path: root/bsps/powerpc/gen5200/start/linkcmds.gen5200_base

/**
 * @file
 *
 * Derived from internal linker script of GNU ld (GNU Binutils) 2.18 for elf32ppc emulation.
 */

OUTPUT_FORMAT ("elf32-powerpc", "elf32-powerpc", "elf32-powerpc")
OUTPUT_ARCH (powerpc)
ENTRY (start)
STARTUP (start.o)

bsp_ram_start = ORIGIN (RAM);
bsp_ram_end = ORIGIN (RAM) + LENGTH (RAM);
bsp_ram_size = LENGTH (RAM);

bsp_rom_start = ORIGIN (ROM);
bsp_rom_end = ORIGIN (ROM) + LENGTH (ROM);
bsp_rom_size = LENGTH (ROM);

bsp_dpram_start = ORIGIN (DPRAM);
bsp_dpram_end = ORIGIN (DPRAM) + LENGTH (DPRAM);
bsp_dpram_size = LENGTH (DPRAM);

bsp_section_align = 32;

RamBase = bsp_ram_start;
RamSize = bsp_ram_size;
RamEnd = RamBase + RamSize;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0;

/*
 * The upper layer linker command file may optionally define the symbol
 * bsp_section_small_data_area_size.  By default, the small data area is
 * defined by the .sdata and .sbss input sections.  Define
 * bsp_section_small_data_area_size, if you want to make space available for
 * dynamically loaded libraries (libdl).  Small memory targets which do not use
 * libdl, should not define this symbol.
 */

MEMORY {
	UNEXPECTED_SECTIONS : ORIGIN = 0xffffffff, LENGTH = 0
}

SECTIONS {
	/*
	 * BSP: MPC5200 registers
	 */
	.regs (NOLOAD) : { 
		MBAR = .;
		mpc5200 = .;
	} > REGS

	/*
	 * BSP: Exception vectors
	 */
	.vectors 0x100 : {
		*(.vectors)
	} > RAM

	/* 
	 * BSP: The initial stack will live in this area - between the vectors
	 * and the text section.
	 */

	.text 0x10000 : {
		/*
		 * BSP: Start of text section
		 */
		bsp_section_text_start = .;

		/*
		 * BSP: System startup entry
		 */
		KEEP (*(.entry))

		/*
		 * BSP: Moved into .text from .init
		 */
		KEEP (*(.init))

		*(.text .stub .text.* .gnu.linkonce.t.*)
		KEEP (*(.text.*personality*))
		/* .gnu.warning sections are handled specially by elf32.em.  */
		*(.gnu.warning)
		*(.glink)
		
		/*
		 * BSP: Special FreeBSD sysctl sections
		 */
		. = ALIGN (16);
		__start_set_sysctl_set = .;
		*(set_sysctl_*);
		__stop_set_sysctl_set = ABSOLUTE(.);
		*(set_domain_*);
		*(set_pseudo_*);

		/*
		 * BSP: Moved into .text from .*
		 */
		*(.rodata .rodata.* .gnu.linkonce.r.*)
		KEEP (*(SORT(.rtemsroset.*)))
		*(.rodata1)
		*(.interp)
		*(.note.gnu.build-id)
		*(.hash)
		*(.gnu.hash)
		*(.dynsym)
		*(.dynstr)
		*(.gnu.version)
		*(.gnu.version_d)
		*(.gnu.version_r)
		*(.eh_frame_hdr)

		/*
		 * BSP: Magic PPC stuff
		 */
		*(.PPC.*)

		/*
		 * BSP: Required by cpukit/score/src/threadhandler.c
		 */
		PROVIDE (_fini = .);

		/*
		 * BSP: Moved into .text from .fini
		 */
		KEEP (*(.fini))

		. = ALIGN (bsp_section_align);

		PROVIDE (__etext = .);
		PROVIDE (_etext = .);
		PROVIDE (etext = .);
	} > RAM

	.tdata : {
		_TLS_Data_begin = .;
		*(.tdata .tdata.* .gnu.linkonce.td.*)
		_TLS_Data_end = .;
	} > RAM
	.tbss : {
		_TLS_BSS_begin = .;
		*(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
		_TLS_BSS_end = .;
	} > RAM
	_TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
	_TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
	_TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
	_TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
	_TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
	_TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));

	.sdata2 : {
		PROVIDE (_SDA2_BASE_ = 32768);

		*(.sdata2 .sdata2.* .gnu.linkonce.s2.*)

		. = ALIGN (bsp_section_align);
	} > RAM

	.sbss2 : {
		*(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)

		. = ALIGN (bsp_section_align);

		/*
		 * BSP: End of text section
		 */
		bsp_section_text_end = .;
	} > RAM

	.data : {
		/*
		 * BSP: Start of data section
		 */
		bsp_section_data_start = .;

		/*
		 * BSP: Moved into .data from .ctors
		 */
		KEEP (*ecrti.o(.ctors))
		KEEP (*crtbegin.o(.ctors))
		KEEP (*crtbegin?.o(.ctors))
		KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o *ecrtn.o) .ctors))
		KEEP (*(SORT(.ctors.*)))
		KEEP (*(.ctors))

		/*
		 * BSP: Moved into .data from .dtors
		 */
		KEEP (*ecrti.o(.dtors))
		KEEP (*crtbegin.o(.dtors))
		KEEP (*crtbegin?.o(.dtors))
		KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o *ecrtn.o) .dtors))
		KEEP (*(SORT(.dtors.*)))
		KEEP (*(.dtors))

		/*
		 * BSP: Moved into .data from .*
		 */
		*(.tdata .tdata.* .gnu.linkonce.td.*)
		*(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
		*(.data1)
		KEEP (*(.eh_frame))
		*(.gcc_except_table .gcc_except_table.*)
		KEEP (*(.jcr))
		*(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro* .gnu.linkonce.d.rel.ro.*)
		*(.fixup)
		*(.got1)
		*(.got2)
		*(.dynamic)
		*(.got)
		*(.plt)
		PROVIDE_HIDDEN (__preinit_array_start = .);
		KEEP (*(.preinit_array))
		PROVIDE_HIDDEN (__preinit_array_end = .);
		PROVIDE_HIDDEN (__init_array_start = .);
		KEEP (*(SORT(.init_array.*)))
		KEEP (*(.init_array))
		PROVIDE_HIDDEN (__init_array_end = .);
		PROVIDE_HIDDEN (__fini_array_start = .);
		KEEP (*(.fini_array))
		KEEP (*(SORT(.fini_array.*)))
		PROVIDE_HIDDEN (__fini_array_end = .);

		*(.data .data.* .gnu.linkonce.d.*)
		KEEP (*(SORT(.rtemsrwset.*)))
		KEEP (*(.gnu.linkonce.d.*personality*))
		SORT(CONSTRUCTORS)

		. = ALIGN (bsp_section_align);
	} > RAM

	.sdata : {
		bsp_section_sdata_begin = .;
		PROVIDE (_SDA_BASE_ = 32768);
		*(.sdata .sdata.* .gnu.linkonce.s.*)

		. = ALIGN (bsp_section_align);

		_edata = .;
		PROVIDE (edata = .);

		/*
		 * BSP: End of data section
		 */
		bsp_section_data_end = .;
		bsp_section_sdata_end = .;
	} > RAM

	.sbss : {
		/*
		 * BSP: Start of bss section
		 */
		bsp_section_sbss_begin = .;

		__bss_start = .;

		PROVIDE (__sbss_start = .); PROVIDE (___sbss_start = .);
		*(.scommon)
		*(.dynsbss)
		*(.sbss .sbss.* .gnu.linkonce.sb.*)
		PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .);
		bsp_section_sbss_end = .;
		bsp_section_sdata_libdl_begin = .;
		. = DEFINED(bsp_section_small_data_area_size) ?
		      bsp_section_sdata_begin + bsp_section_small_data_area_size : .;
		bsp_section_sdata_libdl_end = .;

		. = ALIGN (bsp_section_align);
	} > RAM

	.bss : {
		bsp_section_bss_start = .;
		*(COMMON)
		*(.dynbss)
		*(.bss .bss.* .gnu.linkonce.b.*)

		. = ALIGN (bsp_section_align);

		__end = .;
		_end = .;
		PROVIDE (end = .);

		/*
		 * BSP: End of bss section
		 */
		bsp_section_bss_end = .;
	} > RAM

	/*
	 * BSP: Section sizes
	 */
	bsp_section_text_size = bsp_section_text_end - bsp_section_text_start;
	bsp_section_data_size = bsp_section_data_end - bsp_section_data_start;
	bsp_section_bss_size = bsp_section_bss_end - bsp_section_bss_start;

	.noinit (NOLOAD) : {
		*(SORT_BY_NAME (SORT_BY_ALIGNMENT (.noinit*)))
	} > RAM

	.rtemsstack (NOLOAD) : {
		*(SORT(.rtemsstack.*))
	} > RAM

	/*
	 * BSP: Work area start
	 */
	bsp_work_area_start = .;
	WorkAreaBase = bsp_work_area_start;
	
	/* 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) }
	.comment       0 : { *(.comment) }
	/* 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_line.* .debug_line_end) }
	.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) }
	/* DWARF 5.  */
	.debug_addr     0 : { *(.debug_addr) }
	.debug_line_str 0 : { *(.debug_line_str) }
	.debug_loclists 0 : { *(.debug_loclists) }
	.debug_macro    0 : { *(.debug_macro) }
	.debug_names    0 : { *(.debug_names) }
	.debug_rnglists 0 : { *(.debug_rnglists) }
	.debug_str_offsets 0 : { *(.debug_str_offsets) }
	.debug_sup      0 : { *(.debug_sup) }
	.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }

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

	/*
	 * This is a RTEMS specific section to catch all unexpected input
	 * sections.  In case you get an error like
	 *   "section `.unexpected_sections' will not fit in region
	 *   `UNEXPECTED_SECTIONS'"
	 * you have to figure out the offending input section and add it to the
	 * appropriate output section definition above.
	 */
	.unexpected_sections : { *(*) } > UNEXPECTED_SECTIONS
}