What is the ABI for the ARM Architecture?

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http://www.codesourcery.com/sgpp/lite/arm/portal/kbentry32

 

What is the ABI for the ARM Architecture? Is it the same as the ARM EABI?

Question

What is the ABI for the ARM Architecture? Is it the same as the ARM EABI?

Answer

The ABI for the ARM Architecture
is a standard developed by ARM and its partners that explains how
compilers, assemblers, linkers, and other similar tools should generate
object files and executable files.

Tools that correctly implement the ABI for the ARM Architecture can
interoperate; i.e., object files built with one toolchain can be
combined with object files built with another toolchain if both
compilers use the ABI for the ARM Architecture and provided that the
code compiled observes certain conventions.

CodeSourcery was an active participant in the design of the ABI for
the ARM Architecture. (In fact, the C++ ABI used by ARM is derived from
the Itanium C++ ABI co-designed by CodeSourcery.) CodeSourcery
continues to work with ARM, Ltd. to validate interoperability between
Sourcery G++ and ARM's proprietary tools.

The "ARM EABI" is an informal name for the ABI for the ARM Architecture.