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From 208ea73d38c9c16cf983b6419f58050dbadcb6a9 Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Sun, 7 Jun 2015 22:43:49 +0300
Subject: [PATCH 2/2] xtensa: make sure ar_base is initialized
ar_base is uninitialized for cores w/o windowed registers as their
regmap doesn't have register 0x0100.
Check that ar_base is initialized and if not initialize it with a0_base.
gdb/
* xtensa-tdep.c (xtensa_derive_tdep): Make sure ar_base is
initialized.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
gdb/xtensa-tdep.c | 3 +++
1 file changed, 3 insertions(+)
--- a/gdb/xtensa-tdep.c
+++ b/gdb/xtensa-tdep.c
@@ -3174,6 +3174,9 @@
tdep->num_regs = n;
}
+ if (tdep->ar_base == -1)
+ tdep->ar_base = tdep->a0_base;
+
/* Number of pseudo registers. */
tdep->num_pseudo_regs = n - tdep->num_regs;
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