1 /* Compilation switch flag type definitions for GCC. 2 Copyright (C) 1987-2013 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_FLAG_TYPES_H 21 #define GCC_FLAG_TYPES_H 22 23 enum debug_info_type 24 { 25 NO_DEBUG, /* Write no debug info. */ 26 DBX_DEBUG, /* Write BSD .stabs for DBX (using dbxout.c). */ 27 SDB_DEBUG, /* Write COFF for (old) SDB (using sdbout.c). */ 28 DWARF2_DEBUG, /* Write Dwarf v2 debug info (using dwarf2out.c). */ 29 XCOFF_DEBUG, /* Write IBM/Xcoff debug info (using dbxout.c). */ 30 VMS_DEBUG, /* Write VMS debug info (using vmsdbgout.c). */ 31 VMS_AND_DWARF2_DEBUG /* Write VMS debug info (using vmsdbgout.c). 32 and DWARF v2 debug info (using dwarf2out.c). */ 33 }; 34 35 enum debug_info_levels 36 { 37 DINFO_LEVEL_NONE, /* Write no debugging info. */ 38 DINFO_LEVEL_TERSE, /* Write minimal info to support tracebacks only. */ 39 DINFO_LEVEL_NORMAL, /* Write info for all declarations (and line table). */ 40 DINFO_LEVEL_VERBOSE /* Write normal info plus #define/#undef info. */ 41 }; 42 43 /* A major contribution to object and executable size is debug 44 information size. A major contribution to debug information 45 size is struct descriptions replicated in several object files. 46 The following function determines whether or not debug information 47 should be generated for a given struct. The indirect parameter 48 indicates that the struct is being handled indirectly, via 49 a pointer. See opts.c for the implementation. */ 50 51 enum debug_info_usage 52 { 53 DINFO_USAGE_DFN, /* A struct definition. */ 54 DINFO_USAGE_DIR_USE, /* A direct use, such as the type of a variable. */ 55 DINFO_USAGE_IND_USE, /* An indirect use, such as through a pointer. */ 56 DINFO_USAGE_NUM_ENUMS /* The number of enumerators. */ 57 }; 58 59 /* A major contribution to object and executable size is debug 60 information size. A major contribution to debug information size 61 is struct descriptions replicated in several object files. The 62 following flags attempt to reduce this information. The basic 63 idea is to not emit struct debugging information in the current 64 compilation unit when that information will be generated by 65 another compilation unit. 66 67 Debug information for a struct defined in the current source 68 file should be generated in the object file. Likewise the 69 debug information for a struct defined in a header should be 70 generated in the object file of the corresponding source file. 71 Both of these case are handled when the base name of the file of 72 the struct definition matches the base name of the source file 73 of the current compilation unit. This matching emits minimal 74 struct debugging information. 75 76 The base file name matching rule above will fail to emit debug 77 information for structs defined in system headers. So a second 78 category of files includes system headers in addition to files 79 with matching bases. 80 81 The remaining types of files are library headers and application 82 headers. We cannot currently distinguish these two types. */ 83 84 enum debug_struct_file 85 { 86 DINFO_STRUCT_FILE_NONE, /* Debug no structs. */ 87 DINFO_STRUCT_FILE_BASE, /* Debug structs defined in files with the 88 same base name as the compilation unit. */ 89 DINFO_STRUCT_FILE_SYS, /* Also debug structs defined in system 90 header files. */ 91 DINFO_STRUCT_FILE_ANY /* Debug structs defined in all files. */ 92 }; 93 94 /* Enumerate visibility settings. This is deliberately ordered from most 95 to least visibility. */ 96 #ifndef SYMBOL_VISIBILITY_DEFINED 97 #define SYMBOL_VISIBILITY_DEFINED 98 enum symbol_visibility 99 { 100 VISIBILITY_DEFAULT, 101 VISIBILITY_PROTECTED, 102 VISIBILITY_HIDDEN, 103 VISIBILITY_INTERNAL 104 }; 105 #endif 106 107 /* The stack reuse level. */ 108 enum stack_reuse_level 109 { 110 SR_NONE, 111 SR_NAMED_VARS, 112 SR_ALL 113 }; 114 115 /* The algorithm used for the integrated register allocator (IRA). */ 116 enum ira_algorithm 117 { 118 IRA_ALGORITHM_CB, 119 IRA_ALGORITHM_PRIORITY 120 }; 121 122 /* The regions used for the integrated register allocator (IRA). */ 123 enum ira_region 124 { 125 IRA_REGION_ONE, 126 IRA_REGION_ALL, 127 IRA_REGION_MIXED, 128 /* This value means that there were no options -fira-region on the 129 command line and that we should choose a value depending on the 130 used -O option. */ 131 IRA_REGION_AUTODETECT 132 }; 133 134 /* The options for excess precision. */ 135 enum excess_precision 136 { 137 EXCESS_PRECISION_DEFAULT, 138 EXCESS_PRECISION_FAST, 139 EXCESS_PRECISION_STANDARD 140 }; 141 142 /* Type of stack check. */ 143 enum stack_check_type 144 { 145 /* Do not check the stack. */ 146 NO_STACK_CHECK = 0, 147 148 /* Check the stack generically, i.e. assume no specific support 149 from the target configuration files. */ 150 GENERIC_STACK_CHECK, 151 152 /* Check the stack and rely on the target configuration files to 153 check the static frame of functions, i.e. use the generic 154 mechanism only for dynamic stack allocations. */ 155 STATIC_BUILTIN_STACK_CHECK, 156 157 /* Check the stack and entirely rely on the target configuration 158 files, i.e. do not use the generic mechanism at all. */ 159 FULL_BUILTIN_STACK_CHECK 160 }; 161 162 /* Names for the different levels of -Wstrict-overflow=N. The numeric 163 values here correspond to N. */ 164 165 enum warn_strict_overflow_code 166 { 167 /* Overflow warning that should be issued with -Wall: a questionable 168 construct that is easy to avoid even when using macros. Example: 169 folding (x + CONSTANT > x) to 1. */ 170 WARN_STRICT_OVERFLOW_ALL = 1, 171 /* Overflow warning about folding a comparison to a constant because 172 of undefined signed overflow, other than cases covered by 173 WARN_STRICT_OVERFLOW_ALL. Example: folding (abs (x) >= 0) to 1 174 (this is false when x == INT_MIN). */ 175 WARN_STRICT_OVERFLOW_CONDITIONAL = 2, 176 /* Overflow warning about changes to comparisons other than folding 177 them to a constant. Example: folding (x + 1 > 1) to (x > 0). */ 178 WARN_STRICT_OVERFLOW_COMPARISON = 3, 179 /* Overflow warnings not covered by the above cases. Example: 180 folding ((x * 10) / 5) to (x * 2). */ 181 WARN_STRICT_OVERFLOW_MISC = 4, 182 /* Overflow warnings about reducing magnitude of constants in 183 comparison. Example: folding (x + 2 > y) to (x + 1 >= y). */ 184 WARN_STRICT_OVERFLOW_MAGNITUDE = 5 185 }; 186 187 /* Floating-point contraction mode. */ 188 enum fp_contract_mode { 189 FP_CONTRACT_OFF = 0, 190 FP_CONTRACT_ON = 1, 191 FP_CONTRACT_FAST = 2 192 }; 193 194 #endif /* ! GCC_FLAG_TYPES_H */ 195
