hurd: Fix restoring SSE state on signal

mach_port_mod_refs() needs to avoid using SSE&MMX for __sigreturn2 to be
able to use it without thrashing SSE&MMX.

diff --git a/sysdeps/mach/hurd/x86/Makefile b/sysdeps/mach/hurd/x86/Makefile
index 29371f6c9acd7a9e9a41ec2db6d67076479da323..27c4b06590ba05f447211beba9a02c23ce8c28db 100644 (file)
--- a/sysdeps/mach/hurd/x86/Makefile
+++ b/sysdeps/mach/hurd/x86/Makefile
@@ -14,3 +14,8 @@ endif
 ifeq ($(subdir),stdlib)
 gen-as-const-headers += ucontext_i.sym
 endif
+
+ifeq ($(subdir),mach)
+# Avoid SSE&MMX to avoid __sigreturn2 thrashing it
+CFLAGS-RPC_mach_port_mod_refs.c = -mno-sse -mno-mmx
+endif