gcc/config/arm/aarch-common.h

   1 /* Types shared between arm and aarch64.
   2
   3    Copyright (C) 2009-2024 Free Software Foundation, Inc.
   4    Contributed by Arm Ltd.
   5
   6    This file is part of GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 3, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GCC; see the file COPYING3.  If not see
  20    <http://www.gnu.org/licenses/>.  */
  21
  22 #ifndef GCC_AARCH_COMMON_H
  23 #define GCC_AARCH_COMMON_H
  24
  25 /* Enum describing the various ways that the
  26    aarch*_parse_{arch,tune,cpu,extension,fmv_extension} functions can fail.
  27    This way their callers can choose what kind of error to give.  */
  28
  29 enum aarch_parse_opt_result
  30 {
  31   AARCH_PARSE_OK,                       /* Parsing was successful.  */
  32   AARCH_PARSE_MISSING_ARG,              /* Missing argument.  */
  33   AARCH_PARSE_INVALID_FEATURE,          /* Invalid feature modifier.  */
  34   AARCH_PARSE_INVALID_ARG,              /* Invalid arch, tune, cpu arg.  */
  35   AARCH_PARSE_DUPLICATE_FEATURE         /* Duplicate feature modifier.  */
  36 };
  37
  38 /* Function types -msign-return-address should sign.  */
  39 enum aarch_function_type {
  40   /* Don't sign any function.  */
  41   AARCH_FUNCTION_NONE,
  42   /* Non-leaf functions.  */
  43   AARCH_FUNCTION_NON_LEAF,
  44   /* All functions.  */
  45   AARCH_FUNCTION_ALL
  46 };
  47
  48 /* The key type that -msign-return-address should use.  */
  49 enum aarch_key_type {
  50   AARCH_KEY_A,
  51   AARCH_KEY_B
  52 };
  53
  54 struct aarch_branch_protect_type
  55 {
  56   /* The type's name that the user passes to the branch-protection option
  57      string.  */
  58   const char* name;
  59   /* The type can only appear alone, other types should be rejected.  */
  60   int alone;
  61   /* Function to handle the protection type and set global variables.  */
  62   void (*handler)(void);
  63   /* A list of types that can follow this type in the option string.  */
  64   const struct aarch_branch_protect_type* subtypes;
  65   unsigned int num_subtypes;
  66 };
  67
  68 #endif /* GCC_AARCH_COMMON_H */