initial 5.1.0 patchset based on last 4.9.2 patchset

26 files changed, 1975 insertions, 0 deletions

diff --git a/5.1.0/gentoo/05_all_gcc-spec-env.patch b/5.1.0/gentoo/05_all_gcc-spec-env.patch
new file mode 100644
index 0000000..214638e
--- /dev/null
+++ b/5.1.0/gentoo/05_all_gcc-spec-env.patch
@@ -0,0 +1,87 @@
+2013-08-22  Magnus Granberg <zorry@gentoo.org>
+
+	* gcc/gcc.c (main): Add support for external spec file via the GCC_SPECS env var
+	and move the process of the user specifed specs.
+
+	This allows us to easily control pie/ssp defaults with gcc-config profiles.
+	Original patch by Rob Holland
+	Extended to support multiple entries separated by ':' by Kevin F. Quinn
+	Modified to use getenv instead of poisoned GET_ENVIRONMENT by Ryan Hill
+	Modified to process the GCC_SPECS env var befor DRIVER_SELF_SPECS by Magnus Granberg
+
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -6427,6 +6428,48 @@ main (int argc, char **argv)
+     do_option_spec (option_default_specs[i].name,
+ 		    option_default_specs[i].spec);
+ 
++#if !(defined (__MSDOS__) || defined (OS2) || defined (VMS) || defined (WIN32))
++  /* Add specs listed in GCC_SPECS.  Note; in the process of separating
++   * each spec listed, the string is overwritten at token boundaries
++   * (':') with '\0', an effect of strtok_r().
++   */
++  specs_file = getenv ("GCC_SPECS");
++  if (specs_file && (strlen(specs_file) > 0))
++    {
++      char *spec, *saveptr;
++      for (spec=strtok_r(specs_file,":",&saveptr);
++           spec!=NULL;
++           spec=strtok_r(NULL,":",&saveptr))
++        {
++          struct user_specs *user = (struct user_specs *)
++            xmalloc (sizeof (struct user_specs));
++          user->next = (struct user_specs *) 0;
++          user->filename = spec;
++          if (user_specs_tail)
++            user_specs_tail->next = user;
++          else
++            user_specs_head = user;
++          user_specs_tail = user;
++        }
++    }
++#endif
++  /* Process any user specified specs in the order given on the command
++   *     line.  */
++  for (struct user_specs *uptr = user_specs_head; uptr; uptr = uptr->next)
++    {
++      char *filename = find_a_file (&startfile_prefixes, uptr->filename,
++        R_OK, true);
++      read_specs (filename ? filename : uptr->filename, false, true);
++    }
++  /* Process any user self specs.  */
++  {
++    struct spec_list *sl;
++    for (sl = specs; sl; sl = sl->next)
++      if (sl->name_len == sizeof "self_spec" - 1
++          && !strcmp (sl->name, "self_spec"))
++        do_self_spec (*sl->ptr_spec);
++  }
++
+   /* Process DRIVER_SELF_SPECS, adding any new options to the end
+      of the command line.  */
+ 
+@@ -6535,24 +6578,6 @@ main (int argc, char **argv)
+ 			      PREFIX_PRIORITY_LAST, 0, 1);
+     }
+ 
+-  /* Process any user specified specs in the order given on the command
+-     line.  */
+-  for (struct user_specs *uptr = user_specs_head; uptr; uptr = uptr->next)
+-    {
+-      char *filename = find_a_file (&startfile_prefixes, uptr->filename,
+-				    R_OK, true);
+-      read_specs (filename ? filename : uptr->filename, false, true);
+-    }
+-
+-  /* Process any user self specs.  */
+-  {
+-    struct spec_list *sl;
+-    for (sl = specs; sl; sl = sl->next)
+-      if (sl->name_len == sizeof "self_spec" - 1
+-	  && !strcmp (sl->name, "self_spec"))
+-	do_self_spec (*sl->ptr_spec);
+-  }
+-
+   if (compare_debug)
+     {
+       enum save_temps save;
diff --git a/5.1.0/gentoo/09_all_default-ssp.patch b/5.1.0/gentoo/09_all_default-ssp.patch
new file mode 100644
index 0000000..50e2645
--- /dev/null
+++ b/5.1.0/gentoo/09_all_default-ssp.patch
@@ -0,0 +1,261 @@
+2014-04-27  Magnus Granberg  <zorry@gentoo.org>
+
+	Patch orig: Debian/Ubuntu
+	# 484714
+	We Add -fstack-protector-strong as default and change
+	ssp-buffer-size
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -3238,6 +3238,9 @@ case $build in
+     esac ;;
+ esac
+ 
++# Needed when we build with -fstack-protector as default.
++stage1_cflags="$stage1_cflags -fno-stack-protector"
++
+ AC_SUBST(stage1_cflags)
+ 
+ # Enable --enable-checking in stage1 of the compiler.
+--- a/configure
++++ b/configure
+@@ -14453,7 +14453,8 @@ case $build in
+     esac ;;
+ esac
+ 
+-
++# Needed when we build with -fstack-protector as default.
++stage1_cflags="$stage1_cflags -fno-stack-protector"
+ 
+ # Enable --enable-checking in stage1 of the compiler.
+ # Check whether --enable-stage1-checking was given.
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -362,7 +362,7 @@ BUILD_PREFIX_1 = @BUILD_PREFIX_1@
+ 
+ # Flags to pass to stage2 and later makes.  They are defined
+ # here so that they can be overridden by Makefile fragments.
+-BOOT_CFLAGS= -g -O2
++BOOT_CFLAGS= -g -O2 -fno-stack-protector
+ BOOT_LDFLAGS=
+ BOOT_ADAFLAGS= -gnatpg
+ 
+@@ -408,9 +408,9 @@ GNATMAKE = @GNATMAKE@
+ 
+ CFLAGS = @CFLAGS@
+ LDFLAGS = @LDFLAGS@
+-LIBCFLAGS = $(CFLAGS)
++LIBCFLAGS = $(CFLAGS) -fno-stack-protector
+ CXXFLAGS = @CXXFLAGS@
+-LIBCXXFLAGS = $(CXXFLAGS) -fno-implicit-templates
++LIBCXXFLAGS = $(CXXFLAGS) -fno-implicit-templates -fno-stack-protector
+ GOCFLAGS = $(CFLAGS)
+ 
+ TFLAGS =
+--- a/gcc/doc/invoke.texi
++++ b/gcc/doc/invoke.texi
+@@ -9239,6 +9251,11 @@ Like @option{-fstack-protector} but incl
+ be protected --- those that have local array definitions, or have
+ references to local frame addresses.
+ 
++NOTE: In Gentoo GCC 4.9.0 and later versions this option is enabled by default
++for C, C++, ObjC, ObjC++, if neither @option{-fno-stack-protector}, 
++@option{-nostdlib}, @option{-ffreestanding}, @option{-fstack-protector}, 
++@option{-fstack-protector-strong}or @option{-fstack-protector-all}are found.
++
+ @item -fsection-anchors
+ @opindex fsection-anchors
+ Try to reduce the number of symbolic address calculations by using
+@@ -9461,6 +9465,9 @@
+ The minimum size of buffers (i.e.@: arrays) that receive stack smashing
+ protection when @option{-fstack-protection} is used.
+ 
++NOTE: In Gentoo this is change from "8" to "4", to increase
++the number of functions protected by the stack protector.
++
+ @item max-jump-thread-duplication-stmts
+ Maximum number of statements allowed in a block that needs to be
+ duplicated when threading jumps.
+--- a/gcc/cp/lang-specs.h
++++ b/gcc/cp/lang-specs.h
+@@ -46,7 +46,7 @@ along with GCC; see the file COPYING3.  If not see
+ 		%(cpp_options) %2 -o %{save-temps*:%b.ii} %{!save-temps*:%g.ii} \n}\
+       cc1plus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(ssp_default) %2\
+ 	%{!fsyntax-only:%{!fdump-ada-spec*:-o %g.s %{!o*:--output-pch=%i.gch}\
+         %W{o*:--output-pch=%*}}%V}}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+@@ -57,11 +57,11 @@ along with GCC; see the file COPYING3.  If not see
+ 		%(cpp_options) %2 -o %{save-temps*:%b.ii} %{!save-temps*:%g.ii} \n}\
+       cc1plus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.ii} %{!save-temps*:%g.ii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(ssp_default) %2\
+        %{!fsyntax-only:%(invoke_as)}}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+   {".ii", "@c++-cpp-output", 0, 0, 0},
+   {"@c++-cpp-output",
+    "%{!M:%{!MM:%{!E:\
+-    cc1plus -fpreprocessed %i %(cc1_options) %2\
++    cc1plus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\
+     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+--- a/gcc/gcc.c
++++ b/gcc/gcc.c
+@@ -651,6 +651,19 @@ proper position among the other output files.  */
+ #define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
+ #endif
+ 
++#ifndef SSP_DEFAULT_SPEC
++#if defined ( TARGET_LIBC_PROVIDES_SSP ) && defined ( EFAULT_SSP )
++#define SSP_DEFAULT_SPEC "%{fno-stack-protector|fstack-protector| \
++  fstack-protector-strong|fstack-protector-all| \
++  ffreestanding|nostdlib:;:-fstack-protector-strong}"
++/* Add -fno-stack-protector for the use of gcc-specs-ssp.  */
++#define CC1_SSP_DEFAULT_SPEC "%{!fno-stack-protector:}"
++#else
++#define SSP_DEFAULT_SPEC ""
++#define CC1_SSP_DEFAULT_SPEC ""
++#endif
++#endif
++
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+ #define LINK_SSP_SPEC "%{fstack-protector:}"
+@@ -771,7 +781,7 @@ proper position among the other output f
+ 
+ static const char *asm_debug = ASM_DEBUG_SPEC;
+ static const char *cpp_spec = CPP_SPEC;
+-static const char *cc1_spec = CC1_SPEC;
++static const char *cc1_spec = CC1_SPEC CC1_SSP_DEFAULT_SPEC;
+ static const char *cc1plus_spec = CC1PLUS_SPEC;
+ static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
+ static const char *link_ssp_spec = LINK_SSP_SPEC;
+@@ -777,6 +785,8 @@ static const char *cc1_spec = CC1_SPEC;
+ static const char *cc1plus_spec = CC1PLUS_SPEC;
+ static const char *link_gcc_c_sequence_spec = LINK_GCC_C_SEQUENCE_SPEC;
+ static const char *link_ssp_spec = LINK_SSP_SPEC;
++static const char *ssp_default_spec = SSP_DEFAULT_SPEC;
++static const char *cc1_ssp_default_spec = CC1_SSP_DEFAULT_SPEC;
+ static const char *asm_spec = ASM_SPEC;
+ static const char *asm_final_spec = ASM_FINAL_SPEC;
+ static const char *link_spec = LINK_SPEC;
+@@ -835,7 +844,7 @@ static const char *cpp_unique_options =
+ static const char *cpp_options =
+ "%(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w}\
+  %{f*} %{g*:%{!g0:%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*}\
+- %{undef} %{save-temps*:-fpch-preprocess}";
++ %{undef} %{save-temps*:-fpch-preprocess} %(ssp_default)";
+ 
+ /* This contains cpp options which are not passed when the preprocessor
+    output will be used by another program.  */
+@@ -1015,9 +1024,9 @@ static const struct compiler default_compilers[] =
+       %{save-temps*|traditional-cpp|no-integrated-cpp:%(trad_capable_cpp) \
+ 	  %(cpp_options) -o %{save-temps*:%b.i} %{!save-temps*:%g.i} \n\
+ 	    cc1 -fpreprocessed %{save-temps*:%b.i} %{!save-temps*:%g.i} \
+-	  %(cc1_options)}\
++	  %(cc1_options) %(ssp_default)}\
+       %{!save-temps*:%{!traditional-cpp:%{!no-integrated-cpp:\
+-	  cc1 %(cpp_unique_options) %(cc1_options)}}}\
++	  cc1 %(cpp_unique_options) %(cc1_options) %(ssp_default)}}}\
+       %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 1},
+   {"-",
+    "%{!E:%e-E or -x required when input is from standard input}\
+@@ -1040,7 +1049,7 @@ static const struct compiler default_compilers[] =
+                     %W{o*:--output-pch=%*}}%V}}}}}}", 0, 0, 0},
+   {".i", "@cpp-output", 0, 0, 0},
+   {"@cpp-output",
+-   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
++   "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %(ssp_default) %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {".s", "@assembler", 0, 0, 0},
+   {"@assembler",
+    "%{!M:%{!MM:%{!E:%{!S:as %(asm_debug) %(asm_options) %i %A }}}}", 0, 0, 0},
+@@ -1267,6 +1276,8 @@ static struct spec_list static_specs[] =
+   INIT_STATIC_SPEC ("cc1plus",			&cc1plus_spec),
+   INIT_STATIC_SPEC ("link_gcc_c_sequence",	&link_gcc_c_sequence_spec),
+   INIT_STATIC_SPEC ("link_ssp",			&link_ssp_spec),
++  INIT_STATIC_SPEC ("ssp_default",		&ssp_default_spec),
++  INIT_STATIC_SPEC ("cc1_ssp_default",	&cc1_ssp_default_spec),
+   INIT_STATIC_SPEC ("endfile",			&endfile_spec),
+   INIT_STATIC_SPEC ("link",			&link_spec),
+   INIT_STATIC_SPEC ("lib",			&lib_spec),
+--- a/gcc/objc/lang-specs.h
++++ b/gcc/objc/lang-specs.h
+@@ -29,9 +29,9 @@ along with GCC; see the file COPYING3.  If not see
+ 	%{traditional|traditional-cpp:\
+ %eGNU Objective C no longer supports traditional compilation}\
+ 	%{save-temps*|no-integrated-cpp:cc1obj -E %(cpp_options) -o %{save-temps*:%b.mi} %{!save-temps*:%g.mi} \n\
+-	    cc1obj -fpreprocessed %{save-temps*:%b.mi} %{!save-temps*:%g.mi} %(cc1_options) %{print-objc-runtime-info} %{gen-decls}}\
++	    cc1obj -fpreprocessed %{save-temps*:%b.mi} %{!save-temps*:%g.mi} %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}}\
+ 	%{!save-temps*:%{!no-integrated-cpp:\
+-	    cc1obj %(cpp_unique_options) %(cc1_options) %{print-objc-runtime-info} %{gen-decls}}}\
++	    cc1obj %(cpp_unique_options) %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}}}\
+         %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objective-c-header",
+      "%{E|M|MM:cc1obj -E %{traditional|traditional-cpp:-traditional-cpp}\
+@@ -40,18 +40,18 @@ along with GCC; see the file COPYING3.  If not see
+ 	%{traditional|traditional-cpp:\
+ %eGNU Objective C no longer supports traditional compilation}\
+ 	%{save-temps*|no-integrated-cpp:cc1obj -E %(cpp_options) -o %{save-temps*:%b.mi} %{!save-temps*:%g.mi} \n\
+-	    cc1obj -fpreprocessed %b.mi %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++	    cc1obj -fpreprocessed %b.mi %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\
+                         -o %g.s %{!o*:--output-pch=%i.gch}\
+                         %W{o*:--output-pch=%*}%V}\
+ 	%{!save-temps*:%{!no-integrated-cpp:\
+-	    cc1obj %(cpp_unique_options) %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++	    cc1obj %(cpp_unique_options) %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\
+                         -o %g.s %{!o*:--output-pch=%i.gch}\
+                         %W{o*:--output-pch=%*}%V}}}}}", 0, 0, 0},
+   {".mi", "@objective-c-cpp-output", 0, 0, 0},
+   {"@objective-c-cpp-output",
+-     "%{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++     "%{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\
+ 			     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objc-cpp-output",
+       "%nobjc-cpp-output is deprecated; please use objective-c-cpp-output instead\n\
+-       %{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %{print-objc-runtime-info} %{gen-decls}\
++       %{!M:%{!MM:%{!E:cc1obj -fpreprocessed %i %(cc1_options) %(ssp_default) %{print-objc-runtime-info} %{gen-decls}\
+ 			     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+--- a/gcc/objcp/lang-specs.h
++++ b/gcc/objcp/lang-specs.h
+@@ -36,7 +36,7 @@ along with GCC; see the file COPYING3.  If not see
+ 		%(cpp_options) %2 -o %{save-temps*:%b.mii} %{!save-temps*:%g.mii} \n}\
+       cc1objplus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.mii} %{!save-temps*:%g.mii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(ssp_default) %2\
+         -o %g.s %{!o*:--output-pch=%i.gch} %W{o*:--output-pch=%*}%V}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+   {"@objective-c++",
+@@ -46,16 +46,16 @@ along with GCC; see the file COPYING3.  If not see
+ 		%(cpp_options) %2 -o %{save-temps*:%b.mii} %{!save-temps*:%g.mii} \n}\
+       cc1objplus %{save-temps*|no-integrated-cpp:-fpreprocessed %{save-temps*:%b.mii} %{!save-temps*:%g.mii}}\
+ 	      %{!save-temps*:%{!no-integrated-cpp:%(cpp_unique_options)}}\
+-	%(cc1_options) %2\
++	%(cc1_options) %(ssp_default) %2\
+        %{!fsyntax-only:%(invoke_as)}}}}",
+      CPLUSPLUS_CPP_SPEC, 0, 0},
+   {".mii", "@objective-c++-cpp-output", 0, 0, 0},
+   {"@objective-c++-cpp-output",
+    "%{!M:%{!MM:%{!E:\
+-    cc1objplus -fpreprocessed %i %(cc1_options) %2\
++    cc1objplus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\
+     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+   {"@objc++-cpp-output",
+    "%nobjc++-cpp-output is deprecated; please use objective-c++-cpp-output instead\n\
+     %{!M:%{!MM:%{!E:\
+-    cc1objplus -fpreprocessed %i %(cc1_options) %2\
++    cc1objplus -fpreprocessed %i %(cc1_options) %(ssp_default) %2\
+     %{!fsyntax-only:%(invoke_as)}}}}", 0, 0, 0},
+--- a/gcc/params.def
++++ b/gcc/params.def
+@@ -662,7 +662,7 @@ DEFPARAM (PARAM_INTEGER_SHARE_LIMIT,
+ DEFPARAM (PARAM_SSP_BUFFER_SIZE,
+ 	  "ssp-buffer-size",
+ 	  "The lower bound for a buffer to be considered for stack smashing protection",
+-	  8, 1, 0)
++	  4, 1, 0)
+ 
+ /* When we thread through a block we have to make copies of the
+    statements within the block.  Clearly for large blocks the code
diff --git a/5.1.0/gentoo/10_all_default-fortify-source.patch b/5.1.0/gentoo/10_all_default-fortify-source.patch
new file mode 100644
index 0000000..ad2f2b1
--- /dev/null
+++ b/5.1.0/gentoo/10_all_default-fortify-source.patch
@@ -0,0 +1,29 @@
+Enable -D_FORTIFY_SOURCE=2 by default.
+
+
+--- a/gcc/c-family/c-cppbuiltin.c
++++ b/gcc/c-family/c-cppbuiltin.c
+@@ -951,6 +951,9 @@ c_cpp_builtins (cpp_reader *pfile)
+   builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
+   builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
+ 
++  /* Fortify Source enabled by default w/optimization.  */
++  cpp_define (pfile, "_FORTIFY_SOURCE=((defined __OPTIMIZE__ && __OPTIMIZE__ > 0) ? 2 : 0)");
++
+   /* Misc.  */
+   if (flag_gnu89_inline)
+     cpp_define (pfile, "__GNUC_GNU_INLINE__");
+--- a/gcc/doc/gcc.info
++++ b/gcc/doc/gcc.info
+@@ -6255,6 +6255,11 @@ find out the exact set of optimizations that are enabled at each level.
+      Please note the warning under '-fgcse' about invoking '-O2' on
+      programs that use computed gotos.
+ 
++     NOTE: In Gentoo, `-D_FORTIFY_SOURCE=2' is set by default, and is
++     activated when `-O' is set to 2 or higher.  This enables additional
++     compile-time and run-time checks for several libc functions.  To disable,
++     specify either `-U_FORTIFY_SOURCE' or `-D_FORTIFY_SOURCE=0'.
++
+ '-O3'
+      Optimize yet more.  '-O3' turns on all optimizations specified by
+      '-O2' and also turns on the '-finline-functions',
diff --git a/5.1.0/gentoo/11_all_default-warn-format-security.patch b/5.1.0/gentoo/11_all_default-warn-format-security.patch
new file mode 100644
index 0000000..ee6c7c4
--- /dev/null
+++ b/5.1.0/gentoo/11_all_default-warn-format-security.patch
@@ -0,0 +1,43 @@
+Enable -Wformat and -Wformat-security by default.
+
+
+--- a/gcc/c-family/c.opt
++++ b/gcc/c-family/c.opt
+@@ -412,7 +412,7 @@ C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warning LangEnabledBy(C ObjC C++ O
+ Warn about format strings that are not literals
+ 
+ Wformat-security
+-C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
++C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+ Warn about possible security problems with format functions
+ 
+ Wformat-y2k
+@@ -424,7 +424,7 @@ C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++
+ Warn about zero-length formats
+ 
+ Wformat=
+-C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
++C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0)
+ Warn about printf/scanf/strftime/strfmon format string anomalies
+ 
+ Wignored-qualifiers
+--- a/gcc/doc/gcc.info
++++ b/gcc/doc/gcc.info
+@@ -3451,6 +3451,8 @@ compiler warns that an unrecognized option is present.
+           '-Wno-format-contains-nul', '-Wno-format-extra-args', and
+           '-Wno-format-zero-length'.  '-Wformat' is enabled by '-Wall'.
+ 
++          This option is enabled by default in Gentoo.
++
+      '-Wno-format-contains-nul'
+           If '-Wformat' is specified, do not warn about format strings
+           that contain NUL bytes.
+@@ -3496,6 +3498,8 @@ compiler warns that an unrecognized option is present.
+           future warnings may be added to '-Wformat-security' that are
+           not included in '-Wformat-nonliteral'.)
+ 
++          This option is enabled by default in Gentoo.
++
+      '-Wformat-y2k'
+           If '-Wformat' is specified, also warn about 'strftime' formats
+           that may yield only a two-digit year.
diff --git a/5.1.0/gentoo/12_all_default-warn-trampolines.patch b/5.1.0/gentoo/12_all_default-warn-trampolines.patch
new file mode 100644
index 0000000..9ab4378
--- /dev/null
+++ b/5.1.0/gentoo/12_all_default-warn-trampolines.patch
@@ -0,0 +1,25 @@
+Enable -Wtrampolines by default.
+
+
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -648,7 +648,7 @@ Common Var(warn_system_headers) Warning
+ Do not suppress warnings from system headers
+ 
+ Wtrampolines
+-Common Var(warn_trampolines) Warning
++Common Var(warn_trampolines) Init(1) Warning
+ Warn whenever a trampoline is generated
+ 
+ Wtype-limits
+--- a/gcc/doc/gcc.info
++++ b/gcc/doc/gcc.info
+@@ -4021,6 +4021,8 @@ compiler warns that an unrecognized option is present.
+      and thus requires the stack to be made executable in order for the
+      program to work properly.
+ 
++     This warning is enabled by default in Gentoo.
++
+ '-Wfloat-equal'
+      Warn if floating-point values are used in equality comparisons.
+ 
diff --git a/5.1.0/gentoo/20_all_msgfmt-libstdc++-link.patch b/5.1.0/gentoo/20_all_msgfmt-libstdc++-link.patch
new file mode 100644
index 0000000..a70ea50
--- /dev/null
+++ b/5.1.0/gentoo/20_all_msgfmt-libstdc++-link.patch
@@ -0,0 +1,39 @@
+Ensure that msgfmt doesn't encounter problems during gcc bootstrapping.
+
+Solves error messages like the following:
+
+msgfmt: /var/tmp/portage/sys-devel/gcc-4.1.2/work/build/./gcc/libgcc_s.so.1: version `GCC_4.2.0' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/libstdc++.so.6)
+
+The libgcc_s.so used during build doesn't satisfy the needs of the
+libstdc++.so that msgfmt is linked against. On the other hand, msgfmt
+is used as a stand-alone application here, and what library it uses
+behind the scenes is of no concern to the gcc build process.
+Therefore, simply invoking it "as usual", i.e. without any special
+library path, will make it work as expected here.
+
+2011-09-19 Martin von Gagern
+
+References:
+https://bugs.gentoo.org/372377
+https://bugs.gentoo.org/295480
+
+--- gcc-4.1.2.orig/libstdc++-v3/po/Makefile.am
++++ gcc-4.1.2/libstdc++-v3/po/Makefile.am
+@@ -39,6 +39,7 @@ MSGFMT = msgfmt
+ EXTRA_DIST = string_literals.cc POTFILES.in $(PACKAGE).pot $(LOCALE_IN)
+ 
+ .po.mo:
++	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
+--- gcc-4.1.2.orig/libstdc++-v3/po/Makefile.in
++++ gcc-4.1.2/libstdc++-v3/po/Makefile.in
+@@ -419,6 +419,7 @@ uninstall-am: uninstall-info-am
+ 
+ 
+ .po.mo:
++	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
diff --git a/5.1.0/gentoo/25_all_alpha-mieee-default.patch b/5.1.0/gentoo/25_all_alpha-mieee-default.patch
new file mode 100644
index 0000000..9f99434
--- /dev/null
+++ b/5.1.0/gentoo/25_all_alpha-mieee-default.patch
@@ -0,0 +1,31 @@
+Set the default behavior on alpha to use -mieee since the large majority of
+time we want this (bad/weird things can happen with packages built without
+it).
+
+To satisfy those people who may not want -mieee forced on them all the time,
+we also provide -mno-ieee.
+
+Patch by Mike Frysinger <vapier@gentoo.org>
+
+--- a/gcc/config/alpha/alpha.h
++++ b/gcc/config/alpha/alpha.h
+@@ -96,6 +96,8 @@ along with GCC; see the file COPYING3.  If not see
+   while (0)
+ #endif
+ 
++#define CPP_SPEC "%{!no-ieee:-mieee}"
++
+ /* Run-time compilation parameters selecting different hardware subsets.  */
+ 
+ /* Which processor to schedule for. The cpu attribute defines a list that
+--- a/gcc/config/alpha/alpha.opt
++++ b/gcc/config/alpha/alpha.opt
+@@ -39,7 +39,7 @@ Target RejectNegative Mask(IEEE_CONFORMANT)
+ Request IEEE-conformant math library routines (OSF/1)
+ 
+ mieee
+-Target Report RejectNegative Mask(IEEE)
++Target Report Mask(IEEE)
+ Emit IEEE-conformant code, without inexact exceptions
+ 
+ mieee-with-inexact
diff --git a/5.1.0/gentoo/26_all_alpha-asm-mcpu.patch b/5.1.0/gentoo/26_all_alpha-asm-mcpu.patch
new file mode 100644
index 0000000..593431c
--- /dev/null
+++ b/5.1.0/gentoo/26_all_alpha-asm-mcpu.patch
@@ -0,0 +1,16 @@
+https://bugs.gentoo.org/170146
+http://gcc.gnu.org/ml/gcc-patches/2009-11/msg00403.html
+
+alpha: turn -mcpu=<cpu> into -m<cpu> for assembler all the time
+
+--- a/gcc/config/alpha/elf.h
++++ b/gcc/config/alpha/elf.h
+@@ -46,7 +46,7 @@ along with GCC; see the file COPYING3.  If not see
+ #define CC1_SPEC  "%{G*}"
+ 
+ #undef  ASM_SPEC
+-#define ASM_SPEC  "%{G*} %{relax:-relax} %{!gstabs*:-no-mdebug}%{gstabs*:-mdebug}"
++#define ASM_SPEC  "%{G*} %{relax:-relax} %{!gstabs*:-no-mdebug}%{gstabs*:-mdebug} %{mcpu=*:-m%*}"
+ 
+ #undef  IDENT_ASM_OP
+ #define IDENT_ASM_OP "\t.ident\t"
diff --git a/5.1.0/gentoo/29_all_arm_armv4t-default.patch b/5.1.0/gentoo/29_all_arm_armv4t-default.patch
new file mode 100644
index 0000000..4616cf9
--- /dev/null
+++ b/5.1.0/gentoo/29_all_arm_armv4t-default.patch
@@ -0,0 +1,16 @@
+gcc defaults to armv5t for all targets even armv4t
+
+http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
+
+
+--- a/gcc/config/arm/linux-eabi.h
++++ b/gcc/config/arm/linux-eabi.h
+@@ -45,7 +45,7 @@
+    The ARM10TDMI core is the default for armv5t, so set
+    SUBTARGET_CPU_DEFAULT to achieve this.  */
+ #undef  SUBTARGET_CPU_DEFAULT
+-#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
++#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
+ 
+ /* TARGET_BIG_ENDIAN_DEFAULT is set in
+    config.gcc for big endian configurations.  */
diff --git a/5.1.0/gentoo/30_all_freebsd-pie.patch b/5.1.0/gentoo/30_all_freebsd-pie.patch
new file mode 100644
index 0000000..ca49b35
--- /dev/null
+++ b/5.1.0/gentoo/30_all_freebsd-pie.patch
@@ -0,0 +1,67 @@
+https://bugs.gentoo.org/415185
+http://gcc.gnu.org/ml/gcc-patches/2012-05/msg00555.html
+
+From: Alexis Ballier <aballier@gentoo.org>
+To: gcc-patches@gcc.gnu.org
+Cc: Alexis Ballier <aballier@gentoo.org>
+Date: Tue, 8 May 2012 09:53:43 -0400
+Subject: [PATCH] gcc/config/freebsd-spec.h: Fix building PIE executables. Link them with crt{begin,end}S.o and Scrt1.o which are PIC instead of crt{begin,end}.o and crt1.o which are not. Spec synced from gnu-user.h.
+
+gcc/config/i386/freebsd.h: Likewise.
+---
+ gcc/config/freebsd-spec.h |    9 +++------
+ gcc/config/i386/freebsd.h |    9 +++------
+ 2 files changed, 6 insertions(+), 12 deletions(-)
+
+--- a/gcc/config/freebsd-spec.h
++++ b/gcc/config/freebsd-spec.h
+@@ -64,11 +64,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ 	before entering `main'.  */
+    
+ #define FBSD_STARTFILE_SPEC \
+-  "%{!shared: \
+-     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
+-		       %{!p:%{profile:gcrt1.o%s} \
+-			 %{!profile:crt1.o%s}}}} \
+-   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
++  "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
++   crti.o%s %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+ 
+ /* Provide a ENDFILE_SPEC appropriate for FreeBSD.  Here we tack on
+    the magical crtend.o file (see crtstuff.c) which provides part of 
+@@ -77,7 +74,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ 	`crtn.o'.  */
+ 
+ #define FBSD_ENDFILE_SPEC \
+-  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
++  "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
+ 
+ /* Provide a LIB_SPEC appropriate for FreeBSD as configured and as
+    required by the user-land thread model.  Before __FreeBSD_version
+--- a/gcc/config/i386/freebsd.h
++++ b/gcc/config/i386/freebsd.h
+@@ -67,11 +67,8 @@ along with GCC; see the file COPYING3.  If not see
+    
+ #undef	STARTFILE_SPEC
+ #define STARTFILE_SPEC \
+-  "%{!shared: \
+-     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
+-		       %{!p:%{profile:gcrt1.o%s} \
+-			 %{!profile:crt1.o%s}}}} \
+-   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
++  "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
++   crti.o%s %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+ 
+ /* Provide a ENDFILE_SPEC appropriate for FreeBSD.  Here we tack on
+    the magical crtend.o file (see crtstuff.c) which provides part of 
+@@ -81,7 +78,7 @@ along with GCC; see the file COPYING3.  If not see
+ 
+ #undef	ENDFILE_SPEC
+ #define ENDFILE_SPEC \
+-  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
++  "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
+ 
+ /* Provide a LINK_SPEC appropriate for FreeBSD.  Here we provide support
+    for the special GCC options -static and -shared, which allow us to
+-- 
+1.7.8.6
diff --git a/5.1.0/gentoo/34_all_ia64_note.GNU-stack.patch b/5.1.0/gentoo/34_all_ia64_note.GNU-stack.patch
new file mode 100644
index 0000000..66a787e
--- /dev/null
+++ b/5.1.0/gentoo/34_all_ia64_note.GNU-stack.patch
@@ -0,0 +1,92 @@
+http://gcc.gnu.org/PR21098
+
+
+2004-09-20  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/rs6000/ppc-asm.h: Add .note.GNU-stack section also
+	on ppc64-linux.
+
+	* config/ia64/lib1funcs.asm: Add .note.GNU-stack section on
+	ia64-linux.
+	* config/ia64/crtbegin.asm: Likewise.
+	* config/ia64/crtend.asm: Likewise.
+	* config/ia64/crti.asm: Likewise.
+	* config/ia64/crtn.asm: Likewise.
+
+2004-05-14  Jakub Jelinek  <jakub@redhat.com>
+
+	* config/ia64/linux.h (TARGET_ASM_FILE_END): Define.
+
+
+--- a/gcc/config/ia64/linux.h
++++ b/gcc/config/ia64/linux.h
+@@ -24,6 +24,8 @@ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ <http://www.gnu.org/licenses/>.  */
+ 
++#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
++
+ /* This is for -profile to use -lc_p instead of -lc.  */
+ #undef CC1_SPEC
+ #define CC1_SPEC "%{profile:-p} %{G*}"
+--- a/gcc/config/rs6000/ppc-asm.h
++++ b/gcc/config/rs6000/ppc-asm.h
+@@ -352,7 +352,7 @@ GLUE(.L,name): \
+ #endif
+ #endif
+ 
+-#if defined __linux__ && !defined __powerpc64__
++#if defined __linux__
+ 	.section .note.GNU-stack
+ 	.previous
+ #endif
+--- a/libgcc/config/ia64/crtbegin.S
++++ b/libgcc/config/ia64/crtbegin.S
+@@ -252,3 +252,7 @@ __do_jv_register_classes:
+ .weak __cxa_finalize
+ #endif
+ .weak _Jv_RegisterClasses
++
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
+--- a/libgcc/config/ia64/crtend.S
++++ b/libgcc/config/ia64/crtend.S
+@@ -119,3 +119,6 @@ __do_global_ctors_aux:
+ 
+ 	br.ret.sptk.many rp
+ 	.endp __do_global_ctors_aux
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
+--- a/libgcc/config/ia64/crti.S
++++ b/libgcc/config/ia64/crti.S
+@@ -49,5 +49,8 @@ _fini:
+ 	.save rp, r33
+ 	mov	r33 = b0
+ 	.body
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
+ 
+ # end of crti.S
+--- a/libgcc/config/ia64/crtn.S
++++ b/libgcc/config/ia64/crtn.S
+@@ -39,5 +39,8 @@
+ 	.restore sp
+ 	mov	r12 = r35
+ 	br.ret.sptk.many b0
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
+ 
+ # end of crtn.S
+--- a/libgcc/config/ia64/lib1funcs.S
++++ b/libgcc/config/ia64/lib1funcs.S
+@@ -793,3 +793,6 @@ __floattitf:
+ 	.endp __floattitf
+ #endif
+ #endif
++#ifdef __linux__
++.section .note.GNU-stack; .previous
++#endif
diff --git a/5.1.0/gentoo/38_all_sh_pr24836_all-archs.patch b/5.1.0/gentoo/38_all_sh_pr24836_all-archs.patch
new file mode 100644
index 0000000..03db560
--- /dev/null
+++ b/5.1.0/gentoo/38_all_sh_pr24836_all-archs.patch
@@ -0,0 +1,27 @@
+gcc/configure doesn't handle all possible SH architectures
+
+http://gcc.gnu.org/PR24836
+
+
+--- a/gcc/configure.ac
++++ b/gcc/configure.ac
+@@ -2924,7 +2924,7 @@ foo:	.long	25
+ 	tls_first_minor=14
+ 	tls_as_opt="-m64 -Aesame --fatal-warnings"
+ 	;;
+-  sh-*-* | sh[34]-*-*)
++  sh-*-* | sh[34]*-*-*)
+     conftest_s='
+ 	.section ".tdata","awT",@progbits
+ foo:	.long	25
+--- a/gcc/configure
++++ b/gcc/configure
+@@ -22753,7 +22753,7 @@ foo:	.long	25
+ 	tls_first_minor=14
+ 	tls_as_opt="-m64 -Aesame --fatal-warnings"
+ 	;;
+-  sh-*-* | sh[34]-*-*)
++  sh-*-* | sh[34]*-*-*)
+     conftest_s='
+ 	.section ".tdata","awT",@progbits
+ foo:	.long	25
diff --git a/5.1.0/gentoo/42_all_superh_default-multilib.patch b/5.1.0/gentoo/42_all_superh_default-multilib.patch
new file mode 100644
index 0000000..8b638d9
--- /dev/null
+++ b/5.1.0/gentoo/42_all_superh_default-multilib.patch
@@ -0,0 +1,24 @@
+The gcc-3.x toolchains would contain all the targets by default.  With gcc-4,
+you have to actually list out the multilibs you want or you will end up with
+just one when using targets like 'sh4-linux-gnu'.
+
+The resulting toolchain can't even build a kernel as the kernel needs to build
+with the nofpu flag to be sure that no fpu ops are generated.
+
+Here we restore the gcc-3.x behavior; the additional overhead of building all
+of these multilibs by default is negligible.
+
+https://bugs.gentoo.org/140205
+https://bugs.gentoo.org/320251
+
+--- a/gcc/config.gcc
++++ b/gcc/config.gcc
+@@ -2455,7 +2455,7 @@ sh-*-symbianelf* | sh[12346l]*-*-symbianelf* | \
+ 	if test "$sh_multilibs" = "default" ; then
+ 		case ${target} in
+ 		sh64-superh-linux* | \
+-		sh[1234]*)	sh_multilibs=${sh_cpu_target} ;;
++		sh[1234]*)	sh_multilibs=$(echo $(sed -n '/^[[:space:]]*case ${sh_multilib} in/,/)/{s:case ${sh_multilib} in::;s: | *:,:g;s:[\\)]::g;p}' ${srcdir}/config.gcc) | sed 's: ::g') ;;
+ 		sh64* | sh5*)	sh_multilibs=m5-32media,m5-32media-nofpu,m5-compact,m5-compact-nofpu,m5-64media,m5-64media-nofpu ;;
+ 		sh-superh-*)	sh_multilibs=m4,m4-single,m4-single-only,m4-nofpu ;;
+ 		sh*-*-linux*)	sh_multilibs=m1,m3e,m4 ;;
diff --git a/5.1.0/gentoo/50_all_libiberty-asprintf.patch b/5.1.0/gentoo/50_all_libiberty-asprintf.patch
new file mode 100644
index 0000000..bee0c4c
--- /dev/null
+++ b/5.1.0/gentoo/50_all_libiberty-asprintf.patch
@@ -0,0 +1,18 @@
+2008-07-25  Magnus Granberg  <zorry@ume.nu>
+
+	* include/libiberty.h (asprintf): Don't declare if defined as a macro
+
+--- a/include/libiberty.h
++++ b/include/libiberty.h
+@@ -609,8 +609,11 @@ extern int pwait (int, int *, int);
+ /* Like sprintf but provides a pointer to malloc'd storage, which must
+    be freed by the caller.  */
+ 
++/* asprintf may be declared as a macro by glibc with __USE_FORTIFY_LEVEL.  */
++#ifndef asprintf
+ extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
+ #endif
++#endif
+ 
+ #if !HAVE_DECL_VASPRINTF
+ /* Like vsprintf but provides a pointer to malloc'd storage, which
diff --git a/5.1.0/gentoo/51_all_libiberty-pic.patch b/5.1.0/gentoo/51_all_libiberty-pic.patch
new file mode 100644
index 0000000..b6160a7
--- /dev/null
+++ b/5.1.0/gentoo/51_all_libiberty-pic.patch
@@ -0,0 +1,10 @@
+--- a/libiberty/Makefile.in
++++ b/libiberty/Makefile.in
+@@ -246,6 +246,7 @@ $(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS)
+ 	  $(AR) $(AR_FLAGS) $(TARGETLIB) \
+ 	    $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS); \
+ 	  $(RANLIB) $(TARGETLIB); \
++	  cp $(TARGETLIB) ../ ; \
+ 	  cd ..; \
+ 	else true; fi
+ 
diff --git a/5.1.0/gentoo/52_all_netbsd-Bsymbolic.patch b/5.1.0/gentoo/52_all_netbsd-Bsymbolic.patch
new file mode 100644
index 0000000..4db281e
--- /dev/null
+++ b/5.1.0/gentoo/52_all_netbsd-Bsymbolic.patch
@@ -0,0 +1,12 @@
+https://bugs.gentoo.org/122698
+
+--- a/gcc/config/netbsd-elf.h
++++ b/gcc/config/netbsd-elf.h
+@@ -70,6 +70,7 @@ along with GCC; see the file COPYING3.  If not see
+ #define NETBSD_LINK_SPEC_ELF \
+   "%{assert*} %{R*} %{rpath*} \
+    %{shared:-shared} \
++   %{symbolic:-Bsymbolic} \
+    %{!shared: \
+      -dc -dp \
+      %{!nostdlib: \
diff --git a/5.1.0/gentoo/53_all_libitm-no-fortify-source.patch b/5.1.0/gentoo/53_all_libitm-no-fortify-source.patch
new file mode 100644
index 0000000..5ab15af
--- /dev/null
+++ b/5.1.0/gentoo/53_all_libitm-no-fortify-source.patch
@@ -0,0 +1,27 @@
+https://bugs.gentoo.org/508852
+https://gcc.gnu.org/PR61164
+
+2014-04-27  Magnus Granberg  <zorry@gentoo.org>
+
+	#508852
+	* libitm/configure.tgt: Disable FORTIFY
+
+--- a/libitm/configure.tgt
++++ b/libitm/configure.tgt
+@@ -43,6 +43,16 @@ if test "$gcc_cv_have_tls" = yes ; then
+   esac
+ fi
+ 
++# FIXME: error: inlining failed in call to always_inline 
++# ‘int vfprintf(FILE*, const char*, __va_list_tag*)’
++# : function body can be overwritten at link time
++# Disable Fortify in libitm for now. #508852
++case "${target}" in
++    *-*-linux*)
++	XCFLAGS="${XCFLAGS} -U_FORTIFY_SOURCE"
++	;;
++esac
++
+ # Map the target cpu to an ARCH sub-directory.  At the same time,
+ # work out any special compilation flags as necessary.
+ case "${target_cpu}" in
diff --git a/5.1.0/gentoo/67_all_gcc-poison-system-directories.patch b/5.1.0/gentoo/67_all_gcc-poison-system-directories.patch
new file mode 100644
index 0000000..d8b812b
--- /dev/null
+++ b/5.1.0/gentoo/67_all_gcc-poison-system-directories.patch
@@ -0,0 +1,176 @@
+http://cgit.openembedded.org/openembedded-core/tree/meta/recipes-devtools/gcc/gcc-4.9/0016-gcc-poison-system-directories.patch
+
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 08:59:00 +0400
+Subject: [PATCH 16/35] gcc: poison-system-directories
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Inappropriate [distribution: codesourcery]
+---
+ gcc/Makefile.in     |    2 +-
+ gcc/common.opt      |    4 ++++
+ gcc/config.in       |    6 ++++++
+ gcc/configure       |   20 ++++++++++++++++++--
+ gcc/configure.ac    |   10 ++++++++++
+ gcc/doc/invoke.texi |    9 +++++++++
+ gcc/gcc.c           |    2 ++
+ gcc/incpath.c       |   19 +++++++++++++++++++
+ 8 files changed, 69 insertions(+), 3 deletions(-)
+
+--- gcc-4.9-20140316.orig/gcc/common.opt
++++ gcc-4.9-20140316/gcc/common.opt
+@@ -603,6 +603,10 @@ Wpedantic
+ Common Var(pedantic) Warning
+ Issue warnings needed for strict compliance to the standard
+ 
++Wpoison-system-directories
++Common Var(flag_poison_system_directories) Init(1) Warning
++Warn for -I and -L options using system directories if cross compiling
++
+ Wshadow
+ Common Var(warn_shadow) Warning
+ Warn when one local variable shadows another
+--- gcc-4.9-20140316.orig/gcc/configure.ac
++++ gcc-4.9-20140316/gcc/configure.ac
+@@ -5366,6 +5366,16 @@ AC_ARG_ENABLE(version-specific-runtime-l
+                 [specify that runtime libraries should be
+                  installed in a compiler-specific directory])])
+ 
++AC_ARG_ENABLE([poison-system-directories],
++             AS_HELP_STRING([--enable-poison-system-directories],
++                            [warn for use of native system header directories]),,
++             [enable_poison_system_directories=no])
++if test "x${enable_poison_system_directories}" = "xyes"; then
++  AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES],
++           [1],
++           [Define to warn for use of native system header directories])
++fi
++
+ # Substitute configuration variables
+ AC_SUBST(subdirs)
+ AC_SUBST(srcdir)
+--- gcc-4.9-20140316.orig/gcc/configure
++++ gcc-4.9-20140316/gcc/configure
+@@ -928,6 +928,7 @@ with_system_zlib
+ enable_maintainer_mode
+ enable_link_mutex
+ enable_version_specific_runtime_libs
++enable_poison_system_directories
+ enable_plugin
+ enable_host_shared
+ enable_libquadmath_support
+@@ -1648,6 +1649,8 @@ Optional Features:
+   --enable-version-specific-runtime-libs
+                           specify that runtime libraries should be installed
+                           in a compiler-specific directory
++  --enable-poison-system-directories
++                          warn for use of native system header directories
+   --enable-plugin         enable plugin support
+   --enable-host-shared    build host code as shared libraries
+   --disable-libquadmath-support
+@@ -27702,6 +27705,19 @@ if test "${enable_version_specific_runti
+ fi
+ 
+ 
++# Check whether --enable-poison-system-directories was given.
++if test "${enable_poison_system_directories+set}" = set; then :
++  enableval=$enable_poison_system_directories;
++else
++  enable_poison_system_directories=no
++fi
++
++if test "x${enable_poison_system_directories}" = "xyes"; then
++
++$as_echo "#define ENABLE_POISON_SYSTEM_DIRECTORIES 1" >>confdefs.h
++
++fi
++
+ # Substitute configuration variables
+ 
+ 
+--- gcc-4.9-20140316.orig/gcc/config.in
++++ gcc-4.9-20140316/gcc/config.in
+@@ -138,6 +138,12 @@
+ #endif
+ 
+ 
++/* Define to warn for use of native system header directories */
++#ifndef USED_FOR_TARGET
++#undef ENABLE_POISON_SYSTEM_DIRECTORIES
++#endif
++
++
+ /* Define if you want all operations on RTL (the basic data structure of the
+    optimizer and back end) to be checked for dynamic type safety at runtime.
+    This is quite expensive. */
+--- gcc-4.9-20140316.orig/gcc/gcc.c
++++ gcc-4.9-20140316/gcc/gcc.c
+@@ -764,6 +764,8 @@ proper position among the other output f
+    "%{fuse-ld=*:-fuse-ld=%*}\
+     %X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
++    %{Wno-poison-system-directories:--no-poison-system-directories}\
++    %{Werror=poison-system-directories:--error-poison-system-directories}\
+     %{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\
+     %{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)}\
+     %{fgnu-tm:%:include(libitm.spec)%(link_itm)}\
+--- gcc-4.9-20140316.orig/gcc/incpath.c
++++ gcc-4.9-20140316/gcc/incpath.c
+@@ -28,6 +28,7 @@
+ #include "intl.h"
+ #include "incpath.h"
+ #include "cppdefault.h"
++#include "diagnostic-core.h"
+ 
+ /* Microsoft Windows does not natively support inodes.
+    VMS has non-numeric inodes.  */
+@@ -382,6 +383,24 @@ merge_include_chains (const char *sysroo
+ 	}
+       fprintf (stderr, _("End of search list.\n"));
+     }
++
++#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES
++  if (flag_poison_system_directories)
++    {
++       struct cpp_dir *p;
++
++       for (p = heads[QUOTE]; p; p = p->next)
++         {
++          if ((!strncmp (p->name, "/usr/include", 12))
++              || (!strncmp (p->name, "/usr/local/include", 18))
++              || (!strncmp (p->name, "/usr/X11R6/include", 18)))
++            warning (OPT_Wpoison_system_directories,
++                     "include location \"%s\" is unsafe for "
++                     "cross-compilation",
++                     p->name);
++         }
++    }
++#endif
+ }
+ 
+ /* Use given -I paths for #include "..." but not #include <...>, and
+--- a/gcc/doc/gcc.info
++++ b/gcc/doc/gcc.info
+@@ -558,6 +558,7 @@ _Warning Options_
+           -Woverlength-strings  -Wpacked  -Wpacked-bitfield-compat  -Wpadded
+           -Wparentheses  -Wpedantic-ms-format -Wno-pedantic-ms-format
+           -Wpointer-arith  -Wno-pointer-to-int-cast
++          -Wno-poison-system-directories
+           -Wredundant-decls  -Wno-return-local-addr
+           -Wreturn-type  -Wsequence-point  -Wshadow
+           -Wsign-compare  -Wsign-conversion -Wfloat-conversion
+@@ -4010,6 +4011,13 @@ compiler warns that an unrecognized option is present.
+      pragmas in system headers--for that, '-Wunknown-pragmas' must also
+      be used.
+ 
++'-Wno-poison-system-directories'
++     Do not warn for @option{-I} or @option{-L} options using system
++     directories such as @file{/usr/include} when cross compiling.  This
++     option is intended for use in chroot environments when such
++     directories contain the correct headers and libraries for the target
++     system rather than the host.
++
+ '-Wtrampolines'
+      Warn about trampolines generated for pointers to nested functions.
+ 
diff --git a/5.1.0/gentoo/74_all_gcc5_isl-dl.patch b/5.1.0/gentoo/74_all_gcc5_isl-dl.patch
new file mode 100644
index 0000000..bf3af80
--- /dev/null
+++ b/5.1.0/gentoo/74_all_gcc5_isl-dl.patch
@@ -0,0 +1,596 @@
+dlopen cloog-isl library rather than link to it directly.  This prevents
+cloog upgrades that change the soname from breaking the compiler.
+
+http://pkgs.fedoraproject.org/cgit/gcc.git/tree/gcc5-isl-dl.patch
+
+
+In FreeBSD dlopen is part of libc so we can't just hardcode -ldl.
+We abuse the existing plugin check logic to pull out that info.
+
+--- gcc/Makefile.in.jj	2012-12-13 17:09:20.000000000 +0100
++++ gcc/Makefile.in	2012-12-14 11:45:22.585670055 +0100
+@@ -1006,7 +1006,7 @@ BUILD_LIBDEPS= $(BUILD_LIBIBERTY)
+ # and the system's installed libraries.
+ LIBS = @LIBS@ libcommon.a $(CPPLIB) $(LIBINTL) $(LIBICONV) $(LIBBACKTRACE) \
+ 	$(LIBIBERTY) $(LIBDECNUMBER) $(HOST_LIBS)
+-BACKENDLIBS = $(ISLLIBS) $(GMPLIBS) $(PLUGINLIBS) $(HOST_LIBS) \
++BACKENDLIBS = $(if $(ISLLIBS),@DL_LIB@) $(GMPLIBS) $(PLUGINLIBS) $(HOST_LIBS) \
+ 	$(ZLIB)
+ # Any system libraries needed just for GNAT.
+ SYSLIBS = @GNAT_LIBEXC@
+@@ -2050,6 +2050,15 @@ $(out_object_file): $(out_file)
+ $(common_out_object_file): $(common_out_file)
+ 	$(COMPILE) $<
+ 	$(POSTCOMPILE)
++
++graphite%.o : \
++  ALL_CFLAGS := -O $(filter-out -fkeep-inline-functions, $(ALL_CFLAGS))
++graphite.o : \
++  ALL_CFLAGS := -O $(filter-out -fkeep-inline-functions, $(ALL_CFLAGS))
++graphite%.o : \
++  ALL_CXXFLAGS := -O $(filter-out -fkeep-inline-functions, $(ALL_CXXFLAGS))
++graphite.o : \
++  ALL_CXXFLAGS := -O $(filter-out -fkeep-inline-functions, $(ALL_CXXFLAGS))
+ #
+ # Generate header and source files from the machine description,
+ # and compile them.
+--- gcc/configure
++++ gcc/configure
+@@ -604,6 +604,7 @@ PICFLAG
+ enable_host_shared
+ enable_plugin
+ pluginlibs
++DL_LIB
+ ISLINC
+ ISLLIBS
+ GMPINC
+@@ -28285,6 +28286,7 @@ $as_echo "unable to check" >&6; }
+      fi
+ 
+      # Check -ldl
++     DL_LIB=
+      saved_LIBS="$LIBS"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlopen" >&5
+ $as_echo_n "checking for library containing dlopen... " >&6; }
+@@ -28344,6 +28346,7 @@ fi
+ 
+      if test x"$ac_cv_search_dlopen" = x"-ldl"; then
+        pluginlibs="$pluginlibs -ldl"
++       DL_LIB=$ac_cv_search_dlopen
+      fi
+      LIBS="$saved_LIBS"
+ 
+--- gcc/graphite-poly.h.jj	2012-12-13 11:31:27.000000000 +0100
++++ gcc/graphite-poly.h	2012-12-14 13:41:41.970800726 +0100
+@@ -22,6 +22,478 @@ along with GCC; see the file COPYING3.
+ #ifndef GCC_GRAPHITE_POLY_H
+ #define GCC_GRAPHITE_POLY_H
+ 
++#include <isl/aff.h>
++#include <isl/schedule.h>
++#include <isl/ilp.h>
++#include <isl/flow.h>
++#include <isl/options.h>
++#include <isl/ast.h>
++#include <isl/ast_build.h>
++#include <isl/val_gmp.h>
++#include <dlfcn.h>
++#ifdef HAVE_ISL_SCHED_CONSTRAINTS_COMPUTE_SCHEDULE
++#define DYNSYM_ZERO_DISTANCE DYNSYM (isl_band_member_is_coincident)
++#else
++#define DYNSYM_ZERO_DISTANCE DYNSYM (isl_band_member_is_zero_distance)
++#endif
++#define DYNSYMS \
++  DYNSYM (isl_aff_add_coefficient_si); \
++  DYNSYM (isl_aff_free); \
++  DYNSYM (isl_aff_get_space); \
++  DYNSYM (isl_aff_set_coefficient_si); \
++  DYNSYM (isl_aff_set_constant_si); \
++  DYNSYM (isl_aff_zero_on_domain); \
++  DYNSYM (isl_band_free); \
++  DYNSYM (isl_band_get_children); \
++  DYNSYM (isl_band_get_partial_schedule); \
++  DYNSYM (isl_band_has_children); \
++  DYNSYM (isl_band_list_free); \
++  DYNSYM (isl_band_list_get_band); \
++  DYNSYM (isl_band_list_get_ctx); \
++  DYNSYM (isl_band_list_n_band); \
++  DYNSYM_ZERO_DISTANCE; \
++  DYNSYM (isl_band_n_member); \
++  DYNSYM (isl_basic_map_add_constraint); \
++  DYNSYM (isl_basic_map_project_out); \
++  DYNSYM (isl_basic_map_universe); \
++  DYNSYM (isl_constraint_set_coefficient_si); \
++  DYNSYM (isl_constraint_set_constant_si); \
++  DYNSYM (isl_ctx_alloc); \
++  DYNSYM (isl_ctx_free); \
++  DYNSYM (isl_equality_alloc); \
++  DYNSYM (isl_id_alloc); \
++  DYNSYM (isl_id_copy); \
++  DYNSYM (isl_id_free); \
++  DYNSYM (isl_inequality_alloc); \
++  DYNSYM (isl_local_space_copy); \
++  DYNSYM (isl_local_space_free); \
++  DYNSYM (isl_local_space_from_space); \
++  DYNSYM (isl_local_space_range); \
++  DYNSYM (isl_map_add_constraint); \
++  DYNSYM (isl_map_add_dims); \
++  DYNSYM (isl_map_align_params); \
++  DYNSYM (isl_map_apply_range); \
++  DYNSYM (isl_map_copy); \
++  DYNSYM (isl_map_dim); \
++  DYNSYM (isl_map_dump); \
++  DYNSYM (isl_map_equate); \
++  DYNSYM (isl_map_fix_si); \
++  DYNSYM (isl_map_flat_product); \
++  DYNSYM (isl_map_flat_range_product); \
++  DYNSYM (isl_map_free); \
++  DYNSYM (isl_map_from_basic_map); \
++  DYNSYM (isl_map_from_pw_aff); \
++  DYNSYM (isl_map_from_union_map); \
++  DYNSYM (isl_map_get_ctx); \
++  DYNSYM (isl_map_get_space); \
++  DYNSYM (isl_map_get_tuple_id); \
++  DYNSYM (isl_map_insert_dims); \
++  DYNSYM (isl_map_intersect); \
++  DYNSYM (isl_map_intersect_domain); \
++  DYNSYM (isl_map_intersect_range); \
++  DYNSYM (isl_map_is_empty); \
++  DYNSYM (isl_map_lex_ge); \
++  DYNSYM (isl_map_lex_le); \
++  DYNSYM (isl_map_n_out); \
++  DYNSYM (isl_map_range); \
++  DYNSYM (isl_map_set_tuple_id); \
++  DYNSYM (isl_map_universe); \
++  DYNSYM (isl_options_set_on_error); \
++  DYNSYM (isl_options_set_schedule_fuse); \
++  DYNSYM (isl_options_set_schedule_max_constant_term); \
++  DYNSYM (isl_options_set_schedule_maximize_band_depth); \
++  DYNSYM (isl_printer_free); \
++  DYNSYM (isl_printer_print_aff); \
++  DYNSYM (isl_printer_print_constraint); \
++  DYNSYM (isl_printer_print_map); \
++  DYNSYM (isl_printer_print_set); \
++  DYNSYM (isl_printer_to_file); \
++  DYNSYM (isl_pw_aff_add); \
++  DYNSYM (isl_pw_aff_alloc); \
++  DYNSYM (isl_pw_aff_copy); \
++  DYNSYM (isl_pw_aff_eq_set); \
++  DYNSYM (isl_pw_aff_free); \
++  DYNSYM (isl_pw_aff_from_aff); \
++  DYNSYM (isl_pw_aff_ge_set); \
++  DYNSYM (isl_pw_aff_gt_set); \
++  DYNSYM (isl_pw_aff_is_cst); \
++  DYNSYM (isl_pw_aff_le_set); \
++  DYNSYM (isl_pw_aff_lt_set); \
++  DYNSYM (isl_pw_aff_mul); \
++  DYNSYM (isl_pw_aff_ne_set); \
++  DYNSYM (isl_pw_aff_nonneg_set); \
++  DYNSYM (isl_pw_aff_set_tuple_id); \
++  DYNSYM (isl_pw_aff_sub); \
++  DYNSYM (isl_pw_aff_zero_set); \
++  DYNSYM (isl_schedule_free); \
++  DYNSYM (isl_schedule_get_band_forest); \
++  DYNSYM (isl_set_add_constraint); \
++  DYNSYM (isl_set_add_dims); \
++  DYNSYM (isl_set_apply); \
++  DYNSYM (isl_set_coalesce); \
++  DYNSYM (isl_set_copy); \
++  DYNSYM (isl_set_dim); \
++  DYNSYM (isl_set_fix_si); \
++  DYNSYM (isl_set_free); \
++  DYNSYM (isl_set_get_space); \
++  DYNSYM (isl_set_get_tuple_id); \
++  DYNSYM (isl_set_intersect); \
++  DYNSYM (isl_set_is_empty); \
++  DYNSYM (isl_set_n_dim); \
++  DYNSYM (isl_set_nat_universe); \
++  DYNSYM (isl_set_project_out); \
++  DYNSYM (isl_set_set_tuple_id); \
++  DYNSYM (isl_set_universe); \
++  DYNSYM (isl_space_add_dims); \
++  DYNSYM (isl_space_alloc); \
++  DYNSYM (isl_space_copy); \
++  DYNSYM (isl_space_dim); \
++  DYNSYM (isl_space_domain); \
++  DYNSYM (isl_space_find_dim_by_id); \
++  DYNSYM (isl_space_free); \
++  DYNSYM (isl_space_from_domain); \
++  DYNSYM (isl_space_get_tuple_id); \
++  DYNSYM (isl_space_params_alloc); \
++  DYNSYM (isl_space_range); \
++  DYNSYM (isl_space_set_alloc); \
++  DYNSYM (isl_space_set_dim_id); \
++  DYNSYM (isl_space_set_tuple_id); \
++  DYNSYM (isl_union_map_add_map); \
++  DYNSYM (isl_union_map_align_params); \
++  DYNSYM (isl_union_map_apply_domain); \
++  DYNSYM (isl_union_map_apply_range); \
++  DYNSYM (isl_union_map_compute_flow); \
++  DYNSYM (isl_union_map_copy); \
++  DYNSYM (isl_union_map_empty); \
++  DYNSYM (isl_union_map_flat_range_product); \
++  DYNSYM (isl_union_map_foreach_map); \
++  DYNSYM (isl_union_map_free); \
++  DYNSYM (isl_union_map_from_map); \
++  DYNSYM (isl_union_map_get_ctx); \
++  DYNSYM (isl_union_map_get_space); \
++  DYNSYM (isl_union_map_gist_domain); \
++  DYNSYM (isl_union_map_gist_range); \
++  DYNSYM (isl_union_map_intersect_domain); \
++  DYNSYM (isl_union_map_is_empty); \
++  DYNSYM (isl_union_map_subtract); \
++  DYNSYM (isl_union_map_union); \
++  DYNSYM (isl_union_set_add_set); \
++  DYNSYM (isl_union_set_compute_schedule); \
++  DYNSYM (isl_union_set_copy); \
++  DYNSYM (isl_union_set_empty); \
++  DYNSYM (isl_union_set_from_set); \
++  DYNSYM (isl_aff_add_constant_val); \
++  DYNSYM (isl_aff_get_coefficient_val); \
++  DYNSYM (isl_aff_get_ctx); \
++  DYNSYM (isl_aff_mod_val); \
++  DYNSYM (isl_ast_build_ast_from_schedule); \
++  DYNSYM (isl_ast_build_free); \
++  DYNSYM (isl_ast_build_from_context); \
++  DYNSYM (isl_ast_build_get_ctx); \
++  DYNSYM (isl_ast_build_get_schedule); \
++  DYNSYM (isl_ast_build_get_schedule_space); \
++  DYNSYM (isl_ast_build_set_before_each_for); \
++  DYNSYM (isl_ast_build_set_options); \
++  DYNSYM (isl_ast_expr_free); \
++  DYNSYM (isl_ast_expr_from_val); \
++  DYNSYM (isl_ast_expr_get_ctx); \
++  DYNSYM (isl_ast_expr_get_id); \
++  DYNSYM (isl_ast_expr_get_op_arg); \
++  DYNSYM (isl_ast_expr_get_op_n_arg); \
++  DYNSYM (isl_ast_expr_get_op_type); \
++  DYNSYM (isl_ast_expr_get_type); \
++  DYNSYM (isl_ast_expr_get_val); \
++  DYNSYM (isl_ast_expr_sub); \
++  DYNSYM (isl_ast_node_block_get_children); \
++  DYNSYM (isl_ast_node_for_get_body); \
++  DYNSYM (isl_ast_node_for_get_cond); \
++  DYNSYM (isl_ast_node_for_get_inc); \
++  DYNSYM (isl_ast_node_for_get_init); \
++  DYNSYM (isl_ast_node_for_get_iterator); \
++  DYNSYM (isl_ast_node_free); \
++  DYNSYM (isl_ast_node_get_annotation); \
++  DYNSYM (isl_ast_node_get_type); \
++  DYNSYM (isl_ast_node_if_get_cond); \
++  DYNSYM (isl_ast_node_if_get_else); \
++  DYNSYM (isl_ast_node_if_get_then); \
++  DYNSYM (isl_ast_node_list_free); \
++  DYNSYM (isl_ast_node_list_get_ast_node); \
++  DYNSYM (isl_ast_node_list_n_ast_node); \
++  DYNSYM (isl_ast_node_user_get_expr); \
++  DYNSYM (isl_constraint_set_coefficient_val); \
++  DYNSYM (isl_constraint_set_constant_val); \
++  DYNSYM (isl_id_get_user); \
++  DYNSYM (isl_local_space_get_ctx); \
++  DYNSYM (isl_map_fix_val); \
++  DYNSYM (isl_options_set_ast_build_atomic_upper_bound); \
++  DYNSYM (isl_printer_print_ast_node); \
++  DYNSYM (isl_printer_print_str); \
++  DYNSYM (isl_printer_set_output_format); \
++  DYNSYM (isl_pw_aff_mod_val); \
++  DYNSYM (isl_schedule_constraints_compute_schedule); \
++  DYNSYM (isl_schedule_constraints_on_domain); \
++  DYNSYM (isl_schedule_constraints_set_coincidence); \
++  DYNSYM (isl_schedule_constraints_set_proximity); \
++  DYNSYM (isl_schedule_constraints_set_validity); \
++  DYNSYM (isl_set_get_dim_id); \
++  DYNSYM (isl_set_max_val); \
++  DYNSYM (isl_set_min_val); \
++  DYNSYM (isl_set_params); \
++  DYNSYM (isl_space_align_params); \
++  DYNSYM (isl_space_map_from_domain_and_range); \
++  DYNSYM (isl_space_set_tuple_name); \
++  DYNSYM (isl_space_wrap); \
++  DYNSYM (isl_union_map_from_domain_and_range); \
++  DYNSYM (isl_union_map_range); \
++  DYNSYM (isl_union_set_union); \
++  DYNSYM (isl_union_set_universe); \
++  DYNSYM (isl_val_2exp); \
++  DYNSYM (isl_val_add_ui); \
++  DYNSYM (isl_val_copy); \
++  DYNSYM (isl_val_free); \
++  DYNSYM (isl_val_get_num_gmp); \
++  DYNSYM (isl_val_int_from_gmp); \
++  DYNSYM (isl_val_int_from_si); \
++  DYNSYM (isl_val_int_from_ui); \
++  DYNSYM (isl_val_mul); \
++  DYNSYM (isl_val_neg); \
++  DYNSYM (isl_val_sub);
++
++extern struct isl_pointers_s__
++{
++  bool inited;
++  void *h;
++#define DYNSYM(x) __typeof (x) *p_##x
++  DYNSYMS
++#undef DYNSYM
++} isl_pointers__;
++
++#define isl_aff_add_coefficient_si (*isl_pointers__.p_isl_aff_add_coefficient_si)
++#define isl_aff_free (*isl_pointers__.p_isl_aff_free)
++#define isl_aff_get_space (*isl_pointers__.p_isl_aff_get_space)
++#define isl_aff_set_coefficient_si (*isl_pointers__.p_isl_aff_set_coefficient_si)
++#define isl_aff_set_constant_si (*isl_pointers__.p_isl_aff_set_constant_si)
++#define isl_aff_zero_on_domain (*isl_pointers__.p_isl_aff_zero_on_domain)
++#define isl_band_free (*isl_pointers__.p_isl_band_free)
++#define isl_band_get_children (*isl_pointers__.p_isl_band_get_children)
++#define isl_band_get_partial_schedule (*isl_pointers__.p_isl_band_get_partial_schedule)
++#define isl_band_has_children (*isl_pointers__.p_isl_band_has_children)
++#define isl_band_list_free (*isl_pointers__.p_isl_band_list_free)
++#define isl_band_list_get_band (*isl_pointers__.p_isl_band_list_get_band)
++#define isl_band_list_get_ctx (*isl_pointers__.p_isl_band_list_get_ctx)
++#define isl_band_list_n_band (*isl_pointers__.p_isl_band_list_n_band)
++#ifdef HAVE_ISL_SCHED_CONSTRAINTS_COMPUTE_SCHEDULE
++#define isl_band_member_is_coincident (*isl_pointers__.p_isl_band_member_is_coincident)
++#else
++#define isl_band_member_is_zero_distance (*isl_pointers__.p_isl_band_member_is_zero_distance)
++#endif
++#define isl_band_n_member (*isl_pointers__.p_isl_band_n_member)
++#define isl_basic_map_add_constraint (*isl_pointers__.p_isl_basic_map_add_constraint)
++#define isl_basic_map_project_out (*isl_pointers__.p_isl_basic_map_project_out)
++#define isl_basic_map_universe (*isl_pointers__.p_isl_basic_map_universe)
++#define isl_constraint_set_coefficient_si (*isl_pointers__.p_isl_constraint_set_coefficient_si)
++#define isl_constraint_set_constant_si (*isl_pointers__.p_isl_constraint_set_constant_si)
++#define isl_ctx_alloc (*isl_pointers__.p_isl_ctx_alloc)
++#define isl_ctx_free (*isl_pointers__.p_isl_ctx_free)
++#define isl_equality_alloc (*isl_pointers__.p_isl_equality_alloc)
++#define isl_id_alloc (*isl_pointers__.p_isl_id_alloc)
++#define isl_id_copy (*isl_pointers__.p_isl_id_copy)
++#define isl_id_free (*isl_pointers__.p_isl_id_free)
++#define isl_inequality_alloc (*isl_pointers__.p_isl_inequality_alloc)
++#define isl_local_space_copy (*isl_pointers__.p_isl_local_space_copy)
++#define isl_local_space_free (*isl_pointers__.p_isl_local_space_free)
++#define isl_local_space_from_space (*isl_pointers__.p_isl_local_space_from_space)
++#define isl_local_space_range (*isl_pointers__.p_isl_local_space_range)
++#define isl_map_add_constraint (*isl_pointers__.p_isl_map_add_constraint)
++#define isl_map_add_dims (*isl_pointers__.p_isl_map_add_dims)
++#define isl_map_align_params (*isl_pointers__.p_isl_map_align_params)
++#define isl_map_apply_range (*isl_pointers__.p_isl_map_apply_range)
++#define isl_map_copy (*isl_pointers__.p_isl_map_copy)
++#define isl_map_dim (*isl_pointers__.p_isl_map_dim)
++#define isl_map_dump (*isl_pointers__.p_isl_map_dump)
++#define isl_map_equate (*isl_pointers__.p_isl_map_equate)
++#define isl_map_fix_si (*isl_pointers__.p_isl_map_fix_si)
++#define isl_map_flat_product (*isl_pointers__.p_isl_map_flat_product)
++#define isl_map_flat_range_product (*isl_pointers__.p_isl_map_flat_range_product)
++#define isl_map_free (*isl_pointers__.p_isl_map_free)
++#define isl_map_from_basic_map (*isl_pointers__.p_isl_map_from_basic_map)
++#define isl_map_from_pw_aff (*isl_pointers__.p_isl_map_from_pw_aff)
++#define isl_map_from_union_map (*isl_pointers__.p_isl_map_from_union_map)
++#define isl_map_get_ctx (*isl_pointers__.p_isl_map_get_ctx)
++#define isl_map_get_space (*isl_pointers__.p_isl_map_get_space)
++#define isl_map_get_tuple_id (*isl_pointers__.p_isl_map_get_tuple_id)
++#define isl_map_insert_dims (*isl_pointers__.p_isl_map_insert_dims)
++#define isl_map_intersect (*isl_pointers__.p_isl_map_intersect)
++#define isl_map_intersect_domain (*isl_pointers__.p_isl_map_intersect_domain)
++#define isl_map_intersect_range (*isl_pointers__.p_isl_map_intersect_range)
++#define isl_map_is_empty (*isl_pointers__.p_isl_map_is_empty)
++#define isl_map_lex_ge (*isl_pointers__.p_isl_map_lex_ge)
++#define isl_map_lex_le (*isl_pointers__.p_isl_map_lex_le)
++#define isl_map_n_out (*isl_pointers__.p_isl_map_n_out)
++#define isl_map_range (*isl_pointers__.p_isl_map_range)
++#define isl_map_set_tuple_id (*isl_pointers__.p_isl_map_set_tuple_id)
++#define isl_map_universe (*isl_pointers__.p_isl_map_universe)
++#define isl_options_set_on_error (*isl_pointers__.p_isl_options_set_on_error)
++#define isl_options_set_schedule_fuse (*isl_pointers__.p_isl_options_set_schedule_fuse)
++#define isl_options_set_schedule_max_constant_term (*isl_pointers__.p_isl_options_set_schedule_max_constant_term)
++#define isl_options_set_schedule_maximize_band_depth (*isl_pointers__.p_isl_options_set_schedule_maximize_band_depth)
++#define isl_printer_free (*isl_pointers__.p_isl_printer_free)
++#define isl_printer_print_aff (*isl_pointers__.p_isl_printer_print_aff)
++#define isl_printer_print_constraint (*isl_pointers__.p_isl_printer_print_constraint)
++#define isl_printer_print_map (*isl_pointers__.p_isl_printer_print_map)
++#define isl_printer_print_set (*isl_pointers__.p_isl_printer_print_set)
++#define isl_printer_to_file (*isl_pointers__.p_isl_printer_to_file)
++#define isl_pw_aff_add (*isl_pointers__.p_isl_pw_aff_add)
++#define isl_pw_aff_alloc (*isl_pointers__.p_isl_pw_aff_alloc)
++#define isl_pw_aff_copy (*isl_pointers__.p_isl_pw_aff_copy)
++#define isl_pw_aff_eq_set (*isl_pointers__.p_isl_pw_aff_eq_set)
++#define isl_pw_aff_free (*isl_pointers__.p_isl_pw_aff_free)
++#define isl_pw_aff_from_aff (*isl_pointers__.p_isl_pw_aff_from_aff)
++#define isl_pw_aff_ge_set (*isl_pointers__.p_isl_pw_aff_ge_set)
++#define isl_pw_aff_gt_set (*isl_pointers__.p_isl_pw_aff_gt_set)
++#define isl_pw_aff_is_cst (*isl_pointers__.p_isl_pw_aff_is_cst)
++#define isl_pw_aff_le_set (*isl_pointers__.p_isl_pw_aff_le_set)
++#define isl_pw_aff_lt_set (*isl_pointers__.p_isl_pw_aff_lt_set)
++#define isl_pw_aff_mul (*isl_pointers__.p_isl_pw_aff_mul)
++#define isl_pw_aff_ne_set (*isl_pointers__.p_isl_pw_aff_ne_set)
++#define isl_pw_aff_nonneg_set (*isl_pointers__.p_isl_pw_aff_nonneg_set)
++#define isl_pw_aff_set_tuple_id (*isl_pointers__.p_isl_pw_aff_set_tuple_id)
++#define isl_pw_aff_sub (*isl_pointers__.p_isl_pw_aff_sub)
++#define isl_pw_aff_zero_set (*isl_pointers__.p_isl_pw_aff_zero_set)
++#define isl_schedule_free (*isl_pointers__.p_isl_schedule_free)
++#define isl_schedule_get_band_forest (*isl_pointers__.p_isl_schedule_get_band_forest)
++#define isl_set_add_constraint (*isl_pointers__.p_isl_set_add_constraint)
++#define isl_set_add_dims (*isl_pointers__.p_isl_set_add_dims)
++#define isl_set_apply (*isl_pointers__.p_isl_set_apply)
++#define isl_set_coalesce (*isl_pointers__.p_isl_set_coalesce)
++#define isl_set_copy (*isl_pointers__.p_isl_set_copy)
++#define isl_set_dim (*isl_pointers__.p_isl_set_dim)
++#define isl_set_fix_si (*isl_pointers__.p_isl_set_fix_si)
++#define isl_set_free (*isl_pointers__.p_isl_set_free)
++#define isl_set_get_space (*isl_pointers__.p_isl_set_get_space)
++#define isl_set_get_tuple_id (*isl_pointers__.p_isl_set_get_tuple_id)
++#define isl_set_intersect (*isl_pointers__.p_isl_set_intersect)
++#define isl_set_is_empty (*isl_pointers__.p_isl_set_is_empty)
++#define isl_set_n_dim (*isl_pointers__.p_isl_set_n_dim)
++#define isl_set_nat_universe (*isl_pointers__.p_isl_set_nat_universe)
++#define isl_set_project_out (*isl_pointers__.p_isl_set_project_out)
++#define isl_set_set_tuple_id (*isl_pointers__.p_isl_set_set_tuple_id)
++#define isl_set_universe (*isl_pointers__.p_isl_set_universe)
++#define isl_space_add_dims (*isl_pointers__.p_isl_space_add_dims)
++#define isl_space_alloc (*isl_pointers__.p_isl_space_alloc)
++#define isl_space_copy (*isl_pointers__.p_isl_space_copy)
++#define isl_space_dim (*isl_pointers__.p_isl_space_dim)
++#define isl_space_domain (*isl_pointers__.p_isl_space_domain)
++#define isl_space_find_dim_by_id (*isl_pointers__.p_isl_space_find_dim_by_id)
++#define isl_space_free (*isl_pointers__.p_isl_space_free)
++#define isl_space_from_domain (*isl_pointers__.p_isl_space_from_domain)
++#define isl_space_get_tuple_id (*isl_pointers__.p_isl_space_get_tuple_id)
++#define isl_space_params_alloc (*isl_pointers__.p_isl_space_params_alloc)
++#define isl_space_range (*isl_pointers__.p_isl_space_range)
++#define isl_space_set_alloc (*isl_pointers__.p_isl_space_set_alloc)
++#define isl_space_set_dim_id (*isl_pointers__.p_isl_space_set_dim_id)
++#define isl_space_set_tuple_id (*isl_pointers__.p_isl_space_set_tuple_id)
++#define isl_union_map_add_map (*isl_pointers__.p_isl_union_map_add_map)
++#define isl_union_map_align_params (*isl_pointers__.p_isl_union_map_align_params)
++#define isl_union_map_apply_domain (*isl_pointers__.p_isl_union_map_apply_domain)
++#define isl_union_map_apply_range (*isl_pointers__.p_isl_union_map_apply_range)
++#define isl_union_map_compute_flow (*isl_pointers__.p_isl_union_map_compute_flow)
++#define isl_union_map_copy (*isl_pointers__.p_isl_union_map_copy)
++#define isl_union_map_empty (*isl_pointers__.p_isl_union_map_empty)
++#define isl_union_map_flat_range_product (*isl_pointers__.p_isl_union_map_flat_range_product)
++#define isl_union_map_foreach_map (*isl_pointers__.p_isl_union_map_foreach_map)
++#define isl_union_map_free (*isl_pointers__.p_isl_union_map_free)
++#define isl_union_map_from_map (*isl_pointers__.p_isl_union_map_from_map)
++#define isl_union_map_get_ctx (*isl_pointers__.p_isl_union_map_get_ctx)
++#define isl_union_map_get_space (*isl_pointers__.p_isl_union_map_get_space)
++#define isl_union_map_gist_domain (*isl_pointers__.p_isl_union_map_gist_domain)
++#define isl_union_map_gist_range (*isl_pointers__.p_isl_union_map_gist_range)
++#define isl_union_map_intersect_domain (*isl_pointers__.p_isl_union_map_intersect_domain)
++#define isl_union_map_is_empty (*isl_pointers__.p_isl_union_map_is_empty)
++#define isl_union_map_subtract (*isl_pointers__.p_isl_union_map_subtract)
++#define isl_union_map_union (*isl_pointers__.p_isl_union_map_union)
++#define isl_union_set_add_set (*isl_pointers__.p_isl_union_set_add_set)
++#define isl_union_set_compute_schedule (*isl_pointers__.p_isl_union_set_compute_schedule)
++#define isl_union_set_copy (*isl_pointers__.p_isl_union_set_copy)
++#define isl_union_set_empty (*isl_pointers__.p_isl_union_set_empty)
++#define isl_union_set_from_set (*isl_pointers__.p_isl_union_set_from_set)
++#define isl_aff_add_constant_val (*isl_pointers__.p_isl_aff_add_constant_val)
++#define isl_aff_get_coefficient_val (*isl_pointers__.p_isl_aff_get_coefficient_val)
++#define isl_aff_get_ctx (*isl_pointers__.p_isl_aff_get_ctx)
++#define isl_aff_mod_val (*isl_pointers__.p_isl_aff_mod_val)
++#define isl_ast_build_ast_from_schedule (*isl_pointers__.p_isl_ast_build_ast_from_schedule)
++#define isl_ast_build_free (*isl_pointers__.p_isl_ast_build_free)
++#define isl_ast_build_from_context (*isl_pointers__.p_isl_ast_build_from_context)
++#define isl_ast_build_get_ctx (*isl_pointers__.p_isl_ast_build_get_ctx)
++#define isl_ast_build_get_schedule (*isl_pointers__.p_isl_ast_build_get_schedule)
++#define isl_ast_build_get_schedule_space (*isl_pointers__.p_isl_ast_build_get_schedule_space)
++#define isl_ast_build_set_before_each_for (*isl_pointers__.p_isl_ast_build_set_before_each_for)
++#define isl_ast_build_set_options (*isl_pointers__.p_isl_ast_build_set_options)
++#define isl_ast_expr_free (*isl_pointers__.p_isl_ast_expr_free)
++#define isl_ast_expr_from_val (*isl_pointers__.p_isl_ast_expr_from_val)
++#define isl_ast_expr_get_ctx (*isl_pointers__.p_isl_ast_expr_get_ctx)
++#define isl_ast_expr_get_id (*isl_pointers__.p_isl_ast_expr_get_id)
++#define isl_ast_expr_get_op_arg (*isl_pointers__.p_isl_ast_expr_get_op_arg)
++#define isl_ast_expr_get_op_n_arg (*isl_pointers__.p_isl_ast_expr_get_op_n_arg)
++#define isl_ast_expr_get_op_type (*isl_pointers__.p_isl_ast_expr_get_op_type)
++#define isl_ast_expr_get_type (*isl_pointers__.p_isl_ast_expr_get_type)
++#define isl_ast_expr_get_val (*isl_pointers__.p_isl_ast_expr_get_val)
++#define isl_ast_expr_sub (*isl_pointers__.p_isl_ast_expr_sub)
++#define isl_ast_node_block_get_children (*isl_pointers__.p_isl_ast_node_block_get_children)
++#define isl_ast_node_for_get_body (*isl_pointers__.p_isl_ast_node_for_get_body)
++#define isl_ast_node_for_get_cond (*isl_pointers__.p_isl_ast_node_for_get_cond)
++#define isl_ast_node_for_get_inc (*isl_pointers__.p_isl_ast_node_for_get_inc)
++#define isl_ast_node_for_get_init (*isl_pointers__.p_isl_ast_node_for_get_init)
++#define isl_ast_node_for_get_iterator (*isl_pointers__.p_isl_ast_node_for_get_iterator)
++#define isl_ast_node_free (*isl_pointers__.p_isl_ast_node_free)
++#define isl_ast_node_get_annotation (*isl_pointers__.p_isl_ast_node_get_annotation)
++#define isl_ast_node_get_type (*isl_pointers__.p_isl_ast_node_get_type)
++#define isl_ast_node_if_get_cond (*isl_pointers__.p_isl_ast_node_if_get_cond)
++#define isl_ast_node_if_get_else (*isl_pointers__.p_isl_ast_node_if_get_else)
++#define isl_ast_node_if_get_then (*isl_pointers__.p_isl_ast_node_if_get_then)
++#define isl_ast_node_list_free (*isl_pointers__.p_isl_ast_node_list_free)
++#define isl_ast_node_list_get_ast_node (*isl_pointers__.p_isl_ast_node_list_get_ast_node)
++#define isl_ast_node_list_n_ast_node (*isl_pointers__.p_isl_ast_node_list_n_ast_node)
++#define isl_ast_node_user_get_expr (*isl_pointers__.p_isl_ast_node_user_get_expr)
++#define isl_constraint_set_coefficient_val (*isl_pointers__.p_isl_constraint_set_coefficient_val)
++#define isl_constraint_set_constant_val (*isl_pointers__.p_isl_constraint_set_constant_val)
++#define isl_id_get_user (*isl_pointers__.p_isl_id_get_user)
++#define isl_local_space_get_ctx (*isl_pointers__.p_isl_local_space_get_ctx)
++#define isl_map_fix_val (*isl_pointers__.p_isl_map_fix_val)
++#define isl_options_set_ast_build_atomic_upper_bound (*isl_pointers__.p_isl_options_set_ast_build_atomic_upper_bound)
++#define isl_printer_print_ast_node (*isl_pointers__.p_isl_printer_print_ast_node)
++#define isl_printer_print_str (*isl_pointers__.p_isl_printer_print_str)
++#define isl_printer_set_output_format (*isl_pointers__.p_isl_printer_set_output_format)
++#define isl_pw_aff_mod_val (*isl_pointers__.p_isl_pw_aff_mod_val)
++#define isl_schedule_constraints_compute_schedule (*isl_pointers__.p_isl_schedule_constraints_compute_schedule)
++#define isl_schedule_constraints_on_domain (*isl_pointers__.p_isl_schedule_constraints_on_domain)
++#define isl_schedule_constraints_set_coincidence (*isl_pointers__.p_isl_schedule_constraints_set_coincidence)
++#define isl_schedule_constraints_set_proximity (*isl_pointers__.p_isl_schedule_constraints_set_proximity)
++#define isl_schedule_constraints_set_validity (*isl_pointers__.p_isl_schedule_constraints_set_validity)
++#define isl_set_get_dim_id (*isl_pointers__.p_isl_set_get_dim_id)
++#define isl_set_max_val (*isl_pointers__.p_isl_set_max_val)
++#define isl_set_min_val (*isl_pointers__.p_isl_set_min_val)
++#define isl_set_params (*isl_pointers__.p_isl_set_params)
++#define isl_space_align_params (*isl_pointers__.p_isl_space_align_params)
++#define isl_space_map_from_domain_and_range (*isl_pointers__.p_isl_space_map_from_domain_and_range)
++#define isl_space_set_tuple_name (*isl_pointers__.p_isl_space_set_tuple_name)
++#define isl_space_wrap (*isl_pointers__.p_isl_space_wrap)
++#define isl_union_map_from_domain_and_range (*isl_pointers__.p_isl_union_map_from_domain_and_range)
++#define isl_union_map_range (*isl_pointers__.p_isl_union_map_range)
++#define isl_union_set_union (*isl_pointers__.p_isl_union_set_union)
++#define isl_union_set_universe (*isl_pointers__.p_isl_union_set_universe)
++#define isl_val_2exp (*isl_pointers__.p_isl_val_2exp)
++#define isl_val_add_ui (*isl_pointers__.p_isl_val_add_ui)
++#define isl_val_copy (*isl_pointers__.p_isl_val_copy)
++#define isl_val_free (*isl_pointers__.p_isl_val_free)
++#define isl_val_get_num_gmp (*isl_pointers__.p_isl_val_get_num_gmp)
++#define isl_val_int_from_gmp (*isl_pointers__.p_isl_val_int_from_gmp)
++#define isl_val_int_from_si (*isl_pointers__.p_isl_val_int_from_si)
++#define isl_val_int_from_ui (*isl_pointers__.p_isl_val_int_from_ui)
++#define isl_val_mul (*isl_pointers__.p_isl_val_mul)
++#define isl_val_neg (*isl_pointers__.p_isl_val_neg)
++#define isl_val_sub (*isl_pointers__.p_isl_val_sub)
++
+ typedef struct poly_dr *poly_dr_p;
+ 
+ typedef struct poly_bb *poly_bb_p;
+--- gcc/graphite.c.jj	2012-12-13 11:31:00.000000000 +0100
++++ gcc/graphite.c	2012-12-14 13:40:44.155136961 +0100
+@@ -90,6 +90,34 @@ along with GCC; see the file COPYING3.
+ #include "graphite-isl-ast-to-gimple.h"
+ #include "graphite-sese-to-poly.h"
+ 
++__typeof (isl_pointers__) isl_pointers__;
++
++static bool
++init_isl_pointers (void)
++{
++  void *h;
++
++  if (isl_pointers__.inited)
++    return isl_pointers__.h != NULL;
++  h = dlopen ("libisl.so.13", RTLD_LAZY);
++  isl_pointers__.h = h;
++  if (h == NULL)
++    return false;
++#define DYNSYM(x) \
++  do \
++    { \
++      union { __typeof (isl_pointers__.p_##x) p; void *q; } u; \
++      u.q = dlsym (h, #x); \
++      if (u.q == NULL) \
++	return false; \
++      isl_pointers__.p_##x = u.p; \
++    } \
++  while (0)
++  DYNSYMS
++#undef DYNSYM
++  return true;
++}
++
+ /* Print global statistics to FILE.  */
+ 
+ static void
+@@ -285,6 +313,15 @@ graphite_transform_loops (void)
+   if (parallelized_function_p (cfun->decl))
+     return;
+ 
++  if (number_of_loops (cfun) <= 1)
++    return;
++
++  if (!init_isl_pointers ())
++    {
++      sorry ("Graphite loop optimizations cannot be used");
++      return;
++    }
++
+   ctx = isl_ctx_alloc ();
+   isl_options_set_on_error (ctx, ISL_ON_ERROR_ABORT);
+   if (!graphite_initialize (ctx))
diff --git a/5.1.0/gentoo/85_all_gcc5-aarch64-pr65689.patch b/5.1.0/gentoo/85_all_gcc5-aarch64-pr65689.patch
new file mode 100644
index 0000000..d4358ea
--- /dev/null
+++ b/5.1.0/gentoo/85_all_gcc5-aarch64-pr65689.patch
@@ -0,0 +1,233 @@
+https://gcc.gnu.org/PR65689
+
+2015-04-17  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/65689
+	* genpreds.c (struct constraint_data): Add maybe_allows_reg and
+	maybe_allows_mem bitfields.
+	(maybe_allows_none_start, maybe_allows_none_end,
+	maybe_allows_reg_start, maybe_allows_reg_end, maybe_allows_mem_start,
+	maybe_allows_mem_end): New variables.
+	(compute_maybe_allows): New function.
+	(add_constraint): Use it to initialize maybe_allows_reg and
+	maybe_allows_mem fields.
+	(choose_enum_order): Sort the non-is_register/is_const_int/is_memory/
+	is_address constraints such that those that allow neither mem nor
+	reg come first, then those that only allow reg but not mem, then
+	those that only allow mem but not reg, then the rest.
+	(write_allows_reg_mem_function): New function.
+	(write_tm_preds_h): Call it.
+	* stmt.c (parse_output_constraint, parse_input_constraint): Use
+	the generated insn_extra_constraint_allows_reg_mem function
+	instead of always setting *allows_reg = true; *allows_mem = true;
+	for unknown extra constraints.
+
+	* gcc.target/aarch64/c-output-template-4.c: New test.
+
+--- gcc/genpreds.c.jj	2015-04-08 18:23:50.643556230 +0200
++++ gcc/genpreds.c	2015-04-17 17:44:23.097650110 +0200
+@@ -640,12 +640,14 @@ struct constraint_data
+   const char *regclass;  /* for register constraints */
+   rtx exp;               /* for other constraints */
+   unsigned int lineno;   /* line of definition */
+-  unsigned int is_register  : 1;
+-  unsigned int is_const_int : 1;
+-  unsigned int is_const_dbl : 1;
+-  unsigned int is_extra     : 1;
+-  unsigned int is_memory    : 1;
+-  unsigned int is_address   : 1;
++  unsigned int is_register	: 1;
++  unsigned int is_const_int	: 1;
++  unsigned int is_const_dbl	: 1;
++  unsigned int is_extra		: 1;
++  unsigned int is_memory	: 1;
++  unsigned int is_address	: 1;
++  unsigned int maybe_allows_reg : 1;
++  unsigned int maybe_allows_mem : 1;
+ };
+ 
+ /* Overview of all constraints beginning with a given letter.  */
+@@ -691,6 +693,9 @@ static unsigned int satisfied_start;
+ static unsigned int const_int_start, const_int_end;
+ static unsigned int memory_start, memory_end;
+ static unsigned int address_start, address_end;
++static unsigned int maybe_allows_none_start, maybe_allows_none_end;
++static unsigned int maybe_allows_reg_start, maybe_allows_reg_end;
++static unsigned int maybe_allows_mem_start, maybe_allows_mem_end;
+ 
+ /* Convert NAME, which contains angle brackets and/or underscores, to
+    a string that can be used as part of a C identifier.  The string
+@@ -711,6 +716,34 @@ mangle (const char *name)
+   return XOBFINISH (rtl_obstack, const char *);
+ }
+ 
++/* Return a bitmask, bit 1 if EXP maybe allows a REG/SUBREG, 2 if EXP
++   maybe allows a MEM.  Bits should be clear only when we are sure it
++   will not allow a REG/SUBREG or a MEM.  */
++static int
++compute_maybe_allows (rtx exp)
++{
++  switch (GET_CODE (exp))
++    {
++    case IF_THEN_ELSE:
++      /* Conservative answer is like IOR, of the THEN and ELSE branches.  */
++      return compute_maybe_allows (XEXP (exp, 1))
++	     | compute_maybe_allows (XEXP (exp, 2));
++    case AND:
++      return compute_maybe_allows (XEXP (exp, 0))
++	     & compute_maybe_allows (XEXP (exp, 1));
++    case IOR:
++      return compute_maybe_allows (XEXP (exp, 0))
++	     | compute_maybe_allows (XEXP (exp, 1));
++    case MATCH_CODE:
++      if (*XSTR (exp, 1) == '\0')
++	return (strstr (XSTR (exp, 0), "reg") != NULL ? 1 : 0)
++	       | (strstr (XSTR (exp, 0), "mem") != NULL ? 2 : 0);
++      /* FALLTHRU */
++    default:
++      return 3;
++    }
++}
++
+ /* Add one constraint, of any sort, to the tables.  NAME is its name;
+    REGCLASS is the register class, if any; EXP is the expression to
+    test, if any;  IS_MEMORY and IS_ADDRESS indicate memory and address
+@@ -866,6 +899,11 @@ add_constraint (const char *name, const
+   c->is_extra = !(regclass || is_const_int || is_const_dbl);
+   c->is_memory = is_memory;
+   c->is_address = is_address;
++  int maybe_allows = 3;
++  if (exp)
++    maybe_allows = compute_maybe_allows (exp);
++  c->maybe_allows_reg = (maybe_allows & 1) != 0;
++  c->maybe_allows_mem = (maybe_allows & 2) != 0;
+ 
+   c->next_this_letter = *slot;
+   *slot = c;
+@@ -940,8 +978,30 @@ choose_enum_order (void)
+       enum_order[next++] = c;
+   address_end = next;
+ 
++  maybe_allows_none_start = next;
++  FOR_ALL_CONSTRAINTS (c)
++    if (!c->is_register && !c->is_const_int && !c->is_memory && !c->is_address
++	&& !c->maybe_allows_reg && !c->maybe_allows_mem)
++      enum_order[next++] = c;
++  maybe_allows_none_end = next;
++
++  maybe_allows_reg_start = next;
++  FOR_ALL_CONSTRAINTS (c)
++    if (!c->is_register && !c->is_const_int && !c->is_memory && !c->is_address
++	&& c->maybe_allows_reg && !c->maybe_allows_mem)
++      enum_order[next++] = c;
++  maybe_allows_reg_end = next;
++
++  maybe_allows_mem_start = next;
++  FOR_ALL_CONSTRAINTS (c)
++    if (!c->is_register && !c->is_const_int && !c->is_memory && !c->is_address
++	&& !c->maybe_allows_reg && c->maybe_allows_mem)
++      enum_order[next++] = c;
++  maybe_allows_mem_end = next;
++
+   FOR_ALL_CONSTRAINTS (c)
+-    if (!c->is_register && !c->is_const_int && !c->is_memory && !c->is_address)
++    if (!c->is_register && !c->is_const_int && !c->is_memory && !c->is_address
++	&& c->maybe_allows_reg && c->maybe_allows_mem)
+       enum_order[next++] = c;
+   gcc_assert (next == num_constraints);
+ }
+@@ -1229,6 +1289,41 @@ write_range_function (const char *name,
+ 	    "}\n\n", name);
+ }
+ 
++/* Write a definition for insn_extra_constraint_allows_reg_mem function.  */
++static void
++write_allows_reg_mem_function (void)
++{
++  printf ("static inline void\n"
++	  "insn_extra_constraint_allows_reg_mem (enum constraint_num c,\n"
++	  "\t\t\t\t      bool *allows_reg, bool *allows_mem)\n"
++	  "{\n");
++  if (maybe_allows_none_start != maybe_allows_none_end)
++    printf ("  if (c >= CONSTRAINT_%s && c <= CONSTRAINT_%s)\n"
++	    "    return;\n",
++	    enum_order[maybe_allows_none_start]->c_name,
++	    enum_order[maybe_allows_none_end - 1]->c_name);
++  if (maybe_allows_reg_start != maybe_allows_reg_end)
++    printf ("  if (c >= CONSTRAINT_%s && c <= CONSTRAINT_%s)\n"
++	    "    {\n"
++	    "      *allows_reg = true;\n"
++	    "      return;\n"
++	    "    }\n",
++	    enum_order[maybe_allows_reg_start]->c_name,
++	    enum_order[maybe_allows_reg_end - 1]->c_name);
++  if (maybe_allows_mem_start != maybe_allows_mem_end)
++    printf ("  if (c >= CONSTRAINT_%s && c <= CONSTRAINT_%s)\n"
++	    "    {\n"
++	    "      *allows_mem = true;\n"
++	    "      return;\n"
++	    "    }\n",
++	    enum_order[maybe_allows_mem_start]->c_name,
++	    enum_order[maybe_allows_mem_end - 1]->c_name);
++  printf ("  (void) c;\n"
++	  "  *allows_reg = true;\n"
++	  "  *allows_mem = true;\n"
++	  "}\n\n");
++}
++
+ /* VEC is a list of key/value pairs, with the keys being lower bounds
+    of a range.  Output a decision tree that handles the keys covered by
+    [VEC[START], VEC[END]), returning FALLBACK for keys lower then VEC[START]'s.
+@@ -1326,6 +1421,7 @@ write_tm_preds_h (void)
+ 			    memory_start, memory_end);
+       write_range_function ("insn_extra_address_constraint",
+ 			    address_start, address_end);
++      write_allows_reg_mem_function ();
+ 
+       if (constraint_max_namelen > 1)
+         {
+--- gcc/stmt.c.jj	2015-04-08 18:23:50.660555956 +0200
++++ gcc/stmt.c	2015-04-17 17:36:50.623044548 +0200
+@@ -342,13 +342,7 @@ parse_output_constraint (const char **co
+ 	else if (insn_extra_memory_constraint (cn))
+ 	  *allows_mem = true;
+ 	else
+-	  {
+-	    /* Otherwise we can't assume anything about the nature of
+-	       the constraint except that it isn't purely registers.
+-	       Treat it like "g" and hope for the best.  */
+-	    *allows_reg = true;
+-	    *allows_mem = true;
+-	  }
++	  insn_extra_constraint_allows_reg_mem (cn, allows_reg, allows_mem);
+ 	break;
+       }
+ 
+@@ -465,13 +459,7 @@ parse_input_constraint (const char **con
+ 	else if (insn_extra_memory_constraint (cn))
+ 	  *allows_mem = true;
+ 	else
+-	  {
+-	    /* Otherwise we can't assume anything about the nature of
+-	       the constraint except that it isn't purely registers.
+-	       Treat it like "g" and hope for the best.  */
+-	    *allows_reg = true;
+-	    *allows_mem = true;
+-	  }
++	  insn_extra_constraint_allows_reg_mem (cn, allows_reg, allows_mem);
+ 	break;
+       }
+ 
+--- gcc/testsuite/gcc.target/aarch64/c-output-template-4.c.jj	2015-04-17 17:48:27.588654584 +0200
++++ gcc/testsuite/gcc.target/aarch64/c-output-template-4.c	2015-04-17 17:48:22.149743468 +0200
+@@ -0,0 +1,10 @@
++/* { dg-do compile } */
++/* { dg-options "-O0" } */
++
++void
++test (void)
++{
++    __asm__ ("@ %c0" : : "S" (&test + 4));
++}
++
++/* { dg-final { scan-assembler "@ test\\+4" } } */
diff --git a/5.1.0/gentoo/86_all_gcc5-pie-copy-relocs-pr65780.patch b/5.1.0/gentoo/86_all_gcc5-pie-copy-relocs-pr65780.patch
new file mode 100644
index 0000000..666c04b
--- /dev/null
+++ b/5.1.0/gentoo/86_all_gcc5-pie-copy-relocs-pr65780.patch
@@ -0,0 +1,48 @@
+https://gcc.gnu.org/PR65780
+
+2015-04-22  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/65780
+	* config/s390/linux.h (TARGET_BINDS_LOCAL_P): Define to
+	default_binds_local_p_2.
+	* config/arm/linux-elf.h (TARGET_BINDS_LOCAL_P): Likewise.
+	* config/aarch64/aarch64-linux.h (TARGET_BINDS_LOCAL_P): Likewise.
+
+--- gcc/config/s390/linux.h.jj	2015-01-05 13:07:16.000000000 +0100
++++ gcc/config/s390/linux.h	2015-04-22 17:39:38.880273650 +0200
+@@ -90,4 +90,10 @@ along with GCC; see the file COPYING3.
+ #undef TARGET_LIBC_HAS_FUNCTION
+ #define TARGET_LIBC_HAS_FUNCTION gnu_libc_has_function
+ 
++/* Uninitialized common symbols in non-PIE executables, even with
++   strong definitions in dependent shared libraries, will resolve
++   to COPY relocated symbol in the executable.  See PR65780.  */
++#undef TARGET_BINDS_LOCAL_P
++#define TARGET_BINDS_LOCAL_P default_binds_local_p_2
++
+ #endif
+--- gcc/config/arm/linux-elf.h.jj	2015-01-05 13:07:16.000000000 +0100
++++ gcc/config/arm/linux-elf.h	2015-04-22 17:42:35.979420149 +0200
+@@ -118,3 +118,9 @@
+ /* Add .note.GNU-stack.  */
+ #undef NEED_INDICATE_EXEC_STACK
+ #define NEED_INDICATE_EXEC_STACK	1
++
++/* Uninitialized common symbols in non-PIE executables, even with
++   strong definitions in dependent shared libraries, will resolve
++   to COPY relocated symbol in the executable.  See PR65780.  */
++#undef TARGET_BINDS_LOCAL_P
++#define TARGET_BINDS_LOCAL_P default_binds_local_p_2
+--- gcc/config/aarch64/aarch64-linux.h.jj	2015-01-05 13:07:17.000000000 +0100
++++ gcc/config/aarch64/aarch64-linux.h	2015-04-22 17:40:46.395185820 +0200
+@@ -69,4 +69,10 @@
+ 
+ #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+ 
++/* Uninitialized common symbols in non-PIE executables, even with
++   strong definitions in dependent shared libraries, will resolve
++   to COPY relocated symbol in the executable.  See PR65780.  */
++#undef TARGET_BINDS_LOCAL_P
++#define TARGET_BINDS_LOCAL_P default_binds_local_p_2
++
+ #endif  /* GCC_AARCH64_LINUX_H */
diff --git a/5.1.0/gentoo/90_all_pr55930-dependency-tracking.patch b/5.1.0/gentoo/90_all_pr55930-dependency-tracking.patch
new file mode 100644
index 0000000..a8743e0
--- /dev/null
+++ b/5.1.0/gentoo/90_all_pr55930-dependency-tracking.patch
@@ -0,0 +1,18 @@
+libatomic build failure if configured with --disable-dependency-tracking
+load_n.c:115:1: fatal error: opening dependency file .deps/load_1_.lo.Ppo: No such file or directory
+
+https://bugs.gentoo.org/463463
+http://gcc.gnu.org/PR55930
+
+--- a/libatomic/Makefile.in
++++ b/libatomic/Makefile.in
+@@ -298,7 +298,8 @@ PAT_N = $(word 2,$(PAT_SPLIT))
+ PAT_S = $(word 3,$(PAT_SPLIT))
+ IFUNC_DEF = -DIFUNC_ALT=$(PAT_S)
+ IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS))
+-M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_TRUE@M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_FALSE@M_DEPS =
+ M_SIZE = -DN=$(PAT_N)
+ M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT))
+ M_FILE = $(PAT_BASE)_n.c
diff --git a/5.1.0/gentoo/README.history b/5.1.0/gentoo/README.history
new file mode 100644
index 0000000..24761ab
--- /dev/null
+++ b/5.1.0/gentoo/README.history
@@ -0,0 +1,23 @@
+1.0		23 Apr 2015
+	+ 05_all_gcc-spec-env.patch
+	+ 09_all_default-ssp.patch
+	+ 10_all_default-fortify-source.patch
+	+ 11_all_default-warn-format-security.patch
+	+ 12_all_default-warn-trampolines.patch
+	+ 20_all_msgfmt-libstdc++-link.patch
+	+ 25_all_alpha-mieee-default.patch
+	+ 26_all_alpha-asm-mcpu.patch
+	+ 29_all_arm_armv4t-default.patch
+	+ 30_all_freebsd-pie.patch
+	+ 34_all_ia64_note.GNU-stack.patch
+	+ 38_all_sh_pr24836_all-archs.patch
+	+ 42_all_superh_default-multilib.patch
+	+ 50_all_libiberty-asprintf.patch
+	+ 51_all_libiberty-pic.patch
+	+ 52_all_netbsd-Bsymbolic.patch
+	+ 53_all_libitm-no-fortify-source.patch
+	+ 67_all_gcc-poison-system-directories.patch
+	+ 74_all_gcc5_isl-dl.patch
+	+ 85_all_gcc5-aarch64-pr65689.patch
+	+ 86_all_gcc5-pie-copy-relocs-pr65780.patch
+	+ 90_all_pr55930-dependency-tracking.patch
diff --git a/5.1.0/uclibc/90_all_100-uclibc-conf.patch b/5.1.0/uclibc/90_all_100-uclibc-conf.patch
new file mode 100644
index 0000000..3460f9e
--- /dev/null
+++ b/5.1.0/uclibc/90_all_100-uclibc-conf.patch
@@ -0,0 +1,33 @@
+--- gcc/contrib/regression/objs-gcc.sh
++++ gcc/contrib/regression/objs-gcc.sh
+@@ -105,6 +105,10 @@
+  then
+   make all-gdb all-dejagnu all-ld || exit 1
+   make install-gdb install-dejagnu install-ld || exit 1
++elif [ $H_REAL_TARGET = $H_REAL_HOST -a $H_REAL_TARGET = i686-pc-linux-uclibc ]
++ then
++  make all-gdb all-dejagnu all-ld || exit 1
++  make install-gdb install-dejagnu install-ld || exit 1
+ elif [ $H_REAL_TARGET = $H_REAL_HOST ] ; then
+   make bootstrap || exit 1
+   make install || exit 1
+--- gcc/libjava/classpath/ltconfig
++++ gcc/libjava/classpath/ltconfig
+@@ -603,7 +603,7 @@
+ 
+ # Transform linux* to *-*-linux-gnu*, to support old configure scripts.
+ case $host_os in
+-linux-gnu*) ;;
++linux-gnu*|linux-uclibc*) ;;
+ linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
+ esac
+ 
+@@ -1251,7 +1251,7 @@
+   ;;
+ 
+ # This must be Linux ELF.
+-linux-gnu*)
++linux*)
+   version_type=linux
+   need_lib_prefix=no
+   need_version=no
diff --git a/5.1.0/uclibc/90_all_301-missing-execinfo_h.patch b/5.1.0/uclibc/90_all_301-missing-execinfo_h.patch
new file mode 100644
index 0000000..0e2092f
--- /dev/null
+++ b/5.1.0/uclibc/90_all_301-missing-execinfo_h.patch
@@ -0,0 +1,11 @@
+--- gcc-4.0.0/boehm-gc/include/gc.h-orig	2005-04-28 22:28:57.000000000 -0500
++++ gcc-4.0.0/boehm-gc/include/gc.h	2005-04-28 22:30:38.000000000 -0500
+@@ -500,7 +500,7 @@
+ #ifdef __linux__
+ # include <features.h>
+ # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
+-     && !defined(__ia64__)
++     && !defined(__ia64__) && !defined(__UCLIBC__)
+ #   ifndef GC_HAVE_BUILTIN_BACKTRACE
+ #     define GC_HAVE_BUILTIN_BACKTRACE
+ #   endif
diff --git a/5.1.0/uclibc/90_all_302-c99-snprintf.patch b/5.1.0/uclibc/90_all_302-c99-snprintf.patch
new file mode 100644
index 0000000..ba51a0e
--- /dev/null
+++ b/5.1.0/uclibc/90_all_302-c99-snprintf.patch
@@ -0,0 +1,13 @@
+Index: gcc-4.3.0/libstdc++-v3/include/c_global/cstdio
+===================================================================
+--- gcc-4.3.0/libstdc++-v3/include/c_global/cstdio	(revision 129202)
++++ gcc-4.3.0/libstdc++-v3/include/c_global/cstdio	(working copy)
+@@ -144,7 +144,7 @@
+ 
+ _GLIBCXX_END_NAMESPACE
+ 
+-#if _GLIBCXX_USE_C99
++#if _GLIBCXX_USE_C99 || defined __UCLIBC__
+ 
+ #undef snprintf
+ #undef vfscanf