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This patch adds a new S/390 specific segment type: PT_S390_PGSTE. For binaries marked with that segment the kernel will allocate 4k page tables. The only user so far will be qemu. ld/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * Makefile.in: Add s390.em as build dependency. * emulparams/elf64_s390.sh (EXTRA_EM_FILE): Add s390.em. * emultempl/s390.em: New file. * gen-doc.texi: Add documentation for --s390-pgste option. * ld.texinfo: Likewise. include/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * elf/s390.h (PT_S390_PGSTE): Define macro. binutils/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * readelf.c (get_s390_segment_type): Add support for the new segment type PT_S390_PGSTE. (get_segment_type): Call get_s390_segment_type. elfcpp/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * elfcpp.h (enum PT): Add PT_S390_PGSTE to enum. bfd/ChangeLog: 2017-06-23 Andreas Krebbel <krebbel@linux.vnet.ibm.com> * elf-s390.h: New file. * elf64-s390.c (struct elf_s390_link_hash_table): Add params field. (elf_s390_additional_program_headers): New function. (elf_s390_modify_segment_map): New function. (bfd_elf_s390_set_options): New function. (elf_backend_additional_program_headers) (elf_backend_modify_segment_map): Add macro definitions.
38 lines
837 B
Bash
38 lines
837 B
Bash
SCRIPT_NAME=elf
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ELFSIZE=64
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OUTPUT_FORMAT="elf64-s390"
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NO_REL_RELOCS=yes
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TEXT_START_ADDR=0x1000000
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MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
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COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
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ARCH="s390:64-bit"
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MACHINE=
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NOP=0x07070707
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TEMPLATE_NAME=elf32
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GENERATE_SHLIB_SCRIPT=yes
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GENERATE_PIE_SCRIPT=yes
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NO_SMALL_DATA=yes
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EXTRA_EM_FILE=s390
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IREL_IN_PLT=
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# Treat a host that matches the target with the possible exception of "x"
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# in the name as if it were native.
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if test `echo "$host" | sed -e s/390x/390/` \
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= `echo "$target" | sed -e s/390x/390/`; then
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case " $EMULATION_LIBPATH " in
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*" ${EMULATION_NAME} "*)
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NATIVE=yes
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esac
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fi
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# Look for 64 bit target libraries in /lib64, /usr/lib64 etc., first
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# on Linux.
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case "$target" in
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s390*-linux*)
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case "$EMULATION_NAME" in
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*64*)
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LIBPATH_SUFFIX=64 ;;
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esac
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;;
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esac
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