4. Migrating C and C++ Source Code

The process of converting the C/C++ source code for an existing TI ARM application that is built with the armcl compiler so that it can be built using the tiarmclang compiler can be thought of as the process of making your C/C++ source code portable. The armcl compiler supports the use of legacy TI-specific versions of many predefined macro symbols, intrinsics, and pragmas that are not supported by other compilers. The use of such legacy TI mechanisms will render a program unbuildable by other compilers, including the tiarmclang compiler.

• 4.1. Arm C Language Extensions - ACLE
• 4.2. C/C++ Source Migration Aid Diagnostics
  • 4.2.1. Legacy TI Pragmas
  • 4.2.2. Legacy TI Pre-Defined Macro Symbols
  • 4.2.3. Legacy TI Intrinsics
  • 4.2.4. Turning Off the Migration Aid Diagnostics
• 4.3. Pre-Defined Macro Symbols
  • 4.3.1. Pre-Defined Macro Symbols that are Available in Both armcl and tiarmclang
  • 4.3.2. Converting armcl Pre-Defined Macro Symbols to tiarmclang Compatible Form
  • 4.3.3. Pre-Defined Macro Symbols in armcl that are Not Applicable in tiarmclang
  • 4.3.4. Additional Pre-Defined Macro Symbols Supported in tiarmclang
  • 4.3.5. The _AEABI_PORTABILITY_LEVEL Pre-Defined Macro Symbol
• 4.4. Intrinsics and Built-in Functions
  • 4.4.1. ACLE Compiler Intrinsics
  • 4.4.2. Non-ACLE Compiler Intrinsics
• 4.5. Pragmas and Attributes
  • 4.5.1. Pragmas
  • 4.5.2. Attributes