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"ld -r" generally should not combine object file sections with
different names. For example, "ld -r" should not combine ".text",
".text.hot" and ".text.cold" into an output ".text" section. An
exception needs to be made for linker created sections, for example,
branch trampoline sections that might be created even for ld -r.
"ld -r" also should not define symbols in linker scripts. Any
definitions are likely to conflict with those defined at final link.
A MEMORY spec is also not needed for ld -r.
* Makefile.am (eelf32btsmip_fbsd.c, eelf32btsmipn32_fbsd.c),
(eelf32epiphany.c, eelf32epiphany_4x4.c, eelf32ltsmip_fbsd.c),
(eelf32ltsmipn32_fbsd.c, eelf32xc16x.c, eelf32xc16xl.c),
(eelf32xc16xs.c, emcorepe.c, enios2elf.c, enios2linux.c),
(eelf64btsmip_fbsd.c, eelf64ltsmip_fbsd.c): Correct dependencies.
* Makefile.in: Regenerate.
* emulparams/aarch64cloudabi.sh, * emulparams/aarch64fbsd.sh,
* emulparams/aarch64linux.sh, * emulparams/aarch64linux32.sh,
* emulparams/arc-nps.sh, * emulparams/elf32_spu.sh,
* emulparams/elf32_tic6x_le.sh, * emulparams/elf32bmip.sh,
* emulparams/elf32btsmipn32.sh, * emulparams/elf32lr5900n32.sh,
* emulparams/elf32mep.sh, * emulparams/elf32metag.sh,
* emulparams/elf64btsmip.sh, * emulparams/shelf_vxworks.sh,
* emulparams/shlelf_fd.sh, * scripttempl/DWARF.sc,
* scripttempl/alpha.sc, * scripttempl/alphavms.sc,
* scripttempl/arclinux.sc, * scripttempl/armbpabi.sc,
* scripttempl/avr.sc, * scripttempl/dlx.sc, * scripttempl/elf.sc,
* scripttempl/elf32cr16.sc, * scripttempl/elf32cr16c.sc,
* scripttempl/elf32crx.sc, * scripttempl/elf32msp430.sc,
* scripttempl/elf32msp430_3.sc, * scripttempl/elf32xc16x.sc,
* scripttempl/elf32xc16xl.sc, * scripttempl/elf32xc16xs.sc,
* scripttempl/elf64hppa.sc, * scripttempl/elf_chaos.sc,
* scripttempl/elfarc.sc, * scripttempl/elfarcv2.sc,
* scripttempl/elfd10v.sc, * scripttempl/elfd30v.sc,
* scripttempl/elfm68hc11.sc, * scripttempl/elfm68hc12.sc,
* scripttempl/elfm9s12z.sc, * scripttempl/elfmicroblaze.sc,
* scripttempl/elfxgate.sc, * scripttempl/elfxtensa.sc,
* scripttempl/epiphany_4x4.sc, * scripttempl/ft32.sc,
* scripttempl/hppaelf.sc, * scripttempl/ia64vms.sc,
* scripttempl/ip2k.sc, * scripttempl/iq2000.sc,
* scripttempl/mep.sc, * scripttempl/mmo.sc,
* scripttempl/nds32elf.sc, * scripttempl/pru.sc,
* scripttempl/sh.sc, * scripttempl/v850.sc,
* scripttempl/v850_rh850.sc, * scripttempl/visium.sc,
* scripttempl/xstormy16.sc: Condition various parts of scripts on
${RELOCATABLE} in order to prevent ld -r merging sections or
defining symbols. Remove MEMORY and VERSION definitions from
ld -r scripts too.
* testsuite/ld-elf/group2.d, * testsuite/ld-elf/group4.d,
* testsuite/ld-elf/group5.d, * testsuite/ld-elf/group6.d,
* testsuite/ld-elf/group7.d, * testsuite/ld-elf/group8a.d,
* testsuite/ld-elf/group8b.d, * testsuite/ld-elf/group9a.d,
* testsuite/ld-elf/group9b.d, * testsuite/ld-elf/pr17550a.d,
* testsuite/ld-elf/pr17550b.d,
* testsuite/ld-elf/pr17550d.d: Don't xfail cr16 and crx.
* testsuite/ld-elf/init-fini-arrays.d,
* testsuite/ld-elf/pr22677.d: Likewise, and dont' xfail mep.
67 lines
3.1 KiB
Scala
67 lines
3.1 KiB
Scala
# Linker Script for National Semiconductor's CR16C-ELF32.
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#
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# Copyright (C) 2014-2018 Free Software Foundation, Inc.
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#
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# Copying and distribution of this file, with or without modification,
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# are permitted in any medium without royalty provided the copyright
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# notice and this notice are preserved.
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# Using an empty script for ld -r is better than mashing together
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# sections. This hack likely leaves ld -Ur broken.
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test -n "${RELOCATING}" || exit 0
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test -z "$ENTRY" && ENTRY=_start
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cat <<EOF
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/* Example Linker Script for linking NS CR16C or CR16CPlus
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elf32 files, which were compiled with either the near data
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model or the default data model.
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Copyright (C) 2014-2018 Free Software Foundation, Inc.
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Copying and distribution of this script, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved. */
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EOF
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test -n "${RELOCATING}" && cat <<EOF
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ENTRY(${ENTRY})
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MEMORY
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{
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near_rom : ORIGIN = 0x4, LENGTH = 512K - 4
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near_ram : ORIGIN = 512K, LENGTH = 512K - 64K
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rom : ORIGIN = 1M, LENGTH = 3M
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ram : ORIGIN = 4M, LENGTH = 10M
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}
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EOF
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cat <<EOF
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SECTIONS
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{
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/* The heap is located in near memory, to suit both the near and
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default data models. The heap and stack are aligned to the bus
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width, as a speed optimization for accessing data located
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there. The alignment to 4 bytes is compatible for both the CR16C
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bus width (2 bytes) and CR16CPlus bus width (4 bytes). */
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.text : { __TEXT_START = .; *(.text) __TEXT_END = .; }${RELOCATING+ > rom}
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.rdata : { __RDATA_START = .; *(.rdata_4) *(.rdata_2) *(.rdata_1) __RDATA_END = .; }${RELOCATING+ > near_rom}
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.ctor ALIGN(4) : { __CTOR_LIST = .; *(.ctors) __CTOR_END = .; }${RELOCATING+ > near_rom}
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.dtor ALIGN(4) : { __DTOR_LIST = .; *(.dtors) __DTOR_END = .; }${RELOCATING+ > near_rom}
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.data : { __DATA_START = .; *(.data_4) *(.data_2) *(.data_1) *(.data) __DATA_END = .; }${RELOCATING+ > ram AT > rom}
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.bss (NOLOAD) : { __BSS_START = .; *(.bss_4) *(.bss_2) *(.bss_1) *(.bss) *(COMMON) __BSS_END = .; }${RELOCATING+ > ram}
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.nrdata : { __NRDATA_START = .; *(.nrdat_4) *(.nrdat_2) *(.nrdat_1) __NRDATA_END = .; }${RELOCATING+ > near_rom}
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.ndata : { __NDATA_START = .; *(.ndata_4) *(.ndata_2) *(.ndata_1) __NDATA_END = .; }${RELOCATING+ > near_ram AT > rom}
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.nbss (NOLOAD) : { __NBSS_START = .; *(.nbss_4) *(.nbss_2) *(.nbss_1) *(.ncommon) __NBSS_END = .; }${RELOCATING+ > near_ram}
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.heap (NOLOAD) : { . = ALIGN(4); __HEAP_START = .; . += 0x2000; __HEAP_MAX = .; }${RELOCATING+ > near_ram}
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.stack (NOLOAD) : { . = ALIGN(4); . += 0x6000; __STACK_START = .; }${RELOCATING+ > ram}
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.istack (NOLOAD) : { . = ALIGN(2); . += 0x100; __ISTACK_START = .; }${RELOCATING+ > ram}
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}
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${RELOCATING+__DATA_IMAGE_START = LOADADDR(.data);}
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${RELOCATING+__NDATA_IMAGE_START = LOADADDR(.ndata);}
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EOF
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