| # Copyright (C) 2014-2021 Free Software Foundation, Inc. |
| # |
| # Copying and distribution of this file, with or without modification, |
| # are permitted in any medium without royalty provided the copyright |
| # notice and this notice are preserved. |
| # |
| # Unusual variables checked by this code: |
| # NOP - four byte opcode for no-op (defaults to 0) |
| # DATA_ADDR - if end-of-text-plus-one-page isn't right for data start |
| # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... |
| # (e.g., .PARISC.global) |
| # OTHER_SECTIONS - at the end |
| # EXECUTABLE_SYMBOLS - symbols that must be defined for an |
| # executable (e.g., _DYNAMIC_LINK) |
| # TEXT_START_SYMBOLS - symbols that appear at the start of the |
| # .text section. |
| # DATA_START_SYMBOLS - symbols that appear at the start of the |
| # .data section. |
| # OTHER_BSS_SYMBOLS - symbols that appear at the start of the |
| # .bss section besides __bss_start. |
| # EMBEDDED - whether this is for an embedded system. |
| # |
| # When adding sections, do note that the names of some sections are used |
| # when specifying the start address of the next. |
| # |
| test -z "$ENTRY" && ENTRY=_start |
| test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} |
| test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} |
| if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi |
| test "$LD_FLAG" = "N" && DATA_ADDR=. |
| |
| CTOR=".ctors ${CONSTRUCTING-0} : |
| { |
| ${CONSTRUCTING+ PROVIDE (__CTOR_LIST__ = .); } |
| ${CONSTRUCTING+${CTOR_START}} |
| KEEP (*(.ctors)) |
| |
| ${CONSTRUCTING+${CTOR_END}} |
| ${CONSTRUCTING+ PROVIDE(__CTOR_END__ = .); } |
| } ${RELOCATING+ > ${TEXT_MEMORY}}" |
| |
| DTOR=" .dtors ${CONSTRUCTING-0} : |
| { |
| ${CONSTRUCTING+ PROVIDE(__DTOR_LIST__ = .); } |
| KEEP (*(.dtors)) |
| ${CONSTRUCTING+ PROVIDE(__DTOR_END__ = .); } |
| } ${RELOCATING+ > ${TEXT_MEMORY}}" |
| |
| |
| VECTORS=" |
| /* If the 'vectors_addr' symbol is defined, it indicates the start address |
| of interrupt vectors. This depends on the 68HC11 operating mode: |
| |
| Addr |
| Single chip 0xffc0 |
| Extended mode 0xffc0 |
| Bootstrap 0x00c0 |
| Test 0xbfc0 |
| |
| In general, the vectors address is 0xffc0. This can be overriden |
| with the '-defsym vectors_addr=0xbfc0' ld option. |
| |
| Note: for the bootstrap mode, the interrupt vectors are at 0xbfc0 but |
| they are redirected to 0x00c0 by the internal PROM. Application's vectors |
| must also consist of jump instructions (see Motorola's manual). */ |
| |
| PROVIDE (_vectors_addr = DEFINED (vectors_addr) ? vectors_addr : 0xffc0); |
| .vectors DEFINED (vectors_addr) ? vectors_addr : 0xffc0 : |
| { |
| KEEP (*(.vectors)) |
| }" |
| |
| # |
| # We provide two emulations: a fixed on that defines some memory banks |
| # and a configurable one that includes a user provided memory definition. |
| # |
| case $GENERIC_BOARD in |
| yes|1|YES) |
| MEMORY_DEF=" |
| /* Get memory banks definition from some user configuration file. |
| This file must be located in some linker directory (search path |
| with -L<dir>). See fixed memory banks emulation script. */ |
| INCLUDE memory.x; |
| " |
| ;; |
| *) |
| MEMORY_DEF=" |
| /* Fixed definition of the available memory banks. |
| See generic emulation script for a user defined configuration. */ |
| MEMORY |
| { |
| page0 (rwx) : ORIGIN = 0x0, LENGTH = 256 |
| text (rx) : ORIGIN = ${ROM_START_ADDR}, LENGTH = ${ROM_SIZE} |
| data : ORIGIN = ${RAM_START_ADDR}, LENGTH = ${RAM_SIZE} |
| eeprom : ORIGIN = ${EEPROM_START_ADDR}, LENGTH = ${EEPROM_SIZE} |
| } |
| |
| /* Setup the stack on the top of the data memory bank. */ |
| PROVIDE (_stack = ${RAM_START_ADDR} + ${RAM_SIZE} - 1); |
| " |
| ;; |
| esac |
| |
| STARTUP_CODE=" |
| /* Startup code. */ |
| KEEP (*(.install0)) /* Section should setup the stack pointer. */ |
| KEEP (*(.install1)) /* Place holder for applications. */ |
| KEEP (*(.install2)) /* Optional installation of data sections in RAM. */ |
| KEEP (*(.install3)) /* Place holder for applications. */ |
| KEEP (*(.install4)) /* Section that calls the main. */ |
| " |
| |
| FINISH_CODE=" |
| /* Finish code. */ |
| KEEP (*(.fini0)) /* Beginning of finish code (_exit symbol). */ |
| KEEP (*(.fini1)) /* Place holder for applications. */ |
| KEEP (*(.fini2)) /* C++ destructors. */ |
| KEEP (*(.fini3)) /* Place holder for applications. */ |
| KEEP (*(.fini4)) /* Runtime exit. */ |
| " |
| |
| PRE_COMPUTE_DATA_SIZE=" |
| /* SCz: this does not work yet... This is supposed to force the loading |
| of _map_data.o (from libgcc.a) when the .data section is not empty. |
| By doing so, this should bring the code that copies the .data section |
| from ROM to RAM at init time. |
| |
| ___pre_comp_data_size = SIZEOF(.data); |
| __install_data_sections = ___pre_comp_data_size > 0 ? |
| __map_data_sections : 0; |
| */ |
| " |
| |
| INSTALL_RELOC=" |
| .install0 0 : { *(.install0) } |
| .install1 0 : { *(.install1) } |
| .install2 0 : { *(.install2) } |
| .install3 0 : { *(.install3) } |
| .install4 0 : { *(.install4) } |
| " |
| |
| FINISH_RELOC=" |
| .fini0 0 : { *(.fini0) } |
| .fini1 0 : { *(.fini1) } |
| .fini2 0 : { *(.fini2) } |
| .fini3 0 : { *(.fini3) } |
| .fini4 0 : { *(.fini4) } |
| " |
| |
| BSS_DATA_RELOC=" |
| .data1 0 : { *(.data1) } |
| |
| /* We want the small data sections together, so single-instruction offsets |
| can access them all, and initialized data all before uninitialized, so |
| we can shorten the on-disk segment size. */ |
| .sdata 0 : { *(.sdata) } |
| .sbss 0 : { *(.sbss) } |
| .scommon 0 : { *(.scommon) } |
| " |
| |
| SOFT_REGS_RELOC=" |
| .softregs 0 : { *(.softregs) } |
| " |
| |
| cat <<EOF |
| ${RELOCATING+/* Linker script for 68HC12 executable (PROM). */} |
| ${RELOCATING-/* Linker script for 68HC12 object file (ld -r). */} |
| |
| /* Copyright (C) 2014-2021 Free Software Foundation, Inc. |
| |
| Copying and distribution of this script, with or without modification, |
| are permitted in any medium without royalty provided the copyright |
| notice and this notice are preserved. */ |
| |
| OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", |
| "${LITTLE_OUTPUT_FORMAT}") |
| OUTPUT_ARCH(${OUTPUT_ARCH}) |
| ${RELOCATING+ENTRY(${ENTRY})} |
| |
| ${RELOCATING+${LIB_SEARCH_DIRS}} |
| ${RELOCATING+${EXECUTABLE_SYMBOLS}} |
| ${RELOCATING+${MEMORY_DEF}} |
| |
| SECTIONS |
| { |
| .hash ${RELOCATING-0} : { *(.hash) } |
| .dynsym ${RELOCATING-0} : { *(.dynsym) } |
| .dynstr ${RELOCATING-0} : { *(.dynstr) } |
| .gnu.version ${RELOCATING-0} : { *(.gnu.version) } |
| .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } |
| .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } |
| |
| .rel.text ${RELOCATING-0} : |
| { |
| *(.rel.text) |
| ${RELOCATING+*(.rel.text.*)} |
| ${RELOCATING+*(.rel.gnu.linkonce.t.*)} |
| } |
| .rela.text ${RELOCATING-0} : |
| { |
| *(.rela.text) |
| ${RELOCATING+*(.rela.text.*)} |
| ${RELOCATING+*(.rela.gnu.linkonce.t.*)} |
| } |
| .rel.data ${RELOCATING-0} : |
| { |
| *(.rel.data) |
| ${RELOCATING+*(.rel.data.*)} |
| ${RELOCATING+*(.rel.gnu.linkonce.d.*)} |
| } |
| .rela.data ${RELOCATING-0} : |
| { |
| *(.rela.data) |
| ${RELOCATING+*(.rela.data.*)} |
| ${RELOCATING+*(.rela.gnu.linkonce.d.*)} |
| } |
| .rel.rodata ${RELOCATING-0} : |
| { |
| *(.rel.rodata) |
| ${RELOCATING+*(.rel.rodata.*)} |
| ${RELOCATING+*(.rel.gnu.linkonce.r.*)} |
| } |
| .rela.rodata ${RELOCATING-0} : |
| { |
| *(.rela.rodata) |
| ${RELOCATING+*(.rela.rodata.*)} |
| ${RELOCATING+*(.rela.gnu.linkonce.r.*)} |
| } |
| .rel.sdata ${RELOCATING-0} : |
| { |
| *(.rel.sdata) |
| ${RELOCATING+*(.rel.sdata.*)} |
| ${RELOCATING+*(.rel.gnu.linkonce.s.*)} |
| } |
| .rela.sdata ${RELOCATING-0} : |
| { |
| *(.rela.sdata) |
| ${RELOCATING+*(.rela.sdata.*)} |
| ${RELOCATING+*(.rela.gnu.linkonce.s.*)} |
| } |
| .rel.sbss ${RELOCATING-0} : |
| { |
| *(.rel.sbss) |
| ${RELOCATING+*(.rel.sbss.*)} |
| ${RELOCATING+*(.rel.gnu.linkonce.sb.*)} |
| } |
| .rela.sbss ${RELOCATING-0} : |
| { |
| *(.rela.sbss) |
| ${RELOCATING+*(.rela.sbss.*)} |
| ${RELOCATING+*(.rel.gnu.linkonce.sb.*)} |
| } |
| .rel.bss ${RELOCATING-0} : |
| { |
| *(.rel.bss) |
| ${RELOCATING+*(.rel.bss.*)} |
| ${RELOCATING+*(.rel.gnu.linkonce.b.*)} |
| } |
| .rela.bss ${RELOCATING-0} : |
| { |
| *(.rela.bss) |
| ${RELOCATING+*(.rela.bss.*)} |
| ${RELOCATING+*(.rela.gnu.linkonce.b.*)} |
| } |
| .rel.stext ${RELOCATING-0} : { *(.rel.stest) } |
| .rela.stext ${RELOCATING-0} : { *(.rela.stest) } |
| .rel.etext ${RELOCATING-0} : { *(.rel.etest) } |
| .rela.etext ${RELOCATING-0} : { *(.rela.etest) } |
| .rel.sdata ${RELOCATING-0} : { *(.rel.sdata) } |
| .rela.sdata ${RELOCATING-0} : { *(.rela.sdata) } |
| .rel.edata ${RELOCATING-0} : { *(.rel.edata) } |
| .rela.edata ${RELOCATING-0} : { *(.rela.edata) } |
| .rel.eit_v ${RELOCATING-0} : { *(.rel.eit_v) } |
| .rela.eit_v ${RELOCATING-0} : { *(.rela.eit_v) } |
| .rel.ebss ${RELOCATING-0} : { *(.rel.ebss) } |
| .rela.ebss ${RELOCATING-0} : { *(.rela.ebss) } |
| .rel.srodata ${RELOCATING-0} : { *(.rel.srodata) } |
| .rela.srodata ${RELOCATING-0} : { *(.rela.srodata) } |
| .rel.erodata ${RELOCATING-0} : { *(.rel.erodata) } |
| .rela.erodata ${RELOCATING-0} : { *(.rela.erodata) } |
| .rel.got ${RELOCATING-0} : { *(.rel.got) } |
| .rela.got ${RELOCATING-0} : { *(.rela.got) } |
| .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) } |
| .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } |
| .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) } |
| .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } |
| .rel.init ${RELOCATING-0} : { *(.rel.init) } |
| .rela.init ${RELOCATING-0} : { *(.rela.init) } |
| .rel.fini ${RELOCATING-0} : { *(.rel.fini) } |
| .rela.fini ${RELOCATING-0} : { *(.rela.fini) } |
| .rel.plt ${RELOCATING-0} : { *(.rel.plt) } |
| .rela.plt ${RELOCATING-0} : { *(.rela.plt) } |
| |
| /* Concatenate .page0 sections. Put them in the page0 memory bank |
| unless we are creating a relocatable file. */ |
| .page0 : |
| { |
| *(.page0) |
| } ${RELOCATING+ > page0} |
| |
| /* Start of text section. */ |
| .stext ${RELOCATING-0} : |
| { |
| *(.stext) |
| } ${RELOCATING+ > ${TEXT_MEMORY}} |
| |
| .init ${RELOCATING-0} : |
| { |
| KEEP (*(SORT_NONE(.init))) |
| } ${RELOCATING+=${NOP-0}} |
| |
| ${RELOCATING-${INSTALL_RELOC}} |
| ${RELOCATING-${FINISH_RELOC}} |
| |
| .text ${RELOCATING-0}: |
| { |
| /* Put startup code at beginning so that _start keeps same address. */ |
| ${RELOCATING+${STARTUP_CODE}} |
| |
| *(.text) |
| ${RELOCATING+*(.text.*)} |
| /* .gnu.warning sections are handled specially by elf.em. */ |
| *(.gnu.warning) |
| ${RELOCATING+*(.gnu.linkonce.t.*)} |
| ${RELOCATING+*(.tramp)} |
| ${RELOCATING+*(.tramp.*)} |
| |
| ${RELOCATING+KEEP (*(SORT_NONE(.fini)))} |
| ${RELOCATING+${FINISH_CODE}} |
| |
| ${RELOCATING+_etext = .;} |
| ${RELOCATING+PROVIDE (etext = .);} |
| ${RELOCATING+. = ALIGN(2);} |
| } ${RELOCATING+ > ${TEXT_MEMORY} =0xa7a7a7a7} |
| |
| .eh_frame ${RELOCATING-0} : |
| { |
| KEEP (*(.eh_frame)) |
| } ${RELOCATING+ > ${TEXT_MEMORY}} |
| |
| .gcc_except_table ${RELOCATING-0} : |
| { |
| *(.gcc_except_table) |
| } ${RELOCATING+ > ${TEXT_MEMORY}} |
| |
| .rodata ${RELOCATING-0} : |
| { |
| *(.rodata) |
| ${RELOCATING+*(.rodata.*)} |
| ${RELOCATING+*(.gnu.linkonce.r*)} |
| ${RELOCATING+. = ALIGN(2);} |
| } ${RELOCATING+ > ${TEXT_MEMORY} =0xffffffff} |
| |
| .rodata1 ${RELOCATING-0} : |
| { |
| *(.rodata1) |
| ${RELOCATING+. = ALIGN(2);} |
| } ${RELOCATING+ > ${TEXT_MEMORY} =0xffffffff} |
| |
| /* Constructor and destructor tables are in ROM. */ |
| ${RELOCATING+${CTOR}} |
| ${RELOCATING+${DTOR}} |
| |
| .jcr ${RELOCATING-0} : |
| { |
| KEEP (*(.jcr)) |
| } ${RELOCATING+ > ${TEXT_MEMORY}} |
| |
| /* Start of the data section image in ROM. */ |
| ${RELOCATING+__data_image = .;} |
| ${RELOCATING+PROVIDE (__data_image = .);} |
| |
| /* All read-only sections that normally go in PROM must be above. |
| We construct the DATA image section in PROM at end of all these |
| read-only sections. The data image must be copied at init time. |
| Refer to GNU ld, Section 3.6.8.2 Output Section LMA. */ |
| .data ${RELOCATING-0} : ${RELOCATING+AT (__data_image)} |
| { |
| ${RELOCATING+__data_section_start = .;} |
| ${RELOCATING+PROVIDE (__data_section_start = .);} |
| |
| ${RELOCATING+${DATA_START_SYMBOLS}} |
| ${RELOCATING+*(.sdata)} |
| *(.data) |
| ${RELOCATING+*(.data.*)} |
| ${RELOCATING+*(.data1)} |
| ${RELOCATING+*(.gnu.linkonce.d.*)} |
| ${CONSTRUCTING+CONSTRUCTORS} |
| |
| ${RELOCATING+_edata = .;} |
| ${RELOCATING+PROVIDE (edata = .);} |
| ${RELOCATING+. = ALIGN(2);} |
| } ${RELOCATING+ > ${DATA_MEMORY} =0xffffffff} |
| |
| ${RELOCATING+__data_section_size = SIZEOF(.data);} |
| ${RELOCATING+PROVIDE (__data_section_size = SIZEOF(.data));} |
| ${RELOCATING+__data_image_end = __data_image + __data_section_size;} |
| |
| ${RELOCATING+${PRE_COMPUTE_DATA_SIZE}} |
| |
| /* .install ${RELOCATING-0}: |
| { |
| . = _data_image_end; |
| } ${RELOCATING+ > ${TEXT_MEMORY}} */ |
| |
| /* Relocation for some bss and data sections. */ |
| ${RELOCATING-${BSS_DATA_RELOC}} |
| ${RELOCATING-${SOFT_REGS_RELOC}} |
| |
| .bss ${RELOCATING-0} : |
| { |
| ${RELOCATING+__bss_start = .;} |
| ${RELOCATING+*(.softregs)} |
| ${RELOCATING+*(.sbss)} |
| ${RELOCATING+*(.scommon)} |
| ${RELOCATING+*(.dynbss)} |
| *(.bss) |
| ${RELOCATING+*(.bss.*)} |
| ${RELOCATING+*(.gnu.linkonce.b.*)} |
| ${RELOCATING+*(COMMON)} |
| ${RELOCATING+PROVIDE (_end = .);} |
| } ${RELOCATING+ > ${DATA_MEMORY}} |
| ${RELOCATING+__bss_size = SIZEOF(.bss);} |
| ${RELOCATING+PROVIDE (__bss_size = SIZEOF(.bss));} |
| |
| .eeprom ${RELOCATING-0} : |
| { |
| *(.eeprom) |
| ${RELOCATING+*(.eeprom.*)} |
| } ${RELOCATING+ > ${EEPROM_MEMORY}} |
| |
| ${RELOCATING+${VECTORS}} |
| |
| /* 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) } |
| |
| EOF |
| |
| . $srcdir/scripttempl/DWARF.sc |
| |
| cat <<EOF |
| } |
| EOF |