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d008477824
Make non-exception "software" panics such as stack overflow and assert failure save a panic log. Log the panic type in r4, and misc. panic data in r5 so that panic reasons can be distinguished. BUG=chrome-os-partner:36744 TEST=Manual on samus_pd. Run 'crash divzero' then 'panicinfo' after reboot. Verify that panic info is printed with "r4 :dead6660". Trigger stack overflow, verify that panic info is printed with "r4 :dead6661". BRANCH=Samus Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Change-Id: I5f7a8eb0a5c2ac5799d29bb241deb24fabf38f68 Reviewed-on: https://chromium-review.googlesource.com/249912 Tested-by: Alec Berg <alecaberg@chromium.org> Reviewed-by: Alec Berg <alecaberg@chromium.org>
24 lines
743 B
C
24 lines
743 B
C
/* Copyright (c) 2015 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Software panic constants. This file must be parsable by the assembler.
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*/
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#ifndef __CROS_EC_SOFTWARE_PANIC_H
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#define __CROS_EC_SOFTWARE_PANIC_H
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/* Holds software panic reason PANIC_SW_* */
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#define SOFTWARE_PANIC_REASON_REG r4
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#define SOFTWARE_PANIC_INFO_REG r5
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#define PANIC_SW_BASE 0xDEAD6660
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/* Software panic reasons */
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#define PANIC_SW_DIV_ZERO (PANIC_SW_BASE + 0)
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#define PANIC_SW_STACK_OVERFLOW (PANIC_SW_BASE + 1)
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#define PANIC_SW_ASSERT (PANIC_SW_BASE + 3)
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#define PANIC_SW_WATCHDOG (PANIC_SW_BASE + 4)
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#endif /* __CROS_EC_SOFTWARE_PANIC_H */
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