diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/shared/startup/linkcmds.rom')
| -rw-r--r-- | c/src/lib/libbsp/arm/shared/startup/linkcmds.rom | 385 |
1 files changed, 385 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/shared/startup/linkcmds.rom b/c/src/lib/libbsp/arm/shared/startup/linkcmds.rom new file mode 100644 index 0000000000..75f8b6e07d --- /dev/null +++ b/c/src/lib/libbsp/arm/shared/startup/linkcmds.rom @@ -0,0 +1,385 @@ +/** + * @file + * + * @brief Linker command base file for configuration with internal and external + * RAM and optional ROM load. + * + * You need to add a linker command file to your board support package that + * includes this file at the end and provides the following definitions. + * + * Compulsory are the memory regions RAM_INT, RAM_EXT and NIRVANA. + * <pre> + * MEMORY { + * RAM_INT (AIW) : ORIGIN = 0x40000000, LENGTH = 64k + * RAM_EXT (AIW) : ORIGIN = 0xa0000000, LENGTH = 32M + * NIRVANA : ORIGIN = 0, LENGTH = 0 + * } + * </pre> + * + * You may optionally provide ROM start and size values. + * <pre> + * bsp_rom_start = 0x80000000; + * bsp_rom_size = 0x01000000; + * </pre> + * + * Optionally you can enable the load to ROM. It is enabled then + * bsp_enable_rom_load is defined. The value is arbitrary. + * <pre> + * bsp_enable_rom_load = 1; + * </pre> + * + * Include the linker command base file. This file has to be installed in the + * same directory than your linker command file. + * <pre> + * INCLUDE linkcmds.base + * </pre> + * + * You may define optionally values for the following sizes: + * - bsp_ram_int_size + * - bsp_ram_ext_size + * - bsp_stack_abt_size + * - bsp_stack_fiq_size + * - bsp_stack_irq_size + * - bsp_stack_svc_size + * - bsp_stack_undef_size + */ + +/* + * Copyright (c) 2008 + * Embedded Brains GmbH + * Obere Lagerstr. 30 + * D-82178 Puchheim + * Germany + * rtems@embedded-brains.de + * + * The license and distribution terms for this file may be found in the file + * LICENSE in this distribution or at http://www.rtems.com/license/LICENSE. + */ + +OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") + +OUTPUT_ARCH (arm) + +ENTRY (start) + +/* + * BSP: Symbols that may be defined externally. The minimum alignment + * requirement for regions is bsp_section_align. + */ +bsp_ram_int_size = DEFINED (bsp_ram_int_size) ? bsp_ram_int_size : LENGTH (RAM_INT); + +bsp_ram_ext_size = DEFINED (bsp_ram_ext_size) ? bsp_ram_ext_size : LENGTH (RAM_EXT); + +bsp_rom_start = DEFINED (bsp_rom_start) ? bsp_rom_start : 0; + +bsp_rom_size = DEFINED (bsp_rom_size) ? bsp_rom_size : 0; + +bsp_ram_ext_load_start = DEFINED (bsp_enable_rom_load) ? bsp_rom_start : bsp_ram_ext_start; + +bsp_stack_abt_size = DEFINED (bsp_stack_abt_size) ? bsp_stack_abt_size : 128; + +bsp_stack_fiq_size = DEFINED (bsp_stack_fiq_size) ? bsp_stack_fiq_size : 128; + +bsp_stack_irq_size = DEFINED (bsp_stack_irq_size) ? bsp_stack_irq_size : 256; + +bsp_stack_svc_size = DEFINED (bsp_stack_svc_size) ? bsp_stack_svc_size : 256; + +bsp_stack_undef_size = DEFINED (bsp_stack_undef_size) ? bsp_stack_undef_size : 128; + +/* + * BSP: Global symbols + */ +bsp_ram_int_start = ORIGIN (RAM_INT); +bsp_ram_int_end = bsp_ram_int_start + bsp_ram_int_size; + +bsp_ram_ext_start = ORIGIN (RAM_EXT); +bsp_ram_ext_end = bsp_ram_ext_start + bsp_ram_ext_size; + +bsp_rom_end = bsp_rom_start + bsp_rom_size; + +bsp_section_align = 16; + +bsp_stack_align = 16; + +SECTIONS { + .vector : { + /* + * BSP: Start of vector section + */ + bsp_section_vector_start = .; + + /* + * BSP: Reserve space for the the exception vector table and + * the pointers to the default exceptions handlers. + */ + . = . + 64; + + . = ALIGN (bsp_section_align); + + /* + * BSP: End of vector section + */ + bsp_section_vector_end = .; + } > RAM_INT + + bsp_section_vector_size = bsp_section_vector_end - bsp_section_vector_start; + + .text : { + /* + * 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) + + /* + * BSP: Magic ARM stuff + */ + *(.ARM.*) + *(.glue_7) + *(.glue_7t) + *(.vfp11_veneer) + + /* + * 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.*) + *(.rodata1) + *(.eh_frame_hdr) + + /* + * BSP: Required by cpukit/score/src/threadhandler.c + */ + PROVIDE (_fini = .); + + /* + * BSP: Moved into .text from .fini + */ + KEEP (*(.fini)) + + . = ALIGN (bsp_section_align); + + /* + * BSP: End of text section + */ + bsp_section_text_end = .; + } > ROM_INT + + bsp_section_text_size = bsp_section_text_end - bsp_section_text_start; + + .data : AT (bsp_section_text_end) { + /* + * BSP: Start of data section + */ + bsp_section_data_start = .; + + /* + * BSP: Moved into .data from .ctors + */ + /* gcc uses crtbegin.o to find the start of + the constructors, so we make sure it is + first. Because this is a wildcard, it + doesn't matter if the user does not + actually link against crtbegin.o; the + linker won't look for a file to match a + wildcard. The wildcard also means that it + doesn't matter which directory crtbegin.o + is in. */ + KEEP (*crtbegin.o(.ctors)) + KEEP (*crtbegin?.o(.ctors)) + /* We don't want to include the .ctor section from + the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + + /* + * BSP: Moved into .data from .dtors + */ + KEEP (*crtbegin.o(.dtors)) + KEEP (*crtbegin?.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + + /* + * BSP: Moved into .data from .* + */ + *(.data1) + KEEP (*(.eh_frame)) + *(.gcc_except_table .gcc_except_table.*) + KEEP (*(.jcr)) + + *(.data .data.* .gnu.linkonce.d.*) + KEEP (*(.gnu.linkonce.d.*personality*)) + SORT(CONSTRUCTORS) + + . = ALIGN (bsp_section_align); + + /* + * BSP: End of data section + */ + bsp_section_data_end = .; + } > RAM_EXT + + bsp_section_data_size = bsp_section_data_end - bsp_section_data_start; + + .bss : { + /* + * BSP: Start of bss section + */ + bsp_section_bss_start = .; + + *(COMMON) + *(.dynbss) + *(.bss .bss.* .gnu.linkonce.b.*) + + . = ALIGN (bsp_section_align); + + /* + * BSP: End of bss section + */ + bsp_section_bss_end = .; + } > RAM_EXT + + bsp_section_bss_size = bsp_section_bss_end - bsp_section_bss_start; + + .stack : { + /* + * BSP: Start of stack section + */ + bsp_section_stack_start = .; + + . = ALIGN (bsp_stack_align); + bsp_stack_abt_start = .; + . = . + bsp_stack_abt_size; + + . = ALIGN (bsp_stack_align); + bsp_stack_fiq_start = .; + . = . + bsp_stack_fiq_size; + + . = ALIGN (bsp_stack_align); + bsp_stack_irq_start = .; + . = . + bsp_stack_irq_size; + + . = ALIGN (bsp_stack_align); + bsp_stack_svc_start = .; + . = . + bsp_stack_svc_size; + + . = ALIGN (bsp_stack_align); + bsp_stack_undef_start = .; + . = . + bsp_stack_undef_size; + + . = ALIGN (bsp_section_align); + + /* + * BSP: End of stack section + */ + bsp_section_stack_end = .; + } > RAM_INT + + bsp_section_stack_size = bsp_section_stack_end - bsp_section_stack_start; + + .work_area : { + /* + * BSP: Start of work area. The work area will occupy the remaining + * RAM_EXT region and contains the RTEMS work space and heap. We cannot + * assign the region end directly since this leads to a region full + * warning. + */ + bsp_section_work_area_start = .; + + . = bsp_ram_ext_end - 4; + + . = ALIGN (bsp_section_align); + + /* + * BSP: End of work area + */ + bsp_section_work_area_end = .; + } > RAM_EXT + + bsp_section_work_area_size = bsp_section_work_area_end - bsp_section_work_area_start; + + /* + * BSP: External symbols (FIXME) + */ + RamBase = bsp_ram_ext_start; + RamSize = bsp_ram_ext_size; + WorkAreaBase = bsp_section_work_area_start; + HeapSize = 0; + + /* 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_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) } + .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } + + /DISCARD/ : { + *(.note.GNU-stack) *(.gnu_debuglink) + } + + /* + * BSP: Catch all unknown sections + */ + .nirvana : { + *(*) + } > NIRVANA +} |