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authorMichael Ellerman <mpe@ellerman.id.au>2018-10-12 04:58:52 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2018-10-13 13:21:25 +0200
commit50530f5eac0c023cfc313d7ed342d4f1731becdb (patch)
tree18e4121f061a50b3ce0257e3f54169a0fe3d4082 /arch
parentpowerpc: Use SWITCH_FRAME_SIZE for prom and rtas entry (diff)
downloadlinux-50530f5eac0c023cfc313d7ed342d4f1731becdb.tar.xz
linux-50530f5eac0c023cfc313d7ed342d4f1731becdb.zip
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/xmon/xmon.c3
1 files changed, 3 insertions, 0 deletions
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");