 RealView Compiler User's Guide | |
| Home Products Events Support | |
On-Line Manuals
RealView Compiler User's Guide
Preface Introduction Getting started with the ARM Compiler Using command-line options
Invoking the ARM compiler Ordering command-line options Specifying command-line options with an environmen Autocompleting command-line options Reading compiler options from a file Specifying keyboard input File naming conventions Portability Output files Include files The current place The RVCT31INC environment variable The search path The TMP and TMPDIR environment variables Precompiled header files Automatic PCH processing Manual PCH processing Controlling the output of messages during PCH proc Performance issues Specifying the procedure call standard (AAPCS) Interworking qualifiers Position independence qualifiers Using linker feedback Thread-local storage Eight‑byte alignment features Compiler Features Coding Practices Diagnostic Messages Using the Inline and Embedded Assemblers SemihostingPrecompiled header files
  | |||
  |  | ||
| |||
| Home > Getting started with the ARM Compiler > Precompiled header files | |||
When you compile your source files, the included header files are also compiled. If a header file is included in more than one source file, it is recompiled when each source file is compiled. Also, you might include header files that introduce many lines of code, but the primary source files that include them are relatively small. Therefore, it is often desirable to avoid recompiling a set of header files by precompiling them. These are referred to as PreCompiled Header (PCH) files.
By default, when the compiler creates a PCH file, it:
takes the name of the primary source file and replaces the suffix with
.pchcreates the file in the same directory as the primary source file.
Note
Support for PCH processing is not available when you specify multiple source files in a single compilation. If you request PCH processing and specify more than one primary source file, the compiler issues an error message, and aborts the compilation.
The ARM compiler can precompile header files automatically, or enable you to control the precompilation. For more information see:
| Copyright © 2007 ARM Limited. All rights reserved. | ARM DUI 0375A |
 PDF version | |
| Home > Getting started with the ARM Compiler > Precompiled header files | |
| |
| Contact Site Map Press Privacy | Copyright © 2008 Keil™, An ARM® Company. All rights reserved. |
