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binutils-gdb/ld/emulparams/elf32mipswindiss.sh
Maciej W. Rozycki 2ebd05b80b MIPS/LD: Correct `mips-*-windiss' target emulation configuration
Fix an issue with commit 73934d319d ("Disable .gnu.hash on MIPS
targets"), <https://sourceware.org/ml/binutils/2006-07/msg00341.html>,
which in turn caused a regression with commit 861fb55ab5 ("Defer
allocation of R_MIPS_REL32 GOT slots"),
<https://sourceware.org/ml/binutils/2008-08/msg00096.html>, and use
`mipself.em' as the extra emulation file for `mips-*-windiss' targets,
removing a segmentation fault triggered as `_bfd_mips_elf_final_link'
calls `htab_traverse' to process LA25 stubs with `htab->la25_stubs'
being NULL.  This is in turn due to `_bfd_mips_elf_init_stubs' not
having been called, which is only done by `mipself.em'.  No LA25 stubs
are supposed to be produced for `mips-*-windiss' targets, however the
internal data structures have to be initialized.

	ld/
	* emulparams/elf32mipswindiss.sh (EXTRA_EM_FILE): Set to
	`mipself'.
2018-01-26 23:05:06 +00:00

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TEMPLATE_NAME=elf32
EXTRA_EM_FILE=mipself
SCRIPT_NAME=elf
OUTPUT_FORMAT="elf32-bigmips"
BIG_OUTPUT_FORMAT="elf32-bigmips"
LITTLE_OUTPUT_FORMAT="elf32-littlemips"
ARCH=mips
MACHINE=
EMBEDDED=yes
MAXPAGESIZE=0x40000
# The data below is taken from the windiss.dld linker script that comes with
# the Diab linker.
TEXT_START_ADDR=0x100000
DATA_START_SYMBOLS='__DATA_ROM = .; __DATA_RAM = .;'
SDATA_START_SYMBOLS='_SDA_BASE_ = .; HIDDEN (_gp = . + 0x7ff0);'
SDATA2_START_SYMBOLS='_SDA2_BASE_ = .;'
EXECUTABLE_SYMBOLS='__HEAP_START = .; __SP_INIT = 0x800000; __SP_END = __SP_INIT - 0x20000; __HEAP_END = __SP_END; __DATA_END = _edata; __BSS_START = __bss_start; __BSS_END = _end; __HEAP_START = _end;'
# The Diab tools use a different init/fini convention. Initialization code
# is place in sections named ".init$NN". These sections are then concatenated
# into the .init section. It is important that .init$00 be first and .init$99
# be last. The other sections should be sorted, but the current linker script
# parse does not seem to allow that with the SORT keyword in this context.
INIT_START='*(.init$00); *(.init$0[1-9]); *(.init$[1-8][0-9]); *(.init$9[0-8])'
INIT_END='*(.init$99)'
FINI_START='*(.fini$00); *(.fini$0[1-9]); *(.fini$[1-8][0-9]); *(.fini$9[0-8])'
FINI_END='*(.fini$99)'