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/* |
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* linker script for configurable keymap |
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* |
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* This adds keymap section which places keymap at fixed address and |
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* is based on binutils-avr ldscripts(/usr/lib/ldscripts/avr5.x). |
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*/ |
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OUTPUT_FORMAT("elf32-avr","elf32-avr","elf32-avr") |
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OUTPUT_ARCH(avr:35) |
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MEMORY |
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{ |
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/* With keymap section |
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* |
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* Flash Map of ATMega32U4(32KB) |
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* +------------+ 0x0000 |
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* | .vectors | |
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* | .progmem | |
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* | .init0-9 | > text region |
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* | .text | |
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* | .fini9-0 | |
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* | | |
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* |------------| _etext |
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* | .data | |
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* | .bss | > data region |
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* | .noinit | |
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* | | |
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* |------------| 0x6800 |
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* | .keymap | > keymap region(2KB) |
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* |------------| 0x7000 |
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* | bootloader | 4KB |
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* +------------+ 0x7FFF |
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*/ |
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text (rx) : ORIGIN = 0, LENGTH = 64K |
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keymap (rw!x) : ORIGIN = 0x6800, LENGTH = 2K |
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data (rw!x) : ORIGIN = 0x800060, LENGTH = 0xffa0 |
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eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = 64K |
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fuse (rw!x) : ORIGIN = 0x820000, LENGTH = 1K |
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lock (rw!x) : ORIGIN = 0x830000, LENGTH = 1K |
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signature (rw!x) : ORIGIN = 0x840000, LENGTH = 1K |
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} |
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SECTIONS |
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{ |
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/* Read-only sections, merged into text segment: */ |
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.hash : { *(.hash) } |
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.dynsym : { *(.dynsym) } |
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.dynstr : { *(.dynstr) } |
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.gnu.version : { *(.gnu.version) } |
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.gnu.version_d : { *(.gnu.version_d) } |
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.gnu.version_r : { *(.gnu.version_r) } |
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.rel.init : { *(.rel.init) } |
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.rela.init : { *(.rela.init) } |
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.rel.text : |
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{ |
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*(.rel.text) |
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*(.rel.text.*) |
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*(.rel.gnu.linkonce.t*) |
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} |
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.rela.text : |
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{ |
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*(.rela.text) |
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*(.rela.text.*) |
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*(.rela.gnu.linkonce.t*) |
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} |
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.rel.fini : { *(.rel.fini) } |
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.rela.fini : { *(.rela.fini) } |
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.rel.rodata : |
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{ |
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*(.rel.rodata) |
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*(.rel.rodata.*) |
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*(.rel.gnu.linkonce.r*) |
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} |
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.rela.rodata : |
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{ |
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*(.rela.rodata) |
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*(.rela.rodata.*) |
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*(.rela.gnu.linkonce.r*) |
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} |
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.rel.data : |
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{ |
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*(.rel.data) |
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*(.rel.data.*) |
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*(.rel.gnu.linkonce.d*) |
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} |
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.rela.data : |
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{ |
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*(.rela.data) |
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*(.rela.data.*) |
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*(.rela.gnu.linkonce.d*) |
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} |
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.rel.ctors : { *(.rel.ctors) } |
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.rela.ctors : { *(.rela.ctors) } |
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.rel.dtors : { *(.rel.dtors) } |
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.rela.dtors : { *(.rela.dtors) } |
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.rel.got : { *(.rel.got) } |
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.rela.got : { *(.rela.got) } |
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.rel.bss : { *(.rel.bss) } |
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.rela.bss : { *(.rela.bss) } |
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.rel.plt : { *(.rel.plt) } |
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.rela.plt : { *(.rela.plt) } |
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/* Internal text space or external memory. */ |
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.text : |
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{ |
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*(.vectors) |
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KEEP(*(.vectors)) |
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/* For data that needs to reside in the lower 64k of progmem. */ |
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*(.progmem.gcc*) |
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*(.progmem*) |
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. = ALIGN(2); |
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__trampolines_start = . ; |
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/* The jump trampolines for the 16-bit limited relocs will reside here. */ |
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*(.trampolines) |
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*(.trampolines*) |
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__trampolines_end = . ; |
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/* For future tablejump instruction arrays for 3 byte pc devices. |
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We don't relax jump/call instructions within these sections. */ |
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*(.jumptables) |
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*(.jumptables*) |
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/* For code that needs to reside in the lower 128k progmem. */ |
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*(.lowtext) |
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*(.lowtext*) |
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__ctors_start = . ; |
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*(.ctors) |
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__ctors_end = . ; |
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__dtors_start = . ; |
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*(.dtors) |
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__dtors_end = . ; |
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KEEP(SORT(*)(.ctors)) |
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KEEP(SORT(*)(.dtors)) |
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/* From this point on, we don't bother about wether the insns are |
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below or above the 16 bits boundary. */ |
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*(.init0) /* Start here after reset. */ |
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KEEP (*(.init0)) |
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*(.init1) |
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KEEP (*(.init1)) |
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*(.init2) /* Clear __zero_reg__, set up stack pointer. */ |
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KEEP (*(.init2)) |
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*(.init3) |
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KEEP (*(.init3)) |
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*(.init4) /* Initialize data and BSS. */ |
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KEEP (*(.init4)) |
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*(.init5) |
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KEEP (*(.init5)) |
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*(.init6) /* C++ constructors. */ |
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KEEP (*(.init6)) |
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*(.init7) |
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KEEP (*(.init7)) |
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*(.init8) |
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KEEP (*(.init8)) |
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*(.init9) /* Call main(). */ |
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KEEP (*(.init9)) |
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*(.text) |
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. = ALIGN(2); |
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*(.text.*) |
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. = ALIGN(2); |
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*(.fini9) /* _exit() starts here. */ |
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KEEP (*(.fini9)) |
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*(.fini8) |
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KEEP (*(.fini8)) |
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*(.fini7) |
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KEEP (*(.fini7)) |
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*(.fini6) /* C++ destructors. */ |
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KEEP (*(.fini6)) |
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*(.fini5) |
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KEEP (*(.fini5)) |
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*(.fini4) |
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KEEP (*(.fini4)) |
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*(.fini3) |
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KEEP (*(.fini3)) |
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*(.fini2) |
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KEEP (*(.fini2)) |
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*(.fini1) |
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KEEP (*(.fini1)) |
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*(.fini0) /* Infinite loop after program termination. */ |
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KEEP (*(.fini0)) |
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_etext = . ; |
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} > text |
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.data : AT (ADDR (.text) + SIZEOF (.text)) |
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{ |
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PROVIDE (__data_start = .) ; |
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*(.data) |
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*(.data*) |
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*(.rodata) /* We need to include .rodata here if gcc is used */ |
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*(.rodata*) /* with -fdata-sections. */ |
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*(.gnu.linkonce.d*) |
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. = ALIGN(2); |
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_edata = . ; |
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PROVIDE (__data_end = .) ; |
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} > data |
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.bss : AT (ADDR (.bss)) |
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{ |
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PROVIDE (__bss_start = .) ; |
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*(.bss) |
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*(.bss*) |
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*(COMMON) |
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PROVIDE (__bss_end = .) ; |
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} > data |
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__data_load_start = LOADADDR(.data); |
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__data_load_end = __data_load_start + SIZEOF(.data); |
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/* Global data not cleared after reset. */ |
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.noinit : |
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{ |
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PROVIDE (__noinit_start = .) ; |
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*(.noinit*) |
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PROVIDE (__noinit_end = .) ; |
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_end = . ; |
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PROVIDE (__heap_start = .) ; |
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} > data |
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/* keymap region is located at end of flash |
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* .fn_actions Fn actions definitions |
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* .keymaps Mapping layers |
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*/ |
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.keymap : |
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{ |
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PROVIDE(__keymap_start = .) ; |
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*(.keymap.fn_actions) /* 32*actions = 64bytes */ |
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. = ALIGN(0x40); |
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*(.keymap.keymaps) /* rest of .keymap section */ |
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*(.keymap*) |
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/* . = ALIGN(0x800); */ /* keymap section takes 2KB- */ |
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} > keymap = 0x00 /* zero fill */ |
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.eeprom : |
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{ |
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*(.eeprom*) |
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__eeprom_end = . ; |
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} > eeprom |
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.fuse : |
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{ |
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KEEP(*(.fuse)) |
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KEEP(*(.lfuse)) |
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KEEP(*(.hfuse)) |
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KEEP(*(.efuse)) |
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} > fuse |
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.lock : |
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{ |
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KEEP(*(.lock*)) |
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} > lock |
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.signature : |
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{ |
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KEEP(*(.signature*)) |
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} > signature |
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/* Stabs debugging sections. */ |
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.stab 0 : { *(.stab) } |
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.stabstr 0 : { *(.stabstr) } |
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.stab.excl 0 : { *(.stab.excl) } |
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.stab.exclstr 0 : { *(.stab.exclstr) } |
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.stab.index 0 : { *(.stab.index) } |
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.stab.indexstr 0 : { *(.stab.indexstr) } |
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.comment 0 : { *(.comment) } |
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/* DWARF debug sections. |
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Symbols in the DWARF debugging sections are relative to the beginning |
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of the section so we begin them at 0. */ |
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/* DWARF 1 */ |
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.debug 0 : { *(.debug) } |
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.line 0 : { *(.line) } |
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/* GNU DWARF 1 extensions */ |
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.debug_srcinfo 0 : { *(.debug_srcinfo) } |
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.debug_sfnames 0 : { *(.debug_sfnames) } |
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/* DWARF 1.1 and DWARF 2 */ |
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.debug_aranges 0 : { *(.debug_aranges) } |
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.debug_pubnames 0 : { *(.debug_pubnames) } |
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/* DWARF 2 */ |
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.debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } |
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.debug_abbrev 0 : { *(.debug_abbrev) } |
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.debug_line 0 : { *(.debug_line) } |
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.debug_frame 0 : { *(.debug_frame) } |
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.debug_str 0 : { *(.debug_str) } |
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.debug_loc 0 : { *(.debug_loc) } |
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.debug_macinfo 0 : { *(.debug_macinfo) } |
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} |
tmk
8 years ago