Mark Kettenis <kettenis@gnu.org>

* i386nbsd-nat.c: Include "nbsd-nat.h".
(_initialize_i386nbsd_nat): Update target vector to use
nbsd_pid_to_exec_file.
* config/i386/nbsdelf.mh (NATDEPFILES): Add nbsd-nat.o.
* config/i386/nbsdaout.mh (NATDEPFILES): Add nbsd-nat.o.
* nbsd-nat.c: New file.
* nbsd-nat.h: New file.
* Makefile.in (ALLDEPFILES): Add nbsd-nat.c.
(nbsd_nat_h): New variable.
(nbsd-nat.o): New dependency.

gdb/ChangeLog

@@ -1,3 +1,17 @@
+2006-12-17  Nick Hudson  <skrll@netbsd.org>
+	    Mark Kettenis  <kettenis@gnu.org>
+
+	* i386nbsd-nat.c: Include "nbsd-nat.h".
+	(_initialize_i386nbsd_nat): Update target vector to use
+	nbsd_pid_to_exec_file.
+	* config/i386/nbsdelf.mh (NATDEPFILES): Add nbsd-nat.o.
+	* config/i386/nbsdaout.mh (NATDEPFILES): Add nbsd-nat.o.
+	* nbsd-nat.c: New file.
+	* nbsd-nat.h: New file.
+	* Makefile.in (ALLDEPFILES): Add nbsd-nat.c.
+	(nbsd_nat_h): New variable.
+	(nbsd-nat.o): New dependency.
+
 2006-12-16  Daniel Jacobowitz  <dan@codesourcery.com>
 
 	* Makefile.in (ALLDEPFILES): Remove mipsv4-nat.c.

gdb/Makefile.in

@@ -758,6 +758,7 @@ mips_tdep_h = mips-tdep.h
 memory_map_h = memory-map.h $(memattr_h)
 mn10300_tdep_h = mn10300-tdep.h
 monitor_h = monitor.h
+nbsd_nat_h = nbsd-nat.h
 nbsd_tdep_h = nbsd-tdep.h
 nto_tdep_h = nto-tdep.h $(defs_h) $(solist_h) $(osabi_h) $(regset_h)
 objc_lang_h = objc-lang.h
@@ -1476,7 +1477,7 @@ ALLDEPFILES = \
 	mips-tdep.c \
 	mipsnbsd-nat.c mipsnbsd-tdep.c \
 	mips64obsd-nat.c mips64obsd-tdep.c \
-	nbsd-tdep.c obsd-tdep.c \
+	nbsd-nat.c nbsd-tdep.c obsd-tdep.c \
 	solib-osf.c \
 	somread.c solib-som.c $(HPREAD_SOURCE) \
 	posix-hdep.c \
@@ -2400,6 +2401,7 @@ ms1-tdep.o: ms1-tdep.c $(defs_h) $(frame_h) $(frame_unwind_h) $(frame_base_h) \
 	$(gdb_string_h) $(regcache_h) $(reggroups_h) $(gdbcore_h) \
 	$(trad_frame_h) $(inferior_h) $(dwarf2_frame_h) $(infcall_h) \
 	$(gdb_assert_h)
+nbsd-nat.o: nbsd-nat.c $(defs_h) $(nbsd_nat_h)
 nbsd-tdep.o: nbsd-tdep.c $(defs_h) $(gdb_string_h) $(solib_svr4_h)
 nlmread.o: nlmread.c $(defs_h) $(bfd_h) $(symtab_h) $(symfile_h) \
 	$(objfiles_h) $(buildsym_h) $(stabsread_h) $(block_h)

gdb/config/i386/nbsdaout.mh

@@ -1,6 +1,6 @@
 # Host: NetBSD/i386 a.out
 NATDEPFILES= fork-child.o inf-ptrace.o \
-	i386bsd-nat.o i386nbsd-nat.o bsd-kvm.o \
+	nbsd-nat.o i386bsd-nat.o i386nbsd-nat.o bsd-kvm.o \
 	solib.o solib-sunos.o
 
 LOADLIBES= -lkvm

gdb/config/i386/nbsdelf.mh

@@ -1,5 +1,5 @@
 # Host: NetBSD/i386 ELF
 NATDEPFILES= fork-child.o inf-ptrace.o \
-	i386bsd-nat.o i386nbsd-nat.o bsd-kvm.o
+	nbsd-nat.o i386bsd-nat.o i386nbsd-nat.o bsd-kvm.o
 
 LOADLIBES= -lkvm

gdb/i386nbsd-nat.c

@@ -33,6 +33,7 @@
 #include <machine/frame.h>
 #include <machine/pcb.h>
 
+#include "nbsd-nat.h"
 #include "bsd-kvm.h"
 
 static int
@@ -79,8 +80,12 @@ void _initialize_i386nbsd_nat (void);
 void
 _initialize_i386nbsd_nat (void)
 {
-  /* We've got nothing to add to the common *BSD/i386 target.  */
+  struct target_ops *t;
-  add_target (i386bsd_target ());
+
+  /* Add some extra features to the common *BSD/i386 target.  */
+  t = i386bsd_target ();
+  t->to_pid_to_exec_file = nbsd_pid_to_exec_file;
+  add_target (t);
  
   /* Support debugging kernel virtual memory images.  */
   bsd_kvm_add_target (i386nbsd_supply_pcb);

gdb/nbsd-nat.c

@@ -0,0 +1,47 @@
+/* Native-dependent code for NetBSD.
+
+   Copyright (C) 2006 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 <sys/param.h>
+
+#include "nbsd-nat.h"
+
+/* Return a the name of file that can be opened to get the symbols for
+   the child process identified by PID.  */
+
+char *
+nbsd_pid_to_exec_file (int pid)
+{
+  size_t len = MAXPATHLEN;
+  char *buf = xcalloc (len, sizeof (char));
+  char *path;
+
+  path = xstrprintf ("/proc/%d/exe", pid);
+  if (readlink (path, buf, MAXPATHLEN) == -1)
+    {
+      xfree (buf);
+      buf = NULL;
+    }
+
+  xfree (path);
+  return buf;
+}

gdb/nbsd-nat.h

@@ -0,0 +1,30 @@
+/* Native-dependent code for NetBSD.
+
+   Copyright (C) 2006 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., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
+
+#ifndef NBSD_NAT_H
+#define NBSD_NAT_H
+
+/* Return a the name of file that can be opened to get the symbols for
+   the child process identified by PID.  */
+
+extern char *nbsd_pid_to_exec_file (int pid);
+
+#endif /* nbsd-nat.h */