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Commit d5f7cc74 authored by Mark Salyzyn's avatar Mark Salyzyn Committed by android-build-merger
Browse files

Merge "logcatd: introduce logcatd executable" 

am: 47356e69

Change-Id: I0cc69ca055e82f3933d922baa3dfbe2efc68dded
parents 1ab138c6 47356e69

logcat/Android.mk

+10 −0
Original line number Diff line number Diff line
@@ -15,6 +15,16 @@ include $(BUILD_EXECUTABLE) 


include $(CLEAR_VARS)



LOCAL_MODULE := logcatd

LOCAL_MODULE_TAGS := debug

LOCAL_SRC_FILES := logcatd_main.cpp event.logtags

LOCAL_SHARED_LIBRARIES := liblogcat $(logcatLibs)

LOCAL_CFLAGS := -Werror



include $(BUILD_EXECUTABLE)



include $(CLEAR_VARS)



LOCAL_MODULE := liblogcat

LOCAL_SRC_FILES := logcat.cpp getopt_long.cpp logcat_system.cpp

LOCAL_SHARED_LIBRARIES := $(logcatLibs)

logcat/logcatd.rc

+1 −4
Original line number Diff line number Diff line
@@ -34,9 +34,6 @@ on load_persist_props_action 
on property:logd.logpersistd.enable=true && property:logd.logpersistd=logcatd

    # all exec/services are called with umask(077), so no gain beyond 0700

    mkdir /data/misc/logd 0700 logd log

    # logd for write to /data/misc/logd, log group for read from pstore (-L)

    # b/28788401 b/30041146 b/30612424

    # exec - logd log -- /system/bin/logcat -L -b ${logd.logpersistd.buffer:-all} -v threadtime -v usec -v printable -D -f /data/misc/logd/logcat -r 1024 -n ${logd.logpersistd.size:-256} --id=${ro.build.id}

    start logcatd



# stop logcatd service and clear data
@@ -57,7 +54,7 @@ on property:logd.logpersistd.enable=false 
    stop logcatd



# logcatd service

service logcatd /system/bin/logcat -b ${logd.logpersistd.buffer:-all} -v threadtime -v usec -v printable -D -f /data/misc/logd/logcat -r 1024 -n ${logd.logpersistd.size:-256} --id=${ro.build.id}

service logcatd /system/bin/logcatd -L -b ${logd.logpersistd.buffer:-all} -v threadtime -v usec -v printable -D -f /data/misc/logd/logcat -r 1024 -n ${logd.logpersistd.size:-256} --id=${ro.build.id}

    class late_start

    disabled

    # logd for write to /data/misc/logd, log group for read from log daemon

logcat/logcatd_main.cpp

0 → 100644
+71 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2017 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#include <signal.h>

#include <stdlib.h>

#include <string.h>



#include <string>

#include <vector>



#include <log/logcat.h>



int main(int argc, char** argv, char** envp) {

    android_logcat_context ctx = create_android_logcat();

    if (!ctx) return -1;



    signal(SIGPIPE, exit);



    // Save and detect presence of -L or --last flag

    std::vector<std::string> args;

    bool last = false;

    for (int i = 0; i < argc; ++i) {

        if (!argv[i]) continue;

        args.push_back(std::string(argv[i]));

        if (!strcmp(argv[i], "-L") || !strcmp(argv[i], "--last")) last = true;

    }



    // Generate argv from saved content

    std::vector<const char*> argv_hold;

    for (auto& str : args) argv_hold.push_back(str.c_str());

    argv_hold.push_back(nullptr);



    int ret = 0;

    if (last) {

        // Run logcat command with -L flag

        ret = android_logcat_run_command(ctx, -1, -1, argv_hold.size() - 1,

                                         (char* const*)&argv_hold[0], envp);

        // Remove -L and --last flags from argument list

        for (std::vector<const char*>::iterator it = argv_hold.begin();

             it != argv_hold.end();) {

            if (!*it || (strcmp(*it, "-L") && strcmp(*it, "--last"))) {

                ++it;

            } else {

                it = argv_hold.erase(it);

            }

        }

        // fall through to re-run the command regardless of the arguments

        // passed in.  For instance, we expect -h to report help stutter.

    }



    // Run logcat command without -L flag

    int retval = android_logcat_run_command(ctx, -1, -1, argv_hold.size() - 1,

                                            (char* const*)&argv_hold[0], envp);

    if (!ret) ret = retval;

    retval = android_logcat_destroy(&ctx);

    if (!ret) ret = retval;

    return ret;

}

logcat/tests/Android.mk

+1 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ include $(BUILD_NATIVE_BENCHMARK) 


test_src_files := \

    logcat_test.cpp \

    logcatd_test.cpp \

    liblogcat_test.cpp \



# Build tests for the device (with .so). Run with:

logcat/tests/logcat_test.cpp

+66 −58
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/cdefs.h>

#include <sys/stat.h>

#include <sys/types.h>

#include <sys/wait.h>
@@ -39,6 +40,10 @@ 
#define logcat_pclose(context, fp) pclose(fp)

#define logcat_system(command) system(command)

#endif

#ifndef logcat_executable

#define USING_LOGCAT_EXECUTABLE_DEFAULT

#define logcat_executable "logcat"

#endif



#define BIG_BUFFER (5 * 1024)
@@ -64,14 +69,13 @@ TEST(logcat, buckets) { 


#undef LOG_TAG

#define LOG_TAG "inject"

    RLOGE("logcat.buckets");

    RLOGE(logcat_executable ".buckets");

    sleep(1);



    ASSERT_TRUE(

        NULL !=

    ASSERT_TRUE(NULL !=

                (fp = logcat_popen(

             ctx,

             "logcat -b radio -b events -b system -b main -d 2>/dev/null")));

                     ctx, logcat_executable

                     " -b radio -b events -b system -b main -d 2>/dev/null")));



    char buffer[BIG_BUFFER];
@@ -101,8 +105,8 @@ TEST(logcat, event_tag_filter) { 
    logcat_define(ctx);



    ASSERT_TRUE(NULL !=

                (fp = logcat_popen(ctx,

                                   "logcat -b events -d -s auditd "

                (fp = logcat_popen(ctx, logcat_executable

                                   " -b events -d -s auditd "

                                   "am_proc_start am_pss am_proc_bound "

                                   "dvm_lock_sample am_wtf 2>/dev/null")));
@@ -170,10 +174,9 @@ TEST(logcat, year) { 
#endif

        strftime(needle, sizeof(needle), "[ %Y-", ptm);



        ASSERT_TRUE(

            NULL !=

            (fp = logcat_popen(

                 ctx, "logcat -v long -v year -b all -t 3 2>/dev/null")));

        ASSERT_TRUE(NULL != (fp = logcat_popen(

                                 ctx, logcat_executable

                                 " -v long -v year -b all -t 3 2>/dev/null")));



        char buffer[BIG_BUFFER];
@@ -237,8 +240,8 @@ TEST(logcat, tz) { 
        logcat_define(ctx);



        ASSERT_TRUE(NULL !=

                    (fp = logcat_popen(ctx,

                                       "logcat -v long -v America/Los_Angeles "

                    (fp = logcat_popen(ctx, logcat_executable

                                       " -v long -v America/Los_Angeles "

                                       "-b all -t 3 2>/dev/null")));



        char buffer[BIG_BUFFER];
@@ -264,9 +267,8 @@ TEST(logcat, ntz) { 
    FILE* fp;

    logcat_define(ctx);



    ASSERT_TRUE(NULL !=

                (fp = logcat_popen(ctx,

                                   "logcat -v long -v America/Los_Angeles -v "

    ASSERT_TRUE(NULL != (fp = logcat_popen(ctx, logcat_executable

                                           " -v long -v America/Los_Angeles -v "

                                           "zone -b all -t 3 2>/dev/null")));



    char buffer[BIG_BUFFER];
@@ -435,11 +437,11 @@ static void do_tail_time(const char* cmd) { 
}



TEST(logcat, tail_time) {

    do_tail_time("logcat -v long -v nsec -b all");

    do_tail_time(logcat_executable " -v long -v nsec -b all");

}



TEST(logcat, tail_time_epoch) {

    do_tail_time("logcat -v long -v nsec -v epoch -b all");

    do_tail_time(logcat_executable " -v long -v nsec -v epoch -b all");

}



TEST(logcat, End_to_End) {
@@ -452,8 +454,8 @@ TEST(logcat, End_to_End) { 
    FILE* fp;

    logcat_define(ctx);

    ASSERT_TRUE(NULL !=

                (fp = logcat_popen(

                     ctx, "logcat -v brief -b events -t 100 2>/dev/null")));

                (fp = logcat_popen(ctx, logcat_executable

                                   " -v brief -b events -t 100 2>/dev/null")));



    char buffer[BIG_BUFFER];
@@ -492,8 +494,8 @@ TEST(logcat, End_to_End_multitude) { 
    size_t num = 0;

    do {

        EXPECT_TRUE(NULL !=

                    (fp[num] = logcat_popen(

                         ctx[num], "logcat -v brief -b events -t 100")));

                    (fp[num] = logcat_popen(ctx[num], logcat_executable

                                            " -v brief -b events -t 100")));

        if (!fp[num]) {

            fprintf(stderr,

                    "WARNING: limiting to %zu simultaneous logcat operations\n",
@@ -604,22 +606,23 @@ static int get_groups(const char* cmd) { 
}



TEST(logcat, get_size) {

    ASSERT_EQ(4, get_groups("logcat -v brief -b radio -b events -b system -b "

    ASSERT_EQ(4, get_groups(logcat_executable

                            " -v brief -b radio -b events -b system -b "

                            "main -g 2>/dev/null"));

}



// duplicate test for get_size, but use comma-separated list of buffers

TEST(logcat, multiple_buffer) {

    ASSERT_EQ(

        4, get_groups(

               "logcat -v brief -b radio,events,system,main -g 2>/dev/null"));

        4, get_groups(logcat_executable

                      " -v brief -b radio,events,system,main -g 2>/dev/null"));

}



TEST(logcat, bad_buffer) {

    ASSERT_EQ(

        0,

    ASSERT_EQ(0,

              get_groups(

            "logcat -v brief -b radio,events,bogo,system,main -g 2>/dev/null"));

                  logcat_executable

                  " -v brief -b radio,events,bogo,system,main -g 2>/dev/null"));

}



#ifndef logcat
@@ -774,8 +777,8 @@ TEST(logcat, logrotate) { 
    char buf[sizeof(form)];

    ASSERT_TRUE(NULL != mkdtemp(strcpy(buf, form)));



    static const char comm[] =

        "logcat -b radio -b events -b system -b main"

    static const char comm[] = logcat_executable

        " -b radio -b events -b system -b main"

        " -d -f %s/log.txt -n 7 -r 1";

    char command[sizeof(buf) + sizeof(comm)];

    snprintf(command, sizeof(command), comm, buf);
@@ -820,8 +823,8 @@ TEST(logcat, logrotate_suffix) { 
    char tmp_out_dir[sizeof(tmp_out_dir_form)];

    ASSERT_TRUE(NULL != mkdtemp(strcpy(tmp_out_dir, tmp_out_dir_form)));



    static const char logcat_cmd[] =

        "logcat -b radio -b events -b system -b main"

    static const char logcat_cmd[] = logcat_executable

        " -b radio -b events -b system -b main"

        " -d -f %s/log.txt -n 10 -r 1";

    char command[sizeof(tmp_out_dir) + sizeof(logcat_cmd)];

    snprintf(command, sizeof(command), logcat_cmd, tmp_out_dir);
@@ -880,7 +883,7 @@ TEST(logcat, logrotate_continue) { 


    static const char log_filename[] = "log.txt";

    static const char logcat_cmd[] =

        "logcat -b all -v nsec -d -f %s/%s -n 256 -r 1024";

        logcat_executable " -b all -v nsec -d -f %s/%s -n 256 -r 1024";

    static const char cleanup_cmd[] = "rm -rf %s";

    char command[sizeof(tmp_out_dir) + sizeof(logcat_cmd) + sizeof(log_filename)];

    snprintf(command, sizeof(command), logcat_cmd, tmp_out_dir, log_filename);
@@ -1005,7 +1008,8 @@ TEST(logcat, logrotate_clear) { 


    static const char log_filename[] = "log.txt";

    static const unsigned num_val = 32;

    static const char logcat_cmd[] = "logcat -b all -d -f %s/%s -n %d -r 1";

    static const char logcat_cmd[] =

        logcat_executable " -b all -d -f %s/%s -n %d -r 1";

    static const char clear_cmd[] = " -c";

    static const char cleanup_cmd[] = "rm -rf %s";

    char command[sizeof(tmp_out_dir) + sizeof(logcat_cmd) +
@@ -1109,9 +1113,9 @@ static int logrotate_count_id(const char* logcat_cmd, const char* tmp_out_dir) { 


TEST(logcat, logrotate_id) {

    static const char logcat_cmd[] =

        "logcat -b all -d -f %s/%s -n 32 -r 1 --id=test";

        logcat_executable " -b all -d -f %s/%s -n 32 -r 1 --id=test";

    static const char logcat_short_cmd[] =

        "logcat -b all -t 10 -f %s/%s -n 32 -r 1 --id=test";

        logcat_executable " -b all -t 10 -f %s/%s -n 32 -r 1 --id=test";

    static const char tmp_out_dir_form[] =

        "/data/local/tmp/logcat.logrotate.XXXXXX";

    static const char log_filename[] = "log.txt";
@@ -1155,8 +1159,8 @@ TEST(logcat, logrotate_id) { 


TEST(logcat, logrotate_nodir) {

    // expect logcat to error out on writing content and not exit(0) for nodir

    static const char command[] =

        "logcat -b all -d"

    static const char command[] = logcat_executable

        " -b all -d"

        " -f /das/nein/gerfingerpoken/logcat/log.txt"

        " -n 256 -r 1024";

    EXPECT_FALSE(IsFalse(0 == logcat_system(command), command));
@@ -1292,7 +1296,7 @@ static bool get_white_black(char** list) { 
    FILE* fp;

    logcat_define(ctx);



    fp = logcat_popen(ctx, "logcat -p 2>/dev/null");

    fp = logcat_popen(ctx, logcat_executable " -p 2>/dev/null");

    if (fp == NULL) {

        fprintf(stderr, "ERROR: logcat -p 2>/dev/null\n");

        return false;
@@ -1330,7 +1334,8 @@ static bool set_white_black(const char* list) { 


    char buffer[BIG_BUFFER];



    snprintf(buffer, sizeof(buffer), "logcat -P '%s' 2>&1", list ? list : "");

    snprintf(buffer, sizeof(buffer), logcat_executable " -P '%s' 2>&1",

             list ? list : "");

    fp = logcat_popen(ctx, buffer);

    if (fp == NULL) {

        fprintf(stderr, "ERROR: %s\n", buffer);
@@ -1392,15 +1397,11 @@ TEST(logcat, regex) { 
    int count = 0;



    char buffer[BIG_BUFFER];

// Have to make liblogcat data unique from logcat data injection

#ifdef logcat

#define logcat_regex_prefix "lolcat_test"

#else

#define logcat_regex_prefix "logcat_test"

#endif

#define logcat_regex_prefix ___STRING(logcat) "_test"



    snprintf(buffer, sizeof(buffer),

             "logcat --pid %d -d -e " logcat_regex_prefix "_a+b", getpid());

             logcat_executable " --pid %d -d -e " logcat_regex_prefix "_a+b",

             getpid());



    LOG_FAILURE_RETRY(__android_log_print(ANDROID_LOG_WARN, logcat_regex_prefix,

                                          logcat_regex_prefix "_ab"));
@@ -1437,8 +1438,8 @@ TEST(logcat, maxcount) { 


    char buffer[BIG_BUFFER];



    snprintf(buffer, sizeof(buffer), "logcat --pid %d -d --max-count 3",

             getpid());

    snprintf(buffer, sizeof(buffer),

             logcat_executable " --pid %d -d --max-count 3", getpid());



    LOG_FAILURE_RETRY(

        __android_log_print(ANDROID_LOG_WARN, "logcat_test", "logcat_test"));
@@ -1663,10 +1664,11 @@ static bool reportedSecurity(const char* command) { 
}



TEST(logcat, security) {

    EXPECT_FALSE(reportedSecurity("logcat -b all -g 2>&1"));

    EXPECT_TRUE(reportedSecurity("logcat -b security -g 2>&1"));

    EXPECT_TRUE(reportedSecurity("logcat -b security -c 2>&1"));

    EXPECT_TRUE(reportedSecurity("logcat -b security -G 256K 2>&1"));

    EXPECT_FALSE(reportedSecurity(logcat_executable " -b all -g 2>&1"));

    EXPECT_TRUE(reportedSecurity(logcat_executable " -b security -g 2>&1"));

    EXPECT_TRUE(reportedSecurity(logcat_executable " -b security -c 2>&1"));

    EXPECT_TRUE(

        reportedSecurity(logcat_executable " -b security -G 256K 2>&1"));

}



static size_t commandOutputSize(const char* command) {
@@ -1682,8 +1684,14 @@ static size_t commandOutputSize(const char* command) { 
}



TEST(logcat, help) {

    size_t logcatHelpTextSize = commandOutputSize("logcat -h 2>&1");

    size_t logcatHelpTextSize = commandOutputSize(logcat_executable " -h 2>&1");

    EXPECT_LT(4096UL, logcatHelpTextSize);

    size_t logcatLastHelpTextSize = commandOutputSize("logcat -L -h 2>&1");

    size_t logcatLastHelpTextSize =

        commandOutputSize(logcat_executable " -L -h 2>&1");

#ifdef USING_LOGCAT_EXECUTABLE_DEFAULT  // logcat and liblogcat

    EXPECT_EQ(logcatHelpTextSize, logcatLastHelpTextSize);

#else

    // logcatd -L -h prints the help twice, as designed.

    EXPECT_EQ(logcatHelpTextSize * 2, logcatLastHelpTextSize);

#endif

}