_GR24,
PT_GR25,
PT_GR26,
PT_GR27,
PT_GR28,
PT_GR29,
PT_GR30,
PT_GR31,
PT_SAR,
PT_IAOQ0,
PT_IASQ0,
PT_IAOQ1,
PT_IASQ1,
-1,
PT_IIR,
PT_ISR,
PT_IOR,
PT_PSW,
-1,
PT_SR4,
PT_SR0,
PT_SR1,
PT_SR2,
PT_SR3,
PT_SR5,
PT_SR6,
PT_SR7,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
PT_CR27,
-1,
-1,
-1,
PT_FR0, PT_FR0 + 4,
PT_FR1, PT_FR1 + 4,
PT_FR2, PT_FR2 + 4,
PT_FR3, PT_FR3 + 4,
PT_FR4, PT_FR4 + 4,
PT_FR5, PT_FR5 + 4,
PT_FR6, PT_FR6 + 4,
PT_FR7, PT_FR7 + 4,
PT_FR8, PT_FR8 + 4,
PT_FR9, PT_FR9 + 4,
PT_FR10, PT_FR10 + 4,
PT_FR11, PT_FR11 + 4,
PT_FR12, PT_FR12 + 4,
PT_FR13, PT_FR13 + 4,
PT_FR14, PT_FR14 + 4,
PT_FR15, PT_FR15 + 4,
PT_FR16, PT_FR16 + 4,
PT_FR17, PT_FR17 + 4,
PT_FR18, PT_FR18 + 4,
PT_FR19, PT_FR19 + 4,
PT_FR20, PT_FR20 + 4,
PT_FR21, PT_FR21 + 4,
PT_FR22, PT_FR22 + 4,
PT_FR23, PT_FR23 + 4,
PT_FR24, PT_FR24 + 4,
PT_FR25, PT_FR25 + 4,
PT_FR26, PT_FR26 + 4,
PT_FR27, PT_FR27 + 4,
PT_FR28, PT_FR28 + 4,
PT_FR29, PT_FR29 + 4,
PT_FR30, PT_FR30 + 4,
PT_FR31, PT_FR31 + 4,
};
CORE_ADDR
register_addr (int regno, CORE_ADDR blockend)
{
CORE_ADDR addr;
if ((unsigned) regno >= NUM_REGS)
error (_("Invalid register number %d."), regno);
if (u_offsets[regno] == -1)
addr = 0;
else
{
addr = (CORE_ADDR) u_offsets[regno];
}
return addr;
}
#define GR_REGNUM(_n) (HPPA_R0_REGNUM+_n)
#define TR_REGNUM(_n) (HPPA_TR0_REGNUM+_n)
static const int greg_map[] =
{
GR_REGNUM(0), GR_REGNUM(1), GR_REGNUM(2), GR_REGNUM(3),
GR_REGNUM(4), GR_REGNUM(5), GR_REGNUM(6), GR_REGNUM(7),
GR_REGNUM(8), GR_REGNUM(9), GR_REGNUM(10), GR_REGNUM(11),
GR_REGNUM(12), GR_REGNUM(13), GR_REGNUM(14), GR_REGNUM(15),
GR_REGNUM(16), GR_REGNUM(17), GR_REGNUM(18), GR_REGNUM(19),
GR_REGNUM(20), GR_REGNUM(21), GR_REGNUM(22), GR_REGNUM(23),
GR_REGNUM(24), GR_REGNUM(25), GR_REGNUM(26), GR_REGNUM(27),
GR_REGNUM(28), GR_REGNUM(29), GR_REGNUM(30), GR_REGNUM(31),
HPPA_SR4_REGNUM+1, HPPA_SR4_REGNUM+2, HPPA_SR4_REGNUM+3, HPPA_SR4_REGNUM+4,
HPPA_SR4_REGNUM, HPPA_SR4_REGNUM+5, HPPA_SR4_REGNUM+6, HPPA_SR4_REGNUM+7,
HPPA_PCOQ_HEAD_REGNUM, HPPA_PCOQ_TAIL_REGNUM,
HPPA_PCSQ_HEAD_REGNUM, HPPA_PCSQ_TAIL_REGNUM,
HPPA_SAR_REGNUM, HPPA_IIR_REGNUM, HPPA_ISR_REGNUM, HPPA_IOR_REGNUM,
HPPA_IPSW_REGNUM, HPPA_RCR_REGNUM,
TR_REGNUM(0), TR_REGNUM(1), TR_REGNUM(2), TR_REGNUM(3),
TR_REGNUM(4), TR_REGNUM(5), TR_REGNUM(6), TR_REGNUM(7),
HPPA_PID0_REGNUM, HPPA_PID1_REGNUM, HPPA_PID2_REGNUM, HPPA_PID3_REGNUM,
HPPA_CCR_REGNUM, HPPA_EIEM_REGNUM,
};
static void
fetch_register (int regno)
{
int tid;
int val;
if (CANNOT_FETCH_REGISTER (regno))
{
regcache_raw_supply (current_regcache, regno, NULL);
return;
}
tid = TIDGET (inferior_ptid);
if (tid == 0)
tid = PIDGET (inferior_ptid);
errno = 0;
val = ptrace (PTRACE_PEEKUSER, tid, register_addr (regno, 0), 0);
if (errno != 0)
error (_("Couldn't read register %s (#%d): %s."), REGISTER_NAME (regno),
regno, safe_strerror (errno));
regcache_raw_supply (current_regcache, regno, &val);
}
static void
store_register (int regno)
{
int tid;
int val;
if (CANNOT_STORE_REGISTER (regno))
return;
tid = TIDGET (inferior_ptid);
if (tid == 0)
tid = PIDGET (inferior_ptid);
errno = 0;
regcache_raw_collect (current_regcache, regno, &val);
ptrace (PTRACE_POKEUSER, tid, register_addr (regno, 0), val);
if (errno != 0)
error (_("Couldn't write register %s (#%d): %s."), REGISTER_NAME (regno),
regno, safe_strerror (errno));
}
void
fetch_inferior_registers (int regno)
{
if (-1 == regno)
{
for (regno = 0; regno < NUM_REGS; regno++)
fetch_register (regno);
}
else
{
fetch_register (regno);
}
}
void
store_inferior_registers (int regno)
{
if (-1 == regno)
{
for (regno = 0; regno < NUM_REGS; regno++)
store_register (regno);
}
else
{
store_register (regno);
}
}
void
supply_gregset (gdb_gregset_t *gregsetp)
{
int i;
greg_t *regp = (elf_greg_t *) gregsetp;
for (i = 0; i < sizeof (greg_map) / sizeof (greg_map[0]); i++, regp++)
{
int regno = greg_map[i];
regcache_raw_supply (current_regcache, regno, regp);
}
}
void
fill_gregset (gdb_gregset_t *gregsetp, int regno)
{
int i;
for (i = 0; i < sizeof (greg_map) / sizeof (greg_map[0]); i++)
{
int mregno = greg_map[i];
if (regno == -1 || regno == mregno)
{
regcache_raw_collect(current_regcache, mregno, &(*gregsetp)[i]);
}
}
}
void
supply_fpregset (gdb_fpregset_t *fpregsetp)
{
int regi;
char *from;
for (regi = 0; regi <= 31; regi++)
{
from = (char *) &((*fpregsetp)[regi]);
regcache_raw_supply (current_regcache, 2*regi + HPPA_FP0_REGNUM, from);
regcache_raw_supply (current_regcache, 2*regi + HPPA_FP0_REGNUM + 1,
from + 4);
}
}
void
fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
{
int i;
for (i = HPPA_FP0_REGNUM; i < HPPA_FP0_REGNUM + 32 * 2; i++)
{
char *to = (char *) &((*fpregsetp)[(i - HPPA_FP0_REGNUM) / 2]);
if ((i - HPPA_FP0_REGNUM) & 1)
to += 4;
regcache_raw_collect (current_regcache, i, to);
}
}