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From: Jason Wessel on 12 Feb 2010 17:40
The new debug core api requires all architectures that use to debug
core to implement a function to set the program counter.

Signed-off-by: Jason Wessel <jason.wessel(a)windriver.com>
Acked-by: David S. Miller <davem(a)davemloft.net>
---
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..539243b 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 = ip;
+ regs->npc = regs->pc + 4;
+}
+
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..9bf387b 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 = ip;
+ regs->tnpc = regs->tpc + 4;
+}
+
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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Prev: [PATCH 28/28] debug_core: Turn off tracing while in the debugger
Next: [PATCH 26/28] kdb,panic,debug_core: Allow the debug core to receive a panic before smp_send_stop()