Merge changes I20670684,If38c6d14,I94889125,I66169ed5
* changes:
tombstoned: add tests for b/36685795.
tombstoned: fix a race between intercept and crash_dump.
tombstoned: refactor request dequeuing a bit.
tombstoned: don't increment num_concurrent_dumps until success.
diff --git a/adb/sysdeps.h b/adb/sysdeps.h
index f195b4e..f95a855 100644
--- a/adb/sysdeps.h
+++ b/adb/sysdeps.h
@@ -268,10 +268,6 @@
#undef accept
#define accept ___xxx_accept
-int adb_getsockname(int fd, struct sockaddr* sockaddr, socklen_t* optlen);
-#undef getsockname
-#define getsockname(...) ___xxx_getsockname(__VA__ARGS__)
-
// Returns the local port number of a bound socket, or -1 on failure.
int adb_socket_get_local_port(int fd);
diff --git a/adb/sysdeps_win32.cpp b/adb/sysdeps_win32.cpp
index f997e6b..5873b2b 100644
--- a/adb/sysdeps_win32.cpp
+++ b/adb/sysdeps_win32.cpp
@@ -984,7 +984,7 @@
return -1;
}
- int result = (getsockname)(fh->fh_socket, sockaddr, optlen);
+ int result = getsockname(fh->fh_socket, sockaddr, optlen);
if (result == SOCKET_ERROR) {
const DWORD err = WSAGetLastError();
D("adb_getsockname: setsockopt on fd %d failed: %s\n", fd,
@@ -1042,11 +1042,6 @@
int local_port = -1;
std::string error;
- struct sockaddr_storage peer_addr = {};
- struct sockaddr_storage client_addr = {};
- socklen_t peer_socklen = sizeof(peer_addr);
- socklen_t client_socklen = sizeof(client_addr);
-
server = network_loopback_server(0, SOCK_STREAM, &error);
if (server < 0) {
D("adb_socketpair: failed to create server: %s", error.c_str());
@@ -1066,32 +1061,12 @@
goto fail;
}
- // Make sure that the peer that connected to us and the client are the same.
- accepted = adb_socket_accept(server, reinterpret_cast<sockaddr*>(&peer_addr), &peer_socklen);
+ accepted = adb_socket_accept(server, nullptr, nullptr);
if (accepted < 0) {
D("adb_socketpair: failed to accept: %s", strerror(errno));
goto fail;
}
-
- if (adb_getsockname(client, reinterpret_cast<sockaddr*>(&client_addr), &client_socklen) != 0) {
- D("adb_socketpair: failed to getpeername: %s", strerror(errno));
- goto fail;
- }
-
- if (peer_socklen != client_socklen) {
- D("adb_socketpair: client and peer sockaddrs have different lengths");
- errno = EIO;
- goto fail;
- }
-
- if (memcmp(&peer_addr, &client_addr, peer_socklen) != 0) {
- D("adb_socketpair: client and peer sockaddrs don't match");
- errno = EIO;
- goto fail;
- }
-
adb_close(server);
-
sv[0] = client;
sv[1] = accepted;
return 0;
diff --git a/init/README.md b/init/README.md
index 0d8f495..e66ade2 100644
--- a/init/README.md
+++ b/init/README.md
@@ -286,11 +286,6 @@
`copy <src> <dst>`
> Copies a file. Similar to write, but useful for binary/large
amounts of data.
- Regarding to the src file, copying from symbol link file and world-writable
- or group-writable files are not allowed.
- Regarding to the dst file, the default mode created is 0600 if it does not
- exist. And it will be truncated if dst file is a normal regular file and
- already exists.
`domainname <name>`
> Set the domain name.
diff --git a/init/builtins.cpp b/init/builtins.cpp
index 02e314f..d8569d7 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -702,11 +702,61 @@
}
static int do_copy(const std::vector<std::string>& args) {
- std::string data;
- if (read_file(args[1].c_str(), &data)) {
- return write_file(args[2].c_str(), data.data()) ? 0 : 1;
+ char *buffer = NULL;
+ int rc = 0;
+ int fd1 = -1, fd2 = -1;
+ struct stat info;
+ int brtw, brtr;
+ char *p;
+
+ if (stat(args[1].c_str(), &info) < 0)
+ return -1;
+
+ if ((fd1 = open(args[1].c_str(), O_RDONLY|O_CLOEXEC)) < 0)
+ goto out_err;
+
+ if ((fd2 = open(args[2].c_str(), O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC, 0660)) < 0)
+ goto out_err;
+
+ if (!(buffer = (char*) malloc(info.st_size)))
+ goto out_err;
+
+ p = buffer;
+ brtr = info.st_size;
+ while(brtr) {
+ rc = read(fd1, p, brtr);
+ if (rc < 0)
+ goto out_err;
+ if (rc == 0)
+ break;
+ p += rc;
+ brtr -= rc;
}
- return 1;
+
+ p = buffer;
+ brtw = info.st_size;
+ while(brtw) {
+ rc = write(fd2, p, brtw);
+ if (rc < 0)
+ goto out_err;
+ if (rc == 0)
+ break;
+ p += rc;
+ brtw -= rc;
+ }
+
+ rc = 0;
+ goto out;
+out_err:
+ rc = -1;
+out:
+ if (buffer)
+ free(buffer);
+ if (fd1 >= 0)
+ close(fd1);
+ if (fd2 >= 0)
+ close(fd2);
+ return rc;
}
static int do_chown(const std::vector<std::string>& args) {
diff --git a/init/init.cpp b/init/init.cpp
index 4249115..6f3b3a6 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -875,6 +875,24 @@
}
}
+// The files and directories that were created before initial sepolicy load
+// need to have their security context restored to the proper value.
+// This must happen before /dev is populated by ueventd.
+static void selinux_restore_context() {
+ LOG(INFO) << "Running restorecon...";
+ restorecon("/dev");
+ restorecon("/dev/kmsg");
+ restorecon("/dev/socket");
+ restorecon("/dev/random");
+ restorecon("/dev/urandom");
+ restorecon("/dev/__properties__");
+ restorecon("/plat_property_contexts");
+ restorecon("/nonplat_property_contexts");
+ restorecon("/sys", SELINUX_ANDROID_RESTORECON_RECURSE);
+ restorecon("/dev/block", SELINUX_ANDROID_RESTORECON_RECURSE);
+ restorecon("/dev/device-mapper");
+}
+
// Set the UDC controller for the ConfigFS USB Gadgets.
// Read the UDC controller in use from "/sys/class/udc".
// In case of multiple UDC controllers select the first one.
@@ -1213,22 +1231,7 @@
// Now set up SELinux for second stage.
selinux_initialize(false);
-
- // These directories were necessarily created before initial policy load
- // and therefore need their security context restored to the proper value.
- // This must happen before /dev is populated by ueventd.
- LOG(INFO) << "Running restorecon...";
- restorecon("/dev");
- restorecon("/dev/kmsg");
- restorecon("/dev/socket");
- restorecon("/dev/random");
- restorecon("/dev/urandom");
- restorecon("/dev/__properties__");
- restorecon("/plat_property_contexts");
- restorecon("/nonplat_property_contexts");
- restorecon("/sys", SELINUX_ANDROID_RESTORECON_RECURSE);
- restorecon("/dev/block", SELINUX_ANDROID_RESTORECON_RECURSE);
- restorecon("/dev/device-mapper");
+ selinux_restore_context();
epoll_fd = epoll_create1(EPOLL_CLOEXEC);
if (epoll_fd == -1) {
diff --git a/init/service.cpp b/init/service.cpp
index ede6364..3db34db 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -211,7 +211,13 @@
LOG(INFO) << "Sending signal " << signal
<< " to service '" << name_
<< "' (pid " << pid_ << ") process group...";
- if (killProcessGroup(uid_, pid_, signal) == -1) {
+ int r;
+ if (signal == SIGTERM) {
+ r = killProcessGroupOnce(uid_, pid_, signal);
+ } else {
+ r = killProcessGroup(uid_, pid_, signal);
+ }
+ if (r == -1) {
PLOG(ERROR) << "killProcessGroup(" << uid_ << ", " << pid_ << ", " << signal << ") failed";
}
if (kill(-pid_, signal) == -1) {
diff --git a/init/util.cpp b/init/util.cpp
index 8a19939..73d97ed 100644
--- a/init/util.cpp
+++ b/init/util.cpp
@@ -185,8 +185,8 @@
}
bool write_file(const char* path, const char* content) {
- android::base::unique_fd fd(TEMP_FAILURE_RETRY(
- open(path, O_WRONLY | O_CREAT | O_NOFOLLOW | O_TRUNC | O_CLOEXEC, 0600)));
+ android::base::unique_fd fd(
+ TEMP_FAILURE_RETRY(open(path, O_WRONLY | O_CREAT | O_NOFOLLOW | O_CLOEXEC, 0600)));
if (fd == -1) {
PLOG(ERROR) << "write_file: Unable to open '" << path << "'";
return false;
diff --git a/init/util_test.cpp b/init/util_test.cpp
index 4e82e76..24c75c4 100644
--- a/init/util_test.cpp
+++ b/init/util_test.cpp
@@ -17,15 +17,9 @@
#include "util.h"
#include <errno.h>
-#include <fcntl.h>
-
-#include <sys/stat.h>
#include <gtest/gtest.h>
-#include <android-base/stringprintf.h>
-#include <android-base/test_utils.h>
-
TEST(util, read_file_ENOENT) {
std::string s("hello");
errno = 0;
@@ -34,35 +28,6 @@
EXPECT_EQ("", s); // s was cleared.
}
-TEST(util, read_file_group_writeable) {
- std::string s("hello");
- TemporaryFile tf;
- ASSERT_TRUE(tf.fd != -1);
- EXPECT_TRUE(write_file(tf.path, s.c_str())) << strerror(errno);
- EXPECT_NE(-1, fchmodat(AT_FDCWD, tf.path, 0620, AT_SYMLINK_NOFOLLOW)) << strerror(errno);
- EXPECT_FALSE(read_file(tf.path, &s)) << strerror(errno);
- EXPECT_EQ("", s); // s was cleared.
-}
-
-TEST(util, read_file_world_writeable) {
- std::string s("hello");
- TemporaryFile tf;
- ASSERT_TRUE(tf.fd != -1);
- EXPECT_TRUE(write_file(tf.path, s.c_str())) << strerror(errno);
- EXPECT_NE(-1, fchmodat(AT_FDCWD, tf.path, 0602, AT_SYMLINK_NOFOLLOW)) << strerror(errno);
- EXPECT_FALSE(read_file(tf.path, &s)) << strerror(errno);
- EXPECT_EQ("", s); // s was cleared.
-}
-
-TEST(util, read_file_symbol_link) {
- std::string s("hello");
- errno = 0;
- // lrwxrwxrwx 1 root root 13 1970-01-01 00:00 charger -> /sbin/healthd
- EXPECT_FALSE(read_file("/charger", &s));
- EXPECT_EQ(ELOOP, errno);
- EXPECT_EQ("", s); // s was cleared.
-}
-
TEST(util, read_file_success) {
std::string s("hello");
EXPECT_TRUE(read_file("/proc/version", &s));
@@ -72,42 +37,6 @@
EXPECT_STREQ("Linux", s.c_str());
}
-TEST(util, write_file_not_exist) {
- std::string s("hello");
- std::string s2("hello");
- TemporaryDir test_dir;
- std::string path = android::base::StringPrintf("%s/does-not-exist", test_dir.path);
- EXPECT_TRUE(write_file(path.c_str(), s.c_str()));
- EXPECT_TRUE(read_file(path.c_str(), &s2));
- EXPECT_EQ(s, s2);
- struct stat sb;
- int fd = open(path.c_str(), O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
- EXPECT_NE(-1, fd);
- EXPECT_EQ(0, fstat(fd, &sb));
- EXPECT_NE(0u, sb.st_mode & S_IRUSR);
- EXPECT_NE(0u, sb.st_mode & S_IWUSR);
- EXPECT_EQ(0u, sb.st_mode & S_IXUSR);
- EXPECT_EQ(0u, sb.st_mode & S_IRGRP);
- EXPECT_EQ(0u, sb.st_mode & S_IWGRP);
- EXPECT_EQ(0u, sb.st_mode & S_IXGRP);
- EXPECT_EQ(0u, sb.st_mode & S_IROTH);
- EXPECT_EQ(0u, sb.st_mode & S_IWOTH);
- EXPECT_EQ(0u, sb.st_mode & S_IXOTH);
- EXPECT_EQ(0, unlink(path.c_str()));
-}
-
-TEST(util, write_file_exist) {
- std::string s2("");
- TemporaryFile tf;
- ASSERT_TRUE(tf.fd != -1);
- EXPECT_TRUE(write_file(tf.path, "1hello1")) << strerror(errno);
- EXPECT_TRUE(read_file(tf.path, &s2));
- EXPECT_STREQ("1hello1", s2.c_str());
- EXPECT_TRUE(write_file(tf.path, "2hello2"));
- EXPECT_TRUE(read_file(tf.path, &s2));
- EXPECT_STREQ("2hello2", s2.c_str());
-}
-
TEST(util, decode_uid) {
EXPECT_EQ(0U, decode_uid("root"));
EXPECT_EQ(UINT_MAX, decode_uid("toot"));
diff --git a/libcutils/tests/Android.bp b/libcutils/tests/Android.bp
index 718d76b..c663a5d 100644
--- a/libcutils/tests/Android.bp
+++ b/libcutils/tests/Android.bp
@@ -69,6 +69,7 @@
cc_test {
name: "libcutils_test_static",
+ test_suites: ["device-tests"],
defaults: ["libcutils_test_default"],
static_libs: ["libc"] + test_libraries,
stl: "libc++_static",
diff --git a/libcutils/tests/AndroidTest.xml b/libcutils/tests/AndroidTest.xml
new file mode 100644
index 0000000..c945f4d
--- /dev/null
+++ b/libcutils/tests/AndroidTest.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2017 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.
+-->
+<configuration description="Config for libcutils_test_static">
+ <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
+ <option name="cleanup" value="true" />
+ <option name="push" value="libcutils_test_static->/data/local/tmp/libcutils_test_static" />
+ </target_preparer>
+ <option name="test-suite-tag" value="apct" />
+ <test class="com.android.tradefed.testtype.GTest" >
+ <option name="native-test-device-path" value="/data/local/tmp" />
+ <option name="module-name" value="libcutils_test_static" />
+ </test>
+</configuration>
\ No newline at end of file
diff --git a/libnativebridge/.clang-format b/libnativebridge/.clang-format
new file mode 120000
index 0000000..fd0645f
--- /dev/null
+++ b/libnativebridge/.clang-format
@@ -0,0 +1 @@
+../.clang-format-2
\ No newline at end of file
diff --git a/libnativeloader/.clang-format b/libnativeloader/.clang-format
new file mode 120000
index 0000000..fd0645f
--- /dev/null
+++ b/libnativeloader/.clang-format
@@ -0,0 +1 @@
+../.clang-format-2
\ No newline at end of file
diff --git a/libprocessgroup/include/processgroup/processgroup.h b/libprocessgroup/include/processgroup/processgroup.h
index 11bd8cc..47f6ff3 100644
--- a/libprocessgroup/include/processgroup/processgroup.h
+++ b/libprocessgroup/include/processgroup/processgroup.h
@@ -24,6 +24,8 @@
int killProcessGroup(uid_t uid, int initialPid, int signal);
+int killProcessGroupOnce(uid_t uid, int initialPid, int signal);
+
int createProcessGroup(uid_t uid, int initialPid);
void removeAllProcessGroups(void);
diff --git a/libprocessgroup/processgroup.cpp b/libprocessgroup/processgroup.cpp
index eb66727..1572cb3 100644
--- a/libprocessgroup/processgroup.cpp
+++ b/libprocessgroup/processgroup.cpp
@@ -252,8 +252,7 @@
}
}
-static int killProcessGroupOnce(uid_t uid, int initialPid, int signal)
-{
+static int doKillProcessGroupOnce(uid_t uid, int initialPid, int signal) {
int processes = 0;
struct ctx ctx;
pid_t pid;
@@ -282,13 +281,11 @@
return processes;
}
-int killProcessGroup(uid_t uid, int initialPid, int signal)
-{
+static int killProcessGroup(uid_t uid, int initialPid, int signal, int retry) {
std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now();
- int retry = 40;
int processes;
- while ((processes = killProcessGroupOnce(uid, initialPid, signal)) > 0) {
+ while ((processes = doKillProcessGroupOnce(uid, initialPid, signal)) > 0) {
LOG(VERBOSE) << "killed " << processes << " processes for processgroup " << initialPid;
if (retry > 0) {
std::this_thread::sleep_for(5ms);
@@ -313,6 +310,14 @@
}
}
+int killProcessGroup(uid_t uid, int initialPid, int signal) {
+ return killProcessGroup(uid, initialPid, signal, 40 /*maxRetry*/);
+}
+
+int killProcessGroupOnce(uid_t uid, int initialPid, int signal) {
+ return killProcessGroup(uid, initialPid, signal, 0 /*maxRetry*/);
+}
+
static bool mkdirAndChown(const char *path, mode_t mode, uid_t uid, gid_t gid)
{
if (mkdir(path, mode) == -1 && errno != EEXIST) {
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index ece623b..dabeac1 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -47,6 +47,7 @@
srcs: [
"ArmExidx.cpp",
+ "DwarfMemory.cpp",
"Elf.cpp",
"ElfInterface.cpp",
"ElfInterfaceArm.cpp",
@@ -87,6 +88,7 @@
srcs: [
"tests/ArmExidxDecodeTest.cpp",
"tests/ArmExidxExtractTest.cpp",
+ "tests/DwarfMemoryTest.cpp",
"tests/ElfInterfaceArmTest.cpp",
"tests/ElfInterfaceTest.cpp",
"tests/ElfTest.cpp",
diff --git a/libunwindstack/DwarfEncoding.h b/libunwindstack/DwarfEncoding.h
new file mode 100644
index 0000000..0ff3b8c
--- /dev/null
+++ b/libunwindstack/DwarfEncoding.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef _LIBUNWINDSTACK_DWARF_ENCODING_H
+#define _LIBUNWINDSTACK_DWARF_ENCODING_H
+
+#include <stdint.h>
+
+enum DwarfEncoding : uint8_t {
+ DW_EH_PE_omit = 0xff,
+
+ DW_EH_PE_absptr = 0x00,
+ DW_EH_PE_uleb128 = 0x01,
+ DW_EH_PE_udata2 = 0x02,
+ DW_EH_PE_udata4 = 0x03,
+ DW_EH_PE_udata8 = 0x04,
+ DW_EH_PE_sleb128 = 0x09,
+ DW_EH_PE_sdata2 = 0x0a,
+ DW_EH_PE_sdata4 = 0x0b,
+ DW_EH_PE_sdata8 = 0x0c,
+
+ DW_EH_PE_pcrel = 0x10,
+ DW_EH_PE_textrel = 0x20,
+ DW_EH_PE_datarel = 0x30,
+ DW_EH_PE_funcrel = 0x40,
+ DW_EH_PE_aligned = 0x50,
+
+ // The following are special values used to encode CFA and OP operands.
+ DW_EH_PE_udata1 = 0x0d,
+ DW_EH_PE_sdata1 = 0x0e,
+ DW_EH_PE_block = 0x0f,
+};
+
+#endif // _LIBUNWINDSTACK_DWARF_ENCODING_H
diff --git a/libunwindstack/DwarfMemory.cpp b/libunwindstack/DwarfMemory.cpp
new file mode 100644
index 0000000..11806ea
--- /dev/null
+++ b/libunwindstack/DwarfMemory.cpp
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 2017 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 <assert.h>
+#include <stdint.h>
+
+#include <string>
+
+#include "DwarfEncoding.h"
+#include "DwarfMemory.h"
+#include "Memory.h"
+
+bool DwarfMemory::ReadBytes(void* dst, size_t num_bytes) {
+ if (!memory_->Read(cur_offset_, dst, num_bytes)) {
+ return false;
+ }
+ cur_offset_ += num_bytes;
+ return true;
+}
+
+template <typename SignedType>
+bool DwarfMemory::ReadSigned(uint64_t* value) {
+ SignedType signed_value;
+ if (!ReadBytes(&signed_value, sizeof(SignedType))) {
+ return false;
+ }
+ *value = static_cast<int64_t>(signed_value);
+ return true;
+}
+
+bool DwarfMemory::ReadULEB128(uint64_t* value) {
+ uint64_t cur_value = 0;
+ uint64_t shift = 0;
+ uint8_t byte;
+ do {
+ if (!ReadBytes(&byte, 1)) {
+ return false;
+ }
+ cur_value += static_cast<uint64_t>(byte & 0x7f) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+ *value = cur_value;
+ return true;
+}
+
+bool DwarfMemory::ReadSLEB128(int64_t* value) {
+ uint64_t cur_value = 0;
+ uint64_t shift = 0;
+ uint8_t byte;
+ do {
+ if (!ReadBytes(&byte, 1)) {
+ return false;
+ }
+ cur_value += static_cast<uint64_t>(byte & 0x7f) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+ if (byte & 0x40) {
+ // Negative value, need to sign extend.
+ cur_value |= static_cast<uint64_t>(-1) << shift;
+ }
+ *value = static_cast<int64_t>(cur_value);
+ return true;
+}
+
+template <typename AddressType>
+size_t DwarfMemory::GetEncodedSize(uint8_t encoding) {
+ switch (encoding & 0x0f) {
+ case DW_EH_PE_absptr:
+ return sizeof(AddressType);
+ case DW_EH_PE_udata1:
+ case DW_EH_PE_sdata1:
+ return 1;
+ case DW_EH_PE_udata2:
+ case DW_EH_PE_sdata2:
+ return 2;
+ case DW_EH_PE_udata4:
+ case DW_EH_PE_sdata4:
+ return 4;
+ case DW_EH_PE_udata8:
+ case DW_EH_PE_sdata8:
+ return 8;
+ case DW_EH_PE_uleb128:
+ case DW_EH_PE_sleb128:
+ default:
+ return 0;
+ }
+}
+
+bool DwarfMemory::AdjustEncodedValue(uint8_t encoding, uint64_t* value) {
+ assert((encoding & 0x0f) == 0);
+ assert(encoding != DW_EH_PE_aligned);
+
+ // Handle the encoding.
+ switch (encoding) {
+ case DW_EH_PE_absptr:
+ // Nothing to do.
+ break;
+ case DW_EH_PE_pcrel:
+ if (pc_offset_ == static_cast<uint64_t>(-1)) {
+ // Unsupported encoding.
+ return false;
+ }
+ *value += pc_offset_;
+ break;
+ case DW_EH_PE_textrel:
+ if (text_offset_ == static_cast<uint64_t>(-1)) {
+ // Unsupported encoding.
+ return false;
+ }
+ *value += text_offset_;
+ break;
+ case DW_EH_PE_datarel:
+ if (data_offset_ == static_cast<uint64_t>(-1)) {
+ // Unsupported encoding.
+ return false;
+ }
+ *value += data_offset_;
+ break;
+ case DW_EH_PE_funcrel:
+ if (func_offset_ == static_cast<uint64_t>(-1)) {
+ // Unsupported encoding.
+ return false;
+ }
+ *value += func_offset_;
+ break;
+ default:
+ return false;
+ }
+
+ return true;
+}
+
+template <typename AddressType>
+bool DwarfMemory::ReadEncodedValue(uint8_t encoding, uint64_t* value) {
+ if (encoding == DW_EH_PE_omit) {
+ *value = 0;
+ return true;
+ } else if (encoding == DW_EH_PE_aligned) {
+ if (__builtin_add_overflow(cur_offset_, sizeof(AddressType) - 1, &cur_offset_)) {
+ return false;
+ }
+ cur_offset_ &= -sizeof(AddressType);
+
+ if (sizeof(AddressType) != sizeof(uint64_t)) {
+ *value = 0;
+ }
+ return ReadBytes(value, sizeof(AddressType));
+ }
+
+ // Get the data.
+ switch (encoding & 0x0f) {
+ case DW_EH_PE_absptr:
+ if (sizeof(AddressType) != sizeof(uint64_t)) {
+ *value = 0;
+ }
+ if (!ReadBytes(value, sizeof(AddressType))) {
+ return false;
+ }
+ break;
+ case DW_EH_PE_uleb128:
+ if (!ReadULEB128(value)) {
+ return false;
+ }
+ break;
+ case DW_EH_PE_sleb128:
+ int64_t signed_value;
+ if (!ReadSLEB128(&signed_value)) {
+ return false;
+ }
+ *value = static_cast<uint64_t>(signed_value);
+ break;
+ case DW_EH_PE_udata1: {
+ uint8_t value8;
+ if (!ReadBytes(&value8, 1)) {
+ return false;
+ }
+ *value = value8;
+ } break;
+ case DW_EH_PE_sdata1:
+ if (!ReadSigned<int8_t>(value)) {
+ return false;
+ }
+ break;
+ case DW_EH_PE_udata2: {
+ uint16_t value16;
+ if (!ReadBytes(&value16, 2)) {
+ return false;
+ }
+ *value = value16;
+ } break;
+ case DW_EH_PE_sdata2:
+ if (!ReadSigned<int16_t>(value)) {
+ return false;
+ }
+ break;
+ case DW_EH_PE_udata4: {
+ uint32_t value32;
+ if (!ReadBytes(&value32, 4)) {
+ return false;
+ }
+ *value = value32;
+ } break;
+ case DW_EH_PE_sdata4:
+ if (!ReadSigned<int32_t>(value)) {
+ return false;
+ }
+ break;
+ case DW_EH_PE_udata8:
+ if (!ReadBytes(value, sizeof(uint64_t))) {
+ return false;
+ }
+ break;
+ case DW_EH_PE_sdata8:
+ if (!ReadSigned<int64_t>(value)) {
+ return false;
+ }
+ break;
+ default:
+ return false;
+ }
+
+ return AdjustEncodedValue(encoding & 0xf0, value);
+}
+
+// Instantiate all of the needed template functions.
+template bool DwarfMemory::ReadSigned<int8_t>(uint64_t*);
+template bool DwarfMemory::ReadSigned<int16_t>(uint64_t*);
+template bool DwarfMemory::ReadSigned<int32_t>(uint64_t*);
+template bool DwarfMemory::ReadSigned<int64_t>(uint64_t*);
+
+template size_t DwarfMemory::GetEncodedSize<uint32_t>(uint8_t);
+template size_t DwarfMemory::GetEncodedSize<uint64_t>(uint8_t);
+
+template bool DwarfMemory::ReadEncodedValue<uint32_t>(uint8_t, uint64_t*);
+template bool DwarfMemory::ReadEncodedValue<uint64_t>(uint8_t, uint64_t*);
diff --git a/libunwindstack/DwarfMemory.h b/libunwindstack/DwarfMemory.h
new file mode 100644
index 0000000..a304dd9
--- /dev/null
+++ b/libunwindstack/DwarfMemory.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef _LIBUNWINDSTACK_DWARF_MEMORY_H
+#define _LIBUNWINDSTACK_DWARF_MEMORY_H
+
+#include <stdint.h>
+
+// Forward declarations.
+class Memory;
+
+class DwarfMemory {
+ public:
+ DwarfMemory(Memory* memory) : memory_(memory) {}
+ virtual ~DwarfMemory() = default;
+
+ bool ReadBytes(void* dst, size_t num_bytes);
+
+ template <typename SignedType>
+ bool ReadSigned(uint64_t* value);
+
+ bool ReadULEB128(uint64_t* value);
+
+ bool ReadSLEB128(int64_t* value);
+
+ template <typename AddressType>
+ size_t GetEncodedSize(uint8_t encoding);
+
+ bool AdjustEncodedValue(uint8_t encoding, uint64_t* value);
+
+ template <typename AddressType>
+ bool ReadEncodedValue(uint8_t encoding, uint64_t* value);
+
+ uint64_t cur_offset() { return cur_offset_; }
+ void set_cur_offset(uint64_t cur_offset) { cur_offset_ = cur_offset; }
+
+ void set_pc_offset(uint64_t offset) { pc_offset_ = offset; }
+ void clear_pc_offset() { pc_offset_ = static_cast<uint64_t>(-1); }
+
+ void set_data_offset(uint64_t offset) { data_offset_ = offset; }
+ void clear_data_offset() { data_offset_ = static_cast<uint64_t>(-1); }
+
+ void set_func_offset(uint64_t offset) { func_offset_ = offset; }
+ void clear_func_offset() { func_offset_ = static_cast<uint64_t>(-1); }
+
+ void set_text_offset(uint64_t offset) { text_offset_ = offset; }
+ void clear_text_offset() { text_offset_ = static_cast<uint64_t>(-1); }
+
+ private:
+ Memory* memory_;
+ uint64_t cur_offset_ = 0;
+
+ uint64_t pc_offset_ = static_cast<uint64_t>(-1);
+ uint64_t data_offset_ = static_cast<uint64_t>(-1);
+ uint64_t func_offset_ = static_cast<uint64_t>(-1);
+ uint64_t text_offset_ = static_cast<uint64_t>(-1);
+};
+
+#endif // _LIBUNWINDSTACK_DWARF_MEMORY_H
diff --git a/libunwindstack/tests/DwarfMemoryTest.cpp b/libunwindstack/tests/DwarfMemoryTest.cpp
new file mode 100644
index 0000000..4877f36
--- /dev/null
+++ b/libunwindstack/tests/DwarfMemoryTest.cpp
@@ -0,0 +1,472 @@
+/*
+ * Copyright (C) 2017 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 <stdint.h>
+
+#include <ios>
+#include <vector>
+
+#include <gtest/gtest.h>
+
+#include "DwarfMemory.h"
+
+#include "MemoryFake.h"
+
+class DwarfMemoryTest : public ::testing::Test {
+ protected:
+ void SetUp() override {
+ memory_.Clear();
+ dwarf_mem_.reset(new DwarfMemory(&memory_));
+ }
+
+ template <typename AddressType>
+ void GetEncodedSizeTest(uint8_t value, size_t expected);
+ template <typename AddressType>
+ void ReadEncodedValue_omit();
+ template <typename AddressType>
+ void ReadEncodedValue_leb128();
+ template <typename AddressType>
+ void ReadEncodedValue_data1();
+ template <typename AddressType>
+ void ReadEncodedValue_data2();
+ template <typename AddressType>
+ void ReadEncodedValue_data4();
+ template <typename AddressType>
+ void ReadEncodedValue_data8();
+ template <typename AddressType>
+ void ReadEncodedValue_non_zero_adjust();
+ template <typename AddressType>
+ void ReadEncodedValue_overflow();
+
+ MemoryFake memory_;
+ std::unique_ptr<DwarfMemory> dwarf_mem_;
+};
+
+TEST_F(DwarfMemoryTest, ReadBytes) {
+ memory_.SetMemory(0, std::vector<uint8_t>{0x10, 0x18, 0xff, 0xfe});
+
+ uint8_t byte;
+ ASSERT_TRUE(dwarf_mem_->ReadBytes(&byte, 1));
+ ASSERT_EQ(0x10U, byte);
+ ASSERT_TRUE(dwarf_mem_->ReadBytes(&byte, 1));
+ ASSERT_EQ(0x18U, byte);
+ ASSERT_TRUE(dwarf_mem_->ReadBytes(&byte, 1));
+ ASSERT_EQ(0xffU, byte);
+ ASSERT_TRUE(dwarf_mem_->ReadBytes(&byte, 1));
+ ASSERT_EQ(0xfeU, byte);
+ ASSERT_EQ(4U, dwarf_mem_->cur_offset());
+
+ dwarf_mem_->set_cur_offset(2);
+ ASSERT_TRUE(dwarf_mem_->ReadBytes(&byte, 1));
+ ASSERT_EQ(0xffU, byte);
+ ASSERT_EQ(3U, dwarf_mem_->cur_offset());
+}
+
+TEST_F(DwarfMemoryTest, ReadSigned_check) {
+ uint64_t value;
+
+ // Signed 8 byte reads.
+ memory_.SetData8(0, static_cast<uint8_t>(-10));
+ memory_.SetData8(1, 200);
+ ASSERT_TRUE(dwarf_mem_->ReadSigned<int8_t>(&value));
+ ASSERT_EQ(static_cast<int8_t>(-10), static_cast<int8_t>(value));
+ ASSERT_TRUE(dwarf_mem_->ReadSigned<int8_t>(&value));
+ ASSERT_EQ(static_cast<int8_t>(200), static_cast<int8_t>(value));
+
+ // Signed 16 byte reads.
+ memory_.SetData16(0x10, static_cast<uint16_t>(-1000));
+ memory_.SetData16(0x12, 50100);
+ dwarf_mem_->set_cur_offset(0x10);
+ ASSERT_TRUE(dwarf_mem_->ReadSigned<int16_t>(&value));
+ ASSERT_EQ(static_cast<int16_t>(-1000), static_cast<int16_t>(value));
+ ASSERT_TRUE(dwarf_mem_->ReadSigned<int16_t>(&value));
+ ASSERT_EQ(static_cast<int16_t>(50100), static_cast<int16_t>(value));
+
+ // Signed 32 byte reads.
+ memory_.SetData32(0x100, static_cast<uint32_t>(-1000000000));
+ memory_.SetData32(0x104, 3000000000);
+ dwarf_mem_->set_cur_offset(0x100);
+ ASSERT_TRUE(dwarf_mem_->ReadSigned<int32_t>(&value));
+ ASSERT_EQ(static_cast<int32_t>(-1000000000), static_cast<int32_t>(value));
+ ASSERT_TRUE(dwarf_mem_->ReadSigned<int32_t>(&value));
+ ASSERT_EQ(static_cast<int32_t>(3000000000), static_cast<int32_t>(value));
+
+ // Signed 64 byte reads.
+ memory_.SetData64(0x200, static_cast<uint64_t>(-2000000000000LL));
+ memory_.SetData64(0x208, 5000000000000LL);
+ dwarf_mem_->set_cur_offset(0x200);
+ ASSERT_TRUE(dwarf_mem_->ReadSigned<int64_t>(&value));
+ ASSERT_EQ(static_cast<int64_t>(-2000000000000), static_cast<int64_t>(value));
+ ASSERT_TRUE(dwarf_mem_->ReadSigned<int64_t>(&value));
+ ASSERT_EQ(static_cast<int64_t>(5000000000000), static_cast<int64_t>(value));
+}
+
+TEST_F(DwarfMemoryTest, ReadULEB128) {
+ memory_.SetMemory(0, std::vector<uint8_t>{0x01, 0x80, 0x24, 0xff, 0xc3, 0xff, 0x7f});
+
+ uint64_t value;
+ ASSERT_TRUE(dwarf_mem_->ReadULEB128(&value));
+ ASSERT_EQ(1U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(1U, value);
+
+ ASSERT_TRUE(dwarf_mem_->ReadULEB128(&value));
+ ASSERT_EQ(3U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0x1200U, value);
+
+ ASSERT_TRUE(dwarf_mem_->ReadULEB128(&value));
+ ASSERT_EQ(7U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0xfffe1ffU, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadSLEB128) {
+ memory_.SetMemory(0, std::vector<uint8_t>{0x06, 0x40, 0x82, 0x34, 0x89, 0x64, 0xf9, 0xc3, 0x8f,
+ 0x2f, 0xbf, 0xc3, 0xf7, 0x5f});
+
+ int64_t value;
+ ASSERT_TRUE(dwarf_mem_->ReadSLEB128(&value));
+ ASSERT_EQ(1U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(6U, value);
+
+ ASSERT_TRUE(dwarf_mem_->ReadSLEB128(&value));
+ ASSERT_EQ(2U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0xffffffffffffffc0ULL, static_cast<uint64_t>(value));
+
+ ASSERT_TRUE(dwarf_mem_->ReadSLEB128(&value));
+ ASSERT_EQ(4U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0x1a02U, value);
+
+ ASSERT_TRUE(dwarf_mem_->ReadSLEB128(&value));
+ ASSERT_EQ(6U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0xfffffffffffff209ULL, static_cast<uint64_t>(value));
+
+ ASSERT_TRUE(dwarf_mem_->ReadSLEB128(&value));
+ ASSERT_EQ(10U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0x5e3e1f9U, value);
+
+ ASSERT_TRUE(dwarf_mem_->ReadSLEB128(&value));
+ ASSERT_EQ(14U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0xfffffffffbfde1bfULL, static_cast<uint64_t>(value));
+}
+
+template <typename AddressType>
+void DwarfMemoryTest::GetEncodedSizeTest(uint8_t value, size_t expected) {
+ for (size_t i = 0; i < 16; i++) {
+ uint8_t encoding = (i << 4) | value;
+ ASSERT_EQ(expected, dwarf_mem_->GetEncodedSize<AddressType>(encoding))
+ << "encoding 0x" << std::hex << static_cast<uint32_t>(encoding) << " test value 0x"
+ << static_cast<size_t>(value);
+ }
+}
+
+TEST_F(DwarfMemoryTest, GetEncodedSize_absptr_uint32_t) {
+ GetEncodedSizeTest<uint32_t>(0, sizeof(uint32_t));
+}
+
+TEST_F(DwarfMemoryTest, GetEncodedSize_absptr_uint64_t) {
+ GetEncodedSizeTest<uint64_t>(0, sizeof(uint64_t));
+}
+
+TEST_F(DwarfMemoryTest, GetEncodedSize_data1) {
+ // udata1
+ GetEncodedSizeTest<uint32_t>(0x0d, 1);
+ GetEncodedSizeTest<uint64_t>(0x0d, 1);
+
+ // sdata1
+ GetEncodedSizeTest<uint32_t>(0x0e, 1);
+ GetEncodedSizeTest<uint64_t>(0x0e, 1);
+}
+
+TEST_F(DwarfMemoryTest, GetEncodedSize_data2) {
+ // udata2
+ GetEncodedSizeTest<uint32_t>(0x02, 2);
+ GetEncodedSizeTest<uint64_t>(0x02, 2);
+
+ // sdata2
+ GetEncodedSizeTest<uint32_t>(0x0a, 2);
+ GetEncodedSizeTest<uint64_t>(0x0a, 2);
+}
+
+TEST_F(DwarfMemoryTest, GetEncodedSize_data4) {
+ // udata4
+ GetEncodedSizeTest<uint32_t>(0x03, 4);
+ GetEncodedSizeTest<uint64_t>(0x03, 4);
+
+ // sdata4
+ GetEncodedSizeTest<uint32_t>(0x0b, 4);
+ GetEncodedSizeTest<uint64_t>(0x0b, 4);
+}
+
+TEST_F(DwarfMemoryTest, GetEncodedSize_data8) {
+ // udata8
+ GetEncodedSizeTest<uint32_t>(0x04, 8);
+ GetEncodedSizeTest<uint64_t>(0x04, 8);
+
+ // sdata8
+ GetEncodedSizeTest<uint32_t>(0x0c, 8);
+ GetEncodedSizeTest<uint64_t>(0x0c, 8);
+}
+
+TEST_F(DwarfMemoryTest, GetEncodedSize_unknown) {
+ GetEncodedSizeTest<uint32_t>(0x01, 0);
+ GetEncodedSizeTest<uint64_t>(0x01, 0);
+
+ GetEncodedSizeTest<uint32_t>(0x09, 0);
+ GetEncodedSizeTest<uint64_t>(0x09, 0);
+
+ GetEncodedSizeTest<uint32_t>(0x0f, 0);
+ GetEncodedSizeTest<uint64_t>(0x0f, 0);
+}
+
+template <typename AddressType>
+void DwarfMemoryTest::ReadEncodedValue_omit() {
+ uint64_t value = 123;
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0xff, &value));
+ ASSERT_EQ(0U, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_omit_uint32_t) { ReadEncodedValue_omit<uint32_t>(); }
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_omit_uint64_t) { ReadEncodedValue_omit<uint64_t>(); }
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_absptr_uint32_t) {
+ uint64_t value = 100;
+ ASSERT_FALSE(dwarf_mem_->ReadEncodedValue<uint32_t>(0x00, &value));
+
+ memory_.SetData32(0, 0x12345678);
+
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<uint32_t>(0x00, &value));
+ ASSERT_EQ(4U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0x12345678U, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_absptr_uint64_t) {
+ uint64_t value = 100;
+ ASSERT_FALSE(dwarf_mem_->ReadEncodedValue<uint64_t>(0x00, &value));
+
+ memory_.SetData64(0, 0x12345678f1f2f3f4ULL);
+
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<uint64_t>(0x00, &value));
+ ASSERT_EQ(8U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0x12345678f1f2f3f4ULL, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_aligned_uint32_t) {
+ uint64_t value = 100;
+ dwarf_mem_->set_cur_offset(1);
+ ASSERT_FALSE(dwarf_mem_->ReadEncodedValue<uint32_t>(0x50, &value));
+
+ memory_.SetData32(4, 0x12345678);
+
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<uint32_t>(0x50, &value));
+ ASSERT_EQ(8U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0x12345678U, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_aligned_uint64_t) {
+ uint64_t value = 100;
+ dwarf_mem_->set_cur_offset(1);
+ ASSERT_FALSE(dwarf_mem_->ReadEncodedValue<uint64_t>(0x50, &value));
+
+ memory_.SetData64(8, 0x12345678f1f2f3f4ULL);
+
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<uint64_t>(0x50, &value));
+ ASSERT_EQ(16U, dwarf_mem_->cur_offset());
+ ASSERT_EQ(0x12345678f1f2f3f4ULL, value);
+}
+
+template <typename AddressType>
+void DwarfMemoryTest::ReadEncodedValue_leb128() {
+ memory_.SetMemory(0, std::vector<uint8_t>{0x80, 0x42});
+
+ uint64_t value = 100;
+ // uleb128
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x01, &value));
+ ASSERT_EQ(0x2100U, value);
+
+ dwarf_mem_->set_cur_offset(0);
+ // sleb128
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x09, &value));
+ ASSERT_EQ(0xffffffffffffe100ULL, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_leb128_uint32_t) { ReadEncodedValue_leb128<uint32_t>(); }
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_leb128_uint64_t) { ReadEncodedValue_leb128<uint64_t>(); }
+
+template <typename AddressType>
+void DwarfMemoryTest::ReadEncodedValue_data1() {
+ memory_.SetData8(0, 0xe0);
+
+ uint64_t value = 0;
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x0d, &value));
+ ASSERT_EQ(0xe0U, value);
+
+ dwarf_mem_->set_cur_offset(0);
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x0e, &value));
+ ASSERT_EQ(0xffffffffffffffe0ULL, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_data1_uint32_t) { ReadEncodedValue_data1<uint32_t>(); }
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_data1_uint64_t) { ReadEncodedValue_data1<uint64_t>(); }
+
+template <typename AddressType>
+void DwarfMemoryTest::ReadEncodedValue_data2() {
+ memory_.SetData16(0, 0xe000);
+
+ uint64_t value = 0;
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x02, &value));
+ ASSERT_EQ(0xe000U, value);
+
+ dwarf_mem_->set_cur_offset(0);
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x0a, &value));
+ ASSERT_EQ(0xffffffffffffe000ULL, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_data2_uint32_t) { ReadEncodedValue_data2<uint32_t>(); }
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_data2_uint64_t) { ReadEncodedValue_data2<uint64_t>(); }
+
+template <typename AddressType>
+void DwarfMemoryTest::ReadEncodedValue_data4() {
+ memory_.SetData32(0, 0xe0000000);
+
+ uint64_t value = 0;
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x03, &value));
+ ASSERT_EQ(0xe0000000U, value);
+
+ dwarf_mem_->set_cur_offset(0);
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x0b, &value));
+ ASSERT_EQ(0xffffffffe0000000ULL, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_data4_uint32_t) { ReadEncodedValue_data4<uint32_t>(); }
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_data4_uint64_t) { ReadEncodedValue_data4<uint64_t>(); }
+
+template <typename AddressType>
+void DwarfMemoryTest::ReadEncodedValue_data8() {
+ memory_.SetData64(0, 0xe000000000000000ULL);
+
+ uint64_t value = 0;
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x04, &value));
+ ASSERT_EQ(0xe000000000000000ULL, value);
+
+ dwarf_mem_->set_cur_offset(0);
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x0c, &value));
+ ASSERT_EQ(0xe000000000000000ULL, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_data8_uint32_t) { ReadEncodedValue_data8<uint32_t>(); }
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_data8_uint64_t) { ReadEncodedValue_data8<uint64_t>(); }
+
+template <typename AddressType>
+void DwarfMemoryTest::ReadEncodedValue_non_zero_adjust() {
+ memory_.SetData64(0, 0xe000000000000000ULL);
+
+ uint64_t value = 0;
+ dwarf_mem_->set_pc_offset(0x2000);
+ ASSERT_TRUE(dwarf_mem_->ReadEncodedValue<AddressType>(0x14, &value));
+ ASSERT_EQ(0xe000000000002000ULL, value);
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_non_zero_adjust_uint32_t) {
+ ReadEncodedValue_non_zero_adjust<uint32_t>();
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_non_zero_adjust_uint64_t) {
+ ReadEncodedValue_non_zero_adjust<uint64_t>();
+}
+
+template <typename AddressType>
+void DwarfMemoryTest::ReadEncodedValue_overflow() {
+ memory_.SetData64(0, 0);
+
+ uint64_t value = 0;
+ dwarf_mem_->set_cur_offset(UINT64_MAX);
+ ASSERT_FALSE(dwarf_mem_->ReadEncodedValue<AddressType>(0x50, &value));
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_overflow_uint32_t) {
+ ReadEncodedValue_overflow<uint32_t>();
+}
+
+TEST_F(DwarfMemoryTest, ReadEncodedValue_overflow_uint64_t) {
+ ReadEncodedValue_overflow<uint64_t>();
+}
+
+TEST_F(DwarfMemoryTest, AdjustEncodedValue_absptr) {
+ uint64_t value = 0x1234;
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x00, &value));
+ ASSERT_EQ(0x1234U, value);
+}
+
+TEST_F(DwarfMemoryTest, AdjustEncodedValue_pcrel) {
+ uint64_t value = 0x1234;
+ ASSERT_FALSE(dwarf_mem_->AdjustEncodedValue(0x10, &value));
+
+ dwarf_mem_->set_pc_offset(0x2000);
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x10, &value));
+ ASSERT_EQ(0x3234U, value);
+
+ dwarf_mem_->set_pc_offset(static_cast<uint64_t>(-4));
+ value = 0x1234;
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x10, &value));
+ ASSERT_EQ(0x1230U, value);
+}
+
+TEST_F(DwarfMemoryTest, AdjustEncodedValue_textrel) {
+ uint64_t value = 0x8234;
+ ASSERT_FALSE(dwarf_mem_->AdjustEncodedValue(0x20, &value));
+
+ dwarf_mem_->set_text_offset(0x1000);
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x20, &value));
+ ASSERT_EQ(0x9234U, value);
+
+ dwarf_mem_->set_text_offset(static_cast<uint64_t>(-16));
+ value = 0x8234;
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x20, &value));
+ ASSERT_EQ(0x8224U, value);
+}
+
+TEST_F(DwarfMemoryTest, AdjustEncodedValue_datarel) {
+ uint64_t value = 0xb234;
+ ASSERT_FALSE(dwarf_mem_->AdjustEncodedValue(0x30, &value));
+
+ dwarf_mem_->set_data_offset(0x1200);
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x30, &value));
+ ASSERT_EQ(0xc434U, value);
+
+ dwarf_mem_->set_data_offset(static_cast<uint64_t>(-256));
+ value = 0xb234;
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x30, &value));
+ ASSERT_EQ(0xb134U, value);
+}
+
+TEST_F(DwarfMemoryTest, AdjustEncodedValue_funcrel) {
+ uint64_t value = 0x15234;
+ ASSERT_FALSE(dwarf_mem_->AdjustEncodedValue(0x40, &value));
+
+ dwarf_mem_->set_func_offset(0x60000);
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x40, &value));
+ ASSERT_EQ(0x75234U, value);
+
+ dwarf_mem_->set_func_offset(static_cast<uint64_t>(-4096));
+ value = 0x15234;
+ ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x40, &value));
+ ASSERT_EQ(0x14234U, value);
+}