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      1 /* Score ELF support for BFD.
      2    Copyright (C) 2006-2016 Free Software Foundation, Inc.
      3    Contributed by
      4    Brain.lin (brain.lin (at) sunplusct.com)
      5    Mei Ligang (ligang (at) sunnorth.com.cn)
      6    Pei-Lin Tsai (pltsai (at) sunplus.com)
      7 
      8    This file is part of BFD, the Binary File Descriptor library.
      9 
     10    This program is free software; you can redistribute it and/or modify
     11    it under the terms of the GNU General Public License as published by
     12    the Free Software Foundation; either version 3 of the License, or
     13    (at your option) any later version.
     14 
     15    This program is distributed in the hope that it will be useful,
     16    but WITHOUT ANY WARRANTY; without even the implied warranty of
     17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     18    GNU General Public License for more details.
     19 
     20    You should have received a copy of the GNU General Public License
     21    along with this program; if not, write to the Free Software
     22    Foundation Inc., 51 Franklin Street - Fifth Floor, Boston,
     23    MA 02110-1301, USA.  */
     24 
     25 #ifndef _ELF_SCORE_H
     26 #define _ELF_SCORE_H
     27 
     28 #include "elf/reloc-macros.h"
     29 
     30 #define SCORE_SIMULATOR_ACTIVE  1
     31 #define OPC_PTMASK              0xc0000000      /* Parity-bit Mask.  */
     32 #define OPC16_PTMASK		0x00008000
     33 /* The parity-bit denotes.  */
     34 #define OPC_32                  0xc0000000      /* Denotes 32b instruction, (default).  */
     35 #define OPC_16                  0x00000000      /* Denotes 16b instruction.  */
     36 #define OPC_PE                  0x8000          /* Denotes parallel-execution instructions.  */
     37 #define GP_DISP_LABEL           "_gp_disp"
     38 
     39 /* Processor specific flags for the ELF header e_flags field:  */
     40 #define EF_SCORE_MACH           0xffff0000
     41 #define EF_OMIT_PIC_FIXDD       0x0fff0000
     42 #define E_SCORE_MACH_SCORE3     0x00030000
     43 #define E_SCORE_MACH_SCORE7     0x00070000
     44 
     45 /* File contains position independent code.  */
     46 #define EF_SCORE_PIC            0x80000000
     47 
     48 /* Fix data dependency.  */
     49 #define EF_SCORE_FIXDEP         0x40000000
     50 
     51 /* Defined and allocated common symbol.  Value is virtual address.  If
     52    relocated, alignment must be preserved.  */
     53 #define SHN_SCORE_TEXT		(SHN_LORESERVE + 1)
     54 #define SHN_SCORE_DATA		(SHN_LORESERVE + 2)
     55 /* Small common symbol.  */
     56 #define SHN_SCORE_SCOMMON	(SHN_LORESERVE + 3)
     57 
     58 /* Processor specific section flags.  */
     59 
     60 /* This section must be in the global data area.  */
     61 #define SHF_SCORE_GPREL		0x10000000
     62 
     63 /* This section should be merged.  */
     64 #define SHF_SCORE_MERGE		0x20000000
     65 
     66 /* This section contains address data of size implied by section
     67    element size.  */
     68 #define SHF_SCORE_ADDR		0x40000000
     69 
     70 /* This section contains string data.  */
     71 #define SHF_SCORE_STRING		0x80000000
     72 
     73 /* This section may not be stripped.  */
     74 #define SHF_SCORE_NOSTRIP	0x08000000
     75 
     76 /* This section is local to threads.  */
     77 #define SHF_SCORE_LOCAL		0x04000000
     78 
     79 /* Linker should generate implicit weak names for this section.  */
     80 #define SHF_SCORE_NAMES		0x02000000
     81 
     82 /* Section contais text/data which may be replicated in other sections.
     83    Linker should retain only one copy.  */
     84 #define SHF_SCORE_NODUPES	0x01000000
     85 
     86 /* Processor specific dynamic array tags.  */
     87 
     88 /* Base address of the segment.  */
     89 #define DT_SCORE_BASE_ADDRESS	0x70000001
     90 /* Number of local global offset table entries.  */
     91 #define DT_SCORE_LOCAL_GOTNO	0x70000002
     92 /* Number of entries in the .dynsym section.  */
     93 #define DT_SCORE_SYMTABNO	0x70000003
     94 /* Index of first dynamic symbol in global offset table.  */
     95 #define DT_SCORE_GOTSYM		0x70000004
     96 /* Index of first external dynamic symbol not referenced locally.  */
     97 #define DT_SCORE_UNREFEXTNO	0x70000005
     98 /* Number of page table entries in global offset table.  */
     99 #define DT_SCORE_HIPAGENO	0x70000006
    100 
    101 
    102 /* Processor specific section types.  */
    103 
    104 
    105 /* Relocation types.  */
    106 START_RELOC_NUMBERS (elf_score_reloc_type)
    107   RELOC_NUMBER (R_SCORE_NONE,           0)
    108   RELOC_NUMBER (R_SCORE_HI16,           1)
    109   RELOC_NUMBER (R_SCORE_LO16,           2)
    110   RELOC_NUMBER (R_SCORE_BCMP,           3)
    111   RELOC_NUMBER (R_SCORE_24,             4)
    112   RELOC_NUMBER (R_SCORE_PC19,           5)
    113   RELOC_NUMBER (R_SCORE16_11,           6)
    114   RELOC_NUMBER (R_SCORE16_PC8,          7)
    115   RELOC_NUMBER (R_SCORE_ABS32,          8)
    116   RELOC_NUMBER (R_SCORE_ABS16,          9)
    117   RELOC_NUMBER (R_SCORE_DUMMY2,         10)
    118   RELOC_NUMBER (R_SCORE_GP15,           11)
    119   RELOC_NUMBER (R_SCORE_GNU_VTINHERIT,  12)
    120   RELOC_NUMBER (R_SCORE_GNU_VTENTRY,    13)
    121   RELOC_NUMBER (R_SCORE_GOT15,          14)
    122   RELOC_NUMBER (R_SCORE_GOT_LO16,       15)
    123   RELOC_NUMBER (R_SCORE_CALL15,         16)
    124   RELOC_NUMBER (R_SCORE_GPREL32,        17)
    125   RELOC_NUMBER (R_SCORE_REL32,          18)
    126   RELOC_NUMBER (R_SCORE_DUMMY_HI16,     19)
    127   RELOC_NUMBER (R_SCORE_IMM30,          20)
    128   RELOC_NUMBER (R_SCORE_IMM32,          21)
    129 END_RELOC_NUMBERS (R_SCORE_max)
    130 
    131 #endif /* _ELF_SCORE_H */
    132