1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
//===-- sanitizer_flags.h ---------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file describes common flags available in all sanitizers.
//
//===----------------------------------------------------------------------===//
#ifndef COMMON_FLAG
#error "Define COMMON_FLAG prior to including this file!"
#endif
// COMMON_FLAG(Type, Name, DefaultValue, Description)
// Supported types: bool, const char *, int, uptr.
// Default value must be a compile-time constant.
// Description must be a string literal.
COMMON_FLAG(
bool, symbolize, true,
"If set, use the online symbolizer from common sanitizer runtime to turn "
"virtual addresses to file/line locations.")
COMMON_FLAG(
const char *, external_symbolizer_path, nullptr,
"Path to external symbolizer. If empty, the tool will search $PATH for "
"the symbolizer.")
COMMON_FLAG(
bool, allow_addr2line, false,
"If set, allows online symbolizer to run addr2line binary to symbolize "
"stack traces (addr2line will only be used if llvm-symbolizer binary is "
"unavailable.")
COMMON_FLAG(const char *, strip_path_prefix, "",
"Strips this prefix from file paths in error reports.")
COMMON_FLAG(bool, fast_unwind_on_check, false,
"If available, use the fast frame-pointer-based unwinder on "
"internal CHECK failures.")
COMMON_FLAG(bool, fast_unwind_on_fatal, false,
"If available, use the fast frame-pointer-based unwinder on fatal "
"errors.")
COMMON_FLAG(bool, fast_unwind_on_malloc, true,
"If available, use the fast frame-pointer-based unwinder on "
"malloc/free.")
COMMON_FLAG(bool, handle_ioctl, false, "Intercept and handle ioctl requests.")
COMMON_FLAG(int, malloc_context_size, 1,
"Max number of stack frames kept for each allocation/deallocation.")
COMMON_FLAG(
const char *, log_path, "stderr",
"Write logs to \"log_path.pid\". The special values are \"stdout\" and "
"\"stderr\". The default is \"stderr\".")
COMMON_FLAG(
bool, log_exe_name, false,
"Mention name of executable when reporting error and "
"append executable name to logs (as in \"log_path.exe_name.pid\").")
COMMON_FLAG(
bool, log_to_syslog, SANITIZER_ANDROID || SANITIZER_MAC,
"Write all sanitizer output to syslog in addition to other means of "
"logging.")
COMMON_FLAG(
int, verbosity, 0,
"Verbosity level (0 - silent, 1 - a bit of output, 2+ - more output).")
COMMON_FLAG(bool, detect_leaks, true, "Enable memory leak detection.")
COMMON_FLAG(
bool, leak_check_at_exit, true,
"Invoke leak checking in an atexit handler. Has no effect if "
"detect_leaks=false, or if __lsan_do_leak_check() is called before the "
"handler has a chance to run.")
COMMON_FLAG(bool, allocator_may_return_null, false,
"If false, the allocator will crash instead of returning 0 on "
"out-of-memory.")
COMMON_FLAG(bool, print_summary, true,
"If false, disable printing error summaries in addition to error "
"reports.")
COMMON_FLAG(bool, check_printf, true, "Check printf arguments.")
COMMON_FLAG(bool, handle_segv, SANITIZER_NEEDS_SEGV,
"If set, registers the tool's custom SIGSEGV/SIGBUS handler.")
COMMON_FLAG(bool, handle_abort, false,
"If set, registers the tool's custom SIGABRT handler.")
COMMON_FLAG(bool, handle_sigill, false,
"If set, registers the tool's custom SIGILL handler.")
COMMON_FLAG(bool, handle_sigfpe, true,
"If set, registers the tool's custom SIGFPE handler.")
COMMON_FLAG(bool, allow_user_segv_handler, false,
"If set, allows user to register a SEGV handler even if the tool "
"registers one.")
COMMON_FLAG(bool, use_sigaltstack, true,
"If set, uses alternate stack for signal handling.")
COMMON_FLAG(bool, detect_deadlocks, false,
"If set, deadlock detection is enabled.")
COMMON_FLAG(
uptr, clear_shadow_mmap_threshold, 64 * 1024,
"Large shadow regions are zero-filled using mmap(NORESERVE) instead of "
"memset(). This is the threshold size in bytes.")
COMMON_FLAG(const char *, color, "auto",
"Colorize reports: (always|never|auto).")
COMMON_FLAG(
bool, legacy_pthread_cond, false,
"Enables support for dynamic libraries linked with libpthread 2.2.5.")
COMMON_FLAG(bool, intercept_tls_get_addr, false, "Intercept __tls_get_addr.")
COMMON_FLAG(bool, help, false, "Print the flag descriptions.")
COMMON_FLAG(uptr, mmap_limit_mb, 0,
"Limit the amount of mmap-ed memory (excluding shadow) in Mb; "
"not a user-facing flag, used mosly for testing the tools")
COMMON_FLAG(uptr, hard_rss_limit_mb, 0,
"Hard RSS limit in Mb."
" If non-zero, a background thread is spawned at startup"
" which periodically reads RSS and aborts the process if the"
" limit is reached")
COMMON_FLAG(uptr, soft_rss_limit_mb, 0,
"Soft RSS limit in Mb."
" If non-zero, a background thread is spawned at startup"
" which periodically reads RSS. If the limit is reached"
" all subsequent malloc/new calls will fail or return NULL"
" (depending on the value of allocator_may_return_null)"
" until the RSS goes below the soft limit."
" This limit does not affect memory allocations other than"
" malloc/new.")
COMMON_FLAG(bool, can_use_proc_maps_statm, true,
"If false, do not attempt to read /proc/maps/statm."
" Mostly useful for testing sanitizers.")
COMMON_FLAG(
bool, coverage, false,
"If set, coverage information will be dumped at program shutdown (if the "
"coverage instrumentation was enabled at compile time).")
COMMON_FLAG(bool, coverage_pcs, true,
"If set (and if 'coverage' is set too), the coverage information "
"will be dumped as a set of PC offsets for every module.")
COMMON_FLAG(bool, coverage_order_pcs, false,
"If true, the PCs will be dumped in the order they've"
" appeared during the execution.")
COMMON_FLAG(bool, coverage_bitset, false,
"If set (and if 'coverage' is set too), the coverage information "
"will also be dumped as a bitset to a separate file.")
COMMON_FLAG(bool, coverage_counters, false,
"If set (and if 'coverage' is set too), the bitmap that corresponds"
" to coverage counters will be dumped.")
COMMON_FLAG(bool, coverage_direct, SANITIZER_ANDROID,
"If set, coverage information will be dumped directly to a memory "
"mapped file. This way data is not lost even if the process is "
"suddenly killed.")
COMMON_FLAG(const char *, coverage_dir, ".",
"Target directory for coverage dumps. Defaults to the current "
"directory.")
COMMON_FLAG(bool, coverage_pc_buffer, true,
"If set (and if 'coverage' is set too), the pcs would be collected "
"in a buffer.")
COMMON_FLAG(bool, full_address_space, false,
"Sanitize complete address space; "
"by default kernel area on 32-bit platforms will not be sanitized")
COMMON_FLAG(bool, print_suppressions, true,
"Print matched suppressions at exit.")
COMMON_FLAG(
bool, disable_coredump, (SANITIZER_WORDSIZE == 64),
"Disable core dumping. By default, disable_core=1 on 64-bit to avoid "
"dumping a 16T+ core file. Ignored on OSes that don't dump core by"
"default and for sanitizers that don't reserve lots of virtual memory.")
COMMON_FLAG(bool, use_madv_dontdump, true,
"If set, instructs kernel to not store the (huge) shadow "
"in core file.")
COMMON_FLAG(bool, symbolize_inline_frames, true,
"Print inlined frames in stacktraces. Defaults to true.")
COMMON_FLAG(bool, symbolize_vs_style, false,
"Print file locations in Visual Studio style (e.g: "
" file(10,42): ...")
COMMON_FLAG(const char *, stack_trace_format, "DEFAULT",
"Format string used to render stack frames. "
"See sanitizer_stacktrace_printer.h for the format description. "
"Use DEFAULT to get default format.")
COMMON_FLAG(bool, no_huge_pages_for_shadow, true,
"If true, the shadow is not allowed to use huge pages. ")
COMMON_FLAG(bool, strict_string_checks, false,
"If set check that string arguments are properly null-terminated")
COMMON_FLAG(bool, intercept_strstr, true,
"If set, uses custom wrappers for strstr and strcasestr functions "
"to find more errors.")
COMMON_FLAG(bool, intercept_strspn, true,
"If set, uses custom wrappers for strspn and strcspn function "
"to find more errors.")
COMMON_FLAG(bool, intercept_strpbrk, true,
"If set, uses custom wrappers for strpbrk function "
"to find more errors.")
COMMON_FLAG(bool, intercept_memcmp, true,
"If set, uses custom wrappers for memcmp function "
"to find more errors.")
COMMON_FLAG(bool, strict_memcmp, true,
"If true, assume that memcmp(p1, p2, n) always reads n bytes before "
"comparing p1 and p2.")
COMMON_FLAG(bool, decorate_proc_maps, false, "If set, decorate sanitizer "
"mappings in /proc/self/maps with "
"user-readable names")
COMMON_FLAG(int, exitcode, 1, "Override the program exit status if the tool "
"found an error")
COMMON_FLAG(
bool, abort_on_error, SANITIZER_MAC,
"If set, the tool calls abort() instead of _exit() after printing the "
"error report.")
COMMON_FLAG(bool, suppress_equal_pcs, true,
"Deduplicate multiple reports for single source location in "
"halt_on_error=false mode (asan only).")
COMMON_FLAG(bool, print_cmdline, false, "Print command line on crash "
"(asan only).")
|
