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b4cbbe8f72
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.
149 lines
7.1 KiB
C
149 lines
7.1 KiB
C
/* 390 ELF support for BFD.
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Copyright (C) 2000-2017 Free Software Foundation, Inc.
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Contributed by Carl B. Pedersen and Martin Schwidefsky.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef _ELF_390_H
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#define _ELF_390_H
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/* Processor specific flags for the ELF header e_flags field. */
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/* Symbol types. */
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#define STACK_REG 15 /* Global Stack reg */
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#define BACKL_REG 14 /* Global Backlink reg */
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#define BASE_REG 13 /* Global Base reg */
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#define GOT_REG 12 /* Holds addr of GOT */
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#include "elf/reloc-macros.h"
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/* Processor specific flags for the ELF header e_flags field. */
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#define EF_S390_HIGH_GPRS 0x00000001
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/* Request 4k page table size. */
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#define PT_S390_PGSTE (PT_LOPROC + 0)
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/* Relocation types. */
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START_RELOC_NUMBERS (elf_s390_reloc_type)
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RELOC_NUMBER (R_390_NONE, 0) /* No reloc. */
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RELOC_NUMBER (R_390_8, 1) /* Direct 8 bit. */
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RELOC_NUMBER (R_390_12, 2) /* Direct 12 bit. */
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RELOC_NUMBER (R_390_16, 3) /* Direct 16 bit. */
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RELOC_NUMBER (R_390_32, 4) /* Direct 32 bit. */
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RELOC_NUMBER (R_390_PC32, 5) /* PC relative 32 bit. */
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RELOC_NUMBER (R_390_GOT12, 6) /* 12 bit GOT offset. */
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RELOC_NUMBER (R_390_GOT32, 7) /* 32 bit GOT offset. */
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RELOC_NUMBER (R_390_PLT32, 8) /* 32 bit PC relative PLT address. */
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RELOC_NUMBER (R_390_COPY, 9) /* Copy symbol at runtime. */
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RELOC_NUMBER (R_390_GLOB_DAT, 10) /* Create GOT entry. */
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RELOC_NUMBER (R_390_JMP_SLOT, 11) /* Create PLT entry. */
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RELOC_NUMBER (R_390_RELATIVE, 12) /* Adjust by program base. */
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RELOC_NUMBER (R_390_GOTOFF32, 13) /* 32 bit offset to GOT. */
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RELOC_NUMBER (R_390_GOTPC, 14) /* 32 bit PC relative offset to GOT. */
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RELOC_NUMBER (R_390_GOT16, 15) /* 16 bit GOT offset. */
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RELOC_NUMBER (R_390_PC16, 16) /* PC relative 16 bit. */
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RELOC_NUMBER (R_390_PC12DBL, 62) /* PC relative 12 bit shifted by 1. */
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RELOC_NUMBER (R_390_PLT12DBL, 63) /* 12 bit PC rel. PLT shifted by 1. */
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RELOC_NUMBER (R_390_PC16DBL, 17) /* PC relative 16 bit shifted by 1. */
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RELOC_NUMBER (R_390_PLT16DBL, 18) /* 16 bit PC rel. PLT shifted by 1. */
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RELOC_NUMBER (R_390_PC24DBL, 64) /* PC relative 24 bit shifted by 1. */
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RELOC_NUMBER (R_390_PLT24DBL, 65) /* 24 bit PC rel. PLT shifted by 1. */
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RELOC_NUMBER (R_390_PC32DBL, 19) /* PC relative 32 bit shifted by 1. */
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RELOC_NUMBER (R_390_PLT32DBL, 20) /* 32 bit PC rel. PLT shifted by 1. */
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RELOC_NUMBER (R_390_GOTPCDBL, 21) /* 32 bit PC rel. GOT shifted by 1. */
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RELOC_NUMBER (R_390_64, 22) /* Direct 64 bit. */
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RELOC_NUMBER (R_390_PC64, 23) /* PC relative 64 bit. */
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RELOC_NUMBER (R_390_GOT64, 24) /* 64 bit GOT offset. */
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RELOC_NUMBER (R_390_PLT64, 25) /* 64 bit PC relative PLT address. */
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RELOC_NUMBER (R_390_GOTENT, 26) /* 32 bit PC rel. to GOT entry >> 1. */
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RELOC_NUMBER (R_390_GOTOFF16, 27) /* 16 bit offset to GOT. */
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RELOC_NUMBER (R_390_GOTOFF64, 28) /* 64 bit offset to GOT. */
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RELOC_NUMBER (R_390_GOTPLT12, 29) /* 12 bit offset to jump slot. */
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RELOC_NUMBER (R_390_GOTPLT16, 30) /* 16 bit offset to jump slot. */
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RELOC_NUMBER (R_390_GOTPLT32, 31) /* 32 bit offset to jump slot. */
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RELOC_NUMBER (R_390_GOTPLT64, 32) /* 64 bit offset to jump slot. */
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RELOC_NUMBER (R_390_GOTPLTENT, 33) /* 32 bit rel. offset to jump slot. */
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RELOC_NUMBER (R_390_PLTOFF16, 34) /* 16 bit offset from GOT to PLT. */
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RELOC_NUMBER (R_390_PLTOFF32, 35) /* 32 bit offset from GOT to PLT. */
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RELOC_NUMBER (R_390_PLTOFF64, 36) /* 16 bit offset from GOT to PLT. */
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RELOC_NUMBER (R_390_TLS_LOAD, 37) /* Tag for load insn in TLS code. */
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RELOC_NUMBER (R_390_TLS_GDCALL, 38) /* Tag for function call in general
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dynamic TLS code. */
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RELOC_NUMBER (R_390_TLS_LDCALL, 39) /* Tag for function call in local
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dynamic TLS code. */
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RELOC_NUMBER (R_390_TLS_GD32, 40) /* Direct 32 bit for general dynamic
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thread local data. */
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RELOC_NUMBER (R_390_TLS_GD64, 41) /* Direct 64 bit for general dynamic
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thread local data. */
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RELOC_NUMBER (R_390_TLS_GOTIE12, 42)/* 12 bit GOT offset for static TLS
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block offset. */
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RELOC_NUMBER (R_390_TLS_GOTIE32, 43)/* 32 bit GOT offset for static TLS
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block offset. */
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RELOC_NUMBER (R_390_TLS_GOTIE64, 44)/* 64 bit GOT offset for static TLS
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block offset. */
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RELOC_NUMBER (R_390_TLS_LDM32, 45) /* Direct 32 bit for local dynamic
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thread local data in LD code. */
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RELOC_NUMBER (R_390_TLS_LDM64, 46) /* Direct 64 bit for local dynamic
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thread local data in LD code. */
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RELOC_NUMBER (R_390_TLS_IE32, 47) /* 32 bit address of GOT entry for
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negated static TLS block offset. */
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RELOC_NUMBER (R_390_TLS_IE64, 48) /* 64 bit address of GOT entry for
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negated static TLS block offset. */
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RELOC_NUMBER (R_390_TLS_IEENT, 49) /* 32 bit rel. offset to GOT entry for
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negated static TLS block offset. */
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RELOC_NUMBER (R_390_TLS_LE32, 50) /* 32 bit negated offset relative to
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static TLS block. */
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RELOC_NUMBER (R_390_TLS_LE64, 51) /* 64 bit negated offset relative to
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static TLS block. */
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RELOC_NUMBER (R_390_TLS_LDO32, 52) /* 32 bit offset relative to TLS
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block. */
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RELOC_NUMBER (R_390_TLS_LDO64, 53) /* 64 bit offset relative to TLS
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block. */
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RELOC_NUMBER (R_390_TLS_DTPMOD, 54) /* ID of module containing symbol. */
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RELOC_NUMBER (R_390_TLS_DTPOFF, 55) /* Offset in TLS block. */
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RELOC_NUMBER (R_390_TLS_TPOFF, 56) /* Negate offset in static TLS
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block. */
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RELOC_NUMBER (R_390_20, 57) /* Direct 20 bit. */
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RELOC_NUMBER (R_390_GOT20, 58) /* 20 bit GOT offset. */
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RELOC_NUMBER (R_390_GOTPLT20, 59) /* 20 bit offset to jump slot. */
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RELOC_NUMBER (R_390_TLS_GOTIE20, 60)/* 20 bit GOT offset for statis TLS
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block offset. */
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RELOC_NUMBER (R_390_IRELATIVE, 61) /* IFUNC relocation. */
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/* These are GNU extensions to enable C++ vtable garbage collection. */
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RELOC_NUMBER (R_390_GNU_VTINHERIT, 250)
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RELOC_NUMBER (R_390_GNU_VTENTRY, 251)
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END_RELOC_NUMBERS (R_390_max)
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/* Object attribute tags. */
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enum
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{
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/* 0-3 are generic. */
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/* 4 is reserved for the FP ABI. */
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/* Vector ABI:
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0 = not affected by the vector ABI, or not tagged.
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1 = software vector ABI being used
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2 = hardware vector ABI being used. */
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Tag_GNU_S390_ABI_Vector = 8,
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};
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#endif /* _ELF_390_H */
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