From 57afb4058710a978bd7b07a368125d04378c62f1 Mon Sep 17 00:00:00 2001 From: Kelly Rauchenberger Date: Tue, 11 Jul 2017 16:37:21 -0400 Subject: started tweaking with stuff --- gba/gba_pkjb.ld | 296 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 296 insertions(+) create mode 100644 gba/gba_pkjb.ld (limited to 'gba/gba_pkjb.ld') diff --git a/gba/gba_pkjb.ld b/gba/gba_pkjb.ld new file mode 100644 index 0000000..102cb42 --- /dev/null +++ b/gba/gba_pkjb.ld @@ -0,0 +1,296 @@ +/* Linker Script Original v1.3 by Jeff Frohwein */ +/* v1.0 - Original release */ +/* v1.1 - Added proper .data section support */ +/* v1.2 - Added support for c++ & iwram overlays */ +/* - Major contributions by Jason Wilkins. */ +/* v1.3 - .ewram section now can be used when */ +/* compiling for MULTIBOOT mode. This fixes */ +/* malloc() in DevKitAdvance which depends */ +/* on __eheap_start instead of end to define*/ +/* the starting location of heap space. */ +/* External global variable __gba_iwram_heap*/ +/* support added to allow labels end, _end, */ +/* & __end__ to point to end of iwram or */ +/* the end of ewram. */ +/* Additions by WinterMute */ +/* v1.4 - .sbss section added for unitialised */ +/* data in ewram */ +/* v1.5 - padding section added to stop EZF */ +/* stripping important data */ +/* v1.6 - added memory sections */ + +/* This file is released into the public domain */ +/* for commercial or non-commercial use with no */ +/* restrictions placed upon it. */ + +/* NOTE!!!: This linker script defines the RAM & */ +/* ROM start addresses. In order for it to work */ +/* properly, remove -Ttext and -Tbss linker */ +/* options from your makefile if they are */ +/* present. */ + +/* You can use the following to view section */ +/* addresses in your .elf file: */ +/* objdump -h file.elf */ +/* Please note that empty sections may incorrectly*/ +/* list the lma address as the vma address for */ +/* some versions of objdump. */ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) + +MEMORY { + + rom : ORIGIN = 0x08000000, LENGTH = 32M + iwram : ORIGIN = 0x03000000, LENGTH = 32K + ewram : ORIGIN = 0x02000000, LENGTH = 256K +} + + + +__text_start = ORIGIN(ewram); +__eheap_end = ORIGIN(ewram) + LENGTH(ewram); +__iwram_start = ORIGIN(iwram); +__iwram_top = ORIGIN(iwram) + LENGTH(iwram);; + +__sp_irq = __iwram_top - 0x060; +__sp_usr = __sp_irq - 0x0a0; +__irq_flags = 0x03007ff8; + +SECTIONS +{ + . = __text_start; + .init : + { + KEEP (*(.init)) + . = ALIGN(4); + } >ewram =0xff + + .plt : + { + *(.plt) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >ewram + + .text ALIGN (4): + { + *(EXCLUDE_FILE (*.iwram*) .text) + *(.text .stub .text.* .gnu.linkonce.t.*) + KEEP (*(.text.*personality*)) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + *(.glue_7t) *(.glue_7) *(.vfp11_veneer) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >ewram = 0xff + + __text_end = .; + .fini : + { + KEEP (*(.fini)) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >ewram =0 + + .rodata : + { + *(.rodata) + *all.rodata*(*) + *(.roda) + *(.rodata.*) + *(.gnu.linkonce.r*) + SORT(CONSTRUCTORS) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >ewram = 0xff + + .ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >ewram + __exidx_start = .; + .ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } >ewram + __exidx_end = .; + /* Ensure the __preinit_array_start label is properly aligned. We + could instead move the label definition inside the section, but + the linker would then create the section even if it turns out to + be empty, which isn't pretty. */ + . = ALIGN(32 / 8); + PROVIDE (__preinit_array_start = .); + .preinit_array : { KEEP (*(.preinit_array)) } >ewram = 0xff + PROVIDE (__preinit_array_end = .); + PROVIDE (__init_array_start = .); + .init_array : { KEEP (*(.init_array)) } >ewram = 0xff + PROVIDE (__init_array_end = .); + PROVIDE (__fini_array_start = .); + .fini_array : { KEEP (*(.fini_array)) } >ewram = 0xff + PROVIDE (__fini_array_end = .); + .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 (*(EXCLUDE_FILE (*crtend.o) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >ewram = 0 + + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >ewram = 0 + + .jcr : { KEEP (*(.jcr)) } >ewram + .eh_frame : + { + KEEP (*(.eh_frame)) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >ewram = 0 + + .gcc_except_table : + { + *(.gcc_except_table) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + } >ewram = 0 + + __iwram_lma = .; + + .iwram __iwram_start : AT (__iwram_lma) + { + __iwram_start__ = ABSOLUTE(.) ; + *(.iwram) + *iwram.*(.text) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + __iwram_end__ = ABSOLUTE(.) ; + } >iwram = 0xff + + __data_lma = __iwram_lma + SIZEOF(.iwram) ; + + .bss ALIGN(4) (NOLOAD): + { + __bss_start__ = ABSOLUTE(.); + *(.dynbss) + *(.gnu.linkonce.b*) + *(.bss*) + *(COMMON) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + __bss_end__ = ABSOLUTE(.) ; + } + + .data ALIGN(4) : AT (__data_lma) + { + __data_start__ = ABSOLUTE(.); + *(.data) + *(.data.*) + *(.gnu.linkonce.d*) + CONSTRUCTORS + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + __data_end__ = ABSOLUTE(.); + } >iwram = 0xff + + __iwram_overlay_lma = __data_lma + SIZEOF(.data); + + PROVIDE (edata = .); + __iwram_overlay_start = . ; + + OVERLAY ALIGN(4) : NOCROSSREFS AT (__iwram_overlay_lma) + { + .iwram0 { *(.iwram0) . = ALIGN(4);} + .iwram1 { *(.iwram1) . = ALIGN(4);} + .iwram2 { *(.iwram2) . = ALIGN(4);} + .iwram3 { *(.iwram3) . = ALIGN(4);} + .iwram4 { *(.iwram4) . = ALIGN(4);} + .iwram5 { *(.iwram5) . = ALIGN(4);} + .iwram6 { *(.iwram6) . = ALIGN(4);} + .iwram7 { *(.iwram7) . = ALIGN(4);} + .iwram8 { *(.iwram8) . = ALIGN(4);} + .iwram9 { *(.iwram9) . = ALIGN(4);} + } >iwram = 0xff + + __ewram_lma = LOADADDR(.iwram0) + SIZEOF(.iwram0)+SIZEOF(.iwram1)+SIZEOF(.iwram2)+SIZEOF(.iwram3)+SIZEOF(.iwram4)+SIZEOF(.iwram5)+SIZEOF(.iwram6)+SIZEOF(.iwram7)+SIZEOF(.iwram8)+SIZEOF(.iwram9); + + __iwram_overlay_end = __ewram_lma ; + + /* v1.3 */ + __ewram_start = __ewram_lma ; + + .ewram __ewram_start : AT (__ewram_lma) + { + *(.ewram) + . = ALIGN(4); /* REQUIRED. LD is flaky without it. */ + __ewram_end = ABSOLUTE(.); + } >ewram = 0xff + + __ewram_overlay_lma = __ewram_lma + SIZEOF(.ewram); + + .sbss ALIGN(4)(NOLOAD): + { + __sbss_start__ = ABSOLUTE(.); + *(.sbss) + . = ALIGN(4); + __sbss_end__ = ABSOLUTE(.); + __end__ = ABSOLUTE(.); + __eheap_start = ABSOLUTE(.); + } + + OVERLAY ALIGN(4): NOCROSSREFS AT (__ewram_overlay_lma) + { + .ewram0 { *(.ewram0) . = ALIGN(4);} + .ewram1 { *(.ewram1) . = ALIGN(4);} + .ewram2 { *(.ewram2) . = ALIGN(4);} + .ewram3 { *(.ewram3) . = ALIGN(4);} + .ewram4 { *(.ewram4) . = ALIGN(4);} + .ewram5 { *(.ewram5) . = ALIGN(4);} + .ewram6 { *(.ewram6) . = ALIGN(4);} + .ewram7 { *(.ewram7) . = ALIGN(4);} + .ewram8 { *(.ewram8) . = ALIGN(4);} + .ewram9 { *(.ewram9) . = ALIGN(4);} + } >ewram = 0xff + __ewram_overlay_end = ABSOLUTE(.); + + __eheap_start = __ewram_overlay_end ; + + _end = __ewram_overlay_end; + __end__ = __ewram_overlay_end; + __rom_end__ = __ewram_overlay_end; + + /* 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) } + .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) } + .stack 0x80000 : { _stack = .; *(.stack) } + /* These must appear regardless of . */ +} -- cgit 1.4.1