Merge "WA: Fix adb wait-for-device command"
diff --git a/crash_reporter/Android.mk b/crash_reporter/Android.mk
index 565963c..bc023b0 100644
--- a/crash_reporter/Android.mk
+++ b/crash_reporter/Android.mk
@@ -41,7 +41,6 @@
LOCAL_MODULE := libcrash
LOCAL_CPP_EXTENSION := $(crash_reporter_cpp_extension)
LOCAL_C_INCLUDES := $(crash_reporter_includes)
-LOCAL_RTTI_FLAG := -frtti
LOCAL_SHARED_LIBRARIES := libchrome \
libbinder \
libbrillo \
@@ -63,7 +62,6 @@
crash_sender \
crash_server
LOCAL_INIT_RC := crash_reporter.rc
-LOCAL_RTTI_FLAG := -frtti
LOCAL_SHARED_LIBRARIES := libchrome \
libbinder \
libbrillo \
diff --git a/debuggerd/Android.mk b/debuggerd/Android.mk
index de0f943..9e4f1f7 100644
--- a/debuggerd/Android.mk
+++ b/debuggerd/Android.mk
@@ -62,7 +62,7 @@
LOCAL_SRC_FILES_x86_64 := x86_64/crashglue.S
LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
LOCAL_MODULE_TAGS := optional
-LOCAL_CFLAGS += -fstack-protector-all -Werror -Wno-free-nonheap-object
+LOCAL_CFLAGS += -fstack-protector-all -Werror -Wno-free-nonheap-object -Wno-date-time
#LOCAL_FORCE_STATIC_EXECUTABLE := true
LOCAL_SHARED_LIBRARIES := libcutils liblog libc
diff --git a/debuggerd/debuggerd.cpp b/debuggerd/debuggerd.cpp
index 0afa895..58b629b 100644
--- a/debuggerd/debuggerd.cpp
+++ b/debuggerd/debuggerd.cpp
@@ -24,11 +24,12 @@
#include <dirent.h>
#include <time.h>
-#include <sys/ptrace.h>
-#include <sys/wait.h>
#include <elf.h>
-#include <sys/stat.h>
#include <sys/poll.h>
+#include <sys/prctl.h>
+#include <sys/ptrace.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
#include <selinux/android.h>
@@ -363,6 +364,37 @@
}
#endif
+ // Fork a child to handle the rest of the request.
+ pid_t fork_pid = fork();
+ if (fork_pid == -1) {
+ ALOGE("debuggerd: failed to fork: %s\n", strerror(errno));
+ return;
+ } else if (fork_pid != 0) {
+ waitpid(fork_pid, nullptr, 0);
+ return;
+ }
+
+ // Open the tombstone file if we need it.
+ std::string tombstone_path;
+ int tombstone_fd = -1;
+ switch (request.action) {
+ case DEBUGGER_ACTION_DUMP_TOMBSTONE:
+ case DEBUGGER_ACTION_CRASH:
+ tombstone_fd = open_tombstone(&tombstone_path);
+ if (tombstone_fd == -1) {
+ ALOGE("debuggerd: failed to open tombstone file: %s\n", strerror(errno));
+ exit(1);
+ }
+ break;
+
+ case DEBUGGER_ACTION_DUMP_BACKTRACE:
+ break;
+
+ default:
+ ALOGE("debuggerd: unexpected request action: %d", request.action);
+ exit(1);
+ }
+
// At this point, the thread that made the request is blocked in
// a read() call. If the thread has crashed, then this gives us
// time to PTRACE_ATTACH to it before it has a chance to really fault.
@@ -374,19 +406,32 @@
// See details in bionic/libc/linker/debugger.c, in function
// debugger_signal_handler().
if (ptrace(PTRACE_ATTACH, request.tid, 0, 0)) {
- ALOGE("ptrace attach failed: %s\n", strerror(errno));
- return;
+ ALOGE("debuggerd: ptrace attach failed: %s\n", strerror(errno));
+ exit(1);
+ }
+
+ // Generate the backtrace map before dropping privileges.
+ std::unique_ptr<BacktraceMap> backtrace_map(BacktraceMap::Create(request.pid));
+
+ // Now that we've done everything that requires privileges, we can drop them.
+ if (setresgid(AID_DEBUGGERD, AID_DEBUGGERD, AID_DEBUGGERD) != 0) {
+ ALOGE("debuggerd: failed to setresgid");
+ exit(1);
+ }
+
+ if (setresuid(AID_DEBUGGERD, AID_DEBUGGERD, AID_DEBUGGERD) != 0) {
+ ALOGE("debuggerd: failed to setresuid");
+ exit(1);
}
bool detach_failed = false;
bool tid_unresponsive = false;
bool attach_gdb = should_attach_gdb(&request);
if (TEMP_FAILURE_RETRY(write(fd, "\0", 1)) != 1) {
- ALOGE("failed responding to client: %s\n", strerror(errno));
- return;
+ ALOGE("debuggerd: failed to respond to client: %s\n", strerror(errno));
+ exit(1);
}
- std::unique_ptr<char> tombstone_path;
int total_sleep_time_usec = 0;
while (true) {
int signal = wait_for_sigstop(request.tid, &total_sleep_time_usec, &detach_failed);
@@ -399,9 +444,9 @@
case SIGSTOP:
if (request.action == DEBUGGER_ACTION_DUMP_TOMBSTONE) {
ALOGV("stopped -- dumping to tombstone\n");
- tombstone_path.reset(engrave_tombstone(
- request.pid, request.tid, signal, request.original_si_code, request.abort_msg_address,
- true, &detach_failed, &total_sleep_time_usec));
+ engrave_tombstone(tombstone_fd, backtrace_map.get(), request.pid, request.tid, signal,
+ request.original_si_code, request.abort_msg_address, true,
+ &detach_failed, &total_sleep_time_usec);
} else if (request.action == DEBUGGER_ACTION_DUMP_BACKTRACE) {
ALOGV("stopped -- dumping to fd\n");
dump_backtrace(fd, -1, request.pid, request.tid, &detach_failed, &total_sleep_time_usec);
@@ -409,7 +454,7 @@
ALOGV("stopped -- continuing\n");
status = ptrace(PTRACE_CONT, request.tid, 0, 0);
if (status) {
- ALOGE("ptrace continue failed: %s\n", strerror(errno));
+ ALOGE("debuggerd: ptrace continue failed: %s\n", strerror(errno));
}
continue; // loop again
}
@@ -432,21 +477,21 @@
kill(request.pid, SIGSTOP);
// don't dump sibling threads when attaching to GDB because it
// makes the process less reliable, apparently...
- tombstone_path.reset(engrave_tombstone(
- request.pid, request.tid, signal, request.original_si_code, request.abort_msg_address,
- !attach_gdb, &detach_failed, &total_sleep_time_usec));
+ engrave_tombstone(tombstone_fd, backtrace_map.get(), request.pid, request.tid, signal,
+ request.original_si_code, request.abort_msg_address, !attach_gdb,
+ &detach_failed, &total_sleep_time_usec);
break;
default:
- ALOGE("process stopped due to unexpected signal %d\n", signal);
+ ALOGE("debuggerd: process stopped due to unexpected signal %d\n", signal);
break;
}
break;
}
if (request.action == DEBUGGER_ACTION_DUMP_TOMBSTONE) {
- if (tombstone_path) {
- write(fd, tombstone_path.get(), strlen(tombstone_path.get()));
+ if (!tombstone_path.empty()) {
+ write(fd, tombstone_path.c_str(), tombstone_path.length());
}
}
@@ -457,7 +502,7 @@
kill(request.pid, SIGSTOP);
}
if (ptrace(PTRACE_DETACH, request.tid, 0, 0)) {
- ALOGE("ptrace detach from %d failed: %s", request.tid, strerror(errno));
+ ALOGE("debuggerd: ptrace detach from %d failed: %s", request.tid, strerror(errno));
detach_failed = true;
} else if (attach_gdb) {
// if debug.db.uid is set, its value indicates if we should wait
@@ -468,16 +513,9 @@
}
}
- // resume stopped process (so it can crash in peace).
+ // Resume the stopped process so it can crash in peace, and exit.
kill(request.pid, SIGCONT);
-
- // If we didn't successfully detach, we're still the parent, and the
- // actual parent won't receive a death notification via wait(2). At this point
- // there's not much we can do about that.
- if (detach_failed) {
- ALOGE("debuggerd committing suicide to free the zombie!\n");
- kill(getpid(), SIGKILL);
- }
+ exit(0);
}
static int do_server() {
diff --git a/debuggerd/tombstone.cpp b/debuggerd/tombstone.cpp
index 5f422e3..b2f203d 100644
--- a/debuggerd/tombstone.cpp
+++ b/debuggerd/tombstone.cpp
@@ -632,7 +632,7 @@
}
// Dumps all information about the specified pid to the tombstone.
-static bool dump_crash(log_t* log, pid_t pid, pid_t tid, int signal, int si_code,
+static bool dump_crash(log_t* log, BacktraceMap* map, pid_t pid, pid_t tid, int signal, int si_code,
uintptr_t abort_msg_address, bool dump_sibling_threads,
int* total_sleep_time_usec) {
// don't copy log messages to tombstone unless this is a dev device
@@ -659,8 +659,7 @@
dump_signal_info(log, tid, signal, si_code);
}
- std::unique_ptr<BacktraceMap> map(BacktraceMap::Create(pid));
- std::unique_ptr<Backtrace> backtrace(Backtrace::Create(pid, tid, map.get()));
+ std::unique_ptr<Backtrace> backtrace(Backtrace::Create(pid, tid, map));
dump_abort_message(backtrace.get(), log, abort_msg_address);
dump_registers(log, tid);
if (backtrace->Unwind(0)) {
@@ -669,8 +668,8 @@
ALOGE("Unwind failed: pid = %d, tid = %d", pid, tid);
}
dump_memory_and_code(log, backtrace.get());
- if (map.get() != nullptr) {
- dump_all_maps(backtrace.get(), map.get(), log, tid);
+ if (map) {
+ dump_all_maps(backtrace.get(), map, log, tid);
}
if (want_logs) {
@@ -679,7 +678,7 @@
bool detach_failed = false;
if (dump_sibling_threads) {
- detach_failed = dump_sibling_thread_report(log, pid, tid, total_sleep_time_usec, map.get());
+ detach_failed = dump_sibling_thread_report(log, pid, tid, total_sleep_time_usec, map);
}
if (want_logs) {
@@ -698,53 +697,57 @@
return detach_failed;
}
-// find_and_open_tombstone - find an available tombstone slot, if any, of the
+// open_tombstone - find an available tombstone slot, if any, of the
// form tombstone_XX where XX is 00 to MAX_TOMBSTONES-1, inclusive. If no
// file is available, we reuse the least-recently-modified file.
-//
-// Returns the path of the tombstone file, allocated using malloc(). Caller must free() it.
-static char* find_and_open_tombstone(int* fd) {
+int open_tombstone(std::string* out_path) {
// In a single pass, find an available slot and, in case none
// exist, find and record the least-recently-modified file.
char path[128];
+ int fd = -1;
int oldest = -1;
struct stat oldest_sb;
for (int i = 0; i < MAX_TOMBSTONES; i++) {
snprintf(path, sizeof(path), TOMBSTONE_TEMPLATE, i);
struct stat sb;
- if (!stat(path, &sb)) {
+ if (stat(path, &sb) == 0) {
if (oldest < 0 || sb.st_mtime < oldest_sb.st_mtime) {
oldest = i;
oldest_sb.st_mtime = sb.st_mtime;
}
continue;
}
- if (errno != ENOENT)
- continue;
+ if (errno != ENOENT) continue;
- *fd = open(path, O_CREAT | O_EXCL | O_WRONLY | O_NOFOLLOW | O_CLOEXEC, 0600);
- if (*fd < 0)
- continue; // raced ?
+ fd = open(path, O_CREAT | O_EXCL | O_WRONLY | O_NOFOLLOW | O_CLOEXEC, 0600);
+ if (fd < 0) continue; // raced ?
- fchown(*fd, AID_SYSTEM, AID_SYSTEM);
- return strdup(path);
+ if (out_path) {
+ *out_path = path;
+ }
+ fchown(fd, AID_SYSTEM, AID_SYSTEM);
+ return fd;
}
if (oldest < 0) {
- ALOGE("Failed to find a valid tombstone, default to using tombstone 0.\n");
+ ALOGE("debuggerd: failed to find a valid tombstone, default to using tombstone 0.\n");
oldest = 0;
}
// we didn't find an available file, so we clobber the oldest one
snprintf(path, sizeof(path), TOMBSTONE_TEMPLATE, oldest);
- *fd = open(path, O_CREAT | O_TRUNC | O_WRONLY | O_NOFOLLOW | O_CLOEXEC, 0600);
- if (*fd < 0) {
- ALOGE("failed to open tombstone file '%s': %s\n", path, strerror(errno));
- return NULL;
+ fd = open(path, O_CREAT | O_TRUNC | O_WRONLY | O_NOFOLLOW | O_CLOEXEC, 0600);
+ if (fd < 0) {
+ ALOGE("debuggerd: failed to open tombstone file '%s': %s\n", path, strerror(errno));
+ return -1;
}
- fchown(*fd, AID_SYSTEM, AID_SYSTEM);
- return strdup(path);
+
+ if (out_path) {
+ *out_path = path;
+ }
+ fchown(fd, AID_SYSTEM, AID_SYSTEM);
+ return fd;
}
static int activity_manager_connect() {
@@ -777,49 +780,27 @@
return amfd;
}
-char* engrave_tombstone(pid_t pid, pid_t tid, int signal, int original_si_code,
- uintptr_t abort_msg_address, bool dump_sibling_threads,
- bool* detach_failed, int* total_sleep_time_usec) {
-
+void engrave_tombstone(int tombstone_fd, BacktraceMap* map, pid_t pid, pid_t tid, int signal,
+ int original_si_code, uintptr_t abort_msg_address, bool dump_sibling_threads,
+ bool* detach_failed, int* total_sleep_time_usec) {
log_t log;
log.current_tid = tid;
log.crashed_tid = tid;
- if ((mkdir(TOMBSTONE_DIR, 0755) == -1) && (errno != EEXIST)) {
- ALOGE("failed to create %s: %s\n", TOMBSTONE_DIR, strerror(errno));
- }
-
- if (chown(TOMBSTONE_DIR, AID_SYSTEM, AID_SYSTEM) == -1) {
- ALOGE("failed to change ownership of %s: %s\n", TOMBSTONE_DIR, strerror(errno));
- }
-
- int fd = -1;
- char* path = NULL;
- if (selinux_android_restorecon(TOMBSTONE_DIR, 0) == 0) {
- path = find_and_open_tombstone(&fd);
- } else {
- ALOGE("Failed to restore security context, not writing tombstone.\n");
- }
-
- if (fd < 0) {
- ALOGE("Skipping tombstone write, nothing to do.\n");
+ if (tombstone_fd < 0) {
+ ALOGE("debuggerd: skipping tombstone write, nothing to do.\n");
*detach_failed = false;
- return NULL;
+ return;
}
- log.tfd = fd;
+ log.tfd = tombstone_fd;
// Preserve amfd since it can be modified through the calls below without
// being closed.
int amfd = activity_manager_connect();
log.amfd = amfd;
- *detach_failed = dump_crash(&log, pid, tid, signal, original_si_code, abort_msg_address,
+ *detach_failed = dump_crash(&log, map, pid, tid, signal, original_si_code, abort_msg_address,
dump_sibling_threads, total_sleep_time_usec);
- _LOG(&log, logtype::BACKTRACE, "\nTombstone written to: %s\n", path);
-
- // Either of these file descriptors can be -1, any error is ignored.
+ // This file descriptor can be -1, any error is ignored.
close(amfd);
- close(fd);
-
- return path;
}
diff --git a/debuggerd/tombstone.h b/debuggerd/tombstone.h
index 7e2b2fe..5f2d239 100644
--- a/debuggerd/tombstone.h
+++ b/debuggerd/tombstone.h
@@ -17,15 +17,23 @@
#ifndef _DEBUGGERD_TOMBSTONE_H
#define _DEBUGGERD_TOMBSTONE_H
-#include <stddef.h>
#include <stdbool.h>
+#include <stddef.h>
#include <sys/types.h>
+#include <string>
+
+class BacktraceMap;
+
+/* Create and open a tombstone file for writing.
+ * Returns a writable file descriptor, or -1 with errno set appropriately.
+ * If out_path is non-null, *out_path is set to the path of the tombstone file.
+ */
+int open_tombstone(std::string* path);
/* Creates a tombstone file and writes the crash dump to it.
* Returns the path of the tombstone, which must be freed using free(). */
-char* engrave_tombstone(pid_t pid, pid_t tid, int signal, int original_si_code,
- uintptr_t abort_msg_address,
- bool dump_sibling_threads, bool* detach_failed,
- int* total_sleep_time_usec);
+void engrave_tombstone(int tombstone_fd, BacktraceMap* map, pid_t pid, pid_t tid, int signal,
+ int original_si_code, uintptr_t abort_msg_address, bool dump_sibling_threads,
+ bool* detach_failed, int* total_sleep_time_usec);
#endif // _DEBUGGERD_TOMBSTONE_H
diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index 5b66366..bd17485 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -282,8 +282,6 @@
" getvar <variable> Display a bootloader variable.\n"
" set_active <suffix> Sets the active slot. If slots are\n"
" not supported, this does nothing.\n"
- " note: suffixes starting with a '-'\n"
- " must use set_active -- <suffix>\n"
" boot <kernel> [ <ramdisk> [ <second> ] ] Download and boot kernel.\n"
" flash:raw boot <kernel> [ <ramdisk> [ <second> ] ]\n"
" Create bootimage and flash it.\n"
@@ -320,9 +318,10 @@
" device supports slots. This will be\n"
" added to all partition names that use\n"
" slots. 'all' can be given to refer\n"
- " to all slots. If this is not given,\n"
- " slotted partitions will default to\n"
- " the current active slot.\n"
+ " to all slots. 'other' can be given to\n"
+ " refer to a non-current slot. If this\n"
+ " flag is not used, slotted partitions\n"
+ " will default to the current active slot.\n"
" -a, --set-active[=<suffix>] Sets the active slot. If no suffix is\n"
" provided, this will default to the value\n"
" given by --slot. If slots are not\n"
@@ -739,12 +738,28 @@
if (!suffixes.empty()) {
return suffixes[0];
} else {
- fprintf(stderr, "No known slots.\n");
- exit(1);
+ die("No known slots.");
}
}
}
+
std::vector<std::string> suffixes = get_suffixes(transport);
+
+ if (strcmp(slot, "other") == 0) {
+ std::string current_slot;
+ if (!fb_getvar(transport, "current-slot", ¤t_slot)) {
+ die("Failed to identify current slot.");
+ }
+ if (!suffixes.empty()) {
+ for (size_t i = 0; i < suffixes.size(); i++) {
+ if (current_slot == suffixes[i])
+ return suffixes[(i+1)%suffixes.size()];
+ }
+ } else {
+ die("No known slots.");
+ }
+ }
+
for (const std::string &suffix : suffixes) {
if (suffix == slot)
return slot;
@@ -1411,7 +1426,6 @@
std::string slot = verify_slot(transport, argv[1], false);
fb_set_active(slot.c_str());
skip(2);
- wants_reboot = true;
} else if(!strcmp(*argv, "oem")) {
argc = do_oem_command(argc, argv);
} else if(!strcmp(*argv, "flashing")) {
diff --git a/include/binderwrapper/binder_wrapper.h b/include/binderwrapper/binder_wrapper.h
index 921c4ed..ccda825 100644
--- a/include/binderwrapper/binder_wrapper.h
+++ b/include/binderwrapper/binder_wrapper.h
@@ -30,6 +30,7 @@
class IBinder;
// Wraps libbinder to make it testable.
+// NOTE: Static methods of this class are not thread-safe.
class BinderWrapper {
public:
virtual ~BinderWrapper() {}
@@ -50,6 +51,10 @@
// InitForTesting().
static BinderWrapper* Get();
+ // Returns the singleton instance if it was previously created by Create() or
+ // set by InitForTesting(), or creates a new one by calling Create().
+ static BinderWrapper* GetOrCreateInstance();
+
// Gets the binder for communicating with the service identified by
// |service_name|, returning null immediately if it doesn't exist.
virtual sp<IBinder> GetService(const std::string& service_name) = 0;
diff --git a/include/private/android_filesystem_config.h b/include/private/android_filesystem_config.h
index bbe4486..9876e34 100644
--- a/include/private/android_filesystem_config.h
+++ b/include/private/android_filesystem_config.h
@@ -83,6 +83,10 @@
#define AID_TLSDATE 1039 /* tlsdate unprivileged user */
#define AID_MEDIA_EX 1040 /* mediaextractor process */
#define AID_AUDIOSERVER 1041 /* audioserver process */
+#define AID_METRICS_COLL 1042 /* metrics_collector process */
+#define AID_METRICSD 1043 /* metricsd process */
+#define AID_WEBSERV 1044 /* webservd process */
+#define AID_DEBUGGERD 1045 /* debuggerd unprivileged user */
#define AID_SHELL 2000 /* adb and debug shell user */
#define AID_CACHE 2001 /* cache access */
@@ -184,6 +188,10 @@
{ "tlsdate", AID_TLSDATE, },
{ "mediaex", AID_MEDIA_EX, },
{ "audioserver", AID_AUDIOSERVER, },
+ { "metrics_coll", AID_METRICS_COLL },
+ { "metricsd", AID_METRICSD },
+ { "webserv", AID_WEBSERV },
+ { "debuggerd", AID_DEBUGGERD, },
{ "shell", AID_SHELL, },
{ "cache", AID_CACHE, },
diff --git a/libbinderwrapper/binder_wrapper.cc b/libbinderwrapper/binder_wrapper.cc
index 0b5ff96..ca9c1df 100644
--- a/libbinderwrapper/binder_wrapper.cc
+++ b/libbinderwrapper/binder_wrapper.cc
@@ -50,4 +50,11 @@
return instance_;
}
+// static
+BinderWrapper* BinderWrapper::GetOrCreateInstance() {
+ if (!instance_)
+ instance_ = new RealBinderWrapper();
+ return instance_;
+}
+
} // namespace android
diff --git a/liblog/Android.bp b/liblog/Android.bp
index 878feb8..ee883f0 100644
--- a/liblog/Android.bp
+++ b/liblog/Android.bp
@@ -71,6 +71,7 @@
// $(LOCAL_PATH)/event.logtags)
// so make sure we do not regret hard-coding it as follows:
"-DLIBLOG_LOG_TAG=1005",
+ "-DSNET_EVENT_LOG_TAG=1397638484",
],
compile_multilib: "both",
stl: "none",
diff --git a/liblog/Android.mk b/liblog/Android.mk
index 4ab5006..a183db8 100644
--- a/liblog/Android.mk
+++ b/liblog/Android.mk
@@ -22,7 +22,7 @@
# 's/^\([0-9]*\)[ \t]*liblog[ \t].*/-DLIBLOG_LOG_TAG=\1/p' \
# $(LOCAL_PATH)/event.logtags)
# so make sure we do not regret hard-coding it as follows:
-liblog_cflags := -DLIBLOG_LOG_TAG=1005 -DSNET_EVENT_LOG_TAG=1397638484
+liblog_cflags := -DLIBLOG_LOG_TAG=1005
liblog_host_sources := logd_write.c log_event_write.c fake_log_device.c event.logtags
liblog_target_sources := logd_write.c log_event_write.c event_tag_map.c log_time.cpp log_is_loggable.c
diff --git a/liblog/logd_write.c b/liblog/logd_write.c
index ec86e6b..5406c50 100644
--- a/liblog/logd_write.c
+++ b/liblog/logd_write.c
@@ -221,48 +221,50 @@
return -EPERM;
}
} else if (log_id == LOG_ID_EVENTS) {
+ static atomic_uintptr_t map;
+ int ret;
+ const char *tag;
+ EventTagMap *m, *f;
+
if (vec[0].iov_len < 4) {
return -EINVAL;
}
- if (((uint32_t *)vec[0].iov_base)[0] != htole32(SNET_EVENT_LOG_TAG)) {
- static atomic_uintptr_t map;
- int ret;
- const char *tag = NULL;
- EventTagMap *m, *f = NULL;
- m = (EventTagMap *)atomic_load(&map);
+ tag = NULL;
+ f = NULL;
+ m = (EventTagMap *)atomic_load(&map);
+
+ if (!m) {
+ ret = trylock();
+ m = (EventTagMap *)atomic_load(&map); /* trylock flush cache */
if (!m) {
- ret = trylock();
- m = (EventTagMap *)atomic_load(&map); /* trylock flush cache */
- if (!m) {
- m = android_openEventTagMap(EVENT_TAG_MAP_FILE);
- if (ret) { /* trylock failed, local copy, mark for close */
- f = m;
- } else {
- if (!m) { /* One chance to open map file */
- m = (EventTagMap *)(uintptr_t)-1LL;
- }
- atomic_store(&map, (uintptr_t)m);
+ m = android_openEventTagMap(EVENT_TAG_MAP_FILE);
+ if (ret) { /* trylock failed, use local copy, mark for close */
+ f = m;
+ } else {
+ if (!m) { /* One chance to open map file */
+ m = (EventTagMap *)(uintptr_t)-1LL;
}
- }
- if (!ret) { /* trylock succeeded, unlock */
- unlock();
+ atomic_store(&map, (uintptr_t)m);
}
}
- if (m && (m != (EventTagMap *)(uintptr_t)-1LL)) {
- tag = android_lookupEventTag(
+ if (!ret) { /* trylock succeeded, unlock */
+ unlock();
+ }
+ }
+ if (m && (m != (EventTagMap *)(uintptr_t)-1LL)) {
+ tag = android_lookupEventTag(
m,
htole32(((uint32_t *)vec[0].iov_base)[0]));
- }
- ret = __android_log_is_loggable(ANDROID_LOG_INFO,
- tag,
- ANDROID_LOG_VERBOSE);
- if (f) { /* local copy marked for close */
- android_closeEventTagMap(f);
- }
- if (!ret) {
- return -EPERM;
- }
+ }
+ ret = __android_log_is_loggable(ANDROID_LOG_INFO,
+ tag,
+ ANDROID_LOG_VERBOSE);
+ if (f) { /* local copy marked for close */
+ android_closeEventTagMap(f);
+ }
+ if (!ret) {
+ return -EPERM;
}
} else {
/* Validate the incoming tag, tag content can not split across iovec */
diff --git a/logd/Android.mk b/logd/Android.mk
index d19c255..feca8d5 100644
--- a/logd/Android.mk
+++ b/logd/Android.mk
@@ -38,9 +38,7 @@
# event_flag := $(call event_logtags,auditd)
# event_flag += $(call event_logtags,logd)
# so make sure we do not regret hard-coding it as follows:
-event_flag := -DAUDITD_LOG_TAG=1003 \
- -DLOGD_LOG_TAG=1004 \
- -DSNET_EVENT_LOG_TAG=1397638484
+event_flag := -DAUDITD_LOG_TAG=1003 -DLOGD_LOG_TAG=1004
LOCAL_CFLAGS := -Werror $(event_flag)
diff --git a/logd/LogBuffer.cpp b/logd/LogBuffer.cpp
index 1b829c6..707527b 100644
--- a/logd/LogBuffer.cpp
+++ b/logd/LogBuffer.cpp
@@ -32,7 +32,7 @@
#include "LogReader.h"
// Default
-#define LOG_BUFFER_SIZE (256 * 1024) // Tuned on a per-platform basis here?
+#define LOG_BUFFER_SIZE (256 * 1024) // Tuned with ro.logd.size per-platform
#define log_buffer_size(id) mMaxSize[id]
#define LOG_BUFFER_MIN_SIZE (64 * 1024UL)
#define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL)
@@ -205,20 +205,16 @@
LogBufferElement *elem = new LogBufferElement(log_id, realtime,
uid, pid, tid, msg, len);
- if (log_id != LOG_ID_SECURITY) { // whitelist LOG_ID_SECURITY
+ if (log_id != LOG_ID_SECURITY) {
int prio = ANDROID_LOG_INFO;
- const char *tag = (const char *)-1;
+ const char *tag = NULL;
if (log_id == LOG_ID_EVENTS) {
- // whitelist "snet_event_log"
- if (elem->getTag() != SNET_EVENT_LOG_TAG) {
- tag = android::tagToName(elem->getTag());
- }
+ tag = android::tagToName(elem->getTag());
} else {
prio = *msg;
tag = msg + 1;
}
- if ((tag != (const char *)-1) &&
- !__android_log_is_loggable(prio, tag, ANDROID_LOG_VERBOSE)) {
+ if (!__android_log_is_loggable(prio, tag, ANDROID_LOG_VERBOSE)) {
// Log traffic received to total
pthread_mutex_lock(&mLogElementsLock);
stats.add(elem);
diff --git a/logd/README.property b/logd/README.property
index 75d9eb0..22f86b9 100644
--- a/logd/README.property
+++ b/logd/README.property
@@ -15,7 +15,11 @@
persist.logd.size number ro Global default size of the buffer for
all log ids at initial startup, at
runtime use: logcat -b all -G <value>
-ro.logd.size number svelte default for persist.logd.size
+ro.logd.size number svelte default for persist.logd.size. Larger
+ platform default sizes than 256KB are
+ known to not scale well under log spam
+ pressure. Address the spam first,
+ resist increasing the log buffer.
persist.logd.size.<buffer> number ro Size of the buffer for <buffer> log
ro.logd.size.<buffer> number svelte default for persist.logd.size.<buffer>
ro.config.low_ram bool false if true, logd.statistics, logd.kernel
diff --git a/metricsd/Android.mk b/metricsd/Android.mk
index 2149a4b..7381703 100644
--- a/metricsd/Android.mk
+++ b/metricsd/Android.mk
@@ -28,7 +28,7 @@
collectors/cpu_usage_collector.cc \
collectors/disk_usage_collector.cc \
metrics_collector.cc \
- metrics_collector_service_trampoline.cc \
+ metrics_collector_service_impl.cc \
persistent_integer.cc
metricsd_common := \
@@ -102,15 +102,14 @@
# ==========================================================
include $(CLEAR_VARS)
LOCAL_MODULE := libmetricscollectorservice
+LOCAL_CLANG := true
LOCAL_SHARED_LIBRARIES := libbinder libbrillo-binder libchrome libutils
LOCAL_CPP_EXTENSION := $(metrics_cpp_extension)
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
LOCAL_SRC_FILES := \
aidl/android/brillo/metrics/IMetricsCollectorService.aidl \
- metrics_collector_service_impl.cc \
metrics_collector_service_client.cc
-LOCAL_RTTI_FLAG := -fno-rtti
include $(BUILD_STATIC_LIBRARY)
# Shared library for metrics.
@@ -122,7 +121,6 @@
LOCAL_CLANG := true
LOCAL_CPP_EXTENSION := $(metrics_cpp_extension)
LOCAL_CPPFLAGS := $(metrics_CPPFLAGS)
-LOCAL_RTTI_FLAG := -frtti
LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
LOCAL_SHARED_LIBRARIES := $(libmetrics_shared_libraries)
LOCAL_SRC_FILES := $(libmetrics_sources)
@@ -166,7 +164,6 @@
LOCAL_CPPFLAGS := $(metrics_CPPFLAGS)
LOCAL_INIT_RC := metrics_collector.rc
LOCAL_REQUIRED_MODULES := metrics.json
-LOCAL_RTTI_FLAG := -frtti
LOCAL_SHARED_LIBRARIES := $(metrics_collector_shared_libraries)
LOCAL_SRC_FILES := $(metrics_collector_common) \
metrics_collector_main.cc
@@ -213,7 +210,6 @@
LOCAL_CLANG := true
LOCAL_CPP_EXTENSION := $(metrics_cpp_extension)
LOCAL_CPPFLAGS := $(metrics_CPPFLAGS) -Wno-sign-compare
-LOCAL_RTTI_FLAG := -frtti
LOCAL_SHARED_LIBRARIES := $(metrics_collector_shared_libraries)
LOCAL_SRC_FILES := $(metrics_collector_tests_sources) \
$(metrics_collector_common)
diff --git a/metricsd/metrics_collector.cc b/metricsd/metrics_collector.cc
index a5daab5..97690dd 100644
--- a/metricsd/metrics_collector.cc
+++ b/metricsd/metrics_collector.cc
@@ -30,12 +30,13 @@
#include <base/strings/string_split.h>
#include <base/strings/string_util.h>
#include <base/strings/stringprintf.h>
+#include <brillo/binder_watcher.h>
#include <brillo/osrelease_reader.h>
#include <dbus/dbus.h>
#include <dbus/message.h>
#include "constants.h"
-#include "metrics_collector_service_trampoline.h"
+#include "metrics_collector_service_impl.h"
using base::FilePath;
using base::StringPrintf;
@@ -128,10 +129,18 @@
version_cumulative_cpu_use_->Set(0);
}
- // Start metricscollectorservice via trampoline
- MetricsCollectorServiceTrampoline metricscollectorservice_trampoline(this);
- metricscollectorservice_trampoline.Run();
+ // Start metricscollectorservice
+ android::sp<BnMetricsCollectorServiceImpl> metrics_collector_service =
+ new BnMetricsCollectorServiceImpl(this);
+ android::status_t status = android::defaultServiceManager()->addService(
+ metrics_collector_service->getInterfaceDescriptor(),
+ metrics_collector_service);
+ CHECK(status == android::OK)
+ << "failed to register service metricscollectorservice";
+ // Watch Binder events in the main loop
+ brillo::BinderWatcher binder_watcher;
+ CHECK(binder_watcher.Init()) << "Binder FD watcher init failed";
return brillo::DBusDaemon::Run();
}
diff --git a/metricsd/metrics_collector.rc b/metricsd/metrics_collector.rc
index 2e7e0ae..3dcb2d7 100644
--- a/metricsd/metrics_collector.rc
+++ b/metricsd/metrics_collector.rc
@@ -1,4 +1,4 @@
service metricscollector /system/bin/metrics_collector --foreground --logtosyslog
class late_start
- user system
- group system dbus
+ user metrics_coll
+ group metrics_coll dbus
diff --git a/metricsd/metrics_collector_service_impl.cc b/metricsd/metrics_collector_service_impl.cc
index dbb0578..4d9a05a 100644
--- a/metricsd/metrics_collector_service_impl.cc
+++ b/metricsd/metrics_collector_service_impl.cc
@@ -18,27 +18,18 @@
#include <binder/IServiceManager.h>
#include <binder/Status.h>
-#include <brillo/binder_watcher.h>
#include <utils/Errors.h>
-#include "metrics_collector_service_trampoline.h"
+#include "metrics_collector.h"
using namespace android;
BnMetricsCollectorServiceImpl::BnMetricsCollectorServiceImpl(
- MetricsCollectorServiceTrampoline* metrics_collector_service_trampoline) {
- metrics_collector_service_trampoline_ = metrics_collector_service_trampoline;
-}
-
-void BnMetricsCollectorServiceImpl::Run() {
- status_t status =
- defaultServiceManager()->addService(getInterfaceDescriptor(), this);
- CHECK(status == OK) << "libmetricscollectorservice: failed to add service";
- binder_watcher_.reset(new ::brillo::BinderWatcher);
- CHECK(binder_watcher_->Init()) << "Binder FD watcher init failed";
+ MetricsCollector* metrics_collector)
+ : metrics_collector_(metrics_collector) {
}
android::binder::Status BnMetricsCollectorServiceImpl::notifyUserCrash() {
- metrics_collector_service_trampoline_->ProcessUserCrash();
+ metrics_collector_->ProcessUserCrash();
return android::binder::Status::ok();
}
diff --git a/metricsd/metrics_collector_service_impl.h b/metricsd/metrics_collector_service_impl.h
index bdcab50..8db418a 100644
--- a/metricsd/metrics_collector_service_impl.h
+++ b/metricsd/metrics_collector_service_impl.h
@@ -18,45 +18,31 @@
#define METRICSD_METRICS_COLLECTOR_SERVICE_IMPL_H_
// metrics_collector binder service implementation. Constructed by
-// MetricsCollectorServiceTrampoline, which we use to call back into
-// MetricsCollector. The trampoline isolates us from the -frtti code of
-// metrics_collector / libbrillo.
+// MetricsCollector.
#include "android/brillo/metrics/BnMetricsCollectorService.h"
-#include <memory>
-
#include <binder/Status.h>
-#include <brillo/binder_watcher.h>
-class MetricsCollectorServiceTrampoline;
-
-//#include "metrics_collector_service_trampoline.h"
+class MetricsCollector;
class BnMetricsCollectorServiceImpl
: public android::brillo::metrics::BnMetricsCollectorService {
public:
- // Passed a this pointer from the MetricsCollectorServiceTrampoline
- // object that constructs us.
+ // Passed a this pointer from the MetricsCollector object that constructs us.
explicit BnMetricsCollectorServiceImpl(
- MetricsCollectorServiceTrampoline* metrics_collector_service_trampoline);
+ MetricsCollector* metrics_collector_service);
virtual ~BnMetricsCollectorServiceImpl() = default;
- // Starts the binder main loop.
- void Run();
-
// Called by crash_reporter to report a userspace crash event. We relay
- // this to MetricsCollector using the trampoline.
+ // this to MetricsCollector.
android::binder::Status notifyUserCrash();
private:
- // Trampoline object that constructs us, we use this to call MetricsCollector
- // methods via the trampoline.
- MetricsCollectorServiceTrampoline* metrics_collector_service_trampoline_;
-
- // BinderWatcher object we construct for handling Binder traffic
- std::unique_ptr<brillo::BinderWatcher> binder_watcher_;
+ // MetricsCollector object that constructs us, we use this to call back
+ // to it.
+ MetricsCollector* metrics_collector_;
};
#endif // METRICSD_METRICS_COLLECTOR_SERVICE_IMPL_H_
diff --git a/metricsd/metrics_collector_service_trampoline.cc b/metricsd/metrics_collector_service_trampoline.cc
deleted file mode 100644
index 12b80a1..0000000
--- a/metricsd/metrics_collector_service_trampoline.cc
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * 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 "metrics_collector_service_trampoline.h"
-#include "metrics_collector.h"
-#include "metrics_collector_service_impl.h"
-
-MetricsCollectorServiceTrampoline::MetricsCollectorServiceTrampoline(
- MetricsCollector* metrics_collector) {
- metrics_collector_ = metrics_collector;
-}
-
-void MetricsCollectorServiceTrampoline::Run() {
- // Start metricscollectorservice binder service
- metrics_collector_service.reset(new BnMetricsCollectorServiceImpl(this));
- metrics_collector_service->Run();
-}
-
-void MetricsCollectorServiceTrampoline::ProcessUserCrash() {
- metrics_collector_->ProcessUserCrash();
-}
diff --git a/metricsd/metrics_collector_service_trampoline.h b/metricsd/metrics_collector_service_trampoline.h
deleted file mode 100644
index 5da9fa5..0000000
--- a/metricsd/metrics_collector_service_trampoline.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * 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.
- */
-
-#ifndef METRICSD_METRICS_COLLECTOR_SERVICE_TRAMPOLINE_H_
-#define METRICSD_METRICS_COLLECTOR_SERVICE_TRAMPOLINE_H_
-
-// Trampoline between the -fno-rtti compile of libmetricsservice and the
-// -frtti compile of metrics_collector. MetricsCollectorServiceTrampoline
-// is called from MetricsCollector to run the IMetricsCollectorService
-// server, and acts as a go-between for calls from server back to
-// MetricsCollector.
-
-#include <memory>
-
-#include "metrics_collector_service_impl.h"
-
-// Forward declaration of MetricsCollector. Don't include the header file
-// for the class here, as it pulls in -frtti stuff.
-class MetricsCollector;
-
-class MetricsCollectorServiceTrampoline {
- public:
- // Constructor take a this pointer from the MetricsCollector class that
- // constructs these objects.
- explicit MetricsCollectorServiceTrampoline(
- MetricsCollector* metrics_collector);
-
- // Initialize and run the IMetricsCollectorService
- void Run();
-
- // Called from IMetricsCollectorService to trampoline into the
- // MetricsCollector method of the same name.
- void ProcessUserCrash();
-
- private:
- // The MetricsCollector object that constructs us, for which we act as
- // the go-between for MetricsCollectorServiceImpl use.
- MetricsCollector* metrics_collector_;
-
- // The IMetricsCollectorService implementation we construct.
- std::unique_ptr<BnMetricsCollectorServiceImpl> metrics_collector_service;
-};
-
-#endif // METRICSD_METRICS_COLLECTOR_SERVICE_TRAMPOLINE_H_
diff --git a/metricsd/metricsd.rc b/metricsd/metricsd.rc
index 359d0d1..825c87f 100644
--- a/metricsd/metricsd.rc
+++ b/metricsd/metricsd.rc
@@ -1,9 +1,9 @@
on post-fs-data
- mkdir /data/misc/metrics 0770 system system
- mkdir /data/misc/metricsd 0700 system system
- mkdir /data/misc/metrics_collector 0700 system system
+ mkdir /data/misc/metrics 0750 metrics_coll system
+ mkdir /data/misc/metricsd 0700 metricsd metricsd
+ mkdir /data/misc/metrics_collector 0700 metrics_coll metrics_coll
service metricsd /system/bin/metricsd --foreground --logtosyslog
class late_start
- user system
+ user metricsd
group system dbus inet