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RealView Libraries and Floating Point Support Guide
Preface Introduction About the runtime libraries
ABI for the ARM Architecture compliance Library directory structure Build options and library variants Thumb C libraries About floating‑point support The C and C++ Libraries The C Micro-library Floating‑point SupportBuild options and library variants
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| Home > Introduction > About the runtime libraries > Build options and library variants | |||
When you build your application, you must make certain choices. For example:
- Target Architecture and instruction set
ARM, Thumb®, or Thumb-2.
- Byte order
Big‑endian or little‑endian.
- Floating‑point support
Software (SoftVFP), hardware (VFP), or none.
- Position‑independence
Data can be read/write position‑independent or position‑dependent.
Code can be read‑only position‑independent or position‑dependent.
Note
Not supported in microlib.
When you link your assembly language, C, or C++ code, the linker selects appropriate C and C++ library variants compatible with the build options you specified. There is a variant of the ISO C library for each combination of major build options.
For more information see:
Chapter 6 Using the ARM Librarian in the Linker Guide
Specifying the procedure call standard (AAPCS) in the Compiler User Guide
the Assembler Guide.
| Copyright © 2007 ARM Limited. All rights reserved. | ARM DUI 0378A |
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