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git://git.code.sf.net/p/openocd/code
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d8042fbb46
Replace the BSD-3-Clause boilerplate with the SPDX tag. Add the SPDX tag and the copyright to two makefiles that were added by TI with the other files in their respective folder. The SPDX tag on files *.c is incorrect, as it should use the C99 single line comment using '//'. But current checkpatch doesn't allow C99 comments, so keep using standard C comments, by now. Change-Id: I3ad1b2dbdb6054b74dcc26e394c9223ba0427caf Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com> Reviewed-on: https://review.openocd.org/c/openocd/+/7158 Tested-by: jenkins
97 lines
3.2 KiB
C
97 lines
3.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause */
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/******************************************************************************
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*
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* Copyright (C) 2012-2018 Texas Instruments Incorporated - http://www.ti.com/
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*
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******************************************************************************/
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#include <stdint.h>
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/* Entry point for the application. */
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extern int main();
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/* Reserve space for the system stack. */
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extern uint32_t __stack_top;
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typedef void(*pFunc)(void);
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/* Interrupt handler prototypes */
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void default_handler(void);
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void reset_handler(void);
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/*
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* The vector table. Note that the proper constructs must be placed on this to
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* ensure that it ends up at physical address 0x0000.0000 or at the start of
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* the program if located at a start address other than 0.
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*/
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void (* const intr_vectors[])(void) __attribute__((section(".intvecs"))) = {
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(pFunc)&__stack_top, /* The initial stack pointer */
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reset_handler, /* The reset handler */
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default_handler, /* The NMI handler */
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default_handler, /* The hard fault handler */
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default_handler, /* The MPU fault handler */
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default_handler, /* The bus fault handler */
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default_handler, /* The usage fault handler */
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0, /* Reserved */
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0, /* Reserved */
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0, /* Reserved */
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0, /* Reserved */
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default_handler, /* SVCall handler */
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default_handler, /* Debug monitor handler */
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0, /* Reserved */
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default_handler, /* The PendSV handler */
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default_handler /* The SysTick handler */
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};
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/*
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* The following are constructs created by the linker, indicating where
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* the "data" and "bss" segments reside in memory. The initializers for
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* the "data" segment resides immediately following the "text" segment.
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*/
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extern uint32_t __bss_start__;
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extern uint32_t __bss_end__;
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/*
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* This is the code that gets called when the processor first starts execution
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* following a reset event. Only the absolutely necessary set is performed,
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* after which the application supplied entry() routine is called. Any fancy
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* actions (such as making decisions based on the reset cause register, and
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* resetting the bits in that register) are left solely in the hands of the
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* application.
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*/
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__attribute__((section(".reset"))) __attribute__((naked))
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void reset_handler(void)
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{
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/* Set stack pointer */
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__asm(" MOVW.W r0, #0x1700\n"
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" MOVT.W r0, #0x0100\n"
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" mov sp, r0\n");
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/* Zero fill the bss segment. */
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__asm(" ldr r0, =__bss_start__\n"
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" ldr r1, =__bss_end__\n"
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" mov r2, #0\n"
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" .thumb_func\n"
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"zero_loop:\n"
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" cmp r0, r1\n"
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" it lt\n"
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" strlt r2, [r0], #4\n"
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" blt zero_loop");
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/* Call the application's entry point. */
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main();
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}
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/*
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* This is the code that gets called when the processor receives an unexpected
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* interrupt. This simply enters an infinite loop, preserving the system state
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* for examination by a debugger.
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*/
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void default_handler(void)
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{
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/* Enter an infinite loop. */
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while (1)
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;
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}
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