Adding support for Motorola mvme88k.

6 files changed, 532 insertions, 0 deletions

diff --git a/gnu/usr.bin/binutils/gdb/config/m88k/nm-obsd.h b/gnu/usr.bin/binutils/gdb/config/m88k/nm-obsd.h
new file mode 100644
index 00000000000..fa1bc79a8ef
--- /dev/null
+++ b/gnu/usr.bin/binutils/gdb/config/m88k/nm-obsd.h
@@ -0,0 +1,22 @@
+/* Native-dependent definitions for Motorola m88k running OpenBSD, for GDB.
+   Copyright 1996 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.  */
+
+/* Get generic OpenBSD native definitions. */
+#include "m88k/nm-m88k.h"
+#include "nm-obsd.h"
diff --git a/gnu/usr.bin/binutils/gdb/config/m88k/tm-obsd.h b/gnu/usr.bin/binutils/gdb/config/m88k/tm-obsd.h
new file mode 100644
index 00000000000..bbca91d6318
--- /dev/null
+++ b/gnu/usr.bin/binutils/gdb/config/m88k/tm-obsd.h
@@ -0,0 +1,43 @@
+/* Macro definitions for m68k running under OpenBSD.
+   Copyright 1994 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.  */
+
+#ifndef TM_OBSD_H
+#define TM_OBSD_H
+
+
+/* For Net- and OpenBSD, sigtramp is 32 bytes before STACK_END_ADDR,
+   but we don't know where that is until run-time!  */
+/*
+extern int nbsd_in_sigtramp(CORE_ADDR);
+#define IN_SIGTRAMP(pc, name) nbsd_in_sigtramp (pc)
+*/
+
+/* Generic definitions.  */
+#include "m88k/tm-m88k.h"
+#include "tm-obsd.h"
+
+/* Offset to saved PC in sigcontext, from <m68k/signal.h>.  */
+#define SIGCONTEXT_PC_OFFSET 136
+
+/* Our kernel shifts the instruction pointers */
+#undef SHIFT_INST_REGS() 
+#define SHIFT_INST_REGS() 
+
+
+#endif /* TM_OBSD_H */
diff --git a/gnu/usr.bin/binutils/gdb/config/m88k/xm-obsd.h b/gnu/usr.bin/binutils/gdb/config/m88k/xm-obsd.h
new file mode 100644
index 00000000000..8b5da4e70c2
--- /dev/null
+++ b/gnu/usr.bin/binutils/gdb/config/m88k/xm-obsd.h
@@ -0,0 +1,22 @@
+/* Parameters for execution on a Motorola m68k running OpenBSD, for GDB.
+   Copyright 1996 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.  */
+
+/* Get generic OpenBSD host definitions. */
+#include "m88k/xm-m88k.h"
+#include "xm-obsd.h"
diff --git a/gnu/usr.bin/binutils/gdb/configure.host b/gnu/usr.bin/binutils/gdb/configure.host
index af18d910db0..d027076ec7e 100644
--- a/gnu/usr.bin/binutils/gdb/configure.host
+++ b/gnu/usr.bin/binutils/gdb/configure.host
@@ -104,6 +104,7 @@ m68*-sun-*)		gdb_host=sun3os4 ;;
 m88*-harris-cxux*)	gdb_host=cxux ;;
 m88*-motorola-sysv4*)	gdb_host=delta88v4 ;;
 m88*-motorola-sysv*)	gdb_host=delta88 ;;
+m88*-*-openbsd*)	gdb_host=obsd ;;
 m88*-*-mach3*)		gdb_host=mach3 ;;
 m88*-*-*)		gdb_host=m88k ;;
 
diff --git a/gnu/usr.bin/binutils/gdb/configure.tgt b/gnu/usr.bin/binutils/gdb/configure.tgt
index 721d4ecda4d..fe4744a822d 100644
--- a/gnu/usr.bin/binutils/gdb/configure.tgt
+++ b/gnu/usr.bin/binutils/gdb/configure.tgt
@@ -145,6 +145,7 @@ m88*-harris-cxux*)	gdb_target=cxux ;;
 m88*-motorola-sysv4*)	gdb_target=delta88v4 ;;
 m88*-*-mach3*)		gdb_target=mach3 ;;
 m88*-motorola-*)	gdb_target=delta88 ;;
+m88*-*-openbsd*)	gdb_target=obsd ;;
 m88*-*-*)		gdb_target=m88k ;;
 
 mips64*-big-*)		gdb_target=bigmips64 ;;
diff --git a/gnu/usr.bin/binutils/gdb/m88knbsd-nat.c b/gnu/usr.bin/binutils/gdb/m88knbsd-nat.c
new file mode 100644
index 00000000000..ebafbab68a9
--- /dev/null
+++ b/gnu/usr.bin/binutils/gdb/m88knbsd-nat.c
@@ -0,0 +1,443 @@
+/* Native-dependent Motorola 88xxx support for GDB, the GNU Debugger.
+   Copyright 1988, 1990, 1991, 1992 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"
+#include "frame.h"
+#include "inferior.h"
+
+#include <machine/reg.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <signal.h>
+#include "gdbcore.h"
+#include <sys/user.h>
+
+#ifndef USER			/* added to support BCS ptrace_user */
+#define USER user
+#endif
+#include <sys/ioctl.h>
+#include <sys/ptrace.h>
+#include <fcntl.h>
+#include <sys/file.h>
+#include "gdb_stat.h"
+
+#include "symtab.h"
+#include "setjmp.h"
+#include "value.h"
+
+#ifdef DELTA88
+#include <sys/ptrace.h>
+
+struct	user {
+	struct	pcb u_pcb;
+
+	struct	sigacts u_sigacts;	/* p_sigacts points here (use it!) */
+	struct	pstats u_stats;		/* p_stats points here (use it!) */
+
+	/*
+	 * Remaining fields only for core dump and/or ptrace--
+	 * not valid at other times!
+	 */
+	struct	kinfo_proc u_kproc;	/* proc + eproc */
+	struct	md_coredump u_md;	/* machine dependent glop */
+};
+
+/* define offsets to the pc instruction offsets in ptrace_user struct */
+#define SXIP_OFFSET ((char *)&u.pt_sigframe.sig_sxip - (char *)&u)
+#define SNIP_OFFSET ((char *)&u.pt_sigframe.sig_snip - (char *)&u)
+#define SFIP_OFFSET ((char *)&u.pt_sigframe.sig_sfip - (char *)&u)
+#else
+/* define offsets to the pc instruction offsets in ptrace_user struct */
+#define SXIP_OFFSET ((char *)&u.u_pcb.user_state.sxip - (char *)&u)
+#define SNIP_OFFSET ((char *)&u.u_pcb.user_state.snip - (char *)&u)
+#define SFIP_OFFSET ((char *)&u.u_pcb.user_state.sfip - (char *)&u)
+#endif
+
+extern int have_symbol_file_p();
+
+extern jmp_buf stack_jmp;
+
+extern int errno;
+extern char registers[REGISTER_BYTES];
+
+#define PRT2(p)  printf("%s()\n", p)
+#define PRT(p)
+#if 0
+void
+fetch_inferior_registers (regno)
+     int regno;		/* Original value discarded */
+{
+  register unsigned int regaddr;
+  char buf[MAX_REGISTER_RAW_SIZE];
+  register int i;
+
+  struct USER u;
+  unsigned int offset;
+
+  PRT ("fetch_inferior_registers");
+  offset = (char *) &u.u_pcb.user_state.r[0] - (char *) &u; 
+  regaddr = offset; /* byte offset to r0;*/
+
+/*  offset = ptrace (3, inferior_pid, (PTRACE_ARG3_TYPE) offset, 0) - KERNEL_U_ADDR; */
+  for (regno = 0; regno < NUM_REGS; regno++)
+    {
+      /*regaddr = register_addr (regno, offset);*/
+	/* 88k enhancement  */
+        
+      for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
+ 	{
+ 	  *(int *) &buf[i] = ptrace (3, inferior_pid,
+				     (PTRACE_ARG3_TYPE) regaddr, 0);
+ 	  regaddr += sizeof (int);
+ 	}
+      supply_register (regno, buf);
+    }
+    /* now load up registers 36 - 38; special pc registers */
+    *(int *) &buf[0] = ptrace (3, inferior_pid,
+			       (PTRACE_ARG3_TYPE) SXIP_OFFSET ,0);
+    supply_register (SXIP_REGNUM, buf);
+    *(int *) &buf[0] = ptrace (3, inferior_pid,
+			       (PTRACE_ARG3_TYPE) SNIP_OFFSET,0);
+    supply_register (SNIP_REGNUM, buf);
+    *(int *) &buf[0] = ptrace (3, inferior_pid,
+			       (PTRACE_ARG3_TYPE) SFIP_OFFSET,0);
+    supply_register (SFIP_REGNUM, buf);
+}
+
+/* Store our register values back into the inferior.
+   If REGNO is -1, do this for all registers.
+   Otherwise, REGNO specifies which register (so we can save time).  */
+
+void
+store_inferior_registers (regno)
+     int regno;
+{
+  register unsigned int regaddr;
+  char buf[80];
+
+  struct USER u;
+
+  unsigned int offset = (char *) &u.u_pcb.user_state.r[0] - (char *) &u;
+  PRT ("store_inferior_registers");
+
+  regaddr = offset;
+
+  /* Don't try to deal with EXIP_REGNUM or ENIP_REGNUM, because I think either
+     svr3 doesn't run on an 88110, or the kernel isolates the different (not
+     completely sure this is true, but seems to be.  */
+  if (regno >= 0)
+    {
+      /*      regaddr = register_addr (regno, offset); */
+      if (regno < PC_REGNUM)
+	{ 
+	  regaddr = offset + regno * sizeof (int);
+	  errno = 0;
+	  ptrace (6, inferior_pid,
+		  (PTRACE_ARG3_TYPE) regaddr, read_register (regno));
+	  if (errno != 0)
+	    {
+	      sprintf (buf, "writing register number %d", regno);
+	      perror_with_name (buf);
+	    }
+	}
+      else if (regno == SXIP_REGNUM)
+	ptrace (6, inferior_pid,
+		(PTRACE_ARG3_TYPE) SXIP_OFFSET, read_register(regno));
+      else if (regno == SNIP_REGNUM)
+	ptrace (6, inferior_pid,
+		(PTRACE_ARG3_TYPE) SNIP_OFFSET, read_register(regno));
+      else if (regno == SFIP_REGNUM)
+	ptrace (6, inferior_pid,
+		(PTRACE_ARG3_TYPE) SFIP_OFFSET, read_register(regno));
+      else
+	printf_unfiltered ("Bad register number for store_inferior routine\n");
+    }
+  else
+    { 
+      for (regno = 0; regno < PC_REGNUM; regno++)
+	{
+	  /*      regaddr = register_addr (regno, offset); */
+	  errno = 0;
+	  regaddr = offset + regno * sizeof (int);
+	  ptrace (6, inferior_pid,
+		  (PTRACE_ARG3_TYPE) regaddr, read_register (regno));
+	  if (errno != 0)
+	    {
+	      sprintf (buf, "writing register number %d", regno);
+	      perror_with_name (buf);
+	    }
+	}
+      ptrace (6, inferior_pid,
+	      (PTRACE_ARG3_TYPE) SXIP_OFFSET,read_register(SXIP_REGNUM));
+      ptrace (6, inferior_pid,
+	      (PTRACE_ARG3_TYPE) SNIP_OFFSET,read_register(SNIP_REGNUM));
+      ptrace (6, inferior_pid,
+	      (PTRACE_ARG3_TYPE) SFIP_OFFSET,read_register(SFIP_REGNUM));
+    }
+}
+
+#else
+
+void
+fetch_inferior_registers (regno)
+     int regno;
+{
+  struct reg inferior_registers;
+  struct fpreg inferior_fp_registers;
+
+  PRT2 ("fetch_inferior_registers");
+
+  ptrace (PT_GETREGS, inferior_pid,
+	  (PTRACE_ARG3_TYPE) &inferior_registers, 0);
+  memcpy (&registers[REGISTER_BYTE (0)], &inferior_registers,
+	  sizeof(inferior_registers));
+
+  ptrace (PT_GETFPREGS, inferior_pid,
+	  (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
+  memcpy (&registers[REGISTER_BYTE (sizeof(inferior_registers))], &inferior_fp_registers,
+	  sizeof(inferior_fp_registers));
+  registers_fetched ();
+}
+
+void
+store_inferior_registers (regno)
+     int regno;
+{
+  struct reg inferior_registers;
+  struct fpreg inferior_fp_registers;
+  PRT2 ("store_inferior_registers");
+
+  memcpy (&inferior_registers, &registers[REGISTER_BYTE (0)],
+	  sizeof(inferior_registers));
+  ptrace (PT_SETREGS, inferior_pid,
+	  (PTRACE_ARG3_TYPE) &inferior_registers, 0);
+
+  memcpy (&inferior_fp_registers, &registers[REGISTER_BYTE (sizeof(inferior_registers))],
+	  sizeof(inferior_fp_registers));
+  ptrace (PT_SETFPREGS, inferior_pid,
+	  (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
+}
+
+#endif
+
+/* blockend is the address of the end of the user structure */
+m88k_register_u_addr (blockend, regnum)
+{
+  struct USER u;
+
+  int ustart = blockend - sizeof (struct USER);
+  PRT2 ("m88k_register_u_addr");
+  switch (regnum)
+    {
+    case 0:
+    case 1:
+    case 2:
+    case 3:
+    case 4:
+    case 5:
+    case 6:
+    case 7:
+    case 8:
+    case 9:
+    case 10:
+    case 11:
+    case 12:
+    case 13:
+    case 14:
+    case 15:
+    case 16:
+    case 17:
+    case 18:
+    case 19:
+    case 20:
+    case 21:
+    case 22:
+    case 23:
+    case 24:
+    case 25:
+    case 26:
+    case 27:
+    case 28:
+    case 29:
+    case 30:
+    case 31:
+      return (ustart + ((int) &u.u_pcb.user_state.r[0] - (int) &u) + 
+        REGISTER_SIZE * regnum);
+    case PSR_REGNUM:  return (ustart + ((int) &u.u_pcb.user_state.epsr - (int) &u));
+    case FPSR_REGNUM: return (ustart + ((int) &u.u_pcb.user_state.fpsr - (int) &u));
+    case FPCR_REGNUM: return (ustart + ((int) &u.u_pcb.user_state.fpcr - (int) &u));
+    case SXIP_REGNUM: return (ustart + ((int) &u.u_pcb.user_state.sxip - (int) &u)); 
+    case SNIP_REGNUM: return (ustart + ((int) &u.u_pcb.user_state.snip - (int) &u)); 
+    case SFIP_REGNUM: return (ustart + ((int) &u.u_pcb.user_state.sfip - (int) &u)); 
+    default: 
+	if (regnum < NUM_REGS)
+	    /* The register is one of those which is not defined...
+	       give it zero */
+	    return (ustart + ((int) &u.u_pcb.user_state.r[0] - (int) &u));
+	else
+	    return (blockend + REGISTER_SIZE * regnum);
+    }
+}
+
+#ifdef USE_PROC_FS
+
+#include <sys/procfs.h>
+
+/*  Given a pointer to a general register set in /proc format (gregset_t *),
+    unpack the register contents and supply them as gdb's idea of the current
+    register values. */
+
+void
+supply_gregset (gregsetp)
+     gregset_t *gregsetp;
+{
+    register int regi;
+    register greg_t *regp = (greg_t *) gregsetp;
+
+    PRT ("supply_gregset");
+    for (regi=0; regi <= SP_REGNUM; regi++)
+	supply_register (regi, (char *) (regp + regi));
+
+    supply_register (SXIP_REGNUM, (char *) (regp + R_XIP));
+    supply_register (SNIP_REGNUM, (char *) (regp + R_NIP));
+    supply_register (SFIP_REGNUM, (char *) (regp + R_FIP));
+    supply_register (PSR_REGNUM, (char *) (regp + R_PSR));
+    supply_register (FPSR_REGNUM, (char *) (regp + R_FPSR));
+    supply_register (FPCR_REGNUM, (char *) (regp + R_FPCR));
+}
+
+void
+fill_gregset (gregsetp, regno)
+     gregset_t *gregsetp;
+     int regno;
+{
+    int regi;
+    register greg_t *regp = (greg_t *) gregsetp;
+    extern char registers[];
+    PRT ("fill_gregset");
+
+    for (regi = 0 ; regi <= R_R31 ; regi++)
+	if ((regno == -1) || (regno == regi))
+	    *(regp + regi) = *(int *) &registers[REGISTER_BYTE(regi)];
+
+    if ((regno == -1) || (regno == SXIP_REGNUM))
+	*(regp + R_XIP) = *(int *) &registers[REGISTER_BYTE(SXIP_REGNUM)];
+    if ((regno == -1) || (regno == SNIP_REGNUM))
+	*(regp + R_NIP) = *(int *) &registers[REGISTER_BYTE(SNIP_REGNUM)];
+    if ((regno == -1) || (regno == SFIP_REGNUM))
+	*(regp + R_FIP) = *(int *) &registers[REGISTER_BYTE(SFIP_REGNUM)];
+    if ((regno == -1) || (regno == PSR_REGNUM))
+	*(regp + R_PSR) = *(int *) &registers[REGISTER_BYTE(PSR_REGNUM)];
+    if ((regno == -1) || (regno == FPSR_REGNUM))
+	*(regp + R_FPSR) = *(int *) &registers[REGISTER_BYTE(FPSR_REGNUM)];
+    if ((regno == -1) || (regno == FPCR_REGNUM))
+	*(regp + R_FPCR) = *(int *) &registers[REGISTER_BYTE(FPCR_REGNUM)];
+}
+
+#endif /* USE_PROC_FS */
+
+#ifdef	FETCH_KCORE_REGISTERS
+/*
+ * Get registers from a kernel crash dump or live kernel.
+ * Called by kcore-nbsd.c:get_kcore_registers().
+ */
+void
+fetch_kcore_registers (pcb)
+     struct pcb *pcb;
+{
+  int i, *ip, tmp=0;
+
+  PRT ("fetch_kcore_registers");
+  /* r0-r31 */
+  ip = &pcb->user_state.r[0];
+  for (i = 0; i < 32; i++, ip++)
+    supply_register(i, (char *)ip);
+
+  /* PSR (sr) */
+  tmp = pcb->user_state.epsr & 0xFFFF;
+  supply_register(PSR_REGNUM, (char *)&tmp);
+
+  /* PC (use return address) */
+  tmp = pcb->user_state.sxip;
+  if (target_read_memory(tmp, (char *)&tmp, sizeof(tmp)))
+    tmp = 0;
+  supply_register(PC_REGNUM, (char *)&tmp);
+
+  /* The kernel does not use the FPU, so ignore it. */
+  registers_fetched ();
+}
+#endif	/* FETCH_KCORE_REGISTERS */
+
+/* XXX - Add this to machine/regs.h instead? */
+struct md_core {
+  struct reg intreg;
+  struct fpreg freg;
+};
+
+static void
+fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
+     char *core_reg_sect;
+     unsigned core_reg_size;
+     int which;
+     unsigned int reg_addr;	/* Unused in this version */
+{
+  struct md_core *core_reg;
+
+  PRT2 ("fetch_core_registers");
+  core_reg = (struct md_core *)core_reg_sect;
+
+  /* We get everything from the .reg section. */
+  if (which != 0)
+    return;
+
+  if (core_reg_size < sizeof(*core_reg)) {
+    fprintf_unfiltered (gdb_stderr, "Couldn't read regs from core file\n");
+    return;
+  }
+
+  /* Integer registers */
+  memcpy(&registers[REGISTER_BYTE (0)],
+	 &core_reg->intreg, sizeof(struct reg));
+  /* Floating point registers */
+
+  memcpy(&registers[REGISTER_BYTE (sizeof(struct reg))],
+	 &core_reg->freg, sizeof(struct fpreg));
+
+  registers_fetched ();
+}
+
+/* Register that we are able to handle m88knbsd core file formats.
+   FIXME: is this really bfd_target_unknown_flavour? 
+   Yes, the netbsd core file is really bfd_target_unknown_flavour... */
+
+static struct core_fns nat_core_fns =
+{
+  bfd_target_unknown_flavour,
+  fetch_core_registers,
+  NULL
+};
+
+void
+_initialize_m88knbsd_nat ()
+{
+  PRT ("_initialize_m88knbsd_nat");
+  add_core_fns (&nat_core_fns);
+}
+