gcc/config/aarch64/aarch64-errata.h

   1 /* Machine description for AArch64 architecture.
   2    Copyright (C) 2009-2025 Free Software Foundation, Inc.
   3    Contributed by ARM Ltd.
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3, or (at your option)
  10    any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef GCC_AARCH64_ERRATA_H
  22 #define GCC_AARCH64_ERRATA_H
  23
  24 /* Completely ignore the option if we've explicitly specify something other than
  25    mcpu=cortex-a53 or march=armv8-a.  */
  26 #define TARGET_SUPPRESS_OPT_SPEC(OPT) \
  27     "mcpu=*:%{%:is_local_not_armv8_base(%{mcpu=*:%*}):; " OPT \
  28     "}; march=*:%{%:is_local_not_armv8_base(%{march=*:%*}):;" OPT "}; " OPT
  29
  30 /* Explicitly turn off the option if we've explicitly specify something other
  31    than mcpu=cortex-a53 or march=armv8-a.  This will also erase any other usage
  32    of the flag making the order of the options not relevant.  */
  33 # define TARGET_TURN_OFF_OPT_SPEC(FLAG)  \
  34    "mcpu=*:%{%:is_local_not_armv8_base(%{mcpu=*:%*}):%<m" FLAG " -mno-" FLAG \
  35    "}; march=*:%{%:is_local_not_armv8_base(%{march=*:%*}):%<m" FLAG " -mno-" FLAG "}"
  36
  37 /* Cortex-A53 835769 Errata.  */
  38
  39 #if TARGET_FIX_ERR_A53_835769_DEFAULT
  40 #define CA53_ERR_835769_SPEC     \
  41   " %{" \
  42   TARGET_SUPPRESS_OPT_SPEC ("!mno-fix-cortex-a53-835769:--fix-cortex-a53-835769") \
  43   " }"
  44 #else
  45 #define CA53_ERR_835769_SPEC     \
  46   " %{" \
  47   TARGET_SUPPRESS_OPT_SPEC ("mfix-cortex-a53-835769:--fix-cortex-a53-835769") \
  48   " }"
  49 #endif
  50
  51 #define CA53_ERR_835769_COMPILE_SPEC \
  52   " %{" TARGET_TURN_OFF_OPT_SPEC ("fix-cortex-a53-835769") "}"
  53
  54 /* Cortex-A53 843419 Errata.  */
  55
  56 #if TARGET_FIX_ERR_A53_843419_DEFAULT
  57 #define CA53_ERR_843419_SPEC     \
  58   " %{" \
  59   TARGET_SUPPRESS_OPT_SPEC ("!mno-fix-cortex-a53-843419:--fix-cortex-a53-843419") \
  60   " }"
  61 #else
  62 #define CA53_ERR_843419_SPEC     \
  63   " %{" \
  64   TARGET_SUPPRESS_OPT_SPEC ("mfix-cortex-a53-843419:--fix-cortex-a53-843419") \
  65   " }"
  66 #endif
  67
  68 #define CA53_ERR_843419_COMPILE_SPEC \
  69   " %{" TARGET_TURN_OFF_OPT_SPEC ("fix-cortex-a53-843419") "}"
  70
  71 /* Exports to use in SPEC files.  */
  72
  73 #define AARCH64_ERRATA_LINK_SPEC                \
  74   CA53_ERR_835769_SPEC                          \
  75   CA53_ERR_843419_SPEC
  76
  77 #define AARCH64_ERRATA_COMPILE_SPEC             \
  78   CA53_ERR_835769_COMPILE_SPEC                  \
  79   CA53_ERR_843419_COMPILE_SPEC
  80
  81 #endif /*  GCC_AARCH64_ERRATA_H */