diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/gba/startup/linkcmds')
| -rw-r--r-- | c/src/lib/libbsp/arm/gba/startup/linkcmds | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/gba/startup/linkcmds b/c/src/lib/libbsp/arm/gba/startup/linkcmds new file mode 100644 index 0000000000..b985e9c6ab --- /dev/null +++ b/c/src/lib/libbsp/arm/gba/startup/linkcmds @@ -0,0 +1,348 @@ +/** + * @file linkcmds + * + * GBA BSP linker script + */ +/* + * RTEMS GBA BSP + * + * Copyright (c) Jeff Frohwein + * + * Copyright (c) 2003 Jason Wilkins + * + * Copyright (c) 2004 Markku Puro <markku.puro@kopteri.net> + * + * 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. + * + * $Id$ + */ + +/***************************************************************************** + * This Linker Script is based on work by Jeff Frohwein and Jason Wilkins + ***************************************************************************** + * Linker Script v1.3 by Jeff Frohwein + * : + * This file is released into the public domain + * for commercial or non-commercial use with no + * restrictions placed upon it. + ***************************************************************************** + * Copyright 2003, Jason Wilkins. This source code is free for any use except + * that this copyright notice and the following disclaimers remain intact when + * the source is distributed. There are absolutely no restrictions on use of + * object code generated from this source, but the disclaimers remain in force. + * + * THIS CODE WAS NOT MADE IN ASSOCIATION WITH NINTENDO AND DOES NOT MAKE USE OF + * ANY INTELLECTUAL PROPERTY CLAIMED BY NINTENDO. + * + * GAMEBOY ADVANCE IS A TRADEMARK OF NINTENDO. + * + * THIS CODE HAS BEEN PROVIDED "AS-IS" WITHOUT A WARRANTY OF ANY KIND, EITHER + * EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO IMPLIED WARRANTIES OF + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. THE ENTIRE RISK AS TO THE + * QUALITY OR PERFORMANCE OF THE CODE IS WITH YOU. + * + * IN NO EVENT, UNLESS AGREED TO IN WRITING, WILL ANY COPYRIGHT HOLDER, OR ANY + * OTHER PARTY, BE HELD LIABLE FOR ANY DAMAGES RESULTING FROM THE USE OR + * INABILITY TO USE THIS CODE. + * + *****************************************************************************/ +/* @cond INCLUDE_ASM */ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) + +/************************************************************************* + The linker script MEMORY directive is not used here due to the fact + that __ro_start is not always a fixed value. + ************************************************************************* +MEMORY +{ + rom : ORIGIN = 0x08000000 , LENGTH = 96M + iwram : ORIGIN = 0x03000000 , LENGTH = 32K + ewram : ORIGIN = 0x02000000 , LENGTH = 256K + sram : ORIGIN = 0x0E000000 , LENGTH = 64K +} + *************************************************************************/ +__gba_ewram_start = 0x02000000; +__gba_ewram_end = 0x02040000; +__gba_iwram_start = 0x03000000; +__gba_iwram_end = 0x03008000; +__gba_rom_start = 0x08000000; +__gba_rom_end = 0x0E000000; +__gba_sram_start = 0x0E000000; +__gba_sram_end = 0x0E010000; + +__sp_irq_size = 0x2A0; +_stack_size = 0xA00; +__irq_vector = __gba_iwram_end - 0x0004; /* 0x03007FFC */ +__sp_svc = __gba_iwram_end - 0x0020; /* 0x03007FE0 */ +__sp_irq = __gba_iwram_end - 0x0060; /* 0x03007FA0 */ +__sp_usr = __sp_irq - __sp_irq_size; /* 0x03007D00 */ +__sp_limit = __sp_usr - _stack_size; /* 0x03007300 */ +__heap_limit = DEFINED(__gba_multiboot) ? __gba_ewram_end : ( DEFINED(__gba_iwram_bss) ? __sp_limit : __gba_ewram_end ) ; + + +SECTIONS +{ +/*** read-only sections ***/ +/************************************************************************* + if 'multiboot' allocate prog in __gba_ewram_start (0x02000000-0x0207FFFF) + else allocate prog in __gba_rom_start (0x08000000-0x0DFFFFFF) + *************************************************************************/ + __ro_start = DEFINED(__gba_multiboot) ? __gba_ewram_start : __gba_rom_start ; + PROVIDE(__text_start__ = __ro_start ); + .text __ro_start : + { + CREATE_OBJECT_SYMBOLS + */start.o(.text) + *(EXCLUDE_FILE(*.rodata.* *.ewram.o *.iwram.o) .text) + *(.stub .text.* .gnu.linkonce.t*) + + /* + * Special FreeBSD sysctl sections. + */ + . = ALIGN (16); + __start_set_sysctl_set = .; + *(set_sysctl_*); + __stop_set_sysctl_set = ABSOLUTE(.); + *(set_domain_*); + *(set_pseudo_*); + + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.glue_7) + *(.glue_7t) + . = ALIGN(4); + } =0xFF + + .init : + { + *(.init) + . = ALIGN(4); + } =0xFF + + .fini : + { + *(.fini) + . = ALIGN(4); + } =0xFF + + __rodata_start = . ; + .rodata : + { + *(.rodata1) + *(EXCLUDE_FILE(*.rodata.* *.ewram.o *.iwram.o) .rodata) + *(.rodata.* .gnu.linkonce.r*) + *(.roda) /* deprecated: for compatibility with objcopyroda */ + SORT(CONSTRUCTORS) + . = ALIGN(4); + } =0xFF + __rodata_end = . ; + + .eh_frame : + { + KEEP(*(.eh_frame)) + . = ALIGN(4); + } =0xFF + + .gcc_except_table : + { + *(.gcc_except_table) + . = ALIGN(4); + } =0xFF + + .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)) + /* 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) .ctors)) + KEEP(*(SORT(.ctors.*))) + KEEP(*(.ctors)) + . = ALIGN(4); + } =0xFF + + .dtors : + { + KEEP(*crtbegin.o(.dtors)) + KEEP(*(EXCLUDE_FILE (*crtend.o ) .dtors)) + KEEP(*(SORT(.dtors.*))) + KEEP(*(.dtors)) + . = ALIGN(4); + } =0xFF + + .jcr : + { + *(.jcr) + . = ALIGN(4); + } =0xFF + +/************************************************************************* + calculate __ro_end + *************************************************************************/ + __ro_end = + ADDR(.text) + + SIZEOF(.text) + + SIZEOF(.init) + + SIZEOF(.fini) + + SIZEOF(.rodata) + + SIZEOF(.eh_frame) + + SIZEOF(.gcc_except_table) + + SIZEOF(.ctors) + + SIZEOF(.dtors) + + SIZEOF(.jcr); + PROVIDE(__text_end__ = __ro_end ); + +/*** IWRAM ***/ +/************************************************************************* + allocate iwram in __gba_iwram_start (0x03000000-0x03003FFF) + *************************************************************************/ + __load_start_iwram = __ro_end; + . = __gba_iwram_start ; + __iwram_start = . ; + PROVIDE(__iwram_start__ = . ); + .iwram : AT(__load_start_iwram) + { + /* put irq_vector_table in stat of iwram */ + CREATE_OBJECT_SYMBOLS + _irq_vector_table = .; + PROVIDE(irq_vector_table = .); + . += 4; + . = ALIGN(16 * 4); + PROVIDE(irq_vector_table_end = .); + _irq_vector_table_end = .; + *(.iwram .iwram.*) + *.iwram.o (.text .rodata .data) + . = ALIGN(4); + } =0xFF + __iwram_end = . ; + PROVIDE(__iwram_end__ = . ); + __load_stop_iwram = __load_start_iwram + SIZEOF(.iwram); + + _irq_vector_table_size = _irq_vector_table_end - _irq_vector_table; + PROVIDE(_irq_max_vector = _irq_vector_table_size / 4 ); + + +/*** EWRAM ***/ +/************************************************************************* + if 'multiboot' allocate prog+ewram in __gba_ewram + else allocate only ewram in __gba_ewram_start + *************************************************************************/ + . = DEFINED(__gba_multiboot) ? __load_stop_iwram : __gba_ewram_start ; + __load_start_ewram = __load_stop_iwram; + __ewram_start = . ; + PROVIDE(__ewram_start__ = . ); + .ewram : AT(__load_start_ewram) + { + *(.ewram .ewram.*) + *.ewram.o (.text .rodata .data) + . = ALIGN(4); + } =0xFF + __ewram_end = . ; + PROVIDE(__ewram_end__ = . ); + __load_stop_ewram = __load_start_ewram + SIZEOF(.ewram) ; + +/************************************************************************* + if 'multiboot' allocate prog+ewram+data+bss in __gba_ewram + else if 'iwram_data' allocate data in __gba_iwram + else allocate data in __gba_ewram + *************************************************************************/ + . = DEFINED(__gba_multiboot) ? __load_stop_ewram : (DEFINED(__gba_iwram_data) ? __iwram_end : __ewram_end) ; + __load_start_data = __load_stop_ewram; + __data_start = . ; + PROVIDE(__data_start__ = . ); + .data : AT(__load_start_data) + { + *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) + *(EXCLUDE_FILE(*.rodata.* *.ewram.o *.iwram.o) .data) + *(.data.* .gnu.linkonce.d.*) + *(.data1) + *(.tdata .tdata.* .gnu.linkonce.td.*) + *(.sdata .sdata.* .gnu.linkonce.s.*) + . = ALIGN(4); + } =0xFF + __data_end = . ; + PROVIDE(__data_end__ = . ); + __load_stop_data = __load_start_data + SIZEOF(.data); + +/*** BSS ***/ +/************************************************************************* + if 'multiboot' allocate prog+ewram+data+bss in __gba_ewram + else if 'iwram_data' and 'iwram_bss' allocate iwram+data+bss in __gba_iwram + else if !'iwram_data' and 'iwram_bss' allocate iwram+bss in __gba_iwram + else allocate data+ewram+bss in __gba_ewram + *************************************************************************/ + . = DEFINED(__gba_multiboot) ? __load_stop_data : ( DEFINED(__gba_iwram_data) ? (DEFINED(__gba_iwram_bss) ? __data_end : __ewram_end) : (DEFINED(__gba_iwram_bss) ? __iwram_end : __data_end) ) ; + __bss_start = . ; + PROVIDE(__bss_start__ = . ); + .bss : + { + *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) + *(.tbss .tbss.* .gnu.linkonce.tb.*) + *(.tcommon) + *(.sbss .sbss.* .gnu.linkonce.sb.*) + *(.scommon) + *(.bss .bss.* .gnu.linkonce.b*) + *(COMMON) + . = ALIGN(4); + } + __bss_end = . ; + PROVIDE(__bss_end__ = . ); + PROVIDE(_bss_end__ = . ); + + PROVIDE(_end = . ); + PROVIDE(__end__ = _end); + PROVIDE(end = _end); + + +/*** debugging info ***/ + /* 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) } + .comment 0 : { *(.comment) } + /* 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) } +} +/* @endcond */ |