arm.ld

基于ecos的redboot

//=============================================================================
//
// MLT linker script for ARM
// adapted from packages/hal/arm/pid/v1_1/src/pid.ld
//
//=============================================================================
//####COPYRIGHTBEGIN####
//                                                                          
// -------------------------------------------                              
// The contents of this file are subject to the Red Hat eCos Public License 
// Version 1.1 (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.redhat.com/                                                   
//                                                                          
// Software distributed under the License is distributed on an "AS IS"      
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
// License for the specific language governing rights and limitations under 
// the License.                                                             
//                                                                          
// The Original Code is eCos - Embedded Configurable Operating System,      
// released September 30, 1998.                                             
//                                                                          
// The Initial Developer of the Original Code is Red Hat.                   
// Portions created by Red Hat are                                          
// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
// All Rights Reserved.                                                     
// -------------------------------------------                              
//                                                                          
//####COPYRIGHTEND####
//=============================================================================

#include <pkgconf/system.h>

STARTUP(vectors.o)
ENTRY(reset_vector)
#ifdef EXTRAS
INPUT(extras.o)
#endif
GROUP(libtarget.a libgcc.a)

#if defined(__ARMEB__)
OUTPUT_FORMAT(elf32-bigarm)
#endif

#if defined(CYG_HAL_STARTUP_ROM)    \
    && defined(CYGPKG_HAL_ARM_PID)  \
    && defined(__ARMEB__)
// Note: This is only needed when the PID board is used in BE mode without
//       the proper ROM controller part.
//
// In big-endian mode, merge .RODATA sections into the .DATA section. This
// causes the data in these sections to be copied to RAM. When the CPU
// makes byte or halfword access to RAM, A0/A1 are modified correctly.
// This does not happen on ROM access (unless the proper ROM controller
// is used).
//
#define MERGE_IN_RODATA *(.rodata*)
#define CYGPRI_PID_BE_WORKAROUND
#else
// Keep RODATA in separate sections.
#define MERGE_IN_RODATA
#undef  CYGPRI_PID_BE_WORKAROUND
#endif

#define ALIGN_LMA 4
#define FOLLOWING(_section_) AT ((LOADADDR (_section_) + SIZEOF (_section_) + ALIGN_LMA - 1) & ~ (ALIGN_LMA - 1))
#define LMA_EQ_VMA
#define FORCE_OUTPUT . = .

#define SECTIONS_BEGIN                          \
  /* Debug information */                       \
  .debug_aranges  0 : { *(.debug_aranges) }     \
  .debug_pubnames 0 : { *(.debug_pubnames) }    \
  .debug_info     0 : { *(.debug_info) }        \
  .debug_abbrev   0 : { *(.debug_abbrev) }      \
  .debug_line     0 : { *(.debug_line) }        \
  .debug_frame    0 : { *(.debug_frame) }       \
  .debug_str      0 : { *(.debug_str) }         \
  .debug_loc      0 : { *(.debug_loc) }         \
  .debug_macinfo  0 : { *(.debug_macinfo) }

#define SECTION_fixed_vectors(_region_, _vma_, _lma_) \
    .fixed_vectors _vma_ : _lma_ \
    { FORCE_OUTPUT; KEEP (*(.fixed_vectors)) } \
    > _region_

#define SECTION_rom_vectors(_region_, _vma_, _lma_) \
    .rom_vectors _vma_ : _lma_ \
    { __rom_vectors_vma = ABSOLUTE(.); \
      FORCE_OUTPUT; KEEP (*(.vectors)) } \
    > _region_ \
    __rom_vectors_lma = LOADADDR(.rom_vectors);

#define SECTION_text(_region_, _vma_, _lma_) \
    .text _vma_ : _lma_ \
    { _stext = ABSOLUTE(.); \
    PROVIDE (__stext = ABSOLUTE(.)); \
    *(.text*) *(.gnu.warning) *(.gnu.linkonce*) *(.init) \
    *(.glue_7) *(.glue_7t)  \
    } > _region_ \
    _etext = .; PROVIDE (__etext = .);

#define SECTION_fini(_region_, _vma_, _lma_) \
    .fini _vma_ : _lma_ \
    { FORCE_OUTPUT; *(.fini) } \
    > _region_

#if defined(CYGPRI_PID_BE_WORKAROUND)
#define SECTION_rodata(_region_, _vma_, _lma_)
#define SECTION_rodata1(_region_, _vma_, _lma_)
#else
#define SECTION_rodata(_region_, _vma_, _lma_) \
    .rodata _vma_ : _lma_ \
    { FORCE_OUTPUT; *(.rodata*) } \
    > _region_

#define SECTION_rodata1(_region_, _vma_, _lma_) \
    .rodata1 _vma_ : _lma_ \
    { FORCE_OUTPUT; *(.rodata1) } \
    > _region_
#endif // CYGPRI_PID_BE_WORKAROUND

#define SECTION_fixup(_region_, _vma_, _lma_) \
    .fixup _vma_ : _lma_ \
    { FORCE_OUTPUT; *(.fixup) } \
    > _region_

#define SECTION_gcc_except_table(_region_, _vma_, _lma_) \
    .gcc_except_table _vma_ : _lma_ \
    { FORCE_OUTPUT; *(.gcc_except_table) } \
    > _region_

#define SECTION_mmu_tables(_region_, _vma_, _lma_) \
    .mmu_tables _vma_ : _lma_ \
    { FORCE_OUTPUT; *(.mmu_tables) } \
    > _region_

#define SECTION_sram(_region_, _vma_, _lma_) \
    .sram _vma_ : _lma_ \
    { FORCE_OUTPUT; *(.sram*) } \
    > _region_

#define SECTION_data(_region_,  _vma_, _lma_) \
    .data _vma_ : _lma_ \
    { __ram_data_start = ABSOLUTE (.); *(.data*) *(.data1) MERGE_IN_RODATA \
    _GOT1_START_ = ABSOLUTE (.); *(.got1) _GOT1_END_ = ABSOLUTE (.); \
    _GOT2_START_ = ABSOLUTE (.); *(.got2) _GOT2_END_ = ABSOLUTE (.); \
    . = ALIGN (4); \
    KEEP(*( SORT (.ecos.table.*))) ;            \
    . = ALIGN (4); \
    __CTOR_LIST__ = ABSOLUTE (.); KEEP (*(SORT (.ctors*))) __CTOR_END__ = ABSOLUTE (.); \
    __DTOR_LIST__ = ABSOLUTE (.); KEEP (*(SORT (.dtors*))) __DTOR_END__ = ABSOLUTE (.); \
    *(.dynamic) *(.sdata*) *(.sbss*) \
    . = ALIGN (4); *(.2ram.*) } \
    > _region_ \
    __rom_data_start = LOADADDR (.data); \
    __ram_data_end = .; PROVIDE (__ram_data_end = .); _edata = .; PROVIDE (edata = .); \
    PROVIDE (__rom_data_end = LOADADDR (.data) + SIZEOF(.data));

#define SECTION_bss(_region_,  _vma_, _lma_) \
    .bss _vma_ : _lma_ \
    { __bss_start = ABSOLUTE (.); \
    *(.scommon) *(.dynbss) *(.bss*) *(COMMON) \
    __bss_end = ABSOLUTE (.); } \
    > _region_

#define SECTIONS_END . = ALIGN(4); _end = .; PROVIDE (end = .);

#include <pkgconf/hal_arm.h>
#include CYGHWR_MEMORY_LAYOUT_LDI