1991-03-29 00:28:29 +08:00
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/* Low level MIPS interface to ptrace, for GDB when running under Unix.
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1992-02-28 11:26:45 +08:00
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Copyright 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
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1991-03-29 00:28:29 +08:00
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Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
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and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
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This file is part of GDB.
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1991-06-04 16:31:55 +09:00
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This program is free software; you can redistribute it and/or modify
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1991-03-29 00:28:29 +08:00
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it under the terms of the GNU General Public License as published by
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1991-06-04 16:31:55 +09:00
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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1991-03-29 00:28:29 +08:00
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1991-06-04 16:31:55 +09:00
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This program is distributed in the hope that it will be useful,
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1991-03-29 00:28:29 +08:00
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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1991-06-04 16:31:55 +09:00
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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1991-03-29 00:28:29 +08:00
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1992-03-04 07:26:26 +08:00
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#include "defs.h"
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1991-08-31 09:31:30 +09:00
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#ifdef sgi
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#include <sys/inst.h>
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#else
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1991-03-29 00:28:29 +08:00
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#include <mips/inst.h>
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1991-08-31 09:31:30 +09:00
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#endif
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1991-03-29 00:28:29 +08:00
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#include "frame.h"
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#include "inferior.h"
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#include "symtab.h"
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#include "value.h"
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#ifdef USG
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#include <sys/types.h>
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#endif
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#include <sys/param.h>
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#include <sys/dir.h>
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#include <signal.h>
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#include <sys/ioctl.h>
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/* #include <fcntl.h> Can we live without this? */
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#include "gdbcore.h"
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#include <sys/user.h> /* After a.out.h */
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#include <sys/file.h>
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#include <sys/stat.h>
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1991-08-31 09:31:30 +09:00
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/* For now we stub this out; sgi format is super-hairy (and completely
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different in the new release) */
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#ifdef sgi
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void
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fetch_core_registers ()
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{
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return;
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}
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1992-02-22 09:46:16 +08:00
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/* ARGSUSED */
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1991-08-31 09:31:30 +09:00
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void
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1992-02-22 09:46:16 +08:00
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fetch_inferior_registers (regno)
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int regno;
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1991-08-31 09:31:30 +09:00
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{
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return;
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}
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1992-02-22 09:46:16 +08:00
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/* ARGSUSED */
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void
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1991-08-31 09:31:30 +09:00
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store_inferior_registers (regno)
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int regno;
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{
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return;
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}
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#else
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* infrun.c: Fixed typo in comment.
* utils.c: All the v*fprintf emulation is now in libiberty,
so we can get rid of some junk.
* xm-sun3os4.h, xm-sun4os4.h, xconfig/decstation, xconfig/i386sco,
xconfig/sun3os4, xconfig/sun4os4: Don`t need HAVE_STRSTR any more.
* m68k-pinsn.c (print_insn_arg): Support BB/BW/BL
type operands, as used by branch instructions.
* gmalloc.c: Fix prototype of memcpy.
* elfread.c: Comment out register_addr, since it conflicts
with the one in coredep.c.
* buildsym.h: Remove extern declarations of two functions
that are really static in buildsym.c.
* tm-mips.h: Add symbolic names for more registers.
* mips-xdep.c (store_inferior_registers): Use new register names.
* xm-mips.h: Simplify REGISTER_U_ADDR, since it is now
only used for core files, not ptrace. Therefore,
the KERNEL_U_ADDR hack is no longer needed.
The mapping to ptrace number is now in in mips-xdep.c.
* mips-xdep.c: Define REGISTER_PTRACE_ADDR (using the
mapping from the old REGISTER_U_ADDR), and use it
in {fetch,store}_inferior_registers.
* mipsread.c: Rename #include ecoff.h to new name coff-mips.h.
* mips-tdep.c (mips_push_dummy_frame, mips_pop_frame):
Save/restore FP regs correctly (?).
* dbxread.c: Remove duplicate define_symbol and type_synonym_name
(these had been previously moved to buildsym.c).
Hence, define_symbol becomes extern instead of static.
* buildsym.c (read_struct_type): Comment out bogus handling
of C++ operator methods. Minor hacking of reading of class
contexts. Make define_symbol non-static, so dbxread.c can call it.
1991-11-05 07:15:31 +08:00
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/* Map gdb internal register number to ptrace address. */
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#define REGISTER_PTRACE_ADDR(regno) \
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(regno < 32 ? regno \
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: regno == PC_REGNUM ? 96 \
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: regno == CAUSE_REGNUM ? 97 \
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: regno == HI_REGNUM ? 98 \
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: regno == LO_REGNUM ? 99 \
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: regno == FCRCS_REGNUM ? 100 \
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: regno == FCRIR_REGNUM ? 101 \
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: regno >= FP0_REGNUM ? regno - (FP0_REGNUM-32)\
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: 0)
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1991-03-29 00:28:29 +08:00
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/* Get all registers from the inferior */
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void
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1992-02-22 09:46:16 +08:00
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fetch_inferior_registers (regno)
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int regno;
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1991-03-29 00:28:29 +08:00
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{
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register unsigned int regaddr;
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char buf[MAX_REGISTER_RAW_SIZE];
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register int i;
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registers_fetched ();
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for (regno = 1; regno < NUM_REGS; regno++)
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{
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* infrun.c: Fixed typo in comment.
* utils.c: All the v*fprintf emulation is now in libiberty,
so we can get rid of some junk.
* xm-sun3os4.h, xm-sun4os4.h, xconfig/decstation, xconfig/i386sco,
xconfig/sun3os4, xconfig/sun4os4: Don`t need HAVE_STRSTR any more.
* m68k-pinsn.c (print_insn_arg): Support BB/BW/BL
type operands, as used by branch instructions.
* gmalloc.c: Fix prototype of memcpy.
* elfread.c: Comment out register_addr, since it conflicts
with the one in coredep.c.
* buildsym.h: Remove extern declarations of two functions
that are really static in buildsym.c.
* tm-mips.h: Add symbolic names for more registers.
* mips-xdep.c (store_inferior_registers): Use new register names.
* xm-mips.h: Simplify REGISTER_U_ADDR, since it is now
only used for core files, not ptrace. Therefore,
the KERNEL_U_ADDR hack is no longer needed.
The mapping to ptrace number is now in in mips-xdep.c.
* mips-xdep.c: Define REGISTER_PTRACE_ADDR (using the
mapping from the old REGISTER_U_ADDR), and use it
in {fetch,store}_inferior_registers.
* mipsread.c: Rename #include ecoff.h to new name coff-mips.h.
* mips-tdep.c (mips_push_dummy_frame, mips_pop_frame):
Save/restore FP regs correctly (?).
* dbxread.c: Remove duplicate define_symbol and type_synonym_name
(these had been previously moved to buildsym.c).
Hence, define_symbol becomes extern instead of static.
* buildsym.c (read_struct_type): Comment out bogus handling
of C++ operator methods. Minor hacking of reading of class
contexts. Make define_symbol non-static, so dbxread.c can call it.
1991-11-05 07:15:31 +08:00
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regaddr = REGISTER_PTRACE_ADDR (regno);
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1991-03-29 00:28:29 +08:00
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for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
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{
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*(int *) &buf[i] = ptrace (3, inferior_pid, regaddr, 0);
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regaddr += sizeof (int);
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}
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supply_register (regno, buf);
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}
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}
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/* Store our register values back into the inferior.
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If REGNO is -1, do this for all registers.
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Otherwise, REGNO specifies which register (so we can save time). */
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1991-08-31 09:31:30 +09:00
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void
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1991-03-29 00:28:29 +08:00
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store_inferior_registers (regno)
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int regno;
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1991-08-31 09:31:30 +09:00
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{
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1991-03-29 00:28:29 +08:00
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register unsigned int regaddr;
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char buf[80];
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if (regno == 0)
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return;
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if (regno > 0)
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{
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* infrun.c: Fixed typo in comment.
* utils.c: All the v*fprintf emulation is now in libiberty,
so we can get rid of some junk.
* xm-sun3os4.h, xm-sun4os4.h, xconfig/decstation, xconfig/i386sco,
xconfig/sun3os4, xconfig/sun4os4: Don`t need HAVE_STRSTR any more.
* m68k-pinsn.c (print_insn_arg): Support BB/BW/BL
type operands, as used by branch instructions.
* gmalloc.c: Fix prototype of memcpy.
* elfread.c: Comment out register_addr, since it conflicts
with the one in coredep.c.
* buildsym.h: Remove extern declarations of two functions
that are really static in buildsym.c.
* tm-mips.h: Add symbolic names for more registers.
* mips-xdep.c (store_inferior_registers): Use new register names.
* xm-mips.h: Simplify REGISTER_U_ADDR, since it is now
only used for core files, not ptrace. Therefore,
the KERNEL_U_ADDR hack is no longer needed.
The mapping to ptrace number is now in in mips-xdep.c.
* mips-xdep.c: Define REGISTER_PTRACE_ADDR (using the
mapping from the old REGISTER_U_ADDR), and use it
in {fetch,store}_inferior_registers.
* mipsread.c: Rename #include ecoff.h to new name coff-mips.h.
* mips-tdep.c (mips_push_dummy_frame, mips_pop_frame):
Save/restore FP regs correctly (?).
* dbxread.c: Remove duplicate define_symbol and type_synonym_name
(these had been previously moved to buildsym.c).
Hence, define_symbol becomes extern instead of static.
* buildsym.c (read_struct_type): Comment out bogus handling
of C++ operator methods. Minor hacking of reading of class
contexts. Make define_symbol non-static, so dbxread.c can call it.
1991-11-05 07:15:31 +08:00
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regaddr = REGISTER_PTRACE_ADDR (regno);
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1991-03-29 00:28:29 +08:00
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errno = 0;
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ptrace (6, inferior_pid, regaddr, read_register (regno));
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if (errno != 0)
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{
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sprintf (buf, "writing register number %d", regno);
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perror_with_name (buf);
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}
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}
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else
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{
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* infrun.c: Fixed typo in comment.
* utils.c: All the v*fprintf emulation is now in libiberty,
so we can get rid of some junk.
* xm-sun3os4.h, xm-sun4os4.h, xconfig/decstation, xconfig/i386sco,
xconfig/sun3os4, xconfig/sun4os4: Don`t need HAVE_STRSTR any more.
* m68k-pinsn.c (print_insn_arg): Support BB/BW/BL
type operands, as used by branch instructions.
* gmalloc.c: Fix prototype of memcpy.
* elfread.c: Comment out register_addr, since it conflicts
with the one in coredep.c.
* buildsym.h: Remove extern declarations of two functions
that are really static in buildsym.c.
* tm-mips.h: Add symbolic names for more registers.
* mips-xdep.c (store_inferior_registers): Use new register names.
* xm-mips.h: Simplify REGISTER_U_ADDR, since it is now
only used for core files, not ptrace. Therefore,
the KERNEL_U_ADDR hack is no longer needed.
The mapping to ptrace number is now in in mips-xdep.c.
* mips-xdep.c: Define REGISTER_PTRACE_ADDR (using the
mapping from the old REGISTER_U_ADDR), and use it
in {fetch,store}_inferior_registers.
* mipsread.c: Rename #include ecoff.h to new name coff-mips.h.
* mips-tdep.c (mips_push_dummy_frame, mips_pop_frame):
Save/restore FP regs correctly (?).
* dbxread.c: Remove duplicate define_symbol and type_synonym_name
(these had been previously moved to buildsym.c).
Hence, define_symbol becomes extern instead of static.
* buildsym.c (read_struct_type): Comment out bogus handling
of C++ operator methods. Minor hacking of reading of class
contexts. Make define_symbol non-static, so dbxread.c can call it.
1991-11-05 07:15:31 +08:00
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for (regno = 0; regno < NUM_REGS; regno++)
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1991-03-29 00:28:29 +08:00
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{
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* infrun.c: Fixed typo in comment.
* utils.c: All the v*fprintf emulation is now in libiberty,
so we can get rid of some junk.
* xm-sun3os4.h, xm-sun4os4.h, xconfig/decstation, xconfig/i386sco,
xconfig/sun3os4, xconfig/sun4os4: Don`t need HAVE_STRSTR any more.
* m68k-pinsn.c (print_insn_arg): Support BB/BW/BL
type operands, as used by branch instructions.
* gmalloc.c: Fix prototype of memcpy.
* elfread.c: Comment out register_addr, since it conflicts
with the one in coredep.c.
* buildsym.h: Remove extern declarations of two functions
that are really static in buildsym.c.
* tm-mips.h: Add symbolic names for more registers.
* mips-xdep.c (store_inferior_registers): Use new register names.
* xm-mips.h: Simplify REGISTER_U_ADDR, since it is now
only used for core files, not ptrace. Therefore,
the KERNEL_U_ADDR hack is no longer needed.
The mapping to ptrace number is now in in mips-xdep.c.
* mips-xdep.c: Define REGISTER_PTRACE_ADDR (using the
mapping from the old REGISTER_U_ADDR), and use it
in {fetch,store}_inferior_registers.
* mipsread.c: Rename #include ecoff.h to new name coff-mips.h.
* mips-tdep.c (mips_push_dummy_frame, mips_pop_frame):
Save/restore FP regs correctly (?).
* dbxread.c: Remove duplicate define_symbol and type_synonym_name
(these had been previously moved to buildsym.c).
Hence, define_symbol becomes extern instead of static.
* buildsym.c (read_struct_type): Comment out bogus handling
of C++ operator methods. Minor hacking of reading of class
contexts. Make define_symbol non-static, so dbxread.c can call it.
1991-11-05 07:15:31 +08:00
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if (regno == ZERO_REGNUM || regno == PS_REGNUM
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|| regno == BADVADDR_REGNUM || regno == CAUSE_REGNUM
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1992-02-28 11:26:45 +08:00
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|| regno == FCRIR_REGNUM || regno == FP_REGNUM
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|| (regno >= FIRST_EMBED_REGNUM && regno <= LAST_EMBED_REGNUM))
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1991-03-29 00:28:29 +08:00
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continue;
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regaddr = register_addr (regno, 1);
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errno = 0;
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ptrace (6, inferior_pid, regaddr, read_register (regno));
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if (errno != 0)
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{
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sprintf (buf, "writing all regs, number %d", regno);
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perror_with_name (buf);
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}
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}
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}
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}
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1991-08-31 09:31:30 +09:00
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#endif /* sgi */
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1991-04-19 12:22:12 +09:00
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#if 0
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1991-03-29 00:28:29 +08:00
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void
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fetch_core_registers ()
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{
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register int regno;
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int val;
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for (regno = 1; regno < NUM_REGS; regno++) {
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char buf[MAX_REGISTER_RAW_SIZE];
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val = bfd_seek (core_bfd, register_addr (regno, 0));
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if (val < 0 || (val = bfd_read (core_bfd, buf, sizeof buf)) < 0) {
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char buffer[50];
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strcpy (buffer, "Reading register ");
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strcat (buffer, reg_names[regno]);
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perror_with_name (buffer);
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}
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supply_register (regno, buf);
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}
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}
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1991-04-19 12:22:12 +09:00
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#endif /* 0 */
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