Wolfgang Thallergcc16 merge934c3885 months agoHistory
440 lines · 13.0 KB · Scala
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# Copyright (C) 2014-2026 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 "$ENTRY" && ENTRY=_starttest -z "${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}:${MACHINE}; fitest "$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).  */}${RELOCATING-/* Linker script for 68HC12 object file (ld -r).  */} /* Copyright (C) 2014-2026 Free Software Foundation, Inc.    Copying and distribution of this script, with or without modification,   are permitted in any medium without royalty provided the copyright   notice and this notice are preserved.  */ OUTPUT_FORMAT("${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}}EOF source_sh $srcdir/scripttempl/misc-sections.scsource_sh $srcdir/scripttempl/DWARF.sc cat <<EOF}EOF

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