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Posted to commits@trafficserver.apache.org by jp...@apache.org on 2013/03/21 18:36:20 UTC
git commit: TS-1746: disable 128bit compare and swap
Updated Branches:
refs/heads/master 57ffdf5fc -> bd8fd4fbb
TS-1746: disable 128bit compare and swap
Disable the use of 128bit compare and swap that was introduced in
TS-1742. That change was causing crashes in the freelist.
Project: http://git-wip-us.apache.org/repos/asf/trafficserver/repo
Commit: http://git-wip-us.apache.org/repos/asf/trafficserver/commit/bd8fd4fb
Tree: http://git-wip-us.apache.org/repos/asf/trafficserver/tree/bd8fd4fb
Diff: http://git-wip-us.apache.org/repos/asf/trafficserver/diff/bd8fd4fb
Branch: refs/heads/master
Commit: bd8fd4fbb5ee4026f107365bcab6d546fc855f83
Parents: 57ffdf5
Author: James Peach <jp...@apache.org>
Authored: Thu Mar 21 10:34:07 2013 -0700
Committer: James Peach <jp...@apache.org>
Committed: Thu Mar 21 10:34:07 2013 -0700
----------------------------------------------------------------------
configure.ac | 52 +++++++++++++++++++++++++++-------------------------
1 files changed, 27 insertions(+), 25 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/trafficserver/blob/bd8fd4fb/configure.ac
----------------------------------------------------------------------
diff --git a/configure.ac b/configure.ac
index 652f327..19d2a39 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1108,31 +1108,33 @@ AC_SUBST(need_union_semun)
AC_MSG_CHECKING(for 128bit CAS support)
AC_LANG_PUSH([C++])
-TS_TRY_COMPILE_NO_WARNING([],[
- __int128_t x = 0;
- __sync_bool_compare_and_swap(&x,0,10);
- ], [
- AC_MSG_RESULT(yes)
- has_128bit_cas=1
- ], [
- dnl If 128bit CAS fails, try again with the -mcx16 option. GCC needs this;
- dnl clang doesn't; icc is unknown but presumed sane.
- __saved_CXXFLAGS="${CXXFLAGS}"
- TS_ADDTO(CXXFLAGS, [-mcx16])
- TS_TRY_COMPILE_NO_WARNING([],[
- __int128_t x = 0;
- __sync_bool_compare_and_swap(&x,0,10);
- ], [
- AC_MSG_RESULT(yes)
- has_128bit_cas=1
- dnl Keep CFLAGS and CXXFLAGS in sync.
- TS_ADDTO(CFLAGS, [-mcx16])
- ], [
- AC_MSG_RESULT(no)
- has_128bit_cas=0
- CXXFLAGS="${__saved_CXXFLAGS}"
- ])
-])
+dnl TS_TRY_COMPILE_NO_WARNING([],[
+dnl __int128_t x = 0;
+dnl __sync_bool_compare_and_swap(&x,0,10);
+dnl ], [
+dnl AC_MSG_RESULT(yes)
+dnl has_128bit_cas=1
+dnl ], [
+dnl dnl If 128bit CAS fails, try again with the -mcx16 option. GCC needs this;
+dnl dnl clang doesn't; icc is unknown but presumed sane.
+dnl __saved_CXXFLAGS="${CXXFLAGS}"
+dnl TS_ADDTO(CXXFLAGS, [-mcx16])
+dnl TS_TRY_COMPILE_NO_WARNING([],[
+dnl __int128_t x = 0;
+dnl __sync_bool_compare_and_swap(&x,0,10);
+dnl ], [
+dnl AC_MSG_RESULT(yes)
+dnl has_128bit_cas=1
+dnl dnl Keep CFLAGS and CXXFLAGS in sync.
+dnl TS_ADDTO(CFLAGS, [-mcx16])
+dnl ], [
+dnl AC_MSG_RESULT(no)
+dnl has_128bit_cas=0
+dnl CXXFLAGS="${__saved_CXXFLAGS}"
+dnl ])
+dnl ])
+
+has_128bit_cas=0
AC_LANG_POP
AC_SUBST(has_128bit_cas)