Refactor linker scripts. Rename irq and exception handlers.

Add common linker scripts for ram and rom. Add medium and high density
libraries for libcs3.

1 files changed, 11 insertions, 200 deletions

diff --git a/support/ld/maple_native/flash.ld b/support/ld/maple_native/flash.ld
index 4e820d2..4358419 100644
--- a/support/ld/maple_native/flash.ld
+++ b/support/ld/maple_native/flash.ld
@@ -1,211 +1,22 @@
-/* Linker script for STM32 (by Lanchon with Mods by LeafLabs)

- *

- * Version:Sourcery G++ 4.2-84

- * BugURL:https://support.codesourcery.com/GNUToolchain/

- *

- *  Copyright 2007 CodeSourcery.

- *

- * The authors hereby grant permission to use, copy, modify, distribute,

- * and license this software and its documentation for any purpose, provided

- * that existing copyright notices are retained in all copies and that this

- * notice is included verbatim in any distributions. No written agreement,

- * license, or royalty fee is required for any of the authorized uses.

- * Modifications to this software may be copyrighted by their authors

- * and need not follow the licensing terms described here, provided that

- * the new terms are clearly indicated on the first page of each file where

- * they apply. */

-

-/* Linker script for STM32 (by Lanchon),

- * ROM and RAM relocated to their positions 

- * as placed by Maple bootloader

- *

- * Configure target memory and included script

- * according to your application requirements. */

+/*

+ * Linker script for STM32.

+ * STM32 high density chip linker script. Loads to flash with Maple bootloader

+ */

 

-/* Define memory spaces. */

 MEMORY

 {

   ram (rwx) : ORIGIN = 0x20000C00, LENGTH = 61K

   rom (rx)  : ORIGIN = 0x08005000, LENGTH = 492K

 }

 

-OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")

-ENTRY(_start)

-SEARCH_DIR(.)

-/* GROUP(-lgcc -lc -lcs3 -lcs3unhosted -lcs3-lanchon-stm32) */

-GROUP(libgcc.a libc.a libm.a libcs3-lanchon-stm32.a)

-

-/* These force the linker to search for particular symbols from

- * the start of the link process and thus ensure the user's

- * overrides are picked up

+/*

+ * Use high density device vector table

  */

-EXTERN(__cs3_reset_lanchon_stm32)

-INCLUDE names.inc

-EXTERN(__cs3_interrupt_vector_lanchon_stm32)

-EXTERN(__cs3_start_c main __cs3_stack __cs3_heap_end)

-EXTERN(_start)

-

-PROVIDE(__cs3_stack = __cs3_region_start_ram + __cs3_region_size_ram);

-PROVIDE(__cs3_heap_start = _end);

-PROVIDE(__cs3_heap_end = __cs3_region_start_ram + __cs3_region_size_ram);

-

-SECTIONS

-{

-  .text :

-  {

-    CREATE_OBJECT_SYMBOLS

-    __cs3_region_start_rom = .;

-    *(.cs3.region-head.rom)

-    __cs3_interrupt_vector = __cs3_interrupt_vector_lanchon_stm32;

-    *(.cs3.interrupt_vector)

-    /* Make sure we pulled in an interrupt vector.  */

-    ASSERT (. != __cs3_interrupt_vector_lanchon_stm32, "No interrupt vector");

-    *(.rom)

-    *(.rom.b)

-

-    PROVIDE(__cs3_reset_lanchon_stm32 = _start);

-    __cs3_reset = __cs3_reset_lanchon_stm32;

-    *(.cs3.reset)

-

-    *(.text .text.* .gnu.linkonce.t.*)

-    *(.plt)

-    *(.gnu.warning)

-    *(.glue_7t) *(.glue_7) *(.vfp11_veneer)

-

-    *(.rodata .rodata.* .gnu.linkonce.r.*)

-

-    *(.ARM.extab* .gnu.linkonce.armextab.*)

-    *(.gcc_except_table)

-    *(.eh_frame_hdr)

-    *(.eh_frame)

-

-    . = ALIGN(4);

-    KEEP(*(.init))

-

-    . = ALIGN(4);

-    __preinit_array_start = .;

-    KEEP (*(.preinit_array))

-    __preinit_array_end = .;

+GROUP(libcs3_stm32_high_density.a)

 

-    . = ALIGN(4);

-    __init_array_start = .;

-    KEEP (*(SORT(.init_array.*)))

-    KEEP (*(.init_array))

-    __init_array_end = .;

+REGION_ALIAS("REGION_TEXT", rom);

+REGION_ALIAS("REGION_DATA", ram);

+REGION_ALIAS("REGION_BSS", ram);

 

-    . = ALIGN(0x4);

-    KEEP (*crtbegin.o(.ctors))

-    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))

-    KEEP (*(SORT(.ctors.*)))

-    KEEP (*crtend.o(.ctors))

+INCLUDE common_rom.inc

 

-    . = ALIGN(4);

-    KEEP(*(.fini))

-

-    . = ALIGN(4);

-    __fini_array_start = .;

-    KEEP (*(.fini_array))

-    KEEP (*(SORT(.fini_array.*)))

-    __fini_array_end = .;

-

-    KEEP (*crtbegin.o(.dtors))

-    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))

-    KEEP (*(SORT(.dtors.*)))

-    KEEP (*crtend.o(.dtors))

-

-    . = ALIGN(4);

-    __cs3_regions = .;

-    LONG (0)

-    LONG (__cs3_region_init_ram)

-    LONG (__cs3_region_start_ram)

-    LONG (__cs3_region_init_size_ram)

-    LONG (__cs3_region_zero_size_ram)

-  } >rom

-

-  /* .ARM.exidx is sorted, so has to go in its own output section.  */

-  __exidx_start = .;

-  .ARM.exidx :

-  {

-    *(.ARM.exidx* .gnu.linkonce.armexidx.*)

-  } >rom

-  __exidx_end = .;

-  .text.align :

-  {

-    . = ALIGN(8);

-    _etext = .;

-  } >rom

-

-/* expose a custom rom only section */

-  .USER_FLASH :

-  {

-    *(.USER_FLASH)

-  } >rom

-

-

-  /* __cs3_region_end_rom is deprecated */

-  __cs3_region_end_rom = __cs3_region_start_rom + LENGTH(rom);

-  __cs3_region_size_rom = LENGTH(rom);

-  __cs3_region_num = 1;

-

-  .data :

-  {

-    __cs3_region_start_ram = .;

-    *(.cs3.region-head.ram)

-    KEEP(*(.jcr))

-    *(.got.plt) *(.got)

-    *(.shdata)

-    *(.data .data.* .gnu.linkonce.d.*)

-    *(.ram)

-    . = ALIGN (8);

-    _edata = .;

-  } >ram AT>rom

-  .bss :

-  {

-    *(.shbss)

-    *(.bss .bss.* .gnu.linkonce.b.*)

-    *(COMMON)

-    *(.ram.b)

-    . = ALIGN (8);

-    _end = .;

-    __end = .;

-  } >ram AT>rom

-  /* __cs3_region_end_ram is deprecated */

-  __cs3_region_end_ram = __cs3_region_start_ram + LENGTH(ram);

-  __cs3_region_size_ram = LENGTH(ram);

-  __cs3_region_init_ram = LOADADDR (.data);

-  __cs3_region_init_size_ram = _edata - ADDR (.data);

-  __cs3_region_zero_size_ram = _end - _edata;

-  __cs3_region_num = 1;

-

-  .stab 0 (NOLOAD) : { *(.stab) }

-  .stabstr 0 (NOLOAD) : { *(.stabstr) }

-  /* DWARF debug sections.

-   * Symbols in the DWARF debugging sections are relative to the beginning

-   * of the section so we begin them at 0.  */

-  /* DWARF 1 */

-  .debug          0 : { *(.debug) }

-  .line           0 : { *(.line) }

-  /* GNU DWARF 1 extensions */

-  .debug_srcinfo  0 : { *(.debug_srcinfo) }

-  .debug_sfnames  0 : { *(.debug_sfnames) }

-  /* DWARF 1.1 and DWARF 2 */

-  .debug_aranges  0 : { *(.debug_aranges) }

-  .debug_pubnames 0 : { *(.debug_pubnames) }

-  /* DWARF 2 */

-  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }

-  .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) }

-  /* SGI/MIPS DWARF 2 extensions */

-  .debug_weaknames 0 : { *(.debug_weaknames) }

-  .debug_funcnames 0 : { *(.debug_funcnames) }

-  .debug_typenames 0 : { *(.debug_typenames) }

-  .debug_varnames  0 : { *(.debug_varnames) }

-

-  .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }

-  .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) }

-  /DISCARD/ : { *(.note.GNU-stack) }

-}