--- /dev/null
+/* 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;
+}
--- /dev/null
+/* 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 */
projects / binutils-gdb.git / commitdiff