* fbsd-nat.c: New files with cleaned up contents of fbsd-proc.c.

* fbsd-nat.h: New file.
* Makefile.in (ALLDEPFILES): Add fbsd-nat.c.
(fbsd_nat_h): New variable.
(fbsd-nat.o): New dependency.

4 files changed, 237 insertions, 1 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 8ee6b2ae732..c39d7f8ce2d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,11 @@
 2004-09-19  Mark Kettenis  <kettenis@gnu.org>
 
+	* fbsd-nat.c: New files with cleaned up contents of fbsd-proc.c.
+	* fbsd-nat.h: New file.
+	* Makefile.in (ALLDEPFILES): Add fbsd-nat.c.
+	(fbsd_nat_h): New variable.
+	(fbsd-nat.o): New dependency.
+
 	* config/sparc/nbsd64.mt, config/sparc/obsd.mt,
 	config/sparc/obsd64.mt (DEPRECATED_TM_FILE): Set to solib.h.
 
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index a90de94a28b..d992016e5b2 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -668,6 +668,7 @@ event_loop_h = event-loop.h
 event_top_h = event-top.h
 exec_h = exec.h $(target_h)
 expression_h = expression.h $(symtab_h) $(doublest_h)
+fbsd_nat_h = fbsd-nat.h
 f_lang_h = f-lang.h
 frame_base_h = frame-base.h
 frame_h = frame.h
@@ -1358,7 +1359,9 @@ ALLDEPFILES = \
 	bsd-kvm.c \
 	coff-solib.c \
 	core-regset.c core-aout.c corelow.c \
-	dcache.c exec.c fork-child.c \
+	dcache.c exec.c \
+	fbsd-nat.c \
+	fork-child.c \
 	glibc-tdep.c \
 	go32-nat.c h8300-tdep.c \
 	hppa-tdep.c hppa-hpux-tdep.c \
@@ -1868,6 +1871,9 @@ exec.o: exec.c $(defs_h) $(frame_h) $(inferior_h) $(target_h) $(gdbcmd_h) \
 expprint.o: expprint.c $(defs_h) $(symtab_h) $(gdbtypes_h) $(expression_h) \
 	$(value_h) $(language_h) $(parser_defs_h) $(user_regs_h) $(target_h) \
 	$(gdb_string_h) $(block_h)
+fbsd-nat.o: fbsd-nat.c $(defs_h) $(gdbcore_h) $(inferior_h) $(regcache_h) \
+	$(regset_h) $(gdb_assert_h) $(gdb_string_h) $(elf_bfd_h) \
+	$(fbsd_nat_h)
 fbsd-proc.o: fbsd-proc.c $(defs_h) $(gdbcore_h) $(inferior_h) $(regcache_h) \
 	$(regset_h) $(gdb_assert_h) $(gdb_string_h) $(elf_bfd_h)
 f-exp.o: f-exp.c $(defs_h) $(gdb_string_h) $(expression_h) $(value_h) \
diff --git a/gdb/fbsd-nat.c b/gdb/fbsd-nat.c
new file mode 100644
index 00000000000..b7045d493e2
--- /dev/null
+++ b/gdb/fbsd-nat.c
@@ -0,0 +1,181 @@
+/* Native-dependent code for FreeBSD.
+
+   Copyright 2002, 2003, 2004 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 "gdbcore.h"
+#include "inferior.h"
+#include "regcache.h"
+#include "regset.h"
+
+#include "gdb_assert.h"
+#include "gdb_string.h"
+#include <sys/procfs.h>
+#include <sys/types.h>
+
+#include "elf-bfd.h"
+#include "fbsd-nat.h"
+
+/* Return a the name of file that can be opened to get the symbols for
+   the child process identified by PID.  */
+
+char *
+fbsd_pid_to_exec_file (int pid)
+{
+  char *path;
+  char *buf;
+
+  path = xstrprintf ("/proc/%d/file", pid);
+  buf = xcalloc (MAXPATHLEN, sizeof (char));
+  make_cleanup (xfree, path);
+  make_cleanup (xfree, buf);
+
+  if (readlink (path, buf, MAXPATHLEN) > 0)
+    return buf;
+
+  return NULL;
+}
+
+static int
+fbsd_read_mapping (FILE *mapfile, unsigned long *start, unsigned long *end,
+		   char *protection)
+{
+  /* FreeBSD 5.1-RELEASE uses a 256-byte buffer.  */
+  char buf[256];
+  int resident, privateresident;
+  unsigned long obj;
+  int ret = EOF;
+
+  /* As of FreeBSD 5.0-RELEASE, the layout is described in
+     /usr/src/sys/fs/procfs/procfs_map.c.  Somewhere in 5.1-CURRENT a
+     new column was added to the procfs map.  Therefore we can't use
+     fscanf since we need to support older releases too.  */
+  if (fgets (buf, sizeof buf, mapfile) != NULL)
+    ret = sscanf (buf, "%lx %lx %d %d %lx %s", start, end,
+		  &resident, &privateresident, &obj, protection);
+
+  return (ret != 0 && ret != EOF);
+}
+
+/* Iterate over all the memory regions in the current inferior,
+   calling FUNC for each memory region.  OBFD is passed as the last
+   argument to FUNC.  */
+
+int
+fbsd_find_memory_regions (int (*func) (CORE_ADDR, unsigned long,
+				       int, int, int, void *),
+			  void *obfd)
+{
+  pid_t pid = ptid_get_pid (inferior_ptid);
+  char *mapfilename;
+  FILE *mapfile;
+  unsigned long start, end, size;
+  char protection[4];
+  int read, write, exec;
+
+  mapfilename = xstrprintf ("/proc/%ld/map", (long) pid);
+  mapfile = fopen (mapfilename, "r");
+  if (mapfile == NULL)
+    error ("Couldn't open %s\n", mapfilename);
+
+  if (info_verbose)
+    fprintf_filtered (gdb_stdout, 
+		      "Reading memory regions from %s\n", mapfilename);
+
+  /* Now iterate until end-of-file.  */
+  while (fbsd_read_mapping (mapfile, &start, &end, &protection[0]))
+    {
+      size = end - start;
+
+      read = (strchr (protection, 'r') != 0);
+      write = (strchr (protection, 'w') != 0);
+      exec = (strchr (protection, 'x') != 0);
+
+      if (info_verbose)
+	{
+	  fprintf_filtered (gdb_stdout, 
+			    "Save segment, %ld bytes at 0x%s (%c%c%c)\n", 
+			    size, paddr_nz (start),
+			    read ? 'r' : '-',
+			    write ? 'w' : '-',
+			    exec ? 'x' : '-');
+	}
+
+      /* Invoke the callback function to create the corefile segment. */
+      func (start, size, read, write, exec, obfd);
+    }
+
+  fclose (mapfile);
+  return 0;
+}
+
+/* Create appropriate note sections for a corefile, returning them in
+   allocated memory.  */
+
+char *
+fbsd_make_corefile_notes (bfd *obfd, int *note_size)
+{
+  struct gdbarch *gdbarch = current_gdbarch;
+  const struct regcache *regcache = current_regcache;
+  gregset_t gregs;
+  fpregset_t fpregs;
+  char *note_data = NULL;
+  Elf_Internal_Ehdr *i_ehdrp;
+  const struct regset *regset;
+  size_t size;
+
+  /* Put a "FreeBSD" label in the ELF header.  */
+  i_ehdrp = elf_elfheader (obfd);
+  i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD;
+
+  gdb_assert (gdbarch_regset_from_core_section_p (gdbarch));
+
+  size = sizeof gregs;
+  regset = gdbarch_regset_from_core_section (gdbarch, ".reg", size);
+  gdb_assert (regset && regset->collect_regset);
+  regset->collect_regset (regset, regcache, -1, &gregs, size);
+
+  note_data = elfcore_write_prstatus (obfd, note_data, note_size,
+				      ptid_get_pid (inferior_ptid),
+				      stop_signal, &gregs);
+
+  size = sizeof fpregs;
+  regset = gdbarch_regset_from_core_section (gdbarch, ".reg2", size);
+  gdb_assert (regset && regset->collect_regset);
+  regset->collect_regset (regset, regcache, -1, &fpregs, size);
+
+  note_data = elfcore_write_prfpreg (obfd, note_data, note_size,
+				     &fpregs, sizeof (fpregs));
+
+  if (get_exec_file (0))
+    {
+      char *fname = strrchr (get_exec_file (0), '/') + 1;
+      char *psargs = xstrdup (fname);
+
+      if (get_inferior_args ())
+	psargs = reconcat (psargs, psargs, " ", get_inferior_args (), NULL);
+
+      note_data = elfcore_write_prpsinfo (obfd, note_data, note_size,
+					  fname, psargs);
+    }
+
+  make_cleanup (xfree, note_data);
+  return note_data;
+}
diff --git a/gdb/fbsd-nat.h b/gdb/fbsd-nat.h
new file mode 100644
index 00000000000..b59cf666c36
--- /dev/null
+++ b/gdb/fbsd-nat.h
@@ -0,0 +1,43 @@
+/* Native-dependent code for FreeBSD.
+
+   Copyright 2004 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 FBSD_NAT_H
+#define FBSD_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 *fbsd_pid_to_exec_file (int pid);
+
+/* Iterate over all the memory regions in the current inferior,
+   calling FUNC for each memory region.  OBFD is passed as the last
+   argument to FUNC.  */
+
+extern int fbsd_find_memory_regions (int (*func) (CORE_ADDR, unsigned long,
+						  int, int, int, void *),
+				     void *obfd);
+
+/* Create appropriate note sections for a corefile, returning them in
+   allocated memory.  */
+
+extern char *fbsd_make_corefile_notes (bfd *obfd, int *note_size);
+
+#endif /* fbsd-nat.h */