From 9be36fb8cb5bcdab5bbbc7a36388dc9a3d1cc397 Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 26 Mar 2014 18:59:08 +0000 Subject: Make x86_64 fegetenv preserve exception mask (bug 16198). Bug 16198 is x86_64 fegetenv wrongly masking exceptions for which traps are enabled, because that's a side-effect of the fnstenv instruction. This patch fixes it to use fldenv immediately after fnstenv, like the i386 version. Tested x86_64 and x86. [BZ #16198] * sysdeps/x86_64/fpu/fegetenv.c (fegetenv): Use fldenv after fnstenv. * math/test-fenv-preserve.c: New file. * math/Makefile (tests): Add test-fenv-preserve. --- ChangeLog | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'ChangeLog') diff --git a/ChangeLog b/ChangeLog index c3d2ada600..20af1be500 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,11 @@ +2014-03-26 Joseph Myers + + [BZ #16198] + * sysdeps/x86_64/fpu/fegetenv.c (fegetenv): Use fldenv after + fnstenv. + * math/test-fenv-preserve.c: New file. + * math/Makefile (tests): Add test-fenv-preserve. + 2014-03-26 Will Newton * benchtests/bench-strtod.c (TIMEOUT): Define to 10. -- cgit 1.4.1