/* Native-dependent code for BSD Unix running on i386's, for GDB.
- Copyright 1988, 1989, 1991, 1992, 1994 Free Software Foundation, Inc.
+ Copyright 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
+
+#ifdef FETCH_INFERIOR_REGISTERS
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <machine/reg.h>
+#include <machine/frame.h>
+#include "inferior.h"
+
+void
+fetch_inferior_registers (regno)
+ int regno;
+{
+ struct reg inferior_registers;
+
+ ptrace (PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) & inferior_registers, 0);
+ memcpy (®isters[REGISTER_BYTE (0)], &inferior_registers, 4 * NUM_REGS);
+ registers_fetched ();
+}
+
+void
+store_inferior_registers (regno)
+ int regno;
+{
+ struct reg inferior_registers;
+
+ memcpy (&inferior_registers, ®isters[REGISTER_BYTE (0)], 4 * NUM_REGS);
+ ptrace (PT_SETREGS, inferior_pid, (PTRACE_ARG3_TYPE) & inferior_registers, 0);
+}
+
+struct md_core
+{
+ struct reg intreg;
+ struct fpreg freg;
+};
+
+void
+fetch_core_registers (core_reg_sect, core_reg_size, which, ignore)
+ char *core_reg_sect;
+ unsigned core_reg_size;
+ int which;
+ CORE_ADDR ignore;
+{
+ struct md_core *core_reg = (struct md_core *) core_reg_sect;
+
+ /* integer registers */
+ memcpy (®isters[REGISTER_BYTE (0)], &core_reg->intreg,
+ sizeof (struct reg));
+ /* floating point registers */
+ /* XXX */
+}
+
+#else
+
#include <machine/reg.h>
/* this table must line up with REGISTER_NAMES in tm-i386.h */
/* symbols like 'tEAX' come from <machine/reg.h> */
-static int tregmap[] =
+static int tregmap[] =
{
tEAX, tECX, tEDX, tEBX,
tESP, tEBP, tESI, tEDI,
};
#ifdef sEAX
-static int sregmap[] =
+static int sregmap[] =
{
sEAX, sECX, sEDX, sEBX,
sESP, sEBP, sESI, sEDI,
};
#else /* No sEAX */
-/* NetBSD has decided to collapse the s* and t* symbols. So if the s*
+/* FreeBSD has decided to collapse the s* and t* symbols. So if the s*
ones aren't around, use the t* ones for sregmap too. */
-static int sregmap[] =
+static int sregmap[] =
{
tEAX, tECX, tEDX, tEBX,
tESP, tEBP, tESI, tEDI,
return (blockend + 4 * sregmap[regnum]);
}
+#endif /* !FETCH_INFERIOR_REGISTERS */
#ifdef FLOAT_INFO
-#include "language.h" /* for local_hex_string */
+#include "expression.h"
+#include "language.h" /* for local_hex_string */
#include "floatformat.h"
#include <sys/param.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/uio.h>
-#define curpcb Xcurpcb /* XXX avoid leaking declaration from pcb.h */
+#define curpcb Xcurpcb /* XXX avoid leaking declaration from pcb.h */
#include <sys/user.h>
#undef curpcb
#include <sys/file.h>
-#include <sys/stat.h>
+#include "gdb_stat.h"
#include <sys/ptrace.h>
-extern void print_387_control_word (); /* i387-tdep.h */
+extern void print_387_control_word (); /* i387-tdep.h */
extern void print_387_status_word ();
#define fpstate save87
#define U_FPSTATE(u) u.u_pcb.pcb_savefpu
-struct env387
-{
- unsigned short control;
- unsigned short r0;
- unsigned short status;
- unsigned short r1;
- unsigned short tag;
- unsigned short r2;
- unsigned long eip;
- unsigned short code_seg;
- unsigned short opcode;
- unsigned long operand;
- unsigned short operand_seg;
- unsigned short r3;
- unsigned char regs[8][10];
-};
+struct env387
+ {
+ unsigned short control;
+ unsigned short r0;
+ unsigned short status;
+ unsigned short r1;
+ unsigned short tag;
+ unsigned short r2;
+ unsigned long eip;
+ unsigned short code_seg;
+ unsigned short opcode;
+ unsigned long operand;
+ unsigned short operand_seg;
+ unsigned short r3;
+ unsigned char regs[8][10];
+ };
static void
print_387_status (status, ep)
int bothstatus;
int top;
int fpreg;
-
+
bothstatus = ((status != 0) && (ep->status != 0));
- if (status != 0)
+ if (status != 0)
{
if (bothstatus)
printf_unfiltered ("u: ");
- print_387_status_word ((unsigned int)status);
+ print_387_status_word ((unsigned int) status);
}
-
- if (ep->status != 0)
+
+ if (ep->status != 0)
{
if (bothstatus)
printf_unfiltered ("e: ");
- print_387_status_word ((unsigned int)ep->status);
+ print_387_status_word ((unsigned int) ep->status);
}
-
- print_387_control_word ((unsigned int)ep->control);
+
+ print_387_control_word ((unsigned int) ep->control);
printf_unfiltered ("last exception: ");
- printf_unfiltered ("opcode %s; ", local_hex_string(ep->opcode));
- printf_unfiltered ("pc %s:", local_hex_string(ep->code_seg));
- printf_unfiltered ("%s; ", local_hex_string(ep->eip));
- printf_unfiltered ("operand %s", local_hex_string(ep->operand_seg));
- printf_unfiltered (":%s\n", local_hex_string(ep->operand));
+ printf_unfiltered ("opcode %s; ", local_hex_string (ep->opcode));
+ printf_unfiltered ("pc %s:", local_hex_string (ep->code_seg));
+ printf_unfiltered ("%s; ", local_hex_string (ep->eip));
+ printf_unfiltered ("operand %s", local_hex_string (ep->operand_seg));
+ printf_unfiltered (":%s\n", local_hex_string (ep->operand));
top = (ep->status >> 11) & 7;
-
+
printf_unfiltered ("regno tag msb lsb value\n");
- for (fpreg = 7; fpreg >= 0; fpreg--)
+ for (fpreg = 7; fpreg >= 0; fpreg--)
{
double val;
-
- printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg);
- switch ((ep->tag >> (fpreg * 2)) & 3)
+ printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg);
+
+ switch ((ep->tag >> (fpreg * 2)) & 3)
{
- case 0: printf_unfiltered ("valid "); break;
- case 1: printf_unfiltered ("zero "); break;
- case 2: printf_unfiltered ("trap "); break;
- case 3: printf_unfiltered ("empty "); break;
+ case 0:
+ printf_unfiltered ("valid ");
+ break;
+ case 1:
+ printf_unfiltered ("zero ");
+ break;
+ case 2:
+ printf_unfiltered ("trap ");
+ break;
+ case 3:
+ printf_unfiltered ("empty ");
+ break;
}
for (i = 9; i >= 0; i--)
printf_unfiltered ("%02x", ep->regs[fpreg][i]);
-
- floatformat_to_double(&floatformat_i387_ext, (char *) ep->regs[fpreg],
- &val);
+
+ floatformat_to_double (&floatformat_i387_ext, (char *) ep->regs[fpreg],
+ &val);
printf_unfiltered (" %g\n", val);
}
}
i386_float_info ()
{
- struct user u; /* just for address computations */
+ struct user u; /* just for address computations */
int i;
/* fpstate defined in <sys/user.h> */
struct fpstate *fpstatep;
char fpvalid;
unsigned int rounded_addr;
unsigned int rounded_size;
- /*extern int corechan;*/
+ /*extern int corechan; */
int skip;
extern int inferior_pid;
-
- uaddr = (char *)&U_FPSTATE(u) - (char *)&u;
- if (inferior_pid)
+
+ uaddr = (char *) &U_FPSTATE (u) - (char *) &u;
+ if (inferior_pid)
{
int *ip;
-
+
rounded_addr = uaddr & -sizeof (int);
rounded_size = (((uaddr + sizeof (struct fpstate)) - uaddr) +
sizeof (int) - 1) / sizeof (int);
skip = uaddr - rounded_addr;
-
- ip = (int *)buf;
- for (i = 0; i < rounded_size; i++)
+
+ ip = (int *) buf;
+ for (i = 0; i < rounded_size; i++)
{
- *ip++ = ptrace (PT_READ_U, inferior_pid, (caddr_t)rounded_addr, 0);
+ *ip++ = ptrace (PT_READ_U, inferior_pid, (caddr_t) rounded_addr, 0);
rounded_addr += sizeof (int);
}
- }
- else
+ }
+ else
{
- printf("float info: can't do a core file (yet)\n");
+ printf ("float info: can't do a core file (yet)\n");
return;
#if 0
if (lseek (corechan, uaddr, 0) < 0)
perror_with_name ("seek on core file");
- if (myread (corechan, buf, sizeof (struct fpstate)) < 0)
- perror_with_name ("read from core file");
+ if (myread (corechan, buf, sizeof (struct fpstate)) < 0)
+ perror_with_name ("read from core file");
skip = 0;
#endif
}
-
- print_387_status (0, (struct env387 *)buf);
+
+ print_387_status (0, (struct env387 *) buf);
+}
+
+int
+kernel_u_size ()
+{
+ return (sizeof (struct user));
}
#endif
projects / deliverable / binutils-gdb.git / blobdiff