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coral / android-core / 31438489c0e263ca39f7ba77fe4e50334f2efab7 / . / debuggerd / libdebuggerd / test / dump_memory_test.cpp
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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <memory>
#include <string>
#include <android-base/file.h>
#include <gtest/gtest.h>
#include <unwindstack/Memory.h>
#include "libdebuggerd/utility.h"
#include "log_fake.h"
const char g_expected_full_dump[] =
"\nmemory near r1:\n"
#if defined(__LP64__)
" 0000000012345658 0706050403020100 0f0e0d0c0b0a0908 ................\n"
" 0000000012345668 1716151413121110 1f1e1d1c1b1a1918 ................\n"
" 0000000012345678 2726252423222120 2f2e2d2c2b2a2928 !\"#$%&'()*+,-./\n"
" 0000000012345688 3736353433323130 3f3e3d3c3b3a3938 0123456789:;<=>?\n"
" 0000000012345698 4746454443424140 4f4e4d4c4b4a4948 @ABCDEFGHIJKLMNO\n"
" 00000000123456a8 5756555453525150 5f5e5d5c5b5a5958 PQRSTUVWXYZ[\\]^_\n"
" 00000000123456b8 6766656463626160 6f6e6d6c6b6a6968 `abcdefghijklmno\n"
" 00000000123456c8 7776757473727170 7f7e7d7c7b7a7978 pqrstuvwxyz{|}~.\n"
" 00000000123456d8 8786858483828180 8f8e8d8c8b8a8988 ................\n"
" 00000000123456e8 9796959493929190 9f9e9d9c9b9a9998 ................\n"
" 00000000123456f8 a7a6a5a4a3a2a1a0 afaeadacabaaa9a8 ................\n"
" 0000000012345708 b7b6b5b4b3b2b1b0 bfbebdbcbbbab9b8 ................\n"
" 0000000012345718 c7c6c5c4c3c2c1c0 cfcecdcccbcac9c8 ................\n"
" 0000000012345728 d7d6d5d4d3d2d1d0 dfdedddcdbdad9d8 ................\n"
" 0000000012345738 e7e6e5e4e3e2e1e0 efeeedecebeae9e8 ................\n"
" 0000000012345748 f7f6f5f4f3f2f1f0 fffefdfcfbfaf9f8 ................\n";
#else
" 12345658 03020100 07060504 0b0a0908 0f0e0d0c ................\n"
" 12345668 13121110 17161514 1b1a1918 1f1e1d1c ................\n"
" 12345678 23222120 27262524 2b2a2928 2f2e2d2c !\"#$%&'()*+,-./\n"
" 12345688 33323130 37363534 3b3a3938 3f3e3d3c 0123456789:;<=>?\n"
" 12345698 43424140 47464544 4b4a4948 4f4e4d4c @ABCDEFGHIJKLMNO\n"
" 123456a8 53525150 57565554 5b5a5958 5f5e5d5c PQRSTUVWXYZ[\\]^_\n"
" 123456b8 63626160 67666564 6b6a6968 6f6e6d6c `abcdefghijklmno\n"
" 123456c8 73727170 77767574 7b7a7978 7f7e7d7c pqrstuvwxyz{|}~.\n"
" 123456d8 83828180 87868584 8b8a8988 8f8e8d8c ................\n"
" 123456e8 93929190 97969594 9b9a9998 9f9e9d9c ................\n"
" 123456f8 a3a2a1a0 a7a6a5a4 abaaa9a8 afaeadac ................\n"
" 12345708 b3b2b1b0 b7b6b5b4 bbbab9b8 bfbebdbc ................\n"
" 12345718 c3c2c1c0 c7c6c5c4 cbcac9c8 cfcecdcc ................\n"
" 12345728 d3d2d1d0 d7d6d5d4 dbdad9d8 dfdedddc ................\n"
" 12345738 e3e2e1e0 e7e6e5e4 ebeae9e8 efeeedec ................\n"
" 12345748 f3f2f1f0 f7f6f5f4 fbfaf9f8 fffefdfc ................\n";
#endif
const char g_expected_partial_dump[] = \
"\nmemory near pc:\n"
#if defined(__LP64__)
" 00000000123455e0 0706050403020100 0f0e0d0c0b0a0908 ................\n"
" 00000000123455f0 1716151413121110 1f1e1d1c1b1a1918 ................\n"
" 0000000012345600 2726252423222120 2f2e2d2c2b2a2928 !\"#$%&'()*+,-./\n"
" 0000000012345610 3736353433323130 3f3e3d3c3b3a3938 0123456789:;<=>?\n"
" 0000000012345620 4746454443424140 4f4e4d4c4b4a4948 @ABCDEFGHIJKLMNO\n"
" 0000000012345630 5756555453525150 5f5e5d5c5b5a5958 PQRSTUVWXYZ[\\]^_\n"
" 0000000012345640 6766656463626160 ---------------- `abcdefg........\n"
" 0000000012345650 ---------------- ---------------- ................\n"
" 0000000012345660 ---------------- ---------------- ................\n"
" 0000000012345670 ---------------- ---------------- ................\n"
" 0000000012345680 ---------------- ---------------- ................\n"
" 0000000012345690 ---------------- ---------------- ................\n"
" 00000000123456a0 ---------------- ---------------- ................\n"
" 00000000123456b0 ---------------- ---------------- ................\n"
" 00000000123456c0 ---------------- ---------------- ................\n"
" 00000000123456d0 ---------------- ---------------- ................\n";
#else
" 123455e0 03020100 07060504 0b0a0908 0f0e0d0c ................\n"
" 123455f0 13121110 17161514 1b1a1918 1f1e1d1c ................\n"
" 12345600 23222120 27262524 2b2a2928 2f2e2d2c !\"#$%&'()*+,-./\n"
" 12345610 33323130 37363534 3b3a3938 3f3e3d3c 0123456789:;<=>?\n"
" 12345620 43424140 47464544 4b4a4948 4f4e4d4c @ABCDEFGHIJKLMNO\n"
" 12345630 53525150 57565554 5b5a5958 5f5e5d5c PQRSTUVWXYZ[\\]^_\n"
" 12345640 63626160 67666564 -------- -------- `abcdefg........\n"
" 12345650 -------- -------- -------- -------- ................\n"
" 12345660 -------- -------- -------- -------- ................\n"
" 12345670 -------- -------- -------- -------- ................\n"
" 12345680 -------- -------- -------- -------- ................\n"
" 12345690 -------- -------- -------- -------- ................\n"
" 123456a0 -------- -------- -------- -------- ................\n"
" 123456b0 -------- -------- -------- -------- ................\n"
" 123456c0 -------- -------- -------- -------- ................\n"
" 123456d0 -------- -------- -------- -------- ................\n";
#endif
class MemoryMock : public unwindstack::Memory {
public:
virtual ~MemoryMock() = default;
virtual size_t Read(uint64_t addr, void* buffer, size_t bytes) override {
size_t offset = 0;
if (last_read_addr_ > 0) {
offset = addr - last_read_addr_;
}
size_t bytes_available = buffer_.size() - offset;
if (partial_read_) {
bytes = std::min(bytes, bytes_partial_read_);
bytes_partial_read_ -= bytes;
partial_read_ = bytes_partial_read_;
} else if (bytes > bytes_available) {
bytes = bytes_available;
}
if (bytes > 0) {
memcpy(buffer, buffer_.data() + offset, bytes);
}
last_read_addr_ = addr;
return bytes;
}
void SetReadData(uint8_t* buffer, size_t bytes) {
buffer_.resize(bytes);
memcpy(buffer_.data(), buffer, bytes);
bytes_partial_read_ = 0;
last_read_addr_ = 0;
}
void SetPartialReadAmount(size_t bytes) {
if (bytes > buffer_.size()) {
abort();
}
partial_read_ = true;
bytes_partial_read_ = bytes;
}
private:
std::vector<uint8_t> buffer_;
bool partial_read_ = false;
size_t bytes_partial_read_ = 0;
uintptr_t last_read_addr_ = 0;
};
class DumpMemoryTest : public ::testing::Test {
protected:
virtual void SetUp() {
memory_mock_ = std::make_unique<MemoryMock>();
char tmp_file[256];
const char data_template[] = "/data/local/tmp/debuggerd_memory_testXXXXXX";
memcpy(tmp_file, data_template, sizeof(data_template));
int tombstone_fd = mkstemp(tmp_file);
if (tombstone_fd == -1) {
const char tmp_template[] = "/tmp/debuggerd_memory_testXXXXXX";
memcpy(tmp_file, tmp_template, sizeof(tmp_template));
tombstone_fd = mkstemp(tmp_file);
if (tombstone_fd == -1) {
abort();
}
}
if (unlink(tmp_file) == -1) {
abort();
}
log_.tfd = tombstone_fd;
log_.amfd_data = nullptr;
log_.crashed_tid = 12;
log_.current_tid = 12;
log_.should_retrieve_logcat = false;
resetLogs();
}
virtual void TearDown() {
if (log_.tfd >= 0) {
close(log_.tfd);
}
memory_mock_.reset();
}
std::unique_ptr<MemoryMock> memory_mock_;
log_t log_;
};
TEST_F(DumpMemoryTest, aligned_addr) {
uint8_t buffer[256];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
dump_memory(&log_, memory_mock_.get(), 0x12345678, "memory near r1");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ(g_expected_full_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, partial_read) {
uint8_t buffer[256];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
memory_mock_->SetPartialReadAmount(96);
dump_memory(&log_, memory_mock_.get(), 0x12345679, "memory near r1");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ(g_expected_full_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, unaligned_addr) {
uint8_t buffer[256];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
dump_memory(&log_, memory_mock_.get(), 0x12345679, "memory near r1");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ(g_expected_full_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, memory_unreadable) {
dump_memory(&log_, memory_mock_.get(), 0xa2345678, "memory near pc");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
const char* expected_dump = \
"\nmemory near pc:\n"
#if defined(__LP64__)
" 00000000a2345658 ---------------- ---------------- ................\n"
" 00000000a2345668 ---------------- ---------------- ................\n"
" 00000000a2345678 ---------------- ---------------- ................\n"
" 00000000a2345688 ---------------- ---------------- ................\n"
" 00000000a2345698 ---------------- ---------------- ................\n"
" 00000000a23456a8 ---------------- ---------------- ................\n"
" 00000000a23456b8 ---------------- ---------------- ................\n"
" 00000000a23456c8 ---------------- ---------------- ................\n"
" 00000000a23456d8 ---------------- ---------------- ................\n"
" 00000000a23456e8 ---------------- ---------------- ................\n"
" 00000000a23456f8 ---------------- ---------------- ................\n"
" 00000000a2345708 ---------------- ---------------- ................\n"
" 00000000a2345718 ---------------- ---------------- ................\n"
" 00000000a2345728 ---------------- ---------------- ................\n"
" 00000000a2345738 ---------------- ---------------- ................\n"
" 00000000a2345748 ---------------- ---------------- ................\n";
#else
" a2345658 -------- -------- -------- -------- ................\n"
" a2345668 -------- -------- -------- -------- ................\n"
" a2345678 -------- -------- -------- -------- ................\n"
" a2345688 -------- -------- -------- -------- ................\n"
" a2345698 -------- -------- -------- -------- ................\n"
" a23456a8 -------- -------- -------- -------- ................\n"
" a23456b8 -------- -------- -------- -------- ................\n"
" a23456c8 -------- -------- -------- -------- ................\n"
" a23456d8 -------- -------- -------- -------- ................\n"
" a23456e8 -------- -------- -------- -------- ................\n"
" a23456f8 -------- -------- -------- -------- ................\n"
" a2345708 -------- -------- -------- -------- ................\n"
" a2345718 -------- -------- -------- -------- ................\n"
" a2345728 -------- -------- -------- -------- ................\n"
" a2345738 -------- -------- -------- -------- ................\n"
" a2345748 -------- -------- -------- -------- ................\n";
#endif
ASSERT_STREQ(expected_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, memory_partially_unreadable) {
uint8_t buffer[104];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
dump_memory(&log_, memory_mock_.get(), 0x12345600, "memory near pc");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ(g_expected_partial_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, memory_partially_unreadable_unaligned_return) {
uint8_t buffer[104];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
memory_mock_->SetPartialReadAmount(102);
dump_memory(&log_, memory_mock_.get(), 0x12345600, "memory near pc");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ(g_expected_partial_dump, tombstone_contents.c_str());
#if defined(__LP64__)
ASSERT_STREQ("6 DEBUG Bytes read 102, is not a multiple of 8\n", getFakeLogPrint().c_str());
#else
ASSERT_STREQ("6 DEBUG Bytes read 102, is not a multiple of 4\n", getFakeLogPrint().c_str());
#endif
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
}
TEST_F(DumpMemoryTest, memory_partially_unreadable_two_unaligned_reads) {
uint8_t buffer[106];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
memory_mock_->SetPartialReadAmount(45);
dump_memory(&log_, memory_mock_.get(), 0x12345600, "memory near pc");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ(g_expected_partial_dump, tombstone_contents.c_str());
#if defined(__LP64__)
ASSERT_STREQ("6 DEBUG Bytes read 45, is not a multiple of 8\n"
"6 DEBUG Bytes after second read 106, is not a multiple of 8\n",
getFakeLogPrint().c_str());
#else
ASSERT_STREQ("6 DEBUG Bytes read 45, is not a multiple of 4\n"
"6 DEBUG Bytes after second read 106, is not a multiple of 4\n",
getFakeLogPrint().c_str());
#endif
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
}
TEST_F(DumpMemoryTest, address_low_fence) {
uint8_t buffer[256];
memset(buffer, 0, sizeof(buffer));
memory_mock_->SetReadData(buffer, sizeof(buffer));
dump_memory(&log_, memory_mock_.get(), 0x1000, "memory near r1");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
const char* expected_dump = \
"\nmemory near r1:\n"
#if defined(__LP64__)
" 0000000000001000 0000000000000000 0000000000000000 ................\n"
" 0000000000001010 0000000000000000 0000000000000000 ................\n"
" 0000000000001020 0000000000000000 0000000000000000 ................\n"
" 0000000000001030 0000000000000000 0000000000000000 ................\n"
" 0000000000001040 0000000000000000 0000000000000000 ................\n"
" 0000000000001050 0000000000000000 0000000000000000 ................\n"
" 0000000000001060 0000000000000000 0000000000000000 ................\n"
" 0000000000001070 0000000000000000 0000000000000000 ................\n"
" 0000000000001080 0000000000000000 0000000000000000 ................\n"
" 0000000000001090 0000000000000000 0000000000000000 ................\n"
" 00000000000010a0 0000000000000000 0000000000000000 ................\n"
" 00000000000010b0 0000000000000000 0000000000000000 ................\n"
" 00000000000010c0 0000000000000000 0000000000000000 ................\n"
" 00000000000010d0 0000000000000000 0000000000000000 ................\n"
" 00000000000010e0 0000000000000000 0000000000000000 ................\n"
" 00000000000010f0 0000000000000000 0000000000000000 ................\n";
#else
" 00001000 00000000 00000000 00000000 00000000 ................\n"
" 00001010 00000000 00000000 00000000 00000000 ................\n"
" 00001020 00000000 00000000 00000000 00000000 ................\n"
" 00001030 00000000 00000000 00000000 00000000 ................\n"
" 00001040 00000000 00000000 00000000 00000000 ................\n"
" 00001050 00000000 00000000 00000000 00000000 ................\n"
" 00001060 00000000 00000000 00000000 00000000 ................\n"
" 00001070 00000000 00000000 00000000 00000000 ................\n"
" 00001080 00000000 00000000 00000000 00000000 ................\n"
" 00001090 00000000 00000000 00000000 00000000 ................\n"
" 000010a0 00000000 00000000 00000000 00000000 ................\n"
" 000010b0 00000000 00000000 00000000 00000000 ................\n"
" 000010c0 00000000 00000000 00000000 00000000 ................\n"
" 000010d0 00000000 00000000 00000000 00000000 ................\n"
" 000010e0 00000000 00000000 00000000 00000000 ................\n"
" 000010f0 00000000 00000000 00000000 00000000 ................\n";
#endif
ASSERT_STREQ(expected_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, memory_address_too_low) {
uint8_t buffer[256];
memset(buffer, 0, sizeof(buffer));
memory_mock_->SetReadData(buffer, sizeof(buffer));
dump_memory(&log_, memory_mock_.get(), 0, "memory near r1");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ("", tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, memory_address_too_high) {
uint8_t buffer[256];
memset(buffer, 0, sizeof(buffer));
memory_mock_->SetReadData(buffer, sizeof(buffer));
#if defined(__LP64__)
dump_memory(&log_, memory_mock_.get(), 0x4000000000000000UL, "memory near r1");
dump_memory(&log_, memory_mock_.get(), 0x4000000000000000UL - 32, "memory near r1");
dump_memory(&log_, memory_mock_.get(), 0x4000000000000000UL - 216, "memory near r1");
#else
dump_memory(&log_, memory_mock_.get(), 0xffff0000, "memory near r1");
dump_memory(&log_, memory_mock_.get(), 0xffff0000 - 32, "memory near r1");
dump_memory(&log_, memory_mock_.get(), 0xffff0000 - 220, "memory near r1");
#endif
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ("", tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, memory_address_would_overflow) {
uint8_t buffer[256];
memset(buffer, 0, sizeof(buffer));
memory_mock_->SetReadData(buffer, sizeof(buffer));
#if defined(__LP64__)
dump_memory(&log_, memory_mock_.get(), 0xfffffffffffffff0, "memory near r1");
#else
dump_memory(&log_, memory_mock_.get(), 0xfffffff0, "memory near r1");
#endif
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
ASSERT_STREQ("", tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, memory_address_nearly_too_high) {
uint8_t buffer[256];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
#if defined(__LP64__)
dump_memory(&log_, memory_mock_.get(), 0x4000000000000000UL - 224, "memory near r4");
#else
dump_memory(&log_, memory_mock_.get(), 0xffff0000 - 224, "memory near r4");
#endif
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
const char* expected_dump = \
"\nmemory near r4:\n"
#if defined(__LP64__)
" 3fffffffffffff00 0706050403020100 0f0e0d0c0b0a0908 ................\n"
" 3fffffffffffff10 1716151413121110 1f1e1d1c1b1a1918 ................\n"
" 3fffffffffffff20 2726252423222120 2f2e2d2c2b2a2928 !\"#$%&'()*+,-./\n"
" 3fffffffffffff30 3736353433323130 3f3e3d3c3b3a3938 0123456789:;<=>?\n"
" 3fffffffffffff40 4746454443424140 4f4e4d4c4b4a4948 @ABCDEFGHIJKLMNO\n"
" 3fffffffffffff50 5756555453525150 5f5e5d5c5b5a5958 PQRSTUVWXYZ[\\]^_\n"
" 3fffffffffffff60 6766656463626160 6f6e6d6c6b6a6968 `abcdefghijklmno\n"
" 3fffffffffffff70 7776757473727170 7f7e7d7c7b7a7978 pqrstuvwxyz{|}~.\n"
" 3fffffffffffff80 8786858483828180 8f8e8d8c8b8a8988 ................\n"
" 3fffffffffffff90 9796959493929190 9f9e9d9c9b9a9998 ................\n"
" 3fffffffffffffa0 a7a6a5a4a3a2a1a0 afaeadacabaaa9a8 ................\n"
" 3fffffffffffffb0 b7b6b5b4b3b2b1b0 bfbebdbcbbbab9b8 ................\n"
" 3fffffffffffffc0 c7c6c5c4c3c2c1c0 cfcecdcccbcac9c8 ................\n"
" 3fffffffffffffd0 d7d6d5d4d3d2d1d0 dfdedddcdbdad9d8 ................\n"
" 3fffffffffffffe0 e7e6e5e4e3e2e1e0 efeeedecebeae9e8 ................\n"
" 3ffffffffffffff0 f7f6f5f4f3f2f1f0 fffefdfcfbfaf9f8 ................\n";
#else
" fffeff00 03020100 07060504 0b0a0908 0f0e0d0c ................\n"
" fffeff10 13121110 17161514 1b1a1918 1f1e1d1c ................\n"
" fffeff20 23222120 27262524 2b2a2928 2f2e2d2c !\"#$%&'()*+,-./\n"
" fffeff30 33323130 37363534 3b3a3938 3f3e3d3c 0123456789:;<=>?\n"
" fffeff40 43424140 47464544 4b4a4948 4f4e4d4c @ABCDEFGHIJKLMNO\n"
" fffeff50 53525150 57565554 5b5a5958 5f5e5d5c PQRSTUVWXYZ[\\]^_\n"
" fffeff60 63626160 67666564 6b6a6968 6f6e6d6c `abcdefghijklmno\n"
" fffeff70 73727170 77767574 7b7a7978 7f7e7d7c pqrstuvwxyz{|}~.\n"
" fffeff80 83828180 87868584 8b8a8988 8f8e8d8c ................\n"
" fffeff90 93929190 97969594 9b9a9998 9f9e9d9c ................\n"
" fffeffa0 a3a2a1a0 a7a6a5a4 abaaa9a8 afaeadac ................\n"
" fffeffb0 b3b2b1b0 b7b6b5b4 bbbab9b8 bfbebdbc ................\n"
" fffeffc0 c3c2c1c0 c7c6c5c4 cbcac9c8 cfcecdcc ................\n"
" fffeffd0 d3d2d1d0 d7d6d5d4 dbdad9d8 dfdedddc ................\n"
" fffeffe0 e3e2e1e0 e7e6e5e4 ebeae9e8 efeeedec ................\n"
" fffefff0 f3f2f1f0 f7f6f5f4 fbfaf9f8 fffefdfc ................\n";
#endif
ASSERT_STREQ(expected_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, first_read_empty) {
uint8_t buffer[256];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
memory_mock_->SetPartialReadAmount(0);
size_t page_size = sysconf(_SC_PAGE_SIZE);
uintptr_t addr = 0x10000020 + page_size - 120;
dump_memory(&log_, memory_mock_.get(), addr, "memory near r4");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
const char* expected_dump = \
"\nmemory near r4:\n"
#if defined(__LP64__)
" 0000000010000f88 ---------------- ---------------- ................\n"
" 0000000010000f98 ---------------- ---------------- ................\n"
" 0000000010000fa8 ---------------- ---------------- ................\n"
" 0000000010000fb8 ---------------- ---------------- ................\n"
" 0000000010000fc8 ---------------- ---------------- ................\n"
" 0000000010000fd8 ---------------- ---------------- ................\n"
" 0000000010000fe8 ---------------- ---------------- ................\n"
" 0000000010000ff8 ---------------- 7f7e7d7c7b7a7978 ........xyz{|}~.\n"
" 0000000010001008 8786858483828180 8f8e8d8c8b8a8988 ................\n"
" 0000000010001018 9796959493929190 9f9e9d9c9b9a9998 ................\n"
" 0000000010001028 a7a6a5a4a3a2a1a0 afaeadacabaaa9a8 ................\n"
" 0000000010001038 b7b6b5b4b3b2b1b0 bfbebdbcbbbab9b8 ................\n"
" 0000000010001048 c7c6c5c4c3c2c1c0 cfcecdcccbcac9c8 ................\n"
" 0000000010001058 d7d6d5d4d3d2d1d0 dfdedddcdbdad9d8 ................\n"
" 0000000010001068 e7e6e5e4e3e2e1e0 efeeedecebeae9e8 ................\n"
" 0000000010001078 f7f6f5f4f3f2f1f0 fffefdfcfbfaf9f8 ................\n";
#else
" 10000f88 -------- -------- -------- -------- ................\n"
" 10000f98 -------- -------- -------- -------- ................\n"
" 10000fa8 -------- -------- -------- -------- ................\n"
" 10000fb8 -------- -------- -------- -------- ................\n"
" 10000fc8 -------- -------- -------- -------- ................\n"
" 10000fd8 -------- -------- -------- -------- ................\n"
" 10000fe8 -------- -------- -------- -------- ................\n"
" 10000ff8 -------- -------- 7b7a7978 7f7e7d7c ........xyz{|}~.\n"
" 10001008 83828180 87868584 8b8a8988 8f8e8d8c ................\n"
" 10001018 93929190 97969594 9b9a9998 9f9e9d9c ................\n"
" 10001028 a3a2a1a0 a7a6a5a4 abaaa9a8 afaeadac ................\n"
" 10001038 b3b2b1b0 b7b6b5b4 bbbab9b8 bfbebdbc ................\n"
" 10001048 c3c2c1c0 c7c6c5c4 cbcac9c8 cfcecdcc ................\n"
" 10001058 d3d2d1d0 d7d6d5d4 dbdad9d8 dfdedddc ................\n"
" 10001068 e3e2e1e0 e7e6e5e4 ebeae9e8 efeeedec ................\n"
" 10001078 f3f2f1f0 f7f6f5f4 fbfaf9f8 fffefdfc ................\n";
#endif
ASSERT_STREQ(expected_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, first_read_empty_second_read_stops) {
uint8_t buffer[224];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
memory_mock_->SetPartialReadAmount(0);
size_t page_size = sysconf(_SC_PAGE_SIZE);
uintptr_t addr = 0x10000020 + page_size - 192;
dump_memory(&log_, memory_mock_.get(), addr, "memory near r4");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
const char* expected_dump = \
"\nmemory near r4:\n"
#if defined(__LP64__)
" 0000000010000f40 ---------------- ---------------- ................\n"
" 0000000010000f50 ---------------- ---------------- ................\n"
" 0000000010000f60 ---------------- ---------------- ................\n"
" 0000000010000f70 ---------------- ---------------- ................\n"
" 0000000010000f80 ---------------- ---------------- ................\n"
" 0000000010000f90 ---------------- ---------------- ................\n"
" 0000000010000fa0 ---------------- ---------------- ................\n"
" 0000000010000fb0 ---------------- ---------------- ................\n"
" 0000000010000fc0 ---------------- ---------------- ................\n"
" 0000000010000fd0 ---------------- ---------------- ................\n"
" 0000000010000fe0 ---------------- ---------------- ................\n"
" 0000000010000ff0 ---------------- ---------------- ................\n"
" 0000000010001000 c7c6c5c4c3c2c1c0 cfcecdcccbcac9c8 ................\n"
" 0000000010001010 d7d6d5d4d3d2d1d0 dfdedddcdbdad9d8 ................\n"
" 0000000010001020 ---------------- ---------------- ................\n"
" 0000000010001030 ---------------- ---------------- ................\n";
#else
" 10000f40 -------- -------- -------- -------- ................\n"
" 10000f50 -------- -------- -------- -------- ................\n"
" 10000f60 -------- -------- -------- -------- ................\n"
" 10000f70 -------- -------- -------- -------- ................\n"
" 10000f80 -------- -------- -------- -------- ................\n"
" 10000f90 -------- -------- -------- -------- ................\n"
" 10000fa0 -------- -------- -------- -------- ................\n"
" 10000fb0 -------- -------- -------- -------- ................\n"
" 10000fc0 -------- -------- -------- -------- ................\n"
" 10000fd0 -------- -------- -------- -------- ................\n"
" 10000fe0 -------- -------- -------- -------- ................\n"
" 10000ff0 -------- -------- -------- -------- ................\n"
" 10001000 c3c2c1c0 c7c6c5c4 cbcac9c8 cfcecdcc ................\n"
" 10001010 d3d2d1d0 d7d6d5d4 dbdad9d8 dfdedddc ................\n"
" 10001020 -------- -------- -------- -------- ................\n"
" 10001030 -------- -------- -------- -------- ................\n";
#endif
ASSERT_STREQ(expected_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, first_read_empty_next_page_out_of_range) {
uint8_t buffer[256];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
memory_mock_->SetPartialReadAmount(0);
uintptr_t addr = 0x10000020;
dump_memory(&log_, memory_mock_.get(), addr, "memory near r4");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
const char* expected_dump = \
"\nmemory near r4:\n"
#if defined(__LP64__)
" 0000000010000000 ---------------- ---------------- ................\n"
" 0000000010000010 ---------------- ---------------- ................\n"
" 0000000010000020 ---------------- ---------------- ................\n"
" 0000000010000030 ---------------- ---------------- ................\n"
" 0000000010000040 ---------------- ---------------- ................\n"
" 0000000010000050 ---------------- ---------------- ................\n"
" 0000000010000060 ---------------- ---------------- ................\n"
" 0000000010000070 ---------------- ---------------- ................\n"
" 0000000010000080 ---------------- ---------------- ................\n"
" 0000000010000090 ---------------- ---------------- ................\n"
" 00000000100000a0 ---------------- ---------------- ................\n"
" 00000000100000b0 ---------------- ---------------- ................\n"
" 00000000100000c0 ---------------- ---------------- ................\n"
" 00000000100000d0 ---------------- ---------------- ................\n"
" 00000000100000e0 ---------------- ---------------- ................\n"
" 00000000100000f0 ---------------- ---------------- ................\n";
#else
" 10000000 -------- -------- -------- -------- ................\n"
" 10000010 -------- -------- -------- -------- ................\n"
" 10000020 -------- -------- -------- -------- ................\n"
" 10000030 -------- -------- -------- -------- ................\n"
" 10000040 -------- -------- -------- -------- ................\n"
" 10000050 -------- -------- -------- -------- ................\n"
" 10000060 -------- -------- -------- -------- ................\n"
" 10000070 -------- -------- -------- -------- ................\n"
" 10000080 -------- -------- -------- -------- ................\n"
" 10000090 -------- -------- -------- -------- ................\n"
" 100000a0 -------- -------- -------- -------- ................\n"
" 100000b0 -------- -------- -------- -------- ................\n"
" 100000c0 -------- -------- -------- -------- ................\n"
" 100000d0 -------- -------- -------- -------- ................\n"
" 100000e0 -------- -------- -------- -------- ................\n"
" 100000f0 -------- -------- -------- -------- ................\n";
#endif
ASSERT_STREQ(expected_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}
TEST_F(DumpMemoryTest, first_read_empty_next_page_out_of_range_fence_post) {
uint8_t buffer[256];
for (size_t i = 0; i < sizeof(buffer); i++) {
buffer[i] = i;
}
memory_mock_->SetReadData(buffer, sizeof(buffer));
memory_mock_->SetPartialReadAmount(0);
size_t page_size = sysconf(_SC_PAGE_SIZE);
uintptr_t addr = 0x10000020 + page_size - 256;
dump_memory(&log_, memory_mock_.get(), addr, "memory near r4");
std::string tombstone_contents;
ASSERT_TRUE(lseek(log_.tfd, 0, SEEK_SET) == 0);
ASSERT_TRUE(android::base::ReadFdToString(log_.tfd, &tombstone_contents));
const char* expected_dump = \
"\nmemory near r4:\n"
#if defined(__LP64__)
" 0000000010000f00 ---------------- ---------------- ................\n"
" 0000000010000f10 ---------------- ---------------- ................\n"
" 0000000010000f20 ---------------- ---------------- ................\n"
" 0000000010000f30 ---------------- ---------------- ................\n"
" 0000000010000f40 ---------------- ---------------- ................\n"
" 0000000010000f50 ---------------- ---------------- ................\n"
" 0000000010000f60 ---------------- ---------------- ................\n"
" 0000000010000f70 ---------------- ---------------- ................\n"
" 0000000010000f80 ---------------- ---------------- ................\n"
" 0000000010000f90 ---------------- ---------------- ................\n"
" 0000000010000fa0 ---------------- ---------------- ................\n"
" 0000000010000fb0 ---------------- ---------------- ................\n"
" 0000000010000fc0 ---------------- ---------------- ................\n"
" 0000000010000fd0 ---------------- ---------------- ................\n"
" 0000000010000fe0 ---------------- ---------------- ................\n"
" 0000000010000ff0 ---------------- ---------------- ................\n";
#else
" 10000f00 -------- -------- -------- -------- ................\n"
" 10000f10 -------- -------- -------- -------- ................\n"
" 10000f20 -------- -------- -------- -------- ................\n"
" 10000f30 -------- -------- -------- -------- ................\n"
" 10000f40 -------- -------- -------- -------- ................\n"
" 10000f50 -------- -------- -------- -------- ................\n"
" 10000f60 -------- -------- -------- -------- ................\n"
" 10000f70 -------- -------- -------- -------- ................\n"
" 10000f80 -------- -------- -------- -------- ................\n"
" 10000f90 -------- -------- -------- -------- ................\n"
" 10000fa0 -------- -------- -------- -------- ................\n"
" 10000fb0 -------- -------- -------- -------- ................\n"
" 10000fc0 -------- -------- -------- -------- ................\n"
" 10000fd0 -------- -------- -------- -------- ................\n"
" 10000fe0 -------- -------- -------- -------- ................\n"
" 10000ff0 -------- -------- -------- -------- ................\n";
#endif
ASSERT_STREQ(expected_dump, tombstone_contents.c_str());
// Verify that the log buf is empty, and no error messages.
ASSERT_STREQ("", getFakeLogBuf().c_str());
ASSERT_STREQ("", getFakeLogPrint().c_str());
}