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Diffstat (limited to 'gdb/i386b-nat.c')
| -rw-r--r-- | gdb/i386b-nat.c | 291 |
1 files changed, 0 insertions, 291 deletions
diff --git a/gdb/i386b-nat.c b/gdb/i386b-nat.c deleted file mode 100644 index be8fd4508d4..00000000000 --- a/gdb/i386b-nat.c +++ /dev/null @@ -1,291 +0,0 @@ -/* Native-dependent code for BSD Unix running on i386's, for GDB. - Copyright 1988, 1989, 1991, 1992, 1994, 1995, 1996, 1998, 1999, 2000, - 2001 Free Software Foundation, Inc. - - 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 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., 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" -#include "gdbcore.h" /* for registers_fetched() */ -#include "regcache.h" - -void -fetch_inferior_registers (int regno) -{ - struct reg inferior_registers; - - ptrace (PT_GETREGS, PIDGET (inferior_ptid), - (PTRACE_ARG3_TYPE) & inferior_registers, 0); - memcpy (®isters[REGISTER_BYTE (0)], &inferior_registers, 4 * NUM_REGS); - registers_fetched (); -} - -void -store_inferior_registers (int regno) -{ - struct reg inferior_registers; - - memcpy (&inferior_registers, ®isters[REGISTER_BYTE (0)], 4 * NUM_REGS); - ptrace (PT_SETREGS, PIDGET (inferior_ptid), - (PTRACE_ARG3_TYPE) & inferior_registers, 0); -} - -struct md_core -{ - struct reg intreg; - struct fpreg freg; -}; - -void -fetch_core_registers (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[] = -{ - tEAX, tECX, tEDX, tEBX, - tESP, tEBP, tESI, tEDI, - tEIP, tEFLAGS, tCS, tSS -}; - -#ifdef sEAX -static int sregmap[] = -{ - sEAX, sECX, sEDX, sEBX, - sESP, sEBP, sESI, sEDI, - sEIP, sEFLAGS, sCS, sSS -}; -#else /* No sEAX */ - -/* 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[] = -{ - tEAX, tECX, tEDX, tEBX, - tESP, tEBP, tESI, tEDI, - tEIP, tEFLAGS, tCS, tSS -}; -#endif /* No sEAX */ - -/* blockend is the value of u.u_ar0, and points to the - place where ES is stored. */ - -int -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. - The proper condition would be - if (u.u_pcb.pcb_flag & FM_TRAP) - but that would require a ptrace call here and wouldn't work - for corefiles. */ - - if (blockend < 0x1fcc) - return (blockend + 4 * tregmap[regnum]); - 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 (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 (void) -{ - 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; - - uaddr = (char *) &U_FPSTATE (u) - (char *) &u; - if (! ptid_equal (inferior_ptid, null_ptid)) - { - 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, PIDGET (inferior_ptid), - (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 (void) -{ - return (sizeof (struct user)); -} - -#endif |