/usr/src/gcc-4.4/debian/patches/gcc-default-relro.diff is in gcc-4.4-source 4.4.7-8ubuntu1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | # DP: Turn on -Wl,-z,relro by default.
---
gcc/doc/invoke.texi | 3 +++
gcc/gcc.c | 1 +
2 files changed, 4 insertions(+), 0 deletions(-)
--- a/src/gcc/doc/invoke.texi
+++ b/src/gcc/doc/invoke.texi
@@ -8082,6 +8082,9 @@ For example, @samp{-Wl,-Map,output.map} passes @samp{-Map output.map} to the
linker. When using the GNU linker, you can also get the same effect with
@samp{-Wl,-Map=output.map}.
+NOTE: In Ubuntu 8.10 and later versions, for LDFLAGS, the option
+@option{-Wl,-z,relro} is used. To disable, use @option{-Wl,-z,norelro}.
+
@item -u @var{symbol}
@opindex u
Pretend the symbol @var{symbol} is undefined, to force linking of
--- a/src/gcc/gcc.c~ 2010-03-21 09:32:25.000000000 +0100
+++ b/src/gcc/gcc.c 2010-03-21 09:34:26.434838978 +0100
@@ -749,6 +749,7 @@
%{fuse-ld=gold:-use-gold} \
%{fuse-ld=bfd:-use-ld}" \
"%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
+ -z relro\
%{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
%{static:} %{L*} %(mfwrap) %(link_libgcc) %o\
%{fopenmp|ftree-parallelize-loops=*:%:include(libgomp.spec)%(link_gomp)} %(mflib)\
|