_dr_siginfo_t Struct Reference

#include <dr_events.h>

Data Fields
int	sig
void *	drcontext
dr_mcontext_t	mcontext
dr_mcontext_t	raw_mcontext
bool	raw_mcontext_valid
byte *	access_address
bool	blocked
dr_fault_fragment_info_t	fault_fragment_info

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Detailed Description

Data structure passed with a signal event. Contains the machine context at the signal interruption point and other signal information.

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Field Documentation

byte* _dr_siginfo_t::access_address

For SIGBUS and SIGSEGV, the address whose access caused the signal to be raised (as calculated by DR).

bool _dr_siginfo_t::blocked

Indicates this signal is blocked. DR_SIGNAL_BYPASS is not allowed, and a second event will be sent if the signal is later delivered to the application. Events are only sent for blocked non-delayable signals, not for delayable signals.

void* _dr_siginfo_t::drcontext

The context of the thread receiving the signal.

dr_fault_fragment_info_t _dr_siginfo_t::fault_fragment_info

Information about the code fragment inside the code cache at the signal interruption point.

dr_mcontext_t _dr_siginfo_t::mcontext

The application machine state at the signal interruption point.

dr_mcontext_t _dr_siginfo_t::raw_mcontext

The raw pre-translated machine state at the signal interruption point inside the code cache. NULL for delayable signals. Clients are cautioned when examining code cache instructions to not rely on any details of code inserted other than their own.

bool _dr_siginfo_t::raw_mcontext_valid

Whether raw_mcontext is valid.

int _dr_siginfo_t::sig

The signal number.

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The documentation for this struct was generated from the following file:

• dr_events.h