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//===-- sanitizer_flags_test.cpp ------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer/AddressSanitizer runtime.
//
//===----------------------------------------------------------------------===//
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_flags.h"
#include "sanitizer_common/sanitizer_flag_parser.h"
#include "sanitizer_common/sanitizer_libc.h"
#include "sanitizer_common/sanitizer_allocator_internal.h"
#include "gtest/gtest.h"
#include <stdint.h>
#include <string.h>
namespace __sanitizer {
static const char kFlagName[] = "flag_name";
static const char kFlagDesc[] = "flag description";
template <typename T>
static void TestFlag(T start_value, const char *env, T final_value) {
T flag = start_value;
FlagParser parser;
RegisterFlag(&parser, kFlagName, kFlagDesc, &flag);
parser.ParseString(env);
EXPECT_EQ(final_value, flag);
// Reporting unrecognized flags is needed to reset them.
ReportUnrecognizedFlags();
}
template <>
void TestFlag(const char *start_value, const char *env,
const char *final_value) {
const char *flag = start_value;
FlagParser parser;
RegisterFlag(&parser, kFlagName, kFlagDesc, &flag);
parser.ParseString(env);
EXPECT_EQ(0, internal_strcmp(final_value, flag));
// Reporting unrecognized flags is needed to reset them.
ReportUnrecognizedFlags();
}
TEST(SanitizerCommon, BooleanFlags) {
TestFlag(false, "flag_name=1", true);
TestFlag(false, "flag_name=yes", true);
TestFlag(false, "flag_name=true", true);
TestFlag(true, "flag_name=0", false);
TestFlag(true, "flag_name=no", false);
TestFlag(true, "flag_name=false", false);
EXPECT_DEATH(TestFlag(false, "flag_name", true), "expected '='");
EXPECT_DEATH(TestFlag(false, "flag_name=", true),
"Invalid value for bool option: ''");
EXPECT_DEATH(TestFlag(false, "flag_name=2", true),
"Invalid value for bool option: '2'");
EXPECT_DEATH(TestFlag(false, "flag_name=-1", true),
"Invalid value for bool option: '-1'");
EXPECT_DEATH(TestFlag(false, "flag_name=on", true),
"Invalid value for bool option: 'on'");
}
TEST(SanitizerCommon, HandleSignalMode) {
TestFlag(kHandleSignalNo, "flag_name=1", kHandleSignalYes);
TestFlag(kHandleSignalNo, "flag_name=yes", kHandleSignalYes);
TestFlag(kHandleSignalNo, "flag_name=true", kHandleSignalYes);
TestFlag(kHandleSignalYes, "flag_name=0", kHandleSignalNo);
TestFlag(kHandleSignalYes, "flag_name=no", kHandleSignalNo);
TestFlag(kHandleSignalYes, "flag_name=false", kHandleSignalNo);
TestFlag(kHandleSignalNo, "flag_name=2", kHandleSignalExclusive);
TestFlag(kHandleSignalYes, "flag_name=exclusive", kHandleSignalExclusive);
EXPECT_DEATH(TestFlag(kHandleSignalNo, "flag_name", kHandleSignalNo),
"expected '='");
EXPECT_DEATH(TestFlag(kHandleSignalNo, "flag_name=", kHandleSignalNo),
"Invalid value for signal handler option: ''");
EXPECT_DEATH(TestFlag(kHandleSignalNo, "flag_name=3", kHandleSignalNo),
"Invalid value for signal handler option: '3'");
EXPECT_DEATH(TestFlag(kHandleSignalNo, "flag_name=-1", kHandleSignalNo),
"Invalid value for signal handler option: '-1'");
EXPECT_DEATH(TestFlag(kHandleSignalNo, "flag_name=on", kHandleSignalNo),
"Invalid value for signal handler option: 'on'");
}
TEST(SanitizerCommon, IntFlags) {
TestFlag(-11, 0, -11);
TestFlag(-11, "flag_name=0", 0);
TestFlag(-11, "flag_name=42", 42);
TestFlag(-11, "flag_name=-42", -42);
// Unrecognized flags are ignored.
TestFlag(-11, "--flag_name=42", -11);
TestFlag(-11, "zzzzzzz=42", -11);
EXPECT_DEATH(TestFlag(-11, "flag_name", 0), "expected '='");
EXPECT_DEATH(TestFlag(-11, "flag_name=42U", 0),
"Invalid value for int option");
}
TEST(SanitizerCommon, LongLongIntFlags) {
s64 InitValue = -5;
s64 IntMin = INT64_MIN;
s64 IntMax = INT64_MAX;
TestFlag(InitValue, "flag_name=0", 0ll);
TestFlag(InitValue, "flag_name=42", 42ll);
TestFlag(InitValue, "flag_name=-42", -42ll);
TestFlag(InitValue, "flag_name=-9223372036854775808", IntMin);
TestFlag(InitValue, "flag_name=9223372036854775807", IntMax);
TestFlag(InitValue, "flag_name=-92233720368547758080000", IntMin);
TestFlag(InitValue, "flag_name=92233720368547758070000", IntMax);
}
TEST(SanitizerCommon, StrFlags) {
TestFlag("zzz", 0, "zzz");
TestFlag("zzz", "flag_name=", "");
TestFlag("zzz", "flag_name=abc", "abc");
TestFlag("", "flag_name=abc", "abc");
TestFlag("", "flag_name='abc zxc'", "abc zxc");
// TestStrFlag("", "flag_name=\"abc qwe\" asd", "abc qwe");
}
static void TestTwoFlags(const char *env, bool expected_flag1,
const char *expected_flag2,
const char *name1 = "flag1",
const char *name2 = "flag2") {
bool flag1 = !expected_flag1;
const char *flag2 = "";
FlagParser parser;
RegisterFlag(&parser, name1, kFlagDesc, &flag1);
RegisterFlag(&parser, name2, kFlagDesc, &flag2);
parser.ParseString(env);
EXPECT_EQ(expected_flag1, flag1);
EXPECT_EQ(0, internal_strcmp(flag2, expected_flag2));
// Reporting unrecognized flags is needed to reset them.
ReportUnrecognizedFlags();
}
TEST(SanitizerCommon, MultipleFlags) {
TestTwoFlags("flag1=1 flag2='zzz'", true, "zzz");
TestTwoFlags("flag2='qxx' flag1=0", false, "qxx");
TestTwoFlags("flag1=false:flag2='zzz'", false, "zzz");
TestTwoFlags("flag2=qxx:flag1=yes", true, "qxx");
TestTwoFlags("flag2=qxx\nflag1=yes", true, "qxx");
TestTwoFlags("flag2=qxx\r\nflag1=yes", true, "qxx");
TestTwoFlags("flag2=qxx\tflag1=yes", true, "qxx");
}
TEST(SanitizerCommon, CommonSuffixFlags) {
TestTwoFlags("flag=1 other_flag='zzz'", true, "zzz", "flag", "other_flag");
TestTwoFlags("other_flag='zzz' flag=1", true, "zzz", "flag", "other_flag");
TestTwoFlags("other_flag=' flag=0 ' flag=1", true, " flag=0 ", "flag",
"other_flag");
TestTwoFlags("flag=1 other_flag=' flag=0 '", true, " flag=0 ", "flag",
"other_flag");
}
TEST(SanitizerCommon, CommonFlags) {
CommonFlags cf;
FlagParser parser;
RegisterCommonFlags(&parser, &cf);
cf.SetDefaults();
EXPECT_TRUE(cf.symbolize);
EXPECT_STREQ(".", cf.coverage_dir);
cf.symbolize = false;
cf.coverage = true;
cf.heap_profile = true;
cf.log_path = "path/one";
parser.ParseString("symbolize=1:heap_profile=false log_path='path/two'");
EXPECT_TRUE(cf.symbolize);
EXPECT_TRUE(cf.coverage);
EXPECT_FALSE(cf.heap_profile);
EXPECT_STREQ("path/two", cf.log_path);
}
} // namespace __sanitizer
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