From: Frank Ch. Eigler <fche@redhat.com>
Date: Mon Dec 6 12:06:06 2021 -0500
Subject: sys/sdt.h fp constraints cont'd, x86-64 edition
Git-commit: 1d3653936fc1fd13135a723a27e6c7e959793ad0
References: https://build.suse.de/request/show/263498
Signed-off-by: Tony Jones <tonyj@suse.de>

    sys/sdt.h fp constraints cont'd, x86-64 edition
    
    It appears that various versions of gcc continue to show signs of
    confusion at our newly offered asm-operand alternatives for floating
    point sdt.h marker parameters.
    
    e.g., https://bugzilla.redhat.com/show_bug.cgi?id=2028798
    
    We may need to restore previous constraints broadly, forcing the
    compiler to plop floating point parameters into integer storage.

diff --git a/includes/sys/sdt.h b/includes/sys/sdt.h
index 24d5e01c3..3e1f00b6c 100644
--- a/includes/sys/sdt.h
+++ b/includes/sys/sdt.h
@@ -101,7 +101,7 @@
 # if defined __powerpc__
 # define STAP_SDT_ARG_CONSTRAINT        nZr
 # elif defined __x86_64__
-# define STAP_SDT_ARG_CONSTRAINT norfxy
+# define STAP_SDT_ARG_CONSTRAINT norx
 # elif defined __aarch64__
 # define STAP_SDT_ARG_CONSTRAINT norw
 # elif defined __s390__ || defined __s390x__