/* Native-dependent code for BSD Unix running on i386's, for GDB.
- Copyright 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
+ Copyright 1988, 1989, 1991, 1992, 1994, 1995, 1996, 1998, 1999, 2000,
+ 2001 Free Software Foundation, Inc.
This file is part of GDB.
#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"
-#include "gdbcore.h" /* for registers_fetched() */
-
-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 */
place where ES is stored. */
int
-i386_register_u_addr (blockend, regnum)
- int blockend;
- int regnum;
+i386_register_u_addr (int blockend, int regnum)
{
/* The following condition is a kludge to get at the proper register map
depending upon the state of pcb_flag.
else
return (blockend + 4 * sregmap[regnum]);
}
-
-#endif /* !FETCH_INFERIOR_REGISTERS */
-
-#ifdef FLOAT_INFO
-#include "expression.h"
-#include "language.h" /* for local_hex_string */
-#include "floatformat.h"
-
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-
-#include <a.out.h>
-
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <sys/uio.h>
-#define curpcb Xcurpcb /* XXX avoid leaking declaration from pcb.h */
-#include <sys/user.h>
-#undef curpcb
-#include <sys/file.h>
-#include "gdb_stat.h"
-#include <sys/ptrace.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];
- };
-
-static void
-print_387_status (status, ep)
- unsigned short status;
- struct env387 *ep;
-{
- int i;
- int bothstatus;
- int top;
- int fpreg;
-
- bothstatus = ((status != 0) && (ep->status != 0));
- if (status != 0)
- {
- if (bothstatus)
- printf_unfiltered ("u: ");
- print_387_status_word ((unsigned int) status);
- }
-
- if (ep->status != 0)
- {
- if (bothstatus)
- printf_unfiltered ("e: ");
- print_387_status_word ((unsigned int) ep->status);
- }
-
- 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));
-
- top = (ep->status >> 11) & 7;
-
- printf_unfiltered ("regno tag msb lsb value\n");
- for (fpreg = 7; fpreg >= 0; fpreg--)
- {
- double val;
-
- 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;
- }
- for (i = 9; i >= 0; i--)
- printf_unfiltered ("%02x", ep->regs[fpreg][i]);
-
- 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 */
- int i;
- /* fpstate defined in <sys/user.h> */
- struct fpstate *fpstatep;
- char buf[sizeof (struct fpstate) + 2 * sizeof (int)];
- unsigned int uaddr;
- char fpvalid;
- unsigned int rounded_addr;
- unsigned int rounded_size;
- /*extern int corechan; */
- int skip;
- extern int 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++ = ptrace (PT_READ_U, inferior_pid, (caddr_t) rounded_addr, 0);
- rounded_addr += sizeof (int);
- }
- }
- else
- {
- 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");
- skip = 0;
-#endif
- }
-
- print_387_status (0, (struct env387 *) buf);
-}
-
-int
-kernel_u_size ()
-{
- return (sizeof (struct user));
-}
-
-#endif
projects / deliverable / binutils-gdb.git / blobdiff