gcc/flag-types.h

   1 /* Compilation switch flag type definitions for GCC.
   2    Copyright (C) 1987-2016 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 /* Type of stack check.  */
 162 enum stack_check_type
 163 {
 164   /* Do not check the stack.  */
 165   NO_STACK_CHECK = 0,
 166
 167   /* Check the stack generically, i.e. assume no specific support
 168      from the target configuration files.  */
 169   GENERIC_STACK_CHECK,
 170
 171   /* Check the stack and rely on the target configuration files to
 172      check the static frame of functions, i.e. use the generic
 173      mechanism only for dynamic stack allocations.  */
 174   STATIC_BUILTIN_STACK_CHECK,
 175
 176   /* Check the stack and entirely rely on the target configuration
 177      files, i.e. do not use the generic mechanism at all.  */
 178   FULL_BUILTIN_STACK_CHECK
 179 };
 180
 181 /* Names for the different levels of -Wstrict-overflow=N.  The numeric
 182    values here correspond to N.  */
 183 enum warn_strict_overflow_code
 184 {
 185   /* Overflow warning that should be issued with -Wall: a questionable
 186      construct that is easy to avoid even when using macros.  Example:
 187      folding (x + CONSTANT > x) to 1.  */
 188   WARN_STRICT_OVERFLOW_ALL = 1,
 189   /* Overflow warning about folding a comparison to a constant because
 190      of undefined signed overflow, other than cases covered by
 191      WARN_STRICT_OVERFLOW_ALL.  Example: folding (abs (x) >= 0) to 1
 192      (this is false when x == INT_MIN).  */
 193   WARN_STRICT_OVERFLOW_CONDITIONAL = 2,
 194   /* Overflow warning about changes to comparisons other than folding
 195      them to a constant.  Example: folding (x + 1 > 1) to (x > 0).  */
 196   WARN_STRICT_OVERFLOW_COMPARISON = 3,
 197   /* Overflow warnings not covered by the above cases.  Example:
 198      folding ((x * 10) / 5) to (x * 2).  */
 199   WARN_STRICT_OVERFLOW_MISC = 4,
 200   /* Overflow warnings about reducing magnitude of constants in
 201      comparison.  Example: folding (x + 2 > y) to (x + 1 >= y).  */
 202   WARN_STRICT_OVERFLOW_MAGNITUDE = 5
 203 };
 204
 205 /* Floating-point contraction mode.  */
 206 enum fp_contract_mode {
 207   FP_CONTRACT_OFF = 0,
 208   FP_CONTRACT_ON = 1,
 209   FP_CONTRACT_FAST = 2
 210 };
 211
 212 /* Scalar storage order kind.  */
 213 enum scalar_storage_order_kind {
 214   SSO_NATIVE = 0,
 215   SSO_BIG_ENDIAN,
 216   SSO_LITTLE_ENDIAN
 217 };
 218
 219 /* Vectorizer cost-model.  */
 220 enum vect_cost_model {
 221   VECT_COST_MODEL_UNLIMITED = 0,
 222   VECT_COST_MODEL_CHEAP = 1,
 223   VECT_COST_MODEL_DYNAMIC = 2,
 224   VECT_COST_MODEL_DEFAULT = 3
 225 };
 226
 227 /* Different instrumentation modes.  */
 228 enum sanitize_code {
 229   /* AddressSanitizer.  */
 230   SANITIZE_ADDRESS = 1 << 0,
 231   SANITIZE_USER_ADDRESS = 1 << 1,
 232   SANITIZE_KERNEL_ADDRESS = 1 << 2,
 233   /* ThreadSanitizer.  */
 234   SANITIZE_THREAD = 1 << 3,
 235   /* LeakSanitizer.  */
 236   SANITIZE_LEAK = 1 << 4,
 237   /* UndefinedBehaviorSanitizer.  */
 238   SANITIZE_SHIFT = 1 << 5,
 239   SANITIZE_DIVIDE = 1 << 6,
 240   SANITIZE_UNREACHABLE = 1 << 7,
 241   SANITIZE_VLA = 1 << 8,
 242   SANITIZE_NULL = 1 << 9,
 243   SANITIZE_RETURN = 1 << 10,
 244   SANITIZE_SI_OVERFLOW = 1 << 11,
 245   SANITIZE_BOOL = 1 << 12,
 246   SANITIZE_ENUM = 1 << 13,
 247   SANITIZE_FLOAT_DIVIDE = 1 << 14,
 248   SANITIZE_FLOAT_CAST = 1 << 15,
 249   SANITIZE_BOUNDS = 1UL << 16,
 250   SANITIZE_ALIGNMENT = 1UL << 17,
 251   SANITIZE_NONNULL_ATTRIBUTE = 1UL << 18,
 252   SANITIZE_RETURNS_NONNULL_ATTRIBUTE = 1UL << 19,
 253   SANITIZE_OBJECT_SIZE = 1UL << 20,
 254   SANITIZE_VPTR = 1UL << 21,
 255   SANITIZE_BOUNDS_STRICT = 1UL << 22,
 256   SANITIZE_UNDEFINED = SANITIZE_SHIFT | SANITIZE_DIVIDE | SANITIZE_UNREACHABLE
 257                        | SANITIZE_VLA | SANITIZE_NULL | SANITIZE_RETURN
 258                        | SANITIZE_SI_OVERFLOW | SANITIZE_BOOL | SANITIZE_ENUM
 259                        | SANITIZE_BOUNDS | SANITIZE_ALIGNMENT
 260                        | SANITIZE_NONNULL_ATTRIBUTE
 261                        | SANITIZE_RETURNS_NONNULL_ATTRIBUTE
 262                        | SANITIZE_OBJECT_SIZE | SANITIZE_VPTR,
 263   SANITIZE_NONDEFAULT = SANITIZE_FLOAT_DIVIDE | SANITIZE_FLOAT_CAST
 264                         | SANITIZE_BOUNDS_STRICT
 265 };
 266
 267 /* flag_vtable_verify initialization levels. */
 268 enum vtv_priority {
 269   VTV_NO_PRIORITY       = 0,  /* i.E. Do NOT do vtable verification. */
 270   VTV_STANDARD_PRIORITY = 1,
 271   VTV_PREINIT_PRIORITY  = 2
 272 };
 273
 274 /* flag_lto_partition initialization values.  */
 275 enum lto_partition_model {
 276   LTO_PARTITION_NONE = 0,
 277   LTO_PARTITION_ONE = 1,
 278   LTO_PARTITION_BALANCED = 2,
 279   LTO_PARTITION_1TO1 = 3,
 280   LTO_PARTITION_MAX = 4
 281 };
 282
 283 /* flag_lto_linker_output initialization values.  */
 284 enum lto_linker_output {
 285   LTO_LINKER_OUTPUT_UNKNOWN,
 286   LTO_LINKER_OUTPUT_REL,
 287   LTO_LINKER_OUTPUT_DYN,
 288   LTO_LINKER_OUTPUT_PIE,
 289   LTO_LINKER_OUTPUT_EXEC
 290 };
 291
 292 /* gfortran -finit-real= values.  */
 293
 294 enum gfc_init_local_real
 295 {
 296   GFC_INIT_REAL_OFF = 0,
 297   GFC_INIT_REAL_ZERO,
 298   GFC_INIT_REAL_NAN,
 299   GFC_INIT_REAL_SNAN,
 300   GFC_INIT_REAL_INF,
 301   GFC_INIT_REAL_NEG_INF
 302 };
 303
 304 /* gfortran -fcoarray= values.  */
 305
 306 enum gfc_fcoarray
 307 {
 308   GFC_FCOARRAY_NONE = 0,
 309   GFC_FCOARRAY_SINGLE,
 310   GFC_FCOARRAY_LIB
 311 };
 312
 313
 314 /* gfortran -fconvert= values; used for unformatted I/O.
 315    Keep in sync with GFC_CONVERT_* in gcc/fortran/libgfortran.h.   */
 316 enum gfc_convert
 317 {
 318   GFC_FLAG_CONVERT_NATIVE = 0,
 319   GFC_FLAG_CONVERT_SWAP,
 320   GFC_FLAG_CONVERT_BIG,
 321   GFC_FLAG_CONVERT_LITTLE
 322 };
 323
 324
 325 #endif /* ! GCC_FLAG_TYPES_H */