2.10. Using 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:

See Frame directives for details of these directives.

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. See the Procedure Call Standard for the ARM Architecture specification, aapcs.pdf, in install_directory\Documentation\Specifications\... for more information about stack checking qualifiers.

Be aware of the following:

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