From: Michael Ellerman <mpe@ellerman.id.au>
Date: Fri, 12 Oct 2018 02:58:52 +0000 (+1100)
Subject: powerpc/xmon: Show the stack protector canary in xmon
X-Git-Tag: v4.20-rc1~97^2~97
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=50530f5eac0c023cfc313d7ed342d4f1731becdb;p=linux.git

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>
---

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");