- start 4.8

git-svn-id: svn://svn.debian.org/svn/gcccvs/branches/sid/gcc-4.8@6242 6ca36cf4-e1d1-0310-8c6f-e303bb2178ca

1 files changed, 36 insertions, 0 deletions

diff --git a/debian/patches/gcc-default-fortify-source.diff b/debian/patches/gcc-default-fortify-source.diff
new file mode 100644
index 0000000..87489bd
--- /dev/null
+++ b/debian/patches/gcc-default-fortify-source.diff
@@ -0,0 +1,36 @@
+# DP: Turn on -D_FORTIFY_SOURCE=2 by default for C, C++, ObjC, ObjC++,
+# DP: if the optimization level is > 0
+
+---
+ gcc/doc/invoke.texi          |    6 ++++++
+ gcc/c-family/c-cppbuiltin.c  |    3 +
+ 2 files changed, 9 insertions(+), 0 deletions(-)
+
+--- a/src/gcc/doc/invoke.texi
++++ b/src/gcc/doc/invoke.texi
+@@ -5972,6 +5972,12 @@
+ Please note the warning under @option{-fgcse} about
+ invoking @option{-O2} on programs that use computed gotos.
+ 
++NOTE: In Ubuntu 8.10 and later versions, @option{-D_FORTIFY_SOURCE=2} is
++set by default, and is activated when @option{-O} is set to 2 or higher.
++This enables additional compile-time and run-time checks for several libc
++functions.  To disable, specify either @option{-U_FORTIFY_SOURCE} or
++@option{-D_FORTIFY_SOURCE=0}.
++
+ @item -O3
+ @opindex O3
+ Optimize yet more.  @option{-O3} turns on all optimizations specified
+--- a/src/gcc/c-family/c-cppbuiltin.c
++++ b/src/gcc/c-family/c-cppbuiltin.c
+@@ -731,6 +731,10 @@
+   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 for optimization levels > 0 */
++  if (optimize)
++    builtin_define_with_int_value ("_FORTIFY_SOURCE", 2);
++
+   /* Misc.  */
+   if (flag_gnu89_inline)
+     cpp_define (pfile, "__GNUC_GNU_INLINE__");