gcc/analyzer/analyzer.opt

   1 ; analyzer.opt -- Options for the analyzer.
   2
   3 ; Copyright (C) 2019-2022 Free Software Foundation, Inc.
   4 ;
   5 ; This file is part of GCC.
   6 ;
   7 ; GCC is free software; you can redistribute it and/or modify it under
   8 ; the terms of the GNU General Public License as published by the Free
   9 ; Software Foundation; either version 3, or (at your option) any later
  10 ; version.
  11 ;
  12 ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 ; WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 ; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 ; for more details.
  16 ;
  17 ; You should have received a copy of the GNU General Public License
  18 ; along with GCC; see the file COPYING3.  If not see
  19 ; <http://www.gnu.org/licenses/>.
  20
  21 ; See the GCC internals manual for a description of this file's format.
  22
  23 ; Please try to keep this file in ASCII collating order.
  24
  25 -param=analyzer-bb-explosion-factor=
  26 Common Joined UInteger Var(param_analyzer_bb_explosion_factor) Init(5) Param
  27 The maximum number of 'after supernode' exploded nodes within the analyzer per supernode, before terminating analysis.
  28
  29 -param=analyzer-max-enodes-per-program-point=
  30 Common Joined UInteger Var(param_analyzer_max_enodes_per_program_point) Init(8) Param
  31 The maximum number of exploded nodes per program point within the analyzer, before terminating analysis of that point.
  32
  33 -param=analyzer-max-constraints=
  34 Common Joined UInteger Var(param_analyzer_max_constraints) Init(20) Param
  35 The maximum number of constraints per state.
  36
  37 -param=analyzer-max-infeasible-edges=
  38 Common Joined UInteger Var(param_analyzer_max_infeasible_edges) Init(10) Param
  39 The maximum number of infeasible edges to reject before declaring a diagnostic as infeasible.
  40
  41 -param=analyzer-max-recursion-depth=
  42 Common Joined UInteger Var(param_analyzer_max_recursion_depth) Init(2) Param
  43 The maximum number of times a callsite can appear in a call stack within the analyzer, before terminating analysis of a call that would recurse deeper.
  44
  45 -param=analyzer-max-svalue-depth=
  46 Common Joined UInteger Var(param_analyzer_max_svalue_depth) Init(13) Param
  47 The maximum depth of a symbolic value, before approximating the value as unknown.
  48
  49 -param=analyzer-min-snodes-for-call-summary=
  50 Common Joined UInteger Var(param_analyzer_min_snodes_for_call_summary) Init(10) Param
  51 The minimum number of supernodes within a function for the analyzer to consider summarizing its effects at call sites.
  52
  53 -param=analyzer-max-enodes-for-full-dump=
  54 Common Joined UInteger Var(param_analyzer_max_enodes_for_full_dump) Init(200) Param
  55 The maximum depth of exploded nodes that should appear in a dot dump before switching to a less verbose format.
  56
  57 Wanalyzer-double-fclose
  58 Common Var(warn_analyzer_double_fclose) Init(1) Warning
  59 Warn about code paths in which a stdio FILE can be closed more than once.
  60
  61 Wanalyzer-double-free
  62 Common Var(warn_analyzer_double_free) Init(1) Warning
  63 Warn about code paths in which a pointer can be freed more than once.
  64
  65 Wanalyzer-exposure-through-output-file
  66 Common Var(warn_analyzer_exposure_through_output_file) Init(1) Warning
  67 Warn about code paths in which sensitive data is written to a file.
  68
  69 Wanalyzer-file-leak
  70 Common Var(warn_analyzer_file_leak) Init(1) Warning
  71 Warn about code paths in which a stdio FILE is not closed.
  72
  73 Wanalyzer-free-of-non-heap
  74 Common Var(warn_analyzer_free_of_non_heap) Init(1) Warning
  75 Warn about code paths in which a non-heap pointer is freed.
  76
  77 Wanalyzer-malloc-leak
  78 Common Var(warn_analyzer_malloc_leak) Init(1) Warning
  79 Warn about code paths in which a heap-allocated pointer leaks.
  80
  81 Wanalyzer-mismatching-deallocation
  82 Common Var(warn_analyzer_mismatching_deallocation) Init(1) Warning
  83 Warn about code paths in which the wrong deallocation function is called.
  84
  85 Wanalyzer-possible-null-argument
  86 Common Var(warn_analyzer_possible_null_argument) Init(1) Warning
  87 Warn about code paths in which a possibly-NULL value is passed to a must-not-be-NULL function argument.
  88
  89 Wanalyzer-possible-null-dereference
  90 Common Var(warn_analyzer_possible_null_dereference) Init(1) Warning
  91 Warn about code paths in which a possibly-NULL pointer is dereferenced.
  92
  93 Wanalyzer-unsafe-call-within-signal-handler
  94 Common Var(warn_analyzer_unsafe_call_within_signal_handler) Init(1) Warning
  95 Warn about code paths in which an async-signal-unsafe function is called from a signal handler.
  96
  97 Wanalyzer-null-argument
  98 Common Var(warn_analyzer_null_argument) Init(1) Warning
  99 Warn about code paths in which NULL is passed to a must-not-be-NULL function argument.
 100
 101 Wanalyzer-null-dereference
 102 Common Var(warn_analyzer_null_dereference) Init(1) Warning
 103 Warn about code paths in which a NULL pointer is dereferenced.
 104
 105 Wanalyzer-shift-count-negative
 106 Common Var(warn_analyzer_shift_count_negative) Init(1) Warning
 107 Warn about code paths in which a shift with negative count is attempted.
 108
 109 Wanalyzer-shift-count-overflow
 110 Common Var(warn_analyzer_shift_count_overflow) Init(1) Warning
 111 Warn about code paths in which a shift with count >= width of type is attempted.
 112
 113 Wanalyzer-stale-setjmp-buffer
 114 Common Var(warn_analyzer_stale_setjmp_buffer) Init(1) Warning
 115 Warn about code paths in which a longjmp rewinds to a jmp_buf saved in a stack frame that has returned.
 116
 117 Wanalyzer-tainted-allocation-size
 118 Common Var(warn_analyzer_tainted_allocation_size) Init(1) Warning
 119 Warn about code paths in which an unsanitized value is used as an allocation size.
 120
 121 Wanalyzer-tainted-array-index
 122 Common Var(warn_analyzer_tainted_array_index) Init(1) Warning
 123 Warn about code paths in which an unsanitized value is used as an array index.
 124
 125 Wanalyzer-tainted-divisor
 126 Common Var(warn_analyzer_tainted_divisor) Init(1) Warning
 127 Warn about code paths in which an unsanitized value is used as a divisor.
 128
 129 Wanalyzer-tainted-offset
 130 Common Var(warn_analyzer_tainted_offset) Init(1) Warning
 131 Warn about code paths in which an unsanitized value is used as a pointer offset.
 132
 133 Wanalyzer-tainted-size
 134 Common Var(warn_analyzer_tainted_size) Init(1) Warning
 135 Warn about code paths in which an unsanitized value is used as a size.
 136
 137 Wanalyzer-use-after-free
 138 Common Var(warn_analyzer_use_after_free) Init(1) Warning
 139 Warn about code paths in which a freed value is used.
 140
 141 Wanalyzer-use-of-pointer-in-stale-stack-frame
 142 Common Var(warn_analyzer_use_of_pointer_in_stale_stack_frame) Init(1) Warning
 143 Warn about code paths in which a pointer to a stale stack frame is used.
 144
 145 Wanalyzer-write-to-const
 146 Common Var(warn_analyzer_write_to_const) Init(1) Warning
 147 Warn about code paths which attempt to write to a const object.
 148
 149 Wanalyzer-write-to-string-literal
 150 Common Var(warn_analyzer_write_to_string_literal) Init(1) Warning
 151 Warn about code paths which attempt to write to a string literal.
 152
 153 Wanalyzer-use-of-uninitialized-value
 154 Common Var(warn_analyzer_use_of_uninitialized_value) Init(1) Warning
 155 Warn about code paths in which an uninitialized value is used.
 156
 157 Wanalyzer-too-complex
 158 Common Var(warn_analyzer_too_complex) Init(0) Warning
 159 Warn if the code is too complicated for the analyzer to fully explore.
 160
 161 fanalyzer-checker=
 162 Common Joined RejectNegative Var(flag_analyzer_checker)
 163 Restrict the analyzer to run just the named checker.
 164
 165 fanalyzer-fine-grained
 166 Common Var(flag_analyzer_fine_grained) Init(0)
 167 Avoid combining multiple statements into one exploded edge.
 168
 169 fanalyzer-feasibility
 170 Common Var(flag_analyzer_feasibility) Init(1)
 171 Verify that paths are feasible when emitting diagnostics.
 172
 173 fanalyzer-show-duplicate-count
 174 Common Var(flag_analyzer_show_duplicate_count) Init(0)
 175 Issue a note when diagnostics are deduplicated.
 176
 177 fanalyzer-state-purge
 178 Common Var(flag_analyzer_state_purge) Init(1)
 179 Purge unneeded state during analysis.
 180
 181 fanalyzer-state-merge
 182 Common Var(flag_analyzer_state_merge) Init(1)
 183 Merge similar-enough states during analysis.
 184
 185 fanalyzer-transitivity
 186 Common Var(flag_analyzer_transitivity) Init(0)
 187 Enable transitivity of constraints during analysis.
 188
 189 fanalyzer-call-summaries
 190 Common Var(flag_analyzer_call_summaries) Init(0)
 191 Approximate the effect of function calls to simplify analysis.
 192
 193 fanalyzer-verbose-edges
 194 Common Var(flag_analyzer_verbose_edges) Init(0)
 195 Emit more verbose descriptions of control flow in diagnostics.
 196
 197 fanalyzer-verbose-state-changes
 198 Common Var(flag_analyzer_verbose_state_changes) Init(0)
 199 Emit more verbose descriptions of state changes in diagnostics.
 200
 201 fanalyzer-verbosity=
 202 Common Joined UInteger Var(analyzer_verbosity) Init(2)
 203 Control which events are displayed in diagnostic paths.
 204
 205 fdump-analyzer
 206 Common RejectNegative Var(flag_dump_analyzer)
 207 Dump various analyzer internals to SRCFILE.analyzer.txt.
 208
 209 fdump-analyzer-stderr
 210 Common RejectNegative Var(flag_dump_analyzer_stderr)
 211 Dump various analyzer internals to stderr.
 212
 213 fdump-analyzer-callgraph
 214 Common RejectNegative Var(flag_dump_analyzer_callgraph)
 215 Dump analyzer-specific call graph information to a SRCFILE.callgraph.dot file.
 216
 217 fdump-analyzer-exploded-graph
 218 Common RejectNegative Var(flag_dump_analyzer_exploded_graph)
 219 Dump the analyzer exploded graph to a SRCFILE.eg.dot file.
 220
 221 fdump-analyzer-exploded-nodes
 222 Common RejectNegative Var(flag_dump_analyzer_exploded_nodes)
 223 Emit diagnostics showing the location of nodes in the exploded graph.
 224
 225 fdump-analyzer-exploded-nodes-2
 226 Common RejectNegative Var(flag_dump_analyzer_exploded_nodes_2)
 227 Dump a textual representation of the exploded graph to SRCFILE.eg.txt.
 228
 229 fdump-analyzer-exploded-nodes-3
 230 Common RejectNegative Var(flag_dump_analyzer_exploded_nodes_3)
 231 Dump a textual representation of the exploded graph to SRCFILE.eg-ID.txt.
 232
 233 fdump-analyzer-exploded-paths
 234 Common RejectNegative Var(flag_dump_analyzer_exploded_paths)
 235 Dump a textual representation of each diagnostic's exploded path to SRCFILE.IDX.KIND.epath.txt.
 236
 237 fdump-analyzer-feasibility
 238 Common RejectNegative Var(flag_dump_analyzer_feasibility)
 239 Dump various analyzer internals to SRCFILE.*.fg.dot and SRCFILE.*.tg.dot.
 240
 241 fdump-analyzer-json
 242 Common RejectNegative Var(flag_dump_analyzer_json)
 243 Dump analyzer-specific data to a SRCFILE.analyzer.json.gz file.
 244
 245 fdump-analyzer-state-purge
 246 Common RejectNegative Var(flag_dump_analyzer_state_purge)
 247 Dump state-purging information to a SRCFILE.state-purge.dot file.
 248
 249 fdump-analyzer-supergraph
 250 Common RejectNegative Var(flag_dump_analyzer_supergraph)
 251 Dump the analyzer supergraph to a SRCFILE.supergraph.dot file.
 252
 253 ; This comment is to ensure we retain the blank line above.