JPH04264924A - Complier - Google Patents

Abstract

PURPOSE:To enable plural programs to be compiled by loading one time a vocabulary analysis processing part, a syntax analysis processing part, a meaning analysis processing part, and a code generation processing part respectively by providing a program control means for the code generation processing part to control the code generation processing part so as to output plural object programs. CONSTITUTION:The code generation processing part 10 is controlled by the program control means 6 for the code generation processing part. Namely, first of all, a text is inputted from a place shown by the text starting address area of the first entry of a program control table 13 for the meaning analysis processing part in an intermediate text file 16, and usual code generation is executed. Then, the object program of the name of the program shown by the program name area of the first entry of the meaning analyzing program control table 13 is generated in an object program library. Then, this is repeated until the entry of the program control table 13 for the meaning analysis processing part is finished.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compiler, and more particularly to a compiler that compiles multiple source programs at once.

0002

2. Description of the Related Art A conventional batch compilation processing method uses a method in which a compiler is operated once for each program unit to generate a target program for a plurality of specified programs.

0003

[Problems to be Solved by the Invention] In the above-mentioned conventional compiler, the compiler operates repeatedly for the number of specified programs, so the lexical analysis processing section, syntax analysis processing section, semantic analysis processing section and There is a drawback that each processing section of the code generation processing section must be loaded each time.

0004

[Problems to be Solved by the Invention] The compiler of the present invention, in a compiler that compiles multiple source programs at once, manages intermediate text for each translation unit of the program at each stage of compiling the source programs to obtain the target program. A program management table for the lexical analysis processing section, a program management table for the syntactic analysis processing section,
A lexical analysis processing unit program management means that has a semantic analysis processing unit program management table and a code generation processing unit program management table, and controls intermediate text output by the lexical analysis processing unit, and a syntactic analysis processing unit. A program management means for a syntactic analysis processing unit that controls intermediate text to be input and output by the semantic analysis processing unit, a program management unit for a semantic analysis processing unit that controls intermediate text input and output by the semantic analysis processing unit, and a code generation processing unit that has a plurality of target programs. The present invention is characterized in that it is provided with a program management means for the code generation processing section that controls the output of the code generation processing section.

[0005]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a flow chart showing one embodiment of the present invention. With reference to FIG. 1, the processing of the compiler 2 when a plurality of source programs such as source program a and source program b existing in the source program library 1 are compiled at once will be described.

First, before starting compilation, a program management table 11 for the lexical analysis processing section and a program management table 11 for the syntactic analysis processing section, each containing a program name and a text start address as one entry, and entries for the number of programs to be compiled at once. The table 12 and the program management table 13 for the semantic analysis processing section are each secured as areas.

The lexical analysis processing unit 7 extracts a specified source program from the source program library 1, performs lexical analysis processing, and outputs intermediate text to be passed to the syntactic analysis processing unit 8 to an intermediate text file 14. I do.

The vocabulary analysis processing section 7 is controlled by the vocabulary analysis processing section program management means 3 as follows. First, 1 of the program management table 11 for the vocabulary analysis processing section
Set the program name of the source program to be compiled first in the program name area of the entry, and specify the start address on the text file 14 where intermediate text generated by lexical analysis processing for that source program is output. It is set in the text start address area of the first entry in the program management table 11 for the vocabulary analysis processing section.

[0010] Then, normal vocabulary analysis processing is performed on the source program. At that time, the intermediate text is output from the position indicated by the text start address area of the program management table 11 for the vocabulary analysis processing section on the intermediate text file 14.

Next, if the specified source program still exists, the program name area and text start address area of the next entry in the program management table 11 for the vocabulary analysis processing section are set as the next source program. The settings are made as described above, and vocabulary analysis processing is performed on the source program. This is repeated until the specified source program is completed, and the vocabulary analysis process is completed.

The syntactic analysis processing unit 8 extracts the intermediate text from the lexical analysis processing unit 7 from the intermediate text file 14, performs syntactic analysis processing using it as input text, and generates an intermediate text to be passed to the semantic analysis processing unit 9. A process is performed to output the file to the intermediate text file 15.

The syntax analysis processing section 8 is controlled by the syntax analysis processing section program management means 4 as follows. First, the program name of the first entry of the program management table 11 for the vocabulary analysis processing section is set in the program name area of the first entry of the program management table 12 for the syntax analysis processing section, and the program is subjected to the syntax analysis processing for the program. The start address on the intermediate text file 15 to which the intermediate text to be generated is output is set in the text start address area of the first entry of the program management table 12 for the syntax analysis processing section.

[0014] Then, in the intermediate text file 14,
Text is input from the location indicated by the text start address area of the first entry in the program management table 11 for the vocabulary analysis processing section, and normal syntax analysis processing is performed. then,
The intermediate text is output from the position indicated by the text start address area of the program management table 12 for the syntax analysis processing section on the intermediate text file 15.

Next, if there are still entries in the program management table 11 for the vocabulary analysis processing section, the next entry in the program management table 11 for the vocabulary analysis processing section is designated as the program, and the program for the syntax analysis processing section is The program name area and text start address area of the next entry in the management table 12 are set as described above, and the syntax analysis process for the program is performed. This is repeated until the entries in the lexical analysis processing unit program management table 11 are completed, and the syntactic analysis processing is completed.

The semantic analysis processing unit 9 extracts the intermediate text from the syntactic analysis processing unit 8 from the intermediate text file 15, performs semantic analysis processing on it as input text, and generates an intermediate text to be passed to the code generation processing unit 10. A process is performed to output the file to the intermediate text file 16.

The semantic analysis processing section 9 is controlled by the semantic analysis processing section program management means 5 as follows. First, the program name of the first entry of the program management table 12 for the syntax analysis processing section is set in the program name area of the first entry of the program management table 13 for the semantic analysis processing section, and the program is subjected to semantic analysis processing for the program. The start address on the intermediate text file 16 to which the intermediate text to be generated is output is set in the text start address area of the first entry of the program management table 13 for the semantic analysis processing section.

[0018] Then, in the intermediate text file 15,
Text is input from the location indicated by the text start address area of the first entry in the program management table 12 for the syntax analysis processing section, and normal semantic analysis processing is performed. then,
The intermediate text is output from the position indicated by the text start address area of the program management table 13 for the semantic analysis processing section on the intermediate text file 16.

Next, if there are still entries in the program management table 12 for the syntactic analysis processing section, the next entry in the program management table 12 for the syntactic analysis processing section is designated as the program, and the program for the semantic analysis processing section is The program name area and text start address area of the next entry in the management table 13 are set as described above, and the semantic analysis process for the program is performed. This is repeated until the entries in the program management table 12 for the syntactic analysis processing section are completed, and the semantic analysis processing is completed.

The code generation processing unit 10 extracts the intermediate text from the semantic analysis processing unit 9 from the intermediate text file 16, performs code generation processing using it as input text, and outputs the target program into the target program library 17. Perform processing.

The code generation processing section 10 is controlled by the code generation processing section program management means 6 as follows. First, text is input from the location indicated by the text start address area of the entry number of the program management table 13 for the semantic analysis processing unit in the intermediate text file 16, and normal code generation processing is performed. A target program with the program name indicated in the program name area of the first entry of the program management table 13 for the analysis processing unit is generated.

Next, if there are still entries in the program management table 13 for the semantic analysis processing section, the next entry in the program management table 13 for the semantic analysis processing section is designated as the program, and code generation processing for the program is performed. Execute as described above and output the target program. This is repeated until the entries in the program management table 13 for the semantic analysis processing section are completed, and the code generation process is completed and the compiler 2 is also terminated.

[0023]

Effects of the Invention As explained above, in the present invention, when performing batch compilation, the compiler does not repeatedly operate for the specified number of programs and completes the operation in one operation. , the syntactic analysis processing section, the semantic analysis processing section, and the code generation processing section each need to be loaded once. Therefore, deterioration in compiler performance due to loading of each processing unit can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the structure within a compiler and the flow of each process and text of a means for implementing the present invention.

[Explanation of symbols]

1 Source program library 2 Compiler 3 Program management means for vocabulary analysis processing section 4
Program management means for syntax analysis processing section 5 Program management means for semantic analysis processing section 6 Program management means for code generation processing section 7 Vocabulary analysis processing section 8 Syntax analysis processing section 9 Semantic analysis processing section 10 Code generation processing section 11 Vocabulary analysis processing Department program management table 12 Syntax analysis processing section program management table 13 Semantic analysis processing section program management table 14 Intermediate text file 15 Intermediate text file 16 Intermediate text file

Claims (1)

[Claims] 1. In a compiler that compiles multiple source programs at once, a program management table for a lexical analysis processing unit that manages intermediate text for each program translation unit at each stage of compiling source programs to obtain a target program; A program management table for the syntactic analysis processing section, a program management table for the semantic analysis processing section, and a program management table for the code generation processing section, and for controlling the intermediate text output by the vocabulary analysis processing section. A program management means, a program management means for a syntactic analysis processing section that controls intermediate text input and output by the syntax analysis processing section, and a program management means for a semantic analysis processing section that controls intermediate text input and outputted by the semantic analysis processing section. A compiler comprising: program management means for a code generation processing section that controls output of a plurality of target programs by the code generation processing section.