Note that PT_GETREGS supplies SSTATUS for FreeBSD/riscv.

  This permits reading the value of the SSTATUS CSR returned by ptrace()
for live FreeBSD/riscv processes.

	* riscv-fbsd-nat.c (getregs_supplies): Return true for
	RISCV_CSR_SSTATUS_REGNUM.
---
 gdb/ChangeLog        | 5 +++++
 gdb/riscv-fbsd-nat.c | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)
  

* John Baldwin <jhb@FreeBSD.org> [2018-11-05 13:57:23 -0800]:

> This permits reading the value of the SSTATUS CSR returned by ptrace()
> for live FreeBSD/riscv processes.
> 
> 	* riscv-fbsd-nat.c (getregs_supplies): Return true for
> 	RISCV_CSR_SSTATUS_REGNUM.

Looks good.  Thanks,

Andrew

> ---
>  gdb/ChangeLog        | 5 +++++
>  gdb/riscv-fbsd-nat.c | 3 ++-
>  2 files changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/gdb/ChangeLog b/gdb/ChangeLog
> index bc77fe85c7..b78d58625e 100644
> --- a/gdb/ChangeLog
> +++ b/gdb/ChangeLog
> @@ -1,3 +1,8 @@
> +2018-11-05  John Baldwin  <jhb@FreeBSD.org>
> +
> +	* riscv-fbsd-nat.c (getregs_supplies): Return true for
> +	RISCV_CSR_SSTATUS_REGNUM.
> +
>  2018-11-04  Tom Tromey  <tom@tromey.com>
>  
>  	* varobj.c (install_default_visualizer): Update.
> diff --git a/gdb/riscv-fbsd-nat.c b/gdb/riscv-fbsd-nat.c
> index ad4ea1e0ad..e66f491284 100644
> --- a/gdb/riscv-fbsd-nat.c
> +++ b/gdb/riscv-fbsd-nat.c
> @@ -42,7 +42,8 @@ static riscv_fbsd_nat_target the_riscv_fbsd_nat_target;
>  static bool
>  getregs_supplies (struct gdbarch *gdbarch, int regnum)
>  {
> -  return (regnum >= RISCV_RA_REGNUM && regnum <= RISCV_PC_REGNUM);
> +  return ((regnum >= RISCV_RA_REGNUM && regnum <= RISCV_PC_REGNUM)
> +	  || regnum == RISCV_CSR_SSTATUS_REGNUM);
>  }
>  
>  /* Determine if PT_GETFPREGS fetches REGNUM.  */
> -- 
> 2.18.0
>