binutils-gdb/ld/emulparams/elf32bmip.sh
Alan Modra 2bf2bf23da ELF ld -r scripts
"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.
2018-10-13 20:33:23 +10:30

79 lines
3.0 KiB
Bash

# If you change this file, please also look at files which source this one:
# elf32b4300.sh elf32bsmip.sh elf32btsmip.sh elf32ebmip.sh elf32lmip.sh
# elf32ebmipvxworks.sh elf32elmipvxworks.sh
SCRIPT_NAME=elf
OUTPUT_FORMAT="elf32-bigmips"
BIG_OUTPUT_FORMAT="elf32-bigmips"
LITTLE_OUTPUT_FORMAT="elf32-littlemips"
TEXT_START_ADDR=0x0400000
test -n "${EMBEDDED}" || DATA_ADDR=0x10000000
MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
SHLIB_TEXT_START_ADDR=0x5ffe0000
TEXT_DYNAMIC=
INITIAL_READONLY_SECTIONS=
if test -z "${CREATE_SHLIB}"; then
INITIAL_READONLY_SECTIONS=".interp ${RELOCATING-0} : { *(.interp) }"
fi
INITIAL_READONLY_SECTIONS="${INITIAL_READONLY_SECTIONS}
.MIPS.abiflags ${RELOCATING-0} : { *(.MIPS.abiflags) }
.reginfo ${RELOCATING-0} : { *(.reginfo) }
"
OTHER_TEXT_SECTIONS='*(.mips16.fn.*) *(.mips16.call.*)'
# Unlike most targets, the MIPS backend puts all dynamic relocations
# in a single dynobj section, which it also calls ".rel.dyn". It does
# this so that it can easily sort all dynamic relocations before the
# output section has been populated.
OTHER_GOT_RELOC_SECTIONS="
.rel.dyn ${RELOCATING-0} : { *(.rel.dyn) }
"
# If the output has a GOT section, there must be exactly 0x7ff0 bytes
# between .got and _gp.
OTHER_GOT_SYMBOLS='HIDDEN (_gp = ALIGN (16) + 0x7ff0);'
# .got.plt is only used for the PLT psABI extension. It should not be
# included in the .sdata block with .got, as there is no need to access
# the section from _gp. Note that the traditional:
#
# . = .
# _gp = ALIGN (16) + 0x7ff0;
# .got : { *(.got.plt) *(.got) }
#
# would set _gp to the wrong value; _gp - 0x7ff0 must point to the start
# of *(.got).
GOT=".got ${RELOCATING-0} : { *(.got) }"
unset OTHER_READWRITE_SECTIONS
unset OTHER_RELRO_SECTIONS
if test -n "$RELRO_NOW"; then
OTHER_RELRO_SECTIONS=".got.plt ${RELOCATING-0} : { *(.got.plt) }"
else
OTHER_READWRITE_SECTIONS=".got.plt ${RELOCATING-0} : { *(.got.plt) }"
fi
OTHER_SDATA_SECTIONS="
.lit8 ${RELOCATING-0} : { *(.lit8) }
.lit4 ${RELOCATING-0} : { *(.lit4) }
"
TEXT_START_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_ftext = .${CREATE_SHLIB+)};"
DATA_START_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_fdata = .${CREATE_SHLIB+)};"
OTHER_BSS_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_fbss = .${CREATE_SHLIB+)};"
OTHER_SECTIONS="
.gptab.sdata : {${RELOCATING+ *(.gptab.data)} *(.gptab.sdata) }
.gptab.sbss : {${RELOCATING+ *(.gptab.bss)} *(.gptab.sbss) }
.mdebug.abi32 0 : { KEEP(*(.mdebug.abi32)) }
.mdebug.abiN32 0 : { KEEP(*(.mdebug.abiN32)) }
.mdebug.abi64 0 : { KEEP(*(.mdebug.abi64)) }
.mdebug.abiO64 0 : { KEEP(*(.mdebug.abiO64)) }
.mdebug.eabi32 0 : { KEEP(*(.mdebug.eabi32)) }
.mdebug.eabi64 0 : { KEEP(*(.mdebug.eabi64)) }
.gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) }
.gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) }
"
ARCH=mips
MACHINE=
TEMPLATE_NAME=elf32
EXTRA_EM_FILE=mipself
GENERATE_SHLIB_SCRIPT=yes
GENERATE_PIE_SCRIPT=yes