/**
 * Copyright (c) 2010 Anup Patel.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * @file firmware.ld
 * @author Anup Patel (anup@brainfault.org)
 * @brief Linker script for Basic Firmware
 */

OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH("arm")
ENTRY(_start_vect)


SECTIONS {
/* . = TEXT_START; */
  . = 0x41000000;

 PROVIDE(_code_start = .);
 PROVIDE(_reloc_region_start = .);

/*----------------------------------------------------------------------------*/
/*                                                                            */
/*                                    Code                                    */
/*                                                                            */
/*----------------------------------------------------------------------------*/

  /* remaining .text (ie no section given) */
  .text : {
    *(.expvect)
    *(.text)           /* .text sections (code) */
    *(.text*)          /* .text* sections (code) */
    *(.glue_7)         /* glue arm to thumb code */
    *(.glue_7t)        /* glue thumb to arm code */
    *(.eh_frame)

    KEEP (*(.init))
    KEEP (*(.fini))

    . = ALIGN(16);
    _etext = .;        /* define a global symbols at end of code */
    _exit = .;
  }
  /*
   * code and const of the operating system (Trampoline).
   * this section is not accessible from an untrusted process
   */

  /* --- code of OS --- */
  ostext : {
/*    *(.SC_handler)*/
/*    *(.EI_handler)*/
    *(.osCode)
    *(.osApiCode)  /* API functions */
    *(.appCommonCode)
    . = ALIGN(16);
  }

  /* --- const of OS --- */
  osconst : {
    *(.osConst)
    *(.osApiConst) /* API constants */
    . = ALIGN(16);
  }

  /*
   * code and const of the processes of the applications ]
   */
  apptext : {
    __PROGCONST_SECTION_START = .;
    __SEG_START_APP_CODE_CONST_RGN = .;
    /* --- Sections for application code --- */

    /* --- Sections for code of tasks and ISR --- */%
    foreach proc in PROCESSES do
%
      *(.% !proc::KIND %_% !proc::NAME %Code)
%
    end foreach
    foreach isr in ISRS1 do
%
      *(.ISR_% !isr::NAME %Code)
%
    end foreach
%  . = ALIGN(16);
  }
  
  appconst : {
    /* --- Sections for application const --- */
    *(.rodata)     /* litteral strings (constants, strings, etc.) */
    *(.rodata*)    /* litteral strings (constants, strings, etc.) */
%
    foreach app in APPLICATIONS do
      for DATA_SIZE in "32BIT","16BIT","8BIT","BOOLEAN","UNSPECIFIED" do
        for SECTION_KIND in "_CONST_","_CALIB_","_CARTO_","_CONFIG_DATA_" do
%      *(.OS_APP_% !app::NAME %_SEC% !SECTION_KIND !DATA_SIZE %)
%
        end for
      end for
    end foreach
%  . = ALIGN(16);
  }

  /*
   * Sections for const of tasks and ISR
   */
  procconst : {
%
    foreach proc in PROCESSES do
      for DATA_SIZE in "32BIT","16BIT","8BIT","BOOLEAN","UNSPECIFIED" do
        for SECTION_KIND in "_CONST_","_CALIB_","_CARTO_","_CONFIG_DATA_" do
%      *(.% !proc::KIND %_% !proc::NAME %_SEC% !SECTION_KIND !DATA_SIZE %)
%
        end for
      end for
    end foreach
%
    . = ALIGN(16);
    __SEG_STOP_APP_CODE_CONST_RGN = . - 1;
    __PROGCONST_SECTION_STOP = . - 1;
  }

  /* Initialized data sections goes into RAM, load LMA copy after code */
  _sidata = .;

  .data : AT ( _sidata ) {
    _sdata = .;        /* create a global symbol at data start */
    *(.data)           /* .data sections */
    *(.data*)          /* .data* sections */
    *(.osVar)
%
foreach proc in PROCESSES do
%
/* Initialized variables section of % !proc::KIND % % !proc::NAME % */
%
  for DATA_SIZE in "32BIT","16BIT","8BIT","BOOLEAN","UNSPECIFIED" do
    for SECTION_KIND in "_POWER_ON_INIT_" do
%    *(.% !proc::KIND %_% !proc::NAME %_SEC_VAR% !SECTION_KIND !DATA_SIZE %)
%
    end for
  end for
end foreach

foreach app in APPLICATIONS do
%/* Initialized variables section of OS_APP % !app::NAME % */
%
  for DATA_SIZE in "32BIT","16BIT","8BIT","BOOLEAN","UNSPECIFIED" do
    for SECTION_KIND in "_POWER_ON_INIT_" do
%    *(.OS_APP_% !app::NAME %_SEC_VAR% !SECTION_KIND !DATA_SIZE %)
%
    end for
  end for
end foreach
%    
    . = ALIGN(16);
    _edata = .;
  }

  /*
   * private data of processes
   */
   
%

foreach proc in PROCESSES do
%  .% !proc::KIND %_% !proc::NAME %_SEC_VAR : {
    . = ALIGN(__SEG_ALIGN_% !proc::KIND %_% !proc::NAME %_VAR_RGN);
    __SEG_START_% !proc::KIND %_% !proc::NAME %_VAR_RGN = .;
  /* --- Initialized variables section of % !proc::KIND % % !proc::NAME % */
%
  for DATA_SIZE in "32BIT","16BIT","8BIT","BOOLEAN","UNSPECIFIED" do
    for SECTION_KIND in "_NOINIT_","_FAST_","_" do
%    *(.% !proc::KIND %_% !proc::NAME %_SEC_VAR% !SECTION_KIND !DATA_SIZE %)
%
    end for
  end for
%     __SEG_END_% !proc::KIND %_% !proc::NAME %_VAR_RGN = .;
     __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 4K ? 4K : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
     __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 1K ? 1K : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
     __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 512 ? 512 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
     __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 256 ? 256 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
     __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 128 ? 128 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
     __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 64 ? 64 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
     __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 32 ? 32 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
     __SEG_ALIGN_% !proc::KIND %_% !proc::NAME %_VAR_RGN = __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
  }
%
end foreach
%
   
/*----------------------------------------------------------------------------*/
/*                                                                            */
/*                                Stack of processes                          */
/*                                                                            */
/*----------------------------------------------------------------------------*/

%
foreach proc in PROCESSES do %
  /* --- Section of stack of % !proc::KIND % % !proc::NAME %  */
  .% !proc::KIND %_% !proc::NAME %_SEC_STACK : {
    . = ALIGN(__SEG_ALIGN_% !proc::KIND %_% !proc::NAME %_STACK_RGN);
    __SEG_START_% !proc::KIND %_% !proc::NAME %_STACK_RGN = .;
    *(.% !proc::KIND %_% !proc::NAME %Stack)
    . = ALIGN(4);
    __SEG_END_% !proc::KIND %_% !proc::NAME %_STACK_RGN = .;
    __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_STACK_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_STACK_RGN) < 4K ? 4K : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN;
    __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_STACK_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_STACK_RGN) < 1K ? 1K : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN;
    __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_STACK_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_STACK_RGN) < 512 ? 512 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN;
    __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_STACK_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_STACK_RGN) < 256 ? 256 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN;
    __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_STACK_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_STACK_RGN) < 128 ? 128 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN;
    __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_STACK_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_STACK_RGN) < 64 ? 64 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN;
    __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN = (__SEG_END_% !proc::KIND %_% !proc::NAME %_STACK_RGN - __SEG_START_% !proc::KIND %_% !proc::NAME %_STACK_RGN) < 32 ? 32 : __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN;
    __SEG_ALIGN_% !proc::KIND %_% !proc::NAME %_STACK_RGN = __SEG_SIZE_% !proc::KIND %_% !proc::NAME %_STACK_RGN;
  }
%
end foreach
%

/*----------------------------------------------------------------------------*/
/*                                                                            */
/*                                OS application data                         */
/*                                                                            */
/*----------------------------------------------------------------------------*/

  /*
   * os application data
   */
   appvars : {
%
foreach app in APPLICATIONS do
%    . = ALIGN(__SEG_ALIGN_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN)
    __SEG_START_OS_APP_% !app::NAME %_VAR_RGN = .;
  /* --- Initialized variables section of OS_APP % !app::NAME % */
%
  for DATA_SIZE in "32BIT","16BIT","8BIT","BOOLEAN","UNSPECIFIED" do
    for SECTION_KIND in "_NOINIT_","_FAST_","_" do
%    *(.OS_APP_% !app::NAME %_SEC_VAR% !SECTION_KIND !DATA_SIZE %)
%
    end for
  end for
%    . = ALIGN(4);
    __SEG_END_OS_APP_% !app::NAME %_VAR_RGN = .;
    __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 4K ? 4K : __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
    __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 1K ? 1K : __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
    __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 512 ? 512 : __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
    __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 256 ? 256 : __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
    __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 128 ? 128 : __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
    __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 64 ? 64 : __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
    __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN = (__SEG_END_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN - __SEG_START_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN) < 32 ? 32 : __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
    __SEG_ALIGN_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN = __SEG_SIZE_OS_APP_% !proc::KIND %_% !proc::NAME %_VAR_RGN;
%
end foreach
%
  }
  
  
  .rodata : {
    *(.rodata .rodata.*)
    . = ALIGN(16);
    _erodata = .;
  }

  PROVIDE(_reloc_region_end = .);

  PROVIDE(_zero_region_start = .);

/*----------------------------------------------------------------------------*/
/*                                                                            */
/*                          BSS (uninitialized data)                          */
/*                                                                            */
/*----------------------------------------------------------------------------*/
  .bss : {
    PROVIDE(_bss_start = .);
    *(.bss)
    . = ALIGN(16);
    _ebss = .;
    PROVIDE(_bss_end = .);
  }

/*----------------------------------------------------------------------------*/
/*                                                                            */
/*                                    Heap                                    */
/*                                                                            */
/*----------------------------------------------------------------------------*/
  .heap : {
    PROVIDE(_heap_start = .);
    *(.heap)
    . = . + 8192;
    . = ALIGN(4);
    PROVIDE(_heap_end = .);
  }

  PROVIDE(_zero_region_end = .);

  .svc_stack : {
    PROVIDE(_svc_stack_start = .);
    . = . + 4096;
    . = ALIGN(4);
    PROVIDE(_svc_stack_end = .);
  }

  .abt_stack : {
    PROVIDE(_abt_stack_start = .);
    . = . + 4096;
    . = ALIGN(4);
    PROVIDE(_abt_stack_end = .);
  }

  .und_stack : {
    PROVIDE(_und_stack_start = .);
    . = . + 4096;
    . = ALIGN(4);
    PROVIDE(_und_stack_end = .);
  }

  .irq_stack : {
    PROVIDE(_irq_stack_start = .);
    . = . + 4096;
    . = ALIGN(4);
    PROVIDE(_irq_stack_end = .);
  }

  .fiq_stack : {
    PROVIDE(_fiq_stack_start = .);
    . = . + 4096;
    . = ALIGN(4);
    PROVIDE(_fiq_stack_end = .);
  }

  .usr_stack : {
    PROVIDE(_usr_stack_start = .);
    . = . + 4096;
    . = ALIGN(4);
    PROVIDE(_usr_stack_end = .);
  }

  PROVIDE(_code_end = .);
}