/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* $Source: src/occ_gpe0/link.cmd $                                       */
/*                                                                        */
/* OpenPOWER OnChipController Project                                     */
/*                                                                        */
/* Contributors Listed Below - COPYRIGHT 2015,2016                        */
/* [+] International Business Machines Corp.                              */
/*                                                                        */
/*                                                                        */
/* 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.                         */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */

// Need to do this so that elf32-powerpc is not modified!
#undef powerpc

#ifndef INITIAL_STACK_SIZE
#define INITIAL_STACK_SIZE 256
#endif

OUTPUT_FORMAT(elf32-powerpc);

// Shared data segment starts at 0xfff00000 and is 4kb, so GPE0
// is loaded at 0xfff01000
#define SRAM_START 0xfff01000
#define SRAM_LENGTH 0xF000
// Exception vectors
#define PPE_DEBUG_PTRS_OFFSET 0x180

MEMORY
{
 sram : ORIGIN = SRAM_START, LENGTH = SRAM_LENGTH
}

// This symbol is only needed by external debug tools, so add this command
// to ensure that table is pulled in by the linker even though PPE code
// never references it.
EXTERN(pk_debug_ptrs);

SECTIONS
{
    . = SRAM_START;
    . = ALIGN(512);

    _VECTOR_START = .;
    __START_ADDR__ = .;

    .vectors  _VECTOR_START  : {  *(.vectors) } > sram

    ///////////////////////////////////////////////////////////////////////////
    // Debug Pointers Table
    //
    // We want the debug pointers table to always appear at
    // PPE_DEBUG_PTRS_OFFSET from the IVPR address.
    ///////////////////////////////////////////////////////////////////////////

    _DEBUG_PTRS_START = _VECTOR_START + PPE_DEBUG_PTRS_OFFSET;
    .debug_ptrs _DEBUG_PTRS_START : { *(.debug_ptrs) } > sram

    ////////////////////////////////
    // All non-vector code goes here
    ////////////////////////////////
    .text       : { *(.text*) . = ALIGN(128); } > sram

    ////////////////////////////////
    // Read-only Data
    ////////////////////////////////

    _RODATA_SECTION_BASE = .;

    // SDA2 constant sections .sdata2 and .sbss2 must be adjacent to each
    // other.  Our SDATA sections are small so we'll use strictly positive
    // offsets. 

    _SDA2_BASE_ = .;
   .sdata2 . : { *(.sdata2* ) . = ALIGN(128); } > sram
   .sbss2  . : { *(.sbss2* ) . = ALIGN(128); } > sram

   // Other read-only data.  

   .rodata . : { *(.rodata*) *(.got2*) . = ALIGN(128); } > sram

    __READ_ONLY_DATA_LEN__ = . - _RODATA_SECTION_BASE;
    __WRITEABLE_DATA_ADDR__ = .;
    __WRITEABLE_DATA_LEN__ = . - __WRITEABLE_DATA_ADDR__;

    ////////////////////////////////
    // Read-write Data
    ////////////////////////////////

    _DATA_SECTION_BASE = .;

    // SDA sections .sdata and .sbss must be adjacent to each
    // other.  Our SDATA sections are small so we'll use strictly positive
    // offsets. 

    _SDA_BASE_ = .;
    .sdata  . : { *(.sdata*) . = ALIGN(128); } > sram
    .sbss   . : { *(.sbss.debug) *(.sbss*)  . = ALIGN(128); } > sram

    // Other read-write data
    // It's not clear why boot.S is generating empty .glink,.iplt

   .rela   . : { *(.rela*) . = ALIGN(128); } > sram
   .rwdata . : { *(.data*) *(.bss*) . = ALIGN(128); } > sram
//   .iplt . : { *(.iplt) ALIGN(128); } > sram

   _PK_INITIAL_STACK_LIMIT = .;
   . = . + INITIAL_STACK_SIZE;
   _PK_INITIAL_STACK = . - 1;

}