rockbox/firmware/target/arm/ipod/app.lds
Boris Gjenero ca9111ef64 Add KEEP() around vectors in linker scripts.
Vectors are needed by the CPU, but they don't need to be accessed by Rockbox.
Without the KEEP(), they can be removed when liking with --gc-sections, 
creating a broken binary without any warnings. This tells the linker to not
remove them. It should enable use of --gc-sections for all targets. When not
using --gc-sections, this does not change the binary.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31351 a1c6a512-1295-4272-9138-f99709370657
2011-12-18 06:43:08 +00:00

200 lines
3.8 KiB
Text

#include "config.h"
ENTRY(start)
OUTPUT_FORMAT(elf32-littlearm)
OUTPUT_ARCH(arm)
STARTUP(target/arm/crt0-pp.o)
#define PLUGINSIZE PLUGIN_BUFFER_SIZE
#define CODECSIZE CODEC_SIZE
#define DRAMSIZE (MEMORYSIZE * 0x100000) - PLUGINSIZE - CODECSIZE
#define DRAMORIG 0x00000000
#define IRAMORIG 0x40000000
#define IRAMSIZE 0xc000
#ifdef CPU_PP502x
#define NOCACHE_BASE 0x10000000
#else
#define NOCACHE_BASE 0x28000000
#endif
#define CACHEALIGN_SIZE 16
/* End of the audio buffer, where the codec buffer starts */
#define ENDAUDIOADDR (DRAMORIG + DRAMSIZE)
/* Where the codec buffer ends, and the plugin buffer starts */
#define ENDADDR (ENDAUDIOADDR + CODECSIZE)
MEMORY
{
DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
IRAM : ORIGIN = IRAMORIG, LENGTH = IRAMSIZE
}
SECTIONS
{
.text :
{
loadaddress = .;
_loadaddress = .;
. = ALIGN(0x200);
*(.init.text)
*(.text*)
*(.glue_7)
*(.glue_7t)
. = ALIGN(0x4);
} > DRAM
.rodata :
{
*(.rodata) /* problems without this, dunno why */
*(.rodata*)
*(.rodata.str1.1)
*(.rodata.str1.4)
. = ALIGN(0x4);
} > DRAM
.data :
{
*(.data*)
. = ALIGN(0x4);
} > DRAM
#if NOCACHE_BASE != 0
/* .ncdata section is placed at uncached physical alias address and is
* loaded at the proper cached virtual address - no copying is
* performed in the init code */
.ncdata . + NOCACHE_BASE :
{
. = ALIGN(CACHEALIGN_SIZE);
*(.ncdata*)
. = ALIGN(CACHEALIGN_SIZE);
} AT> DRAM
#endif
/DISCARD/ :
{
*(.eh_frame)
}
.vectors 0x0 :
{
_vectorsstart = .;
KEEP(*(.vectors));
_vectorsend = .;
} AT> DRAM
_vectorscopy = LOADADDR(.vectors);
_noloaddram = LOADADDR(.vectors);
.ibss IRAMORIG (NOLOAD) :
{
_iedata = .;
*(.qharray)
*(.ibss)
. = ALIGN(0x4);
_iend = .;
} > IRAM
.iram _iend :
{
_iramstart = .;
*(.icode)
*(.irodata)
*(.idata)
. = ALIGN(0x4);
_iramend = .;
} > IRAM AT> DRAM
_iramcopy = LOADADDR(.iram);
.init ENDAUDIOADDR :
{
. = ALIGN(4);
_initstart = .;
*(.init)
_initend = .;
} AT> DRAM
_initcopy = LOADADDR(.init);
.idle_stacks (NOLOAD) :
{
*(.idle_stacks)
#if NUM_CORES > 1
cpu_idlestackbegin = .;
. += IDLE_STACK_SIZE;
cpu_idlestackend = .;
#endif
cop_idlestackbegin = .;
. += IDLE_STACK_SIZE;
cop_idlestackend = .;
} > IRAM
.stack (NOLOAD) :
{
*(.stack)
stackbegin = .;
. += 0x2000;
stackend = .;
} > IRAM
/* .bss and .ncbss are treated as a single section to use one init loop to
* zero it - note "_edata" and "_end" */
.bss _noloaddram (NOLOAD) :
{
_edata = .;
*(.bss*)
*(COMMON)
. = ALIGN(0x4);
} > DRAM
#if NOCACHE_BASE != 0
.ncbss . + NOCACHE_BASE (NOLOAD):
{
. = ALIGN(CACHEALIGN_SIZE);
*(.ncbss*)
. = ALIGN(CACHEALIGN_SIZE);
} AT> DRAM
#endif
/* This will be aligned by preceding alignments */
.endaddr . - NOCACHE_BASE (NOLOAD) :
{
_end = .;
} > DRAM
.audiobuf (NOLOAD) :
{
_audiobuffer = .;
. = ALIGN(0x4);
audiobuffer = .;
} > DRAM
.audiobufend ENDAUDIOADDR (NOLOAD) :
{
#ifdef IPOD_VIDEO
audiobufend_lds = .;
#else
audiobufend = .;
#endif
_audiobufend = .;
} > DRAM
.codec ENDAUDIOADDR (NOLOAD) :
{
codecbuf = .;
_codecbuf = .;
}
.plugin ENDADDR (NOLOAD) :
{
_pluginbuf = .;
pluginbuf = .;
}
}