Open64: osprey/cygnus/bfd/elfarm-nabi.c Source File

00001 /* 32-bit ELF support for ARM new abi option.
00002    Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
00003 
00004    This file is part of BFD, the Binary File Descriptor library.
00005 
00006    This program is free software; you can redistribute it and/or modify
00007    it under the terms of the GNU General Public License as published by
00008    the Free Software Foundation; either version 2 of the License, or
00009    (at your option) any later version.
00010 
00011    This program is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014    GNU General Public License for more details.
00015 
00016    You should have received a copy of the GNU General Public License
00017    along with this program; if not, write to the Free Software
00018    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
00019 
00020 #include "elf/arm.h"
00021 #include "bfd.h"
00022 #include "sysdep.h"
00023 #include "libbfd.h"
00024 #include "elf-bfd.h"
00025 
00026 #ifndef NUM_ELEM
00027 #define NUM_ELEM(a)  (sizeof (a) / (sizeof (a)[0]))
00028 #endif
00029 
00030 #define USE_REL 1
00031 
00032 #define TARGET_LITTLE_SYM               bfd_elf32_littlearm_vec
00033 #define TARGET_LITTLE_NAME              "elf32-littlearm"
00034 #define TARGET_BIG_SYM                  bfd_elf32_bigarm_vec
00035 #define TARGET_BIG_NAME                 "elf32-bigarm"
00036 
00037 #define elf_info_to_howto               0
00038 #define elf_info_to_howto_rel           elf32_arm_info_to_howto
00039 
00040 #define ARM_ELF_ABI_VERSION   0
00041 #define ARM_ELF_OS_ABI_VERSION    ELFOSABI_ARM
00042 
00043 static reloc_howto_type * elf32_arm_reloc_type_lookup
00044   PARAMS ((bfd * abfd, bfd_reloc_code_real_type code));
00045 static bfd_boolean elf32_arm_nabi_grok_prstatus
00046   PARAMS ((bfd *abfd, Elf_Internal_Note *note));
00047 static bfd_boolean elf32_arm_nabi_grok_psinfo
00048   PARAMS ((bfd *abfd, Elf_Internal_Note *note));
00049 
00050 /* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g.
00051    R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO
00052    in that slot.  */
00053 
00054 static reloc_howto_type elf32_arm_howto_table[] =
00055 {
00056   /* No relocation */
00057   HOWTO (R_ARM_NONE,    /* type */
00058    0,     /* rightshift */
00059    0,     /* size (0 = byte, 1 = short, 2 = long) */
00060    0,     /* bitsize */
00061    FALSE,     /* pc_relative */
00062    0,     /* bitpos */
00063    complain_overflow_dont,/* complain_on_overflow */
00064    bfd_elf_generic_reloc, /* special_function */
00065    "R_ARM_NONE",    /* name */
00066    FALSE,     /* partial_inplace */
00067    0,     /* src_mask */
00068    0,     /* dst_mask */
00069    FALSE),    /* pcrel_offset */
00070 
00071   HOWTO (R_ARM_PC24,    /* type */
00072    2,     /* rightshift */
00073    2,     /* size (0 = byte, 1 = short, 2 = long) */
00074    24,      /* bitsize */
00075    TRUE,      /* pc_relative */
00076    0,     /* bitpos */
00077    complain_overflow_signed,/* complain_on_overflow */
00078    bfd_elf_generic_reloc, /* special_function */
00079    "R_ARM_PC24",    /* name */
00080    FALSE,     /* partial_inplace */
00081    0x00ffffff,    /* src_mask */
00082    0x00ffffff,    /* dst_mask */
00083    TRUE),     /* pcrel_offset */
00084 
00085   /* 32 bit absolute */
00086   HOWTO (R_ARM_ABS32,   /* type */
00087    0,     /* rightshift */
00088    2,     /* size (0 = byte, 1 = short, 2 = long) */
00089    32,      /* bitsize */
00090    FALSE,     /* pc_relative */
00091    0,     /* bitpos */
00092    complain_overflow_bitfield,/* complain_on_overflow */
00093    bfd_elf_generic_reloc, /* special_function */
00094    "R_ARM_ABS32",   /* name */
00095    FALSE,     /* partial_inplace */
00096    0xffffffff,    /* src_mask */
00097    0xffffffff,    /* dst_mask */
00098    FALSE),    /* pcrel_offset */
00099 
00100   /* standard 32bit pc-relative reloc */
00101   HOWTO (R_ARM_REL32,   /* type */
00102    0,     /* rightshift */
00103    2,     /* size (0 = byte, 1 = short, 2 = long) */
00104    32,      /* bitsize */
00105    TRUE,      /* pc_relative */
00106    0,     /* bitpos */
00107    complain_overflow_bitfield,/* complain_on_overflow */
00108    bfd_elf_generic_reloc, /* special_function */
00109    "R_ARM_REL32",   /* name */
00110    FALSE,     /* partial_inplace */
00111    0xffffffff,    /* src_mask */
00112    0xffffffff,    /* dst_mask */
00113    TRUE),     /* pcrel_offset */
00114 
00115   /* 8 bit absolute */
00116   HOWTO (R_ARM_PC13,    /* type */
00117    0,     /* rightshift */
00118    0,     /* size (0 = byte, 1 = short, 2 = long) */
00119    8,     /* bitsize */
00120    FALSE,     /* pc_relative */
00121    0,     /* bitpos */
00122    complain_overflow_bitfield,/* complain_on_overflow */
00123    bfd_elf_generic_reloc, /* special_function */
00124    "R_ARM_PC13",    /* name */
00125    FALSE,     /* partial_inplace */
00126    0x000000ff,    /* src_mask */
00127    0x000000ff,    /* dst_mask */
00128    FALSE),    /* pcrel_offset */
00129 
00130    /* 16 bit absolute */
00131   HOWTO (R_ARM_ABS16,   /* type */
00132    0,     /* rightshift */
00133    1,     /* size (0 = byte, 1 = short, 2 = long) */
00134    16,      /* bitsize */
00135    FALSE,     /* pc_relative */
00136    0,     /* bitpos */
00137    complain_overflow_bitfield,/* complain_on_overflow */
00138    bfd_elf_generic_reloc, /* special_function */
00139    "R_ARM_ABS16",   /* name */
00140    FALSE,     /* partial_inplace */
00141    0x0000ffff,    /* src_mask */
00142    0x0000ffff,    /* dst_mask */
00143    FALSE),    /* pcrel_offset */
00144 
00145   /* 12 bit absolute */
00146   HOWTO (R_ARM_ABS12,   /* type */
00147    0,     /* rightshift */
00148    2,     /* size (0 = byte, 1 = short, 2 = long) */
00149    12,      /* bitsize */
00150    FALSE,     /* pc_relative */
00151    0,     /* bitpos */
00152    complain_overflow_bitfield,/* complain_on_overflow */
00153    bfd_elf_generic_reloc, /* special_function */
00154    "R_ARM_ABS12",   /* name */
00155    FALSE,     /* partial_inplace */
00156    0x000008ff,    /* src_mask */
00157    0x000008ff,    /* dst_mask */
00158    FALSE),    /* pcrel_offset */
00159 
00160   HOWTO (R_ARM_THM_ABS5,  /* type */
00161    6,     /* rightshift */
00162    1,     /* size (0 = byte, 1 = short, 2 = long) */
00163    5,     /* bitsize */
00164    FALSE,     /* pc_relative */
00165    0,     /* bitpos */
00166    complain_overflow_bitfield,/* complain_on_overflow */
00167    bfd_elf_generic_reloc, /* special_function */
00168    "R_ARM_THM_ABS5",  /* name */
00169    FALSE,     /* partial_inplace */
00170    0x000007e0,    /* src_mask */
00171    0x000007e0,    /* dst_mask */
00172    FALSE),    /* pcrel_offset */
00173 
00174   /* 8 bit absolute */
00175   HOWTO (R_ARM_ABS8,    /* type */
00176    0,     /* rightshift */
00177    0,     /* size (0 = byte, 1 = short, 2 = long) */
00178    8,     /* bitsize */
00179    FALSE,     /* pc_relative */
00180    0,     /* bitpos */
00181    complain_overflow_bitfield,/* complain_on_overflow */
00182    bfd_elf_generic_reloc, /* special_function */
00183    "R_ARM_ABS8",    /* name */
00184    FALSE,     /* partial_inplace */
00185    0x000000ff,    /* src_mask */
00186    0x000000ff,    /* dst_mask */
00187    FALSE),    /* pcrel_offset */
00188 
00189   HOWTO (R_ARM_SBREL32,   /* type */
00190    0,     /* rightshift */
00191    0,     /* size (0 = byte, 1 = short, 2 = long) */
00192    0,     /* bitsize */
00193    FALSE,     /* pc_relative */
00194    0,     /* bitpos */
00195    complain_overflow_dont,/* complain_on_overflow */
00196    bfd_elf_generic_reloc, /* special_function */
00197    "R_ARM_SBREL32", /* name */
00198    FALSE,     /* partial_inplace */
00199    0,     /* src_mask */
00200    0,     /* dst_mask */
00201    FALSE),    /* pcrel_offset */
00202 
00203   HOWTO (R_ARM_THM_PC22,  /* type */
00204    1,     /* rightshift */
00205    2,     /* size (0 = byte, 1 = short, 2 = long) */
00206    23,      /* bitsize */
00207    TRUE,      /* pc_relative */
00208    0,     /* bitpos */
00209    complain_overflow_signed,/* complain_on_overflow */
00210    bfd_elf_generic_reloc, /* special_function */
00211    "R_ARM_THM_PC22",  /* name */
00212    FALSE,     /* partial_inplace */
00213    0x07ff07ff,    /* src_mask */
00214    0x07ff07ff,    /* dst_mask */
00215    TRUE),     /* pcrel_offset */
00216 
00217   HOWTO (R_ARM_THM_PC8,         /* type */
00218    1,     /* rightshift */
00219    1,     /* size (0 = byte, 1 = short, 2 = long) */
00220    8,     /* bitsize */
00221    TRUE,      /* pc_relative */
00222    0,     /* bitpos */
00223    complain_overflow_signed,/* complain_on_overflow */
00224    bfd_elf_generic_reloc, /* special_function */
00225    "R_ARM_THM_PC8", /* name */
00226    FALSE,     /* partial_inplace */
00227    0x000000ff,    /* src_mask */
00228    0x000000ff,    /* dst_mask */
00229    TRUE),     /* pcrel_offset */
00230 
00231   HOWTO (R_ARM_AMP_VCALL9,  /* type */
00232    1,     /* rightshift */
00233    1,     /* size (0 = byte, 1 = short, 2 = long) */
00234    8,     /* bitsize */
00235    TRUE,      /* pc_relative */
00236    0,     /* bitpos */
00237    complain_overflow_signed,/* complain_on_overflow */
00238    bfd_elf_generic_reloc, /* special_function */
00239    "R_ARM_AMP_VCALL9",  /* name */
00240    FALSE,     /* partial_inplace */
00241    0x000000ff,    /* src_mask */
00242    0x000000ff,    /* dst_mask */
00243    TRUE),     /* pcrel_offset */
00244 
00245   HOWTO (R_ARM_SWI24,   /* type */
00246    0,     /* rightshift */
00247    0,     /* size (0 = byte, 1 = short, 2 = long) */
00248    0,     /* bitsize */
00249    FALSE,     /* pc_relative */
00250    0,     /* bitpos */
00251    complain_overflow_signed,/* complain_on_overflow */
00252    bfd_elf_generic_reloc, /* special_function */
00253    "R_ARM_SWI24",   /* name */
00254    FALSE,     /* partial_inplace */
00255    0x00000000,    /* src_mask */
00256    0x00000000,    /* dst_mask */
00257    FALSE),    /* pcrel_offset */
00258 
00259   HOWTO (R_ARM_THM_SWI8,  /* type */
00260    0,     /* rightshift */
00261    0,     /* size (0 = byte, 1 = short, 2 = long) */
00262    0,     /* bitsize */
00263    FALSE,     /* pc_relative */
00264    0,     /* bitpos */
00265    complain_overflow_signed,/* complain_on_overflow */
00266    bfd_elf_generic_reloc, /* special_function */
00267    "R_ARM_SWI8",    /* name */
00268    FALSE,     /* partial_inplace */
00269    0x00000000,    /* src_mask */
00270    0x00000000,    /* dst_mask */
00271    FALSE),    /* pcrel_offset */
00272 
00273   /* BLX instruction for the ARM.  */
00274   HOWTO (R_ARM_XPC25,   /* type */
00275    2,     /* rightshift */
00276    2,     /* size (0 = byte, 1 = short, 2 = long) */
00277    25,      /* bitsize */
00278    TRUE,      /* pc_relative */
00279    0,     /* bitpos */
00280    complain_overflow_signed,/* complain_on_overflow */
00281    bfd_elf_generic_reloc, /* special_function */
00282    "R_ARM_XPC25",   /* name */
00283    FALSE,     /* partial_inplace */
00284    0x00ffffff,    /* src_mask */
00285    0x00ffffff,    /* dst_mask */
00286    TRUE),     /* pcrel_offset */
00287 
00288   /* BLX instruction for the Thumb.  */
00289   HOWTO (R_ARM_THM_XPC22, /* type */
00290    2,     /* rightshift */
00291    2,     /* size (0 = byte, 1 = short, 2 = long) */
00292    22,      /* bitsize */
00293    TRUE,      /* pc_relative */
00294    0,     /* bitpos */
00295    complain_overflow_signed,/* complain_on_overflow */
00296    bfd_elf_generic_reloc, /* special_function */
00297    "R_ARM_THM_XPC22", /* name */
00298    FALSE,     /* partial_inplace */
00299    0x07ff07ff,    /* src_mask */
00300    0x07ff07ff,    /* dst_mask */
00301    TRUE),     /* pcrel_offset */
00302 
00303   /* These next three relocs are not defined, but we need to fill the space.  */
00304 
00305   HOWTO (R_ARM_NONE,    /* type */
00306    0,     /* rightshift */
00307    0,     /* size (0 = byte, 1 = short, 2 = long) */
00308    0,     /* bitsize */
00309    FALSE,     /* pc_relative */
00310    0,     /* bitpos */
00311    complain_overflow_dont,/* complain_on_overflow */
00312    bfd_elf_generic_reloc, /* special_function */
00313    "R_ARM_unknown_17",  /* name */
00314    FALSE,     /* partial_inplace */
00315    0,     /* src_mask */
00316    0,     /* dst_mask */
00317    FALSE),    /* pcrel_offset */
00318 
00319   HOWTO (R_ARM_NONE,    /* type */
00320    0,     /* rightshift */
00321    0,     /* size (0 = byte, 1 = short, 2 = long) */
00322    0,     /* bitsize */
00323    FALSE,     /* pc_relative */
00324    0,     /* bitpos */
00325    complain_overflow_dont,/* complain_on_overflow */
00326    bfd_elf_generic_reloc, /* special_function */
00327    "R_ARM_unknown_18",  /* name */
00328    FALSE,     /* partial_inplace */
00329    0,     /* src_mask */
00330    0,     /* dst_mask */
00331    FALSE),    /* pcrel_offset */
00332 
00333   HOWTO (R_ARM_NONE,    /* type */
00334    0,     /* rightshift */
00335    0,     /* size (0 = byte, 1 = short, 2 = long) */
00336    0,     /* bitsize */
00337    FALSE,     /* pc_relative */
00338    0,     /* bitpos */
00339    complain_overflow_dont,/* complain_on_overflow */
00340    bfd_elf_generic_reloc, /* special_function */
00341    "R_ARM_unknown_19",  /* name */
00342    FALSE,     /* partial_inplace */
00343    0,     /* src_mask */
00344    0,     /* dst_mask */
00345    FALSE),    /* pcrel_offset */
00346 
00347   /* Relocs used in ARM Linux */
00348 
00349   HOWTO (R_ARM_COPY,    /* type */
00350          0,                     /* rightshift */
00351          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00352          32,                    /* bitsize */
00353          FALSE,                 /* pc_relative */
00354          0,                     /* bitpos */
00355          complain_overflow_bitfield,/* complain_on_overflow */
00356          bfd_elf_generic_reloc, /* special_function */
00357          "R_ARM_COPY",    /* name */
00358          TRUE,      /* partial_inplace */
00359          0xffffffff,    /* src_mask */
00360          0xffffffff,    /* dst_mask */
00361          FALSE),                /* pcrel_offset */
00362 
00363   HOWTO (R_ARM_GLOB_DAT,  /* type */
00364          0,                     /* rightshift */
00365          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00366          32,                    /* bitsize */
00367          FALSE,                 /* pc_relative */
00368          0,                     /* bitpos */
00369          complain_overflow_bitfield,/* complain_on_overflow */
00370          bfd_elf_generic_reloc, /* special_function */
00371          "R_ARM_GLOB_DAT",  /* name */
00372          TRUE,      /* partial_inplace */
00373          0xffffffff,    /* src_mask */
00374          0xffffffff,    /* dst_mask */
00375          FALSE),                /* pcrel_offset */
00376 
00377   HOWTO (R_ARM_JUMP_SLOT, /* type */
00378          0,                     /* rightshift */
00379          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00380          32,                    /* bitsize */
00381          FALSE,                 /* pc_relative */
00382          0,                     /* bitpos */
00383          complain_overflow_bitfield,/* complain_on_overflow */
00384          bfd_elf_generic_reloc, /* special_function */
00385          "R_ARM_JUMP_SLOT", /* name */
00386          TRUE,      /* partial_inplace */
00387          0xffffffff,    /* src_mask */
00388          0xffffffff,    /* dst_mask */
00389          FALSE),                /* pcrel_offset */
00390 
00391   HOWTO (R_ARM_RELATIVE,  /* type */
00392          0,                     /* rightshift */
00393          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00394          32,                    /* bitsize */
00395          FALSE,                 /* pc_relative */
00396          0,                     /* bitpos */
00397          complain_overflow_bitfield,/* complain_on_overflow */
00398          bfd_elf_generic_reloc, /* special_function */
00399          "R_ARM_RELATIVE",  /* name */
00400          TRUE,      /* partial_inplace */
00401          0xffffffff,    /* src_mask */
00402          0xffffffff,    /* dst_mask */
00403          FALSE),                /* pcrel_offset */
00404 
00405   HOWTO (R_ARM_GOTOFF,    /* type */
00406          0,                     /* rightshift */
00407          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00408          32,                    /* bitsize */
00409          FALSE,                 /* pc_relative */
00410          0,                     /* bitpos */
00411          complain_overflow_bitfield,/* complain_on_overflow */
00412          bfd_elf_generic_reloc, /* special_function */
00413          "R_ARM_GOTOFF",  /* name */
00414          TRUE,      /* partial_inplace */
00415          0xffffffff,    /* src_mask */
00416          0xffffffff,    /* dst_mask */
00417          FALSE),                /* pcrel_offset */
00418 
00419   HOWTO (R_ARM_GOTPC,   /* type */
00420          0,                     /* rightshift */
00421          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00422          32,                    /* bitsize */
00423          TRUE,      /* pc_relative */
00424          0,                     /* bitpos */
00425          complain_overflow_bitfield,/* complain_on_overflow */
00426          bfd_elf_generic_reloc, /* special_function */
00427          "R_ARM_GOTPC",   /* name */
00428          TRUE,      /* partial_inplace */
00429          0xffffffff,    /* src_mask */
00430          0xffffffff,    /* dst_mask */
00431          TRUE),     /* pcrel_offset */
00432 
00433   HOWTO (R_ARM_GOT32,   /* type */
00434          0,                     /* rightshift */
00435          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00436          32,                    /* bitsize */
00437          FALSE,     /* pc_relative */
00438          0,                     /* bitpos */
00439          complain_overflow_bitfield,/* complain_on_overflow */
00440          bfd_elf_generic_reloc, /* special_function */
00441          "R_ARM_GOT32",   /* name */
00442          TRUE,      /* partial_inplace */
00443          0xffffffff,    /* src_mask */
00444          0xffffffff,    /* dst_mask */
00445          FALSE),    /* pcrel_offset */
00446 
00447   HOWTO (R_ARM_PLT32,   /* type */
00448          2,                     /* rightshift */
00449          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00450          26,                    /* bitsize */
00451          TRUE,      /* pc_relative */
00452          0,                     /* bitpos */
00453          complain_overflow_bitfield,/* complain_on_overflow */
00454          bfd_elf_generic_reloc, /* special_function */
00455          "R_ARM_PLT32",   /* name */
00456          TRUE,      /* partial_inplace */
00457          0x00ffffff,    /* src_mask */
00458          0x00ffffff,    /* dst_mask */
00459          TRUE),     /* pcrel_offset */
00460 
00461   /* End of relocs used in ARM Linux */
00462 
00463   HOWTO (R_ARM_RREL32,    /* type */
00464    0,     /* rightshift */
00465    0,     /* size (0 = byte, 1 = short, 2 = long) */
00466    0,     /* bitsize */
00467    FALSE,     /* pc_relative */
00468    0,     /* bitpos */
00469    complain_overflow_dont,/* complain_on_overflow */
00470    bfd_elf_generic_reloc, /* special_function */
00471    "R_ARM_RREL32",  /* name */
00472    FALSE,     /* partial_inplace */
00473    0,     /* src_mask */
00474    0,     /* dst_mask */
00475    FALSE),    /* pcrel_offset */
00476 
00477   HOWTO (R_ARM_RABS32,    /* type */
00478    0,     /* rightshift */
00479    0,     /* size (0 = byte, 1 = short, 2 = long) */
00480    0,     /* bitsize */
00481    FALSE,     /* pc_relative */
00482    0,     /* bitpos */
00483    complain_overflow_dont,/* complain_on_overflow */
00484    bfd_elf_generic_reloc, /* special_function */
00485    "R_ARM_RABS32",  /* name */
00486    FALSE,     /* partial_inplace */
00487    0,     /* src_mask */
00488    0,     /* dst_mask */
00489    FALSE),    /* pcrel_offset */
00490 
00491   HOWTO (R_ARM_RPC24,   /* type */
00492    0,     /* rightshift */
00493    0,     /* size (0 = byte, 1 = short, 2 = long) */
00494    0,     /* bitsize */
00495    FALSE,     /* pc_relative */
00496    0,     /* bitpos */
00497    complain_overflow_dont,/* complain_on_overflow */
00498    bfd_elf_generic_reloc, /* special_function */
00499    "R_ARM_RPC24",   /* name */
00500    FALSE,     /* partial_inplace */
00501    0,     /* src_mask */
00502    0,     /* dst_mask */
00503    FALSE),    /* pcrel_offset */
00504 
00505   HOWTO (R_ARM_RBASE,   /* type */
00506    0,     /* rightshift */
00507    0,     /* size (0 = byte, 1 = short, 2 = long) */
00508    0,     /* bitsize */
00509    FALSE,     /* pc_relative */
00510    0,     /* bitpos */
00511    complain_overflow_dont,/* complain_on_overflow */
00512    bfd_elf_generic_reloc, /* special_function */
00513    "R_ARM_RBASE",   /* name */
00514    FALSE,     /* partial_inplace */
00515    0,     /* src_mask */
00516    0,     /* dst_mask */
00517    FALSE),    /* pcrel_offset */
00518 
00519 };
00520 
00521   /* GNU extension to record C++ vtable hierarchy */
00522 static reloc_howto_type elf32_arm_vtinherit_howto =
00523   HOWTO (R_ARM_GNU_VTINHERIT, /* type */
00524          0,                     /* rightshift */
00525          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00526          0,                     /* bitsize */
00527          FALSE,                 /* pc_relative */
00528          0,                     /* bitpos */
00529          complain_overflow_dont, /* complain_on_overflow */
00530          NULL,                  /* special_function */
00531          "R_ARM_GNU_VTINHERIT", /* name */
00532          FALSE,                 /* partial_inplace */
00533          0,                     /* src_mask */
00534          0,                     /* dst_mask */
00535          FALSE);                /* pcrel_offset */
00536 
00537   /* GNU extension to record C++ vtable member usage */
00538 static reloc_howto_type elf32_arm_vtentry_howto =
00539   HOWTO (R_ARM_GNU_VTENTRY,     /* type */
00540          0,                     /* rightshift */
00541          2,                     /* size (0 = byte, 1 = short, 2 = long) */
00542          0,                     /* bitsize */
00543          FALSE,                 /* pc_relative */
00544          0,                     /* bitpos */
00545          complain_overflow_dont, /* complain_on_overflow */
00546          _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
00547          "R_ARM_GNU_VTENTRY",   /* name */
00548          FALSE,                 /* partial_inplace */
00549          0,                     /* src_mask */
00550          0,                     /* dst_mask */
00551          FALSE);                /* pcrel_offset */
00552 
00553   /* 12 bit pc relative */
00554 static reloc_howto_type elf32_arm_thm_pc11_howto =
00555   HOWTO (R_ARM_THM_PC11,  /* type */
00556    1,     /* rightshift */
00557    1,     /* size (0 = byte, 1 = short, 2 = long) */
00558    11,      /* bitsize */
00559    TRUE,      /* pc_relative */
00560    0,     /* bitpos */
00561    complain_overflow_signed,  /* complain_on_overflow */
00562    bfd_elf_generic_reloc, /* special_function */
00563    "R_ARM_THM_PC11",  /* name */
00564    FALSE,     /* partial_inplace */
00565    0x000007ff,    /* src_mask */
00566    0x000007ff,    /* dst_mask */
00567    TRUE);     /* pcrel_offset */
00568 
00569   /* 12 bit pc relative */
00570 static reloc_howto_type elf32_arm_thm_pc9_howto =
00571   HOWTO (R_ARM_THM_PC9,   /* type */
00572    1,     /* rightshift */
00573    1,     /* size (0 = byte, 1 = short, 2 = long) */
00574    8,     /* bitsize */
00575    TRUE,      /* pc_relative */
00576    0,     /* bitpos */
00577    complain_overflow_signed,  /* complain_on_overflow */
00578    bfd_elf_generic_reloc, /* special_function */
00579    "R_ARM_THM_PC9", /* name */
00580    FALSE,     /* partial_inplace */
00581    0x000000ff,    /* src_mask */
00582    0x000000ff,    /* dst_mask */
00583    TRUE);     /* pcrel_offset */
00584 
00585 static void elf32_arm_info_to_howto
00586   PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
00587 
00588 static void
00589 elf32_arm_info_to_howto (abfd, bfd_reloc, elf_reloc)
00590      bfd * abfd ATTRIBUTE_UNUSED;
00591      arelent * bfd_reloc;
00592      Elf_Internal_Rela * elf_reloc;
00593 {
00594   unsigned int r_type;
00595 
00596   r_type = ELF32_R_TYPE (elf_reloc->r_info);
00597 
00598   switch (r_type)
00599     {
00600     case R_ARM_GNU_VTINHERIT:
00601       bfd_reloc->howto = & elf32_arm_vtinherit_howto;
00602       break;
00603 
00604     case R_ARM_GNU_VTENTRY:
00605       bfd_reloc->howto = & elf32_arm_vtentry_howto;
00606       break;
00607 
00608     case R_ARM_THM_PC11:
00609       bfd_reloc->howto = & elf32_arm_thm_pc11_howto;
00610       break;
00611 
00612     case R_ARM_THM_PC9:
00613       bfd_reloc->howto = & elf32_arm_thm_pc9_howto;
00614       break;
00615 
00616     default:
00617       if (r_type >= NUM_ELEM (elf32_arm_howto_table))
00618   bfd_reloc->howto = NULL;
00619       else
00620         bfd_reloc->howto = & elf32_arm_howto_table[r_type];
00621       break;
00622     }
00623 }
00624 
00625 struct elf32_arm_reloc_map
00626   {
00627     bfd_reloc_code_real_type  bfd_reloc_val;
00628     unsigned char             elf_reloc_val;
00629   };
00630 
00631 static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] =
00632   {
00633     {BFD_RELOC_NONE,                 R_ARM_NONE},
00634     {BFD_RELOC_ARM_PCREL_BRANCH,     R_ARM_PC24},
00635     {BFD_RELOC_ARM_PCREL_BLX,        R_ARM_XPC25},
00636     {BFD_RELOC_THUMB_PCREL_BLX,      R_ARM_THM_XPC22},
00637     {BFD_RELOC_32,                   R_ARM_ABS32},
00638     {BFD_RELOC_32_PCREL,             R_ARM_REL32},
00639     {BFD_RELOC_8,                    R_ARM_ABS8},
00640     {BFD_RELOC_16,                   R_ARM_ABS16},
00641     {BFD_RELOC_ARM_OFFSET_IMM,       R_ARM_ABS12},
00642     {BFD_RELOC_ARM_THUMB_OFFSET,     R_ARM_THM_ABS5},
00643     {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22},
00644     {BFD_RELOC_ARM_COPY,             R_ARM_COPY},
00645     {BFD_RELOC_ARM_GLOB_DAT,         R_ARM_GLOB_DAT},
00646     {BFD_RELOC_ARM_JUMP_SLOT,        R_ARM_JUMP_SLOT},
00647     {BFD_RELOC_ARM_RELATIVE,         R_ARM_RELATIVE},
00648     {BFD_RELOC_ARM_GOTOFF,           R_ARM_GOTOFF},
00649     {BFD_RELOC_ARM_GOTPC,            R_ARM_GOTPC},
00650     {BFD_RELOC_ARM_GOT32,            R_ARM_GOT32},
00651     {BFD_RELOC_ARM_PLT32,            R_ARM_PLT32}
00652   };
00653 
00654 static reloc_howto_type *
00655 elf32_arm_reloc_type_lookup (abfd, code)
00656      bfd *abfd ATTRIBUTE_UNUSED;
00657      bfd_reloc_code_real_type code;
00658 {
00659   unsigned int i;
00660 
00661   switch (code)
00662     {
00663     case BFD_RELOC_VTABLE_INHERIT:
00664       return & elf32_arm_vtinherit_howto;
00665 
00666     case BFD_RELOC_VTABLE_ENTRY:
00667       return & elf32_arm_vtentry_howto;
00668 
00669     case BFD_RELOC_THUMB_PCREL_BRANCH12:
00670       return & elf32_arm_thm_pc11_howto;
00671 
00672     case BFD_RELOC_THUMB_PCREL_BRANCH9:
00673       return & elf32_arm_thm_pc9_howto;
00674 
00675     default:
00676       for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++)
00677   if (elf32_arm_reloc_map[i].bfd_reloc_val == code)
00678     return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val];
00679 
00680       return NULL;
00681    }
00682 }
00683 
00684 /* Support for core dump NOTE sections */
00685 static bfd_boolean
00686 elf32_arm_nabi_grok_prstatus (abfd, note)
00687      bfd *abfd;
00688      Elf_Internal_Note *note;
00689 {
00690   int offset;
00691   size_t raw_size;
00692 
00693   switch (note->descsz)
00694     {
00695       default:
00696   return FALSE;
00697 
00698       case 148:   /* Linux/ARM 32-bit*/
00699   /* pr_cursig */
00700   elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
00701 
00702   /* pr_pid */
00703   elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
00704 
00705   /* pr_reg */
00706   offset = 72;
00707   raw_size = 72;
00708 
00709   break;
00710     }
00711 
00712   /* Make a ".reg/999" section.  */
00713   return _bfd_elfcore_make_pseudosection (abfd, ".reg",
00714             raw_size, note->descpos + offset);
00715 }
00716 
00717 static bfd_boolean
00718 elf32_arm_nabi_grok_psinfo (abfd, note)
00719      bfd *abfd;
00720      Elf_Internal_Note *note;
00721 {
00722   switch (note->descsz)
00723     {
00724       default:
00725   return FALSE;
00726 
00727       case 124:   /* Linux/ARM elf_prpsinfo */
00728   elf_tdata (abfd)->core_program
00729    = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
00730   elf_tdata (abfd)->core_command
00731    = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
00732     }
00733 
00734   /* Note that for some reason, a spurious space is tacked
00735      onto the end of the args in some (at least one anyway)
00736      implementations, so strip it off if it exists.  */
00737 
00738   {
00739     char *command = elf_tdata (abfd)->core_command;
00740     int n = strlen (command);
00741 
00742     if (0 < n && command[n - 1] == ' ')
00743       command[n - 1] = '\0';
00744   }
00745 
00746   return TRUE;
00747 }
00748 
00749 #define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus
00750 #define elf_backend_grok_psinfo   elf32_arm_nabi_grok_psinfo
00751 
00752 #include "elf32-arm.h"