nuke support for older gcc versions, except for 4.4.6 (needed for avr32 and ubicom32)

SVN-Revision: 27351

1 files changed, 0 insertions, 270 deletions

diff --git a/toolchain/gcc/patches/4.3.5/910-mbsd_multi.patch b/toolchain/gcc/patches/4.3.5/910-mbsd_multi.patch
deleted file mode 100644
index 3f03f18926..0000000000
--- a/toolchain/gcc/patches/4.3.5/910-mbsd_multi.patch
+++ /dev/null
@@ -1,270 +0,0 @@
-
-	This patch brings over a few features from MirBSD:
-	* -fhonour-copts
-	  If this option is not given, it's warned (depending
-	  on environment variables). This is to catch errors
-	  of misbuilt packages which override CFLAGS themselves.
-	* -Werror-maybe-reset
-	  Has the effect of -Wno-error if GCC_NO_WERROR is
-	  set and not '0', a no-operation otherwise. This is
-	  to be able to use -Werror in "make" but prevent
-	  GNU autoconf generated configure scripts from
-	  freaking out.
-	* Make -fno-strict-aliasing and -fno-delete-null-pointer-checks
-	  the default for -O2/-Os, because they trigger gcc bugs
-	  and can delete code with security implications.
-
-	This patch was authored by Thorsten Glaser <tg at mirbsd.de>
-	with copyright assignment to the FSF in effect.
-
---- a/gcc/c-opts.c
-+++ b/gcc/c-opts.c
-@@ -108,6 +108,9 @@ static size_t deferred_count;
- /* Number of deferred options scanned for -include.  */
- static size_t include_cursor;
- 
-+/* Check if a port honours COPTS.  */
-+static int honour_copts = 0;
-+
- static void set_Wimplicit (int);
- static void handle_OPT_d (const char *);
- static void set_std_cxx98 (int);
-@@ -462,6 +465,14 @@ c_common_handle_option (size_t scode, co
-       enable_warning_as_error ("implicit-function-declaration", value, CL_C | CL_ObjC); 
-       break;
- 
-+    case OPT_Werror_maybe_reset:
-+      {
-+	char *ev = getenv ("GCC_NO_WERROR");
-+	if ((ev != NULL) && (*ev != '0'))
-+	  cpp_opts->warnings_are_errors = 0;
-+      }
-+      break;
-+
-     case OPT_Wformat:
-       set_Wformat (value);
-       break;
-@@ -708,6 +719,12 @@ c_common_handle_option (size_t scode, co
-       flag_exceptions = value;
-       break;
- 
-+    case OPT_fhonour_copts:
-+      if (c_language == clk_c) {
-+	honour_copts++;
-+      }
-+      break;
-+
-     case OPT_fimplement_inlines:
-       flag_implement_inlines = value;
-       break;
-@@ -1248,6 +1265,47 @@ c_common_init (void)
-   /* Has to wait until now so that cpplib has its hash table.  */
-   init_pragma ();
- 
-+  if (c_language == clk_c) {
-+    char *ev = getenv ("GCC_HONOUR_COPTS");
-+    int evv;
-+    if (ev == NULL)
-+      evv = -1;
-+    else if ((*ev == '0') || (*ev == '\0'))
-+      evv = 0;
-+    else if (*ev == '1')
-+      evv = 1;
-+    else if (*ev == '2')
-+      evv = 2;
-+    else if (*ev == 's')
-+      evv = -1;
-+    else {
-+      warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
-+      evv = 1; /* maybe depend this on something like MIRBSD_NATIVE?  */
-+    }
-+    if (evv == 1) {
-+      if (honour_copts == 0) {
-+	error ("someone does not honour COPTS at all in lenient mode");
-+	return false;
-+      } else if (honour_copts != 1) {
-+	warning (0, "someone does not honour COPTS correctly, passed %d times",
-+	 honour_copts);
-+      }
-+    } else if (evv == 2) {
-+      if (honour_copts == 0) {
-+	error ("someone does not honour COPTS at all in strict mode");
-+	return false;
-+      } else if (honour_copts != 1) {
-+	error ("someone does not honour COPTS correctly, passed %d times",
-+	 honour_copts);
-+	return false;
-+      }
-+    } else if (evv == 0) {
-+      if (honour_copts != 1)
-+	inform ("someone does not honour COPTS correctly, passed %d times",
-+	 honour_copts);
-+    }
-+  }
-+
-   return true;
- }
- 
---- a/gcc/c.opt
-+++ b/gcc/c.opt
-@@ -207,6 +207,10 @@ Werror-implicit-function-declaration
- C ObjC RejectNegative Warning
- This switch is deprecated; use -Werror=implicit-function-declaration instead
- 
-+Werror-maybe-reset
-+C ObjC C++ ObjC++
-+; Documented in common.opt
-+
- Wfloat-equal
- C ObjC C++ ObjC++ Var(warn_float_equal) Warning
- Warn if testing floating point numbers for equality
-@@ -590,6 +594,9 @@ C++ ObjC++ Optimization
- fhonor-std
- C++ ObjC++
- 
-+fhonour-copts
-+C ObjC C++ ObjC++ RejectNegative
-+
- fhosted
- C ObjC
- Assume normal C execution environment
---- a/gcc/common.opt
-+++ b/gcc/common.opt
-@@ -102,6 +102,10 @@ Werror=
- Common Joined
- Treat specified warning as error
- 
-+Werror-maybe-reset
-+Common
-+If environment variable GCC_NO_WERROR is set, act as -Wno-error
-+
- Wextra
- Common Warning
- Print extra (possibly unwanted) warnings
-@@ -528,6 +532,9 @@ fguess-branch-probability
- Common Report Var(flag_guess_branch_prob) Optimization
- Enable guessing of branch probabilities
- 
-+fhonour-copts
-+Common RejectNegative
-+
- ; Nonzero means ignore `#ident' directives.  0 means handle them.
- ; Generate position-independent code for executables if possible
- ; On SVR4 targets, it also controls whether or not to emit a
---- a/gcc/opts.c
-+++ b/gcc/opts.c
-@@ -830,9 +830,6 @@ decode_options (unsigned int argc, const
-       flag_schedule_insns_after_reload = 1;
- #endif
-       flag_regmove = 1;
--      flag_strict_aliasing = 1;
--      flag_strict_overflow = 1;
--      flag_delete_null_pointer_checks = 1;
-       flag_reorder_blocks = 1;
-       flag_reorder_functions = 1;
-       flag_tree_store_ccp = 1;
-@@ -853,6 +850,10 @@ decode_options (unsigned int argc, const
- 
-   if (optimize >= 3)
-     {
-+      flag_strict_aliasing = 1;
-+      flag_strict_overflow = 1;
-+      flag_delete_null_pointer_checks = 1;
-+
-       flag_predictive_commoning = 1;
-       flag_inline_functions = 1;
-       flag_unswitch_loops = 1;
-@@ -1444,6 +1445,17 @@ common_handle_option (size_t scode, cons
-       enable_warning_as_error (arg, value, lang_mask);
-       break;
- 
-+    case OPT_Werror_maybe_reset:
-+      {
-+	char *ev = getenv ("GCC_NO_WERROR");
-+	if ((ev != NULL) && (*ev != '0'))
-+	  warnings_are_errors = 0;
-+      }
-+      break;
-+
-+    case OPT_fhonour_copts:
-+      break;
-+
-     case OPT_Wextra:
-       set_Wextra (value);
-       break;
---- a/gcc/doc/cppopts.texi
-+++ b/gcc/doc/cppopts.texi
-@@ -168,6 +168,11 @@ in older programs.  This warning is on b
- Make all warnings into hard errors.  Source code which triggers warnings
- will be rejected.
- 
-+ at item -Werror-maybe-reset
-+ at opindex Werror-maybe-reset
-+Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
-+variable is set to anything other than 0 or empty.
-+
- @item -Wsystem-headers
- @opindex Wsystem-headers
- Issue warnings for code in system headers.  These are normally unhelpful
---- a/gcc/doc/invoke.texi
-+++ b/gcc/doc/invoke.texi
-@@ -233,7 +233,7 @@ Objective-C and Objective-C++ Dialects}.
- -Wconversion  -Wcoverage-mismatch  -Wno-deprecated-declarations @gol
- -Wdisabled-optimization  -Wno-div-by-zero  @gol
- -Wempty-body  -Wno-endif-labels @gol
---Werror  -Werror=* @gol
-+-Werror  -Werror=* -Werror-maybe-reset @gol
- -Wfatal-errors  -Wfloat-equal  -Wformat  -Wformat=2 @gol
- -Wno-format-extra-args -Wformat-nonliteral @gol
- -Wformat-security  -Wformat-y2k -Wignored-qualifiers @gol
-@@ -4031,6 +4031,22 @@ This option is only supported for C and
- @option{-Wall} and by @option{-pedantic}, which can be disabled with
- @option{-Wno-pointer-sign}.
- 
-+ at item -Werror-maybe-reset
-+ at opindex Werror-maybe-reset
-+Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
-+variable is set to anything other than 0 or empty.
-+
-+ at item -fhonour-copts
-+ at opindex fhonour-copts
-+If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
-+given at least once, and warn if it is given more than once.
-+If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
-+given exactly once.
-+If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
-+is not given exactly once.
-+The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
-+This flag and environment variable only affect the C language.
-+
- @item -Wstack-protector
- @opindex Wstack-protector
- @opindex Wno-stack-protector
-@@ -5493,7 +5509,7 @@ so, the first branch is redirected to ei
- second branch or a point immediately following it, depending on whether
- the condition is known to be true or false.
- 
--Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
-+Enabled at levels @option{-O3}.
- 
- @item -fsplit-wide-types
- @opindex fsplit-wide-types
-@@ -5638,7 +5654,7 @@ safely dereference null pointers.  Use
- @option{-fno-delete-null-pointer-checks} to disable this optimization
- for programs which depend on that behavior.
- 
--Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
-+Enabled at levels @option{-O3}.
- 
- @item -fexpensive-optimizations
- @opindex fexpensive-optimizations
---- a/gcc/java/jvspec.c
-+++ b/gcc/java/jvspec.c
-@@ -670,6 +670,7 @@ lang_specific_pre_link (void)
-      class name.  Append dummy `.c' that can be stripped by set_input so %b
-      is correct.  */ 
-   set_input (concat (main_class_name, "main.c", NULL));
-+  putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack!  */
-   err = do_spec (jvgenmain_spec);
-   if (err == 0)
-     {