GNU C Library master sources branch master updated. glibc-2.23-169-g1a5d01e

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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=1a5d01e79e40485e2e78ceb25f124a5ee31415fc

commit 1a5d01e79e40485e2e78ceb25f124a5ee31415fc
Author: Khem Raj <raj.khem@gmail.com>
Date:   Sat Apr 2 21:55:25 2016 -0700

    When disabling SSE, make sure -fpmath is not set to use SSE either
    
    This fixes errors when we inject sse options through CFLAGS and now
    that we have -Werror turned on by default this warning turns into an
    error on x86:
    
    $ gcc -m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -x c /dev/null -S -mno-sse -mno-mmx
    /dev/null:1:0: warning: SSE instruction set disabled, using 387 arithmetics
    
    Where as:
    
    $ gcc -m32 -march=core2 -mtune=core2 -msse3 -mfpmath=sse -x c /dev/null -S -mno-sse -mno-mmx -mfpmath=387
    
    Generates no warnings.

diff --git a/ChangeLog b/ChangeLog
index e5f78c0..7c01a72 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2016-04-09  Khem Raj  <raj.khem@gmail.com>
+
+	[BZ #17950]
+	* sysdeps/i386/Makefile [$(subdir) == elf] (CFLAGS-.os):
+	Add -mfpmath=387.
+
 2016-04-09  Mike Frysinger  <vapier@gentoo.org>
 
 	* sysdeps/i386/configure.ac: Change == to = when calling test.
diff --git a/sysdeps/i386/Makefile b/sysdeps/i386/Makefile
index 168512f..6c91842 100644
--- a/sysdeps/i386/Makefile
+++ b/sysdeps/i386/Makefile
@@ -88,8 +88,9 @@ ifeq ($(subdir),elf)
 # Make sure no code in ld.so uses mm/xmm/ymm/zmm registers on i386 since
 # the first 3 mm/xmm/ymm/zmm registers are used to pass vector parameters
 # which must be preserved.
+# With SSE disabled, ensure -fpmath is not set to use sse either.
 CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
-		   -mno-sse -mno-mmx)
+		   -mno-sse -mno-mmx -mfpmath=387)
 
 tests-special += $(objpfx)tst-ld-sse-use.out
 $(objpfx)tst-ld-sse-use.out: ../sysdeps/i386/tst-ld-sse-use.sh $(objpfx)ld.so

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog             |    6 ++++++
 sysdeps/i386/Makefile |    3 ++-
 2 files changed, 8 insertions(+), 1 deletions(-)


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