RealView Compilation Tools Developer Guide - ARM Information ...

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Embedded Software Development HL 0x28080000 HB SB HEAP STACK 0x28000000 0x40000 Figure 2-10 Two-region model Example 2-6 Two-region model routine IMPORT __use_two_region_memory EXPORT __user_initial_stackheap __user_initial_stackheap LDR r0, =0x28000000 ;HB LDR r1, =0x40000 ;SB LDR r2, =0x28080000 ;HL ; r3 not used MOV pc, lr 2.4.8 Example code for Build 3 Build 3 of the example implements scatter-loading and contains a re-implemented __user_initial_stackheap(). See the example build files in the main examples directory, in ...\emb_sw_dev\build3. The following modifications have been made to Build 2 of the example project: Scatter-loading A simple scatter-loading description file is passed to the linker. Retargeted __user_initial_stackheap() You have the option of selecting either a one-region or a two-region implementation. The default build uses one region. You can select the two-region implementation by defining TWO_REGION_MODEL when assembling. 2-22 Copyright © 2002-2007 ARM Limited. All rights reserved. ARM DUI 0203H Non-Confidential
Embedded Software Development Avoiding C library Semihosting The symbol __use_no_semihosting is imported into Build 3, because there are no longer any C library semihosting functions present in the image. Note To avoid using semihosting for clock(), this is retargeted to read the Real Time Clock (RTC) on the Integrator AP. This has a resolution of one second, so the results from Dhrystone are not precise. This mechanism is improved in Build 4, see Example code for Build 4 on page 2-34. To run this build on an Integrator AP, you must perform ROM/RAM remapping. To do this, set switches 1 and 4 to ON to run the Boot Monitor. See Running the Dhrystone builds on an Integrator on page 2-3. Note You must disable all Vector Catch and semihosting if you are using an ARM7 core-based target. Otherwise the debugger interprets the execution of instructions between address 0x0 and 0x1C as exceptions, and reports this in a dialog box. See your debugger documentation for information about how to disable Vector Catch and semihosting. ARM DUI 0203H Copyright © 2002-2007 ARM Limited. All rights reserved. 2-23 Non-Confidential
Page 1 and 2: ® RealView Compilation Tools Versi
Page 3 and 4: Product Status The information in t
Page 5 and 6: Contents RealView Compilation Tools
Page 7 and 8: Contents A.2 Semihosting implementa
Page 9 and 10: Preface This preface introduces the
Page 11 and 12: Preface Chapter 6 Handling Processo
Page 13 and 14: Preface • ARM Architecture Refere
Page 15 and 16: Chapter 1 Introduction This chapter
Page 17 and 18: Introduction 1.2 Developing for the
Page 19 and 20: Introduction 1.2.4 Handling process
Page 21 and 22: Introduction 1.2.6 Compatibility wi
Page 23 and 24: Chapter 2 Embedded Software Develop
Page 25 and 26: Embedded Software Development Note
Page 27 and 28: Embedded Software Development 2.2.1
Page 33 and 34: Embedded Software Development __rt_
Page 35 and 36: Embedded Software Development Examp
Page 37 and 38: Embedded Software Development 2.4 T
Page 43: Embedded Software Development SB ST
Page 47 and 48: Embedded Software Development Table
Page 49 and 50: Embedded Software Development Prote
Page 51 and 52: Embedded Software Development 1 2 3
Page 53 and 54: Embedded Software Development To av
Page 57 and 58: Embedded Software Development 2.6 O
Page 61 and 62: Chapter 3 Writing Position Independ
Page 63 and 64: Writing Position Independent Code a
Page 65 and 66: Writing Position Independent Code a
Page 67 and 68: Chapter 4 Interworking ARM and Thum
Page 69 and 70: Interworking ARM and Thumb 4.1.2 Wh
Page 71 and 72: Interworking ARM and Thumb For exam
Page 73 and 74: Interworking ARM and Thumb 4.2 Asse
Page 75 and 76: Interworking ARM and Thumb 4.2.3 Ex
Page 77 and 78: Interworking ARM and Thumb 4. Run t
Page 79 and 80: Interworking ARM and Thumb 4.3 C an
Page 81 and 82: Interworking ARM and Thumb 3. To li
Page 83 and 84: Interworking ARM and Thumb Example
Page 89 and 90: Chapter 5 Mixing C, C++, and Assemb
Page 91 and 92: Mixing C, C++, and Assembly Languag
Page 93 and 94: Mixing C, C++, and Assembly Languag
Page 95 and 96:
Mixing C, C++, and Assembly Languag
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Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Chapter 6 Handling Processor Except
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Handling Processor Exceptions 6.1.1
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Page 113 and 114:
Handling Processor Exceptions Examp
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Page 117 and 118:
Handling Processor Exceptions instr
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Handling Processor Exceptions 6.4 H
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Handling Processor Exceptions LDR N
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Page 125 and 126:
Handling Processor Exceptions 6.6 S
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Handling Processor Exceptions The t
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Handling Processor Exceptions } pri
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Handling Processor Exceptions • e
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Handling Processor Exceptions In AR
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Page 141 and 142:
Handling Processor Exceptions Byte
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Handling Processor Exceptions Figur
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Handling Processor Exceptions 6.9 U
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Handling Processor Exceptions 6.11
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Chapter 7 Handling Cortex-M3 Proces
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Handling Cortex-M3 Processor Except
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Page 169 and 170:
Page 171 and 172:
Chapter 8 Debug Communications Chan
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Debug Communications Channel 8.2 Ta
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Debug Communications Channel 8.3.2
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Debug Communications Channel Exampl
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Debug Communications Channel 8.5 Ac
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Appendix A Semihosting This chapter
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Semihosting printf("hello\n"); Appl
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Semihosting Changing the semihostin
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Semihosting A.2.4 RealMonitor RealM
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Semihosting A.3.2 angel_SWIreason_R
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Semihosting A.3.3 SYS_CLOSE (0x02)
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Semihosting Return On exit, r0 cont
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Semihosting Return On exit, r1 cont
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Semihosting The file position is at
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Semihosting A.3.17 SYS_SEEK (0x0A)
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Semihosting Entry There are no para
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Semihosting Return None. Register r
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