nuttx/configs/open1788/scripts/user-space.ld

/****************************************************************************
 * configs/open1788/scripts/user-space.ld
 *
 *   Copyright (C) 2011, 2013 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 * 3. Neither the name NuttX 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.
 *
 ****************************************************************************/

/* The LPC1788 has 512Kb of FLASH beginning at address 0x0000:0000 and
 * 96Kb of total SRAM: 64Kb of SRAM in the CPU block beginning at address
 * 0x10000000 and 32Kb of Peripheral SRAM in two banks, 8Kb at addresses
 * 0x20000000 bank0 first and 8kb at 0x20002000 at bank0 second. And 16Kb
 * at 0x20004000 on bank1.
 *
 * For MPU support, the kernel-mode NuttX section is assumed to be 64Kb of
 * FLASH and 4Kb of SRAM.  That, of course, can be optimized as needed (See
 * also configs/open1788/scripts/kernel-space.ld).
 */

MEMORY
{
    /* 256Kb FLASH */

    kflash (rx)      : ORIGIN = 0x00000000, LENGTH = 64K
    uflash (rx)      : ORIGIN = 0x00010000, LENGTH = 448K

    /* 64Kb of SRAM in the CPU block */

    ksram (rwx)      : ORIGIN = 0x10000000, LENGTH = 4K
    usram (rwx)      : ORIGIN = 0x10001000, LENGTH = 60K

    /* Other peripheral memory (free, nothing is linked here) */

    ahbram8_b0a(rwx) : ORIGIN = 0x20000000, LENGTH = 8K
    ahbram8_b0b(rwx) : ORIGIN = 0x20002000, LENGTH = 8K
    ahbram16(rwx)    : ORIGIN = 0x20004000, LENGTH = 16K
}

/* Make sure that the critical memory management functions are in user-space.
 * Currently, the plan is that the memory manager will reside in user-space
 * but be usable both by kernel- and user-space code
 */

EXTERN(umm_initialize)
EXTERN(umm_addregion)
EXTERN(umm_trysemaphore)
EXTERN(umm_givesemaphore)

EXTERN(malloc)
EXTERN(realloc)
EXTERN(zalloc)
EXTERN(free)

OUTPUT_ARCH(arm)

SECTIONS
{
    .userspace : {
        *(.userspace)
    } > uflash

    .text : {
        _stext = ABSOLUTE(.);
        *(.text .text.*)
        *(.fixup)
        *(.gnu.warning)
        *(.rodata .rodata.*)
        *(.gnu.linkonce.t.*)
        *(.glue_7)
        *(.glue_7t)
        *(.got)
        *(.gcc_except_table)
        *(.gnu.linkonce.r.*)
        _etext = ABSOLUTE(.);
    } > uflash

    .init_section : {
        _sinit = ABSOLUTE(.);
        *(.init_array .init_array.*)
        _einit = ABSOLUTE(.);
    } > uflash

    .ARM.extab : {
        *(.ARM.extab*)
    } > uflash

    __exidx_start = ABSOLUTE(.);
    .ARM.exidx : {
        *(.ARM.exidx*)
    } > uflash

    __exidx_end = ABSOLUTE(.);

    _eronly = ABSOLUTE(.);

    .data : {
        _sdata = ABSOLUTE(.);
        *(.data .data.*)
        *(.gnu.linkonce.d.*)
        CONSTRUCTORS
        _edata = ABSOLUTE(.);
    } > usram AT > uflash

    .bss : {
        _sbss = ABSOLUTE(.);
        *(.bss .bss.*)
        *(.gnu.linkonce.b.*)
        *(COMMON)
        _ebss = ABSOLUTE(.);
    } > usram

    /* Stabs debugging sections */

    .stab 0 : { *(.stab) }
    .stabstr 0 : { *(.stabstr) }
    .stab.excl 0 : { *(.stab.excl) }
    .stab.exclstr 0 : { *(.stab.exclstr) }
    .stab.index 0 : { *(.stab.index) }
    .stab.indexstr 0 : { *(.stab.indexstr) }
    .comment 0 : { *(.comment) }
    .debug_abbrev 0 : { *(.debug_abbrev) }
    .debug_info 0 : { *(.debug_info) }
    .debug_line 0 : { *(.debug_line) }
    .debug_pubnames 0 : { *(.debug_pubnames) }
    .debug_aranges 0 : { *(.debug_aranges) }
}