PHP で JVM を実装して、 HelloWorld を出力してみる

- PHPerKaigi 2020

- English Title:
Implement JVM with PHP and try to output Hello World

Transcript

1. / / PHPerKaigi PHP JVM HelloWorld © - BASE, Inc.
2. © - BASE, Inc. Who am I? (@m m r ) BASE 6 SDVX
3. © - BASE, Inc. Who am I?
5. © - BASE, Inc. PHPerKaigi Builderscon
6. © - BASE, Inc. php-java/php-java
7. OSS
9. © - BASE, Inc. JVM PHP
10. © - BASE, Inc. Hello World
11. JVM
12. JVM
13. © - BASE, Inc. JVM JVM Java Virtual Machine Java JVM JRE JDK
14. JVM
15. <?php exec('java HelloWorld')
16. <?php exec('java HelloWorld')
17. © - BASE, Inc. JVM Java class class JVM
18. © - BASE, Inc. JVM JVM Java Virtual Machine Specification Oracle
19. © - BASE, Inc. JVM
20. © - BASE, Inc. JVM Java class
21. © - BASE, Inc. JVM
22. © - BASE, Inc. JVM class
23. JVM
24. © - BASE, Inc. Perl PHP JavaScript / Builderscon YAPC::Kyoto PHPerKaigi Qiita JVM
25. JVM
26. © - BASE, Inc. Rust Emacs Go Ruby rchaser gongoZ DQNEO Daiki Miura JVM
27. JVM
28. JVM,
29. PHP
31. © - BASE, Inc. fopen / fread OK
33. © - BASE, Inc. 16 short, unsigned short, integer, unsigned integer pack / unpack JVM
35. PHP
36. © - BASE, Inc. PHP int (- ^ ^ - ) bool string float, double array null etc...
37. Java
38. © - BASE, Inc. Java byte char short (- ^ ^ - ) int (- ^ ^ - ) long (- ^ ^ - ) boolean float double
40. PHP Java
43. © - BASE, Inc. ( ) JVM invokevirtual iload / istore
44. Hello World
45. Java Virtual Machine Specification
46. © - BASE, Inc. JVM Spec Java Virtual Machine Specification JVM Spec JVM Spec Oracle JVM https://docs.oracle.com/javase/specs/ index.html
47. ClassFile Structure
48. © - BASE, Inc. ClassFile Structure
49. © - BASE, Inc. ClassFile Structure
50. © - BASE, Inc. JVM Spec u unsigned int u unsigned short
51. Hello World
52. © - BASE, Inc. Constant Pool Method Info Code Attribute Hello World
53. Method Info
54. © - BASE, Inc. Method Info
55. © - BASE, Inc. Method Info
56. Code Attribute
58. © - BASE, Inc. Code Attribute
59. © - BASE, Inc. Code Attribute
60. © - BASE, Inc. Code Attribute
61. © - BASE, Inc. Code Attribute
62. © - BASE, Inc. Code Attribute
63. © - BASE, Inc. Code Attribute
64. © - BASE, Inc. Code Attribute
66. © - BASE, Inc. JVM Spec code[code_length] JVM Spec
70. © - BASE, Inc. java.lang.System.out getstatic println invokevirtual
71. © - BASE, Inc. Constant Pool ldc return
72. 4
74. getstatic
75. © - BASE, Inc. getstatic getstatic getstatic Constant Pool unsigned short
76. © - BASE, Inc. getstatic getstatic <0xB > putstatic
77. © - BASE, Inc. getstatic
78. © - BASE, Inc. getstatic
79. © - BASE, Inc. getstatic
80. © - BASE, Inc. getstatic
81. © - BASE, Inc. getstatic
82. © - BASE, Inc. getstatic
83. © - BASE, Inc. getstatic
84. invokevirtual
85. © - BASE, Inc. invokevirtual invokevirtual Constant Pool
86. © - BASE, Inc. invokevirtual invokevirtual <0xB > invoke dynamic, special, interface, static
87. © - BASE, Inc. invokevirtual invoke JVM invoke invokedynamic invokeinterface
88. © - BASE, Inc. invokevirtual
89. © - BASE, Inc. invokevirtual
90. © - BASE, Inc. invokevirtual
91. © - BASE, Inc. invokevirtual
92. © - BASE, Inc. invokevirtual
93. © - BASE, Inc. invokevirtual
94. © - BASE, Inc. invokevirtual void
95. ldc
96. © - BASE, Inc. ldc ldc Constant Pool UTF Integer, short, byte Constant Pool unsigned byte
97. © - BASE, Inc. ldc ldc Long Double
98. © - BASE, Inc. ldc
99. © - BASE, Inc. ldc Constant Pool
100. © - BASE, Inc. ldc Constant Pool
101. © - BASE, Inc. ldc
102. return
103. © - BASE, Inc. return return void moniterenter return areturn, ireturn, freturn, dreturn
104. Hello World
105. © - BASE, Inc. Hello World B NN MM NN B NN MM B
106. © - BASE, Inc. Hello World B NN MM NN B NN MM B getstatic
107. © - BASE, Inc. Hello World B NN MM NN B NN MM B unsigned short
108. © - BASE, Inc. Hello World B NN MM NN B NN MM B ldc
109. © - BASE, Inc. Hello World B NN MM NN B NN MM B unsigned byte Hello World Constant Pool
110. © - BASE, Inc. Hello World B NN MM NN B NN MM B invokevirtual
111. © - BASE, Inc. Hello World B NN MM NN B NN MM B unsigned short Constant Pool
112. © - BASE, Inc. Hello World B NN MM NN B NN MM B return
114. "java.lang.System"
115. © - BASE, Inc. "java.lang.System" Java java.lang.System PHP "java\lang\System" System "out"
116. © - BASE, Inc. "java.lang.System" ;
117. "out"
118. © - BASE, Inc. "out" PHP JVM static
119. © - BASE, Inc. "out"
120. © - BASE, Inc. "out"
121. "println" "java.io.PrintStream"
122. © - BASE, Inc. "java.io.PrintStream"
123. Hello World
124. DEMO
125. THANK YOU FOR YOUR LISTENING