Document Revision History
This table describes the changes to Mac OS X ABI Function Call Guide.
| Date | Notes |
|---|---|
| 2009-02-04 | Made content corrections. |
| 2009-01-06 | Made minor content changes. |
Corrected IA-32 function-result–return details. | |
| 2007-04-04 | Added details about the Mac OS X x86-64 environment. |
Added cross-reference to System V x86-64 ABI document in “x86-64 Function Calling Conventions.” | |
| 2006-11-07 | Clarified parameter-passing and floating-point operation details. |
Clarified how parameters are passed in the parameter area in the PPC32 environment in “Stack Structure.” | |
Clarified how arrays and structures are placed in the parameter area in the PPC64 environment in “Stack Structure.” | |
Indicated how floating point operations are performed in the IA-32 environment in “IA-32 Function Calling Conventions.” | |
Clarified how structures are returned in the IA-32 environment in “Returning Results.” | |
| 2006-04-04 | Corrected description of natural alignment in the PPC and PPC64 architectures, and clarified stack-alignment details in the IA32 architecture. |
Corrected the data types that yield better performance when using natural alignment in “32-bit PowerPC Function Calling Conventions” and “64-bit PowerPC Function Calling Conventions.” | |
Specified that function callers are responsible for aligning the stack at 16-byte boundaries at the point of function calls in “IA-32 Function Calling Conventions.” | |
| 2006-01-10 | Specified when called functions remove parameters from the stack upon return in the Mac OS X IA-32 ABI. |
Updated “Passing Arguments” and “Returning Results” to describe how compiler-generated parameters are handled by called functions. | |
| 2005-12-06 | Changed the alignment values and red zone limits for 64-bit programs to their correct values. |
| 2005-11-09 | New document that describes the function-calling conventions used in the architectures supported by Mac OS X. Replaces information previously published in "PowerPC Runtime Architecture Guide." |
© 2009 Apple Inc. All Rights Reserved. (Last updated: 2009-02-04)