GCC高版本编译低版本GCC报错cfns.gperf:101:1: error: ‘const char* libc_name_p(const char*, unsigned int)‘ redecl

GCC高版本编译低版本GCC报错：

[INFO ]  =================================================================
[INFO ]  Installing final gcc compiler
[EXTRA]    Configuring final gcc compiler
[EXTRA]    Building final gcc compiler
[ERROR]    cfns.gperf:101:1: error: 'const char* libc_name_p(const char*, unsigned int)' redeclared inline with 'gnu_inline' attribute
[ERROR]    make[3]: *** [cp/except.o] Error 1
[ERROR]    make[2]: *** [all-gcc] Error 2
[ERROR]    make[1]: *** [all] Error 2
[ERROR]   

解决办法，修改要编译的GCC代码，参考链接如下

https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=ec1cc0263f156f70693a62cf17b254a0029f4852

+号表示增添的代码，-号表示删除的代码

gcc/cp/ChangeLog		patch | blob | blame | history
gcc/cp/Make-lang.in		patch | blob | blame | history
gcc/cp/cfns.gperf		patch | blob | blame | history
gcc/cp/cfns.h		patch | blob | blame | history
gcc/cp/except.c		patch | blob | blame | history

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog




@@ -1,3 +1,12 @@
+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.
+
 2016-02-19  Jakub Jelinek  <jakub@redhat.com>
 
        PR c++/69850

 

diff --git a/gcc/cp/Make-lang.in b/gcc/cp/Make-lang.in
index 671ce12..2286c64 100644 (file)
--- a/gcc/cp/Make-lang.in
+++ b/gcc/cp/Make-lang.in




@@ -112,7 +112,7 @@ 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 2784edc..8d7f015 100644 (file)
--- a/gcc/cp/cfns.gperf
+++ b/gcc/cp/cfns.gperf




@@ -1,3 +1,5 @@
+%language=C++
+%define class-name libc_name
 %{
 /* Copyright (C) 2000-2016 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 d8e02c9..9a37249 100644 (file)
--- 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) 2000-2016 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 c73a16b..5336710 100644 (file)
--- a/gcc/cp/except.c
+++ b/gcc/cp/except.c



@@ -1040,7 +1040,8 @@ 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