公开(公告)号：US10089126B2

公开(公告)日：2018-10-02

申请号：US13848191

申请日：2013-03-21

Applicant: VMware, Inc.

Inventor： Radu Rugina ,  Ricardo E. Gonzalez ,  Zheng He ,  Alok Kataria

IPC: G06F9/455 ,  G06F9/48 ,  G06F11/34

Abstract: Function exits are instrumented in tail-call optimized code in which calls to target functions and return instructions are replaced by jump instructions. A probe engine identifies a tail-call jump and instruments the jumps to raise an exception. In response to an exception raised at the tail-call jump, an exception handler loads various registers and transferring control to a trampoline, which calls the jump target. After the target function returns, an exit probe is fired when the trampoline itself returns.

公开(公告)号：US20140289726A1

公开(公告)日：2014-09-25

申请号：US13848191

申请日：2013-03-21

Applicant: VMWARE, INC.

Inventor： Radu Rugina ,  Ricardo E. Gonzalez ,  Zheng He ,  Alok Kataria

IPC: G06F9/455

CPC classification number: G06F9/45525 ,  G06F9/45545 ,  G06F9/4812 ,  G06F11/3409 ,  G06F11/3466 ,  G06F2201/815 ,  G06F2201/865

Abstract: Function exits are instrumented in tail-call optimized code in which calls to target functions and return instructions are replaced by jump instructions. A probe engine identifies a tail-call jump and instruments the jumps to raise an exception. In response to an exception raised at the tail-call jump, an exception handler loads various registers and transferring control to a trampoline, which calls the jump target. After the target function returns, an exit probe is fired when the trampoline itself returns.

Abstract translation: 功能出口被调用在尾调用优化代码中，其中对目标函数和返回指令的调用被跳转指令代替。 探针引擎识别尾部呼叫跳转并设置跳转以引发异常。 响应于尾部调用跳转引发的异常，异常处理程序加载各种寄存器并将控制传输到调用跳转目标的蹦床。 目标函数返回后，当蹦床本身返回时，将退出探针。