/******************************************************************************
*
* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
*  Redistributions of source code must retain the above copyright
*  notice, this list of conditions and the following disclaimer.
*
*  Redistributions in binary form must reproduce the above copyright
*  notice, this list of conditions and the following disclaimer in the
*  documentation and/or other materials provided with the
*  distribution.
*
*  Neither the name of Texas Instruments Incorporated nor the names of
*  its contributors may be used to endorse or promote products derived
*  from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
 *****************************************************************************/


MEMORY
{
    FLASH (RX) : ORIGIN = 0x00000000, LENGTH = 0x00100000
    SRAM (WX)  : ORIGIN = 0x20000000, LENGTH = 0x00040000
}

REGION_ALIAS("REGION_TEXT", FLASH);
REGION_ALIAS("REGION_BSS", SRAM);
REGION_ALIAS("REGION_DATA", SRAM);
REGION_ALIAS("REGION_STACK", SRAM);
REGION_ALIAS("REGION_HEAP", SRAM);
REGION_ALIAS("REGION_ARM_EXIDX", FLASH);
REGION_ALIAS("REGION_ARM_EXTAB", FLASH);

SECTIONS {

    /* section for the interrupt vector area                                 */
    PROVIDE (_intvecs_base_address =
        DEFINED(_intvecs_base_address) ? _intvecs_base_address : 0x0);

    .intvecs (_intvecs_base_address) : AT (_intvecs_base_address) {
        KEEP (*(.intvecs))
    } > REGION_TEXT

    PROVIDE (_vtable_base_address =
        DEFINED(_vtable_base_address) ? _vtable_base_address : 0x20000000);

    .vtable (_vtable_base_address) : AT (_vtable_base_address) {
        KEEP (*(.vtable))
    } > REGION_DATA

    .text : {
        CREATE_OBJECT_SYMBOLS
        KEEP (*(.text))
        *(.text.*)
        . = ALIGN(0x4);
        KEEP (*(.ctors))
        . = ALIGN(0x4);
        KEEP (*(.dtors))
        . = ALIGN(0x4);
        __init_array_start = .;
        KEEP (*(.init_array*))
        __init_array_end = .;
        KEEP (*(.init))
        KEEP (*(.fini*))

        /* section information for finsh shell */
        . = ALIGN(4);
        __fsymtab_start = .;
        KEEP(*(FSymTab))
        __fsymtab_end = .;

        . = ALIGN(4);
        __vsymtab_start = .;
        KEEP(*(VSymTab))
        __vsymtab_end = .;

        /* section information for initial. */
        . = ALIGN(4);
        __rt_init_start = .;
        KEEP(*(SORT(.rti_fn*)))
        __rt_init_end = .;

        . = ALIGN(4);
    } > REGION_TEXT AT> REGION_TEXT

    .rodata : {
        *(.rodata)
        *(.rodata.*)
    } > REGION_TEXT AT> REGION_TEXT

    .ARM.exidx : {
        __exidx_start = .;
        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
        __exidx_end = .;
    } > REGION_ARM_EXIDX AT> REGION_ARM_EXIDX

    .ARM.extab : {
        KEEP (*(.ARM.extab* .gnu.linkonce.armextab.*))
    } > REGION_ARM_EXTAB AT> REGION_ARM_EXTAB

    __etext = .;

    .data : {
        __data_load__ = LOADADDR (.data);
        __data_start__ = .;
        KEEP (*(.data))
        KEEP (*(.data*))
        . = ALIGN (4);
        __data_end__ = .;
    } > REGION_DATA AT> REGION_TEXT

    .bss : {
        __bss_start__ = .;
        *(.shbss)
        KEEP (*(.bss))
        *(.bss.*)
        *(COMMON)
        . = ALIGN (4);
        __bss_end__ = .;
    } > REGION_BSS AT> REGION_BSS

    .heap : {
        __heap_start__ = .;
        end = __heap_start__;
        _end = end;
        __end = end;
        KEEP (*(.heap))
        __heap_end__ = .;
        __HeapLimit = __heap_end__;
    } > REGION_HEAP AT> REGION_HEAP

    .stack (NOLOAD) : ALIGN(0x8) {
        _stack = .;
        KEEP(*(.stack))
    } > REGION_STACK AT> REGION_STACK

    __StackTop = ORIGIN(REGION_STACK) + LENGTH(REGION_STACK);
    PROVIDE(__stack = __StackTop);

    __end = .;
}