Lists

Terms and Conditions
Lists hosted on this site
Email the Postmaster
Tips for posting to public mailing lists

__darwin_i386_exception_state, cr2 and faultvaddr

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

__darwin_i386_exception_state, cr2 and faultvaddr

Subject: __darwin_i386_exception_state, cr2 and faultvaddr
From: Joel Reymont <email@hidden>
Date: Mon, 19 Jan 2009 22:16:24 +0000

I've been looking at /usr/include/mach/i386/_structs.h and xnu/bsd/dev/ i386/unix_signal.c (sendsig) for quite a while but I don't understand the purpose of faultvaddr and user_cr2.

What do these stand for and how are they used?

I have a hunch that this is the trap address but will it match EIP in saved registers?

I need to grab the signal number and the return EIP in my signal handler.

The signal number is obvious but the return EIP is not.

	Thanks in advance, Joel

---

#if __DARWIN_UNIX03 #define _STRUCT_X86_EXCEPTION_STATE32 struct __darwin_i386_exception_state _STRUCT_X86_EXCEPTION_STATE32 { unsigned int __trapno; unsigned int __err; unsigned int __faultvaddr; }; #else /* !__DARWIN_UNIX03 */

---
http://twitter.com/wagerlabs


_______________________________________________
Do not post admin requests to the list. They will be ignored.
Darwin-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden


Follow-Ups:

Re: __darwin_i386_exception_state, cr2 and faultvaddr
From: Terry Lambert <email@hidden>


Prev by Date:
Re: Why is virtual memory so high? (crash)

Next by Date:
Re: __darwin_i386_exception_state, cr2 and faultvaddr

Previous by thread:
Problems retrieving settings for proxy with authentication

Next by thread:
Re: __darwin_i386_exception_state, cr2 and faultvaddr

Index(es):

Date
Thread