gcc/config/aarch64/aarch64-opts.h

   1 /* Copyright (C) 2011-2015 Free Software Foundation, Inc.
   2    Contributed by ARM Ltd.
   3
   4    This file is part of GCC.
   5
   6    GCC is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published
   8    by the Free Software Foundation; either version 3, or (at your
   9    option) any later version.
  10
  11    GCC is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GCC; see the file COPYING3.  If not see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 /* Definitions for option handling for AArch64.  */
  21
  22 #ifndef GCC_AARCH64_OPTS_H
  23 #define GCC_AARCH64_OPTS_H
  24
  25 /* The various cores that implement AArch64.  */
  26 enum aarch64_processor
  27 {
  28 #define AARCH64_CORE(NAME, INTERNAL_IDENT, SCHED, ARCH, FLAGS, COSTS, IMP, PART) \
  29   INTERNAL_IDENT,
  30 #include "aarch64-cores.def"
  31 #undef AARCH64_CORE
  32   /* Used to indicate that no processor has been specified.  */
  33   generic,
  34   /* Used to mark the end of the processor table.  */
  35   aarch64_none
  36 };
  37
  38 /* TLS types.  */
  39 enum aarch64_tls_type {
  40   TLS_TRADITIONAL,
  41   TLS_DESCRIPTORS
  42 };
  43
  44 /* The code model defines the address generation strategy.
  45    Most have a PIC and non-PIC variant.  */
  46 enum aarch64_code_model {
  47   /* Static code and data fit within a 1MB region.
  48      Not fully implemented, mostly treated as SMALL.  */
  49   AARCH64_CMODEL_TINY,
  50   /* Static code, data and GOT/PLT fit within a 1MB region.
  51      Not fully implemented, mostly treated as SMALL_PIC.  */
  52   AARCH64_CMODEL_TINY_PIC,
  53   /* Static code and data fit within a 4GB region.
  54      The default non-PIC code model.  */
  55   AARCH64_CMODEL_SMALL,
  56   /* Static code, data and GOT/PLT fit within a 4GB region.
  57      The default PIC code model.  */
  58   AARCH64_CMODEL_SMALL_PIC,
  59   /* -fpic for small memory model.
  60      GOT size to 28KiB (4K*8-4K) or 3580 entries.  */
  61   AARCH64_CMODEL_SMALL_SPIC,
  62   /* No assumptions about addresses of code and data.
  63      The PIC variant is not yet implemented.  */
  64   AARCH64_CMODEL_LARGE
  65 };
  66
  67 #endif