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114 lines
4.3 KiB
C
114 lines
4.3 KiB
C
/* ALPHA ELF support for BFD.
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Copyright (C) 1996, 1998 Free Software Foundation, Inc.
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By Eric Youngdale, <eric@aib.com>. No processor supplement available
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for this platform.
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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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* This file holds definitions specific to the ALPHA ELF ABI. Note
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that most of this is not actually implemented by BFD. */
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#ifndef _ELF_ALPHA_H
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#define _ELF_ALPHA_H
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/* Processor specific flags for the ELF header e_flags field. */
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/* All addresses must be below 2GB. */
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#define EF_ALPHA_32BIT 0x00000001
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/* All relocations needed for relaxation with code movement are present. */
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#define EF_ALPHA_CANRELAX 0x00000002
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/* Processor specific section flags. */
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/* This section must be in the global data area. */
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#define SHF_ALPHA_GPREL 0x10000000
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/* Section contains some sort of debugging information. The exact
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format is unspecified. It's probably ECOFF symbols. */
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#define SHT_ALPHA_DEBUG 0x70000001
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/* Section contains register usage information. */
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#define SHT_ALPHA_REGINFO 0x70000002
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/* A section of type SHT_MIPS_REGINFO contains the following
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structure. */
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typedef struct
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{
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/* Mask of general purpose registers used. */
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unsigned long ri_gprmask;
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/* Mask of co-processor registers used. */
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unsigned long ri_cprmask[4];
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/* GP register value for this object file. */
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long ri_gp_value;
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} Elf64_RegInfo;
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/* Special values for the st_other field in the symbol table. */
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#define STO_ALPHA_NOPV 0x80
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#define STO_ALPHA_STD_GPLOAD 0x88
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/* Unless otherwise told we define an enum with the relocation entries. */
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#ifndef START_RELOC_NUMBERS
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# define START_RELOC_NUMBERS(name) enum name {
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# define RELOC_NUMBER(name, number) name = number ,
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# define END_RELOC_NUMBERS };
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#endif
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/* Alpha relocs. */
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START_RELOC_NUMBERS (elf_alpha_reloc_type)
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RELOC_NUMBER (R_ALPHA_NONE, 0) /* No reloc */
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RELOC_NUMBER (R_ALPHA_REFLONG, 1) /* Direct 32 bit */
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RELOC_NUMBER (R_ALPHA_REFQUAD, 2) /* Direct 64 bit */
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RELOC_NUMBER (R_ALPHA_GPREL32, 3) /* GP relative 32 bit */
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RELOC_NUMBER (R_ALPHA_LITERAL, 4) /* GP relative 16 bit w/optimization */
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RELOC_NUMBER (R_ALPHA_LITUSE, 5) /* Optimization hint for LITERAL */
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RELOC_NUMBER (R_ALPHA_GPDISP, 6) /* Add displacement to GP */
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RELOC_NUMBER (R_ALPHA_BRADDR, 7) /* PC+4 relative 23 bit shifted */
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RELOC_NUMBER (R_ALPHA_HINT, 8) /* PC+4 relative 16 bit shifted */
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RELOC_NUMBER (R_ALPHA_SREL16, 9) /* PC relative 16 bit */
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RELOC_NUMBER (R_ALPHA_SREL32, 10) /* PC relative 32 bit */
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RELOC_NUMBER (R_ALPHA_SREL64, 11) /* PC relative 64 bit */
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/* Inherited these from ECOFF, but they are not particularly useful
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and are depreciated. And not implemented in the BFD, btw. */
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RELOC_NUMBER (R_ALPHA_OP_PUSH, 12) /* OP stack push */
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RELOC_NUMBER (R_ALPHA_OP_STORE, 13) /* OP stack pop and store */
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RELOC_NUMBER (R_ALPHA_OP_PSUB, 14) /* OP stack subtract */
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RELOC_NUMBER (R_ALPHA_OP_PRSHIFT, 15) /* OP stack right shift */
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RELOC_NUMBER (R_ALPHA_GPVALUE, 16)
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RELOC_NUMBER (R_ALPHA_GPRELHIGH, 17)
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RELOC_NUMBER (R_ALPHA_GPRELLOW, 18)
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RELOC_NUMBER (R_ALPHA_IMMED_GP_16, 19)
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RELOC_NUMBER (R_ALPHA_IMMED_GP_HI32, 20)
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RELOC_NUMBER (R_ALPHA_IMMED_SCN_HI32, 21)
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RELOC_NUMBER (R_ALPHA_IMMED_BR_HI32, 22)
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RELOC_NUMBER (R_ALPHA_IMMED_LO32, 23)
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/* These relocations are specific to shared libraries. */
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RELOC_NUMBER (R_ALPHA_COPY, 24) /* Copy symbol at runtime */
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RELOC_NUMBER (R_ALPHA_GLOB_DAT, 25) /* Create GOT entry */
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RELOC_NUMBER (R_ALPHA_JMP_SLOT, 26) /* Create PLT entry */
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RELOC_NUMBER (R_ALPHA_RELATIVE, 27) /* Adjust by program base */
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RELOC_NUMBER (R_ALPHA_max, 28)
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END_RELOC_NUMBERS
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#endif /* _ELF_ALPHA_H */
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