Add ld script for keymap section
tmk
11 years ago
parent
60103a12b2
commit
f7395268c0
@ -0,0 +1,268 @@
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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:5)
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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 = 128K
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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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}
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