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Subject[PATCH] samples/kprobes: Add s390 case in kprobe example module
Date
Add info prints in sample kprobe handlers for S/390

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
---
samples/kprobes/kprobe_example.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
index 88b3e2d227ae..67de3b774bc9 100644
--- a/samples/kprobes/kprobe_example.c
+++ b/samples/kprobes/kprobe_example.c
@@ -47,6 +47,10 @@ static int handler_pre(struct kprobe *p, struct pt_regs *regs)
" pstate = 0x%lx\n",
p->symbol_name, p->addr, (long)regs->pc, (long)regs->pstate);
#endif
+#ifdef CONFIG_S390
+ pr_info("<%s> pre_handler: p->addr, 0x%p, ip = 0x%lx, flags = 0x%lx\n",
+ p->symbol_name, p->addr, regs->psw.addr, regs->flags);
+#endif

/* A dump_stack() here will give a stack backtrace */
return 0;
@@ -76,6 +80,10 @@ static void handler_post(struct kprobe *p, struct pt_regs *regs,
pr_info("<%s> post_handler: p->addr = 0x%p, pstate = 0x%lx\n",
p->symbol_name, p->addr, (long)regs->pstate);
#endif
+#ifdef CONFIG_S390
+ pr_info("<%s> pre_handler: p->addr, 0x%p, flags = 0x%lx\n",
+ p->symbol_name, p->addr, regs->flags);
+#endif
}

/*
--
2.13.5
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