svn commit: r340027 - head/sys/riscv/riscv

[John Baldwin]

Author: jhb
Date: Thu Nov  1 22:13:22 2018
New Revision: 340027
URL: https://svnweb.freebsd.org/changeset/base/340027

Log:
  Don't allow debuggers to modify SSTATUS, only to read it.
  
  Reviewed by:	markj
  Sponsored by:	DARPA
  Differential Revision:	https://reviews.freebsd.org/D17771

Modified:
  head/sys/riscv/riscv/machdep.c

Modified: head/sys/riscv/riscv/machdep.c
==============================================================================
--- head/sys/riscv/riscv/machdep.c	Thu Nov  1 22:13:18 2018	(r340026)
+++ head/sys/riscv/riscv/machdep.c	Thu Nov  1 22:13:22 2018	(r340027)
@@ -178,7 +178,6 @@ set_regs(struct thread *td, struct reg *regs)
 
 	frame = td->td_frame;
 	frame->tf_sepc = regs->sepc;
-	frame->tf_sstatus = regs->sstatus;
 	frame->tf_ra = regs->ra;
 	frame->tf_sp = regs->sp;
 	frame->tf_gp = regs->gp;