1 files changed, 74 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-poison-parameters.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-poison-parameters.patch
new file mode 100644
index 0000000..f36fa81
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-poison-parameters.patch
@@ -0,0 +1,74 @@
+gcc: add poison parameters detection
+
+Add the logic that, if not configured with "--enable-target-optspace",
+gcc will meet error when build target app with "-Os" option.
+This could avoid potential binary crash.
+
+Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
+
+Index: gcc-4.6.0/gcc/config.in
+===================================================================
+--- gcc-4.6.0.orig/gcc/config.in
++++ gcc-4.6.0/gcc/config.in
+@@ -150,6 +150,12 @@
+ #endif
+ 
+ 
++/* Define to enable target optspace support. */
++#ifndef USED_FOR_TARGET
++#undef ENABLE_TARGET_OPTSPACE
++#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. */
+Index: gcc-4.6.0/gcc/configure
+===================================================================
+--- gcc-4.6.0.orig/gcc/configure
++++ gcc-4.6.0/gcc/configure
+@@ -26434,6 +26434,13 @@ $as_echo "#define ENABLE_LIBQUADMATH_SUP
+ fi
+ 
+ 
++if test x"$enable_target_optspace" != x; then :
++
++$as_echo "#define ENABLE_TARGET_OPTSPACE 1" >>confdefs.h
++
++fi
++
++
+ # Configure the subdirectories
+ # AC_CONFIG_SUBDIRS($subdirs)
+ 
+Index: gcc-4.6.0/gcc/configure.ac
+===================================================================
+--- gcc-4.6.0.orig/gcc/configure.ac
++++ gcc-4.6.0/gcc/configure.ac
+@@ -4907,6 +4907,11 @@ if test "${ENABLE_LIBQUADMATH_SUPPORT}"
+ fi
+ 
+ 
++AC_SUBST(enable_target_optspace)
++if test x"$enable_target_optspace" != x; then
++  AC_DEFINE(ENABLE_TARGET_OPTSPACE, 1, [Define to enable target optspace support.])
++fi
++
+ # Configure the subdirectories
+ # AC_CONFIG_SUBDIRS($subdirs)
+ 
+Index: gcc-4.6.0/gcc/opts.c
+===================================================================
+--- gcc-4.6.0.orig/gcc/opts.c
++++ gcc-4.6.0/gcc/opts.c
+@@ -605,6 +605,10 @@ default_options_optimization (struct gcc
+     maybe_set_param_value (PARAM_MIN_CROSSJUMP_INSNS,
+ 			   default_param_value (PARAM_MIN_CROSSJUMP_INSNS),
+ 			   opts->x_param_values, opts_set->x_param_values);
++#ifndef ENABLE_TARGET_OPTSPACE
++  if (optimize_size == 1)
++    error ("Do not use -Os option if --enable-target-optspace is not set.");
++#endif
+ 
+   /* Allow default optimizations to be specified on a per-machine basis.  */
+   maybe_default_options (opts, opts_set,