patches/gcc/4.4.1/110-trampolinewarn.patch
author Darcy Watkins <dwatkins@tranzeo.com>
Thu Aug 05 18:19:07 2010 +0200 (2010-08-05)
branch1.8
changeset 2073 a3b7a63dce01
parent 1393 b432bd628b10
permissions -rw-r--r--
cc/gcc: with static ppl, correctly link with libm

On some Fedora boxen (at least FC13), it is also required
to link with libm when static ppl is used.
(transplanted from bcd33fce4db9c18223b59ecdc96f10bf6dd574de)
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diff -durN gcc-4.4.0.orig/gcc/builtins.c gcc-4.4.0/gcc/builtins.c
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--- gcc-4.4.0.orig/gcc/builtins.c	2009-03-30 19:42:27.000000000 +0200
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+++ gcc-4.4.0/gcc/builtins.c	2009-05-27 21:38:01.000000000 +0200
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@@ -5768,6 +5768,9 @@
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   trampolines_created = 1;
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   INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);
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+  if (warn_trampolines)
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+    warning (OPT_Wtrampolines, "generating trampoline in object (requires executable stack)");
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+
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   return const0_rtx;
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 }
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diff -durN gcc-4.4.0.orig/gcc/common.opt gcc-4.4.0/gcc/common.opt
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--- gcc-4.4.0.orig/gcc/common.opt	2009-03-28 18:28:45.000000000 +0100
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+++ gcc-4.4.0/gcc/common.opt	2009-05-27 21:38:01.000000000 +0200
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@@ -197,6 +197,10 @@
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 Common Var(warn_type_limits) Init(-1) Warning
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 Warn if a comparison is always true or always false due to the limited range of the data type
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+Wtrampolines
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+Common Var(warn_trampolines) Init(1)
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+Warn whenever a trampoline is generated
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+
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 Wuninitialized
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 Common Var(warn_uninitialized) Warning
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 Warn about uninitialized automatic variables