From 5dce741e00f86a08a4c174fb3605d896f210ab52 Mon Sep 17 00:00:00 2001
From: Bernd Edlinger <bernd.edlinger@hotmail.de>
Date: Wed, 27 Jul 2016 13:30:03 +0300
Subject: [PATCH] 2016-02-19  Jakub Jelinek  <jakub@redhat.com>  Bernd Edlinger
  <bernd.edlinger@hotmail.de>

        * Make-lang.in: Invoke gperf with -L C++.
        * cfns.gperf: Remove prototypes for hash and libc_name_p
        inlines.
        * cfns.h: Regenerated.
        * except.c (nothrow_libfn_p): Adjust.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233572138bc75d-0d04-0410-961f-82ee72b054a4

This patch fixes building of gcc-4.x by gcc-6.x, for more details see
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69959

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
---
 gcc/cp/Make-lang.in |  2 +-
 gcc/cp/cfns.gperf   | 10 ++--------
 gcc/cp/cfns.h       | 41 ++++++++++++++---------------------------
 gcc/cp/except.c     |  3 ++-
 4 files changed, 19 insertions(+), 37 deletions(-)

diff --git a/gcc/cp/Make-lang.in b/gcc/cp/Make-lang.in
index dce523a..36a1a97 100644
--- a/gcc/cp/Make-lang.in
+++ b/gcc/cp/Make-lang.in
@@ -115,7 +115,7 @@ else
 # deleting the $(srcdir)/cp/cfns.h file.
 $(srcdir)/cp/cfns.h:
 endif
-	gperf -o -C -E -k '1-6,$$' -j1 -D -N 'libc_name_p' -L ANSI-C \
+	gperf -o -C -E -k '1-6,$$' -j1 -D -N 'libc_name_p' -L C++ \
 		$(srcdir)/cp/cfns.gperf --output-file $(srcdir)/cp/cfns.h
 
 #
diff --git a/gcc/cp/cfns.gperf b/gcc/cp/cfns.gperf
index c4c4e2a..5c40933 100644
--- a/gcc/cp/cfns.gperf
+++ b/gcc/cp/cfns.gperf
@@ -1,3 +1,5 @@
+%language=C++
+%define class-name libc_name
 %{
 /* Copyright (C) 2000-2013 Free Software Foundation, Inc.
 
@@ -16,14 +18,6 @@ for more details.
 You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
-#ifdef __GNUC__
-__inline
-#endif
-static unsigned int hash (const char *, unsigned int);
-#ifdef __GNUC__
-__inline
-#endif
-const char * libc_name_p (const char *, unsigned int);
 %}
 %%
 # The standard C library functions, for feeding to gperf; the result is used
diff --git a/gcc/cp/cfns.h b/gcc/cp/cfns.h
index 42dd3cf..6c79864 100644
--- a/gcc/cp/cfns.h
+++ b/gcc/cp/cfns.h
@@ -1,5 +1,5 @@
-/* ANSI-C code produced by gperf version 3.0.3 */
-/* Command-line: gperf -o -C -E -k '1-6,$' -j1 -D -N libc_name_p -L ANSI-C cfns.gperf  */
+/* C++ code produced by gperf version 3.0.4 */
+/* Command-line: gperf -o -C -E -k '1-6,$' -j1 -D -N libc_name_p -L C++ --output-file cfns.h cfns.gperf  */
 
 #if !((' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \
       && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \
@@ -28,7 +28,7 @@
 #error "gperf generated tables don't work with this execution character set. Please report a bug to <bug-gnu-gperf@gnu.org>."
 #endif
 
-#line 1 "cfns.gperf"
+#line 3 "cfns.gperf"
 
 /* Copyright (C) 2000-2013 Free Software Foundation, Inc.
 
@@ -47,25 +47,18 @@ for more details.
 You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING3.  If not see
 <http://www.gnu.org/licenses/>.  */
-#ifdef __GNUC__
-__inline
-#endif
-static unsigned int hash (const char *, unsigned int);
-#ifdef __GNUC__
-__inline
-#endif
-const char * libc_name_p (const char *, unsigned int);
 /* maximum key range = 391, duplicates = 0 */
 
-#ifdef __GNUC__
-__inline
-#else
-#ifdef __cplusplus
-inline
-#endif
-#endif
-static unsigned int
-hash (register const char *str, register unsigned int len)
+class libc_name
+{
+private:
+  static inline unsigned int hash (const char *str, unsigned int len);
+public:
+  static const char *libc_name_p (const char *str, unsigned int len);
+};
+
+inline unsigned int
+libc_name::hash (register const char *str, register unsigned int len)
 {
   static const unsigned short asso_values[] =
     {
@@ -122,14 +115,8 @@ hash (register const char *str, register unsigned int len)
   return hval + asso_values[(unsigned char)str[len - 1]];
 }
 
-#ifdef __GNUC__
-__inline
-#ifdef __GNUC_STDC_INLINE__
-__attribute__ ((__gnu_inline__))
-#endif
-#endif
 const char *
-libc_name_p (register const char *str, register unsigned int len)
+libc_name::libc_name_p (register const char *str, register unsigned int len)
 {
   enum
     {
diff --git a/gcc/cp/except.c b/gcc/cp/except.c
index 604f274..c3298cb 100644
--- a/gcc/cp/except.c
+++ b/gcc/cp/except.c
@@ -1025,7 +1025,8 @@ nothrow_libfn_p (const_tree fn)
      unless the system headers are playing rename tricks, and if
      they are, we don't want to be confused by them.  */
   id = DECL_NAME (fn);
-  return !!libc_name_p (IDENTIFIER_POINTER (id), IDENTIFIER_LENGTH (id));
+  return !!libc_name::libc_name_p (IDENTIFIER_POINTER (id),
+				   IDENTIFIER_LENGTH (id));
 }
 
 /* Returns nonzero if an exception of type FROM will be caught by a
-- 
2.7.4

