ARM Compiler toolchain v4.1 for µVision Using the Compiler

Compiler Features
4.22 Automatic PreCompiled Header (PCH) file processing
The --pch command-line option enables automatic PCH file processing. This means that the
compiler automatically looks for a qualifying PCH file, and reads it if found. Otherwise, the
compiler creates one for use on a subsequent compilation.
When the compiler creates a PCH file, it takes the name of the primary source file and replaces
the suffix with .pch. The PCH file is created in the directory of the primary source file unless
the --pch_dir option is specified.
4.22.1 See also
Concepts
• Order of compiler command-line options on page 3-10
• PreCompiled Header (PCH) file processing and the header stop point on page 4-31
• PreCompiled Header (PCH) file creation requirements on page 4-32
• PreCompiled Header (PCH) files on page 4-29.
Reference
Compiler Reference:
• --pch on page 3-75
• --pch_dir=dir on page 3-75.
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