2001-12-17 Fernando Nasser <fnasser@redhat.com>

From Richard Earnshaw <rearnsha@arm.com>:
        * config/arm/nbsd.mh, config/arm/nbsd.mt, config/arm/tm-nbsd.h,
        config/arm/nm-nbsd.h, config/arm/xm-nbsd.h: New files.
        * armbsd-nat.c: New file.
        * Makefile.in: Build it.
        * configure.host, configure.tgt: Support NetBSD/arm.

gdb/Makefile.in

@@ -1177,7 +1177,7 @@ unexport CHILLFLAGS CHILL_LIB CHILL_FOR_TARGET :
 ALLDEPFILES = 29k-share/udi/udip2soc.c 29k-share/udi/udr.c \
 	29k-share/udi/udi2go32.c \
 	a29k-tdep.c a68v-nat.c alpha-nat.c alpha-tdep.c \
-	arm-linux-nat.c arm-linux-tdep.c arm-tdep.c \
+	arm-linux-nat.c arm-linux-tdep.c arm-tdep.c armbsd-nat.c \
 	coff-solib.c \
 	core-sol2.c core-regset.c core-aout.c corelow.c \
 	dcache.c delta68-nat.c dpx2-nat.c dstread.c exec.c fork-child.c \
@@ -1258,6 +1258,8 @@ arm-linux-tdep.o: arm-linux-tdep.c $(defs_h) $(target_h) $(value_h) \
 arm-tdep.o: arm-tdep.c $(gdbcmd_h) $(gdbcore_h) $(inferior_h) $(defs_h) \
 	$(gdbcore_h) $(regcache_h) $(doublest_h) $(value_h)
 
+armbsd-nat.o: armbsd-nat.c $(defs_h)
+
 bcache.o: bcache.c $(bcache_h) $(defs_h)
 
 blockframe.o: blockframe.c $(defs_h) $(gdbcore_h) $(inferior_h) \

gdb/armbsd-nat.c

@@ -0,0 +1,96 @@
+/* Native-dependent code for BSD Unix running on ARM's, for GDB.
+   Copyright 1988, 1989, 1991, 1992, 1994, 1996, 1999 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"
+
+void
+fetch_inferior_registers (regno)
+     int regno;
+{
+  struct reg inferior_registers;
+  struct fpreg inferior_fpregisters;
+
+  ptrace (PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_registers, 0);
+  memcpy (&registers[REGISTER_BYTE (0)], &inferior_registers,
+	  16 * sizeof (unsigned int));
+  memcpy (&registers[REGISTER_BYTE (PS_REGNUM)], &inferior_registers.r_cpsr,
+	  sizeof (unsigned int));
+  ptrace (PT_GETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_fpregisters,
+	  0);
+  memcpy (&registers[REGISTER_BYTE (F0_REGNUM)], &inferior_fpregisters.fpr[0],
+	  8 * sizeof (fp_reg_t));
+  memcpy (&registers[REGISTER_BYTE (FPS_REGNUM)],
+	  &inferior_fpregisters.fpr_fpsr, sizeof (unsigned int));
+  registers_fetched ();
+}
+
+void
+store_inferior_registers (regno)
+     int regno;
+{
+  struct reg inferior_registers;
+
+  memcpy (&inferior_registers, &registers[REGISTER_BYTE (0)],
+	  16 * sizeof (unsigned int));
+  memcpy (&inferior_registers.r_cpsr, &registers[REGISTER_BYTE (PS_REGNUM)],
+	  sizeof (unsigned int));
+  ptrace (PT_SETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_registers, 0);
+
+  /* XXX Set FP regs. */
+}
+
+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 (&registers[REGISTER_BYTE (0)], &core_reg->intreg,
+	  sizeof (struct reg));
+  /* floating point registers */
+  /* XXX */
+}
+
+#else
+#error Not FETCH_INFERIOR_REGISTERS 
+#endif /* !FETCH_INFERIOR_REGISTERS */
+
+int 
+get_longjmp_target (CORE_ADDR *addr)
+{
+  return 0;
+}

gdb/config/arm/nbsd.mh

@@ -0,0 +1,5 @@
+# Host ARM running NetBSD
+XDEPFILES= ser-tcp.o
+NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o armbsd-nat.o
+XM_FILE=xm-nbsd.h
+NAT_FILE=nm-nbsd.h

gdb/config/arm/nbsd.mt

@@ -0,0 +1,3 @@
+# Target: ARM running NetBSD
+TDEPFILES= arm-tdep.o solib.o solib-svr4.o
+TM_FILE= tm-nbsd.h

gdb/config/arm/nm-nbsd.h

@@ -0,0 +1,33 @@
+/* Native-dependent definitions for ARM running NetBSD, for GDB.
+   Copyright 1986, 1987, 1989, 1992, 1994, 1999 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 NM_NBSD_H
+#define NM_NBSD_H
+
+/* Get generic NetBSD native definitions. */
+#include "nm-nbsd.h"
+
+#define REGISTER_U_ADDR(addr, blockend, regno) \
+	(addr) = arm_register_u_addr ((blockend),(regno));
+
+extern int
+arm_register_u_addr PARAMS ((int, int));
+
+#endif /* NM_NBSD_H */

gdb/config/arm/tm-nbsd.h

@@ -0,0 +1,60 @@
+/* Macro definitions for ARM running under NetBSD.
+   Copyright 1994, 1999 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_NBSD_H
+#define TM_NBSD_H
+
+/* NetBSD doesn't have single stepping support in ptrace().  */
+#define SOFTWARE_SINGLE_STEP_P 1
+
+#include "arm/tm-arm.h"
+#include "tm-nbsd.h"
+
+#define JB_ELEMENT_SIZE sizeof(long)	/* jmp_buf[_JBLEN] is array of ints */
+#define JB_PC	24		/* Setjmp()'s return PC saved here */
+
+/* The first page is not writeable in NetBSD.  */
+#undef LOWEST_PC
+#define LOWEST_PC	0x8000
+
+/* Return non-zero if inside a shared-library entry stub.  */
+#undef IN_SOLIB_CALL_TRAMPOLINE
+#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \
+  STREQ ((name), "_PROCEDURE_LINKAGE_TABLE_")
+
+/* Figure out where the longjmp will land.  Slurp the args out of the stack.
+   We expect the first arg to be a pointer to the jmp_buf structure from which
+   we extract the pc (JB_PC) that we will land at.  The pc is copied into ADDR.
+   This routine returns true on success */
+
+extern int
+get_longjmp_target PARAMS ((CORE_ADDR *));
+
+#define GET_LONGJMP_TARGET(ADDR) get_longjmp_target(ADDR)
+
+/* For compatibility with previous implemenations of GDB on arm/NetBSD,
+   override the default little-endian breakpoint.  */
+#undef ARM_LE_BREAKPOINT
+#define ARM_LE_BREAKPOINT {0x11, 0x00, 0x00, 0xe6}
+
+/* By convention, NetBSD uses the "other" register names. */
+#define DEFAULT_REGISTER_NAMES additional_register_names
+
+#endif /* TM_NBSD_H */

gdb/config/arm/xm-nbsd.h

@@ -0,0 +1,22 @@
+/* Parameters for execution on an ARM running NetBSD, for GDB.
+   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.  */
+
+/* Get generic NetBSD host definitions. */
+#include "xm-nbsd.h"

gdb/configure.host

@@ -35,6 +35,7 @@ alpha*-*-linux*)	gdb_host=alpha-linux ;;
 alpha*-*-freebsd*)	gdb_host=fbsd ;;
 
 arm*-*-linux*)		gdb_host=linux ;;
+arm*-*-netbsd*)		gdb_host=nbsd ;;
 arm*-*-*)		gdb_host=arm ;;
 
 hppa*-*-bsd*)		gdb_host=hppabsd ;;

gdb/configure.tgt

@@ -53,6 +53,7 @@ arm*-wince-pe)		gdb_target=wince ;;
 arm*-*-linux*)		gdb_target=linux 
 			configdirs="$configdirs gdbserver"
 			;;
+arm*-*-netbsd*)		gdb_target=nbsd ;;
 arm*-*-* | thumb*-*-* | strongarm*-*-*)
 			gdb_target=embed
                         configdirs="$configdirs rdi-share"