RealView Compilation Tools Developer Guide - ARM Information ...

Contents
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Appendix A
Interworking ARM and Thumb
4.1 About interworking ...................................................................................... 4-2
4.2 Assembly language interworking ................................................................ 4-7
4.3 C and C++ interworking and veneers ....................................................... 4-13
4.4 Assembly language interworking using veneers ...................................... 4-18
Mixing C, C++, and Assembly Language
5.1 Using the inline and embedded assemblers ............................................... 5-2
5.2 Accessing C global variables from assembly code .................................... 5-4
5.3 Using C header files from C++ ................................................................... 5-5
5.4 Calling between C, C++, and ARM assembly language ............................. 5-7
Handling Processor Exceptions
6.1 About processor exceptions ....................................................................... 6-2
6.2 Determining the processor state ................................................................. 6-6
6.3 Entering and leaving an exception ............................................................. 6-8
6.4 Handling an exception .............................................................................. 6-13
6.5 Installing an exception handler ................................................................. 6-14
6.6 SVC handlers ........................................................................................... 6-19
6.7 Interrupt handlers ..................................................................................... 6-28
6.8 Reset handlers ......................................................................................... 6-38
6.9 Undefined Instruction handlers ................................................................. 6-39
6.10 Prefetch Abort handler .............................................................................. 6-40
6.11 Data Abort handler ................................................................................... 6-41
6.12 System mode ............................................................................................ 6-42
Handling Cortex-M3 Processor Exceptions
7.1 About Cortex-M3 processor exceptions ..................................................... 7-2
7.2 Writing the exception table ....................................................................... 7-10
7.3 Writing the exception handlers ................................................................. 7-12
7.4 Placing the exception table ....................................................................... 7-13
7.5 Configuring the System Control Space registers ...................................... 7-14
7.6 Configuring individual IRQs ...................................................................... 7-16
7.7 Supervisor calls ........................................................................................ 7-17
7.8 System timer ............................................................................................. 7-19
7.9 Porting exception handling code written for other ARM processors ......... 7-21
Debug Communications Channel
8.1 About the Debug Communications Channel .............................................. 8-2
8.2 Target transfer of data ................................................................................ 8-3
8.3 Polled debug communications .................................................................... 8-4
8.4 Interrupt-driven debug communications ..................................................... 8-8
8.5 Access from Thumb state ........................................................................... 8-9
Semihosting
A.1 About semihosting ...................................................................................... A-2
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