diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c
index 301dea9..ef715e7 100644
--- a/gdb/gdbserver/server.c
+++ b/gdb/gdbserver/server.c
@@ -3820,15 +3820,6 @@ main (int argc, char *argv[])
   gdb_assert_not_reached ("captured_main should never return");
 }
 
-/* Skip PACKET until the next semi-colon (or end of string).  */
-
-static void
-skip_to_semicolon (char **packet)
-{
-  while (**packet != '\0' && **packet != ';')
-    (*packet)++;
-}
-
 /* Process options coming from Z packets for a breakpoint.  PACKET is
    the packet buffer.  *PACKET is updated to point to the first char
    after the last processed option.  */
@@ -3856,7 +3847,7 @@ process_point_options (struct breakpoint *bp, char **packet)
 	  if (debug_threads)
 	    debug_printf ("Found breakpoint condition.\n");
 	  if (!add_breakpoint_condition (bp, &dataptr))
-	    skip_to_semicolon (&dataptr);
+	    dataptr = strchrnul (dataptr, ';');
 	}
       else if (startswith (dataptr, "cmds:"))
 	{
@@ -3866,14 +3857,14 @@ process_point_options (struct breakpoint *bp, char **packet)
 	  persist = (*dataptr == '1');
 	  dataptr += 2;
 	  if (add_breakpoint_commands (bp, &dataptr, persist))
-	    skip_to_semicolon (&dataptr);
+	    dataptr = strchrnul (dataptr, ';');
 	}
       else
 	{
 	  fprintf (stderr, "Unknown token %c, ignoring.\n",
 		   *dataptr);
 	  /* Skip tokens until we find one that we recognize.  */
-	  skip_to_semicolon (&dataptr);
+	  dataptr = strchrnul (dataptr, ';');
 	}
     }
   *packet = dataptr;
diff --git a/gdb/gnulib/aclocal.m4 b/gdb/gnulib/aclocal.m4
index 5977e47..e5cc409 100644
--- a/gdb/gnulib/aclocal.m4
+++ b/gdb/gnulib/aclocal.m4
@@ -1064,6 +1064,7 @@ m4_include([import/m4/multiarch.m4])
 m4_include([import/m4/nocrash.m4])
 m4_include([import/m4/off_t.m4])
 m4_include([import/m4/pathmax.m4])
+m4_include([import/m4/rawmemchr.m4])
 m4_include([import/m4/readlink.m4])
 m4_include([import/m4/rename.m4])
 m4_include([import/m4/rmdir.m4])
@@ -1075,6 +1076,7 @@ m4_include([import/m4/stddef_h.m4])
 m4_include([import/m4/stdint.m4])
 m4_include([import/m4/stdio_h.m4])
 m4_include([import/m4/stdlib_h.m4])
+m4_include([import/m4/strchrnul.m4])
 m4_include([import/m4/string_h.m4])
 m4_include([import/m4/strstr.m4])
 m4_include([import/m4/strtok_r.m4])
diff --git a/gdb/gnulib/config.in b/gdb/gnulib/config.in
index 4587003..1371394 100644
--- a/gdb/gnulib/config.in
+++ b/gdb/gnulib/config.in
@@ -113,6 +113,9 @@
 /* Define to 1 when the gnulib module memmem should be tested. */
 #undef GNULIB_TEST_MEMMEM
 
+/* Define to 1 when the gnulib module rawmemchr should be tested. */
+#undef GNULIB_TEST_RAWMEMCHR
+
 /* Define to 1 when the gnulib module readlink should be tested. */
 #undef GNULIB_TEST_READLINK
 
@@ -128,6 +131,9 @@
 /* Define to 1 when the gnulib module stat should be tested. */
 #undef GNULIB_TEST_STAT
 
+/* Define to 1 when the gnulib module strchrnul should be tested. */
+#undef GNULIB_TEST_STRCHRNUL
+
 /* Define to 1 when the gnulib module strstr should be tested. */
 #undef GNULIB_TEST_STRSTR
 
@@ -276,6 +282,9 @@
 /* Define to 1 if you have the `mprotect' function. */
 #undef HAVE_MPROTECT
 
+/* Define to 1 if you have the `rawmemchr' function. */
+#undef HAVE_RAWMEMCHR
+
 /* Define to 1 if acosf is declared even after undefining macros. */
 #undef HAVE_RAW_DECL_ACOSF
 
@@ -1117,6 +1126,9 @@
 /* Define to 1 if you have the <stdlib.h> header file. */
 #undef HAVE_STDLIB_H
 
+/* Define to 1 if you have the `strchrnul' function. */
+#undef HAVE_STRCHRNUL
+
 /* Define to 1 if you have the <strings.h> header file. */
 #undef HAVE_STRINGS_H
 
diff --git a/gdb/gnulib/configure b/gdb/gnulib/configure
index 23ff364..540bad3 100644
--- a/gdb/gnulib/configure
+++ b/gdb/gnulib/configure
@@ -5320,6 +5320,7 @@ fi
   # Code from module multiarch:
   # Code from module nocrash:
   # Code from module pathmax:
+  # Code from module rawmemchr:
   # Code from module readlink:
   # Code from module rename:
   # Code from module rmdir:
@@ -5336,6 +5337,7 @@ fi
   # Code from module stdint:
   # Code from module stdio:
   # Code from module stdlib:
+  # Code from module strchrnul:
   # Code from module streq:
   # Code from module string:
   # Code from module strnlen1:
@@ -16121,6 +16123,53 @@ $as_echo "#define GNULIB_TEST_MEMMEM 1" >>confdefs.h
 
 
 
+
+  for ac_func in rawmemchr
+do :
+  ac_fn_c_check_func "$LINENO" "rawmemchr" "ac_cv_func_rawmemchr"
+if test "x$ac_cv_func_rawmemchr" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_RAWMEMCHR 1
+_ACEOF
+
+fi
+done
+
+  if test $ac_cv_func_rawmemchr = no; then
+    HAVE_RAWMEMCHR=0
+  fi
+
+  if test $HAVE_RAWMEMCHR = 0; then
+
+
+
+
+
+
+
+
+  gl_LIBOBJS="$gl_LIBOBJS rawmemchr.$ac_objext"
+
+    :
+  fi
+
+
+
+
+
+          GNULIB_RAWMEMCHR=1
+
+
+
+
+
+$as_echo "#define GNULIB_TEST_RAWMEMCHR 1" >>confdefs.h
+
+
+
+
+
+
   if test $ac_cv_func_readlink = no; then
     HAVE_READLINK=0
   else
@@ -17428,6 +17477,115 @@ fi
 
 
 
+  for ac_func in strchrnul
+do :
+  ac_fn_c_check_func "$LINENO" "strchrnul" "ac_cv_func_strchrnul"
+if test "x$ac_cv_func_strchrnul" = x""yes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_STRCHRNUL 1
+_ACEOF
+
+fi
+done
+
+  if test $ac_cv_func_strchrnul = no; then
+    HAVE_STRCHRNUL=0
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether strchrnul works" >&5
+$as_echo_n "checking whether strchrnul works... " >&6; }
+if test "${gl_cv_func_strchrnul_works+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+           cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#if defined __CYGWIN__
+ #include <cygwin/version.h>
+ #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 9)
+  Lucky user
+ #endif
+#else
+  Lucky user
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "Lucky user" >/dev/null 2>&1; then :
+  gl_cv_func_strchrnul_works="guessing yes"
+else
+  gl_cv_func_strchrnul_works="guessing no"
+fi
+rm -f conftest*
+
+
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <string.h> /* for strchrnul */
+
+int
+main ()
+{
+const char *buf = "a";
+      return strchrnul (buf, 'b') != buf + 1;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  gl_cv_func_strchrnul_works=yes
+else
+  gl_cv_func_strchrnul_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_func_strchrnul_works" >&5
+$as_echo "$gl_cv_func_strchrnul_works" >&6; }
+    case "$gl_cv_func_strchrnul_works" in
+      *yes) ;;
+      *) REPLACE_STRCHRNUL=1 ;;
+    esac
+  fi
+
+  if test $HAVE_STRCHRNUL = 0 || test $REPLACE_STRCHRNUL = 1; then
+
+
+
+
+
+
+
+
+  gl_LIBOBJS="$gl_LIBOBJS strchrnul.$ac_objext"
+
+    :
+  fi
+
+
+
+
+
+          GNULIB_STRCHRNUL=1
+
+
+
+
+
+$as_echo "#define GNULIB_TEST_STRCHRNUL 1" >>confdefs.h
+
+
+
+
+
+
+
 
   if test $REPLACE_STRSTR = 0; then
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether strstr works in linear time" >&5
diff --git a/gdb/gnulib/import/Makefile.am b/gdb/gnulib/import/Makefile.am
index 32dab67..3fb324b 100644
--- a/gdb/gnulib/import/Makefile.am
+++ b/gdb/gnulib/import/Makefile.am
@@ -21,7 +21,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=import --m4-base=import/m4 --doc-base=doc --tests-base=tests --aux-dir=import/extra --no-conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca canonicalize-lgpl dirent dirfd errno fnmatch-gnu frexpl inttypes lstat memchr memmem pathmax readlink rename signal-h strstr strtok_r sys_stat unistd update-copyright wchar wctype-h
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=import --m4-base=import/m4 --doc-base=doc --tests-base=tests --aux-dir=import/extra --no-conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca canonicalize-lgpl dirent dirfd errno fnmatch-gnu frexpl inttypes lstat memchr memmem pathmax readlink rename signal-h strchrnul strstr strtok_r sys_stat unistd update-copyright wchar wctype-h
 
 AUTOMAKE_OPTIONS = 1.9.6 gnits
 
@@ -842,6 +842,15 @@ EXTRA_DIST += pathmax.h
 
 ## end   gnulib module pathmax
 
+## begin gnulib module rawmemchr
+
+
+EXTRA_DIST += rawmemchr.c rawmemchr.valgrind
+
+EXTRA_libgnu_a_SOURCES += rawmemchr.c
+
+## end   gnulib module rawmemchr
+
 ## begin gnulib module readlink
 
 
@@ -1345,6 +1354,15 @@ EXTRA_DIST += stdlib.in.h
 
 ## end   gnulib module stdlib
 
+## begin gnulib module strchrnul
+
+
+EXTRA_DIST += strchrnul.c strchrnul.valgrind
+
+EXTRA_libgnu_a_SOURCES += strchrnul.c
+
+## end   gnulib module strchrnul
+
 ## begin gnulib module streq
 
 
diff --git a/gdb/gnulib/import/Makefile.in b/gdb/gnulib/import/Makefile.in
index f2324d0..d771e15 100644
--- a/gdb/gnulib/import/Makefile.in
+++ b/gdb/gnulib/import/Makefile.in
@@ -36,7 +36,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=import --m4-base=import/m4 --doc-base=doc --tests-base=tests --aux-dir=import/extra --no-conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca canonicalize-lgpl dirent dirfd errno fnmatch-gnu frexpl inttypes lstat memchr memmem pathmax readlink rename signal-h strstr strtok_r sys_stat unistd update-copyright wchar wctype-h
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=import --m4-base=import/m4 --doc-base=doc --tests-base=tests --aux-dir=import/extra --no-conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca canonicalize-lgpl dirent dirfd errno fnmatch-gnu frexpl inttypes lstat memchr memmem pathmax readlink rename signal-h strchrnul strstr strtok_r sys_stat unistd update-copyright wchar wctype-h
 
 
 
@@ -115,6 +115,7 @@ am__aclocal_m4_deps = $(top_srcdir)/import/m4/00gnulib.m4 \
 	$(top_srcdir)/import/m4/nocrash.m4 \
 	$(top_srcdir)/import/m4/off_t.m4 \
 	$(top_srcdir)/import/m4/pathmax.m4 \
+	$(top_srcdir)/import/m4/rawmemchr.m4 \
 	$(top_srcdir)/import/m4/readlink.m4 \
 	$(top_srcdir)/import/m4/rename.m4 \
 	$(top_srcdir)/import/m4/rmdir.m4 \
@@ -126,6 +127,7 @@ am__aclocal_m4_deps = $(top_srcdir)/import/m4/00gnulib.m4 \
 	$(top_srcdir)/import/m4/stdint.m4 \
 	$(top_srcdir)/import/m4/stdio_h.m4 \
 	$(top_srcdir)/import/m4/stdlib_h.m4 \
+	$(top_srcdir)/import/m4/strchrnul.m4 \
 	$(top_srcdir)/import/m4/string_h.m4 \
 	$(top_srcdir)/import/m4/strstr.m4 \
 	$(top_srcdir)/import/m4/strtok_r.m4 \
@@ -1277,17 +1279,18 @@ EXTRA_DIST = m4/gnulib-cache.m4 alloca.c alloca.in.h \
 	ref-add.sin ref-del.sin lstat.c malloc.c malloca.h \
 	malloca.valgrind math.in.h mbrtowc.c mbsinit.c \
 	mbsrtowcs-impl.h mbsrtowcs-state.c mbsrtowcs.c memchr.c \
-	memchr.valgrind memmem.c str-two-way.h pathmax.h readlink.c \
-	rename.c rmdir.c same-inode.h signal.in.h \
-	$(top_srcdir)/import/extra/snippet/_Noreturn.h \
+	memchr.valgrind memmem.c str-two-way.h pathmax.h rawmemchr.c \
+	rawmemchr.valgrind readlink.c rename.c rmdir.c same-inode.h \
+	signal.in.h $(top_srcdir)/import/extra/snippet/_Noreturn.h \
 	$(top_srcdir)/import/extra/snippet/arg-nonnull.h \
 	$(top_srcdir)/import/extra/snippet/c++defs.h \
 	$(top_srcdir)/import/extra/snippet/warn-on-use.h stat.c \
 	stdbool.in.h stddef.in.h stdint.in.h stdio.in.h stdlib.in.h \
-	streq.h string.in.h str-two-way.h strstr.c strtok_r.c \
-	sys_stat.in.h sys_time.in.h sys_types.in.h time.in.h \
-	unistd.in.h $(top_srcdir)/import/extra/update-copyright \
-	verify.h wchar.in.h wctype.in.h
+	strchrnul.c strchrnul.valgrind streq.h string.in.h \
+	str-two-way.h strstr.c strtok_r.c sys_stat.in.h sys_time.in.h \
+	sys_types.in.h time.in.h unistd.in.h \
+	$(top_srcdir)/import/extra/update-copyright verify.h \
+	wchar.in.h wctype.in.h
 
 # The BUILT_SOURCES created by this Makefile snippet are not used via #include
 # statements but through direct file reference. Therefore this snippet must be
@@ -1330,8 +1333,8 @@ EXTRA_libgnu_a_SOURCES = alloca.c canonicalize-lgpl.c dirfd.c float.c \
 	itold.c fnmatch.c fnmatch_loop.c frexp.c frexp.c frexpl.c \
 	gettimeofday.c isnan.c isnand.c isnan.c isnanl.c lstat.c \
 	malloc.c mbrtowc.c mbsinit.c mbsrtowcs-state.c mbsrtowcs.c \
-	memchr.c memmem.c readlink.c rename.c rmdir.c stat.c strstr.c \
-	strtok_r.c
+	memchr.c memmem.c rawmemchr.c readlink.c rename.c rmdir.c \
+	stat.c strchrnul.c strstr.c strtok_r.c
 
 # Use this preprocessor expression to decide whether #include_next works.
 # Do not rely on a 'configure'-time test for this, since the expression
@@ -1432,10 +1435,12 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mbsrtowcs.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/memchr.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/memmem.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rawmemchr.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/readlink.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rename.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/rmdir.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stat.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/strchrnul.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stripslash.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/strnlen1.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/strstr.Po@am__quote@
diff --git a/gdb/gnulib/import/m4/gnulib-cache.m4 b/gdb/gnulib/import/m4/gnulib-cache.m4
index a873208..a52dec6 100644
--- a/gdb/gnulib/import/m4/gnulib-cache.m4
+++ b/gdb/gnulib/import/m4/gnulib-cache.m4
@@ -27,7 +27,7 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --lib=libgnu --source-base=import --m4-base=import/m4 --doc-base=doc --tests-base=tests --aux-dir=import/extra --no-conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca canonicalize-lgpl dirent dirfd errno fnmatch-gnu frexpl inttypes lstat memchr memmem pathmax readlink rename signal-h strstr strtok_r sys_stat unistd update-copyright wchar wctype-h
+#   gnulib-tool --import --dir=. --lib=libgnu --source-base=import --m4-base=import/m4 --doc-base=doc --tests-base=tests --aux-dir=import/extra --no-conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca canonicalize-lgpl dirent dirfd errno fnmatch-gnu frexpl inttypes lstat memchr memmem pathmax readlink rename signal-h strchrnul strstr strtok_r sys_stat unistd update-copyright wchar wctype-h
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([])
@@ -47,6 +47,7 @@ gl_MODULES([
   readlink
   rename
   signal-h
+  strchrnul
   strstr
   strtok_r
   sys_stat
diff --git a/gdb/gnulib/import/m4/gnulib-comp.m4 b/gdb/gnulib/import/m4/gnulib-comp.m4
index 01912bb..235dbb8 100644
--- a/gdb/gnulib/import/m4/gnulib-comp.m4
+++ b/gdb/gnulib/import/m4/gnulib-comp.m4
@@ -83,6 +83,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module multiarch:
   # Code from module nocrash:
   # Code from module pathmax:
+  # Code from module rawmemchr:
   # Code from module readlink:
   # Code from module rename:
   # Code from module rmdir:
@@ -99,6 +100,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module stdint:
   # Code from module stdio:
   # Code from module stdlib:
+  # Code from module strchrnul:
   # Code from module streq:
   # Code from module string:
   # Code from module strnlen1:
@@ -251,6 +253,12 @@ AC_DEFUN([gl_INIT],
   gl_STRING_MODULE_INDICATOR([memmem])
   gl_MULTIARCH
   gl_PATHMAX
+  gl_FUNC_RAWMEMCHR
+  if test $HAVE_RAWMEMCHR = 0; then
+    AC_LIBOBJ([rawmemchr])
+    gl_PREREQ_RAWMEMCHR
+  fi
+  gl_STRING_MODULE_INDICATOR([rawmemchr])
   gl_FUNC_READLINK
   if test $HAVE_READLINK = 0 || test $REPLACE_READLINK = 1; then
     AC_LIBOBJ([readlink])
@@ -280,6 +288,12 @@ AC_DEFUN([gl_INIT],
   gl_STDINT_H
   gl_STDIO_H
   gl_STDLIB_H
+  gl_FUNC_STRCHRNUL
+  if test $HAVE_STRCHRNUL = 0 || test $REPLACE_STRCHRNUL = 1; then
+    AC_LIBOBJ([strchrnul])
+    gl_PREREQ_STRCHRNUL
+  fi
+  gl_STRING_MODULE_INDICATOR([strchrnul])
   gl_HEADER_STRING_H
   gl_FUNC_STRSTR
   if test $REPLACE_STRSTR = 1; then
@@ -497,6 +511,8 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/memchr.valgrind
   lib/memmem.c
   lib/pathmax.h
+  lib/rawmemchr.c
+  lib/rawmemchr.valgrind
   lib/readlink.c
   lib/ref-add.sin
   lib/ref-del.sin
@@ -511,6 +527,8 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/stdio.in.h
   lib/stdlib.in.h
   lib/str-two-way.h
+  lib/strchrnul.c
+  lib/strchrnul.valgrind
   lib/streq.h
   lib/string.in.h
   lib/stripslash.c
@@ -579,6 +597,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/nocrash.m4
   m4/off_t.m4
   m4/pathmax.m4
+  m4/rawmemchr.m4
   m4/readlink.m4
   m4/rename.m4
   m4/rmdir.m4
@@ -590,6 +609,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/stdint.m4
   m4/stdio_h.m4
   m4/stdlib_h.m4
+  m4/strchrnul.m4
   m4/string_h.m4
   m4/strstr.m4
   m4/strtok_r.m4
diff --git a/gdb/gnulib/import/m4/rawmemchr.m4 b/gdb/gnulib/import/m4/rawmemchr.m4
new file mode 100644
index 0000000..88e815e
--- /dev/null
+++ b/gdb/gnulib/import/m4/rawmemchr.m4
@@ -0,0 +1,20 @@
+# rawmemchr.m4 serial 2
+dnl Copyright (C) 2003, 2007-2015 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_RAWMEMCHR],
+[
+  dnl Persuade glibc <string.h> to declare rawmemchr().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_CHECK_FUNCS([rawmemchr])
+  if test $ac_cv_func_rawmemchr = no; then
+    HAVE_RAWMEMCHR=0
+  fi
+])
+
+# Prerequisites of lib/strchrnul.c.
+AC_DEFUN([gl_PREREQ_RAWMEMCHR], [:])
diff --git a/gdb/gnulib/import/m4/strchrnul.m4 b/gdb/gnulib/import/m4/strchrnul.m4
new file mode 100644
index 0000000..8c3d4cf
--- /dev/null
+++ b/gdb/gnulib/import/m4/strchrnul.m4
@@ -0,0 +1,50 @@
+# strchrnul.m4 serial 9
+dnl Copyright (C) 2003, 2007, 2009-2015 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRCHRNUL],
+[
+  dnl Persuade glibc <string.h> to declare strchrnul().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_CHECK_FUNCS([strchrnul])
+  if test $ac_cv_func_strchrnul = no; then
+    HAVE_STRCHRNUL=0
+  else
+    AC_CACHE_CHECK([whether strchrnul works],
+      [gl_cv_func_strchrnul_works],
+      [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <string.h> /* for strchrnul */
+]], [[const char *buf = "a";
+      return strchrnul (buf, 'b') != buf + 1;
+    ]])],
+        [gl_cv_func_strchrnul_works=yes],
+        [gl_cv_func_strchrnul_works=no],
+        [dnl Cygwin 1.7.9 introduced strchrnul, but it was broken until 1.7.10
+         AC_EGREP_CPP([Lucky user],
+           [
+#if defined __CYGWIN__
+ #include <cygwin/version.h>
+ #if CYGWIN_VERSION_DLL_COMBINED > CYGWIN_VERSION_DLL_MAKE_COMBINED (1007, 9)
+  Lucky user
+ #endif
+#else
+  Lucky user
+#endif
+           ],
+           [gl_cv_func_strchrnul_works="guessing yes"],
+           [gl_cv_func_strchrnul_works="guessing no"])
+        ])
+      ])
+    case "$gl_cv_func_strchrnul_works" in
+      *yes) ;;
+      *) REPLACE_STRCHRNUL=1 ;;
+    esac
+  fi
+])
+
+# Prerequisites of lib/strchrnul.c.
+AC_DEFUN([gl_PREREQ_STRCHRNUL], [:])
diff --git a/gdb/gnulib/import/rawmemchr.c b/gdb/gnulib/import/rawmemchr.c
new file mode 100644
index 0000000..a6380ba
--- /dev/null
+++ b/gdb/gnulib/import/rawmemchr.c
@@ -0,0 +1,136 @@
+/* Searching in a string.
+   Copyright (C) 2008-2015 Free Software Foundation, Inc.
+
+   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 3 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, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <string.h>
+
+/* Find the first occurrence of C in S.  */
+void *
+rawmemchr (const void *s, int c_in)
+{
+  /* On 32-bit hardware, choosing longword to be a 32-bit unsigned
+     long instead of a 64-bit uintmax_t tends to give better
+     performance.  On 64-bit hardware, unsigned long is generally 64
+     bits already.  Change this typedef to experiment with
+     performance.  */
+  typedef unsigned long int longword;
+
+  const unsigned char *char_ptr;
+  const longword *longword_ptr;
+  longword repeated_one;
+  longword repeated_c;
+  unsigned char c;
+
+  c = (unsigned char) c_in;
+
+  /* Handle the first few bytes by reading one byte at a time.
+     Do this until CHAR_PTR is aligned on a longword boundary.  */
+  for (char_ptr = (const unsigned char *) s;
+       (size_t) char_ptr % sizeof (longword) != 0;
+       ++char_ptr)
+    if (*char_ptr == c)
+      return (void *) char_ptr;
+
+  longword_ptr = (const longword *) char_ptr;
+
+  /* All these elucidatory comments refer to 4-byte longwords,
+     but the theory applies equally well to any size longwords.  */
+
+  /* Compute auxiliary longword values:
+     repeated_one is a value which has a 1 in every byte.
+     repeated_c has c in every byte.  */
+  repeated_one = 0x01010101;
+  repeated_c = c | (c << 8);
+  repeated_c |= repeated_c << 16;
+  if (0xffffffffU < (longword) -1)
+    {
+      repeated_one |= repeated_one << 31 << 1;
+      repeated_c |= repeated_c << 31 << 1;
+      if (8 < sizeof (longword))
+        {
+          size_t i;
+
+          for (i = 64; i < sizeof (longword) * 8; i *= 2)
+            {
+              repeated_one |= repeated_one << i;
+              repeated_c |= repeated_c << i;
+            }
+        }
+    }
+
+  /* Instead of the traditional loop which tests each byte, we will
+     test a longword at a time.  The tricky part is testing if *any of
+     the four* bytes in the longword in question are equal to NUL or
+     c.  We first use an xor with repeated_c.  This reduces the task
+     to testing whether *any of the four* bytes in longword1 is zero.
+
+     We compute tmp =
+       ((longword1 - repeated_one) & ~longword1) & (repeated_one << 7).
+     That is, we perform the following operations:
+       1. Subtract repeated_one.
+       2. & ~longword1.
+       3. & a mask consisting of 0x80 in every byte.
+     Consider what happens in each byte:
+       - If a byte of longword1 is zero, step 1 and 2 transform it into 0xff,
+         and step 3 transforms it into 0x80.  A carry can also be propagated
+         to more significant bytes.
+       - If a byte of longword1 is nonzero, let its lowest 1 bit be at
+         position k (0 <= k <= 7); so the lowest k bits are 0.  After step 1,
+         the byte ends in a single bit of value 0 and k bits of value 1.
+         After step 2, the result is just k bits of value 1: 2^k - 1.  After
+         step 3, the result is 0.  And no carry is produced.
+     So, if longword1 has only non-zero bytes, tmp is zero.
+     Whereas if longword1 has a zero byte, call j the position of the least
+     significant zero byte.  Then the result has a zero at positions 0, ...,
+     j-1 and a 0x80 at position j.  We cannot predict the result at the more
+     significant bytes (positions j+1..3), but it does not matter since we
+     already have a non-zero bit at position 8*j+7.
+
+     The test whether any byte in longword1 is zero is equivalent
+     to testing whether tmp is nonzero.
+
+     This test can read beyond the end of a string, depending on where
+     C_IN is encountered.  However, this is considered safe since the
+     initialization phase ensured that the read will be aligned,
+     therefore, the read will not cross page boundaries and will not
+     cause a fault.  */
+
+  while (1)
+    {
+      longword longword1 = *longword_ptr ^ repeated_c;
+
+      if ((((longword1 - repeated_one) & ~longword1)
+           & (repeated_one << 7)) != 0)
+        break;
+      longword_ptr++;
+    }
+
+  char_ptr = (const unsigned char *) longword_ptr;
+
+  /* At this point, we know that one of the sizeof (longword) bytes
+     starting at char_ptr is == c.  On little-endian machines, we
+     could determine the first such byte without any further memory
+     accesses, just by looking at the tmp result from the last loop
+     iteration.  But this does not work on big-endian machines.
+     Choose code that works in both cases.  */
+
+  char_ptr = (unsigned char *) longword_ptr;
+  while (*char_ptr != c)
+    char_ptr++;
+  return (void *) char_ptr;
+}
diff --git a/gdb/gnulib/import/rawmemchr.valgrind b/gdb/gnulib/import/rawmemchr.valgrind
new file mode 100644
index 0000000..6363923
--- /dev/null
+++ b/gdb/gnulib/import/rawmemchr.valgrind
@@ -0,0 +1,12 @@
+# Suppress a valgrind message about use of uninitialized memory in rawmemchr().
+# This use is OK because it provides only a speedup.
+{
+    rawmemchr-value4
+    Memcheck:Value4
+    fun:rawmemchr
+}
+{
+    rawmemchr-value8
+    Memcheck:Value8
+    fun:rawmemchr
+}
diff --git a/gdb/gnulib/import/strchrnul.c b/gdb/gnulib/import/strchrnul.c
new file mode 100644
index 0000000..1000e83
--- /dev/null
+++ b/gdb/gnulib/import/strchrnul.c
@@ -0,0 +1,142 @@
+/* Searching in a string.
+   Copyright (C) 2003, 2007-2015 Free Software Foundation, Inc.
+
+   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 3 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, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <string.h>
+
+/* Find the first occurrence of C in S or the final NUL byte.  */
+char *
+strchrnul (const char *s, int c_in)
+{
+  /* On 32-bit hardware, choosing longword to be a 32-bit unsigned
+     long instead of a 64-bit uintmax_t tends to give better
+     performance.  On 64-bit hardware, unsigned long is generally 64
+     bits already.  Change this typedef to experiment with
+     performance.  */
+  typedef unsigned long int longword;
+
+  const unsigned char *char_ptr;
+  const longword *longword_ptr;
+  longword repeated_one;
+  longword repeated_c;
+  unsigned char c;
+
+  c = (unsigned char) c_in;
+  if (!c)
+    return rawmemchr (s, 0);
+
+  /* Handle the first few bytes by reading one byte at a time.
+     Do this until CHAR_PTR is aligned on a longword boundary.  */
+  for (char_ptr = (const unsigned char *) s;
+       (size_t) char_ptr % sizeof (longword) != 0;
+       ++char_ptr)
+    if (!*char_ptr || *char_ptr == c)
+      return (char *) char_ptr;
+
+  longword_ptr = (const longword *) char_ptr;
+
+  /* All these elucidatory comments refer to 4-byte longwords,
+     but the theory applies equally well to any size longwords.  */
+
+  /* Compute auxiliary longword values:
+     repeated_one is a value which has a 1 in every byte.
+     repeated_c has c in every byte.  */
+  repeated_one = 0x01010101;
+  repeated_c = c | (c << 8);
+  repeated_c |= repeated_c << 16;
+  if (0xffffffffU < (longword) -1)
+    {
+      repeated_one |= repeated_one << 31 << 1;
+      repeated_c |= repeated_c << 31 << 1;
+      if (8 < sizeof (longword))
+        {
+          size_t i;
+
+          for (i = 64; i < sizeof (longword) * 8; i *= 2)
+            {
+              repeated_one |= repeated_one << i;
+              repeated_c |= repeated_c << i;
+            }
+        }
+    }
+
+  /* Instead of the traditional loop which tests each byte, we will
+     test a longword at a time.  The tricky part is testing if *any of
+     the four* bytes in the longword in question are equal to NUL or
+     c.  We first use an xor with repeated_c.  This reduces the task
+     to testing whether *any of the four* bytes in longword1 or
+     longword2 is zero.
+
+     Let's consider longword1.  We compute tmp =
+       ((longword1 - repeated_one) & ~longword1) & (repeated_one << 7).
+     That is, we perform the following operations:
+       1. Subtract repeated_one.
+       2. & ~longword1.
+       3. & a mask consisting of 0x80 in every byte.
+     Consider what happens in each byte:
+       - If a byte of longword1 is zero, step 1 and 2 transform it into 0xff,
+         and step 3 transforms it into 0x80.  A carry can also be propagated
+         to more significant bytes.
+       - If a byte of longword1 is nonzero, let its lowest 1 bit be at
+         position k (0 <= k <= 7); so the lowest k bits are 0.  After step 1,
+         the byte ends in a single bit of value 0 and k bits of value 1.
+         After step 2, the result is just k bits of value 1: 2^k - 1.  After
+         step 3, the result is 0.  And no carry is produced.
+     So, if longword1 has only non-zero bytes, tmp is zero.
+     Whereas if longword1 has a zero byte, call j the position of the least
+     significant zero byte.  Then the result has a zero at positions 0, ...,
+     j-1 and a 0x80 at position j.  We cannot predict the result at the more
+     significant bytes (positions j+1..3), but it does not matter since we
+     already have a non-zero bit at position 8*j+7.
+
+     The test whether any byte in longword1 or longword2 is zero is equivalent
+     to testing whether tmp1 is nonzero or tmp2 is nonzero.  We can combine
+     this into a single test, whether (tmp1 | tmp2) is nonzero.
+
+     This test can read more than one byte beyond the end of a string,
+     depending on where the terminating NUL is encountered.  However,
+     this is considered safe since the initialization phase ensured
+     that the read will be aligned, therefore, the read will not cross
+     page boundaries and will not cause a fault.  */
+
+  while (1)
+    {
+      longword longword1 = *longword_ptr ^ repeated_c;
+      longword longword2 = *longword_ptr;
+
+      if (((((longword1 - repeated_one) & ~longword1)
+            | ((longword2 - repeated_one) & ~longword2))
+           & (repeated_one << 7)) != 0)
+        break;
+      longword_ptr++;
+    }
+
+  char_ptr = (const unsigned char *) longword_ptr;
+
+  /* At this point, we know that one of the sizeof (longword) bytes
+     starting at char_ptr is == 0 or == c.  On little-endian machines,
+     we could determine the first such byte without any further memory
+     accesses, just by looking at the tmp result from the last loop
+     iteration.  But this does not work on big-endian machines.
+     Choose code that works in both cases.  */
+
+  char_ptr = (unsigned char *) longword_ptr;
+  while (*char_ptr && (*char_ptr != c))
+    char_ptr++;
+  return (char *) char_ptr;
+}
diff --git a/gdb/gnulib/import/strchrnul.valgrind b/gdb/gnulib/import/strchrnul.valgrind
new file mode 100644
index 0000000..b14fa13
--- /dev/null
+++ b/gdb/gnulib/import/strchrnul.valgrind
@@ -0,0 +1,12 @@
+# Suppress a valgrind message about use of uninitialized memory in strchrnul().
+# This use is OK because it provides only a speedup.
+{
+    strchrnul-value4
+    Memcheck:Value4
+    fun:strchrnul
+}
+{
+    strchrnul-value8
+    Memcheck:Value8
+    fun:strchrnul
+}
diff --git a/gdb/gnulib/update-gnulib.sh b/gdb/gnulib/update-gnulib.sh
index 5d42f98..07de4c6 100755
--- a/gdb/gnulib/update-gnulib.sh
+++ b/gdb/gnulib/update-gnulib.sh
@@ -45,6 +45,7 @@ IMPORTED_GNULIB_MODULES="\
     readlink \
     rename \
     signal-h \
+    strchrnul \
     strstr \
     strtok_r \
     sys_stat \
diff --git a/gdb/remote.c b/gdb/remote.c
index b0303f6..8831b50 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -6387,16 +6387,6 @@ peek_stop_reply (ptid_t ptid)
 			 stop_reply_match_ptid_and_ws, &ptid);
 }
 
-/* Skip PACKET until the next semi-colon (or end of string).  */
-
-static char *
-skip_to_semicolon (char *p)
-{
-  while (*p != '\0' && *p != ';')
-    p++;
-  return p;
-}
-
 /* Helper for remote_parse_stop_reply.  Return nonzero if the substring
    starting with P and ending with PEND matches PREFIX.  */
 
@@ -6499,7 +6489,7 @@ Packet: '%s'\n"),
 	      /* The value part is documented as "must be empty",
 		 though we ignore it, in case we ever decide to make
 		 use of it in a backward compatible way.  */
-	      p = skip_to_semicolon (p1 + 1);
+	      p = strchrnul (p1 + 1, ';');
 	    }
 	  else if (strprefix (p, p1, "hwbreak"))
 	    {
@@ -6511,19 +6501,19 @@ Packet: '%s'\n"),
 		error (_("Unexpected hwbreak stop reason"));
 
 	      /* See above.  */
-	      p = skip_to_semicolon (p1 + 1);
+	      p = strchrnul (p1 + 1, ';');
 	    }
 	  else if (strprefix (p, p1, "library"))
 	    {
 	      event->ws.kind = TARGET_WAITKIND_LOADED;
-	      p = skip_to_semicolon (p1 + 1);
+	      p = strchrnul (p1 + 1, ';');
 	    }
 	  else if (strprefix (p, p1, "replaylog"))
 	    {
 	      event->ws.kind = TARGET_WAITKIND_NO_HISTORY;
 	      /* p1 will indicate "begin" or "end", but it makes
 		 no difference for now, so ignore it.  */
-	      p = skip_to_semicolon (p1 + 1);
+	      p = strchrnul (p1 + 1, ';');
 	    }
 	  else if (strprefix (p, p1, "core"))
 	    {
@@ -6545,7 +6535,7 @@ Packet: '%s'\n"),
 	  else if (strprefix (p, p1, "vforkdone"))
 	    {
 	      event->ws.kind = TARGET_WAITKIND_VFORK_DONE;
-	      p = skip_to_semicolon (p1 + 1);
+	      p = strchrnul (p1 + 1, ';');
 	    }
 	  else if (strprefix (p, p1, "exec"))
 	    {
@@ -6574,7 +6564,7 @@ Packet: '%s'\n"),
 	  else if (strprefix (p, p1, "create"))
 	    {
 	      event->ws.kind = TARGET_WAITKIND_THREAD_CREATED;
-	      p = skip_to_semicolon (p1 + 1);
+	      p = strchrnul (p1 + 1, ';');
 	    }
 	  else
 	    {
@@ -6583,7 +6573,7 @@ Packet: '%s'\n"),
 
 	      if (skipregs)
 		{
-		  p = skip_to_semicolon (p1 + 1);
+		  p = strchrnul (p1 + 1, ';');
 		  p++;
 		  continue;
 		}
@@ -6620,7 +6610,7 @@ Packet: '%s'\n"),
 		{
 		  /* Not a number.  Silently skip unknown optional
 		     info.  */
-		  p = skip_to_semicolon (p1 + 1);
+		  p = strchrnul (p1 + 1, ';');
 		}
 	    }
 
