ConceptSysV ABI

System V ABI

An application binary interface standard widely used on Linux and Unix systems, specifying function calling conventions and register usage.

Timeline (last 90 days)

Oct 15

The System V ABI for x86-64 uses %rsp as the stack pointer, and function prologues and epilogues are built around it.

Unverified50%

Sep 6

The System V ABI defines a 128-byte red zone—a region below RSP—that leaf functions can use directly without adjusting the stack pointer.

Unverified50%

The System V ABI for x86-64 uses %rsp as the stack pointer, and function prologues and epilogues are built around it.

The System V ABI defines a 128-byte red zone—a region below RSP—that leaf functions can use directly without adjusting the stack pointer.