px4-firmware/nuttx/configs/compal_e99/nsh_compalram/ld.script

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/*
* Linker script for running from internal SRAM on Compal phones
*
* This script is tailored specifically to the requirements imposed
* on us by the Compal bootloader.
*
*/
OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(__start)
MEMORY
{
/* compal-loaded binary: our text, initialized data */
LRAM (rw) : ORIGIN = 0x00800000, LENGTH = 0x00020000
/* compal-loaded binary: our unitialized data, stacks, heap */
IRAM (rw) : ORIGIN = 0x00820000, LENGTH = 0x00020000
}
SECTIONS
{
. = 0x800000;
/* romloader data section, contains passthru interrupt vectors */
.compal.loader (NOLOAD) : { . = 0x100; } > LRAM
/* image signature (prepended by osmocon according to phone type) */
.compal.header (NOLOAD) : { . = 4; } > LRAM
/* initialization code */
. = ALIGN(4);
.text.start : {
PROVIDE(__start = .);
KEEP(*(.text.start))
*(.text.start)
} > LRAM
/* exception vectors from 0x80001c to 0x800034 */
.text.exceptions 0x80001c : AT (LOADADDR(.text.start) + SIZEOF(.text.start)) {
KEEP(*(.text.exceptions))
* (.text.exceptions)
. = ALIGN(4);
} > LRAM
PROVIDE(_exceptions = LOADADDR(.text.exceptions));
/* code */
. = ALIGN(4);
.text (LOADADDR(.text.exceptions) + SIZEOF(.text.exceptions)) :
AT (LOADADDR(.text.exceptions) + SIZEOF(.text.exceptions)) {
/* regular code */
*(.text*)
/* always-in-ram code */
*(.ramtext*)
/* gcc voodoo */
*(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)
. = ALIGN(4);
} > LRAM
PROVIDE(_text_start = LOADADDR(.text));
PROVIDE(_text_end = LOADADDR(.text) + SIZEOF(.text));
/* constructor pointers */
.ctors : {
/* ctor count */
LONG(SIZEOF(.ctors) / 4 - 2)
/* ctor pointers */
KEEP(*(SORT(.ctors)))
/* end of list */
LONG(0)
} > LRAM
PROVIDE(_ctor_start = LOADADDR(.ctors));
PROVIDE(_ctor_end = LOADADDR(.ctors) + SIZEOF(.ctors));
/* destructor pointers */
.dtors : {
/* dtor count */
LONG(SIZEOF(.dtors) / 4 - 2)
/* dtor pointers */
KEEP(*(SORT(.dtors)))
/* end of list */
LONG(0)
} > LRAM
PROVIDE(_dtor_start = LOADADDR(.dtors));
PROVIDE(_dtor_end = LOADADDR(.dtors) + SIZEOF(.dtors));
/* read-only data */
. = ALIGN(4);
.rodata : {
*(.rodata*)
} > LRAM
PROVIDE(_rodata_start = LOADADDR(.rodata));
PROVIDE(_rodata_end = LOADADDR(.rodata) + SIZEOF(.rodata));
/* initialized data */
. = ALIGN(4);
.data : {
*(.data)
} > LRAM
PROVIDE(_data_start = LOADADDR(.data));
PROVIDE(_data_end = LOADADDR(.data) + SIZEOF(.data));
/* pic offset tables */
. = ALIGN(4);
.got : {
*(.got)
*(.got.plt) *(.igot.plt) *(.got) *(.igot)
} > LRAM
PROVIDE(_got_start = LOADADDR(.got));
PROVIDE(_got_end = LOADADDR(.got) + SIZEOF(.got));
/* uninitialized data */
.bss (NOLOAD) : {
. = ALIGN(4);
__bss_start = .;
_sbss = ABSOLUTE(.);
*(.bss)
_ebss = ABSOLUTE(.);
} > IRAM
. = ALIGN(4);
__bss_end = .;
PROVIDE(_bss_start = __bss_start);
PROVIDE(_bss_end = __bss_end);
/* end of image */
. = ALIGN(4);
_end = .;
PROVIDE(end = .);
}