/* Native-dependent code for FreeBSD.
- Copyright (C) 2002, 2003, 2004, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 2002-2015 Free Software Foundation, Inc.
This file is part of GDB.
#include "regcache.h"
#include "regset.h"
#include "gdbthread.h"
-
-#include "gdb_assert.h"
-#include "gdb_string.h"
#include <sys/types.h>
#include <sys/procfs.h>
#include <sys/sysctl.h>
+#ifdef HAVE_KINFO_GETVMMAP
+#include <sys/user.h>
+#include <libutil.h>
+#endif
#include "elf-bfd.h"
#include "fbsd-nat.h"
-/* Return a the name of file that can be opened to get the symbols for
+/* Return the name of a file that can be opened to get the symbols for
the child process identified by PID. */
char *
-fbsd_pid_to_exec_file (int pid)
+fbsd_pid_to_exec_file (struct target_ops *self, int pid)
{
- size_t len = MAXPATHLEN;
- char *buf = xcalloc (len, sizeof (char));
- char *path;
+ ssize_t len = PATH_MAX;
+ static char buf[PATH_MAX];
+ char name[PATH_MAX];
#ifdef KERN_PROC_PATHNAME
int mib[4];
return buf;
#endif
- path = xstrprintf ("/proc/%d/file", pid);
- if (readlink (path, buf, MAXPATHLEN) == -1)
+ xsnprintf (name, PATH_MAX, "/proc/%d/exe", pid);
+ len = readlink (name, buf, PATH_MAX - 1);
+ if (len != -1)
{
- xfree (buf);
- buf = NULL;
+ buf[len] = '\0';
+ return buf;
}
- xfree (path);
- return buf;
+ return NULL;
}
+#ifdef HAVE_KINFO_GETVMMAP
+/* 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 (struct target_ops *self,
+ find_memory_region_ftype func, void *obfd)
+{
+ pid_t pid = ptid_get_pid (inferior_ptid);
+ struct kinfo_vmentry *vmentl, *kve;
+ uint64_t size;
+ struct cleanup *cleanup;
+ int i, nitems;
+
+ vmentl = kinfo_getvmmap (pid, &nitems);
+ if (vmentl == NULL)
+ perror_with_name (_("Couldn't fetch VM map entries."));
+ cleanup = make_cleanup (free, vmentl);
+
+ for (i = 0; i < nitems; i++)
+ {
+ kve = &vmentl[i];
+
+ /* Skip unreadable segments and those where MAP_NOCORE has been set. */
+ if (!(kve->kve_protection & KVME_PROT_READ)
+ || kve->kve_flags & KVME_FLAG_NOCOREDUMP)
+ continue;
+
+ /* Skip segments with an invalid type. */
+ if (kve->kve_type != KVME_TYPE_DEFAULT
+ && kve->kve_type != KVME_TYPE_VNODE
+ && kve->kve_type != KVME_TYPE_SWAP
+ && kve->kve_type != KVME_TYPE_PHYS)
+ continue;
+
+ size = kve->kve_end - kve->kve_start;
+ if (info_verbose)
+ {
+ fprintf_filtered (gdb_stdout,
+ "Save segment, %ld bytes at %s (%c%c%c)\n",
+ (long) size,
+ paddress (target_gdbarch (), kve->kve_start),
+ kve->kve_protection & KVME_PROT_READ ? 'r' : '-',
+ kve->kve_protection & KVME_PROT_WRITE ? 'w' : '-',
+ kve->kve_protection & KVME_PROT_EXEC ? 'x' : '-');
+ }
+
+ /* Invoke the callback function to create the corefile segment.
+ Pass MODIFIED as true, we do not know the real modification state. */
+ func (kve->kve_start, size, kve->kve_protection & KVME_PROT_READ,
+ kve->kve_protection & KVME_PROT_WRITE,
+ kve->kve_protection & KVME_PROT_EXEC, 1, obfd);
+ }
+ do_cleanups (cleanup);
+ return 0;
+}
+#else
static int
fbsd_read_mapping (FILE *mapfile, unsigned long *start, unsigned long *end,
char *protection)
argument to FUNC. */
int
-fbsd_find_memory_regions (int (*func) (CORE_ADDR, unsigned long,
- int, int, int, void *),
- void *obfd)
+fbsd_find_memory_regions (struct target_ops *self,
+ find_memory_region_ftype func, void *obfd)
{
pid_t pid = ptid_get_pid (inferior_ptid);
char *mapfilename;
{
fprintf_filtered (gdb_stdout,
"Save segment, %ld bytes at %s (%c%c%c)\n",
- size, paddress (target_gdbarch, start),
+ size, paddress (target_gdbarch (), start),
read ? 'r' : '-',
write ? 'w' : '-',
exec ? 'x' : '-');
}
- /* Invoke the callback function to create the corefile segment. */
- func (start, size, read, write, exec, obfd);
+ /* Invoke the callback function to create the corefile segment.
+ Pass MODIFIED as true, we do not know the real modification state. */
+ func (start, size, read, write, exec, 1, obfd);
}
do_cleanups (cleanup);
return 0;
}
-
-static int
-find_signalled_thread (struct thread_info *info, void *data)
-{
- if (info->stop_signal != TARGET_SIGNAL_0
- && ptid_get_pid (info->ptid) == ptid_get_pid (inferior_ptid))
- return 1;
-
- return 0;
-}
-
-static enum target_signal
-find_stop_signal (void)
-{
- struct thread_info *info =
- iterate_over_threads (find_signalled_thread, NULL);
-
- if (info)
- return info->stop_signal;
- else
- return TARGET_SIGNAL_0;
-}
-
-/* Create appropriate note sections for a corefile, returning them in
- allocated memory. */
-
-char *
-fbsd_make_corefile_notes (bfd *obfd, int *note_size)
-{
- const struct regcache *regcache = get_current_regcache ();
- struct gdbarch *gdbarch = get_regcache_arch (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),
- find_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;
-}
+#endif
projects / deliverable / binutils-gdb.git / blobdiff