linux-kernel - [PATCH 07/37] kgdb,sparc: Add in kgdb_arch_set

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Message-Id: <1261603190-5036-8-git-send-email-jason.wessel@windriver.com>
Date:	Wed, 23 Dec 2009 15:19:20 -0600
From:	Jason Wessel <jason.wessel@...driver.com>
To:	linux-kernel@...r.kernel.org
Cc:	kgdb-bugreport@...ts.sourceforge.net, kdb@....sgi.com,
	mingo@...e.hu, Jason Wessel <jason.wessel@...driver.com>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 07/37] kgdb,sparc: Add in kgdb_arch_set_pc for sparc

The new debug core api requires all architectures that use to debug
core to implement a function to set the program counter.

CC: "David S. Miller" <davem@...emloft.net>
Signed-off-by: Jason Wessel <jason.wessel@...driver.com>
---
 arch/sparc/kernel/kgdb_32.c |    6 ++++++
 arch/sparc/kernel/kgdb_64.c |    6 ++++++
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/arch/sparc/kernel/kgdb_32.c b/arch/sparc/kernel/kgdb_32.c
index 04df4ed..79bcba6 100644
--- a/arch/sparc/kernel/kgdb_32.c
+++ b/arch/sparc/kernel/kgdb_32.c
@@ -158,6 +158,12 @@ void kgdb_arch_exit(void)
 {
 }
 
+void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
+{
+       regs->pc = regs->npc;
+       regs->npc = ip;
+}
+
 struct kgdb_arch arch_kgdb_ops = {
 	/* Breakpoint instruction: ta 0x7d */
 	.gdb_bpt_instr		= { 0x91, 0xd0, 0x20, 0x7d },
diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c
index f5a0fd4..ebe9f0b 100644
--- a/arch/sparc/kernel/kgdb_64.c
+++ b/arch/sparc/kernel/kgdb_64.c
@@ -180,6 +180,12 @@ void kgdb_arch_exit(void)
 {
 }
 
+void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
+{
+	regs->tpc = regs->tnpc;
+	regs->tnpc = ip;
+}
+
 struct kgdb_arch arch_kgdb_ops = {
 	/* Breakpoint instruction: ta 0x72 */
 	.gdb_bpt_instr		= { 0x91, 0xd0, 0x20, 0x72 },
-- 
1.6.4.rc1

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