[B! JNI] msakamoto-sfã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

msakamoto-sf id:msakamoto-sf

JNIã«é–¢ã™ã‚‹msakamoto-sfã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (8)

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ã‚¢ãƒ—ãƒªã‚’ã‚¨ãƒŸãƒ¥ãƒ¬ãƒ¼ãƒˆã™ã‚‹ã‚¢ãƒ—ãƒªã®ç™»å ´ã¨ãã®å±é™ºæ€§ / How multi-account app works
ã“ã“æ•°å¹´ã§ã„ãã¤ã‹ã®ã€ä»–ã®Androidã‚¢ãƒ—ãƒªã‚’ã‚¨ãƒŸãƒ¥ãƒ¬ãƒ¼ãƒˆã™ã‚‹Androidã‚¢ãƒ—ãƒªãŒç™»å ´ã—ã¦ã„ã¾ã™ï¼ˆParallel Space, GO Multipleãªã©ï¼‰ã€‚ãã®å¤šããŒLINEãªã©ã®ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãƒ³ã‚°ã‚¢ãƒ—ãƒªã‚„ã‚²ãƒ¼ãƒ ãªã©ã‚’2ã‚¢ã‚«ã‚¦ãƒ³ãƒˆåŒæ™‚ä½¿ç”¨ã§ãã‚‹ã“ã¨ã‚’è¬³ã£ã¦ãŠã‚Šã€å¤šãã®ãƒ¦ãƒ¼ã‚¶ãƒ¼ã«ä½¿ã‚ã‚Œã¦ã„ã‚‹ã¨æ€ã‚ã‚Œã¾ã™ã€‚ æœ¬ã‚»ãƒƒã‚·ãƒ§ãƒ³ã§ã¯ã“ã‚Œã‚‰ã®ã‚¢ãƒ—ãƒªãŒã©ã®ã‚ˆã†ã«ã—ã¦ä»–ã®ã‚¢ãƒ—ãƒªã‚’ã‚¨ãƒŸãƒ¥ãƒ¬ãƒ¼ãƒˆã—ã¦ã„ã‚‹ã®ã‹èª¿æŸ»ã—ãŸçµæžœã¨ã€ã“ã‚Œã‚‰ã®ã‚¢ãƒ—ãƒªã‚’ä½¿ç”¨ã™ã‚‹ã“ã¨ã«ã‚ˆã‚‹å±é™ºæ€§ã®åˆ†æžã«ã¤ã„ã¦ç™ºè¡¨ã‚’è¡Œã„ã¾ã™ã€‚ Read less
msakamoto-sf 2018/02/09
security

Android

dalvik

DalvikVM

java

JNI

ãƒã‚¤ãƒŠãƒªã®é”è¡“å¸«
ãƒªãƒ³ã‚¯
Generating a Java Core Dump
This post demonstrates how you can generate a Java core dump manually (using JNI). 1. Create a Java class /** * A class to demonstrate core dumping. */ public class CoreDumper { // load the library static { System.loadLibrary("nativelib"); } // native method declaration public native void core(); public static void main(String[] args) { new CoreDumper().core(); } } 2. Compile the Java class $ java
msakamoto-sf 2017/02/18
CRaSH

java

jvm

dump

JNI
ãƒªãƒ³ã‚¯
GitHub - java-native-access/jna: Java Native Access
The definitive JNA reference (including an overview and usage details) is in the JavaDoc. Please read the overview. Questions, comments, or exploratory conversations should begin on the mailing list, although you may find it easier to find answers to already-solved probl ems on StackOverflow. JNA provides Java programs easy access to native shared libraries without writing anything but Java code -
msakamoto-sf 2014/02/16
java

JNI

jna

JVM

ãƒã‚¤ãƒŠãƒªã®é”è¡“å¸«
ãƒªãƒ³ã‚¯
Leading Managed Detection and Response | Trustwave
msakamoto-sf 2013/09/28
Security

java

JNI
ãƒªãƒ³ã‚¯
Android NDKãƒã‚¤ãƒ†ã‚£ãƒ–ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°-ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ : Happy my life
ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ã€æ¤œè¨¼ç”¨ã‚³ãƒ¼ãƒ‰ã‚’githubã«UPã—ã¾ã—ãŸ(ç™ºå£²ï¼“ãƒ¶æœˆå¾Œã«ã—ã¦â€¦) ãƒªãƒã‚¸ãƒˆãƒªã¯http://github.com/demuyan/AndroidNDKbookã§ã™ã€‚ ã“ã®ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ã¯ã€ä»¥ä¸‹ã®æ–¹æ³•ã§å®Ÿè¡Œã™ã‚‹ã¨ã‚ˆã„ã§ã—ã‚‡ã†ã€‚ Eclipseã§ã¯Import->Existing Projects into Workspaceã§å–ã‚Šè¾¼ã‚€ Importå¾Œã€Eclipseã‹ã‚‰ndk-buildã‚’å®Ÿè¡Œã§ãã‚‹ã‚ˆã†ã«è¨å®šã™ã‚‹ï¼ˆå‚è€ƒ:Eclipseã‹ã‚‰Android NDKã®ã‚³ãƒ¼ãƒ‰ã‚’ãƒ“ãƒ«ãƒ‰ã™ã‚‹ : Happy my life) ãªãŠã€ã‚³ãƒ¼ãƒ‰ã®è©³ç´°ã‚’çŸ¥ã‚ŠãŸã„æ–¹ã¯ã€Android NDKãƒã‚¤ãƒ†ã‚£ãƒ–ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‚’ãŠè²·ã„ä¸Šã’ãã ã•ã„ã€‚ ã‚µãƒ³ãƒ—ãƒ«ã‚³ãƒ¼ãƒ‰ã®è©³ç´° ç« ã”ã¨ã«åˆ†ã‘ã¦ç™»éŒ²ã•ã‚Œã¦ã„ã¾ã™ã€‚ ch02/ CalcVal/ Javaã‹ã‚‰Cã®é–¢æ•°ã‚’å‘¼ã³å‡ºã™ CalcVal2/ Javaã‹ã‚‰Cã®é–¢æ•°ã‚’å‘¼
msakamoto-sf 2011/10/29
JNI

Android
ãƒªãƒ³ã‚¯
JNIã‚ˆã‚Šç°¡å˜ã«Javaã¨C/C++ã‚’ã¤ãªãã€ŒJNAã€ã¨ã¯ï¼ˆ1/4ï¼‰ï¼ï¼ IT
ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆã®æ™®åŠã«åŠ ãˆã¦ã€ãƒªãƒƒãƒã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆï¼RIAã®ç™ºå±•ã¨ã¨ã‚‚ã«ã€ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®å½¢æ…‹ã¯ã€C/Sï¼ˆã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆ/ã‚µãƒ¼ãƒï¼‰ã‚·ã‚¹ãƒ†ãƒ ã‹ã‚‰ã€Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚·ã‚¹ãƒ†ãƒ ã«ã‚·ãƒ•ãƒˆã—ã¦ã„ã¾ã™ã€‚ä¸€èˆ¬ã®æƒ…å ±ç™ºä¿¡ã‚·ã‚¹ãƒ†ãƒ ã ã‘ã§ã¯ãªãã€ä¼æ¥ã®åŸºå¹¹æƒ…å ±ã‚·ã‚¹ãƒ†ãƒ ã¾ã§ã€ç››ã‚“ã«Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã§æ§‹ç¯‰ã™ã‚‹ã‚ˆã†ã«ãªã‚Šã¾ã—ãŸã€‚ ã“ã®å¤‰åŒ–ã®ä¸»å½¹ã§ã‚ã‚‹ã¨ã„ã‚ã‚Œã‚‹ã€Java æŠ€è¡“ã¯ã€Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚·ã‚¹ãƒ†ãƒ ã®ç™ºå±•ã¨ã¨ã‚‚ã«ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®è¦ªå’Œæ€§ã‚„ã€ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ é©ç”¨ã®å¤šæ§˜æ€§ã§ã€åºƒãå—ã‘å…¥ã‚Œã‚‰ã‚Œã¦ã€Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚·ã‚¹ãƒ†ãƒ é–‹ç™ºã®åŸºç›¤æŠ€è¡“ã«ãªã£ã¦ã„ã¾ã™ã€‚ ã“ã‚Œã¾ã§ã®C/Sã‚·ã‚¹ãƒ†ãƒ ã§ã¯ã€ã‚µãƒ¼ãƒãƒã‚¸ãƒƒã‚¯ã¯C/C++ã§å®Ÿè£…ã•ã‚Œã‚‹ã‚±ãƒ¼ã‚¹ãŒä¸€èˆ¬çš„ã§ã—ãŸã€‚C/Sã‚·ã‚¹ãƒ†ãƒ ã‹ã‚‰Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚·ã‚¹ãƒ†ãƒ ã«ã‚·ãƒ•ãƒˆã™ã‚‹éš›ã«ã€Java æŠ€è¡“ã‚’å°Žå…¥ã™ã‚‹ã“ã¨ã‚’æ±ºã‚ãŸå ´åˆã€Java æŠ€è¡“ã§ã€ã™ã¹ã¦æ–°è¦é–‹ç™ºã™ã‚‹ã®ã¯1ã¤ã®é¸æŠžè‚¢ã§ã™ãŒã€
msakamoto-sf 2009/12/16
ä¾¿åˆ©ãã†ã ãŒå‘¼ã³å‡ºã™Cãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®thread-safeã«æ³¨æ„ã™ã‚‹å¿…è¦æœ‰ã‚Šãã†ã€‚ã‚ã¨æ–‡å—ã‚³ãƒ¼ãƒ‰å‘¨ã‚Šã‚‚ã€‚ãƒã‚¤ãƒŠãƒªã¨ã®å¢ƒç•ŒãŒçµ¡ã‚€ã®ã§ã€ABI,å‘¼ã³å‡ºã—è¦ç´„,æ§‹é€ ä½“ã®paddingãªã©ã§èº“ãã¨åŽŸå› ç©¶æ˜ŽãŒå¤§å¤‰ã‹ã‚‚ã€‚

Java

JNI

Cè¨€èªž

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Java - JNI - C/C++ ãƒ‡ãƒãƒƒã‚°å…¥é–€ - mir the developer
æ˜Žã‘ã¾ã—ã¦ãŠã‚ã§ã¨ã†ã”ã–ã„ã¾ã™ã€‚ä»Šå¹´ã‚‚å®œã—ããŠé¡˜ã„ã—ã¾ã™ã€‚ ã¨ã„ã†ã‚ã‘ã§æ˜¨å¹´æœ«ã«èª¿ã¹ã¦ã„ãŸJNIãƒ—ãƒã‚°ãƒ©ãƒ ãƒ‡ãƒãƒƒã‚°æ–¹æ³•ã®ã¾ã¨ã‚ã€‚ ã“ã‚ŒãŒä¸€ç•ªå‚è€ƒã«ãªã£ãŸã€‚Debugging integrated Java and C/C++ code ã‚„ã‚ŠãŸã„äº‹ JNIãƒ—ãƒã‚°ãƒ©ãƒ ã®ãƒ‡ãƒãƒƒã‚°ã‚’ã—ãŸã„(javaã‹ã‚‰JNIçµŒç”±ã§å‘¼ã°ã‚ŒãŸC/C++ãƒ—ãƒã‚°ãƒ©ãƒ ã®ãƒ‡ãƒãƒƒã‚°ã‚’ã—ãŸã„) CUIç’°å¢ƒã§å®Œçµã—ãŸã„(å¯¾è±¡ãƒžã‚·ãƒ³ã¯ã‚µãƒ¼ãƒã§é éš”åœ°ã«ã‚ã‚ŠGUIã¯ä½¿ç”¨ä¸å¯) ã¾ã¨ã‚ ã“ã‚“ãªæ„Ÿã˜ã€‚ javac -g gcc -g JPDA(java) jdb -attach gdb --pid= â€»JPDAã¯Java Platform Debugger Architectureã®ç•¥ã€JVMã®æ©Ÿèƒ½ã®ä¸€ã¤ã€‚jdbã¯JDKä»˜å±žã®Javaç”¨ãƒ‡ãƒãƒƒã‚¬ã€‚gdbã¯ã„ã¤ã‚‚ã®GNU Debuggerã€‚ senna-javaã§ã®ä¾‹ Javaãƒ—ãƒã‚°ãƒ©ãƒ ã¨C/
msakamoto-sf 2009/07/09
jdbã¨gdbã‚’ä½µç”¨ã—ã¦ã€Javaã‚³ãƒ¼ãƒ‰ã¨JNIå†…éƒ¨ã®Cã‚³ãƒ¼ãƒ‰ã‚’ãƒ‡ãƒãƒƒã‚°ã™ã‚‹æ‰‹æ³•

Java

JNI
ãƒªãƒ³ã‚¯
JNIå®Ÿé¨“ãƒšãƒ¼ã‚¸
C++ãªã©ã®Nativeã‚³ãƒ¼ãƒ‰ã‹ã‚‰Javaã‚³ãƒ¼ãƒ‰ã‚’å‘¼ã³å‡ºã™ã€‚ VMã®ãƒãƒ¼ãƒ‰ãªã©ã®ä½™è¨ˆãªä½œæ¥ã‚’çœããŸã‚ã€Javaã‹ã‚‰å‘¼ã³å‡ºã•ã‚ŒãŸNativeã‚³ãƒ¼ãƒ‰ãŒã€ Javaå´ã®ãƒ¡ã‚½ãƒƒãƒ‰ã‚’å‘¼ã³å‡ºã™ã¨ã„ã£ãŸã‚³ãƒ¼ãƒ«ãƒãƒƒã‚¯çš„ãªã‚±ãƒ¼ã‚¹ã§ã‚„ã£ã¦ã¿ã‚ˆã†ã€‚
msakamoto-sf 2009/07/09
Java

JNI
ãƒªãƒ³ã‚¯
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