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[packages/trusty/cirros-testvm.git] / cirros-testvm / src-cirros / buildroot-2015.05 / package / liburcu / 0001-Only-blacklist-ARM-gcc-4.8.0-and-4.8.1.patch

diff --git a/cirros-testvm/src-cirros/buildroot-2015.05/package/liburcu/0001-Only-blacklist-ARM-gcc-4.8.0-and-4.8.1.patch b/cirros-testvm/src-cirros/buildroot-2015.05/package/liburcu/0001-Only-blacklist-ARM-gcc-4.8.0-and-4.8.1.patch
new file mode 100644 (file)
index 0000000..585abc0
--- /dev/null
+++ b/cirros-testvm/src-cirros/buildroot-2015.05/package/liburcu/0001-Only-blacklist-ARM-gcc-4.8.0-and-4.8.1.patch
@@ -0,0 +1,40 @@
+From 54d8fe7ae40902d6d38e670f4024092f53c14e1f Mon Sep 17 00:00:00 2001
+From: Samuel Martin <s.martin49@gmail.com>
+Date: Sat, 8 Mar 2014 13:19:14 +0100
+Subject: [PATCH] Only blacklist ARM gcc 4.8.0 and 4.8.1
+
+Since many ARM toolchain providers include the bug fix for PR58854 in
+their latest releases based on gcc-4.8.2, then only blacklist gcc 4.8.0
+and 4.8.1.
+
+Signed-off-by: Samuel Martin <s.martin49@gmail.com>
+---
+ urcu/compiler.h | 9 ++++++++-
+ 1 file changed, 8 insertions(+), 1 deletion(-)
+
+diff --git a/urcu/compiler.h b/urcu/compiler.h
+index 1e30903..56115f1 100644
+--- a/urcu/compiler.h
++++ b/urcu/compiler.h
+@@ -118,10 +118,17 @@
+                               + __GNUC_PATCHLEVEL__)
+ 
+ /*
++ * Official gcc releases from 4.8.0 to 4.8.2 have the following bug,
++ * however, many arm toolchain providers have the included the fix for
++ * their latest 4.8.2 releases.
++ * So, we only blacklist gcc 4.8.0 and 4.8.1.
++ * Unfortunately, this bug is not easy to test, so we rely on the
++ * knowledge of the user on its compiler.
++ *
+  * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854
+  */
+ # ifdef __ARMEL__
+-#  if URCU_GCC_VERSION >= 40800 && URCU_GCC_VERSION <= 40802
++#  if URCU_GCC_VERSION >= 40800 && URCU_GCC_VERSION <= 40801
+ #   error Your gcc version produces clobbered frame accesses
+ #  endif
+ # endif
+-- 
+1.9.0
+