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Assembler User Guide
Conventions and feedback
Overview of the Assembler
Overview of the ARM Architecture
Structure of Assembly Language Modules
Writing ARM Assembly Language
Unified Assembler Language
Subroutines calls
Load immediates into registers
Load immediate values using MOV and MVN
Load 32-bit values to a register using MOV32
Load immediate 32-bit values to a register using L
Literal pools
Load addresses into registers
Load addresses to a register using ADR
Load addresses to a register using ADRL
Load addresses to a register using LDR Rd, =label
Other ways to load and store registers
Load and store multiple register instructions
Load and store multiple instructions available in
Stack implementation using LDM and STM
Stack operations for nested subroutines
Block copy with LDM and STM
Memory accesses
Read-Modify-Write procedure
Optional hash
Use of macros
Test-and-branch macro example
Unsigned integer division macro example
Instruction and directive relocations
Symbol versions
Frame directives
Exception tables and Unwind tables
Assembly language changes after RVCTv2.1
Condition Codes
Using the Assembler
Symbols, Literals, Expressions, and Operators
VFP Programming
Assembler User Guide
Frame directives
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| Home > Writing ARM Assembly Language > Frame directives | |||
You must use frame directives to describe the way that your code uses the stack if you want to be able to do either of the following:
debug your application using stack unwinding
use either flat or call-graph profiling.
The assembler uses frame directives to insert DWARF debug frame information into the object file in ELF format that it produces. This information is required by a debugger for stack unwinding and for profiling.
Be aware of the following:
Frame directives do not affect the code produced by the assembler.
The assembler does not validate the information in frame directives against the instructions emitted.
See also- Concepts
- Reference
| Copyright © 2007-2008, 2011-2012 ARM. All rights reserved. | ARM DUI 0379D |
| Non-Confidential | ID062912 |
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| Home > Writing ARM Assembly Language > Frame directives |
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