gcc/flags.h

   1 /* Compilation switch flag definitions for GCC.
   2    Copyright (C) 1987-2021 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 3, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 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 #ifndef GCC_FLAGS_H
  21 #define GCC_FLAGS_H
  22
  23 #if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)
  24
  25 /* Names of fundamental debug info formats indexed by enum
  26    debug_info_type.  */
  27
  28 extern const char *const debug_type_names[];
  29
  30 /* Get enum debug_info_type of the specified debug format, for error messages.
  31    Can be used only for individual debug format types.  */
  32
  33 extern enum debug_info_type debug_set_to_format (uint32_t debug_info_set);
  34
  35 /* Get the number of debug formats enabled for output.  */
  36
  37 unsigned int debug_set_count (uint32_t w_symbols);
  38
  39 /* Get the names of the debug formats enabled for output.  */
  40
  41 const char * debug_set_names (uint32_t w_symbols);
  42
  43 /* Return true iff BTF debug info is enabled.  */
  44
  45 extern bool btf_debuginfo_p ();
  46
  47 /* Return true iff BTF with CO-RE debug info is enabled.  */
  48
  49 extern bool btf_with_core_debuginfo_p ();
  50
  51 /* Return true iff CTF debug info is enabled.  */
  52
  53 extern bool ctf_debuginfo_p ();
  54
  55 /* Return true iff DWARF2 debug info is enabled.  */
  56
  57 extern bool dwarf_debuginfo_p ();
  58
  59 /* Return true iff the debug info format is to be generated based on DWARF
  60    DIEs (like CTF and BTF debug info formats).  */
  61
  62 extern bool dwarf_based_debuginfo_p ();
  63
  64 extern void strip_off_ending (char *, int);
  65 extern int base_of_path (const char *path, const char **base_out);
  66
  67 /* Return true iff flags are set as if -ffast-math.  */
  68 extern bool fast_math_flags_set_p (const struct gcc_options *);
  69 extern bool fast_math_flags_struct_set_p (struct cl_optimization *);
  70
  71 \f
  72 /* Now the symbols that are set with `-f' switches.  */
  73
  74 /* True if printing into -fdump-final-insns= dump.  */
  75
  76 extern bool final_insns_dump_p;
  77
  78 \f
  79 /* Other basic status info about current function.  */
  80
  81 class target_flag_state
  82 {
  83 public:
  84   /* Each falign-foo can generate up to two levels of alignment:
  85      -falign-foo=N:M[:N2:M2] */
  86   align_flags x_align_loops;
  87   align_flags x_align_jumps;
  88   align_flags x_align_labels;
  89   align_flags x_align_functions;
  90 };
  91
  92 extern class target_flag_state default_target_flag_state;
  93 #if SWITCHABLE_TARGET
  94 extern class target_flag_state *this_target_flag_state;
  95 #else
  96 #define this_target_flag_state (&default_target_flag_state)
  97 #endif
  98
  99 #define align_loops      (this_target_flag_state->x_align_loops)
 100 #define align_jumps      (this_target_flag_state->x_align_jumps)
 101 #define align_labels     (this_target_flag_state->x_align_labels)
 102 #define align_functions  (this_target_flag_state->x_align_functions)
 103
 104 /* Returns TRUE if generated code should match ABI version N or
 105    greater is in use.  */
 106
 107 #define abi_version_at_least(N) \
 108   (flag_abi_version == 0 || flag_abi_version >= (N))
 109
 110 /* Whether to emit an overflow warning whose code is C.  */
 111 #define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c))
 112
 113 #endif
 114
 115 #endif /* ! GCC_FLAGS_H */