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Commit e8ed36b6 authored by Siarhei Vishniakou's avatar Siarhei Vishniakou
Browse files

Use ro.logd.kernel for kernel logcat 

Prevent a possible DOS of the kernel logs because the runtime result
could differ from the boottime result.

Test: adb bugreport, then examine kernel log
Change-Id: I140fd465f2e691c751d92af50dbdf95e23c121d8
parent 93d344d9

logd/README.property

+3 −3
Original line number Diff line number Diff line
@@ -31,9 +31,9 @@ ro.logd.size number svelte default for persist.logd.size. Larger 
                                         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

                                         default false, logd.size 64K instead

                                         of 256K.

ro.config.low_ram          bool   false  if true, logd.statistics,

                                         ro.logd.kernel default false,

                                         logd.size 64K instead of 256K.

persist.logd.filter        string        Pruning filter to optimize content.

                                         At runtime use: logcat -P "<string>"

ro.logd.filter       string "~! ~1000/!" default for persist.logd.filter.

logd/main.cpp

+2 −2
Original line number Diff line number Diff line
@@ -438,8 +438,8 @@ int main(int argc, char* argv[]) { 


    int fdPmesg = -1;

    bool klogd = __android_logger_property_get_bool(

        "logd.kernel", BOOL_DEFAULT_TRUE | BOOL_DEFAULT_FLAG_PERSIST |

                           BOOL_DEFAULT_FLAG_ENG | BOOL_DEFAULT_FLAG_SVELTE);

        "ro.logd.kernel",

        BOOL_DEFAULT_TRUE | BOOL_DEFAULT_FLAG_ENG | BOOL_DEFAULT_FLAG_SVELTE);

    if (klogd) {

        static const char proc_kmsg[] = "/proc/kmsg";

        fdPmesg = android_get_control_file(proc_kmsg);