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https://github.com/zephyrproject-rtos/zephyr
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ac60583b76
The name of the device is SYSTICK. The device name should be part of the file name, like all other timer drivers we support. The name 'cortex_m_timer' said nothing about which device the driver is for, since it's way too generic: it could be for any timer present on any Cortex-M board. Change-Id: I39b4f79c32516ec9aff82c55c0ca639fad1b52bb Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
54 lines
2.0 KiB
ArmAsm
54 lines
2.0 KiB
ArmAsm
/* ARM Cortex-M systick handler stub for GDB debugging */
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/*
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* Copyright (c) 2014-2015 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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DESCRIPTION
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GDB stub needed before the real systick handler runs to be able to display the
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correct state of the thread that was interrupted.
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*/
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#define _ASMLANGUAGE
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#include <toolchain.h>
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#include <sections.h>
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#include <arch/cpu.h>
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_ASM_FILE_PROLOGUE
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GTEXT(_timer_int_handler)
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GTEXT(_real_timer_int_handler)
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SECTION_FUNC(TEXT, _timer_int_handler)
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_GDB_STUB_EXC_ENTRY
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b _real_timer_int_handler
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