[PATCH] powerpc/xmon: Show the stack protector canary in xmon

This is helpful for debugging stack protector crashes.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 arch/powerpc/xmon/xmon.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index c70d17c9a6ba..d139741f26fe 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c

@@ -2418,6 +2418,9 @@ static void dump_one_paca(int cpu)
 	DUMP(p, __current, "%-*px");
 	DUMP(p, kstack, "%#-*llx");
 	printf(" %-*s = 0x%016llx\n", 25, "kstack_base", p->kstack & ~(THREAD_SIZE - 1));
+#ifdef CONFIG_STACKPROTECTOR
+	DUMP(p, canary, "%#-*lx");
+#endif
 	DUMP(p, saved_r1, "%#-*llx");
 	DUMP(p, trap_save, "%#-*x");
 	DUMP(p, irq_soft_mask, "%#-*x");

-- 
2.17.1

On Mon, 2018-10-15 at 02:23:39 UTC, Michael Ellerman wrote:

This is helpful for debugging stack protector crashes.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/50530f5eac0c023cfc313d7ed342d4

cheers