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Atmosphere/fusee/fusee-primary/linker.ld
TuxSH e8306361f0 Rewrote crt0, init, and chainloading code
start.s, init.c, linker.ld and linker.specs are meant
to be re-used by user applications, should they remove the defines
from init.c and the .chainloader* sections from the linker script
2018-05-08 13:45:37 +02:00

189 lines
4.6 KiB
Text

OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
/* Mostly copied from https://github.com/devkitPro/buildscripts/blob/master/dkarm-eabi/crtls/3dsx.ld */
MEMORY
{
NULL : ORIGIN = 0x00000000, LENGTH = 0x1000
main : ORIGIN = 0x40010000, LENGTH = 0x20000
low_iram : ORIGIN = 0x40003000, LENGTH = 0x8000
}
SECTIONS
{
PROVIDE(__start__ = 0x40010000);
PROVIDE(__stack_top__ = 0x40010000);
PROVIDE(__stack_bottom__ = 0x4000C000);
PROVIDE(__heap_start__ = 0);
PROVIDE(__heap_end__ = 0);
. = __start__;
. = ALIGN(32);
.crt0 :
{
. = ALIGN(32);
KEEP( *(.text.start) )
KEEP( *(.init) )
. = ALIGN(4);
} >main
.chainloader_loadable :
{
. = ALIGN(32);
PROVIDE (__chainloader_start__ = .);
PROVIDE (__chainloader_lma__ = LOADADDR(.chainloader_loadable));
KEEP(*(.chainloader.text.start))
build/chainloader.o(.text*)
build/chainloader.o(.rodata*)
build/chainloader.o(.data*)
. = ALIGN(8);
} >low_iram AT>main
.chainloader_bss :
{
. = ALIGN(8);
PROVIDE (__chainloader_bss_start__ = .);
build/chainloader.o(.bss* COMMON)
. = ALIGN(8);
PROVIDE (__chainloader_end__ = .);
} >low_iram AT>main
.text :
{
. = ALIGN(4);
/* .text */
*(.text)
*(.text.*)
*(.glue_7)
*(.glue_7t)
*(.stub)
*(.gnu.warning)
*(.gnu.linkonce.t*)
. = ALIGN(4);
/* .fini */
KEEP( *(.fini) )
. = ALIGN(4);
} >main
.rodata :
{
*(.rodata)
*(.roda)
*(.rodata.*)
*all.rodata*(*)
*(.gnu.linkonce.r*)
SORT(CONSTRUCTORS)
. = ALIGN(4);
} >main
.preinit_array ALIGN(4) :
{
PROVIDE (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = .);
} >main
.init_array ALIGN(4) :
{
PROVIDE (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE (__init_array_end = .);
} >main
.fini_array ALIGN(4) :
{
PROVIDE (__fini_array_start = .);
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
PROVIDE (__fini_array_end = .);
} >main
.ctors ALIGN(4) :
{
KEEP (*crtbegin.o(.ctors)) /* MUST be first -- GCC requires it */
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
} >main
.dtors ALIGN(4) :
{
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} >main
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >main
__exidx_start = .;
ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } >main
__exidx_end = .;
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
CONSTRUCTORS
. = ALIGN(4);
} >main
.bss :
{
__bss_start__ = ALIGN(32);
*(.dynbss)
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b*)
*(COMMON)
. = ALIGN(8);
__bss_end__ = .;
} >main
__end__ = ABSOLUTE(.) ;
/* ==================
==== Metadata ====
================== */
/* Discard sections that difficult post-processing */
/DISCARD/ : { *(.group .comment .note) }
/* 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) }
/* 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) }
.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) }
}