Contents Acknowledgements Chapter 1: Introduction 1. Mangling 5. Additional contributions were provided by a variety of individuals. It also includes function calling interfaces, exception handling interfaces, global naming, and various object code conventions. However, it does contain processor-specific material for the Itanium bit ABI, identified as such. Where structured data layout is described, we generally assume Itanium psABI member sizes.

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In computer software , an application binary interface ABI is an interface between two binary program modules; often, one of these modules is a library or operating system facility, and the other is a program that is being run by a user. An ABI defines how data structures or computational routines are accessed in machine code , which is a low-level, hardware-dependent format; in contrast, an API defines this access in source code , which is a relatively high-level, hardware-independent, often human-readable format.

A common aspect of an ABI is the calling convention , which determines how data is provided as input to or read as output from computational routines; examples are the x86 calling conventions.

Adhering to an ABI which may or may not be officially standardized is usually the job of a compiler , operating system, or library author; however, an application programmer may have to deal with an ABI directly when writing a program in a mix of programming languages or even different compilers for the same language.

A complete ABI, such as the Intel Binary Compatibility Standard iBCS , [1] allows a program from one operating system supporting that ABI to run without modifications on any other such system, provided that necessary shared libraries are present, and similar prerequisites are fulfilled. Other [ which? An embedded-application binary interface EABI specifies standard conventions for file formats , data types, register usage, stack frame organization, and function parameter passing of an embedded software program, for use with an embedded operating system.

Compilers that support the EABI create object code that is compatible with code generated by other such compilers, allowing developers to link libraries generated with one compiler with object code generated with another compiler.

Developers writing their own assembly language code may also interface with assembly generated by a compliant compiler. EABIs are designed to optimize for performance within the limited resources of an embedded system. Therefore, EABIs omit most abstractions that are made between kernel and user code in complex operating systems. For example, dynamic linking is avoided to allow smaller executables and faster loading, fixed register usage allows more compact stacks and kernel calls, and running the application in privileged mode allows direct access to custom hardware operation without the indirection of calling a device driver.

From Wikipedia, the free encyclopedia. Computer programming portal. Freescale Semiconductor, Inc. Archived from the original on 21 January Retrieved 11 October Archived from the original on 31 March Retrieved 4 February Retrieved 27 February Application binary interface ABI.

Binary code compatibility Foreign function interface Language binding Linker dynamic Loader Year problem. Categories : Application programming interfaces Operating system technology. Hidden categories: All articles with specifically marked weasel-worded phrases Articles with specifically marked weasel-worded phrases from November Use dmy dates from February Namespaces Article Talk. Views Read Edit View history.

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Application binary interface

GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together. If nothing happens, download GitHub Desktop and try again. Go back. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Many details of the ABI cannot be changed without breaking compatibility in some way, and we cannot accept proposals to make such changes. If you are hoping to, say, change the default dispatch algorithm for virtual functions on Linux, you're not going to make much headway here.


Existing Practice

That was unsatisfactory for many reasons. When Intel produced the Itanium, they wanted to permit GCC and the Intel compiler, icc, to interoperate, including throwing exceptions between code compiled by both compilers. They formed a working group to design an ABI to support that. In a word, history. Alternatively, one could ask why Microsoft employs alternative Name mangling - Wikipedia.


Itanium C++ ABI

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. As I understand it, however, no such ABI exists. What is this passage talking about?


Itanium C++ ABI

Contents Acknowledgements Chapter 1: Introduction 1. Mangling 5. Additional contributions were provided by a variety of individuals. It is now developed as an open-source project with contributions from a variety of individuals and companies. It also includes function calling interfaces, exception handling interfaces, global naming, and various object code conventions. It does this by layering on top of a platform's base C ABI.

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