Merge "Switch to memcpy for accessing misaligned data."
diff --git a/adb/adb_trace.h b/adb/adb_trace.h
index 5206a99..aaffa29 100644
--- a/adb/adb_trace.h
+++ b/adb/adb_trace.h
@@ -58,4 +58,8 @@
void adb_trace_init(char**);
void adb_trace_enable(AdbTrace trace_tag);
+#define ATRACE_TAG ATRACE_TAG_ADB
+#include <cutils/trace.h>
+#include <utils/Trace.h>
+
#endif /* __ADB_TRACE_H */
diff --git a/adb/client/main.cpp b/adb/client/main.cpp
index 4ec0fc2..d583516 100644
--- a/adb/client/main.cpp
+++ b/adb/client/main.cpp
@@ -23,6 +23,8 @@
#include <stdlib.h>
#include <unistd.h>
+#include <thread>
+
#include <android-base/errors.h>
#include <android-base/file.h>
#include <android-base/logging.h>
@@ -33,6 +35,7 @@
#include "adb_listeners.h"
#include "adb_utils.h"
#include "commandline.h"
+#include "sysdeps/chrono.h"
#include "transport.h"
static std::string GetLogFilePath() {
@@ -113,8 +116,18 @@
local_init(DEFAULT_ADB_LOCAL_TRANSPORT_PORT);
std::string error;
- if (install_listener(socket_spec, "*smartsocket*", nullptr, 0, nullptr, &error)) {
- fatal("could not install *smartsocket* listener: %s", error.c_str());
+
+ auto start = std::chrono::steady_clock::now();
+
+ // If we told a previous adb server to quit because of version mismatch, we can get to this
+ // point before it's finished exiting. Retry for a while to give it some time.
+ while (install_listener(socket_spec, "*smartsocket*", nullptr, 0, nullptr, &error) !=
+ INSTALL_STATUS_OK) {
+ if (std::chrono::steady_clock::now() - start > 0.5s) {
+ fatal("could not install *smartsocket* listener: %s", error.c_str());
+ }
+
+ std::this_thread::sleep_for(100ms);
}
if (is_daemon) {
diff --git a/adb/file_sync_service.cpp b/adb/file_sync_service.cpp
index 43c877e..e667bf8 100644
--- a/adb/file_sync_service.cpp
+++ b/adb/file_sync_service.cpp
@@ -39,10 +39,13 @@
#include "adb.h"
#include "adb_io.h"
+#include "adb_trace.h"
#include "adb_utils.h"
#include "security_log_tags.h"
#include "sysdeps/errno.h"
+using android::base::StringPrintf;
+
static bool should_use_fs_config(const std::string& path) {
// TODO: use fs_config to configure permissions on /data.
return android::base::StartsWith(path, "/system/") ||
@@ -152,7 +155,7 @@
if (!d) goto done;
while ((de = readdir(d.get()))) {
- std::string filename(android::base::StringPrintf("%s/%s", path, de->d_name));
+ std::string filename(StringPrintf("%s/%s", path, de->d_name));
struct stat st;
if (lstat(filename.c_str(), &st) == 0) {
@@ -191,7 +194,7 @@
}
static bool SendSyncFailErrno(int fd, const std::string& reason) {
- return SendSyncFail(fd, android::base::StringPrintf("%s: %s", reason.c_str(), strerror(errno)));
+ return SendSyncFail(fd, StringPrintf("%s: %s", reason.c_str(), strerror(errno)));
}
static bool handle_send_file(int s, const char* path, uid_t uid, gid_t gid, uint64_t capabilities,
@@ -433,9 +436,31 @@
return WriteFdExactly(s, &msg.data, sizeof(msg.data));
}
+static const char* sync_id_to_name(uint32_t id) {
+ switch (id) {
+ case ID_LSTAT_V1:
+ return "lstat_v1";
+ case ID_LSTAT_V2:
+ return "lstat_v2";
+ case ID_STAT_V2:
+ return "stat_v2";
+ case ID_LIST:
+ return "list";
+ case ID_SEND:
+ return "send";
+ case ID_RECV:
+ return "recv";
+ case ID_QUIT:
+ return "quit";
+ default:
+ return "???";
+ }
+}
+
static bool handle_sync_command(int fd, std::vector<char>& buffer) {
D("sync: waiting for request");
+ ATRACE_CALL();
SyncRequest request;
if (!ReadFdExactly(fd, &request, sizeof(request))) {
SendSyncFail(fd, "command read failure");
@@ -453,9 +478,11 @@
}
name[path_length] = 0;
- const char* id = reinterpret_cast<const char*>(&request.id);
- D("sync: '%.4s' '%s'", id, name);
+ std::string id_name = sync_id_to_name(request.id);
+ std::string trace_name = StringPrintf("%s(%s)", id_name.c_str(), name);
+ ATRACE_NAME(trace_name.c_str());
+ D("sync: %s('%s')", id_name.c_str(), name);
switch (request.id) {
case ID_LSTAT_V1:
if (!do_lstat_v1(fd, name)) return false;
@@ -476,8 +503,7 @@
case ID_QUIT:
return false;
default:
- SendSyncFail(
- fd, android::base::StringPrintf("unknown command '%.4s' (%08x)", id, request.id));
+ SendSyncFail(fd, StringPrintf("unknown command %08x", request.id));
return false;
}
diff --git a/adb/sysdeps_win32_test.cpp b/adb/sysdeps_win32_test.cpp
old mode 100755
new mode 100644
diff --git a/adb/trace.sh b/adb/trace.sh
new file mode 100755
index 0000000..49e5026
--- /dev/null
+++ b/adb/trace.sh
@@ -0,0 +1,17 @@
+set -e
+
+if ! [ -e $ANDROID_BUILD_TOP/external/chromium-trace/systrace.py ]; then
+ echo "error: can't find systrace.py at \$ANDROID_BUILD_TOP/external/chromium-trace/systrace.py"
+ exit 1
+fi
+
+adb shell "sleep 1; atrace -b 65536 --async_start adb sched power freq idle disk mmc load"
+adb shell killall adbd
+adb wait-for-device
+echo "press enter to finish..."
+read
+TRACE_TEMP=`mktemp /tmp/trace.XXXXXX`
+echo Saving trace to ${TRACE_TEMP}, html file to ${TRACE_TEMP}.html
+adb shell atrace --async_stop -z > ${TRACE_TEMP}
+$ANDROID_BUILD_TOP/external/chromium-trace/systrace.py --from-file=${TRACE_TEMP} -o ${TRACE_TEMP}.html
+chrome ${TRACE_TEMP}.html
diff --git a/adb/transport.cpp b/adb/transport.cpp
index 7b82b19..60f3b5c 100644
--- a/adb/transport.cpp
+++ b/adb/transport.cpp
@@ -37,6 +37,7 @@
#include "adb.h"
#include "adb_auth.h"
+#include "adb_trace.h"
#include "adb_utils.h"
#include "diagnose_usb.h"
@@ -52,16 +53,15 @@
const char* const kFeatureStat2 = "stat_v2";
static std::string dump_packet(const char* name, const char* func, apacket* p) {
- unsigned command = p->msg.command;
- int len = p->msg.data_length;
- char cmd[9];
- char arg0[12], arg1[12];
- int n;
+ unsigned command = p->msg.command;
+ int len = p->msg.data_length;
+ char cmd[9];
+ char arg0[12], arg1[12];
+ int n;
for (n = 0; n < 4; n++) {
- int b = (command >> (n*8)) & 255;
- if (b < 32 || b >= 127)
- break;
+ int b = (command >> (n * 8)) & 255;
+ if (b < 32 || b >= 127) break;
cmd[n] = (char)b;
}
if (n == 4) {
@@ -82,25 +82,24 @@
else
snprintf(arg1, sizeof arg1, "0x%x", p->msg.arg1);
- std::string result = android::base::StringPrintf("%s: %s: [%s] arg0=%s arg1=%s (len=%d) ",
- name, func, cmd, arg0, arg1, len);
+ std::string result = android::base::StringPrintf("%s: %s: [%s] arg0=%s arg1=%s (len=%d) ", name,
+ func, cmd, arg0, arg1, len);
result += dump_hex(p->data, len);
return result;
}
-static int
-read_packet(int fd, const char* name, apacket** ppacket)
-{
+static int read_packet(int fd, const char* name, apacket** ppacket) {
+ ATRACE_NAME("read_packet");
char buff[8];
if (!name) {
snprintf(buff, sizeof buff, "fd=%d", fd);
name = buff;
}
- char* p = reinterpret_cast<char*>(ppacket); /* really read a packet address */
+ char* p = reinterpret_cast<char*>(ppacket); /* really read a packet address */
int len = sizeof(apacket*);
- while(len > 0) {
+ while (len > 0) {
int r = adb_read(fd, p, len);
- if(r > 0) {
+ if (r > 0) {
len -= r;
p += r;
} else {
@@ -113,20 +112,19 @@
return 0;
}
-static int
-write_packet(int fd, const char* name, apacket** ppacket)
-{
+static int write_packet(int fd, const char* name, apacket** ppacket) {
+ ATRACE_NAME("write_packet");
char buff[8];
if (!name) {
snprintf(buff, sizeof buff, "fd=%d", fd);
name = buff;
}
VLOG(TRANSPORT) << dump_packet(name, "to remote", *ppacket);
- char* p = reinterpret_cast<char*>(ppacket); /* we really write the packet address */
+ char* p = reinterpret_cast<char*>(ppacket); /* we really write the packet address */
int len = sizeof(apacket*);
- while(len > 0) {
+ while (len > 0) {
int r = adb_write(fd, p, len);
- if(r > 0) {
+ if (r > 0) {
len -= r;
p += r;
} else {
@@ -137,16 +135,15 @@
return 0;
}
-static void transport_socket_events(int fd, unsigned events, void *_t)
-{
- atransport *t = reinterpret_cast<atransport*>(_t);
+static void transport_socket_events(int fd, unsigned events, void* _t) {
+ atransport* t = reinterpret_cast<atransport*>(_t);
D("transport_socket_events(fd=%d, events=%04x,...)", fd, events);
- if(events & FDE_READ){
- apacket *p = 0;
- if(read_packet(fd, t->serial, &p)){
+ if (events & FDE_READ) {
+ apacket* p = 0;
+ if (read_packet(fd, t->serial, &p)) {
D("%s: failed to read packet from transport socket on fd %d", t->serial, fd);
} else {
- handle_packet(p, (atransport *) _t);
+ handle_packet(p, (atransport*)_t);
}
}
}
@@ -180,40 +177,43 @@
// read_transport thread reads data from a transport (representing a usb/tcp connection),
// and makes the main thread call handle_packet().
static void read_transport_thread(void* _t) {
- atransport *t = reinterpret_cast<atransport*>(_t);
- apacket *p;
+ atransport* t = reinterpret_cast<atransport*>(_t);
+ apacket* p;
- adb_thread_setname(android::base::StringPrintf("<-%s",
- (t->serial != nullptr ? t->serial : "transport")));
- D("%s: starting read_transport thread on fd %d, SYNC online (%d)",
- t->serial, t->fd, t->sync_token + 1);
+ adb_thread_setname(
+ android::base::StringPrintf("<-%s", (t->serial != nullptr ? t->serial : "transport")));
+ D("%s: starting read_transport thread on fd %d, SYNC online (%d)", t->serial, t->fd,
+ t->sync_token + 1);
p = get_apacket();
p->msg.command = A_SYNC;
p->msg.arg0 = 1;
p->msg.arg1 = ++(t->sync_token);
p->msg.magic = A_SYNC ^ 0xffffffff;
- if(write_packet(t->fd, t->serial, &p)) {
+ if (write_packet(t->fd, t->serial, &p)) {
put_apacket(p);
D("%s: failed to write SYNC packet", t->serial);
goto oops;
}
D("%s: data pump started", t->serial);
- for(;;) {
+ for (;;) {
+ ATRACE_NAME("read_transport loop");
p = get_apacket();
- if(t->read_from_remote(p, t) == 0){
- D("%s: received remote packet, sending to transport",
- t->serial);
- if(write_packet(t->fd, t->serial, &p)){
+ {
+ ATRACE_NAME("read_transport read_remote");
+ if (t->read_from_remote(p, t) != 0) {
+ D("%s: remote read failed for transport", t->serial);
put_apacket(p);
- D("%s: failed to write apacket to transport", t->serial);
- goto oops;
+ break;
}
- } else {
- D("%s: remote read failed for transport", t->serial);
+ }
+
+ D("%s: received remote packet, sending to transport", t->serial);
+ if (write_packet(t->fd, t->serial, &p)) {
put_apacket(p);
- break;
+ D("%s: failed to write apacket to transport", t->serial);
+ goto oops;
}
}
@@ -223,7 +223,7 @@
p->msg.arg0 = 0;
p->msg.arg1 = 0;
p->msg.magic = A_SYNC ^ 0xffffffff;
- if(write_packet(t->fd, t->serial, &p)) {
+ if (write_packet(t->fd, t->serial, &p)) {
put_apacket(p);
D("%s: failed to write SYNC apacket to transport", t->serial);
}
@@ -237,38 +237,38 @@
// write_transport thread gets packets sent by the main thread (through send_packet()),
// and writes to a transport (representing a usb/tcp connection).
static void write_transport_thread(void* _t) {
- atransport *t = reinterpret_cast<atransport*>(_t);
- apacket *p;
+ atransport* t = reinterpret_cast<atransport*>(_t);
+ apacket* p;
int active = 0;
- adb_thread_setname(android::base::StringPrintf("->%s",
- (t->serial != nullptr ? t->serial : "transport")));
- D("%s: starting write_transport thread, reading from fd %d",
- t->serial, t->fd);
+ adb_thread_setname(
+ android::base::StringPrintf("->%s", (t->serial != nullptr ? t->serial : "transport")));
+ D("%s: starting write_transport thread, reading from fd %d", t->serial, t->fd);
- for(;;){
- if(read_packet(t->fd, t->serial, &p)) {
- D("%s: failed to read apacket from transport on fd %d",
- t->serial, t->fd );
+ for (;;) {
+ ATRACE_NAME("write_transport loop");
+ if (read_packet(t->fd, t->serial, &p)) {
+ D("%s: failed to read apacket from transport on fd %d", t->serial, t->fd);
break;
}
- if(p->msg.command == A_SYNC){
- if(p->msg.arg0 == 0) {
+
+ if (p->msg.command == A_SYNC) {
+ if (p->msg.arg0 == 0) {
D("%s: transport SYNC offline", t->serial);
put_apacket(p);
break;
} else {
- if(p->msg.arg1 == t->sync_token) {
+ if (p->msg.arg1 == t->sync_token) {
D("%s: transport SYNC online", t->serial);
active = 1;
} else {
- D("%s: transport ignoring SYNC %d != %d",
- t->serial, p->msg.arg1, t->sync_token);
+ D("%s: transport ignoring SYNC %d != %d", t->serial, p->msg.arg1, t->sync_token);
}
}
} else {
- if(active) {
+ if (active) {
D("%s: transport got packet, sending to remote", t->serial);
+ ATRACE_NAME("write_transport write_remote");
t->write_to_remote(p, t);
} else {
D("%s: transport ignoring packet while offline", t->serial);
@@ -296,7 +296,6 @@
static int transport_registration_recv = -1;
static fdevent transport_registration_fde;
-
#if ADB_HOST
/* this adds support required by the 'track-devices' service.
@@ -305,19 +304,17 @@
* live TCP connection
*/
struct device_tracker {
- asocket socket;
- int update_needed;
- device_tracker* next;
+ asocket socket;
+ int update_needed;
+ device_tracker* next;
};
/* linked list of all device trackers */
-static device_tracker* device_tracker_list;
+static device_tracker* device_tracker_list;
-static void
-device_tracker_remove( device_tracker* tracker )
-{
- device_tracker** pnode = &device_tracker_list;
- device_tracker* node = *pnode;
+static void device_tracker_remove(device_tracker* tracker) {
+ device_tracker** pnode = &device_tracker_list;
+ device_tracker* node = *pnode;
std::lock_guard<std::mutex> lock(transport_lock);
while (node) {
@@ -326,17 +323,15 @@
break;
}
pnode = &node->next;
- node = *pnode;
+ node = *pnode;
}
}
-static void
-device_tracker_close( asocket* socket )
-{
- device_tracker* tracker = (device_tracker*) socket;
- asocket* peer = socket->peer;
+static void device_tracker_close(asocket* socket) {
+ device_tracker* tracker = (device_tracker*)socket;
+ asocket* peer = socket->peer;
- D( "device tracker %p removed", tracker);
+ D("device tracker %p removed", tracker);
if (peer) {
peer->peer = NULL;
peer->close(peer);
@@ -345,9 +340,7 @@
free(tracker);
}
-static int
-device_tracker_enqueue( asocket* socket, apacket* p )
-{
+static int device_tracker_enqueue(asocket* socket, apacket* p) {
/* you can't read from a device tracker, close immediately */
put_apacket(p);
device_tracker_close(socket);
@@ -377,26 +370,23 @@
}
}
-asocket*
-create_device_tracker(void)
-{
+asocket* create_device_tracker(void) {
device_tracker* tracker = reinterpret_cast<device_tracker*>(calloc(1, sizeof(*tracker)));
if (tracker == nullptr) fatal("cannot allocate device tracker");
- D( "device tracker %p created", tracker);
+ D("device tracker %p created", tracker);
tracker->socket.enqueue = device_tracker_enqueue;
- tracker->socket.ready = device_tracker_ready;
- tracker->socket.close = device_tracker_close;
- tracker->update_needed = 1;
+ tracker->socket.ready = device_tracker_ready;
+ tracker->socket.close = device_tracker_close;
+ tracker->update_needed = 1;
- tracker->next = device_tracker_list;
+ tracker->next = device_tracker_list;
device_tracker_list = tracker;
return &tracker->socket;
}
-
// Call this function each time the transport list has changed.
void update_transports() {
std::string transports = list_transports(false);
@@ -416,26 +406,23 @@
// Nothing to do on the device side.
}
-#endif // ADB_HOST
+#endif // ADB_HOST
-struct tmsg
-{
- atransport *transport;
- int action;
+struct tmsg {
+ atransport* transport;
+ int action;
};
-static int
-transport_read_action(int fd, struct tmsg* m)
-{
- char *p = (char*)m;
- int len = sizeof(*m);
- int r;
+static int transport_read_action(int fd, struct tmsg* m) {
+ char* p = (char*)m;
+ int len = sizeof(*m);
+ int r;
- while(len > 0) {
+ while (len > 0) {
r = adb_read(fd, p, len);
- if(r > 0) {
+ if (r > 0) {
len -= r;
- p += r;
+ p += r;
} else {
D("transport_read_action: on fd %d: %s", fd, strerror(errno));
return -1;
@@ -444,18 +431,16 @@
return 0;
}
-static int
-transport_write_action(int fd, struct tmsg* m)
-{
- char *p = (char*)m;
- int len = sizeof(*m);
- int r;
+static int transport_write_action(int fd, struct tmsg* m) {
+ char* p = (char*)m;
+ int len = sizeof(*m);
+ int r;
- while(len > 0) {
+ while (len > 0) {
r = adb_write(fd, p, len);
- if(r > 0) {
+ if (r > 0) {
len -= r;
- p += r;
+ p += r;
} else {
D("transport_write_action: on fd %d: %s", fd, strerror(errno));
return -1;
@@ -464,17 +449,16 @@
return 0;
}
-static void transport_registration_func(int _fd, unsigned ev, void *data)
-{
+static void transport_registration_func(int _fd, unsigned ev, void* data) {
tmsg m;
int s[2];
- atransport *t;
+ atransport* t;
- if(!(ev & FDE_READ)) {
+ if (!(ev & FDE_READ)) {
return;
}
- if(transport_read_action(_fd, &m)) {
+ if (transport_read_action(_fd, &m)) {
fatal_errno("cannot read transport registration socket");
}
@@ -483,9 +467,9 @@
if (m.action == 0) {
D("transport: %s removing and free'ing %d", t->serial, t->transport_socket);
- /* IMPORTANT: the remove closes one half of the
- ** socket pair. The close closes the other half.
- */
+ /* IMPORTANT: the remove closes one half of the
+ ** socket pair. The close closes the other half.
+ */
fdevent_remove(&(t->transport_fde));
adb_close(t->fd);
@@ -494,16 +478,11 @@
transport_list.remove(t);
}
- if (t->product)
- free(t->product);
- if (t->serial)
- free(t->serial);
- if (t->model)
- free(t->model);
- if (t->device)
- free(t->device);
- if (t->devpath)
- free(t->devpath);
+ if (t->product) free(t->product);
+ if (t->serial) free(t->serial);
+ if (t->model) free(t->model);
+ if (t->device) free(t->device);
+ if (t->devpath) free(t->devpath);
delete t;
@@ -525,10 +504,7 @@
t->transport_socket = s[0];
t->fd = s[1];
- fdevent_install(&(t->transport_fde),
- t->transport_socket,
- transport_socket_events,
- t);
+ fdevent_install(&(t->transport_fde), t->transport_socket, transport_socket_events, t);
fdevent_set(&(t->transport_fde), FDE_READ);
@@ -550,11 +526,10 @@
update_transports();
}
-void init_transport_registration(void)
-{
+void init_transport_registration(void) {
int s[2];
- if(adb_socketpair(s)){
+ if (adb_socketpair(s)) {
fatal_errno("cannot open transport registration socketpair");
}
D("socketpair: (%d,%d)", s[0], s[1]);
@@ -562,38 +537,33 @@
transport_registration_send = s[0];
transport_registration_recv = s[1];
- fdevent_install(&transport_registration_fde,
- transport_registration_recv,
- transport_registration_func,
- 0);
+ fdevent_install(&transport_registration_fde, transport_registration_recv,
+ transport_registration_func, 0);
fdevent_set(&transport_registration_fde, FDE_READ);
}
/* the fdevent select pump is single threaded */
-static void register_transport(atransport *transport)
-{
+static void register_transport(atransport* transport) {
tmsg m;
m.transport = transport;
m.action = 1;
D("transport: %s registered", transport->serial);
- if(transport_write_action(transport_registration_send, &m)) {
+ if (transport_write_action(transport_registration_send, &m)) {
fatal_errno("cannot write transport registration socket\n");
}
}
-static void remove_transport(atransport *transport)
-{
+static void remove_transport(atransport* transport) {
tmsg m;
m.transport = transport;
m.action = 0;
D("transport: %s removed", transport->serial);
- if(transport_write_action(transport_registration_send, &m)) {
+ if (transport_write_action(transport_registration_send, &m)) {
fatal_errno("cannot write transport registration socket\n");
}
}
-
static void transport_unref(atransport* t) {
CHECK(t != nullptr);
@@ -609,37 +579,31 @@
}
}
-static int qual_match(const char *to_test,
- const char *prefix, const char *qual, bool sanitize_qual)
-{
- if (!to_test || !*to_test)
- /* Return true if both the qual and to_test are null strings. */
+static int qual_match(const char* to_test, const char* prefix, const char* qual,
+ bool sanitize_qual) {
+ if (!to_test || !*to_test) /* Return true if both the qual and to_test are null strings. */
return !qual || !*qual;
- if (!qual)
- return 0;
+ if (!qual) return 0;
if (prefix) {
while (*prefix) {
- if (*prefix++ != *to_test++)
- return 0;
+ if (*prefix++ != *to_test++) return 0;
}
}
while (*qual) {
char ch = *qual++;
- if (sanitize_qual && !isalnum(ch))
- ch = '_';
- if (ch != *to_test++)
- return 0;
+ if (sanitize_qual && !isalnum(ch)) ch = '_';
+ if (ch != *to_test++) return 0;
}
/* Everything matched so far. Return true if *to_test is a NUL. */
return !*to_test;
}
-atransport* acquire_one_transport(TransportType type, const char* serial,
- bool* is_ambiguous, std::string* error_out) {
+atransport* acquire_one_transport(TransportType type, const char* serial, bool* is_ambiguous,
+ std::string* error_out) {
atransport* result = nullptr;
if (serial) {
@@ -737,15 +701,24 @@
const std::string atransport::connection_state_name() const {
switch (connection_state) {
- case kCsOffline: return "offline";
- case kCsBootloader: return "bootloader";
- case kCsDevice: return "device";
- case kCsHost: return "host";
- case kCsRecovery: return "recovery";
- case kCsNoPerm: return UsbNoPermissionsShortHelpText();
- case kCsSideload: return "sideload";
- case kCsUnauthorized: return "unauthorized";
- default: return "unknown";
+ case kCsOffline:
+ return "offline";
+ case kCsBootloader:
+ return "bootloader";
+ case kCsDevice:
+ return "device";
+ case kCsHost:
+ return "host";
+ case kCsRecovery:
+ return "recovery";
+ case kCsNoPerm:
+ return UsbNoPermissionsShortHelpText();
+ case kCsSideload:
+ return "sideload";
+ case kCsUnauthorized:
+ return "unauthorized";
+ default:
+ return "unknown";
}
}
@@ -771,9 +744,7 @@
const FeatureSet& supported_features() {
// Local static allocation to avoid global non-POD variables.
static const FeatureSet* features = new FeatureSet{
- kFeatureShell2,
- kFeatureCmd,
- kFeatureStat2,
+ kFeatureShell2, kFeatureCmd, kFeatureStat2,
// Increment ADB_SERVER_VERSION whenever the feature list changes to
// make sure that the adb client and server features stay in sync
// (http://b/24370690).
@@ -791,14 +762,12 @@
return FeatureSet();
}
- auto names = android::base::Split(features_string,
- {kFeatureStringDelimiter});
+ auto names = android::base::Split(features_string, {kFeatureStringDelimiter});
return FeatureSet(names.begin(), names.end());
}
bool CanUseFeature(const FeatureSet& feature_set, const std::string& feature) {
- return feature_set.count(feature) > 0 &&
- supported_features().count(feature) > 0;
+ return feature_set.count(feature) > 0 && supported_features().count(feature) > 0;
}
bool atransport::has_feature(const std::string& feature) const {
@@ -834,21 +803,20 @@
// For fastboot compatibility, ignore protocol prefixes.
if (android::base::StartsWith(target, "tcp:") ||
- android::base::StartsWith(target, "udp:")) {
+ android::base::StartsWith(target, "udp:")) {
local_target_ptr += 4;
}
// Parse our |serial| and the given |target| to check if the hostnames and ports match.
std::string serial_host, error;
int serial_port = -1;
- if (android::base::ParseNetAddress(serial, &serial_host, &serial_port, nullptr,
- &error)) {
+ if (android::base::ParseNetAddress(serial, &serial_host, &serial_port, nullptr, &error)) {
// |target| may omit the port to default to ours.
std::string target_host;
int target_port = serial_port;
if (android::base::ParseNetAddress(local_target_ptr, &target_host, &target_port,
nullptr, &error) &&
- serial_host == target_host && serial_port == target_port) {
+ serial_host == target_host && serial_port == target_port) {
return true;
}
}
@@ -863,8 +831,8 @@
#if ADB_HOST
-static void append_transport_info(std::string* result, const char* key,
- const char* value, bool sanitize) {
+static void append_transport_info(std::string* result, const char* key, const char* value,
+ bool sanitize) {
if (value == nullptr || *value == '\0') {
return;
}
@@ -877,8 +845,7 @@
}
}
-static void append_transport(const atransport* t, std::string* result,
- bool long_listing) {
+static void append_transport(const atransport* t, std::string* result, bool long_listing) {
const char* serial = t->serial;
if (!serial || !serial[0]) {
serial = "(no serial number)";
@@ -889,8 +856,7 @@
*result += '\t';
*result += t->connection_state_name();
} else {
- android::base::StringAppendF(result, "%-22s %s", serial,
- t->connection_state_name().c_str());
+ android::base::StringAppendF(result, "%-22s %s", serial, t->connection_state_name().c_str());
append_transport_info(result, "", t->devpath, false);
append_transport_info(result, "product:", t->product, false);
@@ -923,9 +889,9 @@
void close_usb_devices() {
close_usb_devices([](const atransport*) { return true; });
}
-#endif // ADB_HOST
+#endif // ADB_HOST
-int register_socket_transport(int s, const char *serial, int port, int local) {
+int register_socket_transport(int s, const char* serial, int port, int local) {
atransport* t = new atransport();
if (!serial) {
@@ -944,7 +910,7 @@
for (const auto& transport : pending_list) {
if (transport->serial && strcmp(serial, transport->serial) == 0) {
VLOG(TRANSPORT) << "socket transport " << transport->serial
- << " is already in pending_list and fails to register";
+ << " is already in pending_list and fails to register";
delete t;
return -1;
}
@@ -953,7 +919,7 @@
for (const auto& transport : transport_list) {
if (transport->serial && strcmp(serial, transport->serial) == 0) {
VLOG(TRANSPORT) << "socket transport " << transport->serial
- << " is already in transport_list and fails to register";
+ << " is already in transport_list and fails to register";
delete t;
return -1;
}
@@ -969,7 +935,7 @@
}
#if ADB_HOST
-atransport *find_transport(const char *serial) {
+atransport* find_transport(const char* serial) {
atransport* result = nullptr;
std::lock_guard<std::mutex> lock(transport_lock);
@@ -998,14 +964,13 @@
#endif
-void register_usb_transport(usb_handle* usb, const char* serial,
- const char* devpath, unsigned writeable) {
+void register_usb_transport(usb_handle* usb, const char* serial, const char* devpath,
+ unsigned writeable) {
atransport* t = new atransport();
- D("transport: %p init'ing for usb_handle %p (sn='%s')", t, usb,
- serial ? serial : "");
+ D("transport: %p init'ing for usb_handle %p (sn='%s')", t, usb, serial ? serial : "");
init_usb_transport(t, usb, (writeable ? kCsOffline : kCsNoPerm));
- if(serial) {
+ if (serial) {
t->serial = strdup(serial);
}
@@ -1022,23 +987,21 @@
}
// This should only be used for transports with connection_state == kCsNoPerm.
-void unregister_usb_transport(usb_handle *usb) {
+void unregister_usb_transport(usb_handle* usb) {
std::lock_guard<std::mutex> lock(transport_lock);
- transport_list.remove_if([usb](atransport* t) {
- return t->usb == usb && t->connection_state == kCsNoPerm;
- });
+ transport_list.remove_if(
+ [usb](atransport* t) { return t->usb == usb && t->connection_state == kCsNoPerm; });
}
-int check_header(apacket *p, atransport *t)
-{
- if(p->msg.magic != (p->msg.command ^ 0xffffffff)) {
+int check_header(apacket* p, atransport* t) {
+ if (p->msg.magic != (p->msg.command ^ 0xffffffff)) {
VLOG(RWX) << "check_header(): invalid magic";
return -1;
}
- if(p->msg.data_length > t->get_max_payload()) {
- VLOG(RWX) << "check_header(): " << p->msg.data_length << " atransport::max_payload = "
- << t->get_max_payload();
+ if (p->msg.data_length > t->get_max_payload()) {
+ VLOG(RWX) << "check_header(): " << p->msg.data_length
+ << " atransport::max_payload = " << t->get_max_payload();
return -1;
}
diff --git a/include/cutils/trace.h b/include/cutils/trace.h
index 0f00417..fcbdc9b 100644
--- a/include/cutils/trace.h
+++ b/include/cutils/trace.h
@@ -71,7 +71,8 @@
#define ATRACE_TAG_SYSTEM_SERVER (1<<19)
#define ATRACE_TAG_DATABASE (1<<20)
#define ATRACE_TAG_NETWORK (1<<21)
-#define ATRACE_TAG_LAST ATRACE_TAG_NETWORK
+#define ATRACE_TAG_ADB (1<<22)
+#define ATRACE_TAG_LAST ATRACE_TAG_ADB
// Reserved for initialization.
#define ATRACE_TAG_NOT_READY (1ULL<<63)
diff --git a/include/private/android_filesystem_config.h b/include/private/android_filesystem_config.h
index c9e1923..3031562 100644
--- a/include/private/android_filesystem_config.h
+++ b/include/private/android_filesystem_config.h
@@ -19,6 +19,33 @@
** by the device side of adb.
*/
+/*
+ * This file is consumed by build/tools/fs_config and is used
+ * for generating various files. Anything #define AID_<name>
+ * becomes the mapping for getpwnam/getpwuid, etc. The <name>
+ * field is lowercased.
+ * For example:
+ * #define AID_FOO_BAR 6666 becomes a friendly name of "foo_bar"
+ *
+ * The above holds true with the exception of:
+ * mediacodec
+ * mediaex
+ * mediadrm
+ * Whose friendly names do not match the #define statements.
+ *
+ * Additionally, AID_OEM_RESERVED_START and AID_OEM_RESERVED_END
+ * can be used to define reserved OEM ranges used for sanity checks
+ * during the build process. The rules are, they must end with START/END
+ * The proper convention is incrementing a number like so:
+ * AID_OEM_RESERVED_START
+ * AID_OEM_RESERVED_1_START
+ * AID_OEM_RESERVED_2_START
+ * ...
+ * The same applies to the END.
+ * They are not required to be in order, but must not overlap each other and
+ * must define a START and END'ing range. START must be smaller than END.
+ */
+
#ifndef _ANDROID_FILESYSTEM_CONFIG_H_
#define _ANDROID_FILESYSTEM_CONFIG_H_
diff --git a/include/utils/FastStrcmp.h b/include/utils/FastStrcmp.h
new file mode 100644
index 0000000..3844e7d
--- /dev/null
+++ b/include/utils/FastStrcmp.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2014-2016 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 _ANDROID_UTILS_FASTSTRCMP_H__
+#define _ANDROID_UTILS_FASTSTRCMP_H__
+
+#ifdef __cplusplus
+
+// Optimized for instruction cache locality
+//
+// Template class fastcmp used to create more time-efficient str*cmp
+// functions by pre-checking the first character before resorting
+// to calling the underlying string function. Profiled with a
+// measurable speedup when used in hot code. Usage is of the form:
+//
+// fastcmp<strncmp>(str1, str2, len)
+//
+// NB: Does not work for the case insensitive str*cmp functions.
+// NB: Returns boolean, do not use if expecting to check negative value.
+// Thus not semantically identical to the expected function behavior.
+
+template <int (*cmp)(const char *l, const char *r, const size_t s)>
+static inline int fastcmp(const char *l, const char *r, const size_t s) {
+ return (*l != *r) || cmp(l + 1, r + 1, s - 1);
+}
+
+template <int (*cmp)(const void *l, const void *r, const size_t s)>
+static inline int fastcmp(const void *lv, const void *rv, const size_t s) {
+ const char *l = static_cast<const char *>(lv);
+ const char *r = static_cast<const char *>(rv);
+ return (*l != *r) || cmp(l + 1, r + 1, s - 1);
+}
+
+template <int (*cmp)(const char *l, const char *r)>
+static inline int fastcmp(const char *l, const char *r) {
+ return (*l != *r) || cmp(l + 1, r + 1);
+}
+
+#endif
+
+#endif // _ANDROID_UTILS_FASTSTRCMP_H__
diff --git a/include/utils/Trace.h b/include/utils/Trace.h
index 6ba68f6..eeba40d 100644
--- a/include/utils/Trace.h
+++ b/include/utils/Trace.h
@@ -33,10 +33,10 @@
// See <cutils/trace.h> for more ATRACE_* macros.
-// ATRACE_NAME traces the beginning and end of the current scope. To trace
-// the correct start and end times this macro should be declared first in the
-// scope body.
-#define ATRACE_NAME(name) android::ScopedTrace ___tracer(ATRACE_TAG, name)
+// ATRACE_NAME traces from its location until the end of its enclosing scope.
+#define _PASTE(x, y) x ## y
+#define PASTE(x, y) _PASTE(x,y)
+#define ATRACE_NAME(name) android::ScopedTrace PASTE(___tracer, __LINE__) (ATRACE_TAG, name)
// ATRACE_CALL is an ATRACE_NAME that uses the current function name.
#define ATRACE_CALL() ATRACE_NAME(__FUNCTION__)
diff --git a/init/service.cpp b/init/service.cpp
index a7eaf66..e967a7c 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -567,9 +567,9 @@
console_ = default_console;
}
- bool have_console = (open(console_.c_str(), O_RDWR | O_CLOEXEC) != -1);
+ bool have_console = (access(console_.c_str(), R_OK | W_OK) != -1);
if (!have_console) {
- PLOG(ERROR) << "service '" << name_ << "' couldn't open console '" << console_ << "'";
+ PLOG(ERROR) << "service '" << name_ << "' cannot gain read/write access to console '" << console_ << "'";
flags_ |= SVC_DISABLED;
return false;
}
diff --git a/libbacktrace/Android.bp b/libbacktrace/Android.bp
index 5c72234..200b6d6 100644
--- a/libbacktrace/Android.bp
+++ b/libbacktrace/Android.bp
@@ -117,4 +117,17 @@
},
cflags: ["-O0"],
srcs: ["backtrace_testlib.c"],
-}
+
+ target: {
+ linux: {
+ shared_libs: [
+ "libunwind",
+ ],
+ },
+ android: {
+ shared_libs: [
+ "libunwind",
+ ],
+ },
+ }
+}
\ No newline at end of file
diff --git a/libbacktrace/Android.mk b/libbacktrace/Android.mk
index 0f01872..f4976e9 100644
--- a/libbacktrace/Android.mk
+++ b/libbacktrace/Android.mk
@@ -111,8 +111,6 @@
backtrace_test_ldlibs_host += \
-ldl \
-backtrace_test_strip_module := false
-
module := backtrace_test
module_tag := debug
build_type := target
diff --git a/libbacktrace/BacktraceOffline.cpp b/libbacktrace/BacktraceOffline.cpp
index a05a6d8..9e95563 100644
--- a/libbacktrace/BacktraceOffline.cpp
+++ b/libbacktrace/BacktraceOffline.cpp
@@ -50,6 +50,48 @@
#include "BacktraceLog.h"
+struct EhFrame {
+ uint64_t hdr_vaddr;
+ uint64_t vaddr;
+ uint64_t fde_table_offset;
+ uintptr_t min_func_vaddr;
+ std::vector<uint8_t> hdr_data;
+ std::vector<uint8_t> data;
+};
+
+struct ArmIdxEntry {
+ uint32_t func_offset;
+ uint32_t value;
+};
+
+struct ArmExidx {
+ uint64_t exidx_vaddr;
+ uint64_t extab_vaddr;
+ std::vector<ArmIdxEntry> exidx_data;
+ std::vector<uint8_t> extab_data;
+ // There is a one-to-one map from exidx_data.func_offset to func_vaddr_array.
+ std::vector<uint32_t> func_vaddr_array;
+};
+
+struct DebugFrameInfo {
+ bool has_arm_exidx;
+ bool has_eh_frame;
+ bool has_debug_frame;
+ bool has_gnu_debugdata;
+
+ EhFrame eh_frame;
+ ArmExidx arm_exidx;
+
+ uint64_t min_vaddr;
+ uint64_t text_end_vaddr;
+
+ DebugFrameInfo() : has_arm_exidx(false), has_eh_frame(false),
+ has_debug_frame(false), has_gnu_debugdata(false) { }
+};
+
+static std::unordered_map<std::string, std::unique_ptr<DebugFrameInfo>>& g_debug_frames =
+ *new std::unordered_map<std::string, std::unique_ptr<DebugFrameInfo>>;
+
void Space::Clear() {
start = 0;
end = 0;
@@ -207,23 +249,18 @@
if (read_size != 0) {
return read_size;
}
+ read_size = arm_exidx_space_.Read(addr, buffer, bytes);
+ if (read_size != 0) {
+ return read_size;
+ }
+ read_size = arm_extab_space_.Read(addr, buffer, bytes);
+ if (read_size != 0) {
+ return read_size;
+ }
read_size = stack_space_.Read(addr, buffer, bytes);
return read_size;
}
-static bool FileOffsetToVaddr(
- const std::vector<DebugFrameInfo::EhFrame::ProgramHeader>& program_headers,
- uint64_t file_offset, uint64_t* vaddr) {
- for (auto& header : program_headers) {
- if (file_offset >= header.file_offset && file_offset < header.file_offset + header.file_size) {
- // TODO: Consider load_bias?
- *vaddr = file_offset - header.file_offset + header.vaddr;
- return true;
- }
- }
- return false;
-}
-
bool BacktraceOffline::FindProcInfo(unw_addr_space_t addr_space, uint64_t ip,
unw_proc_info_t* proc_info, int need_unwind_info) {
backtrace_map_t map;
@@ -236,45 +273,90 @@
if (debug_frame == nullptr) {
return false;
}
- if (debug_frame->is_eh_frame) {
- uint64_t ip_offset = ip - map.start + map.offset;
- uint64_t ip_vaddr; // vaddr in the elf file.
- bool result = FileOffsetToVaddr(debug_frame->eh_frame.program_headers, ip_offset, &ip_vaddr);
- if (!result) {
- return false;
- }
- // Calculate the addresses where .eh_frame_hdr and .eh_frame stay when the process was running.
- eh_frame_hdr_space_.start = (ip - ip_vaddr) + debug_frame->eh_frame.eh_frame_hdr_vaddr;
- eh_frame_hdr_space_.end =
- eh_frame_hdr_space_.start + debug_frame->eh_frame.eh_frame_hdr_data.size();
- eh_frame_hdr_space_.data = debug_frame->eh_frame.eh_frame_hdr_data.data();
-
- eh_frame_space_.start = (ip - ip_vaddr) + debug_frame->eh_frame.eh_frame_vaddr;
- eh_frame_space_.end = eh_frame_space_.start + debug_frame->eh_frame.eh_frame_data.size();
- eh_frame_space_.data = debug_frame->eh_frame.eh_frame_data.data();
-
- unw_dyn_info di;
- memset(&di, '\0', sizeof(di));
- di.start_ip = map.start;
- di.end_ip = map.end;
- di.format = UNW_INFO_FORMAT_REMOTE_TABLE;
- di.u.rti.name_ptr = 0;
- di.u.rti.segbase = eh_frame_hdr_space_.start;
- di.u.rti.table_data =
- eh_frame_hdr_space_.start + debug_frame->eh_frame.fde_table_offset_in_eh_frame_hdr;
- di.u.rti.table_len = (eh_frame_hdr_space_.end - di.u.rti.table_data) / sizeof(unw_word_t);
- int ret = dwarf_search_unwind_table(addr_space, ip, &di, proc_info, need_unwind_info, this);
- return ret == 0;
- }
eh_frame_hdr_space_.Clear();
eh_frame_space_.Clear();
- unw_dyn_info_t di;
- unw_word_t segbase = map.start - map.offset;
- int found = dwarf_find_debug_frame(0, &di, ip, segbase, filename.c_str(), map.start, map.end);
- if (found == 1) {
- int ret = dwarf_search_unwind_table(addr_space, ip, &di, proc_info, need_unwind_info, this);
- return ret == 0;
+ arm_exidx_space_.Clear();
+ arm_extab_space_.Clear();
+
+ // vaddr in the elf file.
+ uint64_t ip_vaddr = ip - map.start + debug_frame->min_vaddr;
+ if (debug_frame->has_arm_exidx) {
+ auto& func_vaddrs = debug_frame->arm_exidx.func_vaddr_array;
+ if (ip_vaddr >= func_vaddrs[0] && ip_vaddr < debug_frame->text_end_vaddr) {
+ // Use binary search to find the correct function.
+ auto it = std::upper_bound(func_vaddrs.begin(), func_vaddrs.end(),
+ static_cast<uint32_t>(ip_vaddr));
+ if (it != func_vaddrs.begin()) {
+ --it;
+ // Found the exidx entry.
+ size_t index = it - func_vaddrs.begin();
+
+ proc_info->format = UNW_INFO_FORMAT_ARM_EXIDX;
+ proc_info->unwind_info = reinterpret_cast<void*>(
+ static_cast<uintptr_t>(index * sizeof(ArmIdxEntry) +
+ debug_frame->arm_exidx.exidx_vaddr +
+ debug_frame->min_vaddr));
+
+ // Prepare arm_exidx space and arm_extab space.
+ arm_exidx_space_.start = debug_frame->min_vaddr + debug_frame->arm_exidx.exidx_vaddr;
+ arm_exidx_space_.end = arm_exidx_space_.start +
+ debug_frame->arm_exidx.exidx_data.size() * sizeof(ArmIdxEntry);
+ arm_exidx_space_.data = reinterpret_cast<const uint8_t*>(
+ debug_frame->arm_exidx.exidx_data.data());
+
+ arm_extab_space_.start = debug_frame->min_vaddr + debug_frame->arm_exidx.extab_vaddr;
+ arm_extab_space_.end = arm_extab_space_.start +
+ debug_frame->arm_exidx.extab_data.size();
+ arm_extab_space_.data = debug_frame->arm_exidx.extab_data.data();
+ return true;
+ }
+ }
+ }
+
+ if (debug_frame->has_eh_frame) {
+ if (ip_vaddr >= debug_frame->eh_frame.min_func_vaddr &&
+ ip_vaddr < debug_frame->text_end_vaddr) {
+ // Prepare eh_frame_hdr space and eh_frame space.
+ eh_frame_hdr_space_.start = ip - ip_vaddr + debug_frame->eh_frame.hdr_vaddr;
+ eh_frame_hdr_space_.end =
+ eh_frame_hdr_space_.start + debug_frame->eh_frame.hdr_data.size();
+ eh_frame_hdr_space_.data = debug_frame->eh_frame.hdr_data.data();
+
+ eh_frame_space_.start = ip - ip_vaddr + debug_frame->eh_frame.vaddr;
+ eh_frame_space_.end = eh_frame_space_.start + debug_frame->eh_frame.data.size();
+ eh_frame_space_.data = debug_frame->eh_frame.data.data();
+
+ unw_dyn_info di;
+ memset(&di, '\0', sizeof(di));
+ di.start_ip = map.start;
+ di.end_ip = map.end;
+ di.format = UNW_INFO_FORMAT_REMOTE_TABLE;
+ di.u.rti.name_ptr = 0;
+ di.u.rti.segbase = eh_frame_hdr_space_.start;
+ di.u.rti.table_data =
+ eh_frame_hdr_space_.start + debug_frame->eh_frame.fde_table_offset;
+ di.u.rti.table_len = (eh_frame_hdr_space_.end - di.u.rti.table_data) / sizeof(unw_word_t);
+ // TODO: Do it ourselves is more efficient than calling this function.
+ int ret = dwarf_search_unwind_table(addr_space, ip, &di, proc_info, need_unwind_info, this);
+ if (ret == 0) {
+ return true;
+ }
+ }
+ }
+
+ if (debug_frame->has_debug_frame || debug_frame->has_gnu_debugdata) {
+ unw_dyn_info_t di;
+ unw_word_t segbase = map.start - map.offset;
+ // TODO: http://b/32916571
+ // TODO: Do it ourselves is more efficient than calling libunwind functions.
+ int found = dwarf_find_debug_frame(0, &di, ip, segbase, filename.c_str(), map.start, map.end);
+ if (found == 1) {
+ int ret = dwarf_search_unwind_table(addr_space, ip, &di, proc_info, need_unwind_info, this);
+ if (ret == 0) {
+ return true;
+ }
+ }
}
return false;
}
@@ -462,33 +544,18 @@
return "";
}
-std::unordered_map<std::string, std::unique_ptr<DebugFrameInfo>> BacktraceOffline::debug_frames_;
-std::unordered_set<std::string> BacktraceOffline::debug_frame_missing_files_;
-
static DebugFrameInfo* ReadDebugFrameFromFile(const std::string& filename);
DebugFrameInfo* BacktraceOffline::GetDebugFrameInFile(const std::string& filename) {
if (cache_file_) {
- auto it = debug_frames_.find(filename);
- if (it != debug_frames_.end()) {
+ auto it = g_debug_frames.find(filename);
+ if (it != g_debug_frames.end()) {
return it->second.get();
}
- if (debug_frame_missing_files_.find(filename) != debug_frame_missing_files_.end()) {
- return nullptr;
- }
}
DebugFrameInfo* debug_frame = ReadDebugFrameFromFile(filename);
if (cache_file_) {
- if (debug_frame != nullptr) {
- debug_frames_.emplace(filename, std::unique_ptr<DebugFrameInfo>(debug_frame));
- } else {
- debug_frame_missing_files_.insert(filename);
- }
- } else {
- if (last_debug_frame_ != nullptr) {
- delete last_debug_frame_;
- }
- last_debug_frame_ = debug_frame;
+ g_debug_frames.emplace(filename, std::unique_ptr<DebugFrameInfo>(debug_frame));
}
return debug_frame;
}
@@ -556,72 +623,106 @@
return true;
}
-using ProgramHeader = DebugFrameInfo::EhFrame::ProgramHeader;
-
template <class ELFT>
DebugFrameInfo* ReadDebugFrameFromELFFile(const llvm::object::ELFFile<ELFT>* elf) {
+ DebugFrameInfo* result = new DebugFrameInfo;
+ result->text_end_vaddr = std::numeric_limits<uint64_t>::max();
+
bool has_eh_frame_hdr = false;
- uint64_t eh_frame_hdr_vaddr = 0;
- std::vector<uint8_t> eh_frame_hdr_data;
bool has_eh_frame = false;
- uint64_t eh_frame_vaddr = 0;
- std::vector<uint8_t> eh_frame_data;
for (auto it = elf->section_begin(); it != elf->section_end(); ++it) {
llvm::ErrorOr<llvm::StringRef> name = elf->getSectionName(&*it);
if (name) {
- if (name.get() == ".debug_frame") {
- DebugFrameInfo* debug_frame = new DebugFrameInfo;
- debug_frame->is_eh_frame = false;
- return debug_frame;
- }
- if (name.get() == ".eh_frame_hdr") {
- has_eh_frame_hdr = true;
- eh_frame_hdr_vaddr = it->sh_addr;
+ std::string s = name.get();
+ if (s == ".debug_frame") {
+ result->has_debug_frame = true;
+ } else if (s == ".gnu_debugdata") {
+ result->has_gnu_debugdata = true;
+ } else if (s == ".eh_frame_hdr") {
+ result->eh_frame.hdr_vaddr = it->sh_addr;
llvm::ErrorOr<llvm::ArrayRef<uint8_t>> data = elf->getSectionContents(&*it);
if (data) {
- eh_frame_hdr_data.insert(eh_frame_hdr_data.begin(), data->data(),
- data->data() + data->size());
- } else {
- return nullptr;
+ result->eh_frame.hdr_data.insert(result->eh_frame.hdr_data.end(),
+ data->data(), data->data() + data->size());
+
+ uint64_t fde_table_offset;
+ if (GetFdeTableOffsetInEhFrameHdr(result->eh_frame.hdr_data,
+ &fde_table_offset)) {
+ result->eh_frame.fde_table_offset = fde_table_offset;
+ // Make sure we have at least one entry in fde_table.
+ if (fde_table_offset + 2 * sizeof(int32_t) <= data->size()) {
+ intptr_t eh_frame_hdr_vaddr = it->sh_addr;
+ int32_t sdata;
+ uint8_t* p = result->eh_frame.hdr_data.data() + fde_table_offset;
+ memcpy(&sdata, p, sizeof(sdata));
+ result->eh_frame.min_func_vaddr = eh_frame_hdr_vaddr + sdata;
+ has_eh_frame_hdr = true;
+ }
+ }
}
- } else if (name.get() == ".eh_frame") {
- has_eh_frame = true;
- eh_frame_vaddr = it->sh_addr;
+ } else if (s == ".eh_frame") {
+ result->eh_frame.vaddr = it->sh_addr;
llvm::ErrorOr<llvm::ArrayRef<uint8_t>> data = elf->getSectionContents(&*it);
if (data) {
- eh_frame_data.insert(eh_frame_data.begin(), data->data(), data->data() + data->size());
- } else {
- return nullptr;
+ result->eh_frame.data.insert(result->eh_frame.data.end(),
+ data->data(), data->data() + data->size());
+ has_eh_frame = true;
}
+ } else if (s == ".ARM.exidx") {
+ result->arm_exidx.exidx_vaddr = it->sh_addr;
+ llvm::ErrorOr<llvm::ArrayRef<uint8_t>> data = elf->getSectionContents(&*it);
+ if (data) {
+ size_t entry_count = data->size() / sizeof(ArmIdxEntry);
+ result->arm_exidx.exidx_data.resize(entry_count);
+ memcpy(result->arm_exidx.exidx_data.data(), data->data(),
+ entry_count * sizeof(ArmIdxEntry));
+ if (entry_count > 0u) {
+ // Change IdxEntry.func_offset into vaddr.
+ result->arm_exidx.func_vaddr_array.reserve(entry_count);
+ uint32_t vaddr = it->sh_addr;
+ for (auto& entry : result->arm_exidx.exidx_data) {
+ uint32_t func_offset = entry.func_offset + vaddr;
+ // Clear bit 31 for the prel31 offset.
+ // Arm sets bit 0 to mark it as thumb code, remove the flag.
+ result->arm_exidx.func_vaddr_array.push_back(
+ func_offset & 0x7ffffffe);
+ vaddr += 8;
+ }
+ result->has_arm_exidx = true;
+ }
+ }
+ } else if (s == ".ARM.extab") {
+ result->arm_exidx.extab_vaddr = it->sh_addr;
+ llvm::ErrorOr<llvm::ArrayRef<uint8_t>> data = elf->getSectionContents(&*it);
+ if (data) {
+ result->arm_exidx.extab_data.insert(result->arm_exidx.extab_data.end(),
+ data->data(), data->data() + data->size());
+ }
+ } else if (s == ".text") {
+ result->text_end_vaddr = it->sh_addr + it->sh_size;
}
}
}
- if (!(has_eh_frame_hdr && has_eh_frame)) {
- return nullptr;
- }
- uint64_t fde_table_offset;
- if (!GetFdeTableOffsetInEhFrameHdr(eh_frame_hdr_data, &fde_table_offset)) {
- return nullptr;
+
+ if (has_eh_frame_hdr && has_eh_frame) {
+ result->has_eh_frame = true;
}
- std::vector<ProgramHeader> program_headers;
+ result->min_vaddr = std::numeric_limits<uint64_t>::max();
for (auto it = elf->program_header_begin(); it != elf->program_header_end(); ++it) {
- ProgramHeader header;
- header.vaddr = it->p_vaddr;
- header.file_offset = it->p_offset;
- header.file_size = it->p_filesz;
- program_headers.push_back(header);
+ if ((it->p_type == llvm::ELF::PT_LOAD) && (it->p_flags & llvm::ELF::PF_X)) {
+ if (it->p_vaddr < result->min_vaddr) {
+ result->min_vaddr = it->p_vaddr;
+ }
+ }
}
- DebugFrameInfo* debug_frame = new DebugFrameInfo;
- debug_frame->is_eh_frame = true;
- debug_frame->eh_frame.eh_frame_hdr_vaddr = eh_frame_hdr_vaddr;
- debug_frame->eh_frame.eh_frame_vaddr = eh_frame_vaddr;
- debug_frame->eh_frame.fde_table_offset_in_eh_frame_hdr = fde_table_offset;
- debug_frame->eh_frame.eh_frame_hdr_data = std::move(eh_frame_hdr_data);
- debug_frame->eh_frame.eh_frame_data = std::move(eh_frame_data);
- debug_frame->eh_frame.program_headers = program_headers;
- return debug_frame;
+ if (!result->has_eh_frame && !result->has_arm_exidx && !result->has_debug_frame &&
+ !result->has_gnu_debugdata) {
+ delete result;
+ return nullptr;
+ }
+ return result;
}
static bool IsValidElfPath(const std::string& filename) {
diff --git a/libbacktrace/BacktraceOffline.h b/libbacktrace/BacktraceOffline.h
index 42f826d..c0b686e 100644
--- a/libbacktrace/BacktraceOffline.h
+++ b/libbacktrace/BacktraceOffline.h
@@ -40,22 +40,7 @@
size_t Read(uint64_t addr, uint8_t* buffer, size_t size);
};
-struct DebugFrameInfo {
- bool is_eh_frame;
- struct EhFrame {
- uint64_t eh_frame_hdr_vaddr;
- uint64_t eh_frame_vaddr;
- uint64_t fde_table_offset_in_eh_frame_hdr;
- std::vector<uint8_t> eh_frame_hdr_data;
- std::vector<uint8_t> eh_frame_data;
- struct ProgramHeader {
- uint64_t vaddr;
- uint64_t file_offset;
- uint64_t file_size;
- };
- std::vector<ProgramHeader> program_headers;
- } eh_frame;
-};
+struct DebugFrameInfo;
class BacktraceOffline : public Backtrace {
public:
@@ -63,18 +48,13 @@
bool cache_file)
: Backtrace(pid, tid, map),
cache_file_(cache_file),
- context_(nullptr),
- last_debug_frame_(nullptr) {
+ context_(nullptr) {
stack_space_.start = stack.start;
stack_space_.end = stack.end;
stack_space_.data = stack.data;
}
- virtual ~BacktraceOffline() {
- if (last_debug_frame_ != nullptr) {
- delete last_debug_frame_;
- }
- }
+ virtual ~BacktraceOffline() = default;
bool Unwind(size_t num_ignore_frames, ucontext_t* context) override;
@@ -91,15 +71,13 @@
std::string GetFunctionNameRaw(uintptr_t pc, uintptr_t* offset) override;
DebugFrameInfo* GetDebugFrameInFile(const std::string& filename);
- static std::unordered_map<std::string, std::unique_ptr<DebugFrameInfo>> debug_frames_;
- static std::unordered_set<std::string> debug_frame_missing_files_;
-
bool cache_file_;
ucontext_t* context_;
Space eh_frame_hdr_space_;
Space eh_frame_space_;
+ Space arm_extab_space_;
+ Space arm_exidx_space_;
Space stack_space_;
- DebugFrameInfo* last_debug_frame_;
};
#endif // _LIBBACKTRACE_BACKTRACE_OFFLINE_H
diff --git a/libbacktrace/backtrace_offline_test.cpp b/libbacktrace/backtrace_offline_test.cpp
index d6dc2c9..49fcb29 100644
--- a/libbacktrace/backtrace_offline_test.cpp
+++ b/libbacktrace/backtrace_offline_test.cpp
@@ -1,3 +1,20 @@
+/*
+ * 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 <inttypes.h>
#include <libunwind.h>
#include <pthread.h>
#include <stdint.h>
@@ -9,6 +26,9 @@
#include <utility>
#include <vector>
+#include <android-base/file.h>
+#include <android-base/stringprintf.h>
+#include <android-base/strings.h>
#include <backtrace/Backtrace.h>
#include <backtrace/BacktraceMap.h>
#include <cutils/threads.h>
@@ -22,29 +42,7 @@
int test_level_three(int, int, int, int, void (*)(void*), void*);
int test_level_four(int, int, int, int, void (*)(void*), void*);
int test_recursive_call(int, void (*)(void*), void*);
-}
-
-static volatile bool g_exit_flag = false;
-
-static void GetContextAndExit(void* arg) {
- unw_context_t* unw_context = reinterpret_cast<unw_context_t*>(arg);
- unw_getcontext(unw_context);
- // Don't touch the stack anymore.
- while (!g_exit_flag) {
- }
-}
-
-struct OfflineThreadArg {
- unw_context_t unw_context;
- pid_t tid;
- std::function<int(void (*)(void*), void*)> function;
-};
-
-static void* OfflineThreadFunc(void* arg) {
- OfflineThreadArg* fn_arg = reinterpret_cast<OfflineThreadArg*>(arg);
- fn_arg->tid = gettid();
- fn_arg->function(GetContextAndExit, &fn_arg->unw_context);
- return nullptr;
+void test_get_context_and_wait(unw_context_t* unw_context, volatile int* exit_flag);
}
static ucontext_t GetUContextFromUnwContext(const unw_context_t& unw_context) {
@@ -73,11 +71,68 @@
return ucontext;
}
-static void OfflineBacktraceFunctionCall(const std::function<int(void (*)(void*), void*)>& function,
- std::vector<uintptr_t>* pc_values) {
+struct FunctionSymbol {
+ std::string name;
+ uintptr_t start;
+ uintptr_t end;
+};
+
+static std::vector<FunctionSymbol> GetFunctionSymbols() {
+ std::vector<FunctionSymbol> symbols = {
+ {"unknown_start", 0, 0},
+ {"test_level_one", reinterpret_cast<uintptr_t>(&test_level_one), 0},
+ {"test_level_two", reinterpret_cast<uintptr_t>(&test_level_two), 0},
+ {"test_level_three", reinterpret_cast<uintptr_t>(&test_level_three), 0},
+ {"test_level_four", reinterpret_cast<uintptr_t>(&test_level_four), 0},
+ {"test_recursive_call", reinterpret_cast<uintptr_t>(&test_recursive_call), 0},
+ {"test_get_context_and_wait", reinterpret_cast<uintptr_t>(&test_get_context_and_wait), 0},
+ {"unknown_end", static_cast<uintptr_t>(-1), static_cast<uintptr_t>(-1)},
+ };
+ std::sort(
+ symbols.begin(), symbols.end(),
+ [](const FunctionSymbol& s1, const FunctionSymbol& s2) { return s1.start < s2.start; });
+ for (size_t i = 0; i + 1 < symbols.size(); ++i) {
+ symbols[i].end = symbols[i + 1].start;
+ }
+ return symbols;
+}
+
+static std::string RawDataToHexString(const void* data, size_t size) {
+ const uint8_t* p = static_cast<const uint8_t*>(data);
+ std::string s;
+ for (size_t i = 0; i < size; ++i) {
+ s += android::base::StringPrintf("%02x", p[i]);
+ }
+ return s;
+}
+
+static void HexStringToRawData(const char* s, void* data, size_t size) {
+ uint8_t* p = static_cast<uint8_t*>(data);
+ for (size_t i = 0; i < size; ++i) {
+ int value;
+ sscanf(s, "%02x", &value);
+ *p++ = static_cast<uint8_t>(value);
+ s += 2;
+ }
+}
+
+struct OfflineThreadArg {
+ unw_context_t unw_context;
+ pid_t tid;
+ volatile int exit_flag;
+};
+
+static void* OfflineThreadFunc(void* arg) {
+ OfflineThreadArg* fn_arg = reinterpret_cast<OfflineThreadArg*>(arg);
+ fn_arg->tid = gettid();
+ test_get_context_and_wait(&fn_arg->unw_context, &fn_arg->exit_flag);
+ return nullptr;
+}
+
+// This test is disable because it is for generating test data.
+TEST(libbacktrace, DISABLED_generate_offline_testdata) {
// Create a thread to generate the needed stack and registers information.
- g_exit_flag = false;
- const size_t stack_size = 1024 * 1024;
+ const size_t stack_size = 16 * 1024;
void* stack = mmap(NULL, stack_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
ASSERT_NE(MAP_FAILED, stack);
uintptr_t stack_addr = reinterpret_cast<uintptr_t>(stack);
@@ -86,18 +141,17 @@
ASSERT_EQ(0, pthread_attr_setstack(&attr, reinterpret_cast<void*>(stack), stack_size));
pthread_t thread;
OfflineThreadArg arg;
- arg.function = function;
+ arg.exit_flag = 0;
ASSERT_EQ(0, pthread_create(&thread, &attr, OfflineThreadFunc, &arg));
// Wait for the offline thread to generate the stack and unw_context information.
sleep(1);
// Copy the stack information.
std::vector<uint8_t> stack_data(reinterpret_cast<uint8_t*>(stack),
reinterpret_cast<uint8_t*>(stack) + stack_size);
- g_exit_flag = true;
+ arg.exit_flag = 1;
ASSERT_EQ(0, pthread_join(thread, nullptr));
ASSERT_EQ(0, munmap(stack, stack_size));
- // Do offline backtrace.
std::unique_ptr<BacktraceMap> map(BacktraceMap::Create(getpid()));
ASSERT_TRUE(map != nullptr);
@@ -106,47 +160,44 @@
stack_info.end = stack_addr + stack_size;
stack_info.data = stack_data.data();
- std::unique_ptr<Backtrace> backtrace(
- Backtrace::CreateOffline(getpid(), arg.tid, map.get(), stack_info));
- ASSERT_TRUE(backtrace != nullptr);
-
- ucontext_t ucontext = GetUContextFromUnwContext(arg.unw_context);
- ASSERT_TRUE(backtrace->Unwind(0, &ucontext));
-
- // Collect pc values of the call stack frames.
- for (size_t i = 0; i < backtrace->NumFrames(); ++i) {
- pc_values->push_back(backtrace->GetFrame(i)->pc);
+ // Generate offline testdata.
+ std::string testdata;
+ // 1. Dump pid, tid
+ testdata += android::base::StringPrintf("pid: %d tid: %d\n", getpid(), arg.tid);
+ // 2. Dump maps
+ for (auto it = map->begin(); it != map->end(); ++it) {
+ testdata += android::base::StringPrintf(
+ "map: start: %" PRIxPTR " end: %" PRIxPTR " offset: %" PRIxPTR
+ " load_base: %" PRIxPTR " flags: %d name: %s\n",
+ it->start, it->end, it->offset, it->load_base, it->flags, it->name.c_str());
}
+ // 3. Dump registers
+ testdata += android::base::StringPrintf("registers: %zu ", sizeof(arg.unw_context));
+ testdata += RawDataToHexString(&arg.unw_context, sizeof(arg.unw_context));
+ testdata.push_back('\n');
+
+ // 4. Dump stack
+ testdata += android::base::StringPrintf(
+ "stack: start: %" PRIx64 " end: %" PRIx64 " size: %zu ",
+ stack_info.start, stack_info.end, stack_data.size());
+ testdata += RawDataToHexString(stack_data.data(), stack_data.size());
+ testdata.push_back('\n');
+
+ // 5. Dump function symbols
+ std::vector<FunctionSymbol> function_symbols = GetFunctionSymbols();
+ for (const auto& symbol : function_symbols) {
+ testdata += android::base::StringPrintf(
+ "function: start: %" PRIxPTR " end: %" PRIxPTR" name: %s\n",
+ symbol.start, symbol.end, symbol.name.c_str());
+ }
+
+ ASSERT_TRUE(android::base::WriteStringToFile(testdata, "offline_testdata"));
}
// Return the name of the function which matches the address. Although we don't know the
// exact end of each function, it is accurate enough for the tests.
-static std::string FunctionNameForAddress(uintptr_t addr) {
- struct FunctionSymbol {
- std::string name;
- uintptr_t start;
- uintptr_t end;
- };
-
- static std::vector<FunctionSymbol> symbols;
- if (symbols.empty()) {
- symbols = std::vector<FunctionSymbol>{
- {"unknown_start", 0, 0},
- {"test_level_one", reinterpret_cast<uintptr_t>(&test_level_one), 0},
- {"test_level_two", reinterpret_cast<uintptr_t>(&test_level_two), 0},
- {"test_level_three", reinterpret_cast<uintptr_t>(&test_level_three), 0},
- {"test_level_four", reinterpret_cast<uintptr_t>(&test_level_four), 0},
- {"test_recursive_call", reinterpret_cast<uintptr_t>(&test_recursive_call), 0},
- {"GetContextAndExit", reinterpret_cast<uintptr_t>(&GetContextAndExit), 0},
- {"unknown_end", static_cast<uintptr_t>(-1), static_cast<uintptr_t>(-1)},
- };
- std::sort(
- symbols.begin(), symbols.end(),
- [](const FunctionSymbol& s1, const FunctionSymbol& s2) { return s1.start < s2.start; });
- for (size_t i = 0; i + 1 < symbols.size(); ++i) {
- symbols[i].end = symbols[i + 1].start;
- }
- }
+static std::string FunctionNameForAddress(uintptr_t addr,
+ const std::vector<FunctionSymbol>& symbols) {
for (auto& symbol : symbols) {
if (addr >= symbol.start && addr < symbol.end) {
return symbol.name;
@@ -155,35 +206,136 @@
return "";
}
-TEST(libbacktrace, offline) {
- std::function<int(void (*)(void*), void*)> function =
- std::bind(test_level_one, 1, 2, 3, 4, std::placeholders::_1, std::placeholders::_2);
+static std::string GetArch() {
+#if defined(__arm__)
+ return "arm";
+#elif defined(__aarch64__)
+ return "aarch64";
+#elif defined(__i386__)
+ return "x86";
+#elif defined(__x86_64__)
+ return "x86_64";
+#else
+ return "";
+#endif
+}
+
+static void BacktraceOfflineTest(const std::string& testlib_name) {
+ const std::string arch = GetArch();
+ if (arch.empty()) {
+ GTEST_LOG_(INFO) << "This test does nothing on current arch.";
+ return;
+ }
+ const std::string offline_testdata_path = "testdata/" + arch + "/offline_testdata";
+ std::string testdata;
+ ASSERT_TRUE(android::base::ReadFileToString(offline_testdata_path, &testdata));
+
+ const std::string testlib_path = "testdata/" + arch + "/" + testlib_name;
+ struct stat st;
+ if (stat(testlib_path.c_str(), &st) == -1) {
+ GTEST_LOG_(INFO) << "This test is skipped as " << testlib_path << " doesn't exist.";
+ return;
+ }
+
+ // Parse offline_testdata.
+ std::vector<std::string> lines = android::base::Split(testdata, "\n");
+ int pid;
+ int tid;
+ std::vector<backtrace_map_t> maps;
+ unw_context_t unw_context;
+ backtrace_stackinfo_t stack_info;
+ std::vector<uint8_t> stack;
+ std::vector<FunctionSymbol> symbols;
+ for (const auto& line : lines) {
+ if (android::base::StartsWith(line, "pid:")) {
+ sscanf(line.c_str(), "pid: %d tid: %d", &pid, &tid);
+ } else if (android::base::StartsWith(line, "map:")) {
+ maps.resize(maps.size() + 1);
+ int pos;
+ sscanf(line.c_str(),
+ "map: start: %" SCNxPTR " end: %" SCNxPTR " offset: %" SCNxPTR
+ " load_base: %" SCNxPTR " flags: %d name: %n",
+ &maps.back().start, &maps.back().end, &maps.back().offset,
+ &maps.back().load_base, &maps.back().flags, &pos);
+ maps.back().name = android::base::Trim(line.substr(pos));
+ } else if (android::base::StartsWith(line, "registers:")) {
+ size_t size;
+ int pos;
+ sscanf(line.c_str(), "registers: %zu %n", &size, &pos);
+ ASSERT_EQ(sizeof(unw_context), size);
+ HexStringToRawData(&line[pos], &unw_context, size);
+ } else if (android::base::StartsWith(line, "stack:")) {
+ size_t size;
+ int pos;
+ sscanf(line.c_str(),
+ "stack: start: %" SCNx64 " end: %" SCNx64 " size: %zu %n",
+ &stack_info.start, &stack_info.end, &size, &pos);
+ stack.resize(size);
+ HexStringToRawData(&line[pos], &stack[0], size);
+ stack_info.data = stack.data();
+ } else if (android::base::StartsWith(line, "function:")) {
+ symbols.resize(symbols.size() + 1);
+ int pos;
+ sscanf(line.c_str(),
+ "function: start: %" SCNxPTR " end: %" SCNxPTR " name: %n",
+ &symbols.back().start, &symbols.back().end,
+ &pos);
+ symbols.back().name = line.substr(pos);
+ }
+ }
+
+ // Fix path of libbacktrace_testlib.so.
+ for (auto& map : maps) {
+ if (map.name.find("libbacktrace_test.so") != std::string::npos) {
+ map.name = testlib_path;
+ }
+ }
+
+ // Do offline backtrace.
+ std::unique_ptr<BacktraceMap> map(BacktraceMap::Create(pid, maps));
+ ASSERT_TRUE(map != nullptr);
+
+ std::unique_ptr<Backtrace> backtrace(
+ Backtrace::CreateOffline(pid, tid, map.get(), stack_info));
+ ASSERT_TRUE(backtrace != nullptr);
+
+ ucontext_t ucontext = GetUContextFromUnwContext(unw_context);
+ ASSERT_TRUE(backtrace->Unwind(0, &ucontext));
+
+
+ // Collect pc values of the call stack frames.
std::vector<uintptr_t> pc_values;
- OfflineBacktraceFunctionCall(function, &pc_values);
- ASSERT_FALSE(pc_values.empty());
- ASSERT_LE(pc_values.size(), static_cast<size_t>(MAX_BACKTRACE_FRAMES));
+ for (size_t i = 0; i < backtrace->NumFrames(); ++i) {
+ pc_values.push_back(backtrace->GetFrame(i)->pc);
+ }
size_t test_one_index = 0;
for (size_t i = 0; i < pc_values.size(); ++i) {
- if (FunctionNameForAddress(pc_values[i]) == "test_level_one") {
+ if (FunctionNameForAddress(pc_values[i], symbols) == "test_level_one") {
test_one_index = i;
break;
}
}
ASSERT_GE(test_one_index, 3u);
- ASSERT_EQ("test_level_one", FunctionNameForAddress(pc_values[test_one_index]));
- ASSERT_EQ("test_level_two", FunctionNameForAddress(pc_values[test_one_index - 1]));
- ASSERT_EQ("test_level_three", FunctionNameForAddress(pc_values[test_one_index - 2]));
- ASSERT_EQ("test_level_four", FunctionNameForAddress(pc_values[test_one_index - 3]));
+ ASSERT_EQ("test_level_one", FunctionNameForAddress(pc_values[test_one_index], symbols));
+ ASSERT_EQ("test_level_two", FunctionNameForAddress(pc_values[test_one_index - 1], symbols));
+ ASSERT_EQ("test_level_three", FunctionNameForAddress(pc_values[test_one_index - 2], symbols));
+ ASSERT_EQ("test_level_four", FunctionNameForAddress(pc_values[test_one_index - 3], symbols));
}
-TEST(libbacktrace, offline_max_trace) {
- std::function<int(void (*)(void*), void*)> function = std::bind(
- test_recursive_call, MAX_BACKTRACE_FRAMES + 10, std::placeholders::_1, std::placeholders::_2);
- std::vector<uintptr_t> pc_values;
- OfflineBacktraceFunctionCall(function, &pc_values);
- ASSERT_FALSE(pc_values.empty());
- ASSERT_EQ(static_cast<size_t>(MAX_BACKTRACE_FRAMES), pc_values.size());
- ASSERT_EQ("test_recursive_call", FunctionNameForAddress(pc_values.back()));
+TEST(libbacktrace, offline_eh_frame) {
+ BacktraceOfflineTest("libbacktrace_test_eh_frame.so");
+}
+
+TEST(libbacktrace, offline_debug_frame) {
+ BacktraceOfflineTest("libbacktrace_test_debug_frame.so");
+}
+
+TEST(libbacktrace, offline_gnu_debugdata) {
+ BacktraceOfflineTest("libbacktrace_test_gnu_debugdata.so");
+}
+
+TEST(libbacktrace, offline_arm_exidx) {
+ BacktraceOfflineTest("libbacktrace_test_arm_exidx.so");
}
diff --git a/libbacktrace/backtrace_testlib.c b/libbacktrace/backtrace_testlib.c
index d4d15db..6f6b535 100644
--- a/libbacktrace/backtrace_testlib.c
+++ b/libbacktrace/backtrace_testlib.c
@@ -14,6 +14,7 @@
* limitations under the License.
*/
+#include <libunwind.h>
#include <stdio.h>
int test_level_four(int one, int two, int three, int four,
@@ -53,3 +54,23 @@
}
return 0;
}
+
+typedef struct {
+ unw_context_t* unw_context;
+ volatile int* exit_flag;
+} GetContextArg;
+
+static void GetContextAndExit(void* data) {
+ GetContextArg* arg = (GetContextArg*)data;
+ unw_getcontext(arg->unw_context);
+ // Don't touch the stack anymore.
+ while (*arg->exit_flag == 0) {
+ }
+}
+
+void test_get_context_and_wait(unw_context_t* unw_context, volatile int* exit_flag) {
+ GetContextArg arg;
+ arg.unw_context = unw_context;
+ arg.exit_flag = exit_flag;
+ test_level_one(1, 2, 3, 4, GetContextAndExit, &arg);
+}
diff --git a/libbacktrace/testdata/aarch64/libbacktrace_test_eh_frame.so b/libbacktrace/testdata/aarch64/libbacktrace_test_eh_frame.so
new file mode 100755
index 0000000..880f337
--- /dev/null
+++ b/libbacktrace/testdata/aarch64/libbacktrace_test_eh_frame.so
Binary files differ
diff --git a/libbacktrace/testdata/aarch64/offline_testdata b/libbacktrace/testdata/aarch64/offline_testdata
new file mode 100644
index 0000000..ba44e09
--- /dev/null
+++ b/libbacktrace/testdata/aarch64/offline_testdata
@@ -0,0 +1,107 @@
+pid: 32438 tid: 32439
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+function: start: 0 end: 7fd5abcf7930 name: unknown_start
+function: start: 7fd5abcf7930 end: 7fd5abcf7990 name: test_level_four
+function: start: 7fd5abcf7990 end: 7fd5abcf79f0 name: test_level_three
+function: start: 7fd5abcf79f0 end: 7fd5abcf7a50 name: test_level_two
+function: start: 7fd5abcf7a50 end: 7fd5abcf7ab0 name: test_level_one
+function: start: 7fd5abcf7ab0 end: 7fd5abcf7b30 name: test_recursive_call
+function: start: 7fd5abcf7b30 end: ffffffffffffffff name: test_get_context_and_wait
+function: start: ffffffffffffffff end: ffffffffffffffff name: unknown_end
diff --git a/liblog/tests/liblog_test.cpp b/liblog/tests/liblog_test.cpp
index d80f8b2..d07d774 100644
--- a/liblog/tests/liblog_test.cpp
+++ b/liblog/tests/liblog_test.cpp
@@ -539,6 +539,7 @@
bool set_persist = false;
bool allow_security = false;
+ setuid(AID_SYSTEM); // only one that can read security buffer
if (__android_log_security()) {
allow_security = true;
} else {
@@ -1762,12 +1763,10 @@
#endif
}
-TEST(liblog, android_errorWriteWithInfoLog__android_logger_list_read__typical) {
#ifdef __ANDROID__
- const int TAG = 123456781;
- const char SUBTAG[] = "test-subtag";
- const int UID = -1;
- const int DATA_LEN = 200;
+static void android_errorWriteWithInfoLog_helper(int TAG, const char* SUBTAG,
+ int UID, const char* payload,
+ int DATA_LEN, int& count) {
struct logger_list *logger_list;
pid_t pid = getpid();
@@ -1775,100 +1774,17 @@
ASSERT_TRUE(NULL != (logger_list = android_logger_list_open(
LOG_ID_EVENTS, ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, 1000, pid)));
- ASSERT_LT(0, android_errorWriteWithInfoLog(
- TAG, SUBTAG, UID, max_payload_buf, DATA_LEN));
-
- sleep(2);
-
- int count = 0;
-
- for (;;) {
- log_msg log_msg;
- if (android_logger_list_read(logger_list, &log_msg) <= 0) {
- break;
- }
-
- char *eventData = log_msg.msg();
- if (!eventData) {
- continue;
- }
-
- // Tag
- int tag = get4LE(eventData);
- eventData += 4;
-
- if (tag != TAG) {
- continue;
- }
-
- // List type
- ASSERT_EQ(EVENT_TYPE_LIST, eventData[0]);
- eventData++;
-
- // Number of elements in list
- ASSERT_EQ(3, eventData[0]);
- eventData++;
-
- // Element #1: string type for subtag
- ASSERT_EQ(EVENT_TYPE_STRING, eventData[0]);
- eventData++;
-
- ASSERT_EQ((int) strlen(SUBTAG), get4LE(eventData));
- eventData +=4;
-
- if (memcmp(SUBTAG, eventData, strlen(SUBTAG))) {
- continue;
- }
- eventData += strlen(SUBTAG);
-
- // Element #2: int type for uid
- ASSERT_EQ(EVENT_TYPE_INT, eventData[0]);
- eventData++;
-
- ASSERT_EQ(UID, get4LE(eventData));
- eventData += 4;
-
- // Element #3: string type for data
- ASSERT_EQ(EVENT_TYPE_STRING, eventData[0]);
- eventData++;
-
- ASSERT_EQ(DATA_LEN, get4LE(eventData));
- eventData += 4;
-
- if (memcmp(max_payload_buf, eventData, DATA_LEN)) {
- continue;
- }
-
- ++count;
+ int retval_android_errorWriteWithinInfoLog = android_errorWriteWithInfoLog(
+ TAG, SUBTAG, UID, payload, DATA_LEN);
+ if (payload) {
+ ASSERT_LT(0, retval_android_errorWriteWithinInfoLog);
+ } else {
+ ASSERT_GT(0, retval_android_errorWriteWithinInfoLog);
}
- EXPECT_EQ(1, count);
-
- android_logger_list_close(logger_list);
-#else
- GTEST_LOG_(INFO) << "This test does nothing.\n";
-#endif
-}
-
-TEST(liblog, android_errorWriteWithInfoLog__android_logger_list_read__data_too_large) {
-#ifdef __ANDROID__
- const int TAG = 123456782;
- const char SUBTAG[] = "test-subtag";
- const int UID = -1;
- const int DATA_LEN = sizeof(max_payload_buf);
- struct logger_list *logger_list;
-
- pid_t pid = getpid();
-
- ASSERT_TRUE(NULL != (logger_list = android_logger_list_open(
- LOG_ID_EVENTS, ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, 1000, pid)));
-
- ASSERT_LT(0, android_errorWriteWithInfoLog(
- TAG, SUBTAG, UID, max_payload_buf, DATA_LEN));
-
sleep(2);
- int count = 0;
+ count = 0;
for (;;) {
log_msg log_msg;
@@ -1891,6 +1807,12 @@
continue;
}
+ if (!payload) {
+ // This tag should not have been written because the data was null
+ ++count;
+ break;
+ }
+
// List type
ASSERT_EQ(EVENT_TYPE_LIST, eventData[0]);
eventData++;
@@ -1903,13 +1825,15 @@
ASSERT_EQ(EVENT_TYPE_STRING, eventData[0]);
eventData++;
- ASSERT_EQ((int) strlen(SUBTAG), get4LE(eventData));
+ int subtag_len = strlen(SUBTAG);
+ if (subtag_len > 32) subtag_len = 32;
+ ASSERT_EQ(subtag_len, get4LE(eventData));
eventData +=4;
- if (memcmp(SUBTAG, eventData, strlen(SUBTAG))) {
+ if (memcmp(SUBTAG, eventData, subtag_len)) {
continue;
}
- eventData += strlen(SUBTAG);
+ eventData += subtag_len;
// Element #2: int type for uid
ASSERT_EQ(EVENT_TYPE_INT, eventData[0]);
@@ -1924,22 +1848,53 @@
size_t dataLen = get4LE(eventData);
eventData += 4;
+ if (DATA_LEN < 512) ASSERT_EQ(DATA_LEN, (int)dataLen);
- if (memcmp(max_payload_buf, eventData, dataLen)) {
+ if (memcmp(payload, eventData, dataLen)) {
continue;
}
- eventData += dataLen;
- // 4 bytes for the tag, and max_payload_buf should be truncated.
- ASSERT_LE(4 + 512, eventData - original); // worst expectations
- ASSERT_GT(4 + DATA_LEN, eventData - original); // must be truncated
+ if (DATA_LEN >= 512) {
+ eventData += dataLen;
+ // 4 bytes for the tag, and max_payload_buf should be truncated.
+ ASSERT_LE(4 + 512, eventData - original); // worst expectations
+ ASSERT_GT(4 + DATA_LEN, eventData - original); // must be truncated
+ }
++count;
}
- EXPECT_EQ(1, count);
-
android_logger_list_close(logger_list);
+}
+#endif
+
+TEST(liblog, android_errorWriteWithInfoLog__android_logger_list_read__typical) {
+#ifdef __ANDROID__
+ int count;
+ android_errorWriteWithInfoLog_helper(
+ 123456781,
+ "test-subtag",
+ -1,
+ max_payload_buf,
+ 200,
+ count);
+ EXPECT_EQ(1, count);
+#else
+ GTEST_LOG_(INFO) << "This test does nothing.\n";
+#endif
+}
+
+TEST(liblog, android_errorWriteWithInfoLog__android_logger_list_read__data_too_large) {
+#ifdef __ANDROID__
+ int count;
+ android_errorWriteWithInfoLog_helper(
+ 123456782,
+ "test-subtag",
+ -1,
+ max_payload_buf,
+ sizeof(max_payload_buf),
+ count);
+ EXPECT_EQ(1, count);
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
@@ -1947,49 +1902,15 @@
TEST(liblog, android_errorWriteWithInfoLog__android_logger_list_read__null_data) {
#ifdef __ANDROID__
- const int TAG = 123456783;
- const char SUBTAG[] = "test-subtag";
- const int UID = -1;
- const int DATA_LEN = 200;
- struct logger_list *logger_list;
-
- pid_t pid = getpid();
-
- ASSERT_TRUE(NULL != (logger_list = android_logger_list_open(
- LOG_ID_EVENTS, ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, 1000, pid)));
-
- ASSERT_GT(0, android_errorWriteWithInfoLog(
- TAG, SUBTAG, UID, NULL, DATA_LEN));
-
- sleep(2);
-
- int count = 0;
-
- for (;;) {
- log_msg log_msg;
- if (android_logger_list_read(logger_list, &log_msg) <= 0) {
- break;
- }
-
- char *eventData = log_msg.msg();
- if (!eventData) {
- continue;
- }
-
- // Tag
- int tag = get4LE(eventData);
- eventData += 4;
-
- if (tag == TAG) {
- // This tag should not have been written because the data was null
- count++;
- break;
- }
- }
-
+ int count;
+ android_errorWriteWithInfoLog_helper(
+ 123456783,
+ "test-subtag",
+ -1,
+ NULL,
+ 200,
+ count);
EXPECT_EQ(0, count);
-
- android_logger_list_close(logger_list);
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
@@ -1997,88 +1918,15 @@
TEST(liblog, android_errorWriteWithInfoLog__android_logger_list_read__subtag_too_long) {
#ifdef __ANDROID__
- const int TAG = 123456784;
- const char SUBTAG[] = "abcdefghijklmnopqrstuvwxyz now i know my abc";
- const int UID = -1;
- const int DATA_LEN = 200;
- struct logger_list *logger_list;
-
- pid_t pid = getpid();
-
- ASSERT_TRUE(NULL != (logger_list = android_logger_list_open(
- LOG_ID_EVENTS, ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, 1000, pid)));
-
- ASSERT_LT(0, android_errorWriteWithInfoLog(
- TAG, SUBTAG, UID, max_payload_buf, DATA_LEN));
-
- sleep(2);
-
- int count = 0;
-
- for (;;) {
- log_msg log_msg;
- if (android_logger_list_read(logger_list, &log_msg) <= 0) {
- break;
- }
-
- char *eventData = log_msg.msg();
- if (!eventData) {
- continue;
- }
-
- // Tag
- int tag = get4LE(eventData);
- eventData += 4;
-
- if (tag != TAG) {
- continue;
- }
-
- // List type
- ASSERT_EQ(EVENT_TYPE_LIST, eventData[0]);
- eventData++;
-
- // Number of elements in list
- ASSERT_EQ(3, eventData[0]);
- eventData++;
-
- // Element #1: string type for subtag
- ASSERT_EQ(EVENT_TYPE_STRING, eventData[0]);
- eventData++;
-
- // The subtag is longer than 32 and should be truncated to that.
- ASSERT_EQ(32, get4LE(eventData));
- eventData +=4;
-
- if (memcmp(SUBTAG, eventData, 32)) {
- continue;
- }
- eventData += 32;
-
- // Element #2: int type for uid
- ASSERT_EQ(EVENT_TYPE_INT, eventData[0]);
- eventData++;
-
- ASSERT_EQ(UID, get4LE(eventData));
- eventData += 4;
-
- // Element #3: string type for data
- ASSERT_EQ(EVENT_TYPE_STRING, eventData[0]);
- eventData++;
-
- ASSERT_EQ(DATA_LEN, get4LE(eventData));
- eventData += 4;
-
- if (memcmp(max_payload_buf, eventData, DATA_LEN)) {
- continue;
- }
-
- ++count;
- }
-
+ int count;
+ android_errorWriteWithInfoLog_helper(
+ 123456784,
+ "abcdefghijklmnopqrstuvwxyz now i know my abc",
+ -1,
+ max_payload_buf,
+ 200,
+ count);
EXPECT_EQ(1, count);
-
- android_logger_list_close(logger_list);
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
@@ -2092,10 +1940,8 @@
buf_write_test(max_payload_buf);
}
-TEST(liblog, android_errorWriteLog__android_logger_list_read__success) {
#ifdef __ANDROID__
- const int TAG = 123456785;
- const char SUBTAG[] = "test-subtag";
+static void android_errorWriteLog_helper(int TAG, const char *SUBTAG, int& count) {
struct logger_list *logger_list;
pid_t pid = getpid();
@@ -2103,11 +1949,16 @@
ASSERT_TRUE(NULL != (logger_list = android_logger_list_open(
LOG_ID_EVENTS, ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, 1000, pid)));
- ASSERT_LT(0, android_errorWriteLog(TAG, SUBTAG));
+ int retval_android_errorWriteLog = android_errorWriteLog(TAG, SUBTAG);
+ if (SUBTAG) {
+ ASSERT_LT(0, retval_android_errorWriteLog);
+ } else {
+ ASSERT_GT(0, retval_android_errorWriteLog);
+ }
sleep(2);
- int count = 0;
+ count = 0;
for (;;) {
log_msg log_msg;
@@ -2128,6 +1979,12 @@
continue;
}
+ if (!SUBTAG) {
+ // This tag should not have been written because the data was null
+ ++count;
+ break;
+ }
+
// List type
ASSERT_EQ(EVENT_TYPE_LIST, eventData[0]);
eventData++;
@@ -2149,9 +2006,15 @@
++count;
}
- EXPECT_EQ(1, count);
-
android_logger_list_close(logger_list);
+}
+#endif
+
+TEST(liblog, android_errorWriteLog__android_logger_list_read__success) {
+#ifdef __ANDROID__
+ int count;
+ android_errorWriteLog_helper(123456785, "test-subtag", count);
+ EXPECT_EQ(1, count);
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
@@ -2159,45 +2022,9 @@
TEST(liblog, android_errorWriteLog__android_logger_list_read__null_subtag) {
#ifdef __ANDROID__
- const int TAG = 123456786;
- struct logger_list *logger_list;
-
- pid_t pid = getpid();
-
- ASSERT_TRUE(NULL != (logger_list = android_logger_list_open(
- LOG_ID_EVENTS, ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, 1000, pid)));
-
- ASSERT_GT(0, android_errorWriteLog(TAG, NULL));
-
- sleep(2);
-
- int count = 0;
-
- for (;;) {
- log_msg log_msg;
- if (android_logger_list_read(logger_list, &log_msg) <= 0) {
- break;
- }
-
- char *eventData = log_msg.msg();
- if (!eventData) {
- continue;
- }
-
- // Tag
- int tag = get4LE(eventData);
- eventData += 4;
-
- if (tag == TAG) {
- // This tag should not have been written because the data was null
- count++;
- break;
- }
- }
-
+ int count;
+ android_errorWriteLog_helper(123456786, NULL, count);
EXPECT_EQ(0, count);
-
- android_logger_list_close(logger_list);
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
diff --git a/libsync/sync.c b/libsync/sync.c
index 169dc36..6281b20 100644
--- a/libsync/sync.c
+++ b/libsync/sync.c
@@ -21,8 +21,6 @@
#include <stdint.h>
#include <string.h>
-#include <linux/sw_sync.h>
-
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
@@ -42,6 +40,16 @@
#define SYNC_IOC_MERGE _IOWR(SYNC_IOC_MAGIC, 1, struct sync_merge_data)
#define SYNC_IOC_FENCE_INFO _IOWR(SYNC_IOC_MAGIC, 2, struct sync_fence_info_data)
+struct sw_sync_create_fence_data {
+ __u32 value;
+ char name[32];
+ __s32 fence;
+};
+
+#define SW_SYNC_IOC_MAGIC 'W'
+#define SW_SYNC_IOC_CREATE_FENCE _IOWR(SW_SYNC_IOC_MAGIC, 0, struct sw_sync_create_fence_data)
+#define SW_SYNC_IOC_INC _IOW(SW_SYNC_IOC_MAGIC, 1, __u32)
+
int sync_wait(int fd, int timeout)
{
__s32 to = timeout;
diff --git a/logd/LogBufferElement.cpp b/logd/LogBufferElement.cpp
index f5c60c7..ec91f2a 100644
--- a/logd/LogBufferElement.cpp
+++ b/logd/LogBufferElement.cpp
@@ -89,7 +89,7 @@
size_t name_len = strlen(name);
// KISS: ToDo: Only checks prefix truncated, not suffix, or both
if ((retval_len < name_len)
- && !fast<strcmp>(retval, name + name_len - retval_len)) {
+ && !fastcmp<strcmp>(retval, name + name_len - retval_len)) {
free(retval);
retval = name;
} else {
diff --git a/logd/LogKlog.cpp b/logd/LogKlog.cpp
index 7073535..0b49fc1 100644
--- a/logd/LogKlog.cpp
+++ b/logd/LogKlog.cpp
@@ -321,7 +321,7 @@
}
--len;
} while (*s++ != c);
- } while (fast<memcmp>(s, needle, needleLen));
+ } while (fastcmp<memcmp>(s, needle, needleLen));
s--;
}
return s;
@@ -640,7 +640,7 @@
static const char infoBrace[] = "[INFO]";
static const size_t infoBraceLen = strlen(infoBrace);
- if ((taglen >= infoBraceLen) && !fast<strncmp>(p, infoBrace, infoBraceLen)) {
+ if ((taglen >= infoBraceLen) && !fastcmp<strncmp>(p, infoBrace, infoBraceLen)) {
// <PRI>[<TIME>] "[INFO]"<tag> ":" message
bt = p + infoBraceLen;
taglen -= infoBraceLen;
@@ -675,7 +675,7 @@
p = cp + 1;
} else if ((taglen > size) && (tolower(*bt) == tolower(*cp))) {
// clean up any tag stutter
- if (!fast<strncasecmp>(bt + 1, cp + 1, size - 1)) { // no match
+ if (!fastcmp<strncasecmp>(bt + 1, cp + 1, size - 1)) { // no match
// <PRI>[<TIME>] <tag> <tag> : message
// <PRI>[<TIME>] <tag> <tag>: message
// <PRI>[<TIME>] <tag> '<tag>.<num>' : message
@@ -697,8 +697,8 @@
static const char host[] = "_host";
static const size_t hostlen = strlen(host);
if ((size > hostlen) &&
- !fast<strncmp>(bt + size - hostlen, host, hostlen) &&
- !fast<strncmp>(bt + 1, cp + 1, size - hostlen - 1)) {
+ !fastcmp<strncmp>(bt + size - hostlen, host, hostlen) &&
+ !fastcmp<strncmp>(bt + 1, cp + 1, size - hostlen - 1)) {
const char *b = cp;
cp += size - hostlen;
taglen -= size - hostlen;
@@ -746,10 +746,10 @@
// register names like x18 but not driver names like en0
|| ((size == 3) && (isdigit(tag[1]) && isdigit(tag[2])))
// blacklist
- || ((size == cpuLen) && !fast<strncmp>(tag, cpu, cpuLen))
- || ((size == warningLen) && !fast<strncasecmp>(tag, warning, warningLen))
- || ((size == errorLen) && !fast<strncasecmp>(tag, error, errorLen))
- || ((size == infoLen) && !fast<strncasecmp>(tag, info, infoLen))) {
+ || ((size == cpuLen) && !fastcmp<strncmp>(tag, cpu, cpuLen))
+ || ((size == warningLen) && !fastcmp<strncasecmp>(tag, warning, warningLen))
+ || ((size == errorLen) && !fastcmp<strncasecmp>(tag, error, errorLen))
+ || ((size == infoLen) && !fastcmp<strncasecmp>(tag, info, infoLen))) {
p = start;
etag = tag = "";
}
@@ -761,7 +761,7 @@
const char *mp = strnrchr(tag, ']', taglen);
if (mp && (++mp < etag)) {
size_t s = etag - mp;
- if (((s + s) < taglen) && !fast<memcmp>(mp, mp - 1 - s, s)) {
+ if (((s + s) < taglen) && !fastcmp<memcmp>(mp, mp - 1 - s, s)) {
taglen = mp - tag;
}
}
diff --git a/logd/LogReader.cpp b/logd/LogReader.cpp
index 61d4c49..1b50b4e 100644
--- a/logd/LogReader.cpp
+++ b/logd/LogReader.cpp
@@ -108,7 +108,7 @@
}
bool nonBlock = false;
- if (!fast<strncmp>(buffer, "dumpAndClose", 12)) {
+ if (!fastcmp<strncmp>(buffer, "dumpAndClose", 12)) {
// Allow writer to get some cycles, and wait for pending notifications
sched_yield();
LogTimeEntry::lock();
diff --git a/logd/LogStatistics.cpp b/logd/LogStatistics.cpp
index d4b48ef..bab87ba 100644
--- a/logd/LogStatistics.cpp
+++ b/logd/LogStatistics.cpp
@@ -53,7 +53,7 @@
if (ret > 0) {
buffer[sizeof(buffer)-1] = '\0';
// frameworks intermediate state
- if (fast<strcmp>(buffer, "<pre-initialized>")) {
+ if (fastcmp<strcmp>(buffer, "<pre-initialized>")) {
retval = strdup(buffer);
}
}
@@ -209,7 +209,7 @@
if (nameTmp) {
if (!name) {
name = strdup(nameTmp);
- } else if (fast<strcmp>(name, nameTmp)) {
+ } else if (fastcmp<strcmp>(name, nameTmp)) {
free(const_cast<char *>(name));
name = NULL;
break;
diff --git a/logd/LogStatistics.h b/logd/LogStatistics.h
index 1f598af..cb7ae2b 100644
--- a/logd/LogStatistics.h
+++ b/logd/LogStatistics.h
@@ -307,7 +307,7 @@
const char*getName() const { return name; }
inline void add(pid_t newPid) {
- if (name && !fast<strncmp>(name, "zygote", 6)) {
+ if (name && !fastcmp<strncmp>(name, "zygote", 6)) {
free(name);
name = NULL;
}
@@ -368,7 +368,7 @@
const char*getName() const { return name; }
inline void add(pid_t incomingTid) {
- if (name && !fast<strncmp>(name, "zygote", 6)) {
+ if (name && !fastcmp<strncmp>(name, "zygote", 6)) {
free(name);
name = NULL;
}
diff --git a/logd/LogUtils.h b/logd/LogUtils.h
index 44ac742..ec68062 100644
--- a/logd/LogUtils.h
+++ b/logd/LogUtils.h
@@ -20,6 +20,7 @@
#include <sys/cdefs.h>
#include <sys/types.h>
+#include <utils/FastStrcmp.h>
#include <private/android_logger.h>
#include <sysutils/SocketClient.h>
@@ -50,21 +51,4 @@
(id == LOG_ID_RADIO) || (id == LOG_ID_EVENTS);
}
-template <int (*cmp)(const char *l, const char *r, const size_t s)>
-static inline int fast(const char *l, const char *r, const size_t s) {
- return (*l != *r) || cmp(l + 1, r + 1, s - 1);
-}
-
-template <int (*cmp)(const void *l, const void *r, const size_t s)>
-static inline int fast(const void *lv, const void *rv, const size_t s) {
- const char *l = static_cast<const char *>(lv);
- const char *r = static_cast<const char *>(rv);
- return (*l != *r) || cmp(l + 1, r + 1, s - 1);
-}
-
-template <int (*cmp)(const char *l, const char *r)>
-static inline int fast(const char *l, const char *r) {
- return (*l != *r) || cmp(l + 1, r + 1);
-}
-
#endif // _LOGD_LOG_UTILS_H__