xref: /netbsd-src/external/gpl3/gdb/dist/include/elf/s390.h (revision e663ba6e3a60083e70de702e9d54bf486a57b6a7)

/* 390 ELF support for BFD.
   Copyright (C) 2000-2024 Free Software Foundation, Inc.
   Contributed by Carl B. Pedersen and Martin Schwidefsky.

   This file is part of BFD, the Binary File Descriptor library.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
   02110-1301, USA.  */

#ifndef _ELF_390_H
#define _ELF_390_H

/* Processor specific flags for the ELF header e_flags field.  */

/* Symbol types.  */

#define STACK_REG		15		/* Global Stack reg */
#define BACKL_REG		14		/* Global Backlink reg */
#define BASE_REG		13		/* Global Base reg */
#define GOT_REG 		12		/* Holds addr of GOT */

#include "elf/reloc-macros.h"

/* Processor specific flags for the ELF header e_flags field.  */

#define EF_S390_HIGH_GPRS        0x00000001

/* Request 4k page table size.  */
#define PT_S390_PGSTE (PT_LOPROC + 0)

/* Relocation types.  */

START_RELOC_NUMBERS (elf_s390_reloc_type)
    RELOC_NUMBER (R_390_NONE, 0)	/* No reloc.  */
    RELOC_NUMBER (R_390_8, 1)		/* Direct 8 bit.  */
    RELOC_NUMBER (R_390_12, 2)		/* Direct 12 bit.  */
    RELOC_NUMBER (R_390_16, 3)		/* Direct 16 bit.  */
    RELOC_NUMBER (R_390_32, 4)		/* Direct 32 bit.  */
    RELOC_NUMBER (R_390_PC32, 5)	/* PC relative 32 bit.  */
    RELOC_NUMBER (R_390_GOT12, 6)	/* 12 bit GOT offset.  */
    RELOC_NUMBER (R_390_GOT32, 7)	/* 32 bit GOT offset.  */
    RELOC_NUMBER (R_390_PLT32, 8)	/* 32 bit PC relative PLT address.  */
    RELOC_NUMBER (R_390_COPY, 9)	/* Copy symbol at runtime.  */
    RELOC_NUMBER (R_390_GLOB_DAT, 10)	/* Create GOT entry.  */
    RELOC_NUMBER (R_390_JMP_SLOT, 11)	/* Create PLT entry.  */
    RELOC_NUMBER (R_390_RELATIVE, 12)	/* Adjust by program base.  */
    RELOC_NUMBER (R_390_GOTOFF32, 13)	/* 32 bit offset to GOT.  */
    RELOC_NUMBER (R_390_GOTPC, 14)	/* 32 bit PC relative offset to GOT.  */
    RELOC_NUMBER (R_390_GOT16, 15)	/* 16 bit GOT offset.  */
    RELOC_NUMBER (R_390_PC16, 16)	/* PC relative 16 bit.  */
    RELOC_NUMBER (R_390_PC12DBL, 62)	/* PC relative 12 bit shifted by 1.  */
    RELOC_NUMBER (R_390_PLT12DBL, 63)	/* 12 bit PC rel. PLT shifted by 1.  */
    RELOC_NUMBER (R_390_PC16DBL, 17)	/* PC relative 16 bit shifted by 1.  */
    RELOC_NUMBER (R_390_PLT16DBL, 18)	/* 16 bit PC rel. PLT shifted by 1.  */
    RELOC_NUMBER (R_390_PC24DBL, 64)	/* PC relative 24 bit shifted by 1.  */
    RELOC_NUMBER (R_390_PLT24DBL, 65)	/* 24 bit PC rel. PLT shifted by 1.  */
    RELOC_NUMBER (R_390_PC32DBL, 19)	/* PC relative 32 bit shifted by 1.  */
    RELOC_NUMBER (R_390_PLT32DBL, 20)	/* 32 bit PC rel. PLT shifted by 1.  */
    RELOC_NUMBER (R_390_GOTPCDBL, 21)	/* 32 bit PC rel. GOT shifted by 1.  */
    RELOC_NUMBER (R_390_64, 22)		/* Direct 64 bit.  */
    RELOC_NUMBER (R_390_PC64, 23)	/* PC relative 64 bit.  */
    RELOC_NUMBER (R_390_GOT64, 24)	/* 64 bit GOT offset.  */
    RELOC_NUMBER (R_390_PLT64, 25)	/* 64 bit PC relative PLT address.  */
    RELOC_NUMBER (R_390_GOTENT, 26)	/* 32 bit PC rel. to GOT entry >> 1. */
    RELOC_NUMBER (R_390_GOTOFF16, 27)   /* 16 bit offset to GOT. */
    RELOC_NUMBER (R_390_GOTOFF64, 28)   /* 64 bit offset to GOT. */
    RELOC_NUMBER (R_390_GOTPLT12, 29)   /* 12 bit offset to jump slot.  */
    RELOC_NUMBER (R_390_GOTPLT16, 30)   /* 16 bit offset to jump slot.  */
    RELOC_NUMBER (R_390_GOTPLT32, 31)   /* 32 bit offset to jump slot.  */
    RELOC_NUMBER (R_390_GOTPLT64, 32)   /* 64 bit offset to jump slot.  */
    RELOC_NUMBER (R_390_GOTPLTENT, 33)  /* 32 bit rel. offset to jump slot.  */
    RELOC_NUMBER (R_390_PLTOFF16, 34)   /* 16 bit offset from GOT to PLT. */
    RELOC_NUMBER (R_390_PLTOFF32, 35)   /* 32 bit offset from GOT to PLT. */
    RELOC_NUMBER (R_390_PLTOFF64, 36)   /* 16 bit offset from GOT to PLT. */
    RELOC_NUMBER (R_390_TLS_LOAD, 37)	/* Tag for load insn in TLS code. */
    RELOC_NUMBER (R_390_TLS_GDCALL, 38)	/* Tag for function call in general
					   dynamic TLS code.  */
    RELOC_NUMBER (R_390_TLS_LDCALL, 39)	/* Tag for function call in local
					   dynamic TLS code.  */
    RELOC_NUMBER (R_390_TLS_GD32, 40)	/* Direct 32 bit for general dynamic
					   thread local data.  */
    RELOC_NUMBER (R_390_TLS_GD64, 41)	/* Direct 64 bit for general dynamic
					   thread local data.  */
    RELOC_NUMBER (R_390_TLS_GOTIE12, 42)/* 12 bit GOT offset for static TLS
					   block offset.  */
    RELOC_NUMBER (R_390_TLS_GOTIE32, 43)/* 32 bit GOT offset for static TLS
					   block offset.  */
    RELOC_NUMBER (R_390_TLS_GOTIE64, 44)/* 64 bit GOT offset for static TLS
					   block offset.  */
    RELOC_NUMBER (R_390_TLS_LDM32, 45)	/* Direct 32 bit for local dynamic
					   thread local data in LD code.  */
    RELOC_NUMBER (R_390_TLS_LDM64, 46)	/* Direct 64 bit for local dynamic
					   thread local data in LD code.  */
    RELOC_NUMBER (R_390_TLS_IE32, 47)	/* 32 bit address of GOT entry for
					   negated static TLS block offset.  */
    RELOC_NUMBER (R_390_TLS_IE64, 48)	/* 64 bit address of GOT entry for
					   negated static TLS block offset.  */
    RELOC_NUMBER (R_390_TLS_IEENT, 49)	/* 32 bit rel. offset to GOT entry for
					   negated static TLS block offset.  */
    RELOC_NUMBER (R_390_TLS_LE32, 50)	/* 32 bit negated offset relative to
					   static TLS block.  */
    RELOC_NUMBER (R_390_TLS_LE64, 51)	/* 64 bit negated offset relative to
					   static TLS block.  */
    RELOC_NUMBER (R_390_TLS_LDO32, 52)	/* 32 bit offset relative to TLS
					   block.  */
    RELOC_NUMBER (R_390_TLS_LDO64, 53)	/* 64 bit offset relative to TLS
					   block.  */
    RELOC_NUMBER (R_390_TLS_DTPMOD, 54)	/* ID of module containing symbol.  */
    RELOC_NUMBER (R_390_TLS_DTPOFF, 55)	/* Offset in TLS block.  */
    RELOC_NUMBER (R_390_TLS_TPOFF, 56)	/* Negate offset in static TLS
					   block.  */
    RELOC_NUMBER (R_390_20, 57)		/* Direct 20 bit.  */
    RELOC_NUMBER (R_390_GOT20, 58)	/* 20 bit GOT offset.  */
    RELOC_NUMBER (R_390_GOTPLT20, 59)	/* 20 bit offset to jump slot.  */
    RELOC_NUMBER (R_390_TLS_GOTIE20, 60)/* 20 bit GOT offset for statis TLS
					   block offset.  */
    RELOC_NUMBER (R_390_IRELATIVE, 61)  /* IFUNC relocation.  */
    /* These are GNU extensions to enable C++ vtable garbage collection.  */
    RELOC_NUMBER (R_390_GNU_VTINHERIT, 250)
    RELOC_NUMBER (R_390_GNU_VTENTRY, 251)
END_RELOC_NUMBERS (R_390_max)

/* Object attribute tags.  */
enum
{
  /* 0-3 are generic. */
  /* 4 is reserved for the FP ABI. */

  /* Vector ABI:
     0 = not affected by the vector ABI, or not tagged.
     1 = software vector ABI being used
     2 = hardware vector ABI being used.  */
  Tag_GNU_S390_ABI_Vector = 8,
};

#endif /* _ELF_390_H */