131 lines
4.3 KiB
C++
131 lines
4.3 KiB
C++
//===-- tsan_flags.cc -----------------------------------------------------===//
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of ThreadSanitizer (TSan), a race detector.
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//
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//===----------------------------------------------------------------------===//
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#include "sanitizer_common/sanitizer_flags.h"
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#include "sanitizer_common/sanitizer_libc.h"
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#include "tsan_flags.h"
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#include "tsan_rtl.h"
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#include "tsan_mman.h"
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namespace __tsan {
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Flags *flags() {
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return &ctx->flags;
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}
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// Can be overriden in frontend.
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#ifdef TSAN_EXTERNAL_HOOKS
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extern "C" const char* __tsan_default_options();
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#else
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extern "C" SANITIZER_INTERFACE_ATTRIBUTE
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const char *WEAK __tsan_default_options() {
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return "";
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}
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#endif
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static void ParseFlags(Flags *f, const char *env) {
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ParseFlag(env, &f->enable_annotations, "enable_annotations", "");
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ParseFlag(env, &f->suppress_equal_stacks, "suppress_equal_stacks", "");
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ParseFlag(env, &f->suppress_equal_addresses, "suppress_equal_addresses", "");
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ParseFlag(env, &f->report_bugs, "report_bugs", "");
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ParseFlag(env, &f->report_thread_leaks, "report_thread_leaks", "");
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ParseFlag(env, &f->report_destroy_locked, "report_destroy_locked", "");
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ParseFlag(env, &f->report_mutex_bugs, "report_mutex_bugs", "");
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ParseFlag(env, &f->report_signal_unsafe, "report_signal_unsafe", "");
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ParseFlag(env, &f->report_atomic_races, "report_atomic_races", "");
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ParseFlag(env, &f->force_seq_cst_atomics, "force_seq_cst_atomics", "");
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ParseFlag(env, &f->print_benign, "print_benign", "");
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ParseFlag(env, &f->exitcode, "exitcode", "");
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ParseFlag(env, &f->halt_on_error, "halt_on_error", "");
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ParseFlag(env, &f->atexit_sleep_ms, "atexit_sleep_ms", "");
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ParseFlag(env, &f->profile_memory, "profile_memory", "");
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ParseFlag(env, &f->flush_memory_ms, "flush_memory_ms", "");
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ParseFlag(env, &f->flush_symbolizer_ms, "flush_symbolizer_ms", "");
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ParseFlag(env, &f->memory_limit_mb, "memory_limit_mb", "");
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ParseFlag(env, &f->stop_on_start, "stop_on_start", "");
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ParseFlag(env, &f->running_on_valgrind, "running_on_valgrind", "");
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ParseFlag(env, &f->history_size, "history_size", "");
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ParseFlag(env, &f->io_sync, "io_sync", "");
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ParseFlag(env, &f->die_after_fork, "die_after_fork", "");
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// DDFlags
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ParseFlag(env, &f->second_deadlock_stack, "second_deadlock_stack", "");
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}
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void InitializeFlags(Flags *f, const char *env) {
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internal_memset(f, 0, sizeof(*f));
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// Default values.
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f->enable_annotations = true;
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f->suppress_equal_stacks = true;
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f->suppress_equal_addresses = true;
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f->report_bugs = true;
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f->report_thread_leaks = true;
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f->report_destroy_locked = true;
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f->report_mutex_bugs = true;
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f->report_signal_unsafe = true;
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f->report_atomic_races = true;
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f->force_seq_cst_atomics = false;
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f->print_benign = false;
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f->exitcode = 66;
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f->halt_on_error = false;
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f->atexit_sleep_ms = 1000;
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f->profile_memory = "";
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f->flush_memory_ms = 0;
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f->flush_symbolizer_ms = 5000;
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f->memory_limit_mb = 0;
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f->stop_on_start = false;
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f->running_on_valgrind = false;
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f->history_size = kGoMode ? 1 : 2; // There are a lot of goroutines in Go.
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f->io_sync = 1;
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f->die_after_fork = true;
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// DDFlags
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f->second_deadlock_stack = false;
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CommonFlags *cf = common_flags();
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SetCommonFlagsDefaults(cf);
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// Override some common flags defaults.
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cf->allow_addr2line = true;
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cf->detect_deadlocks = true;
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cf->print_suppressions = false;
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// Let a frontend override.
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ParseFlags(f, __tsan_default_options());
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ParseCommonFlagsFromString(cf, __tsan_default_options());
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// Override from command line.
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ParseFlags(f, env);
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ParseCommonFlagsFromString(cf, env);
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// Sanity check.
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if (!f->report_bugs) {
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f->report_thread_leaks = false;
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f->report_destroy_locked = false;
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f->report_signal_unsafe = false;
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}
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if (cf->help) PrintFlagDescriptions();
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if (f->history_size < 0 || f->history_size > 7) {
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Printf("ThreadSanitizer: incorrect value for history_size"
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" (must be [0..7])\n");
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Die();
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}
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if (f->io_sync < 0 || f->io_sync > 2) {
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Printf("ThreadSanitizer: incorrect value for io_sync"
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" (must be [0..2])\n");
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Die();
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}
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}
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} // namespace __tsan
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