package/liburcu/0001-Only-blacklist-ARM-gcc-4.8.0-and-4.8.1.patch

   1 From 54d8fe7ae40902d6d38e670f4024092f53c14e1f Mon Sep 17 00:00:00 2001
   2 From: Samuel Martin <s.martin49@gmail.com>
   3 Date: Sat, 8 Mar 2014 13:19:14 +0100
   4 Subject: [PATCH] Only blacklist ARM gcc 4.8.0 and 4.8.1
   5
   6 Since many ARM toolchain providers include the bug fix for PR58854 in
   7 their latest releases based on gcc-4.8.2, then only blacklist gcc 4.8.0
   8 and 4.8.1.
   9
  10 Signed-off-by: Samuel Martin <s.martin49@gmail.com>
  11 ---
  12  urcu/compiler.h | 9 ++++++++-
  13  1 file changed, 8 insertions(+), 1 deletion(-)
  14
  15 diff --git a/urcu/compiler.h b/urcu/compiler.h
  16 index 1e30903..56115f1 100644
  17 --- a/urcu/compiler.h
  18 +++ b/urcu/compiler.h
  19 @@ -118,10 +118,17 @@
  20                                 + __GNUC_PATCHLEVEL__)
  21
  22  /*
  23 + * Official gcc releases from 4.8.0 to 4.8.2 have the following bug,
  24 + * however, many arm toolchain providers have the included the fix for
  25 + * their latest 4.8.2 releases.
  26 + * So, we only blacklist gcc 4.8.0 and 4.8.1.
  27 + * Unfortunately, this bug is not easy to test, so we rely on the
  28 + * knowledge of the user on its compiler.
  29 + *
  30   * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854
  31   */
  32  # ifdef __ARMEL__
  33 -#  if URCU_GCC_VERSION >= 40800 && URCU_GCC_VERSION <= 40802
  34 +#  if URCU_GCC_VERSION >= 40800 && URCU_GCC_VERSION <= 40801
  35  #   error Your gcc version produces clobbered frame accesses
  36  #  endif
  37  # endif
  38 --
  39 1.9.0
  40