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From: John Baldwin <jhb@FreeBSD.org>
To: gdb-patches@sourceware.org
Subject: [PATCH] Note that PT_GETREGS supplies SSTATUS for FreeBSD/riscv.
Date: Mon, 05 Nov 2018 21:57:00 -0000	[thread overview]
Message-ID: <20181105215723.23683-1-jhb@FreeBSD.org> (raw)

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(-)

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


             reply	other threads:[~2018-11-05 21:57 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-05 21:57 John Baldwin [this message]
2018-11-05 22:35 ` Andrew Burgess

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