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OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(vectors)
GROUP( libgcc.a libc.a libm.a libcr_newlib_nohost.a crti.o crtn.o crtbegin.o crtend.o )
/* Memory Definitions: */
MEMORY
{
Flash (rx) : ORIGIN = 0x00000000, LENGTH = 512k
Ram (rwx) : ORIGIN = 0x40000000, LENGTH = 32k
UsbRam (rw) : ORIGIN = 0x7FD00000, LENGTH = 8k
EthRam (rw) : ORIGIN = 0x7FE00000, LENGTH = 16k
CanRam (rw) : ORIGIN = 0xE0038000, LENGTH = 2k
BatRam (rw) : ORIGIN = 0xE0084000, LENGTH = 2k
}
/* Stack sizes: */
UND_Stack_Size = 16;
SVC_Stack_Size = 512;
ABT_Stack_Size = 16;
FIQ_Stack_Size = 16;
IRQ_Stack_Size = 256;
Stack_Size_Total = UND_Stack_Size + SVC_Stack_Size + ABT_Stack_Size + FIQ_Stack_Size + IRQ_Stack_Size;
/* Stack tops for each mode: */
__und_stack_top__ = __stacks_top__;
__abt_stack_top__ = __und_stack_top__ - UND_Stack_Size ;
__fiq_stack_top__ = __abt_stack_top__ - ABT_Stack_Size ;
__irq_stack_top__ = __fiq_stack_top__ - FIQ_Stack_Size ;
__svc_stack_top__ = __irq_stack_top__ - IRQ_Stack_Size ;
/* C-accessible symbols for memory address ranges: */
__FLASH_segment_start__ = ORIGIN( Flash );
__FLASH_segment_end__ = ORIGIN( Flash ) + LENGTH( Flash );
__SRAM_segment_start__ = ORIGIN( Ram );
__SRAM_segment_end__ = ORIGIN( Ram ) + LENGTH( Ram );
/* Stacks (full descending) at top of RAM, grows downward:
*
* __stack_min__ is used by the malloc implementation to ensure heap never collides
* with stack (assuming stack never grows beyond Stack_Size_Total in length) */
__stacks_top__ = __SRAM_segment_end__;
__stacks_min__ = __SRAM_segment_end__ - Stack_Size_Total;
SECTIONS
{
/* first section is .text which is used for code */
__text_start__ = . ;
.text : {
__privileged_code_start__ = . ;
KEEP( *( .vectors ) )
*( .privileged_code )
__privileged_code_end__ = .;
*( .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 = . ;
. = ALIGN( 4 ) ;
__init_array_start = . ;
KEEP( *( SORT( .init_array.* ) ) )
KEEP( *( .init_array ) )
__init_array_end = . ;
. = ALIGN( 4 ) ;
KEEP( *crtbegin.o( .ctors ) )
KEEP( *( EXCLUDE_FILE( *crtend.o ) .ctors ) )
KEEP( *( SORT( .ctors.* ) ) )
KEEP( *crtend.o( .ctors ) )
. = 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 ) )
} >Flash
__exidx_start = . ;
.ARM.exidx : {
*( .ARM.exidx* .gnu.linkonce.armexidx.* )
} >Flash
__exidx_end = . ;
.text.align : { . = ALIGN( 8 ) ; } >Flash /* Alignment schenanigans */
__text_end__ = . ;
/* .bss section -- used for uninitialized data */
/* Located at the start of RAM */
.bss (NOLOAD) : {
__bss_start__ = . ;
*crt0.o( .ram_vectors )
__user_bss_start__ = . ;
*( .user_bss )
__user_bss_end__ = . ;
*( .shbss )
*( .bss .bss.* .gnu.linkonce.b.* )
*( COMMON )
*( .ram.b )
. = ALIGN( 8 ) ;
__bss_end__ = . ;
} >Ram AT>Flash
/* .data section -- used for initialized data */
.data : {
__data_start__ = . ;
KEEP( *( .jcr ) )
*( .got.plt ) *( .got )
*( .shdata )
*( .data .data.* .gnu.linkonce.d.* )
*( .ram )
. = ALIGN( 8 ) ;
__data_end__ = . ;
} >Ram AT>Flash
__data_init_start__ = LOADADDR( .data ) ;
/* Heap starts here and grows up in memory */
. = ALIGN( 8 ) ;
__heap_start__ = . ;
_pvHeapStart = . ;
end = . ;
.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) }
/* DWARF 3 */
.debug_pubtypes 0 : { *(.debug_pubtypes) }
.debug_ranges 0 : { *(.debug_ranges) }
.note.gnu.arm.ident 0 : { KEEP( *( .note.gnu.arm.ident ) ) }
.ARM.attributes 0 : {
KEEP( *( .ARM.attributes ) )
KEEP( *( .gnu.attributes ) )
}
/DISCARD/ : { *( .note.GNU-stack ) }
/* C data can be defined as being in special purpose RAMs using
* __attribute__ ((section ("ethram"))) for example. */
.usbram (NOLOAD):
{
*( .usbram )
*( .usbram.* )
} > UsbRam
.ethram (NOLOAD):
{
*( .ethram )
*( .ethram.* )
} > EthRam
.canram (NOLOAD):
{
*( .canram )
*( .canram.* )
} > CanRam
.batram (NOLOAD):
{
*( .batram )
*( .batram.* )
} > BatRam
}
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