gcc/flag-types.h

   1 /* Compilation switch flag type definitions for GCC.
   2    Copyright (C) 1987-2017 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 /* Balance between GNAT encodings and standard DWARF to emit.  */
  95
  96 enum dwarf_gnat_encodings
  97 {
  98   DWARF_GNAT_ENCODINGS_ALL = 0,     /* Emit all GNAT encodings, then emit as
  99                                        much standard DWARF as possible so it
 100                                        does not conflict with GNAT
 101                                        encodings.  */
 102   DWARF_GNAT_ENCODINGS_GDB = 1,     /* Emit as much standard DWARF as possible
 103                                        as long as GDB handles them.  Emit GNAT
 104                                        encodings for the rest.  */
 105   DWARF_GNAT_ENCODINGS_MINIMAL = 2  /* Emit all the standard DWARF we can.
 106                                        Emit GNAT encodings for the rest.  */
 107 };
 108
 109 /* Enumerate Objective-c instance variable visibility settings. */
 110
 111 enum ivar_visibility
 112 {
 113   IVAR_VISIBILITY_PRIVATE,
 114   IVAR_VISIBILITY_PROTECTED,
 115   IVAR_VISIBILITY_PUBLIC,
 116   IVAR_VISIBILITY_PACKAGE
 117 };
 118
 119 /* The stack reuse level.  */
 120 enum stack_reuse_level
 121 {
 122   SR_NONE,
 123   SR_NAMED_VARS,
 124   SR_ALL
 125 };
 126
 127 /* The algorithm used for basic block reordering.  */
 128 enum reorder_blocks_algorithm
 129 {
 130   REORDER_BLOCKS_ALGORITHM_SIMPLE,
 131   REORDER_BLOCKS_ALGORITHM_STC
 132 };
 133
 134 /* The algorithm used for the integrated register allocator (IRA).  */
 135 enum ira_algorithm
 136 {
 137   IRA_ALGORITHM_CB,
 138   IRA_ALGORITHM_PRIORITY
 139 };
 140
 141 /* The regions used for the integrated register allocator (IRA).  */
 142 enum ira_region
 143 {
 144   IRA_REGION_ONE,
 145   IRA_REGION_ALL,
 146   IRA_REGION_MIXED,
 147   /* This value means that there were no options -fira-region on the
 148      command line and that we should choose a value depending on the
 149      used -O option.  */
 150   IRA_REGION_AUTODETECT
 151 };
 152
 153 /* The options for excess precision.  */
 154 enum excess_precision
 155 {
 156   EXCESS_PRECISION_DEFAULT,
 157   EXCESS_PRECISION_FAST,
 158   EXCESS_PRECISION_STANDARD
 159 };
 160
 161 /* The options for which values of FLT_EVAL_METHOD are permissible.  */
 162 enum permitted_flt_eval_methods
 163 {
 164   PERMITTED_FLT_EVAL_METHODS_DEFAULT,
 165   PERMITTED_FLT_EVAL_METHODS_TS_18661,
 166   PERMITTED_FLT_EVAL_METHODS_C11
 167 };
 168
 169 /* Type of stack check.  */
 170 enum stack_check_type
 171 {
 172   /* Do not check the stack.  */
 173   NO_STACK_CHECK = 0,
 174
 175   /* Check the stack generically, i.e. assume no specific support
 176      from the target configuration files.  */
 177   GENERIC_STACK_CHECK,
 178
 179   /* Check the stack and rely on the target configuration files to
 180      check the static frame of functions, i.e. use the generic
 181      mechanism only for dynamic stack allocations.  */
 182   STATIC_BUILTIN_STACK_CHECK,
 183
 184   /* Check the stack and entirely rely on the target configuration
 185      files, i.e. do not use the generic mechanism at all.  */
 186   FULL_BUILTIN_STACK_CHECK
 187 };
 188
 189 /* Floating-point contraction mode.  */
 190 enum fp_contract_mode {
 191   FP_CONTRACT_OFF = 0,
 192   FP_CONTRACT_ON = 1,
 193   FP_CONTRACT_FAST = 2
 194 };
 195
 196 /* Scalar storage order kind.  */
 197 enum scalar_storage_order_kind {
 198   SSO_NATIVE = 0,
 199   SSO_BIG_ENDIAN,
 200   SSO_LITTLE_ENDIAN
 201 };
 202
 203 /* Vectorizer cost-model.  */
 204 enum vect_cost_model {
 205   VECT_COST_MODEL_UNLIMITED = 0,
 206   VECT_COST_MODEL_CHEAP = 1,
 207   VECT_COST_MODEL_DYNAMIC = 2,
 208   VECT_COST_MODEL_DEFAULT = 3
 209 };
 210
 211 /* Different instrumentation modes.  */
 212 enum sanitize_code {
 213   /* AddressSanitizer.  */
 214   SANITIZE_ADDRESS = 1UL << 0,
 215   SANITIZE_USER_ADDRESS = 1UL << 1,
 216   SANITIZE_KERNEL_ADDRESS = 1UL << 2,
 217   /* ThreadSanitizer.  */
 218   SANITIZE_THREAD = 1UL << 3,
 219   /* LeakSanitizer.  */
 220   SANITIZE_LEAK = 1UL << 4,
 221   /* UndefinedBehaviorSanitizer.  */
 222   SANITIZE_SHIFT_BASE = 1UL << 5,
 223   SANITIZE_SHIFT_EXPONENT = 1UL << 6,
 224   SANITIZE_DIVIDE = 1UL << 7,
 225   SANITIZE_UNREACHABLE = 1UL << 8,
 226   SANITIZE_VLA = 1UL << 9,
 227   SANITIZE_NULL = 1UL << 10,
 228   SANITIZE_RETURN = 1UL << 11,
 229   SANITIZE_SI_OVERFLOW = 1UL << 12,
 230   SANITIZE_BOOL = 1UL << 13,
 231   SANITIZE_ENUM = 1UL << 14,
 232   SANITIZE_FLOAT_DIVIDE = 1UL << 15,
 233   SANITIZE_FLOAT_CAST = 1UL << 16,
 234   SANITIZE_BOUNDS = 1UL << 17,
 235   SANITIZE_ALIGNMENT = 1UL << 18,
 236   SANITIZE_NONNULL_ATTRIBUTE = 1UL << 19,
 237   SANITIZE_RETURNS_NONNULL_ATTRIBUTE = 1UL << 20,
 238   SANITIZE_OBJECT_SIZE = 1UL << 21,
 239   SANITIZE_VPTR = 1UL << 22,
 240   SANITIZE_BOUNDS_STRICT = 1UL << 23,
 241   SANITIZE_POINTER_OVERFLOW = 1UL << 24,
 242   SANITIZE_SHIFT = SANITIZE_SHIFT_BASE | SANITIZE_SHIFT_EXPONENT,
 243   SANITIZE_UNDEFINED = SANITIZE_SHIFT | SANITIZE_DIVIDE | SANITIZE_UNREACHABLE
 244                        | SANITIZE_VLA | SANITIZE_NULL | SANITIZE_RETURN
 245                        | SANITIZE_SI_OVERFLOW | SANITIZE_BOOL | SANITIZE_ENUM
 246                        | SANITIZE_BOUNDS | SANITIZE_ALIGNMENT
 247                        | SANITIZE_NONNULL_ATTRIBUTE
 248                        | SANITIZE_RETURNS_NONNULL_ATTRIBUTE
 249                        | SANITIZE_OBJECT_SIZE | SANITIZE_VPTR
 250                        | SANITIZE_POINTER_OVERFLOW,
 251   SANITIZE_UNDEFINED_NONDEFAULT = SANITIZE_FLOAT_DIVIDE | SANITIZE_FLOAT_CAST
 252                                   | SANITIZE_BOUNDS_STRICT
 253 };
 254
 255 /* flag_vtable_verify initialization levels. */
 256 enum vtv_priority {
 257   VTV_NO_PRIORITY       = 0,  /* i.E. Do NOT do vtable verification. */
 258   VTV_STANDARD_PRIORITY = 1,
 259   VTV_PREINIT_PRIORITY  = 2
 260 };
 261
 262 /* flag_lto_partition initialization values.  */
 263 enum lto_partition_model {
 264   LTO_PARTITION_NONE = 0,
 265   LTO_PARTITION_ONE = 1,
 266   LTO_PARTITION_BALANCED = 2,
 267   LTO_PARTITION_1TO1 = 3,
 268   LTO_PARTITION_MAX = 4
 269 };
 270
 271 /* flag_lto_linker_output initialization values.  */
 272 enum lto_linker_output {
 273   LTO_LINKER_OUTPUT_UNKNOWN,
 274   LTO_LINKER_OUTPUT_REL,
 275   LTO_LINKER_OUTPUT_DYN,
 276   LTO_LINKER_OUTPUT_PIE,
 277   LTO_LINKER_OUTPUT_EXEC
 278 };
 279
 280 /* gfortran -finit-real= values.  */
 281
 282 enum gfc_init_local_real
 283 {
 284   GFC_INIT_REAL_OFF = 0,
 285   GFC_INIT_REAL_ZERO,
 286   GFC_INIT_REAL_NAN,
 287   GFC_INIT_REAL_SNAN,
 288   GFC_INIT_REAL_INF,
 289   GFC_INIT_REAL_NEG_INF
 290 };
 291
 292 /* gfortran -fcoarray= values.  */
 293
 294 enum gfc_fcoarray
 295 {
 296   GFC_FCOARRAY_NONE = 0,
 297   GFC_FCOARRAY_SINGLE,
 298   GFC_FCOARRAY_LIB
 299 };
 300
 301
 302 /* gfortran -fconvert= values; used for unformatted I/O.
 303    Keep in sync with GFC_CONVERT_* in gcc/fortran/libgfortran.h.   */
 304 enum gfc_convert
 305 {
 306   GFC_FLAG_CONVERT_NATIVE = 0,
 307   GFC_FLAG_CONVERT_SWAP,
 308   GFC_FLAG_CONVERT_BIG,
 309   GFC_FLAG_CONVERT_LITTLE
 310 };
 311
 312
 313 #endif /* ! GCC_FLAG_TYPES_H */