stop enabling trampoline warnings by default in older versions for compatibility and simplicity -- these are really only used for old builds now and cross-compiling

2 files changed, 1 insertions, 64 deletions

diff --git a/4.5.1/gentoo/09_all_gcc-4.5-Wtrampolines.patch b/4.5.1/gentoo/09_all_gcc-4.5-Wtrampolines.patch
deleted file mode 100644
index 9c95c1e..0000000
--- a/4.5.1/gentoo/09_all_gcc-4.5-Wtrampolines.patch
+++ /dev/null
@@ -1,64 +0,0 @@
-2010-07-15  Magnus Granberg  <zorry@gentoo.org>
-            Kevin F. Quinn  <kevquinn@gentoo.org>
-
-            * builtins.c (expand_builtin_init_trampoline): If
-              -Wtrampolines make a warning.
-            * common.opt:  Add -Wtrampolines.
-            * doc/invoke.texi:  Add -Wtrampolines.
-
-2010-07-31	Magnus Granberg <zorry@gentoo.org>
-
-            #328451 set -Wtrampolines as default
-
-http://gcc.gnu.org/viewcvs?view=revision&revision=162205
-
---- a/gcc/builtins.c
-+++ b/gcc/builtins.c
-@@ -5155,6 +5155,10 @@ expand_builtin_init_trampoline (tree exp)
-   targetm.calls.trampoline_init (m_tramp, t_func, r_chain);
- 
-   trampolines_created = 1;
-+
-+  warning_at (DECL_SOURCE_LOCATION (t_func), OPT_Wtrampolines,
-+              "trampoline generated for nested function %qD", t_func);
-+
-   return const0_rtx;
- }
- 
---- a/gcc/common.opt
-+++ b/gcc/common.opt
-@@ -192,6 +192,10 @@ Wsystem-headers
- Common Var(warn_system_headers) Warning
- Do not suppress warnings from system headers
- 
-+Wtrampolines
-+Common Var(warn_trampolines) Init(1) Warning
-+Warn whenever a trampoline is generated
-+
- Wtype-limits
- Common Var(warn_type_limits) Init(-1) Warning
- Warn if a comparison is always true or always false due to the limited range of the data type
---- a/gcc/doc/invoke.texi
-+++ b/gcc/doc/invoke.texi
-@@ -3611,6 +3611,21 @@ code.  However, note that using @option{-Wall} in conjunction with this
- option will @emph{not} warn about unknown pragmas in system
- headers---for that, @option{-Wunknown-pragmas} must also be used.
- 
-+@item -Wtrampolines
-+@opindex Wtrampolines
-+@opindex Wno-trampolines
-+ Warn about trampolines generated for pointers to nested functions.
-+ 
-+ NOTE: In Gentoo, @option{-Wtrampolines} is set by default.
-+ To disable, specify @option{-Wno-trampolines}
-+
-+ A trampoline is a small piece of data or code that is created at run
-+ time on the stack when the address of a nested function is taken, and
-+ is used to call the nested function indirectly.  For some targets, it
-+ is made up of data only and thus requires no special treatment.  But,
-+ for most targets, it is made up of code and thus requires the stack
-+ to be made executable in order for the program to work properly.
-+
- @item -Wfloat-equal
- @opindex Wfloat-equal
- @opindex Wno-float-equal
diff --git a/4.5.1/gentoo/README.history b/4.5.1/gentoo/README.history
index 36201bd..779cbe3 100644
--- a/4.5.1/gentoo/README.history
+++ b/4.5.1/gentoo/README.history
@@ -1,5 +1,6 @@
 1.6		[pending]
 	- 03_all_gcc43-java-nomulti.patch
+	- 09_all_gcc-4.5-Wtrampolines.patch
 	+ 56_all_gcc-ppc-vector-pr48226.patch
 
 1.5		27 Sep 2012