#include <sys/types.h>
#include <sys/ptrace.h>
#include <machine/reg.h>
#include <machine/frame.h>
#include <machine/pcb.h>
#include "defs.h"
#include "inferior.h"
#include "target.h"
#include "gdbcore.h"
#include "regcache.h"
#define RF(dst, src) \
memcpy(&deprecated_registers[DEPRECATED_REGISTER_BYTE(dst)], &src, sizeof(src))
#define RS(src, dst) \
memcpy(&dst, &deprecated_registers[DEPRECATED_REGISTER_BYTE(src)], sizeof(dst))
void
fetch_inferior_registers (int regno)
{
struct reg inferior_registers;
struct fpreg inferior_fpregisters;
ptrace (PT_GETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & inferior_fpregisters, 0);
RF (R0_REGNUM + 0, inferior_registers.r_r0);
RF (R0_REGNUM + 1, inferior_registers.r_r1);
RF (R0_REGNUM + 2, inferior_registers.r_r2);
RF (R0_REGNUM + 3, inferior_registers.r_r3);
RF (R0_REGNUM + 4, inferior_registers.r_r4);
RF (R0_REGNUM + 5, inferior_registers.r_r5);
RF (R0_REGNUM + 6, inferior_registers.r_r6);
RF (R0_REGNUM + 7, inferior_registers.r_r7);
RF (SP_REGNUM, inferior_registers.r_sp);
RF (DEPRECATED_FP_REGNUM, inferior_registers.r_fp);
RF (PC_REGNUM, inferior_registers.r_pc);
RF (PS_REGNUM, inferior_registers.r_psr);
RF (FPS_REGNUM, inferior_fpregisters.r_fsr);
RF (FP0_REGNUM + 0, inferior_fpregisters.r_freg[0]);
RF (FP0_REGNUM + 2, inferior_fpregisters.r_freg[2]);
RF (FP0_REGNUM + 4, inferior_fpregisters.r_freg[4]);
RF (FP0_REGNUM + 6, inferior_fpregisters.r_freg[6]);
RF (LP0_REGNUM + 1, inferior_fpregisters.r_freg[1]);
RF (LP0_REGNUM + 3, inferior_fpregisters.r_freg[3]);
RF (LP0_REGNUM + 5, inferior_fpregisters.r_freg[5]);
RF (LP0_REGNUM + 7, inferior_fpregisters.r_freg[7]);
deprecated_registers_fetched ();
}
void
store_inferior_registers (int regno)
{
struct reg inferior_registers;
struct fpreg inferior_fpregisters;
RS (R0_REGNUM + 0, inferior_registers.r_r0);
RS (R0_REGNUM + 1, inferior_registers.r_r1);
RS (R0_REGNUM + 2, inferior_registers.r_r2);
RS (R0_REGNUM + 3, inferior_registers.r_r3);
RS (R0_REGNUM + 4, inferior_registers.r_r4);
RS (R0_REGNUM + 5, inferior_registers.r_r5);
RS (R0_REGNUM + 6, inferior_registers.r_r6);
RS (R0_REGNUM + 7, inferior_registers.r_r7);
RS (SP_REGNUM, inferior_registers.r_sp);
RS (DEPRECATED_FP_REGNUM, inferior_registers.r_fp);
RS (PC_REGNUM, inferior_registers.r_pc);
RS (PS_REGNUM, inferior_registers.r_psr);
RS (FPS_REGNUM, inferior_fpregisters.r_fsr);
RS (FP0_REGNUM + 0, inferior_fpregisters.r_freg[0]);
RS (FP0_REGNUM + 2, inferior_fpregisters.r_freg[2]);
RS (FP0_REGNUM + 4, inferior_fpregisters.r_freg[4]);
RS (FP0_REGNUM + 6, inferior_fpregisters.r_freg[6]);
RS (LP0_REGNUM + 1, inferior_fpregisters.r_freg[1]);
RS (LP0_REGNUM + 3, inferior_fpregisters.r_freg[3]);
RS (LP0_REGNUM + 5, inferior_fpregisters.r_freg[5]);
RS (LP0_REGNUM + 7, inferior_fpregisters.r_freg[7]);
ptrace (PT_SETREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
ptrace (PT_SETFPREGS, PIDGET (inferior_ptid),
(PTRACE_ARG3_TYPE) & inferior_fpregisters, 0);
}
struct coreregs
{
struct reg intreg;
struct fpreg freg;
};
static void
fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, int which,
unsigned int reg_addr)
{
struct coreregs *core_reg;
core_reg = (struct coreregs *) core_reg_sect;
if (core_reg_size < sizeof (*core_reg))
{
fprintf_unfiltered (gdb_stderr, "Couldn't read regs from core file\n");
return;
}
RF (R0_REGNUM + 0, core_reg->intreg.r_r0);
RF (R0_REGNUM + 1, core_reg->intreg.r_r1);
RF (R0_REGNUM + 2, core_reg->intreg.r_r2);
RF (R0_REGNUM + 3, core_reg->intreg.r_r3);
RF (R0_REGNUM + 4, core_reg->intreg.r_r4);
RF (R0_REGNUM + 5, core_reg->intreg.r_r5);
RF (R0_REGNUM + 6, core_reg->intreg.r_r6);
RF (R0_REGNUM + 7, core_reg->intreg.r_r7);
RF (SP_REGNUM, core_reg->intreg.r_sp);
RF (DEPRECATED_FP_REGNUM, core_reg->intreg.r_fp);
RF (PC_REGNUM, core_reg->intreg.r_pc);
RF (PS_REGNUM, core_reg->intreg.r_psr);
RF (FPS_REGNUM, core_reg->freg.r_fsr);
RF (FP0_REGNUM + 0, core_reg->freg.r_freg[0]);
RF (FP0_REGNUM + 2, core_reg->freg.r_freg[2]);
RF (FP0_REGNUM + 4, core_reg->freg.r_freg[4]);
RF (FP0_REGNUM + 6, core_reg->freg.r_freg[6]);
RF (LP0_REGNUM + 1, core_reg->freg.r_freg[1]);
RF (LP0_REGNUM + 3, core_reg->freg.r_freg[3]);
RF (LP0_REGNUM + 5, core_reg->freg.r_freg[5]);
RF (LP0_REGNUM + 7, core_reg->freg.r_freg[7]);
deprecated_registers_fetched ();
}
static struct core_fns nat_core_fns =
{
bfd_target_unknown_flavour,
default_check_format,
default_core_sniffer,
fetch_core_registers,
NULL
};
void
_initialize_ns32knbsd_nat (void)
{
add_core_fns (&nat_core_fns);
}
#ifdef FETCH_KCORE_REGISTERS
void
fetch_kcore_registers (struct pcb *pcb)
{
struct switchframe sf;
struct reg intreg;
int dummy;
if (target_read_memory ((CORE_ADDR) pcb->pcb_ksp, (char *) &sf, sizeof sf))
error ("Cannot read integer registers.");
if (target_read_memory ((CORE_ADDR) pcb->pcb_onstack, (char *) &intreg, sizeof intreg))
error ("Cannot read processor status register.");
dummy = 0;
RF (R0_REGNUM + 0, dummy);
RF (R0_REGNUM + 1, dummy);
RF (R0_REGNUM + 2, dummy);
RF (R0_REGNUM + 3, sf.sf_r3);
RF (R0_REGNUM + 4, sf.sf_r4);
RF (R0_REGNUM + 5, sf.sf_r5);
RF (R0_REGNUM + 6, sf.sf_r6);
RF (R0_REGNUM + 7, sf.sf_r7);
dummy = pcb->pcb_kfp + 8;
RF (SP_REGNUM, dummy);
RF (DEPRECATED_FP_REGNUM, sf.sf_fp);
RF (PC_REGNUM, sf.sf_pc);
RF (PS_REGNUM, intreg.r_psr);
RF (FPS_REGNUM, pcb->pcb_fsr);
RF (FP0_REGNUM + 0, pcb->pcb_freg[0]);
RF (FP0_REGNUM + 2, pcb->pcb_freg[2]);
RF (FP0_REGNUM + 4, pcb->pcb_freg[4]);
RF (FP0_REGNUM + 6, pcb->pcb_freg[6]);
RF (LP0_REGNUM + 1, pcb->pcb_freg[1]);
RF (LP0_REGNUM + 3, pcb->pcb_freg[3]);
RF (LP0_REGNUM + 5, pcb->pcb_freg[5]);
RF (LP0_REGNUM + 7, pcb->pcb_freg[7]);
deprecated_registers_fetched ();
}
#endif
void
clear_regs (void)
{
double zero = 0.0;
int null = 0;
RF (R0_REGNUM + 0, null);
RF (R0_REGNUM + 1, null);
RF (R0_REGNUM + 2, null);
RF (R0_REGNUM + 3, null);
RF (R0_REGNUM + 4, null);
RF (R0_REGNUM + 5, null);
RF (R0_REGNUM + 6, null);
RF (R0_REGNUM + 7, null);
RF (SP_REGNUM, null);
RF (DEPRECATED_FP_REGNUM, null);
RF (PC_REGNUM, null);
RF (PS_REGNUM, null);
RF (FPS_REGNUM, zero);
RF (FP0_REGNUM + 0, zero);
RF (FP0_REGNUM + 2, zero);
RF (FP0_REGNUM + 4, zero);
RF (FP0_REGNUM + 6, zero);
RF (LP0_REGNUM + 0, zero);
RF (LP0_REGNUM + 1, zero);
RF (LP0_REGNUM + 2, zero);
RF (LP0_REGNUM + 3, zero);
return;
}
int
frame_num_args (struct frame_info *fi)
{
CORE_ADDR enter_addr;
CORE_ADDR argp;
int inst;
int args;
int i;
if (read_memory_integer (fi->frame, 4) == 0 && fi->pc < 0x10000)
{
return (3);
}
enter_addr = ns32k_get_enter_addr (fi->pc);
if (enter_addr = 0)
return (-1);
argp = (enter_addr == 1
? DEPRECATED_SAVED_PC_AFTER_CALL (fi)
: DEPRECATED_FRAME_SAVED_PC (fi));
for (i = 0; i < 16; i++)
{
inst = read_memory_integer (argp, 4);
args = read_memory_integer (argp + 2, 4);
if ((inst & 0xff) == 0xea)
{
args = ((inst >> 8) & 0xffffff) | (args << 24);
if (args & 0x80)
{
if (args & 0x40)
{
args = ntohl (args);
}
else
{
args = ntohs (args & 0xffff);
if (args & 0x2000)
args |= 0xc000;
}
}
else
{
args = args & 0xff;
if (args & 0x40)
args |= 0x80;
}
argp += args;
continue;
}
if ((inst & 0xffff) == 0xb81f)
return (1);
else if ((inst & 0xffff) == 0xbdc7)
return (2);
else if ((inst & 0xfffc) == 0xa57c)
{
switch (inst & 3)
{
case 0:
args = ((args & 0xff) + 0x80);
break;
case 1:
args = ((ntohs (args) & 0xffff) + 0x8000);
break;
case 3:
args = -ntohl (args);
break;
default:
return (-1);
}
if (args / 4 > 10 || (args & 3) != 0)
continue;
return (args / 4);
}
argp += 1;
}
return (-1);
}