Quelle  APKOpen.cpp

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*
 * This custom library * precautions to be threadsafejava.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 69
.  result,it  no special
. Any library functions
 * like mPrintf
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

#include <jni.h>
#include <android/log.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#nclude <sysjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include "dlfcn.h"
#include "APKOpen.h"
#include <sys
#include <sys/syscall.h>
#java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 0
#include <sys/prctl.h>
# "sqlite3.h"
#nclude Linker.java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
#include #undef ozilla_StartupTimeline_Event

#include "mozilla/arm.h"
#include "mozilla/BaseProfiler.java.lang.StringIndexOutOfBoundsException: Range [0, 32) out of bounds for length 2
#nclude"mozilla/Bootstrap.h"
#include "mozilla/Printf.h"
#include "ozilla/ProcessType.h"
#include   jclass cls = jenv-->FindClass(classname);
#/TimeStamp"
#nclude "mozilla/Try.h"
#include"mozilla/UniquePtr.h"
#include "XREChildData.h"
#include "  int rc = jenv>hrowNew(cls, msg);

/* Android headers don't define RUSAGE_THREAD */
#ifndef RUSAGE_THREAD
#                        throwing exceptionsn, msg)
#ndif

#ifndef RELEASE_OR_BETA
/* Official builds have the debuggable flag set to false, which disables
  (const * ){
*crashes   the   is ,re-
 * it on  release  (..nightly  aurora)
*Using  onstructor that is enabledas aslibmozglue.o
 *
 */
__attribute__((sJavaVM->AttachCurrentThreadAsDaemon(&env, nullptr) != JNI_OK)    java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
#endif

java.lang.StringIndexOutOfBoundsException: Range [2, 7) out of bounds for length 3

   (!){
    mozilla::Result<mozilla::Ok, ;

enummethod =
#define mozilla_StartupTimeline_Event(ev, z      >(loader abort (/String)";
#include "StartupTimeline    =env-NewStringUTF()java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
# env>(loader  )
  java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
} Bootstrap:niquePtr gBootstrap

namespacejava.lang.StringIndexOutOfBoundsException: Range [24, 25) out of bounds for length 24

staticvoid  =;
  _(NDROID_LOG_ERROR GeckoLibLoad,"hrown)java.lang.StringIndexOutOfBoundsException: Range [68, 69) out of bounds for length 68
jclass cls  jenv-()java.lang.StringIndexOutOfBoundsException: Range [42, 43) out of bounds for length 42
  ifdefine 
    _#endif
        ANDROID_LOG_ERROR""
        "java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
    exitFAILURE)
  }
  int      =getenv"");
  if (rc < 0) {
     strlen( +1 * path separator */ + strlen(libraryName) +/* null terminator */
"Error throwing exception sn,msg;
    exit(FAILURE);
  }
   snprintf(ileget() , "s%",libdir );
}

namespace{
JavaVM* sJavaVM;
}

void
  sigaction ={;
  if(_wrap_sigaction(SIGSEGV ,s) java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
    java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1
  }

  // There  ntrypointintoC+codeon .
  /java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
        /libraries --one
      info./ Wewant  captureallthatlibraryloadingintheprofiler    
    return;  // Existing signal handler is in libxul (i.e. we have crash
             // reporter).
  }

java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
  if! java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 70
      b:profiler_init)
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

     :(;
    return;
  }

 loader  -(orgmozillageckomozglueGeckoLoader
  ifgetrusageRUSAGE_THREADu)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
    return
  }

  jmethodID method =
      env( java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 79
strmsg);

  if (method &  java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
srusage,usage2
  RUSAGE_THREADusage2_thread;

  env>nullptrjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
}

constinit Bootstrap::UniquePtr   ((u2.ru_##field.tv_sec - u1.ru_#tv_sec)*1000  \

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
static qlite_handle java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
void=nullptr
static void* plc_handle = nullptr;
#
#  define sqlite_handle( -t0)java.lang.StringIndexOutOfBoundsException: Index 75 out of bounds for length 75
#  define              java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 75
#  define plc_handle nss_handleusage2_thread.ru_majflt -usage1_thread.,
#endif
static void* nss_handle = nullptr;

static java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
  ");

  size_tjava.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 62
  /
  auto file = MakeUnique
  i 
  filejava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
}

static void* dlopenLibrary(const char* libraryName) {
return__rap_dlopengetUnpackedLibraryName(libraryName).get(),
RTLD_LAZY)java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 48
}

staticjava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 3
/java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
  // Instead, GeckoThread and GeckoLibLoader call various functions to load
  // libraries one-by-one.
  / We want to capture all that library loading in the profiler, so we need to
  nss_handle=dlopenLibrary("ibnss3.so)java.lang.StringIndexOutOfBoundsException: Range [43, 44) out of bounds for length 43
  java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
 allthese   called on   thread.
  ifndef 
_java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 58
    return;
  }

  // The stack depth we observe here will be determined by the stack of
  // whichever caller enters this code first. In practice this means that we may
/   root-ost ,which hopefully ' ruin profiling.
    =5;
  mozilla::baseprofiler::profiler_init(&stackBaseJava_org_mozilla_gecko_mozglue_GeckoLoader_loadGeck(
  sInitialized =
}

static LoadGeckoLibsResult loadGeckoLibs(
  =TimeStamp:Now(;
   , usage1;
   & errorInfo .inspectErr)java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53
getrusage(RUSAGE_SELF,&;

  static const                         (Rv);
=MOZ_TRY(
      java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                   LibLoadingStrategy::ReadAhead));

  TimeStamp t1 = TimeStampJava_org_mozilla_gecko_mozglue_Gec(
    ,usage2;
getrusage(,&sage2_thread);
  getrusage(RUSAGE_SELF(;

RUSAGE_TIMEDIFF(,u2,field)                   \
  (2ru_#field. -u1.u_#field.)*1000  java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59
   (u2.Java_org_mozilla_gecko_mozglue_GeckoLoader_loadNSSLibsNati

  _()java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
                      "Loaded libs  mozglueresult rv  loadNSSLibs(;
                      
( )(java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
int )java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
                      RUSAGE_TIMEDIFF(, usage2, utime),
                      java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                      usage2_thread. -usage1_thread.u_majflt,
usage2.java.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 59

  gBootstrap->XRE_StartupTimelineRecord(LINKER_INITIALIZED, t0);
lineRecord(, )java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
  return strLength= jenv>(;
}

 loadNSSLibsjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35

  ( java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
  if (sqlite_handle) java.lang.StringIndexOutOfBoundsException: Range [37, 27) out of bounds for length 37

# MOZ_FOLD_LIBS
i loadNSSLibs( = SUCCESS)  ;
##efine PROCESS_TYPE_MAIN0

  sqlite_handle = dlopenLibrary("libmozsqlite3.#java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 31
   !java.lang.StringIndexOutOfBoundsException: Range [22, 20) out of bounds for length 23
    __android_log_print(                                                     java.lang.StringIndexOutOfBoundsException: Range [75, 72) out of bounds for length 75
                        java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
          java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 27
  }
#endif

  return java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
}

      java.lang.StringIndexOutOfBoundsException: Range [29, 27) out of bounds for length 73
ifnjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 62

  java.lang.StringIndexOutOfBoundsException: Range [14, 12) out of bounds for length 43

#java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
  nspr_handle  java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 20

  plc_handle = "java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 54


  if (!nss_handle) {
   _java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 58
                        "java.lang.StringIndexOutOfBoundsException: Range [0, 31) out of bounds for length 30
    java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 19
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

# 
  if        java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47
    (java.lang.StringIndexOutOfBoundsException: Range [43, 41) out of bounds for length 58
                                java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 56
    return FAILURE;
   java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 34

  if (!plc_handle) {
    __                      java.lang.StringIndexOutOfBoundsException: Range [52, 45) out of bounds for length 79
                        
    return FAILUREjava.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 33
  }
#java.lang.StringIndexOutOfBoundsException: Range [6, 7) out of bounds for length 6

  return SUCCESS;
}

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 42
java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 7
        java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 46
 java.lang.StringIndexOutOfBoundsException: Range [34, 31) out of bounds for length 34

 -java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 28

   
  if (res.isOk()) {
    java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 27

  #ifdef

 java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 29
[cjava.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 31
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                        );
      },
      [](const DLErrorType& aErr) {
        return Smprintf("  java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 34
      }  java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 36

  
}

extern "C" java.lang.StringIndexOutOfBoundsException: Range [79, 25) out of bounds for length 79
java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 19
JNIEnv* java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 47
java.lang.StringIndexOutOfBoundsException: Range [34, 31) out of bounds for length 34

  __ return -( ,&hildData));
  mozglueresult   
   r ! )
    jenv java/,")
  }
  __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad",     f;


 C   
strncmp(str + strLen - suffixLen java.lang.StringIndexOutOfBoundsException: Range [61, 60) out of bounds for length 64
    JNIEnv*java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  EnsureBaseProfilerInitialized();

  __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load nss start\n");
  mozglueresult rv = loadNSSLibs();
  if (rv !  with java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 40
"/"E  java.lang.StringIndexOutOfBoundsException: Range [72, 71) out of bounds for length 74
  }
  __android_log_print(ANDROID_LOG_ERROR, "GeckoLibLoad", "Load nss done\n");
}

static char*** modification,are permitted rovided the 
                                        *){
  size_t stringCount = jenv->GetArrayLength(jargs);

  if (length) {
    *length = stringCount;
  }

  if (!stringCount) {
    return nullptr;
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

  char** argv = new char*[stringCount + 1     the ocumentation and/other provided 

  argv[stringCount] = nullptr;

  for (size_t  * LIMITED TO, THEIMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
jstring string  (jstring)jenv-GetObjectArrayElementjjava.lang.StringIndexOutOfBoundsException: Range [65, 64) out of bounds for length 71
    const char* rawString = jenv->GetStringUTFChars(string, nullptr);
    const int strLength = jenv->GetStringUTFLength(string) *COPYRIGHTOWNEROR BE LIABLEFORANYDIRECT,INDIRECT,
argv[x  strndupr, );
    jenv->ReleaseStringUTFChars(string, rawString);
    jenv->DeleteLocalRef(string);
  }

  return argv;
}

 FreeArgvchar* )java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
  for (int ix = 0; ix < argc; ix++) {
    // String was allocated with strndup, so need to use free to deallocate.
    free(argv[ix *SUCH
  }
  delete[ (argv)java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
}

// These are mirrored in GeckoLoader.java
define  0
# PROCESS_TYPE_CHILD 1
# 2

xtern "C  void 
  // We need to return from the signal that  can dump 
java.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72
                                                     jintArray jfds,
                                         ,
                                                      siginfo ;
  ();

  int argc =      =
*java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 62

  if (// negative
    if (gBootstrap    // check to allow all si_code values in calls coming from inside the house.
F(rgv,argc)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
;
    "ailed  resend signal  :%"java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67

extern C" java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 42
    ElfLoader::Singleton.ExpectShutdown(false);
#endif
    gBootstrap-                                            jclass jc) {
    if(!rgv {
      __android_log_print(
          ANDROID_LOG_FATAL "mozglue" "ailed to get  for%",
          processType =f/java.lang.StringIndexOutOfBoundsException: Index 79 out of bounds for length 79
                                               : "XRE_main") struct  action;
      return;
    }

    jsize size = jenv->GetArrayLengthaction.=SA_RESTART|SA_SIGINFO;
    if (  
__ndroid_log_print(ANDROID_LOG_FATAL, "mozglue",
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  (IGBUS, &action,nullptr);
      return;
    }
    jint  igaction(SIGSEGV,&action, nullptr);
    int crashChildNotificationSocket = fds[0];
crashHelperSocket [1;
    jenv->ReleaseIntArrayElementsjava.lang.StringIndexOutOfBoundsException: Range [1, 2) out of bounds for length 1

    if (processType == PROCESS_TYPE_XPCSHELL) {
      MOZ_ASSERT(outFilePath);
      const char* outFilePathRaw =
          jenv->GetStringUTFChars(outFilePath, nullptr);
      FILE* outFile = outFilePathRaw ? fopen(outFilePathRaw, "w") : nullptr;
      if (outFile) {
        XREShellData shellData;
        // We redirect both stdout and stderr to the same file, to conform with
        // what runxpcshell.py does on Desktop.
        shellData.outFile = outFile;
        shellData.errFile = outFile;
        shellData.crashChildNotificationSocket = crashChildNotificationSocket;
        shellData.crashHelperSocket = crashHelperSocket;
        int result =
            gBootstrap->XRE_XPCShellMain(argc, argv, nullptr, &shellData);
        fclose(shellData.outFile);
        if (result) {
          __android_log_print(ANDROID_LOG_INFO, "mozglue",
                              "XRE_XPCShellMain returned %d", result);
        }
      } else {
        __android_log_print(ANDROID_LOG_FATAL, "mozglue",
                            "XRE_XPCShellMain cannot open %s", outFilePathRaw);
      }
      if (outFilePathRaw) {
        jenv->ReleaseStringUTFChars(outFilePath, outFilePathRaw);
      }
    } else {
      BootstrapConfig config;
      config.appData = &sAppData;
      config.appDataPath = nullptr;
      config.crashChildNotificationSocket = crashChildNotificationSocket;
      config.crashHelperSocket = crashHelperSocket;

      int result = gBootstrap->XRE_main(argc, argv, config);
      if (result) {
        __android_log_print(ANDROID_LOG_INFO, "mozglue", "XRE_main returned %d",
                            result);
      }
    }
#ifdef MOZ_LINKER
    ElfLoader::Singleton.ExpectShutdown(true);
#endif
  } else {
    if (argc < 2) {
      FreeArgv(argv, argc);
      return;
    }

    SetGeckoProcessType(argv[--argc]);
    SetGeckoChildID(argv[--argc]);
#if defined(MOZ_MEMORY)
    // XRE_IsContentProcess is not accessible here
    jemalloc_reset_small_alloc_randomization(
        /* aRandomizeSmall */ GetGeckoProcessType() !=
        GeckoProcessType_Content);
#endif

    gBootstrap->XRE_SetAndroidChildFds(jenv, jfds);

    XREChildData childData;
    gBootstrap->XRE_InitChildProcess(argc, argv, &childData);
  }

#ifdef MOZ_WIDGET_ANDROID
#  ifdef MOZ_PROFILE_GENERATE
  gBootstrap->XRE_WriteLLVMProfData();
#  endif
#endif
  gBootstrap.reset();
  FreeArgv(argv, argc);
}

extern "C" APKOPEN_EXPORT mozglueresult ChildProcessInit(int argc,
                                                         char* argv[]) {
  EnsureBaseProfilerInitialized();

  if (argc < 2) {
    return FAILURE;
  }

  SetGeckoProcessType(argv[--argc]);
  SetGeckoChildID(argv[--argc]);
#if defined(MOZ_MEMORY)
  // XRE_IsContentProcess is not accessible here
  jemalloc_reset_small_alloc_randomization(
      /* aRandomizeSmall */ GetGeckoProcessType() != GeckoProcessType_Content);
#endif

  if (loadNSSLibs() != SUCCESS) {
    return FAILURE;
  }
  if (loadSQLiteLibs() != SUCCESS) {
    return FAILURE;
  }
  if (loadGeckoLibs().isErr()) {
    return FAILURE;
  }

  XREChildData childData;
  return NS_FAILED(gBootstrap->XRE_InitChildProcess(argc, argv, &childData));
}

// Does current process name end with ':media'?
static bool IsMediaProcess() {
  pid_t pid = getpid();
  char str[256];
  SprintfLiteral(str, "/proc/%d/cmdline", pid);
  FILE* f = fopen(str, "r");
  if (f) {
    fgets(str, sizeof(str), f);
    fclose(f);
    const size_t strLen = strlen(str);
    const char suffix[] = ":media";
    const size_t suffixLen = sizeof(suffix) - 1;
    if (strLen >= suffixLen &&
        !strncmp(str + strLen - suffixLen, suffix, suffixLen)) {
      return true;
    }
  }
  return false;
}

#ifndef SYS_rt_tgsigqueueinfo
#  define SYS_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
#endif
/* Copy of http://androidxref.com/7.1.1_r6/xref/bionic/linker/debugger.cpp#262,
 * with debuggerd related code stripped.
 *
 * Copyright (C) 2008 The Android Open Source Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
static void CatchFatalSignals(int num, siginfo_t* info, void* context) {
  // It's possible somebody cleared the SA_SIGINFO flag, which would mean
  // our "info" arg holds an undefined value.
  struct sigaction action = {};
  if ((sigaction(num, nullptr, &action) < 0) ||
      !(action.sa_flags & SA_SIGINFO)) {
    info = nullptr;
  }

  // We need to return from the signal handler so that debuggerd can dump the
  // thread that crashed, but returning here does not guarantee that the signal
  // will be thrown again, even for SIGSEGV and friends, since the signal could
  // have been sent manually. Resend the signal with rt_tgsigqueueinfo(2) to
  // preserve the SA_SIGINFO contents.
  signal(num, SIG_DFL);

  struct siginfo si;
  if (!info) {
    memset(&si, 0, sizeof(si));
    si.si_code = SI_USER;
    si.si_pid = getpid();
    si.si_uid = getuid();
    info = &si;
  } else if (info->si_code >= 0 || info->si_code == SI_TKILL) {
    // rt_tgsigqueueinfo(2)'s documentation appears to be incorrect on kernels
    // that contain commit 66dd34a (3.9+). The manpage claims to only allow
    // negative si_code values that are not SI_TKILL, but 66dd34a changed the
    // check to allow all si_code values in calls coming from inside the house.
  }

  int rc = syscall(SYS_rt_tgsigqueueinfo, getpid(), gettid(), num, info);
  if (rc != 0) {
    __android_log_print(ANDROID_LOG_FATAL, "mozglue",
                        "failed to resend signal during crash: %s",
                        strerror(errno));
    _exit(0);
  }
}

extern "C" APKOPEN_EXPORT void MOZ_JNICALL
Java_org_mozilla_gecko_mozglue_GeckoLoader_suppressCrashDialog(JNIEnv* jenv,
                                                               jclass jc) {
  MOZ_RELEASE_ASSERT(IsMediaProcess(),
                     "Suppress crash dialog only for media process");
  // Restoring to SIG_DFL will crash on x86/Android M devices (see bug 1374556)
  // so copy Android code
  // (http://androidxref.com/7.1.1_r6/xref/bionic/linker/debugger.cpp#302). See
  // comments above CatchFatalSignals() for copyright notice.
  struct sigaction action;
  memset(&action, 0, sizeof(action));
  sigemptyset(&action.sa_mask);
  action.sa_sigaction = &CatchFatalSignals;
  action.sa_flags = SA_RESTART | SA_SIGINFO;

  // Use the alternate signal stack if available so we can catch stack
  // overflows.
  action.sa_flags |= SA_ONSTACK;

  sigaction(SIGABRT, &action, nullptr);
  sigaction(SIGBUS, &action, nullptr);
  sigaction(SIGFPE, &action, nullptr);
  sigaction(SIGILL, &action, nullptr);
  sigaction(SIGSEGV, &action, nullptr);
#if defined(SIGSTKFLT)
  sigaction(SIGSTKFLT, &action, nullptr);
#endif
  sigaction(SIGTRAP, &action, nullptr);
}