From 5873deb7af12aa2b84221e9e12e0dc7ca5807f0a Mon Sep 17 00:00:00 2001 From: Glavo Date: Wed, 11 Apr 2018 14:38:54 +0800 Subject: update --- .gitignore | 19 ++ README.md | 1 + build.gradle | 35 ++++ gradle/wrapper/gradle-wrapper.jar | Bin 0 -> 54329 bytes gradle/wrapper/gradle-wrapper.properties | 5 + gradlew | 172 +++++++++++++++++ gradlew.bat | 84 +++++++++ .../classes/org/glavo/javah/Generator.class | Bin 0 -> 2275 bytes .../classes/org/glavo/javah/HeaderGenerator.class | Bin 0 -> 6322 bytes .../classes/org/glavo/javah/MethodDesc.class | Bin 0 -> 444 bytes settings.gradle | 2 + src/main/java/org/glavo/javah/HeaderGenerator.java | 209 +++++++++++++++++++++ .../java/org/glavo/javah/HeaderGeneratorTest.java | 14 ++ 13 files changed, 541 insertions(+) create mode 100644 .gitignore create mode 100644 build.gradle create mode 100644 gradle/wrapper/gradle-wrapper.jar create mode 100644 gradle/wrapper/gradle-wrapper.properties create mode 100755 gradlew create mode 100644 gradlew.bat create mode 100644 out/production/classes/org/glavo/javah/Generator.class create mode 100644 out/production/classes/org/glavo/javah/HeaderGenerator.class create mode 100644 out/production/classes/org/glavo/javah/MethodDesc.class create mode 100644 settings.gradle create mode 100644 src/main/java/org/glavo/javah/HeaderGenerator.java create mode 100644 src/test/java/org/glavo/javah/HeaderGeneratorTest.java diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..dca3b96 --- /dev/null +++ b/.gitignore @@ -0,0 +1,19 @@ +# Created by .ignore support plugin (hsz.mobi) +### Gradle template +.gradle +/build/ + +# Ignore Gradle GUI config +gradle-app.setting + +# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored) +!gradle-wrapper.jar + +# Cache of project +.gradletasknamecache + +# # Work around https://youtrack.jetbrains.com/issue/IDEA-116898 +# gradle/wrapper/gradle-wrapper.properties + +*.iml +.idea/ \ No newline at end of file diff --git a/README.md b/README.md index 562fa82..54ea893 100644 --- a/README.md +++ b/README.md @@ -1 +1,2 @@ # gjavah + diff --git a/build.gradle b/build.gradle new file mode 100644 index 0000000..8cc9f05 --- /dev/null +++ b/build.gradle @@ -0,0 +1,35 @@ +group 'org.glavo' +version '0.1.0' + +apply plugin: 'java' + +sourceCompatibility = 1.6 +targetCompatibility = 1.6 + +repositories { + mavenCentral() +} + +dependencies { + compile group: 'org.ow2.asm', name: 'asm', version: '6.1.1' + + testCompile group: 'junit', name: 'junit', version: '4.12' +} + +jar { + manifest { + attributes 'Implementation-Version': '1.2', + 'Main-Class': 'org.glavo.javah.HeaderGenerator' + } +} + +task fatJar(type: Jar) { + baseName = project.name + '-all' + description = 'Assembles a jar archive containing the main classes and all the dependencies.' + from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } } + manifest { + attributes 'Implementation-Version': '1.2', + 'Main-Class': 'org.glavo.javah.HeaderGenerator' + } + with jar +} \ No newline at end of file diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..01b8bf6 Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..933b647 --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-bin.zip diff --git a/gradlew b/gradlew new file mode 100755 index 0000000..cccdd3d --- /dev/null +++ b/gradlew @@ -0,0 +1,172 @@ +#!/usr/bin/env sh + +############################################################################## +## +## Gradle start up script for UN*X +## +############################################################################## + +# Attempt to set APP_HOME +# Resolve links: $0 may be a link +PRG="$0" +# Need this for relative symlinks. +while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG=`dirname "$PRG"`"/$link" + fi +done +SAVED="`pwd`" +cd "`dirname \"$PRG\"`/" >/dev/null +APP_HOME="`pwd -P`" +cd "$SAVED" >/dev/null + +APP_NAME="Gradle" +APP_BASE_NAME=`basename "$0"` + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS="" + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD="maximum" + +warn () { + echo "$*" +} + +die () { + echo + echo "$*" + echo + exit 1 +} + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "`uname`" in + CYGWIN* ) + cygwin=true + ;; + Darwin* ) + darwin=true + ;; + MINGW* ) + msys=true + ;; + NONSTOP* ) + nonstop=true + ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD="java" + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then + MAX_FD_LIMIT=`ulimit -H -n` + if [ $? -eq 0 ] ; then + if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then + MAX_FD="$MAX_FD_LIMIT" + fi + ulimit -n $MAX_FD + if [ $? -ne 0 ] ; then + warn "Could not set maximum file descriptor limit: $MAX_FD" + fi + else + warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" + fi +fi + +# For Darwin, add options to specify how the application appears in the dock +if $darwin; then + GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" +fi + +# For Cygwin, switch paths to Windows format before running java +if $cygwin ; then + APP_HOME=`cygpath --path --mixed "$APP_HOME"` + CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` + JAVACMD=`cygpath --unix "$JAVACMD"` + + # We build the pattern for arguments to be converted via cygpath + ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` + SEP="" + for dir in $ROOTDIRSRAW ; do + ROOTDIRS="$ROOTDIRS$SEP$dir" + SEP="|" + done + OURCYGPATTERN="(^($ROOTDIRS))" + # Add a user-defined pattern to the cygpath arguments + if [ "$GRADLE_CYGPATTERN" != "" ] ; then + OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" + fi + # Now convert the arguments - kludge to limit ourselves to /bin/sh + i=0 + for arg in "$@" ; do + CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` + CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option + + if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition + eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` + else + eval `echo args$i`="\"$arg\"" + fi + i=$((i+1)) + done + case $i in + (0) set -- ;; + (1) set -- "$args0" ;; + (2) set -- "$args0" "$args1" ;; + (3) set -- "$args0" "$args1" "$args2" ;; + (4) set -- "$args0" "$args1" "$args2" "$args3" ;; + (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; + (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; + (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; + (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; + (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; + esac +fi + +# Escape application args +save () { + for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done + echo " " +} +APP_ARGS=$(save "$@") + +# Collect all arguments for the java command, following the shell quoting and substitution rules +eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" + +# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong +if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then + cd "$(dirname "$0")" +fi + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..e95643d --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,84 @@ +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS= + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto init + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto init + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:init +@rem Get command-line arguments, handling Windows variants + +if not "%OS%" == "Windows_NT" goto win9xME_args + +:win9xME_args +@rem Slurp the command line arguments. +set CMD_LINE_ARGS= +set _SKIP=2 + +:win9xME_args_slurp +if "x%~1" == "x" goto execute + +set CMD_LINE_ARGS=%* + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/out/production/classes/org/glavo/javah/Generator.class b/out/production/classes/org/glavo/javah/Generator.class new file mode 100644 index 0000000..cc55414 Binary files /dev/null and b/out/production/classes/org/glavo/javah/Generator.class differ diff --git a/out/production/classes/org/glavo/javah/HeaderGenerator.class b/out/production/classes/org/glavo/javah/HeaderGenerator.class new file mode 100644 index 0000000..e59a371 Binary files /dev/null and b/out/production/classes/org/glavo/javah/HeaderGenerator.class differ diff --git a/out/production/classes/org/glavo/javah/MethodDesc.class b/out/production/classes/org/glavo/javah/MethodDesc.class new file mode 100644 index 0000000..bdbf58d Binary files /dev/null and b/out/production/classes/org/glavo/javah/MethodDesc.class differ diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 0000000..55c044f --- /dev/null +++ b/settings.gradle @@ -0,0 +1,2 @@ +rootProject.name = 'gjavah' + diff --git a/src/main/java/org/glavo/javah/HeaderGenerator.java b/src/main/java/org/glavo/javah/HeaderGenerator.java new file mode 100644 index 0000000..368b2d5 --- /dev/null +++ b/src/main/java/org/glavo/javah/HeaderGenerator.java @@ -0,0 +1,209 @@ +package org.glavo.javah; + +import org.objectweb.asm.*; + +import java.io.*; +import java.util.LinkedHashMap; +import java.util.LinkedHashSet; +import java.util.Map; +import java.util.Set; + +public final class HeaderGenerator { + private static String escape(String source) { + StringBuilder builder = new StringBuilder(); + char ch; + for (int i = 0; i < source.length(); i++) { + switch (ch = source.charAt(i)) { + case '_': + builder.append("_1"); + break; + case ';': + builder.append("_2"); + break; + case '[': + builder.append("_3"); + break; + case '/': + builder.append('.'); + break; + default: + if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z')) { + builder.append(ch); + } else { + builder.append("_0").append(String.format("%04x", (int) ch)); + } + } + } + return builder.toString(); + } + + private static String typeToNative(Type tpe) { + if (tpe == Type.BOOLEAN_TYPE) { + return "jboolean"; + } else if (tpe == Type.BYTE_TYPE) { + return "jbyte"; + } else if (tpe == Type.CHAR_TYPE) { + return "jchar"; + } else if (tpe == Type.SHORT_TYPE) { + return "jshort"; + } else if (tpe == Type.INT_TYPE) { + return "jint"; + } else if (tpe == Type.LONG_TYPE) { + return "jlong"; + } else if (tpe == Type.FLOAT_TYPE) { + return "jfloat"; + } else if (tpe == Type.DOUBLE_TYPE) { + return "jdouble"; + } else if (tpe == Type.VOID_TYPE) { + return "void"; + } else { + String str = tpe.toString(); + if (str.startsWith("[")) { + str = typeToNative(tpe.getElementType()); + if ("jclass".equals(str)) { + return "jobjectArray"; + } else { + return str + "Array"; + } + } + return "jobject"; //TODO: jthrowable + } + } + + public static void generateHeader(ClassReader reader, PrintWriter output) { + output.println("/* DO NOT EDIT THIS FILE - it is machine generated */"); + output.println("#include "); + + Generator generator = new Generator(); + reader.accept(generator, ClassReader.SKIP_CODE | ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES); + + StringBuilder builder = new StringBuilder(); + String className = escape(generator.getClassName()); + + output.println("/* Header for class " + className + " */"); + + String includeHeader = "_Include_" + className; + output.println("#ifndef " + includeHeader); + output.println("#define " + includeHeader); + + output.println("#ifdef __cplusplus\n" + + "extern \"C\" {\n" + + "#endif"); + + for (Map.Entry> entry : generator.getMethods().entrySet()) { + boolean overload = entry.getValue().size() > 1; + for (MethodDesc desc : entry.getValue()) { + String methodName = escape(entry.getKey()); + output.println("/*" + "\n" + + " * Class: " + className + "\n" + + " * Method: " + entry.getKey() + "\n" + + " * Signature: " + desc.descriptor + "\n" + + " */" + ); + + Type[] argTypes = Type.getArgumentTypes(desc.descriptor); + Type retType = Type.getReturnType(desc.descriptor); + + output.print( + "JNIEXPORT " + typeToNative(retType) + " JNICALL Java_" + className + "_" + methodName + ); + + if (overload) { + output.print("__"); + for (Type tpe : argTypes) { + output.print(escape(tpe.toString())); + } + } + output.println(); + + output.print(" (JNIEnv *, "); + if (desc.isStatic) { + output.print("jclass"); + } else { + output.print("jobject"); + } + for (Type tpe : argTypes) { + output.print(", " + typeToNative(tpe)); + } + output.println(");\n"); + } + + } + + output.println("#ifdef __cplusplus\n" + + "}\n" + + "#endif\n" + + "#endif\n"); + + } + + public static void generateHeader(byte[] classFile, PrintWriter output) { + generateHeader(new ClassReader(classFile), output); + } + + public static void generateHeader(byte[] classFileBuffer, int classFileOffset, int classFileLength, PrintWriter output) { + generateHeader(new ClassReader(classFileBuffer, classFileOffset, classFileLength), output); + } + + public static void generateHeader(String className, PrintWriter output) throws IOException { + generateHeader(new ClassReader(className), output); + } + + public static void generateHeader(InputStream input, PrintWriter output) throws IOException { + generateHeader(new ClassReader(input), output); + } + + public static void main(String[] args) throws IOException { + File f = new File(args[0]); + PrintWriter writer = new PrintWriter(System.out); + generateHeader(new FileInputStream(f), writer); + writer.flush(); + } +} + +class MethodDesc { + public final boolean isStatic; + public final String descriptor; + + public MethodDesc(boolean isStatic, String descriptor) { + this.isStatic = isStatic; + this.descriptor = descriptor; + } +} + +class Generator extends ClassVisitor { + private String className; + + private Map> methods = new LinkedHashMap>(); + + public Generator() { + super(Opcodes.ASM5); + } + + @Override + public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) { + className = name; + } + + @Override + public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) { + if ((access & Opcodes.ACC_NATIVE) != 0) { + if (methods.containsKey(name)) { + methods.get(name).add(new MethodDesc((access & Opcodes.ACC_STATIC) != 0, descriptor)); + } else { + LinkedHashSet set = new LinkedHashSet(); + set.add(new MethodDesc((access & Opcodes.ACC_STATIC) != 0, descriptor)); + methods.put(name, set); + } + } + return null; + } + + public String getClassName() { + return className; + } + + public Map> getMethods() { + return methods; + } +} \ No newline at end of file diff --git a/src/test/java/org/glavo/javah/HeaderGeneratorTest.java b/src/test/java/org/glavo/javah/HeaderGeneratorTest.java new file mode 100644 index 0000000..97e3e33 --- /dev/null +++ b/src/test/java/org/glavo/javah/HeaderGeneratorTest.java @@ -0,0 +1,14 @@ +package org.glavo.javah; + +import org.junit.Test; + +import java.io.IOException; +import java.io.PrintWriter; + +public class HeaderGeneratorTest { + public static void main(String[] args) throws IOException { + PrintWriter writer = new PrintWriter(System.out); + HeaderGenerator.generateHeader("java.lang.System", writer); + writer.flush(); + } +} -- cgit v1.2.3