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      1 /* Compilation switch flag definitions for GCC.
      2    Copyright (C) 1987-2022 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 #ifndef GENERATOR_FILE
     44 /* Return true iff BTF debug info is enabled.  */
     45 
     46 extern bool btf_debuginfo_p ();
     47 
     48 /* Return true iff BTF with CO-RE debug info is enabled.  */
     49 
     50 extern bool btf_with_core_debuginfo_p ();
     51 
     52 /* Return true iff CTF debug info is enabled.  */
     53 
     54 extern bool ctf_debuginfo_p ();
     55 
     56 /* Return true iff DWARF2 debug info is enabled.  */
     57 
     58 extern bool dwarf_debuginfo_p (struct gcc_options *opts = &global_options);
     59 
     60 /* Return true iff the debug info format is to be generated based on DWARF
     61    DIEs (like CTF and BTF debug info formats).  */
     62 
     63 extern bool dwarf_based_debuginfo_p ();
     64 #endif
     65 
     66 extern void strip_off_ending (char *, int);
     67 extern int base_of_path (const char *path, const char **base_out);
     68 
     69 /* Return true iff flags are set as if -ffast-math.  */
     70 extern bool fast_math_flags_set_p (const struct gcc_options *);
     71 extern bool fast_math_flags_struct_set_p (struct cl_optimization *);
     72 
     73 
     74 /* Now the symbols that are set with `-f' switches.  */
     76 
     77 /* True if printing into -fdump-final-insns= dump.  */
     78 
     79 extern bool final_insns_dump_p;
     80 
     81 
     82 /* Other basic status info about current function.  */
     84 
     85 class target_flag_state
     86 {
     87 public:
     88   /* Each falign-foo can generate up to two levels of alignment:
     89      -falign-foo=N:M[:N2:M2] */
     90   align_flags x_align_loops;
     91   align_flags x_align_jumps;
     92   align_flags x_align_labels;
     93   align_flags x_align_functions;
     94 };
     95 
     96 extern class target_flag_state default_target_flag_state;
     97 #if SWITCHABLE_TARGET
     98 extern class target_flag_state *this_target_flag_state;
     99 #else
    100 #define this_target_flag_state (&default_target_flag_state)
    101 #endif
    102 
    103 #define align_loops	 (this_target_flag_state->x_align_loops)
    104 #define align_jumps	 (this_target_flag_state->x_align_jumps)
    105 #define align_labels	 (this_target_flag_state->x_align_labels)
    106 #define align_functions	 (this_target_flag_state->x_align_functions)
    107 
    108 /* Returns TRUE if generated code should match ABI version N or
    109    greater is in use.  */
    110 
    111 #define abi_version_at_least(N) \
    112   (flag_abi_version == 0 || flag_abi_version >= (N))
    113 
    114 /* Whether to emit an overflow warning whose code is C.  */
    115 #define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c))
    116 
    117 #endif
    118 
    119 #endif /* ! GCC_FLAGS_H */
    120