11787 Kernel needs to be built with retpolines
11788 Kernel needs to generally use RSB stuffing
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: John Levon <john.levon@joyent.com>

@@ -19,14 +19,13 @@
  * CDDL HEADER END
  */
 /*
  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
+ * Copyright 2019 Joyent, Inc.
  */
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"
-
 #include <sys/asm_linkage.h>
 #include <sys/asm_misc.h>
 #include <sys/regset.h>
 #include <sys/psw.h>
 

@@ -99,11 +98,12 @@
 #if defined(__amd64)
 
         .globl  gethrtimef
         ENTRY_NP(get_hrtime)
         FAST_INTR_PUSH
-        call    *gethrtimef(%rip)
+        movq    gethrtimef(%rip), %rax
+        INDIRECT_CALL_REG(rax)
         movq    %rax, %rdx
         shrq    $32, %rdx                       /* high 32-bit in %edx */
         FAST_INTR_POP
         FAST_INTR_RETURN
         SET_SIZE(get_hrtime)

@@ -125,11 +125,12 @@
         .globl  gethrestimef
         ENTRY_NP(get_hrestime)
         FAST_INTR_PUSH
         subq    $TIMESPEC_SIZE, %rsp
         movq    %rsp, %rdi
-        call    *gethrestimef(%rip)
+        movq    gethrestimef(%rip), %rax
+        INDIRECT_CALL_REG(rax)
         movl    (%rsp), %eax
         movl    CLONGSIZE(%rsp), %edx
         addq    $TIMESPEC_SIZE, %rsp
         FAST_INTR_POP
         FAST_INTR_RETURN