+2020-09-16 John Baldwin <jhb@FreeBSD.org>
+
+ * configure.ac: Remove check for kinfo_getvmmap().
+ * configure, config.in: Regenerate.
+ * fbsd-nat.c (fbsd_read_mapping): Remove
+ (fbsd_nat_target::find_memory_regions): Remove the procfs version.
+ (fbsd_nat_target::info_proc): Assume kinfo_getfile() and
+ kinfo_get_vmmap() are always present.
+
2020-09-16 John Baldwin <jhb@FreeBSD.org>
* fbsd-nat.c: Always include support for
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
-/* Define to 1 if your system has the kinfo_getfile function. */
+/* Define to 1 if you have the `kinfo_getfile' function. */
#undef HAVE_KINFO_GETFILE
-/* Define to 1 if your system has the kinfo_getvmmap function. */
-#undef HAVE_KINFO_GETVMMAP
-
/* Define if you have <langinfo.h> and nl_langinfo(CODESET). */
#undef HAVE_LANGINFO_CODESET
-# On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
-# On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing kinfo_getvmmap" >&5
-$as_echo_n "checking for library containing kinfo_getvmmap... " >&6; }
-if ${ac_cv_search_kinfo_getvmmap+:} false; then :
- $as_echo_n "(cached) " >&6
-else
- ac_func_search_save_LIBS=$LIBS
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-/* Override any GCC internal prototype to avoid an error.
- Use char because int might match the return type of a GCC
- builtin and then its argument prototype would still apply. */
-#ifdef __cplusplus
-extern "C"
-#endif
-char kinfo_getvmmap ();
-int
-main ()
-{
-return kinfo_getvmmap ();
- ;
- return 0;
-}
-_ACEOF
-for ac_lib in '' util util-freebsd; do
- if test -z "$ac_lib"; then
- ac_res="none required"
- else
- ac_res=-l$ac_lib
- LIBS="-l$ac_lib $ac_func_search_save_LIBS"
- fi
- if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_search_kinfo_getvmmap=$ac_res
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext
- if ${ac_cv_search_kinfo_getvmmap+:} false; then :
- break
-fi
-done
-if ${ac_cv_search_kinfo_getvmmap+:} false; then :
-
-else
- ac_cv_search_kinfo_getvmmap=no
-fi
-rm conftest.$ac_ext
-LIBS=$ac_func_search_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_kinfo_getvmmap" >&5
-$as_echo "$ac_cv_search_kinfo_getvmmap" >&6; }
-ac_res=$ac_cv_search_kinfo_getvmmap
-if test "$ac_res" != no; then :
- test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-
-$as_echo "#define HAVE_KINFO_GETVMMAP 1" >>confdefs.h
-
-fi
-
-
if test "X$prefix" = "XNONE"; then
acl_final_prefix="$ac_default_prefix"
fi
+ # On FreeBSD we need libutil for the kinfo_get* functions. On
+ # GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
+ # Figure out which one to use.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing kinfo_getfile" >&5
$as_echo_n "checking for library containing kinfo_getfile... " >&6; }
if ${ac_cv_search_kinfo_getfile+:} false; then :
if test "$ac_res" != no; then :
test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-$as_echo "#define HAVE_KINFO_GETFILE 1" >>confdefs.h
+fi
+
+
+ # Define HAVE_KINFO_GETFILE if kinfo_getfile is available.
+ for ac_func in kinfo_getfile
+do :
+ ac_fn_c_check_func "$LINENO" "kinfo_getfile" "ac_cv_func_kinfo_getfile"
+if test "x$ac_cv_func_kinfo_getfile" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_KINFO_GETFILE 1
+_ACEOF
fi
+done
# Check for std::thread. This does not work on some platforms, like
# Link in zlib if we can. This allows us to read compressed debug sections.
AM_ZLIB
-# On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
-# On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
-AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
- [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
- [Define to 1 if your system has the kinfo_getvmmap function. ])])
-
AM_ICONV
# GDB may fork/exec the iconv program to get the list of supported character
#include <sys/signal.h>
#include <sys/sysctl.h>
#include <sys/user.h>
-#if defined(HAVE_KINFO_GETFILE) || defined(HAVE_KINFO_GETVMMAP)
#include <libutil.h>
-#endif
-#if !defined(HAVE_KINFO_GETVMMAP)
-#include "gdbsupport/filestuff.h"
-#endif
#include "elf-bfd.h"
#include "fbsd-nat.h"
return NULL;
}
-#ifdef HAVE_KINFO_GETVMMAP
/* Iterate over all the memory regions in the current inferior,
calling FUNC for each memory region. DATA is passed as the last
argument to FUNC. */
}
return 0;
}
-#else
-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. DATA is passed as the last
- argument to FUNC. */
-
-int
-fbsd_nat_target::find_memory_regions (find_memory_region_ftype func,
- void *data)
-{
- pid_t pid = inferior_ptid.pid ();
- unsigned long start, end, size;
- char protection[4];
- int read, write, exec;
-
- std::string mapfilename = string_printf ("/proc/%ld/map", (long) pid);
- gdb_file_up mapfile (fopen (mapfilename.c_str (), "r"));
- if (mapfile == NULL)
- error (_("Couldn't open %s."), mapfilename.c_str ());
-
- if (info_verbose)
- fprintf_filtered (gdb_stdout,
- "Reading memory regions from %s\n", mapfilename.c_str ());
-
- /* Now iterate until end-of-file. */
- while (fbsd_read_mapping (mapfile.get (), &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 %s (%c%c%c)\n",
- size, paddress (target_gdbarch (), start),
- read ? 'r' : '-',
- write ? 'w' : '-',
- exec ? 'x' : '-');
- }
-
- /* 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, data);
- }
-
- return 0;
-}
-#endif
/* Fetch the command line for a running process. */
bool
fbsd_nat_target::info_proc (const char *args, enum info_proc_what what)
{
-#ifdef HAVE_KINFO_GETFILE
gdb::unique_xmalloc_ptr<struct kinfo_file> fdtbl;
int nfd = 0;
-#endif
struct kinfo_proc kp;
pid_t pid;
bool do_cmdline = false;
bool do_cwd = false;
bool do_exe = false;
-#ifdef HAVE_KINFO_GETFILE
bool do_files = false;
-#endif
-#ifdef HAVE_KINFO_GETVMMAP
bool do_mappings = false;
-#endif
bool do_status = false;
switch (what)
do_cwd = true;
do_exe = true;
break;
-#ifdef HAVE_KINFO_GETVMMAP
case IP_MAPPINGS:
do_mappings = true;
break;
-#endif
case IP_STATUS:
case IP_STAT:
do_status = true;
case IP_CWD:
do_cwd = true;
break;
-#ifdef HAVE_KINFO_GETFILE
case IP_FILES:
do_files = true;
break;
-#endif
case IP_ALL:
do_cmdline = true;
do_cwd = true;
do_exe = true;
-#ifdef HAVE_KINFO_GETFILE
do_files = true;
-#endif
-#ifdef HAVE_KINFO_GETVMMAP
do_mappings = true;
-#endif
do_status = true;
break;
default:
error (_("Invalid arguments."));
printf_filtered (_("process %d\n"), pid);
-#ifdef HAVE_KINFO_GETFILE
if (do_cwd || do_exe || do_files)
fdtbl.reset (kinfo_getfile (pid, &nfd));
-#endif
if (do_cmdline)
{
if (do_cwd)
{
const char *cwd = NULL;
-#ifdef HAVE_KINFO_GETFILE
struct kinfo_file *kf = fdtbl.get ();
for (int i = 0; i < nfd; i++, kf++)
{
break;
}
}
-#endif
if (cwd != NULL)
printf_filtered ("cwd = '%s'\n", cwd);
else
if (do_exe)
{
const char *exe = NULL;
-#ifdef HAVE_KINFO_GETFILE
struct kinfo_file *kf = fdtbl.get ();
for (int i = 0; i < nfd; i++, kf++)
{
break;
}
}
-#endif
if (exe == NULL)
exe = pid_to_exec_file (pid);
if (exe != NULL)
else
warning (_("unable to fetch executable path name"));
}
-#ifdef HAVE_KINFO_GETFILE
if (do_files)
{
struct kinfo_file *kf = fdtbl.get ();
else
warning (_("unable to fetch list of open files"));
}
-#endif
-#ifdef HAVE_KINFO_GETVMMAP
if (do_mappings)
{
int nvment;
else
warning (_("unable to fetch virtual memory map"));
}
-#endif
if (do_status)
{
if (!fbsd_fetch_kinfo_proc (pid, &kp))
+2020-09-16 John Baldwin <jhb@FreeBSD.org>
+
+ * common.m4 (GDB_AC_COMMON): Refactor checks for kinfo_getfile().
+ * configure, config.in: Regenerate.
+
2020-09-14 Pedro Alves <pedro@palves.net>
* enum-flags.h: Include "traits.h".
AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
- AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd,
- [AC_DEFINE(HAVE_KINFO_GETFILE, 1,
- [Define to 1 if your system has the kinfo_getfile function. ])])
+ # On FreeBSD we need libutil for the kinfo_get* functions. On
+ # GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
+ # Figure out which one to use.
+ AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd)
+
+ # Define HAVE_KINFO_GETFILE if kinfo_getfile is available.
+ AC_CHECK_FUNCS(kinfo_getfile)
# Check for std::thread. This does not work on some platforms, like
# mingw and DJGPP.
/* Define to 1 if you have the <inttypes.h> header file. */
#undef HAVE_INTTYPES_H
-/* Define to 1 if your system has the kinfo_getfile function. */
+/* Define to 1 if you have the `kinfo_getfile' function. */
#undef HAVE_KINFO_GETFILE
/* Define if you have <langinfo.h> and nl_langinfo(CODESET). */
fi
+ # On FreeBSD we need libutil for the kinfo_get* functions. On
+ # GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
+ # Figure out which one to use.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing kinfo_getfile" >&5
$as_echo_n "checking for library containing kinfo_getfile... " >&6; }
if ${ac_cv_search_kinfo_getfile+:} false; then :
if test "$ac_res" != no; then :
test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
-$as_echo "#define HAVE_KINFO_GETFILE 1" >>confdefs.h
+fi
+
+
+ # Define HAVE_KINFO_GETFILE if kinfo_getfile is available.
+ for ac_func in kinfo_getfile
+do :
+ ac_fn_c_check_func "$LINENO" "kinfo_getfile" "ac_cv_func_kinfo_getfile"
+if test "x$ac_cv_func_kinfo_getfile" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_KINFO_GETFILE 1
+_ACEOF
fi
+done
# Check for std::thread. This does not work on some platforms, like
projects / deliverable / binutils-gdb.git / commitdiff
