- change ABI for user trap handler for sun4v (eventually will sync sparc64 no

hardware set up to test at the moment)

Approved by: scottl (standing in for mentor rwatson)

lib/libc/sparc64/sys/Makefile.inc

@@ -11,6 +11,9 @@ SRCS+=	__sparc_sigtramp_setup.c \
 	sigcode.S
 
 CFLAGS+= -I${.CURDIR}/sparc64/fpu
+.if ${MACHINE} == "sun4v"
+CFLAGS+= -DSUN4V
+.endif
 
 MDASM+=	brk.S cerror.S exect.S pipe.S ptrace.S sbrk.S setlogin.S sigaction.S
 

lib/libc/sparc64/sys/__sparc_utrap_gen.S

@@ -38,6 +38,10 @@ __FBSDID("$FreeBSD$");
 #include "assym.s"
 
 ENTRY(__sparc_utrap_gen)
+#ifdef SUN4V
+	save
+	ta	%xcc, ST_FPEMU_CONTEXT
+#endif	
 	sub	%sp, UF_SIZEOF, %sp
 
 	stx	%o0, [%sp + SPOFF + CCFSZ + UF_TYPE]