boot.link

/********************************************************************************************************
 * @file     boot.link 
 *
 * @brief    for TLSR chips
 *
 * @author   public@telink-semi.com;
 * @date     Sep. 30, 2010
 *
 * @attention
 *
 *  Copyright (C) 2019-2020 Telink Semiconductor (Shanghai) Co., Ltd.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.   
 *           
 *******************************************************************************************************/

/* to tell the linker the program begin from __start label in cstartup.s, thus do not treat it as a unused symbol */
ENTRY(__start)

SECTIONS
{
    . = 0x0;
        .vectors :
        {
        *(.vectors)
        *(.vectors.*)	/* MUST as follows, when compile with -ffunction-sections -fdata-sections, session name may changed */
        }
        .ram_code :
        {
        *(.ram_code)
        *(.ram_code.*)
        }
        
    . = (((. + 3) / 4)*4);
        PROVIDE(_rstored_ = . );
        
        
    PROVIDE(_ramcode_size_ = . );
    PROVIDE(_ramcode_size_div_16_ = (. + 15 ) / 16);
    PROVIDE(_ramcode_size_div_256_ = (. + 255) / 256);
    PROVIDE(_ramcode_size_div_16_align_256_ = ( (. + 255) / 256) * 16);
    PROVIDE(_ramcode_size_align_256_ = ( _ramcode_size_div_16_align_256_)* 16);

    . = 0x8000; 	
        .text :
        {
        *(.text)
        *(.text.*)
        }
        .rodata :
        {
        *(.rodata)
        *(.rodata.*)
        }

    . = (((. + 3) / 4)*4);
        PROVIDE(_dstored_ = .);
        PROVIDE(_code_size_ = .);

 	. = (0x840000 + (_rstored_));
        .retention_data :
          AT ( _rstored_ )
        {
        . = (((. + 3) / 4)*4);
        PROVIDE(_retention_data_start_ = . );
        *(.retention_data)
        *(.retention_data.*)
        PROVIDE(_retention_data_end_ = . );
        }        

	PROVIDE(_retention_data_size_div_256_ = (. - 0x840000 + 255) / 256);

	. = 0x840900 + _retention_data_size_div_256_ * 0x100;
        .data :
          AT ( _dstored_ )
         {
    . = (((. + 3) / 4)*4);
         PROVIDE(_start_data_ = . );
         *(.data);
         *(.data.*);
    . = (((. + 3) / 4)*4);
         PROVIDE(_end_data_ = . );
         }

        .bss :
        {
	. = (((. + 3) / 4)*4);
	PROVIDE(_start_bss_ = .);
        *(.sbss)
        *(.sbss.*)
        *(.bss)
        *(.bss.*)
        }
    PROVIDE(_end_bss_ = .);
    /* data in ram but no need to clean in .s*/
        .data_no_init (NOLOAD) :
        {
    . = (((. + 3) / 4)*4);
            *(.data_no_init)
            *(.data_no_init.*)
        }
    PROVIDE(_bin_size_ = _code_size_ + _end_data_ - _start_data_);
    PROVIDE(_ictag_start_ = 0x840000 + (_retention_data_size_div_256_) * 0x100);
    PROVIDE(_ictag_end_ = 0x840000 + (_retention_data_size_div_256_ + 1) * 0x100);
    
    PROVIDE(_ram_use_size_div_16_ = (_retention_data_end_ - 0x840000  + 15 ) / 16);
    PROVIDE(_ram_use_size_align_256__ = ((_retention_data_end_ - 0x840000  + 255 ) / 256) * 256);
}