mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
f726cc1cb6
PR ld/21849 * scripttempl/avr.sc: Split .progmemx.* from .progmem.* and locate former at a higher address.
343 lines
10 KiB
Python
343 lines
10 KiB
Python
# Copyright (C) 2014-2017 Free Software Foundation, Inc.
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#
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# Copying and distribution of this file, with or without modification,
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# are permitted in any medium without royalty provided the copyright
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# notice and this notice are preserved.
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# RODATA_PM_OFFSET
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# If empty, .rodata sections will be part of .data. This is for
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# devices where it is not possible to use LD* instructions to read
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# from flash.
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#
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# If non-empty, .rodata is not part of .data and the .rodata
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# objects are assigned addresses at an offest of RODATA_PM_OFFSET.
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# This is for devices that feature reading from flash by means of
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# LD* instructions, provided the addresses are offset by
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# __RODATA_PM_OFFSET__ (which defaults to RODATA_PM_OFFSET).
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cat <<EOF
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/* Copyright (C) 2014-2017 Free Software Foundation, Inc.
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Copying and distribution of this script, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved. */
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OUTPUT_FORMAT("${OUTPUT_FORMAT}","${OUTPUT_FORMAT}","${OUTPUT_FORMAT}")
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OUTPUT_ARCH(${ARCH})
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__TEXT_REGION_LENGTH__ = DEFINED(__TEXT_REGION_LENGTH__) ? __TEXT_REGION_LENGTH__ : $TEXT_LENGTH;
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__DATA_REGION_LENGTH__ = DEFINED(__DATA_REGION_LENGTH__) ? __DATA_REGION_LENGTH__ : $DATA_LENGTH;
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${EEPROM_LENGTH+__EEPROM_REGION_LENGTH__ = DEFINED(__EEPROM_REGION_LENGTH__) ? __EEPROM_REGION_LENGTH__ : $EEPROM_LENGTH;}
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__FUSE_REGION_LENGTH__ = DEFINED(__FUSE_REGION_LENGTH__) ? __FUSE_REGION_LENGTH__ : $FUSE_LENGTH;
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__LOCK_REGION_LENGTH__ = DEFINED(__LOCK_REGION_LENGTH__) ? __LOCK_REGION_LENGTH__ : $LOCK_LENGTH;
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__SIGNATURE_REGION_LENGTH__ = DEFINED(__SIGNATURE_REGION_LENGTH__) ? __SIGNATURE_REGION_LENGTH__ : $SIGNATURE_LENGTH;
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${USER_SIGNATURE_LENGTH+__USER_SIGNATURE_REGION_LENGTH__ = DEFINED(__USER_SIGNATURE_REGION_LENGTH__) ? __USER_SIGNATURE_REGION_LENGTH__ : $USER_SIGNATURE_LENGTH;}
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${RODATA_PM_OFFSET+__RODATA_PM_OFFSET__ = DEFINED(__RODATA_PM_OFFSET__) ? __RODATA_PM_OFFSET__ : $RODATA_PM_OFFSET;}
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MEMORY
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{
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text (rx) : ORIGIN = 0, LENGTH = __TEXT_REGION_LENGTH__
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data (rw!x) : ORIGIN = $DATA_ORIGIN, LENGTH = __DATA_REGION_LENGTH__
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${EEPROM_LENGTH+ eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = __EEPROM_REGION_LENGTH__}
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$FUSE_NAME (rw!x) : ORIGIN = 0x820000, LENGTH = __FUSE_REGION_LENGTH__
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lock (rw!x) : ORIGIN = 0x830000, LENGTH = __LOCK_REGION_LENGTH__
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signature (rw!x) : ORIGIN = 0x840000, LENGTH = __SIGNATURE_REGION_LENGTH__
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${USER_SIGNATURE_LENGTH+ user_signatures (rw!x) : ORIGIN = 0x850000, LENGTH = __USER_SIGNATURE_REGION_LENGTH__}
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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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${TEXT_DYNAMIC+${DYNAMIC}}
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.hash ${RELOCATING-0} : { *(.hash) }
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.dynsym ${RELOCATING-0} : { *(.dynsym) }
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.dynstr ${RELOCATING-0} : { *(.dynstr) }
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.gnu.version ${RELOCATING-0} : { *(.gnu.version) }
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.gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) }
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.gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) }
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.rel.init ${RELOCATING-0} : { *(.rel.init) }
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.rela.init ${RELOCATING-0} : { *(.rela.init) }
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.rel.text ${RELOCATING-0} :
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{
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*(.rel.text)
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${RELOCATING+*(.rel.text.*)}
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${RELOCATING+*(.rel.gnu.linkonce.t*)}
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}
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.rela.text ${RELOCATING-0} :
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{
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*(.rela.text)
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${RELOCATING+*(.rela.text.*)}
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${RELOCATING+*(.rela.gnu.linkonce.t*)}
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}
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.rel.fini ${RELOCATING-0} : { *(.rel.fini) }
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.rela.fini ${RELOCATING-0} : { *(.rela.fini) }
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.rel.rodata ${RELOCATING-0} :
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{
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*(.rel.rodata)
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${RELOCATING+*(.rel.rodata.*)}
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${RELOCATING+*(.rel.gnu.linkonce.r*)}
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}
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.rela.rodata ${RELOCATING-0} :
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{
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*(.rela.rodata)
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${RELOCATING+*(.rela.rodata.*)}
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${RELOCATING+*(.rela.gnu.linkonce.r*)}
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}
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.rel.data ${RELOCATING-0} :
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{
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*(.rel.data)
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${RELOCATING+*(.rel.data.*)}
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${RELOCATING+*(.rel.gnu.linkonce.d*)}
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}
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.rela.data ${RELOCATING-0} :
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{
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*(.rela.data)
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${RELOCATING+*(.rela.data.*)}
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${RELOCATING+*(.rela.gnu.linkonce.d*)}
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}
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.rel.ctors ${RELOCATING-0} : { *(.rel.ctors) }
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.rela.ctors ${RELOCATING-0} : { *(.rela.ctors) }
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.rel.dtors ${RELOCATING-0} : { *(.rel.dtors) }
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.rela.dtors ${RELOCATING-0} : { *(.rela.dtors) }
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.rel.got ${RELOCATING-0} : { *(.rel.got) }
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.rela.got ${RELOCATING-0} : { *(.rela.got) }
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.rel.bss ${RELOCATING-0} : { *(.rel.bss) }
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.rela.bss ${RELOCATING-0} : { *(.rela.bss) }
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.rel.plt ${RELOCATING-0} : { *(.rel.plt) }
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.rela.plt ${RELOCATING-0} : { *(.rela.plt) }
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/* Internal text space or external memory. */
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.text ${RELOCATING-0} :
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{
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*(.vectors)
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KEEP(*(.vectors))
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/* For data that needs to reside in the lower 64k of progmem. */
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${RELOCATING+ *(.progmem.gcc*)}
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/* PR 13812: Placing the trampolines here gives a better chance
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that they will be in range of the code that uses them. */
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${RELOCATING+. = ALIGN(2);}
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${CONSTRUCTING+ __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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${RELOCATING+ *(.trampolines*)}
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${CONSTRUCTING+ __trampolines_end = . ; }
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/* avr-libc expects these data to reside in lower 64K. */
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${RELOCATING+ *libprintf_flt.a:*(.progmem.data)}
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${RELOCATING+ *libc.a:*(.progmem.data)}
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${RELOCATING+ *(.progmem.*)}
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${RELOCATING+. = ALIGN(2);}
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/* For code that needs to reside in the lower 128k progmem. */
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*(.lowtext)
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${RELOCATING+ *(.lowtext*)}
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${CONSTRUCTING+ __ctors_start = . ; }
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${CONSTRUCTING+ *(.ctors) }
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${CONSTRUCTING+ __ctors_end = . ; }
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${CONSTRUCTING+ __dtors_start = . ; }
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${CONSTRUCTING+ *(.dtors) }
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${CONSTRUCTING+ __dtors_end = . ; }
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KEEP(SORT(*)(.ctors))
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KEEP(SORT(*)(.dtors))
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/* From this point on, we don't bother about wether the insns are
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below or above the 16 bits boundary. */
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*(.init0) /* Start here after reset. */
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KEEP (*(.init0))
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*(.init1)
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KEEP (*(.init1))
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*(.init2) /* Clear __zero_reg__, set up stack pointer. */
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KEEP (*(.init2))
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*(.init3)
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KEEP (*(.init3))
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*(.init4) /* Initialize data and BSS. */
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KEEP (*(.init4))
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*(.init5)
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KEEP (*(.init5))
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*(.init6) /* C++ constructors. */
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KEEP (*(.init6))
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*(.init7)
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KEEP (*(.init7))
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*(.init8)
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KEEP (*(.init8))
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*(.init9) /* Call main(). */
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KEEP (*(.init9))
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*(.text)
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${RELOCATING+. = ALIGN(2);}
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${RELOCATING+ *(.text.*)}
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${RELOCATING+. = 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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/* For code that needs not to reside in the lower progmem. */
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*(.hightext)
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${RELOCATING+ *(.hightext*)}
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${RELOCATING+ *(.progmemx.*)}
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${RELOCATING+. = ALIGN(2);}
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/* For tablejump instruction arrays. We don't relax
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JMP / CALL instructions within these sections. */
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*(.jumptables)
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${RELOCATING+ *(.jumptables*)}
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${RELOCATING+ _etext = . ; }
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} ${RELOCATING+ > text}
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EOF
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# Devices like ATtiny816 allow to read from flash memory by means of LD*
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# instructions provided we add an offset of __RODATA_PM_OFFSET__ to the
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# flash addresses.
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if test -n "$RODATA_PM_OFFSET"; then
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cat <<EOF
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.rodata ${RELOCATING+ ADDR(.text) + SIZEOF (.text) + __RODATA_PM_OFFSET__ } ${RELOCATING-0} :
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{
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*(.rodata)
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${RELOCATING+ *(.rodata*)}
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*(.gnu.linkonce.r*)
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} ${RELOCATING+AT> text}
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EOF
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fi
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cat <<EOF
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.data ${RELOCATING-0} :
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{
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${RELOCATING+ PROVIDE (__data_start = .) ; }
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*(.data)
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${RELOCATING+ *(.data*)}
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*(.gnu.linkonce.d*)
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EOF
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# Classical devices that don't show flash memory in the SRAM address space
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# need .rodata to be part of .data because the compiler will use LD*
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# instructions and LD* cannot access flash.
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if test -z "$RODATA_PM_OFFSET"; then
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cat <<EOF
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*(.rodata) /* We need to include .rodata here if gcc is used */
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${RELOCATING+ *(.rodata*)} /* with -fdata-sections. */
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*(.gnu.linkonce.r*)
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EOF
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fi
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cat <<EOF
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${RELOCATING+. = ALIGN(2);}
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${RELOCATING+ _edata = . ; }
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${RELOCATING+ PROVIDE (__data_end = .) ; }
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} ${RELOCATING+ > data ${RELOCATING+AT> text}}
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.bss ${RELOCATING+ ADDR(.data) + SIZEOF (.data)} ${RELOCATING-0} :${RELOCATING+ AT (ADDR (.bss))}
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{
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${RELOCATING+ PROVIDE (__bss_start = .) ; }
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*(.bss)
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${RELOCATING+ *(.bss*)}
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*(COMMON)
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${RELOCATING+ PROVIDE (__bss_end = .) ; }
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} ${RELOCATING+ > data}
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${RELOCATING+ __data_load_start = LOADADDR(.data); }
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${RELOCATING+ __data_load_end = __data_load_start + SIZEOF(.data); }
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/* Global data not cleared after reset. */
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.noinit ${RELOCATING+ ADDR(.bss) + SIZEOF (.bss)} ${RELOCATING-0}: ${RELOCATING+ AT (ADDR (.noinit))}
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{
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${RELOCATING+ PROVIDE (__noinit_start = .) ; }
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*(.noinit*)
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${RELOCATING+ PROVIDE (__noinit_end = .) ; }
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${RELOCATING+ _end = . ; }
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${RELOCATING+ PROVIDE (__heap_start = .) ; }
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} ${RELOCATING+ > data}
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EOF
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if test -n "${EEPROM_LENGTH}"; then
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cat <<EOF
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.eeprom ${RELOCATING-0}:
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{
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/* See .data above... */
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KEEP(*(.eeprom*))
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${RELOCATING+ __eeprom_end = . ; }
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} ${RELOCATING+ > eeprom}
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EOF
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fi
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if test "$FUSE_NAME" = "fuse" ; then
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cat <<EOF
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.fuse ${RELOCATING-0}:
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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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} ${RELOCATING+ > fuse}
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EOF
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fi
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cat <<EOF
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.lock ${RELOCATING-0}:
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{
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KEEP(*(.lock*))
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} ${RELOCATING+ > lock}
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.signature ${RELOCATING-0}:
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{
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KEEP(*(.signature*))
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} ${RELOCATING+ > signature}
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EOF
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if test "$FUSE_NAME" = "config" ; then
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cat <<EOF
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.config ${RELOCATING-0}:
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{
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KEEP(*(.config*))
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} ${RELOCATING+ > config}
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EOF
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fi
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cat <<EOF
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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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.note.gnu.build-id : { *(.note.gnu.build-id) }
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EOF
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. $srcdir/scripttempl/DWARF.sc
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cat <<EOF
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}
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EOF
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